33rd week of 2021 patent applcation highlights part 43 |
Patent application number | Title | Published |
20210255336 | SYSTEM AND METHOD FOR RECONVERGING GNSS POSITION ESTIMATES - A system and method for determining a receiver position can include determining a receiver position based on a set of satellite observations, determining the receiver position based on sensor measurements, determining a satellite observation discontinuity; based on the satellite observation discontinuity, determining a second receiver position. | 2021-08-19 |
20210255337 | ACCURACY OF GLOBAL NAVIGATION SATELLITE SYSTEM BASED POSITIONING USING HIGH DEFINITION MAP BASED LOCALIZATION - A vehicle, for example, an autonomous vehicle receives signals from a global navigation satellite system (GNSS) and determines accurate location of the vehicle using the GNSS signal. The vehicle performs localization to determine the location of the vehicle as it drives. The autonomous vehicle uses sensor data and a high definition map to determine an accurate location of the autonomous vehicle. The autonomous vehicle uses accurate location of the vehicle to determine RTK corrections that is used for improving GNSS location estimates at a future location. The RTK corrections may be transmitted to other vehicles. | 2021-08-19 |
20210255338 | CODING IN A POSITIONING SYSTEM - Embodiments describe determining position by selecting a set of digital pseudorandom sequences. The magnitudes of the cross-correlation between any two sequences of the chosen set are below a specified threshold. A subset of digital pseudorandom sequences are selected from the set such that the magnitudes of the autocorrelation function of each member of the subset, within a specified region adjacent to the peak of the autocorrelation function, are equal to or less than a prescribed value. Each transmitter transmits a positioning signal, and at least a portion of the positioning signal is modulated with at least one member of the subset. At least two transmitters of the plurality of transmitters modulate respective positioning signals with different members of the subset of digital pseudorandom sequences. | 2021-08-19 |
20210255339 | APPARATUS FOR MEASURING RADON AND THORON BY USING IONIZATION CHAMBER - An apparatus for measuring radon and thoron using an ionization chamber is proposed. The apparatus includes: a pump for air inflow suctioning and sending external air to at least one channel; a first sensor module outputting an alpha particle detection signal of an electrical signal by detecting alpha (α) particles discharged from radon and thoron; an air inflow delay module delaying air for a predetermined delay time and then outputting the air; a second sensor module outputting an alpha particle detection signal of an electrical signal by detecting alpha (α) particles discharged from radon and thoron; and a control module discriminating normal or abnormal alpha particle detection signals, counting the normal alpha particle detection signals discriminated for a predetermined measurement time, and calculating radioactive ray concentration values on the basis of the counted number of times of the normal alpha particle detection signals. | 2021-08-19 |
20210255340 | MULTI-MAXIMUM X-RAY SPECTRUM SYSTEMS AND MULTI-LAYER IMAGING SYSTEMS - Some embodiments include an x-ray system, comprising: an x-ray imager including a plurality of imaging layers; an x-ray source configured to generate an x-ray beam; and an x-ray prefilter; wherein: the x-ray prefilter is configured to adjust an energy spectrum of the x-ray beam to create or decrease a level of x-ray fluence of a local minimum between two of a plurality of local maximums. | 2021-08-19 |
20210255341 | RADIATION DETECTOR AND METHOD FOR MANUFACTURING RADIATION DETECTOR - A radiation detector includes a substrate including a first electrode portion, a radiation absorption layer disposed on one side with respect to the substrate and configured of a plurality of perovskite crystals, and a second electrode portion disposed on the one side with respect to the radiation absorption layer and being opposite to the first electrode portion with the radiation absorption layer interposed therebetween. Each of the plurality of perovskite crystals is formed to extend with a first direction in which the first electrode portion and the second electrode portion are opposite to each other as a longitudinal direction in a region between the first electrode portion and the second electrode portion in the radiation absorption layer. | 2021-08-19 |
20210255342 | DETECTOR FOR X-RAY FLUORESCENCE - Disclosed herein is a detector, comprising: a plurality of pixels, each pixel configured to count numbers of X-ray photons incident thereon whose energy falls in a plurality of bins, within a period of time; an X-ray absorption layer; wherein the X-ray absorption layer comprises an electrical contact within each of the pixels, and a focusing electrode surrounding the electrical contact and configured to direct to the electrical contact charge carriers generated by an X-ray photon incident within confines of the focusing electrodes; and wherein the detector is configured to add the numbers of X-ray photons for the bins of the same energy range counted by all the pixels. | 2021-08-19 |
20210255343 | X-Ray Detectors of High Spatial Resolution - An apparatus, system and method suitable for detecting X-ray are disclosed. In one example, the apparatus comprises: an X-ray absorption layer and a mask; wherein the mask comprises a first window and a second window, and a portion between the first window and the second window; wherein the first and second windows are not opaque to an incident X-ray; wherein the portion is opaque to the incident X-ray; and wherein the first and second windows are arranged such that charge carriers generated in the X-ray absorption layer by an X-ray photon propagating through the first window and charge carriers generated in the X-ray absorption layer by an X-ray photon propagating through the second window do not spatially overlap. | 2021-08-19 |
20210255344 | SYSTEMS AND METHODS FOR DETECTING MECHANICAL DISTURBANCES USING UNDERWATER OPTICAL CABLES - Systems and methods are provided for generating a model for detection of seismic events. In this regard, one or more processors may receive from one or more stations located along an underwater optical route, one or more time series of polarization states of a detected light signal during a time period. The one or more processors may transform the one or more time series of polarization states into one or more spectrums in a frequency domain. Seismic activity data for the time period may be received by the one or more processors, where the seismic activity data include one or more seismic events detected in a region at least partially overlapping the underwater optical route. The one or more processors then generate a model for detecting seismic events based on the one or more spectrums and the seismic activity data. | 2021-08-19 |
20210255345 | Velocity Tomography Using Time Lags of Wave Equation Migration - Velocity tomography using time lags of wave equation migration is disclosed. Seismic tomography is a technique for imaging the subsurface of the Earth with seismic waves by generated a migration velocity model from a multitude of observations using combinations of source and receiver locations. The migration velocity model may be updated in order to reduce depth differences of reflection events (also called residual depth errors (RDE)). Direct measurement of RDE may be difficult in certain complex subsurface areas. In such areas, the RDE may be reconstructed based on time lags of wave equation migration and then used to update the migration velocity model. In particular, the RDE may be directly reconstructed from the time lags of wave equation migration, such as based on a direct relation between RDE and the time lags. | 2021-08-19 |
20210255346 | System and Method for Seismic Imaging with Amplitude Recovery - A method is described for seismic imaging that receives a field seismic dataset and a synthetic seismic dataset wherein the synthetic seismic dataset is generated with no or known attribute variation with angle or other spatial coordinates; applies seismic processing to the field seismic dataset and the synthetic seismic dataset to generate a processed field seismic dataset and a processed synthetic seismic dataset wherein the processed field seismic dataset and the processed synthetic seismic dataset each contain attribute distortion due to the seismic processing; and corrects the attribute distortion in the field seismic dataset based on the distortion assessed from the processed synthetic seismic dataset to generate a corrected processed field dataset. The method may be executed by a computer system. | 2021-08-19 |
20210255347 | SYSTEM AND METHOD FOR CLASSIFYING SEISMIC DATA BY INTEGRATING PETROPHYSICAL DATA - A computer-implemented method is described for seismic facies identification including receiving a seismic dataset representative of a subsurface volume of interest; applying a model conditioned by petrophysical classifications to the seismic dataset to identify seismic facies and generate a classified seismic image; and identifying geologic features based on the classified seismic image. The method generates seismic facies probability volumes. | 2021-08-19 |
20210255348 | Depth-Continuous Estimation Of The Elastic Tensor Using Single Depth Borehole Sonic Measurements - A method and system for estimating a full elastic tensor. The method may comprise taking a measurement for compressional wave sonic data and cross-dipole shear data with a sonic logging tool at a first location as cross-dipole data, processing the compressional wave sonic data to produce a compressional wave slowness (P), and processing the cross-dipole shear data to produce a fast horizontal polarized shear wave slowness (SH) and a slow quazi-vertical shear wave slowness (qSV) as a function of depth. The method may further comprise setting an initial guess for at least five constants of the full elastic tensor for Vertical Transversely Isotropy (VTI) symmetry, determining a modeled slowness surfaces from the full elastic tensor, and comparing the modeled slowness surfaces with measured values of the P, the SH, and the qSV. The method may be performed by a system comprising a sonic logging tool and an information handling system. | 2021-08-19 |
20210255349 | COMPUTER-IMPLEMENTED METHOD AND SYSTEM FOR SMALL CAVE RECOGNITION USING SEISMIC REFLECTION DATA - A computer-implemented method and system implementing the method, are disclosed for computing small cave recognition models, using seismic reflection data. User inputs and earth-model data are obtained over points of incidence of a survey region, at various angles of incidence. Various models are then computed that serve for cave identification and take part in preliminary seismic exploration and reservoir characterization. Therefore, the attributes developed by the computer-implemented method and system serve as indicators of low velocity and density cave recognition which are capable of separating the cave events from the normal layer events; identifying caves with size larger than half to one wavelength of the dominant signal; and identifying cave diffractions from caves that contain a local maximal/minimal at around nine degrees in amplitude versus angle models. | 2021-08-19 |
20210255350 | HOUSING, HOUSING ASSEMBLY, MECHANICAL ARM, AND ROBOT OF MECHANICAL EQUIPMENT - A sensing circuit ( | 2021-08-19 |
20210255351 | OPERATING METHOD OF A METAL DETECTOR CAPABLE OF MEASURING TARGET DEPTH - The present invention, thanks to the horizontal positional tracking unit ( | 2021-08-19 |
20210255352 | METHOD OF CALCULATING TEMPERATURE OF A GEOLOGICAL STRUCTURE - A method of calculating the temperature of a geological structure is disclosed, wherein there is provided a magnetic parameter of the geological structure. The method includes inverting the magnetic parameter to estimate the temperature of the geological structure. | 2021-08-19 |
20210255353 | Geological Core Laboratory Systems and Methods - A geological core inspection system that includes a table to support core samples for inspection, a robotic geological core inspection system including a core sample sensing system to acquire sample inspection data (including an imaging sensor and a core sample position sensor), a core sample interaction system (including a dispensing system and a scoring system), and a robotic positioning system, and a control and communications system to provide for remote control of the core sample sensing system. The system further including a remote geological core inspection system to receive and communicate remote commands specifying requested operations of the robotic geological core inspection system (the control and communications system adapted to control operation of the core sample sensing system in response to the remote commands to perform the requested operations) and receive and present core data. | 2021-08-19 |
20210255354 | SYSTEMS AND METHODS FOR SECURITY INSPECTION - The present disclosure relates to a security inspection system. The system may include a re-inspection apparatus and a monitoring platform. The monitoring platform may receive information relating to a suspect article in a package and information relating to an electronic tag attached to the package. The monitoring platform may also generate re-inspection instructions for the package based on the information relating to the suspect article and the information relating to the electronic tag, and send the re-inspection instructions to the re-inspection apparatus. The re-inspection apparatus may re-inspect the suspect article in the package based on the re-inspection instructions. The information relating to the suspect article may be generated and sent by a security inspection machine. The information relating to the electronic tag may be generated and sent by a labelling apparatus. The package with the electronic tag may be delivered to the re-inspection apparatus by a distribution apparatus. | 2021-08-19 |
20210255355 | METHOD FOR COMBINING THE RESULTS OF ULTRASOUND AND X-RAY AND NEUTRON CEMENT EVALUATION LOGS THROUGH MODALITY MERGING - A combining mechanism for borehole logging tool data that employs modality merging to combine the output data of various borehole logging tools to provide a combined result and automated interpretation is provided, said mechanism comprising: at least one mechanism for assigning interpretive values to individual processed data types; at least one mechanism for combining the interpretive value data sets; and, at least one mechanism for providing an interpretation. A method of combining borehole logging tool data that employs modality merging to combine the output data of various borehole logging tools to provide a combined result and automated interpretation is also provided, said method comprising: assigning interpretive values to individual processed data types; combining the interpretive value data sets; and, providing an interpretation. | 2021-08-19 |
20210255356 | DRONE PRESENCE DETECTION - One aspect of the invention provides a device for passive detection of the presence of a drone. The device includes: an antenna; a receiver in communication with the antenna to passively receive wireless signals; and a processor in communication with the receiver and programmed to determine whether a drone is present based on a pattern in the wireless signals emitted from the drone that is correlated with a physical movement of the drone. Another aspect of the invention provides a method for passively detecting the presence of a drone. The method includes: receiving a wireless signal at a device comprising an antenna, a receiver and a processor; and analyzing the wireless signal to determine whether the wireless signal includes a pattern in the signal that is indicative of a physical movement of a drone. | 2021-08-19 |
20210255357 | CONTINUOUS-WAVE RADAR SYSTEM FOR DETECTING FERROUS AND NON-FERROUS METALS IN SALTWATER ENVIRONMENTS - The present invention includes systems and methods for a continuous-wave (CW) radar system for detecting, geolocating, identifying, discriminating between, and mapping ferrous and non-ferrous metals in brackish and saltwater environments. The CW radar system generates multiple extremely low frequency (ELF) electromagnetic waves simultaneously and uses said waves to detect, locate, and classify objects of interest. These objects include all types of ferrous and non-ferrous metals, as well as changing material boundary layers (e.g., soil to water, sand to mud, rock to organic materials, water to air, etc.). The CW radar system is operable to detect objects of interest in near real-time. | 2021-08-19 |
20210255358 | Method for estimating the subsurface total organic carbon (TOC) from well-log data - The invention describes a procedure for determining the subsurface total organic content (TOC) from data obtained in the well by at least three well-logging tools measuring corresponding parameters. Three tools, namely sonic, density and deep resistivity are selected. The time interval signals from the sonic tool are converted to the P-wave velocity. The product of signals obtained from the sonic and density tools (P-wave velocity×Bulk density=Acoustic Impedance (AI)) responds in the same direction to a variation of the volume of water and organic matter (OM) volume of the rocks, whereas the third tool (Deep Resistivity) reacts very differently in response to a change of one or other of these same components, in a three-pole diagram, with rock matrix, OM and water as the three components onto an Acoustic Impedance vs resistivity ratio function plane. The resistivity ratio function is the square root of the ratio between the water resistivity and the measured formation resistivity. The position of the curved line with OM=0% by volume is fixed connecting the rock matrix pole with that of water pole. The slope of the matrix-water curve is controlled by the tortuosity factor ‘a’ that is a function of the rock pore structure, grain size and level of compaction. Iso-OM curves run parallel to this 0% OM reference curve. The data points to be analysed can be calibrated accordingly by changing the resistivity of water (Rw) and the tortuosity factor (a) parameters. In a graph where the parameters used depend, for example, on the sonic velocity in the rock, the rock bulk density and on the electric resistivity of the formations, the iso-OM lines form a set of parallel curved lines. The OM is derived from there corresponding to each pair of values of the parameters measured in the well. The obtained organic matter volume is converted to Total organic carbon (TOC) in gram percentage using a conventional relation. | 2021-08-19 |
20210255359 | Method for estimating rock brittleness from well-log data - The invention describes a procedure for determining the shale brittleness index from data obtained in the well by at least three well-logging tools measuring corresponding parameters. Three tools, namely sonic, density and deep resistivity, are selected. The time interval signals from the sonic tool are converted to the P-wave velocity. The product of signals obtained from the sonic and density tools (P-wave velocity×Bulk density=Acoustic impedance (AI)) responds in the same direction to a variation of the volume of water and organic matter (OM) volume of the rocks, whereas the third tool (Deep Resistivity) reacts very differently in response to a change of one or other of these same components, in a three-pole diagram, with rock matrix, OM and water as the three components onto an Acoustic Impedance vs resistivity ratio function plane. The resistivity ratio function is the square root of the ratio between the water resistivity and the measured formation resistivity. The position of the curved matrix-water line with OM=0 fraction by volume is fixed connecting the rock matrix point with that of the water point. The slope of the matrix-water curve is controlled by the tortuosity factor ‘a’ that is selected for a formation zone considering the pore structure, grain size and level of compaction. The data points to be analysed can be calibrated accordingly by iterating the resistivity of water (Rw) and occasionally the tortuosity factor (a) parameter to obtain the Rw value. In a graph where the parameters used depend, for example, on the sonic velocity in the rock, the rock bulk density and on the electric resistivity of the formations, the iso quartz/calcite-content lines are denoted as iso-brittleness line as with an increase in quartz/calcite content, both organic content and porosity decrease, resulting in an increase in brittleness. These iso-brittleness lines form a set of parallel curved lines intersecting the matrix-water reference curved line. Brittleness is derived from that graph corresponding to each pair of values of the parameters measured in the well. | 2021-08-19 |
20210255360 | SENSING DEVICE - Among other things, a dispensing device is described herein. A sensor component of the dispensing device includes an emitter (e.g., of an emitter array) in optical communication with a detector array for sensing objects disposed between the emitter and the detector array. An object detector is configured to identify a presence of an object between the emitter and the detector array based upon a readout signal generated by the detector array. A calibration component is configured to recalibrate the object detector responsive to determining that an obstruction is present between the emitter and the detector array. The recalibration allows the detector array and the emitter array to detect the presence of an object regardless of the obstruction. A material (e.g., soap, sanitizer, etc.) may be dispensed from the dispensing device responsive to detecting the presence of the object. | 2021-08-19 |
20210255361 | SYSTEMS AND METHODS FOR OPTIMUM SUBSURFACE SENSOR USAGE - Disclosed are systems and methods for receiving surface data and downhole sensor data associated with at least one first hydraulic fracturing well, generating a prediction model for the at least one first hydraulic fracturing well that determines a prediction for a subsurface value for the at least one first hydraulic fracturing well, generating an error model for the at least one first hydraulic fracturing well that determines an estimated prediction error between the prediction for the subsurface value for the at least one first hydraulic fracturing well and an actual subsurface value for the at least one first hydraulic fracturing well, determining a status of at least one feature associated with the estimated prediction error between a prediction for a subsurface value for at least one second hydraulic fracturing well and an actual subsurface value for the at least one second hydraulic fracturing well, and collecting additional downhole sensor data. | 2021-08-19 |
20210255362 | ESTIMATING SOIL PROPERTIES WITHIN A FIELD USING HYPERSPECTRAL REMOTE SENSING - A method for building and using soil models that determine soil properties from soil spectrum data is provided. In an embodiment, building soil model may be accomplished using soil spectrum data received via hyperspectral sensors from a land unit. A processor updates the soil spectrum data by removing interference signals from the soil spectrum data. Multiple ground sampling locations within the land unit are then determined based on the updated soil spectrum data. Soil property data are obtained from ground sampling at the ground sampling locations. Soil models that correlate the updated soil spectrum data with the soil property data are created based on the updated soil spectrum data and the soil property data. The soil models are sent to a storage for future use. | 2021-08-19 |
20210255363 | SEMI-SUPERVISED DEEP MODEL FOR TURBULENCE FORECASTING - A method for employing a unified semi-supervised deep learning (DL) framework for turbulence forecasting is presented. The method includes extracting historical and forecasted weather features of a spatial region, calculating turbulence indexes to fill feature cubes, each feature cube representing a grid-based 3D region, and building an encoder-decoder framework based on convolutional long short-term memory (ConvLSTM) to model spatio-temporal correlations or patterns causing turbulence. The method further includes employing a dual label guessing component to dynamically integrate complementary signals from a turbulence forecasting network and a turbulence detection network to generate pseudo-labels, reweighing the generated pseudo-labels by a heuristic label quality detector based on KL-Divergence, applying a hybrid loss function to predict turbulence conditions, and generating a turbulence dataset including the predicted turbulence conditions. | 2021-08-19 |
20210255364 | ANTIGLARE FILM-ATTACHED SUBSTRATE, IMAGE DISPLAY APPARATUS, AND DIGITAL SIGNAGE - An antiglare film-attached substrate (la) includes a substrate ( | 2021-08-19 |
20210255365 | ANTI-GLARE FILM AND POLARIZER WITH THE SAME - The present invention is to provide an anti-glare film. The anti-glare film comprises a transparent substrate and an anti-glare layer formed on a surface of the substrate, wherein the anti-glare coating layer comprises 75 to 90 weight percent of an acrylic-based hard coating composition, 0.01 weight percent to 10 weight percent of silica nanoparticles and 5 weight percent to 20 weight percent of organic microparticles. The anti-glare film provides a satisfied anti-glare property and a surface fineness, and especially the anti-glare property at the wide viewing angle to enhance the visibility of the display. | 2021-08-19 |
20210255366 | ANTI-GLARE FILM AND POLARIZER WITH THE SAME - The present invention is to provide an anti-glare film. The anti-glare film comprises a polyethylene terephthalate (PET) substrate and an anti-glare layer formed on a surface of the PET substrate, wherein the anti-glare coating layer comprises 75 to 90 weight parts of an acrylic-based resin, 0.01 to 10 weight parts of silica nanoparticles 5 to 20 weight parts of organic microparticles and 0.05 to 2 weight parts of leveling agent. The anti-glare film has a total haze ranging between 35% and 50%, a surface haze ranging between 10% and 15% and a gloss at a viewing angle of 60 degrees between 30% and 50% thereof. The anti-glare film can provide satisfactory anti-glare properties, high precision, surface fineness, no flicker, good visibility and also fine adhesion between layers. | 2021-08-19 |
20210255367 | DISPLAY DEVICE - Provided is a display device including a display panel including a first area, a second area, and a bendable area which is disposed between the first and second areas and is bent so that the second area is disposed below the first area, a driving IC disposed below the second area, a window disposed on the first area, a window protection layer disposed on the window, and a first panel protection layer disposed below the first area. When viewed on a plane, one side of the window protection layer and one side of the window are spaced apart from a first boundary between the first area and the bendable area, and the one side of the window protection layer is disposed between the first boundary ad the one side of the window. | 2021-08-19 |
20210255368 | OPTICAL SYSTEM - An optical system is provided. The optical system includes a first optical module with a first light-entering hole, a second optical module with a second light-entering hole, and a third optical module with a third light-entering hole. The second light-entering hole is close to the first light-entering hole and the third light-entering hole. The focal length of the second optical module is different from the focal length of the first optical module and the focal length of the third optical module. | 2021-08-19 |
20210255369 | OPTICAL SYSTEM - An image capturing device is provided. The image capturing device includes an aperture unit, an image sensor, and a first lens unit. The first lens unit includes a first light-entering end and a first light-exiting end for focusing an external light on the image sensor. The aperture unit, the first lens unit, and the image sensor are sequentially arranged in a travel direction of the external light. | 2021-08-19 |
20210255370 | LIQUID LENSES AND METHODS OF MANUFACTURING LIQUID LENSES - A method of fabricating a liquid lens or an array of liquid lenses, and the corresponding liquid lens or array of lenses is disclosed. The method includes patterning an insulative layer ( | 2021-08-19 |
20210255371 | LIQUID LENS MODULE, CAMERA MODULE INCLUDING THE SAME, AND OPTICAL DEVICE INCLUDING THE MODULE - A liquid lens module includes a first plate comprising a cavity accommodating a conductive liquid and a non-conductive liquid; second and third plates disposed above and below the first plate, respectively; and first and second electrodes disposed on one side and another side of the first plate, respectively, wherein a ratio of a thickness of the first plate to a width of an incidence opening formed below the second plate in the cavity is greater than 0.3. | 2021-08-19 |
20210255372 | DARK MIRROR THIN FILMS - A system includes an optical film stack, where the optical film stack includes a substrate and a first inorganic layer on the substrate. The optical film stack also includes a first dielectric layer on the first inorganic layer and a first metal layer on the first dielectric layer. The optical film stack also includes a second dielectric layer on the first metal layer and a second inorganic layer on the second dielectric layer. The optical film stack also includes a second metal layer on the second inorganic layer. | 2021-08-19 |
20210255373 | Variable Mesh Low Mass MEMS Mirrors - The present disclosure provides a component, such as a MEMS mirror or other generally disc-shaped component, having a variable mesh pattern across a backside surface thereof. The variable mesh includes ribs having a first thickness near a center portion or axis of rotation of the components, and a second narrower thickness at portions farther from the center or axis of rotation. | 2021-08-19 |
20210255374 | DIFFRACTIVE OPTICAL ELEMENT AND ILLUMINATION OPTICAL SYSTEM - A diffractive optical element includes: a diffraction unit; and a lens unit disposed on a light incident side of the diffraction unit. The lens unit includes: a substrate; and a protrusion and recess portion disposed on a side opposite to a light incident side of the substrate. The protrusion and recess portion includes: a periodic structure of a relief-protrusion portion disposed in a central part, a periodic structure of a stepwise grating disposed in a central part simulating the relief-protrusion portion, or a combination thereof; and a grating disposed in a portion other than the central part. The number of steps of the stepwise grating disposed in the central part is larger than the number of steps of the grating disposed in the portion other than the central part. | 2021-08-19 |
20210255375 | COATED OPTICAL SUBSTRATES - Optical devices having multi-functional coatings. | 2021-08-19 |
20210255376 | OPTICAL DEVICE AND A METHOD FOR BONDING - An optical device that may include an enclosure that comprises a first element, a second element; wherein the first element and the second element are at least partially transparent; a movable element that is configured to move within an internal space defined by the enclosure; and wherein the enclosure is sealed and is configured to maintain a pressure difference between a pressure level that exists within the internal space and an ambient pressure level. | 2021-08-19 |
20210255377 | 3D IDENTIFICATION FILTER - A 3D identification filter ( | 2021-08-19 |
20210255378 | OPTICAL FILTER DEVICE, SYSTEM, AND METHODS FOR IMPROVED OPTICAL REJECTION OF HIGH ANGLE OF INCIDENCE (AOI) LIGHT - An optical filter device, system, and methods for improved optical rejection of high angle of incidence (AOI) light is disclosed. For example, an analyte detection system is provided that includes an excitation light source for illuminating an implantable sensor and an optical detector for collecting emission light from the implantable sensor. Further, the optical detector portion of the analyte detection system features an optical filter device including a surface-treated microchannel wherein the surface-treated microchannel serves to absorb, trap, and/or block high-AOI light. Further, a method of operation of the presently disclosed microchannel-based optical filter device including a surface-treated microchannel is provided with respect to the high optical rejection of high-AOI light. | 2021-08-19 |
20210255379 | POLARIZER SUBSTRATE AND MANUFACTURING METHOD THEREOF - A polarizer substrate includes a substrate, a reflective layer, and a metal pattern layer. The reflective layer is located on the substrate and has a transmission area and a reflective area. The metal pattern layer is located on the reflective layer and the substrate. The metal pattern layer includes a polarizer structure and a microstructure. The polarizer structure includes a plurality of grid lines overlapping the transmission area. A thickness of each of the grid lines is 200 nm to 500 nm, a width of each of the grid lines is 30 nm to 70 nm, and a distance between each adjacent two of the grid lines is 30 nm to 70 nm. The microstructure overlaps the reflective area, and a thickness of the microstructure is 20 nm to 500 nm. | 2021-08-19 |
20210255380 | BACKLIGHT UNIT AND DISPLAY DEVICE INCLUDING THE SAME - A backlight unit for a display device includes: a light guide including a light incident surface; a substrate facing the light incident surface; a plurality of light sources on one surface of the substrate facing the light incident surface; and a first member disposed between the substrate and the light incident surface to space the light sources apart from the light guide. The first member includes: a support on one surface of the substrate that do not include the light source, the support having a first surface facing the light incident surface and a second surface facing the light sources; and a first layer disposed on the first surface and the second surface of the support to improve luminance uniformity across the light incident surface. | 2021-08-19 |
20210255381 | COLLIMATING BACKLIGHT MODULE, PREPARATION METHOD THEREOF AND DISPLAY DEVICE - The present disclosure provides a collimating backlight module, a preparation method thereof and a display device. The method for preparing the collimating backlight module includes: providing a light guide plate; forming a protective layer on a light emitting side of the light guide plate, where the protective layer simultaneously covers a light emitting area and a non-light emitting area of the light emitting side, a hollow area is formed on the protective layer, to expose the light emitting area of the light guide plate; and forming a light taking grating on the light emitting area of the light guide plate. | 2021-08-19 |
20210255382 | BACKLIGHT MODULE, LIGHT GUIDE PLATE, AND PREPARATION METHOD FOR CONDUCTIVE HYDROGEL OF LIGHT GUIDE PLATE - Backlight module, light guide plate, and preparation method for conductive hydrogel thereof. Main body of light guide plate is optical-glass material. Cavity is provided in light guide plate, filled with conductive hydrogel. Either end of light guide plate is provided with electrode electrically connected to conductive hydrogel in cavity. When not electrified, conductive hydrogel is in liquid state, when electrified, conductive hydrogel in cavity changes to gel state. Microcrystal particles are added to conductive hydrogel to improve light refection function and light diffuse reflection function of light guide plate and backlight module, to allow more light rays to penetrate through light guide plate to improve luminous efficacy. Addition of quantum dots or fluorescent powder to conductive hydrogel can further increase color gamut of backlight, such that liquid crystal display device has better effect. | 2021-08-19 |
20210255383 | OPTICAL DEVICE - The disclosure provides an optical device including a diffusion layer, a light-emitting device, and a first photoluminescent film. The diffusion layer is disposed opposite to the light-emitting device, and the light-emitting device includes a plurality of light-emitting units. The first photoluminescent film is between the diffusion layer and the light-emitting device. A first distance between the first photoluminescent film and the diffusion layer is greater than a second distance between the first photoluminescent film and one of the plurality of light-emitting units. The optical device of the disclosure may improve brightness efficiency. | 2021-08-19 |
20210255384 | DISPLAY APPARATUS, BACKLIGHT MODULE IN DISPLAY APPARATUS, AND METHOD OF DISPLAYING IMAGE - A backlight module is provided. The backlight module includes a light guide plate; a plurality of reflective gratings on a first side of the light guide plate; and a plurality of reflectors on a second side of the light guide plate. A respective one of the plurality of reflective gratings is configured to diffract and reflect a portion of light totally reflected in the light guide plate into diffracted light transmitting across the light guide plate from the first side toward the second side. A portion of the diffracted light has a respective wavelength range to be received by a respective reflector. The respective one of the plurality of reflectors is configured to reflect the portion of the diffracted light having the respective wavelength range transmitting from the second side toward the first side to a position between the respective grating and an adjacent reflective grating. | 2021-08-19 |
20210255385 | WAVEGUIDE PHOTODETECTOR - Provided is a waveguide photodetector including a semiconductor substrate, a first optical waveguide and a second optical waveguide, which are sequentially laminated on the semiconductor substrate, in which each of the first optical waveguide and the second optical waveguide includes a first portion and a second portion, and the first portion extends from the second portion in a first direction parallel to a top surface of the semiconductor substrate, a refractive index matching layer disposed on the second portion of the second optical waveguide, a clad layer disposed on the refractive index matching layer, and an absorber disposed between the refractive index matching layer and the clad layer. Here, the second optical waveguide has a first conductive-type, the clad layer has a second conductive-type opposite to the first conductive-type, and the refractive index matching layer includes a first semiconductor layer that is an intrinsic semiconductor layer. | 2021-08-19 |
20210255386 | OPTICAL DIELECTRIC WAVEGUIDE STRUCTURE - An optical subassembly includes a planar dielectric waveguide structure that is deposited at temperatures below 400 C. The waveguide provides low film stress and low optical signal loss. Optical and electrical devices mounted onto the subassembly are aligned to planar optical waveguides using alignment marks and stops. Optical signals are delivered to the submount assembly via optical fibers. The dielectric stack structure used to fabricate the waveguide provides cavity walls that produce a cavity, within which optical, optoelectronic, and electronic devices can be mounted. The dielectric stack is deposited on an interconnect layer on a substrate, and the intermetal dielectric can contain thermally conductive dielectric layers to provide pathways for heat dissipation from heat generating optoelectronic devices such as lasers. | 2021-08-19 |
20210255387 | BIASED TOTAL THICKNESS VARIATIONS IN WAVEGUIDE DISPLAY SUBSTRATES - A plurality of waveguide display substrates, each waveguide display substrate having a cylindrical portion having a diameter and a planar surface, a curved portion opposite the planar surface defining a nonlinear change in thickness across the substrate and having a maximum height D with respect to the cylindrical portion, and a wedge portion between the cylindrical portion and the curved portion defining a linear change in thickness across the substrate and having a maximum height W with respect to the cylindrical portion. A target maximum height D | 2021-08-19 |
20210255388 | MULTI-SPOT LASER PROBE WITH MULTIPLE SINGLE-CORE FIBERS - The present disclosure relates to a laser probe assembly coupled to a laser system through an optical fiber cable. In one example, the laser probe assembly comprises a probe tip coupled to the probe body, the probe tip housing multiple fibers. Each of the multiple fibers comprises a proximal end that couples to the laser system and a distal end that terminates in the probe tip, a single core for transporting a laser beam provided by the laser system, and a cladding surrounding the core. The laser probe assembly also comprises a lens for projecting multiple laser beams provided by the multiple fibers on to a surgical site. Within the probe tip, parts of outer surfaces of portions of any two adjacent fibers of the multiple fibers touch. Also, the multiple fibers are at least substantially centered with respect to the lens. | 2021-08-19 |
20210255389 | DISTRIBUTED PASSIVE OPTICAL NETWORKS - A passive optical network includes one or more multi-service terminals each having a housing and a plurality of ruggedized plug-receiving distribution ports accessible from outside the housing. The multi-service terminals also each include an optical power splitter or wave division multiplexer for splitting an optical signal and directing the split signal to the plug-receiving distribution ports. Some of the multi-service terminals provide a different power split ratio from others of the multi-service terminals. | 2021-08-19 |
20210255390 | MODAL-NOISE MITIGATOR AND ASSOCIATED METHOD - A method for mitigating modal noise includes applying a time-varying mechanical force to a fiber segment of the multimode optical fiber in at least a first direction orthogonal to a fiber axis of the multimode optical fiber within the fiber segment. A modal-noise mitigator for a multimode optical fiber includes an actuator configured to apply a time-varying mechanical force to a fiber segment of the multimode optical fiber in at least a first direction orthogonal to a fiber axis of the multimode optical fiber within the fiber segment. | 2021-08-19 |
20210255391 | FIBER SPLITTER AND CONNECTION MODULE - A fiber optic splitter arrangement includes a housing defining a non-enterable interior; at least one optical power splitter disposed within the non-enterable interior; an input port carried by the housing; and a multi-fiber connection port carried by the housing. The input port and/or the multi-fiber connection port may be attached directly to the housing. Output fibers of more than one optical power splitter disposed within the non-enterable interior may be routed to the same multi-fiber connection port. Output fibers of a single optical power splitter may be routed to multiple multi-fiber connection ports. | 2021-08-19 |
20210255392 | Apertures For Reduced Dynamic Crosstalk And Stray Light Control - The present disclosure provides systems and methods for preventing or minimizing optical crosstalk in an optical circuit switch (“OCS”). The OCS may include a collimator lens assembly. The collimator lens assembly may include a lens array defined by a plurality of ports. Each port may include a lenslet and a spacer paired with each lenslet. Crosstalk may occur when light from other ports enter the target port's optical fiber. The collimator lens assembly may include an insert positioned relative to the lenslet. The insert may define an aperture that allows light from the target port to pass through. The insert may prevent a portion of light from adjacent ports from passing through the aperture. The insert may be located between the lenslet and spacer, on the curved surface of the lenslet, or on a plate located at a distance from the front of the lenslet. | 2021-08-19 |
20210255393 | OPTICAL DEVICE - An aspect of the disclosure provides an optical device including a microring resonator (MRR). | 2021-08-19 |
20210255394 | TUNABLE VERNIER EFFECT LASER EMISSION DEVICE - The invention relates to a wavelength-tunable laser emission device ( | 2021-08-19 |
20210255395 | Filling Resin and Optical Waveguide Circuit Filled with Filling Resin - Provided is an optical waveguide circuit in which the space between waveguides, a waveguide groove, or the space between fibers is filled with a resin where a wavelength shifts to positive (shifts backward) instead of a conventional resin where a wavelength shifts to negative (shifts forward), to return a refractive index having decreased by an instantaneous change to the original refractive index. In the filling resin with which the space between the waveguides, the waveguide groove, the space between the fibers, or the space between the fiber and the waveguide is filled, upon input of light, a refractive index of a portion through which the light passes instantaneously decreases, and then the refractive index gradually increases to compensate the initial decrease in the refractive index. | 2021-08-19 |
20210255396 | Dual Core Waveguide - The invention described herein pertains to the structure and formation of dual core waveguide structures and to the formation of optical devices including spot size converters from these dual core waveguide structure for the receiving and routing of optical signals on substrates, interposers, and sub-mount assemblies. | 2021-08-19 |
20210255397 | OPTICAL WAVEGUIDE WITH SPATIALLY MODULATED INDEX REGION - An optical waveguide propagates an optical mode at a first wavelength along a length of the waveguide. The optical waveguide has an optical core with a substantially polygonal cross-section in a plane substantially perpendicular to the length of the waveguide. The optical core has an index of refraction n1 at the first wavelength. A first optical cladding is disposed adjacent the optical core and has an index of refraction n2 at the first wavelength, n22021-08-19 | |
20210255398 | FIBER-TO-CHIP GRATING COUPLER FOR PHOTONIC CIRCUITS - Disclosed is a system and method for communication using an efficient fiber-to-chip grating coupler with a high coupling efficiency. In one embodiment, a method for communication, includes: transmitting optical signals between a semiconductor photonic die on a substrate and an optical fiber array attached to the substrate using at least one corresponding grating coupler on the semiconductor photonic die, wherein the at least one grating coupler each comprises a plurality of coupling gratings, a waveguide, a cladding layer, a first reflection layer and a second reflection layer, wherein the plurality of coupling gratings each comprises at least one step in a first lateral direction and extends in a second lateral direction, wherein the first and second lateral directions are parallel to a surface of the substrate and perpendicular to each other in a grating plane, wherein the first reflection layers are configured such that the plurality of coupling gratings is disposed between the first reflection layer and the cladding layer, wherein the second reflection layer are configured such that the cladding layer is disposed between the second reflection layer and the waveguide. | 2021-08-19 |
20210255399 | Multi-Axis MEMS Mirror Parking - The present disclosure provides an improved method of parking a microelectromechanical system (MEMS) mirror in an array of MEMS mirrors, wherein the method protects against single high voltage channel failures in a driver. Two separate voltages are applied to each MEMS mirror to move and park the mirror out of a camera sensor field of view in a servo system. For example, a first voltage may be applied in a positive X direction and a second voltage may be applied in a positive Y direction. This will then move the mirror in a diagonal direction. In the event one of the high voltage channels fail, the mirror will still be parked and outside of the camera sensor field of view. Using two voltages, every mirror will have 4 possible parking positions. In the event of a high voltage channel failure, the servo system can park a mirror affected by the failure in an opposite corner. Moreover, if 2-axis parking is not feasible, such as if both Y axes fail, the mirror can use single-voltage parking. | 2021-08-19 |
20210255400 | OPTICAL CONNECTOR - An optical connector including a housing body having a ferrule, an outer housing, a latch, and a tab is disclosed. The latch extends from a proximal end toward a front end of the optical connector and includes an engaging part at a distal end. The tab is placed on an outer side of the latch, movable with respect to the outer housing, and pushes down the engaging part toward the housing body according to movement of the tab. The distal end of the latch floats to space apart from the housing body. A first protrusion is disposed on an inner side of the tab. The optical connector is configured to contact an inner side of the latch with the first protrusion to push down the engaging part toward the housing body with the first protrusion as a fulcrum when the engaging part is engaged with the external device. | 2021-08-19 |
20210255401 | DEVICES AND METHODS OF TESTING OPTICAL SYSTEMS - An optical system comprising: an optical fiber defining a longitudinal end; a dust cap disposed adjacent to the longitudinal end of the optical fiber, the dust cap comprising: a body comprising: a first end and a second end; and a bore extending from the first end of the body toward the second end of the body; and an optical reflector disposed within the body in optical communication with the bore. | 2021-08-19 |
20210255402 | FERRULES INCLUDING KEYING FEATURES AND FIBER OPTIC JUNCTIONS INCLUDING THE SAME - Fiber optic connectors and junctions between fiber optic connectors include ferrules terminating a plurality of optical fibers, the ferrules having a ferrule keying portion that rotationally aligns and constrains the ferrules with a guide keying portion of an annular guide tube. The ferrules may further aligned and constrained and aligned in a lateral direction with a ferrule sleeve in the junction of connectors. Each of the ferrule sleeve and the guide keying portion individually constrain movement of the ferrules in different dimensions, the guide keying portion rotationally aligning and constraining the ferrules, while allowing freedom of movement in a lateral direction, and the ferrule sleeve aligning and constraining the ferrules in the lateral direction, while allowing rotational freedom of movement. | 2021-08-19 |
20210255403 | Alignment Adapter and Alignment Design for a Connector Therefor - An adapter with novel alignment features engages alignment features on a plug, providing general alignment of the ferrule holders and ferrules in the plug. After the plug engages the adapter, the ferrule holders engage a second set of alignment features in the adapter to provide fine alignment for the ferrules. | 2021-08-19 |
20210255404 | ROTARY CLIP FOR DUPLEX POLARITY CHANGE - A paired simplex fiber optic connector assembly comprises a clip that holds two simplex LC connectors together to yield a duplex connector that can be plugged into a duplex adapter. In some embodiments, the two simplex connectors are held in place by rails formed on both sides of the clip. In other embodiments, a side arm is formed on each side of the clip, the side arm comprising a hub that extends from the clip and a non-circular flange formed on the end of the hub. The flange is configured to engage with channels formed on the sides of the simplex connectors, thereby holding the simplex connectors in place. The simplex connectors are attached to the clip by rotating the connectors about the flange, thereby engaging the channels with the flanges. | 2021-08-19 |
20210255405 | POLARIZATION CONTROLLER - Conventional systems use a polarization-maintaining fiber (PMF) in order to maintain the light in the same polarization between a laser light source and an optical waveguide on a photonic integrated circuit (PIC). A polarization controller may be provided at an input port of the PIC configured for the manipulation of one or both of the TE | 2021-08-19 |
20210255406 | OPTICAL SEMICONDUCTOR DEVICE AND OPTICAL MODULE - An optical semiconductor device comprises: a first wiring pattern provided on a carrier mounting surface of a dielectric substrate; a first reference potential pattern surrounding the first wiring pattern; a carrier block provided on the carrier mounting surface and having a main surface, a side surface, and a second wiring pattern and a second reference potential pattern constituting coplanar lines; and an optical semiconductor element provided on the main surface. One end portion of the second wiring pattern extends to at least an end edge on the side surface side in the main surface and is conductively joined to the first wiring pattern with a conductive joining material therebetween. One end portion of the second reference potential pattern extends to at least the end edge on the side surface side in the main surface and is conductively joined to the first reference potential pattern with a conductive joining material therebetween. | 2021-08-19 |
20210255407 | FIBER TERMINATION ENCLOSURE WITH MODULAR PLATE ASSEMBLIES - Certain types of fiber termination enclosures include an enclosure and at least one of a plurality of plate module mounting assemblies. Example plate module mounting assemblies include a termination panel plate assembly; a splice tray plate assembly; a cable spool plate assembly; and a drop-in plate assembly. Example cable spool plate assemblies include a cable spool arrangement rotationally coupled to a mounting plate, which fixedly mounts within the enclosure housing. A stand-off mount element may be disposed on the front of the cable spool arrangement to rotate in unison with the cable spool arrangement. The stand-off mount element may include one or more termination adapters. | 2021-08-19 |
20210255408 | CABLE ENTRY SEALING SYSTEMS FOR TELECOMMUNICATION ENCLOSURES - A cable entry sealing system includes a housing having a first housing end and a second housing end; a sealing and shielding member having a portion insertable into the housing, the sealing and shielding member comprising: a plug portion and a medial sealing portion, extending from the plug portion. The medial sealing portion includes a first raised edge, a lip sealing portion extending outwardly from the first raised edge, and a medial body section having a second raised edge. The system further includes an end sealing portion, extending from the medial portion, and at least one compression member coupled to the end sealing portion. The sealing and shielding member is configured to prevent contamination into the cable entry sealing system and distortion of the at least one compression member. | 2021-08-19 |
20210255409 | CABLE SEALING UNIT WITH CABLE SEALING MODULES - One aspect of the present disclosure relates to an enclosure system including enclosures of different sizes, shapes and styles that are all compatible with gel sealing modules having a given module form factor or a multiple of the given module form factor. In this way, gel sealing modules having one form factor and/or multiples thereof can be universally used across an entire product line of enclosures. | 2021-08-19 |
20210255410 | ADAPTER BLOCK ASSEMBLY - An adapter block assembly includes two housing pieces that cooperate to hold one or more adapters therebetween. The two housing pieces are removably latched together. Labels can be placed over the latches. Certain types of adapter block assemblies are configured to receive multi-fiber plug connectors. Certain types of adapter block assemblies include securement arrangements at opposite ends thereof to aid in mounting the adapter block assemblies to frames, trays, chassis, or other such structures. | 2021-08-19 |
20210255411 | LOW COST HARDENED FIBER OPTIC CONNECTION SYSTEM - The present disclosure relates to a ruggedized/hardened fiber optic connection system designed to reduce cost. In one example, selected features of a fiber optic adapter are integrated with a wall ( | 2021-08-19 |
20210255412 | METHODS, KITS, AND SYSTEMS INCORPORATING A SELF-AMALGAMATING TAPE FOR CLAMPING FIBER OPTIC CABLE - Disclosed herein is a method including wrapping a self-amalgamating tape around a portion of a cable jacket of the fiber optic cable to provide a wrapped portion; and clamping the fiber optic cable at the wrapped portion with a clamp. Upon clamping, the self-amalgamating tape is between the clamp and the cable jacket and the clamp compresses the self-amalgamating tape. | 2021-08-19 |
20210255413 | JACKET REMOVAL TOOL FOR FIBER OPTIC CABLES - The present disclosure relates to a handheld tool for scoring a jacket of a fiber optic cable. The handheld tool includes a U-shaped channel seat for supporting the fiber optic cable and a scoring head configured to support a cutting blade. The cutting blade can be fixed to the scoring head by a fastener and can be adjusted by utilizing a set screw. A blade setting block can be used to calibrate or adjust the cutting blade position prior to the operation of scoring the jacket of the fiber optic cable. | 2021-08-19 |
20210255414 | VARIABLE BEAM SIZE VIA HOMOGENIZER MOVEMENT - An ablation system for ablating a material can include a laser source, a set of homogenizing optics, and a homogenizing optics adjustment device. The laser source is for generating a laser beam. The set of homogenizing optics receives the laser beam and includes a first homogenizer and a second homogenizer. The homogenizing optics adjustment device carries the homogenizing optics, the homogenizing optics adjustment device configured to selectably adjust the position of at least one of the first homogenizer and the second homogenizer in order change a size of the laser beam, with a change in size of the beam changing the fluence thereof. The ablation system can be incorporated within a laser-ablation based analytical system, where the laser-ablation based analytical system includes a spectrometer. | 2021-08-19 |
20210255415 | APPARATUS AND SYSTEM - An apparatus includes a lens, a cam barrel configured to rotate around an optical axis, an actuator disposed on an inner peripheral side of the cam barrel, a movement unit disposed on the inner peripheral side of the cam barrel and configured to move the lens in an optical-axis direction, and an adjustment unit disposed on the inner peripheral side of the cam barrel and configured to adjust a position of the lens. The movement unit, the adjustment unit, and the actuator are arranged at different phases from one another in a circumferential direction of the cam barrel. Widths of the movement unit, the adjustment unit, and the actuator in the optical-axis direction overlap one another. | 2021-08-19 |
20210255416 | OPTICAL DRIVING APPARATUS AND OPTICAL APPARATUS - An optical driving apparatus includes an actuator configured to drive an optical element holder in an optical axis direction, a first rolling member and a second rolling member each fixed rollably to the optical element holder, a first guide member configured to guide the optical element holder in the optical axis direction, a second guide member configured to restrict the optical element holder from rotating around the first guide member, a first biasing member configured to generate a first biasing force to press the first rolling member against the first guide member, and a second biasing member configured to generate a second biasing force to press the second rolling member against the second guide member. The first biasing member generates the first biasing force as a magnetic force. A reaction force of the second biasing force acts on the actuator. | 2021-08-19 |
20210255417 | LENS DRIVE DEVICE - A lens drive device including, a variation in a distance between the support point and an action point of the leaf spring member is suppressed, and a variation in a biasing force of the leaf spring member determined according to the distance between the support point and the action point is also suppressed. As a result, a frictional force of the frictional engagement between a friction engagement member and an actuator is uniform, and driving characteristics of the lens drive device are uniform. | 2021-08-19 |
20210255418 | Imaging Module, Camera Assembly, and Electronic Device - The present disclosure provides an imaging module, a camera assembly and an electronic device. The imaging module includes a housing, including a light inlet; a reflective element, a mounting base, and an image sensor arranged in the housing; the reflective element being configured to redirect incident light from the light inlet to the image sensor, and the image sensor sensing the incident light outside the imaging module; the reflective element arranged on the mounting base; the mounting base being arranged with a limiting structure connected to the reflective element and configured to limit a position of the reflective element on the mounting base. | 2021-08-19 |
20210255419 | OPTICAL DRIVING APPARATUS AND OPTICAL APPARATUS - An optical driving apparatus includes a holder configured to hold an optical element and including a first contact portion and a second contact portion that are spaced from each other in an optical axis direction, a guide member configured to contact the first contact portion and the second contact portion and to guide the holder in the optical axis direction, and a biasing member configured to generate a biasing force serving as a magnetic force configured to bias the holder so that the first contact portion and the second contact portion are pressed against the guide member. The biasing member is disposed between the first contact portion and the second contact portion in the optical axis direction. | 2021-08-19 |
20210255420 | Flexure Device - Described examples include a device having a body. The device also has a first flexure on a first surface of the body, the first flexure having a first modulus of elasticity. The device has a second flexure on a second surface of the body, the second surface of the body opposite to the first surface of the body, and the second flexure having a second modulus of elasticity. The device also has a fixed member on a surface of the second flexure opposite to the first flexure. The device also has an adjustment device on a surface of the first flexure opposite to the second flexure. | 2021-08-19 |
20210255421 | IMAGING APPARATUS - An imaging apparatus includes an imaging element that captures an image for detecting a phase difference in a predetermined direction on an image surface in order to detect a focal state of an image formed by an image formation lens, an imaging element driving unit configured to be able to drive the imaging element in a parallel movement direction and a rotation direction within a plane perpendicular to an optical axis of the image formation lens, and a focus detection unit configured to detect a focus by rotating the imaging element using the imaging element driving unit in accordance with a result of an image captured by the imaging element. | 2021-08-19 |
20210255422 | REAR CONVERTER LENS AND IMAGING APPARATUS - The rear converter lens consists of, in order from an object side: a first lens group that has a positive refractive power; a second lens group that has a negative refractive power; and a third lens group that has a positive refractive power. The first lens group consists of a cemented lens in which a negative lens concave toward the image side and a positive lens convex toward the object side are cemented. The second lens group consists of a cemented lens in which a negative lens concave toward the image side, a positive lens convex toward both sides, and a negative lens concave toward the object side are cemented. The third lens group consists of a cemented lens in which a positive lens convex toward the object side and a negative lens are cemented. The rear converter lens satisfies predetermined Conditional Expressions (1) and (2). | 2021-08-19 |
20210255423 | ZOOM LENS, OPTICAL APPARATUS AND METHOD FOR MANUFACTURING THE ZOOM LENS - A zoom lens (ZL) comprises, in order from an object: a first lens group (G | 2021-08-19 |
20210255424 | Optical Imaging Lens - An optical imaging lens is provided. The optical imaging lens includes sequentially from an object side to an Image side along an optical axis: a first lens with a positive refractive power; a second lens with a negative refractive power; a third lens with a refractive power, an object side surface of the third lens being a convex surface, an image side surface of the third lens being a concave surface;; a fourth lens with refractive power, an object side surface of the fourth lens being a convex surface, an image side surface of the fourth lens being a concave surface a fifth lens with a negative refractive power, an object side surface of the fifth lens being a convex surface, an image side surface of the fifth lens being a concave surface; and a sixth lens with a refractive power. | 2021-08-19 |
20210255425 | OPTICAL IMAGING LENS ASSEMBLY - The present disclosure discloses an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. At least one of the first lens to the seventh lens is a glass lens. The third lens has positive refractive power, and an image-side surface of the third lens is a convex surface. An object-side surface of the seventh lens is a convex surface, and an image-side surface of the seventh lens is a concave surface. A maximum field-of-view FOV of the optical imaging lens assembly satisfies FOV≥134.56°. An effective half-aperture DT | 2021-08-19 |
20210255426 | OPTICAL IMAGING SYSTEM - The present application discloses an optical imaging system, comprising, in order from an object side to an image side along an optical axis: a planar glass, a first lens having a positive focal power, a second lens having a negative focal power and a plurality of subsequent lenses having a respective focal power, wherein the maximum field of view FOV of the optical imaging system satisfies FOV≥40°; and a radius of curvature R3 of an object side surface of the second lens and a radius of curvature R4 of an image side surface of the second lens satisfy −0.52021-08-19 | |
20210255427 | STOP-IN-FRONT OR STOP-NEAR-FRONT LENS ASSEMBLY - A lens assembly includes a plurality of optical elements. A stop of the lens assembly is positioned in front of a second optical element in the plurality of optical elements. | 2021-08-19 |
20210255428 | IMAGING OPTICAL LENS ASSEMBLY, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE - An imaging optical lens assembly includes seven lens elements which are, in order from an object side to an image side along an optical path: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. The third lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The fourth lens element has negative refractive power. The fifth lens element has an object-side surface being concave in a paraxial region thereof. The sixth lens element with negative refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof, and the image-side surface of the sixth lens element has at least one critical point in an off-axis region thereof. | 2021-08-19 |
20210255429 | IMAGING OPTICAL LENS ASSEMBLY, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE - An imaging optical lens assembly includes seven lens elements which are, in order from an object side to an image side along an optical path: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. The third lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The fourth lens element has negative refractive power. The fifth lens element has an object-side surface being concave in a paraxial region thereof. The sixth lens element with negative refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof, and the image-side surface of the sixth lens element has at least one critical point in an off-axis region thereof. | 2021-08-19 |
20210255430 | CAMERA LENS - The present application discloses a camera lens, comprising, in order from an object side to an image side along an optical axis: a first lens having a positive refractive power; a second lens having a positive refractive power, an object side surface thereof being convex; a third lens having a refractive power; a fourth lens having a refractive power, an object side surface thereof being convex; and a fifth lens having a refractive power. An effective focal length f2 of the second lens and an effective focal length f1 of the first lens satisfy: 0.32021-08-19 | |
20210255431 | Optical Imaging Lens - An optical imaging lens is provided. The optical imaging lens includes sequentially from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens. The first lens has a positive refractive power; the fourth lens has a positive refractive power; the fifth lens has a negative refractive power; the seventh lens has a positive refractive power; the eighth lens has a negative refractive power; and a total effective focal length f of the optical imaging lens, an entrance pupil diameter EPD of the optical imaging lens and a distance TTL from the object side surface of the first lens to the imaging surface of the optical imaging lens on the optical axis satisfy 5 mm2021-08-19 | |
20210255432 | Photographic Optical System - The disclosure discloses a photographic optical system, sequentially includes from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens. Wherein the first lens has a positive refractive power, an object-side surface thereof is a convex surface, an image-side surface is a concave surface. The second lens has a negative refractive power, an object-side surface thereof is a convex surface, an image-side surface is a concave surface. The sixth lens has a negative refractive power. TTL is a distance from the object-side surface of the first lens to an imaging surface of the photographic optical system on the optical axis and ImgH is a half the diagonal length of an effective pixel area on the imaging surface of the photographic optical system, and TTL and ImgH satisfy TTL/ImgH<1.5. | 2021-08-19 |
20210255433 | IMAGING LENS - An imaging lens which uses a larger number of constituent lenses for higher performance and features compactness and a wide field of view. The imaging lens is composed of seven lenses to form an image of an object on a solid-state image sensor. The constituent lenses are arranged in the following order from an object side to an image side: a first lens with positive refractive power; a second lens with positive or negative refractive power; a third lens with negative refractive power; a fourth lens with positive or negative refractive power as a double-sided aspheric lens; a meniscus fifth lens having a convex surface on the image side; a sixth lens with positive or negative refractive power as a double-sided aspheric lens; and a seventh lens with negative refractive power, in which an air gap is provided between lenses. | 2021-08-19 |
20210255434 | IMAGING LENS - An imaging lens which uses a larger number of constituent lenses for higher performance and features compactness and a wide field of view. The imaging lens is composed of seven lenses to form an image of an object on a solid-state image sensor. The constituent lenses are arranged in the following order from an object side to an image side: a first lens with positive refractive power; a second lens with positive or negative refractive power; a third lens with negative refractive power; a fourth lens with positive or negative refractive power as a double-sided aspheric lens; a meniscus fifth lens having a convex surface on the image side; a sixth lens with positive or negative refractive power as a double-sided aspheric lens; and a seventh lens with negative refractive power, in which an air gap is provided between lenses. | 2021-08-19 |
20210255435 | IMAGING LENS - An imaging lens which uses a larger number of constituent lenses for higher performance and features compactness and a wide field of view. The imaging lens is composed of seven lenses to form an image of an object on a solid-state image sensor. The constituent lenses are arranged in the following order from an object side to an image side: a first lens with positive refractive power; a second lens with positive or negative refractive power; a third lens with negative refractive power; a fourth lens with positive or negative refractive power as a double-sided aspheric lens; a meniscus fifth lens having a convex surface on the image side; a sixth lens with positive or negative refractive power as a double-sided aspheric lens; and a seventh lens with negative refractive power, in which an air gap is provided between lenses. | 2021-08-19 |