4426 results about "Infrared detector" patented technology

A method of fabricating an infrared detector, a method of controlling the stress in a polycrystalline SiGE layer and an infrared detector device is disclosed. The method of fabricating includes the steps of forming a sacrificial layer on a substrate; patterning said sacrificial layer; establishing a layer consisting essentially of polycrystalline SiGe on said sacrificial layer; depositing an infrared absorber on said polycrystalline SiGe layer; and thereafter removing the sacrificial layer. The method of controlling the stress in a polycrystalline SiGe layer deposited on a substrate is based on varying the deposition pressure. The infrared detector device comprises an active area and an infrared absorber, wherein the active area comprises a polycrystalline SiGe layer, and is suspended above a substrate.

A hybrid image sensor includes an infrared detector array and a CMOS readout integrated circuit (ROIC). The CMOS ROIC is coupled to at least one detector of the IR detector array, e.g., via indium bump bonding. Each pixel of the CMOS ROIC includes a first, relatively lower gain, wide dynamic range amplifier circuit which is optimized for a linear response to high light level input signals from the IR detector. Each pixel also includes a second, relatively higher gain, lower dynamic range amplifier circuit which is optimized to provide a high signal to noise ratio for low light level input signals from the IR detector (or from a second IR detector). A first output select circuit is provided for directing the output of the first circuit to a first output multiplexer. A second output select circuit is provided for directing the output of the second circuit to a second output multiplexer. Thus, separate outputs of the first and second circuits are provided for each of the individual pixel sensors of the CMOS imaging array.

The invention discloses an anti-theft system of a power device, comprising a main control unit, an anti-theft alarming module connected with the main control unit, and a sampling system, as well as a remote monitoring terminal; the main control unit carries out communication with the remote monitoring terminal; wherein, the main control unit comprises at least one camera; the anti-theft alarming module realizes anti-theft alarming by an infrared detector or polar plate circuit detecting lines connected in series on each solar polar plate, and generates alarming to the main control unit; the remote monitoring terminal realizes remote monitoring and control. The anti-theft system of the power device has the advantages that: besides the infrared detection function, circuit protection is added as well, thus realizing multi-functional protection effects, not only generating the alarming function on field, but also being capable of shooting the field situations and transmitting to a party in need simultaneously. On the other hand, the system combines anti-theft and power device detection, which not only realizes anti-theft, but also can detect the performances of the power device like detecting the voltage and the current. Moreover, the anti-theft system of the power device can realize undervoltage and undercurrent alarming.

A system and method for providing a polling signal transmitted from a vehicle that is received by a key fob held by an authorized user of the vehicle as the user approaches the vehicle. When the key fob receives the polling signal, it will automatically transmit a command signal back to the vehicle for some vehicle operation to be performed. Battery power is conserved on the vehicle by using an infrared detector to first detect whether a living thing is in proximity to the vehicle prior to the vehicle transmitting the polling signal.

Methods and apparatus for determining an object's three-dimensional location (i.e. real world coordinates) using the audio-video infrastructure of a 3G cellular phone or a 3C (Computer, Communications, Consumer) electronic device. A first detection device (e.g. a camera) is used to capture images of the objects. The captured image data is used to compute location data of the object in a first two-dimensional plane. A second detection device (e.g. microphone or infrared detector) may be used to collect additional location data in a second plane, which when combined with image data from the captured images allows the determination of the real world coordinates (x, y, z) of the object. The real-world coordinate data may be used in various applications. If the size of an object of interest is known or can be calculated, and the size of the projected image does not vary due to rotation of the object, a single camera (e.g. the camera in a 3G or 3C mobile device) may be used to obtain three-dimensional coordinate data for the applications.

A system for non-invasively monitoring at least one hemodynamic vascular parameter of an individual is disclosed. The system comprises (a) at least two infrared detectors being positionable in a spaced apart configuration against a region of a skin of the individual above at least one blood vessel, each of said at least two infrared detectors being for individually collecting infrared spectral data from said region of the skin, said infrared spectral data corresponding to a volume of blood present within said at least one blood vessel; and (b) a processing unit being in communication with said at least two infrared detectors, said processing unit being for independently processing said infrared spectral data collected by each of said at least two infrared detectors so as to yield information pertaining to the at least one hemodynamic vascular parameter of the individual.

The present relates in general to upconversion luminescence ("UCL") materials and methods of making and using same and more particularly, but not meant to be limiting, to Mn2+ doped semiconductor nanoparticles for use as UCL materials. The present invention also relates in general to upconversion luminescence including two-photon absorption upconversion, and potential applications using UCL materials, including light emitting diodes, upconversion lasers, infrared detectors, chemical sensors, temperature sensors and biological labels, all of which incorporate a UCL material.

The invention relates to an infrared detector with a micro-bridge structure, which belongs to the technical field of micro-electromechanics, and comprises a silicon substrate as a read-out circuit of the infrared detector; a metal reflecting layer deposited on the silicon substrate; a dielectric layer which is deposited in a groove of the metal reflecting layer and has the height being consistentwith that of the metal reflecting layer; a sacrifice layer and a first release protection layer used as protection of release of the sacrifice layer which are deposited on the dielectric layer and the metal reflecting layer and form through holes by lithography and etching; a copper or tungsten pier which is deposited in the through hole of the sacrifice layer; a metal electrode deposited on the copper or tungsten pier and the first release protection layer; and a sensitive material detecting layer which is deposited on the metal electrode and the first release protection layer. A Cu-column micro-bridge structure is manufactured by using the damascene process, and a flat micro-bridge plane is manufactured by introducing the chemical mechanical polishing process (CMP), thereby being conductive to the follow-up process and improving the performances.

An imaging system for locating subcutaneous blood vessels and a method for locating subcutaneous blood vessels using the system. The system includes at least one infrared emitter an infrared detector, a computing unit that enhances images and outputs enhanced images in substantially real time, a display device for displaying enhanced images, and a power source. The method includes the steps of preparing a body target area, putting on the headset, powering up the system, locating a target blood vessel, inserting a needle into the target blood vessel, and performing the medical procedure.

Infrared detector elements and methods for forming infrared detector elements in which the top metal layer of CMOS circuitry of the detector element is employed as a lead metal reflector for the infrared detector.

Described is a method which uses spectral data simultaneously collected in a continuous array of discrete wavelength points of the visible spectrum adjacent to the infrared and near infrared part of the light spectrum. The spectral data is collected using a number of detectors with different sensitivity ranges. Some detectors may be sensitive to visible and possibly, to part of the near infrared portion of radiation. Spectral data from die infrared spectrum is collected with the infrared detectors, and are in some embodiments insensitive to the visible links.

Electromagnetic radiation detector elements and methods for detecting electromagnetic radiation, in particular, infrared radiation, are provided. The electromagnetic radiation detector element can include an electromagnetic radiation detector and a plasmonic antenna disposed over the electromagnetic radiation detector. The plasmonic antenna can include a metal film, a sub-wavelength aperture in the metal film, and a plurality of circular corrugations centered around the sub-wavelength aperture.

An induction heating cooker includes a surface, a heating coil for inductionally-heating a load pan, an inverter for supplying a high-frequency current to the heating coil, an infrared detector which detects infrared radiation emitted from the load pan and is located under a top plate, a first temperature detector for detecting a temperature of the load pan based on an output of the infrared detector, a heating controller for controlling a power output from the inverter, a thermo-sensitive element for receiving heat from the top plate, and a second temperature detector for detecting a temperature of the load pan based on an output of the first thermo-sensitive element. This induction heating cooker detects a temperature change of the load pan accurately by detecting an infrared radiation from the load pan, and detects the temperature of the load pan by the heat conduction from the pan even if ambient light enters.

A device designed to be plugged directly into a household power supply socket comprising a sensor for controlling an electrical device, the sensor having selectable sensing orientation and being one of a motion detector, an infrared detector, a photodetector or a sound detector, whereby the sensor generates a control signal to the electrical device, the electrical device being one of a light bulb, a mobile telephone, a security device such as a sound or burglar alarm, or a monitoring device such as a surveillance camera, upon detection of a change in an environment, e.g. movement, ambient light, sound, etc.

A system and a consumer electronics kit include an infrared transmitter module and an infrared receiver module. The infrared transmitter module includes a video input that a user can connect to a video output of a portable image display / storage device. The infrared receiver module includes an infrared detector configured to receive infrared signals from said infrared transmitter module, where the received infrared signals contain image information of one or more images stored on the portable image display / storage device. The image information may be still image data representing photographs, moving image data, image data generated by an application program. The infrared receiver module includes a connector that a user can connect to a video input of an electronic device. The electronic device may comprise a display device such as a television or computer monitor, an LCD display, or a portable viewer housing the infrared receiver module and an LCD display.

In a method and arrangement for installing or updating a large number of television receivers in, e.g., hotels, one of the television receivers (1) is manually programmed. The data is then downloaded from the television receiver into a remote control unit (3) by modulating a conventional status LED (17) of the television receiver. In accordance with the invention, the status LED is of a type which emits visible light (171) as well as infrared light (172). The modulated infrared light beam (172) is detected by an infrared detector (34) of the remote control device and stored (35) therein. The data stored in the remote control unit is subsequently uploaded to other television receivers using the conventional infrared channel (33,15).

The invention relates to a self-walking underground cable failure detection intelligent instrument which comprises an underground cable hot failure infrared detector 1. an underground cable partial discharge ultraviolet detector 2. an underground cable insulation aging electric field distribution detector 3. an underground cable self-walking patrolling robot 4 and an underground cable failure predication system 5. The self-walking underground cable failure detection intelligent instrument realizes the comprehensive detection and prediction on the underground cable failure based on the multi-sensor detection, multi-information amalgamation, and movable intelligent patrolling mode, has high degree of automation as well as full-size, intuitive and reliable information, and greatly lightens the working load and working intensity of personnel.

The invention discloses an epidemic preventing and controlling system for detecting and searching people with abnormal temperatures. The system comprises an information acquisition processing module, a communication processing module and a terminal processing module. The information acquisition processing module consists of an infrared detector, a camera and an information acquisition processor, wherein the infrared detector is used for acquiring face temperature information; the camera is used for acquiring face video information; and the information acquisition processor is used to perform motion target division and profile extraction on the face temperature information and the face video information so as to obtain information of people with abnormal temperatures. The communication processing module is used for transmitting the information of the people with the abnormal temperatures to the terminal processing module. The terminal processing module performs real-time dynamic searching of the people with abnormal temperatures in a monitored area and can send scheduling instruction information for giving an epidemic prompt and tracking people and the like. The system of the invention can monitor and recognize the people with abnormal temperatures in the monitored area and accordingly make a correct response and give good warning for coming epidemics, so that even epidemics outbreak, the people with abnormal temperatures can be found at first time and the epidemic preventing efficiency is improved as high as possible.

A passive infra-red detector including at least three sub-detectors, each sub-detector being operative to receive infra-red radiation from a corresponding one of at least three sub fields-of-view, each sub field-of-view being exclusively defined by an optical element which does not define any other sub field of view, the sub fields-of-view being angled with respect to each other, adjacent ones of the sub fields-of-view being separated by a gap of no more than 30 degrees and at least one of the sub fields-of-view having at least one of the following characteristics: extending over no more then 45 degrees in azimuth; and including not more than three azimuthally distributed detection zones, and signal processing circuitry, operative to receive output signals from the sub detectors and to provide a motion detection output.

A superlattice-based infrared absorber and the matching electron-blocking and hole-blocking unipolar barriers, absorbers and barriers with graded band gaps, high-performance infrared detectors, and methods of manufacturing such devices are provided herein. The infrared absorber material is made from a superlattice (periodic structure) where each period consists of two or more layers of InAs, InSb, InSbAs, or InGaAs. The layer widths and alloy compositions are chosen to yield the desired energy band gap, absorption strength, and strain balance for the particular application. Furthermore, the periodicity of the superlattice can be “chirped” (varied) to create a material with a graded or varying energy band gap. The superlattice based barrier infrared detectors described and demonstrated herein have spectral ranges covering the entire 3-5 micron atmospheric transmission window, excellent dark current characteristics operating at least 150K, high yield, and have the potential for high-operability, high-uniformity focal plane arrays.

The thermoelectric detector consists of an absorber structure supported by two electrically connected beams made of thermoelectric materials such as polysilicon, polysilicon / germanium, bismuth-telluride, skutterrides, superlattice structures, nano-composites and other materials. One end of the thermoelectric beam connects to the absorber structure; the other end connects to the substrate. Infrared radiation incident on the absorber heats up the absorber, resulting in a temperature gradient along the length of the thermoelectric legs, and generating an electrical voltage. The detector arrays are fabricated using micromachining process. The absorber structure is formed over a sacrificial material that is removed at the end of the processing, leaving the detector suspended and thermally isolated. The sacrificial processing method enables the production of small pixel thermoelectric detectors in large two-dimensional arrays with high sensitivity.

An imaging system for locating subcutaneous blood vessels and a method for locating subcutaneous blood vessels using the system. The system includes at least one infrared emitter an infrared detector, a computing unit that enhances images and outputs enhanced images in substantially real time, a display device for displaying enhanced images, and a power source. The method includes the steps of preparing a body target area, putting on the headset, powering up the system, locating a target blood vessel, inserting a needle into the target blood vessel, and performing the medical procedure.

A system and method for providing a polling signal transmitted from a vehicle that is received by a key fob held by an authorized user of the vehicle as the user approaches the vehicle. When the key fob receives the polling signal, it will automatically transmit a command signal back to the vehicle for some vehicle operation to be performed. Battery power is conserved on the vehicle by using an infrared detector to first detect whether a living thing is in proximity to the vehicle prior to the vehicle transmitting the polling signal.

The invention relates to a safety and security system designed to protect a designated area. The system comprises sensors of various types (radars, infrared detectors for instance) and sources of intelligence. Correlation is run between instant-track data and non-instant-track data before the level of threat of the tracks is analysed. Reliability of this analysis is thus greatly enhanced. Also a method is provided to develop systems of this type which provides an integrated specification and design method which covers technical and human factors.

The invention discloses a gesture-controlled mobile phone, which includes a baseband chip, and the mobile phone also includes a multi-channel proximity sensing unit connected to the baseband chip, and the multi-channel proximity sensing unit includes: an infrared LED An infrared LED array; an infrared detector connected to the infrared LED array, used to detect the reflected light of the infrared light emitted by each infrared LED; a gesture recognition module connected to the infrared detector, used to The reflected light of the infrared light recognizes user gestures; a gesture-command conversion module connected to the gesture recognition module is used to convert the recognized user gestures into instructions according to the preset gesture-command correspondence and send them to the baseband chip to execute. The invention enables users to realize gesture control on the mobile phone without touching mechanical keys and touch screens, and realizes smooth multi-point touch effect while achieving lower mobile phone manufacturing costs.

The invention provides an infrared receiver and a manufacturing method thereof. A metallic reflecting layer, a dielectric layer, a sacrifice layer, a sensitive material detecting layer and a metallic electrode are precipitated on a silicon bulk of the infrared receiver in sequence. The metallic reflecting layer is provided with a metallic reflection pattern. The height of the dielectric layer and the height of the metallic reflecting layer are the same. The invention also provides the manufacturing method of the infrared receiver, comprising the following steps: the metallic reflecting layer is formed on the silicon bulk and patterning is carried out on the metallic reflecting layer; the dielectric layer is formed on the metallic reflecting layer and planarization is carried out on the dielectric layer; medium is etched and reserved on the surface of a metallic layer, and the height of the dielectric layer and the height of the metallic reflecting layer are confirmed to be the same; the sacrifice layer is precipitated; and a microbridge infrared absorption structure is fabricated.

Micromachined, CMOS p+-active / n-well diodes are used as infrared sensing elements in uncooled Focal Plane Arrays (FPA). The FPAs are fabricated using a standard CMOS process followed by post-CMOS bulk-micromachining steps without any critical lithography or complicated deposition processes. Micromachining steps include Reactive Ion Etching (RIE) to reach the bulk silicon and anisotropic silicon wet etching together with electrochemical etch-stop technique to obtain thermally isolated p+-active / n-well diodes. The FPAs are monolithically integrated with their readout circuit since they are fabricated in any standard CMOS technology.

The invention discloses a multi-wavelength high-sensitivity online monitor of multi-component NH3 and H2O based on semiconductor laser absorption spectroscopy. It contains host chassis and open long-path system. Equip power receptacle, switch, fiber connector and data transmission interface. It is characterized in that: there are near-infrared semiconductor laser, semiconductor laser controller, phase-locked amplifier, signal generator, data collecting and controlling module and infrared detector in host chassis which is connected with field optical system by fiber. Open optical system contains send-receive optical telescope and multielement reflector array. Optical telescope has input and output fiber couplers. The device realizes simultaneous testing of gas multi-component by using multi-wavelength and frequency division multi-signal detecting technique.