| Entries |
| Document | Title | Date |
|---|
| 20080212185 | Laser Optical Device - In a laser optical device including a beam shaping optical system | 09-04-2008 |
| 20080225390 | Optical microstructure plate and fabrication mold thereof - An optical microstructure plate and mold for fabricating the same is disclosed. The optical microstructure plate comprises a substrate. An optical microstructure element is formed on the substrate. A period alignment mark is disposed on the substrate to provide alignment for fabricating the optical microstructure element by a mold. A universal alignment mark is disposed on the substrate to provide alignment for bonding another plate therewith. Specifically, the mold comprises a concave within a mold substrate, a spoiler around the concave, and a buffer zone adjacent to the spoiler. | 09-18-2008 |
| 20080225391 | Zero-order diffractive filter - A Zero-order diffractive filter comprising a first layer ( | 09-18-2008 |
| 20080273244 | Wide field compact imaging catadioptric spectrometer - An imaging catadioptric spectrometer using a Mangin type lens and pupil lens adjacent to a grating. Electromagnetic radiation received by aperture slits is directed to a reflective portion of a Mangin type lens and redirected to a pupil adjacent a diffraction grating. Diffracted light is transmitted through a refractive portion of the Mangin type lens and through a corrector lens to image the spectral components of electromagnetic radiation onto a detector. The detector may be an enhanced detector utilizing an array of smaller spaced detectors. By balancing the powers of the lens elements, a single optical material may be used. In one embodiment, multiple aperture slits are spaced apart and decentered with respect to the optical axis permitting collection of opposing diffraction orders on two detectors. A wide field of view having a low F number is obtained with an operating wavelength range in the infrared from approximately 7.5 to 13.5 microns. The spectrometer is particularly suited to airborne applications. | 11-06-2008 |
| 20080304155 | OPTICAL ELEMENT, METHOD FOR PRODUCING SAME, REPLICA SUBSTRATE CONFIGURED TO FORM OPTICAL ELEMENT, AND METHOD FOR PRODUCING REPLICA SUBSTRATE - An optical element includes a base and many structures arranged at a fine pitch on a surface of the base, each of the structures being in the form of a projection or a depression, in which the structures constitute a plurality of arc tracks, and the structures in every three adjacent rows of the arc tracks are arranged in a tetragonal lattice pattern or a quasi-tetragonal lattice pattern. | 12-11-2008 |
| 20080310023 | Method of making an optical system - A diffractive optical element (DOE) corrector for use with three different wavelengths includes a first diffractive element on a first surface of a first material, the first diffractive element diffracting a first wavelength of the three wavelengths, while directing a majority of light of second and third wavelengths of the three wavelengths into a zero-th order, and a second diffractive element on a second surface of a second material, the second material being different from the first material, the second surface being different from and in an optical path of the first surface, the second diffractive element diffracting the second wavelength, while directing a majority of light of the first and third wavelengths into a zero-th order. | 12-18-2008 |
| 20090040613 | In-Plane Optical Metrology - A structure that is located adjacent to a measurement target on a substrate is used to convert incident radiation from an optical metrology device to be in-plane with the measurement target. The structure may be, e.g., a grating or photonic crystal, and may include a waveguide between the structure and the measurement target. The in-plane light interacts with the measurement target and is reflected back to the structure, which converts the in-plane light to out-of-plane light that is received by the optical metrology device. The optical metrology device then uses the information from the received light to determine one or more desired parameters of the measurement target. Additional structures may be used to receive light that is transmitted through or scattered by the measurement target if desired. | 02-12-2009 |
| 20090052038 | Apparatus and method for changing optical tweezers - An apparatus and a method for changing optical tweezers are provided. The apparatus includes a diffractive optical element (DOE), a mask unit and an objective lens. The DOE includes a plurality of phase delay patterns. The mask unit includes a plurality of mask patterns that correspond to the phase delay patterns, respectively, wherein at least a portion of the mask patterns are complementary. A laser beam passing through each phase diffractive pattern correspondingly passes through each mask pattern to generate a compound diffractive pattern. The objective lens receives the compound diffractive pattern and focuses it on an examining object to form an optical tweezers. | 02-26-2009 |
| 20090091833 | Method For Producing Defect-Free Light Guiding Elements Of Great Widths, Production Device And Diffractive Light Guiding Element - A process for producing a diffractive light guiding element by a continuous, single-stage reel-to-reel method, an apparatus suitable for carrying out the process and a light guiding element obtainable by the process. | 04-09-2009 |
| 20090097119 | DIFFRACTION MICRO FLOW STRUCTURE AND OPTICAL TWEEZERS USING THE SAME - A diffraction micro flow structure and optical tweezers using the same are provided. The diffraction micro flow structure comprises a substrate and a diffraction part. The substrate comprises at least a flow path. The diffraction part is disposed on the substrate. The diffraction part comprises a diffraction optical element. After light passes through the diffraction optical element, the light is focused in the flow path and forms an optical field. | 04-16-2009 |
| 20090109534 | Multi-Segmented Aiming Diffractive Optical Elements - A system having a light source generating a light beam, a collimating lens collimating the light beam into a collimated light beam and a pattern generating element comprising a diffractive optical element portion and a refractive optical element portion, the pattern generating element creating a target pattern from the collimated light beam incident on the pattern generating element. | 04-30-2009 |
| 20090109535 | Extended Depth Of Field Optical Systems - A system for forming an image includes a lens and a phase mask. The image is characterized by an optical transfer function that has no zeros within detected spatial frequencies of a detector that detects the optical image over a larger depth of focus than without the phase mask. The phase mask does not reduce an optical bandpass limited by an aperture of the lens or of the phase mask. A method for generating an optical image includes forming the image with at least one element of an imaging system while modifying wavefront phase without reducing an optical bandpass limited by an aperture of the imaging system. The method also includes detecting the optical image without introducing zeros in an optical transfer function of the imaging system, over detected spatial frequencies within the optical bandpass over an extended depth of focus. | 04-30-2009 |
| 20090141353 | IMAGE DISPLAY BODY AND IMAGE FORMATION METHOD - An image display body in which a decorative effect is obtained more effectively by an optical diffraction structure. In an image display body, an optical diffraction structure portion constituted by the optical diffraction structure in a halftone dot state is provided in a colored region on a base material. In the image display body, a dot area percent of a halftone dot a constituting the optical diffraction structure portion to the colored region ranges from 15% to 60%, an area of each halftone dot a is smaller than 0.25 mm | 06-04-2009 |
| 20090174943 | ILLUMINATION DEVICE, IMAGE DISPLAY DEVICE, AND PROJECTOR - An illumination device includes: a light source unit that emits coherent light; and a diffractive optical element that diffracts the coherent light emitted from the light source unit and makes the diffracted light travel to an illuminated surface. The diffractive optical element is disposed such that the coherent light is incident in a state of being inclined with respect to a perpendicular line of a reference plane on which the diffractive optical element is disposed. Zero-order light, which is light other than the diffracted light, of light components emitted from the diffractive optical element travels to a position other than the illuminated surface. | 07-09-2009 |
| 20090185274 | OPTICAL DESIGNS FOR ZERO ORDER REDUCTION - Apparatus for projecting a pattern includes a first diffractive optical element (DOE) configured to diffract an input beam so as to generate a first diffraction pattern on a first region of a surface, the first diffraction pattern including a zero order beam. A second DOE is configured to diffract the zero order beam so as to generate a second diffraction pattern on a second region of the surface such that the first and the second regions together at least partially cover the surface. | 07-23-2009 |
| 20090190221 | Miniaturized Optical Tweezer Array - Apparatus for forming a single or a plurality of threedimensional optical traps, the apparatus comprising: a. A collimated light source that is directed onto an array of focalizing refractive or diffractive elements providing a single or a plurality of focal areas, and b. An array of reflective elements, placed opposite to the said focalizing elements described in a), which reflect back the light into the said focal area. The invention also relates to a method for using this apparatus. | 07-30-2009 |
| 20090201585 | OPTICAL SYSTEM AND OPTICAL APPARATUS USING THE SAME - An optical system includes a front lens group, a stop, and a rear lens group arranged successively in order from the object side toward the image side. The front lens group includes a solid material element having a refractive action. The rear lens group includes a diffractive optical element. The solid material element is formed on at least one transmissive surface of a refractive optical element. An Abbe number of a solid material of the solid material element with respect to the d line, a partial dispersion ratio of the solid material with respect to the g line and the F line, respective thicknesses of the solid material element and the refractive optical element when measured on the optical axis, and respective focal lengths of the diffractive optical portion of the diffractive optical element and the solid material element in air satisfy predetermined conditional expressions. | 08-13-2009 |
| 20090268294 | MOLDED PRODUCT AND METHOD FOR MANUFACTURING SAME - A molded product having a phase separation structure formed by photopolymerization of a photopolymerizable composition and imparting a sharp diffraction spot at a high diffraction efficiency, and a method for manufacturing same are provided. The molded product ( | 10-29-2009 |
| 20090310220 | OPTICAL SYSTEM AND EYE PIECE - An eye piece (EL | 12-17-2009 |
| 20100060986 | Optic-purpose precursor composition, optic-purpose resin, optical element, and optical article - The optical element of the present invention has a first member and a second member which have been joined in close contact, and has n | 03-11-2010 |
| 20100182697 | DIFFRACTIVE OPTICAL SYSTEM AND EYEPIECE OPTICAL SYSTEM - A diffractive optical system including a diffractive optical element is provided with a first lens component having a first positive lens, and a second lens component having a second positive lens and a negative lens. The diffractive optical element has a first diffractive optical member having a first diffractive optical surface, and a second diffractive optical member having a second diffractive optical surface. The first diffractive optical member and the second diffractive optical member are arranged so that the first diffractive optical surface and the second diffractive optical surface are in contact with each other. A refractive index of the first diffractive optical member and a refractive index of the second diffractive optical member at the d line are different from each other. | 07-22-2010 |
| 20100202054 | Liquid Lens System - The invention is directed to an optical system ( | 08-12-2010 |
| 20100226011 | Method and Apparatus for Accurate Imaging with an Extended Depth of Field - A method and apparatus involve using optics to direct radiation from a scene along an optical axis, the optics having a chromatic dispersion that is a function of a characteristic spectral signature for the scene so as to produce a chromatic blur that, for an extended depth-of-field region, is substantially spatially constant along the optical axis. A different method involves: identifying for a characteristic scene a spectral response curve; determining a plurality of different wavelength nodes dividing the area under the spectral response curve into a plurality of substantially equal segments; generating a mapping relationship that maps each of the wavelength nodes to a respective one of a plurality of focal points spaced substantially equally along the optical axis; and configuring the optical system as a function of the mapping relationship. | 09-09-2010 |
| 20100238553 | IMAGE DISPLAY BODY AND IMAGE FORMATION METHOD - An image display body in which a decorative effect is obtained more effectively by an optical diffraction structure. In an image display body, an optical diffraction structure portion constituted by the optical diffraction structure in a halftone dot state is provided in a colored region on a base material. In the image display body, a dot area percent of a halftone dot a constituting the optical diffraction structure portion to the colored region ranges from 15% to 60%, an area of each halftone dot is smaller than 0.25 mm | 09-23-2010 |
| 20100254005 | EYEPIECE SYSTEM AND OPTICAL DEVICE - An eyepiece system has a lens group S | 10-07-2010 |
| 20100284082 | OPTICAL PATTERN PROJECTION - Optical apparatus includes first and second diffractive optical elements (DOEs) arranged in series to diffract an input beam of radiation. The first DOE is configured to apply to the input beam a pattern with a specified divergence angle, while the second DOE is configured to split the input beam into a matrix of output beams with a specified fan-out angle. The divergence and fan-out angles are chosen so as to project the radiation onto a region in space in multiple adjacent instances of the pattern. | 11-11-2010 |
| 20100328773 | LASER SYSTEM AND LASER BEAM SHAPING AND HOMOGENIZING DEVICE THEREOF - A double-sided microlens array is applied to a laser beam shaping and homogenizing device of a laser system. The double-sided microlens array is able to shape the energy distribution of an incident laser beam to a square and flat-top beam with the average uniformity of energy and comprises a base plate, a plurality of first micro lenslets and a plurality of second micro lenslets. The first micro lenslet and the second micro lenslet have the convexes with the same figures and comply with the classification of an optical diffractive element, the first micro lenslets and the second micro lenslets are disposed on the first surface and the second surface of the base plate, which are corresponding to each other in order to tightly line up the arrangements of arrays. The first micro lenslets and the second micro lenslets are correspondingly misalignment. | 12-30-2010 |
| 20110026118 | DIFFRACTIVE OPTICAL ELEMENT AND USE OF AN OPTICAL ADHESIVE FOR PRODUCING THE SAME - A diffractive optical element is provided, which comprises a first layer ( | 02-03-2011 |
| 20110043916 | OBJECTIVE FOR OPTICAL IMAGING SYSTEMS - A wide angle hybrid refractive-diffractive endoscope objective is provided. The objective comprises a negative meniscus lens having a first surface and a second surface; a stop adjacent to the negative meniscus lens; a positive lens adjacent to the negative lens and having a first surface and a second surface; and a hybrid refractive-diffractive element adjacent to the positive lens and having a first surface and a second surface, wherein one of the first surface, or the second surface comprises a diffractive surface, wherein the objective has an effective focal length in a range from about 0.8 mm to about 1.6 mm. | 02-24-2011 |
| 20110128626 | DIFFRACTION FIELDS FOR GUIDING AN OBJECT TO A TARGET - An object moving towards a target with a velocity can be accurately estimated and targeted based on keeping the object within a field of diffraction, the object being disturbed by effects caused by noise. | 06-02-2011 |
| 20110134530 | OPTICAL SYSTEM AND OPTICAL APPARATUS INCLUDING THE SAME - An optical system and an optical apparatus capable of properly correcting chromatic aberration over a visible wavelength range are obtained. An optical system includes a diffractive optical element and a refractive optical element on at least one of an object side and an image side of a stop. The following conditions are satisfied: | 06-09-2011 |
| 20110188118 | DIFFRACTIVE ELEMENT WITH A HIGH DEGREE OF WAVEFRONT FLATNESS - The present invention relates to the creation of a diffractive element that has a high degree of wavefront flatness. The diffractive element has a flat functional substrate with a first side, whereby a fine structure is arranged on or in this first side, and whereby the first side of this functional substrate is arranged on a flat carrier substrate, whereby the carrier substrate has a higher degree of rigidity than the functional substrate. | 08-04-2011 |
| 20110194180 | Imaging Method and system for Imaging with Extended depth of Focus - An optical processor is presented for applying optical processing to a light field passing through a predetermined imaging lens unit. The optical processor comprises a pattern in the form of spaced apart regions of different optical properties. The pattern is configured to define a phase coder, and a dispersion profile coder. The phase coder affects profiles of Through Focus Modulation Transfer Function (TFMTF) for different wavelength components of the light field in accordance with a predetermined profile of an extended depth of focusing to be obtained by the imaging lens unit. The dispersion profile coder is configured in accordance with the imaging lens unit and the predetermined profile of the extended depth of focusing to provide a predetermined overlapping between said TFMTF profiles within said predetermined profile of the extended depth of focusing. | 08-11-2011 |
| 20110261458 | METHODS FOR FORMING SIGHTING OPTICS INCLUDING FORMING AN OPTICAL ELEMENT HAVING A PLURALITY OF TRANSPARENT RINGS AND SIGHTING OPTICS FORMED BY SUCH METHODS - Sighting optics include a front sight and a rear sight positioned in a spaced-apart relation. The rear sight includes an optical element having a first focal length and a second focal length. The first focal length is selected so that it is about equal to a distance separating the optical element and the front sight and the second focal length is selected so that it is about equal to a target distance. The optical element thus brings into simultaneous focus for a user images of the front sight and the target. | 10-27-2011 |
| 20110292511 | Diffractive Optical Elements - A method of producing a diffractive optical element comprises forming on a textured surface of a first substrate ( | 12-01-2011 |
| 20110299164 | METHOD AND DEVICE FOR THE PRODUCTION OF A STRUCTURED OBJECT, AND STRUCTURED OBJECT - The invention relates to a method for the production of a structured object, particularly an optical clement having a structure on an optically effective non-planar surface, preferably for structuring a non-planar surface of an object, and to objects produced according to the method. which comprises providing a base body, particularly having at least one non-planar surface, producing a structure, particularly on the at least one non-planar surface of the object, which comprises structuring a sacrificial layer, transferring the structure from the sacrificial layer onto a surface, wherein the surface is a surface of the base body, particularly a non-planar surface of the base body, or a surface on at least one further body which can be attached to the base body, wherein the thickness of the sacrificial layer can be at least reduced or changed during the transferring of the structure of the sacrificial layer onto the surface, thus structuring the surface. | 12-08-2011 |
| 20120002284 | OPTICAL BEAM SPLITTER FOR USE IN AN OPTOELECTRONIC MODULE, AND A METHOD FOR PERFORMING OPTICAL BEAM SPLITTING IN AN OPTOELECTRONIC MODULE - An optical beam splitter for use in an optoelectronic module and method are provided. The optical beam splitter is configured to split a main beam produced by a laser into at least first and second light portions that have different optical power levels. The first light portion, which is to be coupled into an end of a transmit optical fiber of an optical communications link, has an optical power level that is within eye safety limits and yet has sufficient optical power to avoid signal degradation problems. The optical power level of the first light portion is less than the optical power level of the second light portion. The optical beam splitter is capable of being implemented in a unidirectional or a bidirectional optical link. | 01-05-2012 |
| 20120057235 | Method for Antireflection in Binary and Multi-Level Diffractive Elements - Methods and apparatus for reducing or eliminating reflection at the interface between a binary or multi-level diffractive element and a surrounding medium. A non-planar diffractive surface of a diffractive optical element is coated forming a plurality of nanostructures on the non-planar diffractive surface and, in certain embodiments, on a planar surface as well. The nanostructures are chosen for providing adiabatic refractive index matching at the optical interface between the non-planar diffractive surface and a surrounding medium subject to matching tangential fields at surface discontinuities. | 03-08-2012 |
| 20120099203 | OPTICAL DEVICE AND METHOD FOR CORRECTING CHROMATIC ABERRATIONS - Imaging device and method, the device including receiver optics, a diffractive and focusing surface, and a pair of diffractive and focusing arrangements, the receiver optics receiving radiation including a first wavelength selected from a first spectral band, and a second spectral band, where the first wavelength is substantially a multiplicative factor less than the midpoint of the second spectral band, the diffractive and focusing surface diffracting the first wavelength at an order of diffraction substantially equal to the multiplicative factor, and diffracting the second spectral band at a first order of diffraction, each of the diffractive and focusing arrangements diffracting, in turn, the first wavelength at a first order of diffraction, such that the first wavelength and the second spectral band emanating from the second diffractive and focusing arrangement focuses at a substantially common focal length and at a substantially common focal plane width. | 04-26-2012 |
| 20120162769 | IMAGING LENS - An imaging lens with large aperture ratio, high-performance and low-cost is provided, which is applied to an imaging element of a small-size and high resolution, in which aberration is corrected satisfactorily and sufficient diffraction resolution is achieved. An imaging lens includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens arranged in sequence from an object side, wherein both surfaces of each lens are formed from aspheric surface, a diffraction optics surface exerting chromatic dispersion function is arranged on a surface on an image side of the second lens, each lens is configured from plastic material, and an aperture ratio is equal to or smaller than F/2.4. | 06-28-2012 |
| 20120188645 | Optical System for Shaping a Laser Beam and Laser System Having Such an Optical System - An optical system for shaping a laser beam is disclosed. The optical system includes an optical element with a base member having a lower base, an upper base, and a lateral surface. The lateral surface includes a transmitting surface for the laser beam, and the base member includes a first cutout portion having a lower base arranged in the upper base of the base member, and a lateral surface that has a first reflecting surface for the laser beam and generates an at least segmentally ring-shaped laser beam. The base member includes a second cutout portion having a lower base arranged in the lower base of the base member, an upper base that includes a transmitting surface for the laser beam, and a lateral surface abutting the lower and upper base. The lateral surface includes a second reflecting surface for the at least segmentally ring-shaped laser beam. | 07-26-2012 |
| 20120212818 | DIFFRACTIVE OPTICAL ELEMENT AND IMAGING APPARATUS USING THE SAME - A diffractive optical element includes a diffractive surface. Raised portions and recessed portions are alternately arranged on the diffractive surface. The valley bottoms of the recessed portions are formed to have a chamfered shape. | 08-23-2012 |
| 20120212819 | DIFFRACTIVE OPTICAL ELEMENT AND IMAGING APPARATUS USING THE SAME - A diffractive optical element includes a diffractive surface. Raised portions and recessed portions are alternately arranged on the diffractive surface. A shape of the valley bottoms of the recessed portions varies according to regions of the diffractive surface. | 08-23-2012 |
| 20120262787 | PIXELATED, DIFFRACTIVE OPTICAL ELEMENT HAVING TWO HEIGHT STEPS FOR THE PRODUCTION OF A PHASE DISTRIBUTION WITH AN ARBITRARY PHASE DEVIATION - A diffractive optical element generates a phase distribution with an arbitrary quasi-continuous phase deviation. The diffractive optical element includes a plurality of pixels configured to generate an adjustable phase deviation. Each pixel has a base face, and the plurality of pixels being disposed adjacent each other with their base faces in an element plane of the diffractive optical element. One or more pixels of the plurality of pixels includes a height profile formed by a first face and a second face of the one or more pixels. A distance between the first face and second face defining a height step that is tuned to an adjustable maximum phase deviation of the diffractive optical element. | 10-18-2012 |
| 20120320460 | COLOR DISTRIBUTION IN EXIT PUPIL EXPANDERS - The specification and drawings present a new apparatus and method for providing color separation in an exit pupil expander system that uses a plurality of diffractive elements for expanding the exit pupil of a display in an electronic device for viewing by introducing a selectively absorbing area or areas in the exit pupil expander. | 12-20-2012 |
| 20130010362 | DIFFRACTIVE OPTICAL ELEMENT AND IMAGING APPARATUS USING THE SAME - A diffractive optical element includes a first optical member, a second optical member, and a third optical member stacked on each other in this order in an optical axis direction. A diffractive surface including a plurality of raised parts is formed at an interface between the first and second optical members. The first and third optical members contact each other at part other than the raised parts. | 01-10-2013 |
| 20130010363 | Spectral Purity Filters for Use in a Lithographic Apparatus - According to an aspect of the present invention, a spectral purity filter includes an aperture, the aperture being arranged to diffract a first wavelength of radiation and to allow at least a portion of a second wavelength of radiation to be transmitted through the aperture, the second wavelength of radiation being shorter than the first wavelength of radiation, wherein the aperture has a diameter greater than 20 μm. | 01-10-2013 |
| 20130044375 | Security Device With A Zero-Order Diffractive Microstructure - A security Device comprises a zero order diffractive microstructure ( | 02-21-2013 |
| 20130077169 | HOLLOW PARTICLE CRYSTALLINE COLLOIDAL ARRAYS - The invention includes a radiation diffracting member having a crystalline structure comprising an ordered periodic array of hollow particles. The radiation diffracting member also includes a matrix material in which the array of particles is received. | 03-28-2013 |
| 20130083397 | OPTICAL ELEMENTS, METHOD OF REPLICATING OPTICAL ELEMENTS, PARTICULARLY ON A WAFER LEVEL, AND OPTICAL DEVICES - Integrated multiple optical elements may be formed by bonding substrates containing such optical elements together or by providing optical elements on either side of the wafer substrate. The wafer is subsequently diced to obtain the individual units themselves. The optical elements may be formed lithographically, directly, or using a lithographically generated master to emboss the elements. Alignment features facilitate the efficient production of such integrated multiple optical elements, as well as post creation processing thereof on the wafer level. | 04-04-2013 |
| 20130120841 | Optical pattern projection - Optical apparatus includes first and second diffractive optical elements (DOEs) arranged in series to diffract an input beam of radiation. The first DOE is configured to apply to the input beam a pattern with a specified divergence angle, while the second DOE is configured to split the input beam into a matrix of output beams with a specified fan-out angle. The divergence and fan-out angles are chosen so as to project the radiation onto a region in space in multiple adjacent instances of the pattern. | 05-16-2013 |
| 20130135739 | MICROSCOPE OBJECTIVE LENS - Provided is a microscope objective lens that sufficiently corrects on-axis and off-axis chromatic aberrations and that has a long working distance. A microscope objective lens OL includes, in order from an object side, a first lens group G | 05-30-2013 |
| 20130148202 | MICROSCOPE OBJECTIVE LENS - A microscope objective lens includes, in order from an object side, a first lens group having positive refractive power, a second lens group having positive refractive power, and a third lens group having negative refractive power, and is configured such that the first lens group includes, on the most object side, a positive meniscus lens whose concave surface is directed to the object side, such that the second lens group includes a diffractive optical element having positive refractive power, and such that the diffractive optical element is arranged at a position closer to the image than a portion at which the diameter of a light flux passing through the first lens group and the second lens group is the largest. | 06-13-2013 |
| 20130155512 | OPTICAL PROCESSING DEVICE EMPLOYING A DIGITAL MICROMIRROR DEVICE (DMD) AND HAVING REDUCED WAVELENGTH DEPENDENT LOSS - An optical arrangement includes an actuatable optical element and a compensating optical element. The actuatable optical element is provided to receive an optical beam having a plurality of spatially separated wavelength components and diffract the plurality of wavelength components in a wavelength dependent manner. The compensating optical element directs the optical beam to the actuatable optical element. The compensating optical element compensates for the wavelength dependent manner in which the wavelength components are diffracted by the actuatable optical element. | 06-20-2013 |
| 20130194667 | Optical System for Rigid Scope and Rigid Endoscope - By suitably correcting a secondary spectrum, a clear, bright optical image is obtained. Provided is a rigid-scope optical system including: an objective optical system; and at least one relay optical systems that are formed of positive front groups, middle groups, and back groups in this order from an entrance side and that reimage an optical image imaged at imaging planes at the entrance side onto imaging planes at an exit side, wherein axial chromatic aberration between two wavelengths is corrected by an optical system other than the diffractive optical element, and axial chromatic aberration between the two wavelengths and another wavelength is corrected by the diffractive optical element. | 08-01-2013 |
| 20130301131 | Security Device With a Zero-Order Diffractive Microstructure - A security Device comprises a zero order diffractive microstructure ( | 11-14-2013 |
| 20140029102 | Imaging Method and System with Optimized Extended Depth of Focus - An optical processor is presented for applying optical processing to a light field passing through a predetermined imaging lens unit. The optical processor comprises a pattern in the form of spaced apart regions of different optical properties. The pattern is configured to define a phase coder, and a dispersion profile coder. The phase coder affects profiles of Through Focus Modulation Transfer Function (TFMTF) for different wavelength components of the light field in accordance with a predetermined profile of an extended depth of focusing to be obtained by the imaging lens unit. The dispersion profile coder is configured in accordance with the imaging lens unit and the predetermined profile of the extended depth of focusing to provide a predetermined overlapping between said TFMTF profiles within said predetermined profile of the extended depth of focusing. | 01-30-2014 |
| 20140204462 | ZOOM OPTICAL SYSTEM AND IMAGING DEVICE HAVING THE SAME - A zoom optical system has, in order from an object: a first lens group G1 having positive refractive power; a second lens group G2 having negative refractive power; a third lens group G3 having positive refractive power; and a fourth lens group G4 having negative refractive power, wherein the mutual distance between the lens groups G1 to G4 change upon zooming, and one of the third lens group G3 and the fourth lens group G4 includes at least one diffractive optical element PF. | 07-24-2014 |
| 20140268341 | PLANAR DIFFRACTIVE OPTICAL ELEMENT LENS AND METHOD FOR PRODUCING SAME - A planar diffractive optical element (DOE) lens is described herein. The planar DOE lens includes a substrate. The planar DOE lens further includes a first layer, the first layer being formed upon the substrate. The planar DOE lens further includes a diffractive optical element, the diffractive optical element being formed upon the first layer. The planar DOE lens further includes a second layer, the second layer being formed upon the first layer. The second layer is also formed over the diffractive optical element. The second layer encloses the diffractive optical element between the first layer and the second layer. The second layer includes a planar surface. | 09-18-2014 |
| 20140293422 | DIFFRACTIVE OPTICAL ELEMENT, DESIGN METHOD THEREOF AND APPLICATION THEREOF TO SOLAR CELL - Disclosed are a diffractive optical element, a design method thereof and the application thereof in a solar cell. The design method for a design modulation thickness of a sampling point of the diffractive optical element comprises: calculating the modulation thickness of the current sampling point for each wavelength component; obtaining a series of alternative modulation thicknesses which are mutually equivalent for each modulation thickness, wherein a difference between the corresponding modulation phases is an integral multiple of 2π; and selecting one modulation thickness from the alternative modulation thicknesses of each wavelength to determine the design modulation thickness of the current sampling point. In an embodiment, the design method introduces a thickness optimization algorithm into a Yang-Gu algorithm. The design method breaks through limitations to the modulation thicknesses/modulation phases in the prior art and increases the diffraction efficiency, and the obtained diffractive optical element facilitates mass production by a modern photolithographic technique, which greatly reduces the cost. The diffractive optical element may also be applied to the solar cell, which provides an efficient and low-cost way for solar energy utilization. | 10-02-2014 |
| 20140293423 | DIFFRACTIVE DEVICE - A method and apparatus for viewing or authenticating a diffractive device and a diffractive security device ( | 10-02-2014 |
| 20140300966 | CONTROLLABLE WAVEGUIDE FOR NEAR-EYE DISPLAY APPLICATIONS - A near-eye display includes an image generator that generates angularly related beams over a range of angles for forming a virtual image and a waveguide that propagates the angularly related beams over a limited range of angles. An input aperture of the waveguide includes a plurality of controllable components that are selectively operable as diffractive optics for injecting subsets of the angularly related beams into the waveguide. An output aperture of the waveguide includes a plurality of controllable components that selectively operable as diffractive optics for ejecting corresponding subsets of the angularly related beams out of the waveguide toward an eyebox. A controller synchronizes operation of the controllable components of the output aperture with the propagation of different subsets of angularly related beams along the waveguide for ejecting the subsets of angularly related beams out of the waveguide for presenting the virtual image within the eyebox. | 10-09-2014 |
| 20140347732 | DIFFRACTIVE OPTICS ELEMENT, METHOD FOR MANUFACTURING DIFFRACTIVE OPTICS ELEMENT, AND ELECTRONIC DEVICE - A diffractive optics element includes a substrate configured of a sapphire substrate and a diffractive optics structure, provided on the substrate, that forms an image when a laser beam is incident thereon. The diffractive optics structure has a diffractive optics portion, and the diffractive optics portion has a base material and a diffractive optics layer disposed on the base material. The thickness of the base material is no greater than 20 μm. | 11-27-2014 |
| 20150036216 | METHOD FOR OPTIMIZING AN INTENSITY OF A USEFUL LIGHT DISTRIBUTION - A method for optimizing an intensity of a useful light distribution includes: providing a light source for emitting a light beam in a z-direction, which defines an optical axis, with a first intensity distribution; providing a beam shaping optical unit and a beam focusing optical unit for generating a second intensity distribution to be used in a target plane, the target plane being inclined by an angle ALPHA relative to a focal plane determined by the beam focusing optical unit; determining a first intensity at a first point and a second intensity at a second point of the second intensity distribution to be used. The points P | 02-05-2015 |
| 20150070766 | IMAGING METHOD AND SYSTEM WITH OPTIMIZED EXTENDED DEPTH OF FOCUS - An optical processor is presented for applying optical processing to a light field passing through a predetermined imaging lens unit. The optical processor comprises a pattern in the form of spaced apart regions of different optical properties. The pattern is configured to define a phase coder, and a dispersion profile coder. The phase coder affects profiles of Through Focus Modulation Transfer Function (TFMTF) for different wavelength components of the light field in accordance with a predetermined profile of an extended depth of focusing to be obtained by the imaging lens unit. The dispersion profile coder is configured in accordance with the imaging lens unit and the predetermined profile of the extended depth of focusing to provide a predetermined overlapping between said TFMTF profiles within said predetermined profile of the extended depth of focusing. | 03-12-2015 |
| 20150098131 | LENS ASSEMBLIES AND OPTICAL SYSTEMS INCORPORATING LENS ASSEMBLIES - An optical system includes a lens assembly and a light source. The lens assembly includes an optical lens positioned to transmit and refract light provided by the light source, and a lens holder coupled to the optical lens and maintaining a position of the optical lens relative to the light source. The optical lens is coupled to the lens holder with a bonding agent arranged in an interrupted configuration at positions proximate to a circumference of the optical lens. The light source provides light to the optical lens of the lens assembly. The light provided to the optical lens has an optical footprint that includes a plurality of high-intensity regions separated from one another by low-intensity regions and the bonding agent is positioned in a circumferential orientation relative to the light source such that the bonding agent is spaced apart from the high-intensity regions of the optical footprint of the light. | 04-09-2015 |
| 20150116829 | ZOOM LENS AND IMAGING DEVICE USING ZOOM LENS - A zoom lens includes, in order from an object side to an image surface side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a negative refractive power, and a fourth lens group having a positive refractive power, the second lens group and the third lens group are moved such that the second lens group is located on a most object side at a wide-angle end and the third lens group is located on a most image surface side at a telephoto end during zooming. | 04-30-2015 |
| 20150316764 | VIRTUAL IMAGE PHASE ARRAY - A virtual image phase array (VIPA) includes two parallel surfaces, a first highly-reflective surface with a highly-reflective coating, and a second partially-reflective surface. The first highly-reflective surface also requires an input zone with an anti-reflection coating, which abuts the highly-reflective coating, with a transition zone therebetween. Light enters the VIPA through the input zone, and reflects back and forth between the highly and partially reflective surfaces, gradually leaking out through the partially reflective surface. To minimize the transition zone and thereby minimize the input angle of incidence and maximize the number of reflections per unit of length, the substrate coated with the highly-reflective coating is subsequently polished at an acute angle resulting in the transition zone having the same sharp angle. | 11-05-2015 |
| 20150323799 | LIGHT BEAM FORMATTER AND METHOD FOR FORMATTING A LIGHT BEAM - The light beam formatter for formatting a light beam having a first mode field diameter and a first intensity profile having a non-uniformly distributed energy density, the light beam formatter generally has a housing having an optical path for the light beam; first and second optical elements mounted to the housing and optically coupled to the optical path and spaced from each other by a distance along the optical path, the first optical element and the second optical element being adapted to format the first mode field diameter of the light beam to a second mode field diameter, and a beam uniformizing element mounted to the housing and optically coupled to the optical path between the first optical element and the second optical element, the beam uniformizing element being adapted to uniformize the first intensity profile of the light beam into a second intensity profile. | 11-12-2015 |
| 20150338663 | BEAM TRANSFORMING OPTICAL SYSTEM, ILLUMINATION OPTICAL APPARATUS, EXPOSURE APPARATUS, AND EXPOSURE METHOD WITH OPTICAL MEMBER WITH OPTICAL ROTATORY POWER HAVING DIFFERENT THICKNESS TO ROTATE LINEAR POLARIZATION DIRECTION - An illumination optical apparatus illuminates a pattern on a mask with illumination light. The illumination optical apparatus includes an optical integrator arranged in an optical path of the illumination light, and a polarization member made of optical material with optical rotatory power, which is arranged in the optical path on an incidence side of the optical integrator, and which changes a polarization state of the illumination light. The illumination light from the polarization member is irradiated onto the pattern through a pupil plane of the illumination optical apparatus. | 11-26-2015 |
| 20150371434 | CODED LIGHT PATTERN HAVING HERMITIAN SYMMETRY - A method includes identifying one or more codewords of a bit sequence that fail to satisfy at least one codeword constraint. The method also includes removing the one or more codewords from the bit sequence to generate a punctured bit sequence. The method includes, in response to determining that the punctured bit sequence is symmetric, generating a hermitian symmetric codebook primitive based at least in part on the punctured bit sequence, where the hermitian symmetric codebook primitive is useable to form a diffractive optical element (DOE) of a structured light depth sensing system. | 12-24-2015 |
| 20160033695 | BROADBAND OPTICS FOR MANIPULATING LIGHT BEAMS AND IMAGES - The objective of the present invention is providing optical systems for controlling with propagation of light beams in lateral and angular space, and through optical apertures. Said light beams include laser beams as well as beams with wide spectrum of wavelengths and large divergence angles. Said optical systems are based on combination of diffractive waveplates with diffractive properties that can be controlled with the aid of external stimuli such as electrical fields, temperature, optical beams and mechanical means. | 02-04-2016 |
| 20160124240 | SURFACE MOUNT DEVICE TYPE LASER MODULE - A surface mount device type laser module includes a housing, a vertical-cavity surface-emitting laser diode, a diffractive optical element and a base. The base is accommodated within the housing, and the vertical-cavity surface-emitting laser diode is integrated into the base. The base includes at least one surface transmission structure. The at least one surface transmission structure is exposed outside the base and the housing. An electronic signal is transmitted through the at least one surface transmission structure. Since the laser module is equipped with the diffractive optical element, the laser diffraction projection efficacy is achieved. | 05-05-2016 |
| 20160139424 | IMAGING METHOD AND SYSTEM WITH OPTIMIZED EXTENDED DEPTH OF FOCUS - An optical processor is presented for applying optical processing to a light field passing through a predetermined imaging lens unit. The optical processor comprises a pattern in the form of spaced apart regions of different optical properties. The pattern is configured to define a phase coder, and a dispersion profile coder. The phase coder affects profiles of Through Focus Modulation Transfer Function (TFMTF) for different wavelength components of the light field in accordance with a predetermined profile of an extended depth of focusing to be obtained by the imaging lens unit. The dispersion profile coder is configured in accordance with the imaging lens unit and the predetermined profile of the extended depth of focusing to provide a predetermined overlapping between said TFMTF profiles within said predetermined profile of the extended depth of focusing. | 05-19-2016 |
| 20160154202 | OPTICAL STRUCTURE WITH RIDGES ARRANGED AT THE SAME AND METHOD FOR PRODUCING THE SAME | 06-02-2016 |
| 20160154203 | OPTICAL STRUCTURE WITH RIDGES ARRANGED AT THE SAME AND METHOD FOR PRODUCING THE SAME | 06-02-2016 |
| 20170232779 | ANTI-COUNTERFEITING PROTECTION AND PRODUCT AUTHENTICATION | 08-17-2017 |
| 20170234679 | Structured Light Sensing for 3D Sensing | 08-17-2017 |
