Patent application number | Description | Published |
20120318041 | METHOD AND APPARATUS FOR MEASURING GAS CONCENTRATIONS - Some embodiments are directed to a photoacoustic sensor. The photoacoustic sensor may comprise: a gas cell with an opening; a light source to generate to radiate a sample gas within the gas cell; an optical microphone to detect the sample gas within the gas cell; and a membrane aligned with the opening of the gas cell to permit sample gas to enter the gas cell. The optical microphone includes a semiconducting laser. The semiconducting laser includes a p-n junction within a cavity of the semiconducting laser. The optical microphone further includes a pressure-sensitive membrane that receives coherent light emitted from the semiconducting laser and directs reflected light back toward the semiconducting laser. During operation of the optical microphone, the pressure-sensitive membrane flexes in response to acoustic pressure waves. The phase of the reflected light is dependent upon a distance of the pressure-sensitive membrane from an aperture of the semiconducting laser. | 12-20-2012 |
20120321322 | OPTICAL MICROPHONE - Some embodiments relate to an optical microphone according to an example embodiment. The optical microphone includes a semiconducting laser. The semiconducting laser includes a p-n junction within a cavity. The optical microphone further includes an acoustic membrane that receives coherent light emitted from the semiconducting laser and directs reflected light back toward the semiconducting laser. During operation of the optical microphone, the acoustic membrane flexes in response to pressure waves. The phase of the reflected light is dependent upon a distance of the acoustic membrane from the semiconducting laser. | 12-20-2012 |
20130027700 | TUNED DYNAMIC EIGEN SPECTROSCOPY SYSTEMS - An apparatus for detecting gas concentrations includes a coded filter to oscillate proximate a resonant frequency. A photo detector is positioned below the coded filter such that the coded filter selectively blocks light that is directed at the photo detector. Optics are positioned to project spectral information on to the coded filter. A processor analyzes a signal received from the photo detector. The processor is adapted to weight a harmonic attic signal. | 01-31-2013 |
20130239658 | PHOTOACOUSTIC SENSOR WITH MIRROR - A photoacoustic sensing device includes a laser tuned to emit light to cause optical absorption by a gas to be detected, a resonant acoustic sensor positioned to receive pressure waves from the gas, wherein the laser is modulated to match a resonant frequency of the resonant acoustic sensor, and a first mirror positioned to receive light from the laser after the light has passed through the gas and to reflect the received light back through the gas to cause additional optical absorption. | 09-19-2013 |
20140061317 | PIEZO-BASED SWITCH FOR ACTIVE CARDS - An active card, such as a smart credit or debit card, includes a substrate, a piezoelectric film sensor embedded in the substrate, and an active card module embedded in the substrate and coupled to the piezoelectric film sensor. The piezoelectric film sensor receives an input stimulation and outputs a voltage in response to the input stimulation. The active card module receives the voltage generated by the piezoelectric film sensor and executes a function. | 03-06-2014 |
20150125008 | FREQUENCY DEPENDENT SWITCH - Generally disclosed herein are transducers that can convert sound energy into electrical signals, such as to detect if a pressure wave includes a specific frequency. Methods of using the transducers and systems that include the transducers are disclosed herein as well. A transducer can include a first probe plate, a second probe plate, a ground plate situated between the first and second probe plates, a first electret film adjacent to a first side of the ground plate and situated between the first and second probe plates, and a second electret film adjacent to a second side of the ground plate and situated between the first and second probe plates, the second side opposite the first side. | 05-07-2015 |
Patent application number | Description | Published |
20090191415 | SAFE TEMPERATURE CONNECTION FOR COMPONENTS - A connection made between components at a safe temperature for each of the components. A slot made may be provided on one component and a tab provided on the other component. The slot may be filled with an electrically conductive material. The tab may be inserted in the slot before significant curing of the material and kept in the slot throughout the curing period of the material. The curing may be effected at a temperature harmless to the components. For example, the temperature may be room temperature. One example of a temperature-sensitive component may be a thin battery. | 07-30-2009 |
20130063132 | LINEAR POSITION SENSOR - In general, the disclosure is directed to techniques for determining the position of a piston within a linear actuator, such as a hydraulic cylinder, in a more cost effective and less labor-intensive fashion compared to current techniques for determining the position of a piston within a linear actuator. One or more magnets may be operably coupled to the piston, and a linear array of sensors may be disposed along an exterior length of the linear actuator. The sensors may measure the magnetic field generated by the magnet and, based on the measured magnetic field, may determine the location of the piston within the linear actuator. | 03-14-2013 |
20150053465 | THIN FLEXIBLE CIRCUITS - An approach for making thin flexible circuits. A layer of dielectric may have one or two surfaces coated with metal. The dielectric and the metal may each have a sub-mil thickness. The dielectric may be held in a fixture for fabrication like that of integrated circuits. The metal may be patterned and have components attached. More layers of dielectric and patterned metal may be added to the flexible circuit. Also bond pads and connecting vias may be fabricated in the flexible circuit. The flexible circuit may be cut into a plurality of smaller flexible circuits. | 02-26-2015 |
Patent application number | Description | Published |
20090072146 | Correlated ghost imager - A method and system for detecting concealed weapons and explosives by imaging THz scenes using conventional optics and detectors is provided. Photon fields with two different wavelengths can be sent through a chopper and towards a wavelength-selective mirror. A light beam with a wavelength in the visible or IR range is sent toward a visible photon array detector. Similarly, light beams with wavelengths in the THz range can be sent towards a target, which are reflected and/or absorbed by objects in the target. The reflected or transmitted light continues on through an optional filter to remove background light, then into a non-imaging detector. The visible photon array detector can be coupled with the non-imaging detector, which will register an image of the scene that is illuminated by the THz photons. | 03-19-2009 |
20090206678 | CIRCUIT HAVING A MICRO CRUSH CAPACITOR - A start-up circuit having a micro crush capacitor that is operatable with a small pressure. The crush capacitor may be connected to a silicon controlled rectifier or similar device. Applying the pressure to the crush capacitor may turn on the SCR which may in turn activate a sensor. The circuit may be fabricated on a flexible substrate which together may be regarded as a flexible circuit. The flexible circuit may be held down on a back plate with a form plate clamping the circuit at its perimeter edge. The flexible circuit may be held firm with the plates for component insertion and/or circuit testing. | 08-20-2009 |
20100033256 | COLD ATOM MICRO PRIMARY STANDARD - An atomic clock having a physics package that includes a vacuum chamber cavity that holds atoms of Rb-87 under high vacuum conditions, an optical bench having a single laser light source, a local oscillator, a plurality of magnetic field coils, an antenna, at least one photo-detector and integrated control electronics. The single laser light source has a fold-retro-reflected design to create three retro-reflected optical beams that cross at 90° angles relative to one another in the vacuum chamber cavity. This design allows the single laser light source to make the required six trapping beams needed to trap and cool the atoms of Rb-87. The foregoing design makes possible atomic clocks having reduced size and power consumption and capable of maintaining an ultra-high vacuum without active pumping. | 02-11-2010 |
Patent application number | Description | Published |
20090022966 | CONTROL ELEMENT - A control element is provided, in particular for a motor vehicle, including a material through which light can be passed and whish is provided with at least one opaque coating provided with symbols, and having a transparent enamel layer on the coating, wherein nanoparticles are introduced into the enamel layer and the coating and the enamel layer are removed by means of a laser. | 01-22-2009 |
20090286072 | CONTROL ELEMENT WITH A METALLIC COATING FOR A MOTOR VEHICLE - A control element is provided that includes a plastic base body and a coating that is applied to the entire surface of the plastic base body facing the control element and that can be transilluminated. The coating, which can be a metallic coating, can be applied by a PVD method and can be applied directly and uniformly to the plastic base body and can have a layer thickness of between 5 nm and 100 nm. | 11-19-2009 |
20120145523 | DISPLAY AND/OR CONTROL ELEMENT IN A MOTOR VEHICLE - The invention relates to a cap ( | 06-14-2012 |
20120315402 | CONTROL ELEMENT - A control element is provided, in particular for a motor vehicle, including a material through which light can be passed and whish is provided with at least one opaque coating provided with symbols, and having a transparent enamel layer on the coating, wherein nanoparticles are introduced into the enamel layer and the coating and the enamel layer are removed by means of a laser. | 12-13-2012 |
Patent application number | Description | Published |
20110196317 | IMPLANTATION INSTRUMENTS, SYSTEM, AND KIT FOR PUNCTAL IMPLANTS - Described and illustrated are various insertion instruments, cap, plug, method and kit. In one aspect, a cap for a punctal insertion instrument is shown and described. In a further aspect, a punctum plug insertion system that includes the instrument and the cap is provided. In yet a further aspect, a method of releasing a punctum plug from a plug holder is provided. Additionally, a kit that contains the plug insertion instrument, cap, plugs, and instructions for use is provided. | 08-11-2011 |
20110311607 | PUNCTAL PLUGS WITH CONTINUOUS OR PULSATILE DRUG RELEASE MECHANISM - Disclosed are lacrimal inserts and their method of use for delivery of medication to the eye. The plug includes a body portion sized to pass through a lacrimal punctum and be positioned within a lacrimal canaliculus of the eyelid. The plug may contain a core, or reservoir, at least partially within the body portion comprising a therapeutic agent that is configured to controlled release into the eye. | 12-22-2011 |
20120059338 | PUNCTAL PLUG CONTAINING DRUG FORMULATION - Disclosed are lacrimal inserts and their method of use for delivery of medication to the eye. The plug includes a body portion sized to pass through a lacrimal punctum and be positioned within a lacrimal canaliculus of the eyelid. The plug may contain a core, or reservoir, at least partially within the body portion comprising a therapeutic agent that is configured to controlled release into the eye and is configured for release medication via a designated port, valve, or orifice in the insert housing and inhibits diffusion of medication via the housing itself. | 03-08-2012 |
20120157938 | PUNCTAL PLUG WITH DRUG CORE RETENTION FEATURES - Disclosed are lacrimal inserts and their method of use for delivery of of medication to the eye. The plug includes a body portion sized to pass through a lacrimal punctum and be positioned within a lacrimal canaliculus of the eyelid. The plug may contain a core, or reservoir, at least partially within the body portion comprising a therapeutic agent that is configured to controlled release into the eye and is configured to release medication via a designated port, valve, or orifice in the insert housing and inhibits diffusion of medication via the housing itself The core may include retention features to ensure that it remains securely located within the lacrimal insert over its usable life. | 06-21-2012 |
20120283669 | PUNCTAL PLUGS FOR CONTROLLED RELEASE OF THERAPEUTIC AGENTS - Lacrimal inserts such as punctal plugs may be utilized for delivery of medication to the eye. The plug includes a body portion sized to pass through a lacrimal punctum and be positioned within a lacrimal canaliculus of the eyelid. The plug may contain a core, or reservoir, at least partially within the body portion comprising a therapeutic agent that is configured for controlled, pulsatile release into the eye. | 11-08-2012 |
20130090611 | PUNCTAL PLUGS - Punctal plugs for delivering therapeutic agents have a body, a portion into which the therapeutic agent is held, a winding about the body, and an enlarged portion or anchor at an end. | 04-11-2013 |
20130123718 | PUNCTAL PLUGS - Punctal plugs for delivering therapeutic agents have a body, a portion into which the therapeutic agent is held, a winding about the body, and an enlarged portion or anchor at an end. | 05-16-2013 |
20130131612 | PUNCTAL PLUGS - Punctal plugs for delivering therapeutic agents have a body, a portion into which the therapeutic agent is held, a winding about the body, and an enlarged portion or anchor at an end. | 05-23-2013 |
20130134633 | INJECTION MOLDING DEVICE AND METHOD - A micro silicone mold mounted plunger injection system comprises a silicone cartridge assembly, a micro plunger injection assembly and a cold deck nozzle assembly. In this system, these three components are interconnected directly such that it has a greatly reduced material flow path length and diameter. The system is capable of displacing an amount of material in a single shot substantially equal to the desired shot weight required to make a component. | 05-30-2013 |
20130175732 | DEVICE AND METHOD FOR INJECTION MOLDING SILICONE RUBBER - A precision cassette plate, which is an integral component of a mold assembly in an injection molding system, is designed to secure a predetermined number of components fabricated in an injection molding process. The precision cassette plate is designed with two pre-alignment holes and two precision position anti-rotational features that guarantee accurate placement of the precision cassette plate each time at each stage of the manufacturing/assembly process. | 07-11-2013 |
20130220346 | BALLOON PUNCTAL PLUG - A lacrimal insert such as a punctal plug may incorporate a balloon or other similar structure to facilitate anchoring of the punctal plug within the lacrimal canaliculus. The balloon may be inflated once it is positioned and deflated if removal is required or desired. The balloon may be affixed to an external portion of the punctal plug or incorporated into a chamber within the punctal plug. | 08-29-2013 |
20150062528 | OPHTHALMIC LENS INCLUDING ULTRA-THIN OPTICAL PARTS - The present invention provides for an optical assembly using two ultra-thin optical pieces/parts defining the outer bound of the assembly with a solid or liquid core and methods of forming said assembly. In particular, the present in invention discloses the handling and arrangements of said ultra-thin optical pieces to prevent deformation and loss of optical quality of said ultra-thin optical pieces. The ultra-thin optical pieces can be from 25-200 microns and their structural integrity can be preserved through uninterrupted support throughout the encapsulation of one or more fluids, e.g., a saline solution and an oil solution, which can be used to form a liquid meniscus lens. In some embodiments, interlocking features included in the ultra-thin optical parts can be included in order to help create the seal and/or provide structural support to the liquid lens assembly. In another embodiment, the supporting pieces to the ultra-thin optical components have an interlocking or centering mechanism, to aid in the assembly and sealing of said optical assembly. | 03-05-2015 |