1147 results about "Ir detector" patented technology

A non-contact infrared thermometer measures target temperatures remotely without requiring the ratio of the target size to the target distance to the thermometer. A collection means collects and focusses target IR radiation on an IR detector. The detector measures thermal energy of the target over a spectrum using micromechanical sensors. A processor means calculates the collected thermal energy in at least two different spectral regions using a first algorithm in program form and further calculates the ratio of the thermal energy in the at least two different spectral regions to obtain the target temperature independent of the target size, distance to the target and emissivity using a second algorithm in program form.

The invention relates to an Infrared (IR) thermometer including an IR detector configured to provide an IR emission data representative of a temperature of an area of tissue. The IR thermometer also includes one or more secondary sensors configured to provide an IR thermometer positioning data. At least one microcomputer is configured to receive the IR thermometer positioning data from one or more secondary sensors. The at least one microcomputer is configured to run an algorithm to convert the IR thermometer positioning data to an IR thermometer positioning indication, wherein the IR thermometer positioning indication suggests a direction to move the IR thermometer for a substantially optimal IR detector view of the area of tissue. The invention also relates to a guiding means including a positioning sensor and a display of IR thermometer positioning information, and a method for positioning an IR thermometer.

An IR detector in the form of a thermopile including one or more thermocouples on a dielectric membrane supported by a silicon substrate. Each thermocouple is composed of two materials, at least one of which is p-doped or n-doped single crystal silicon. The device is formed in an SOI process. The device is advantageous as the use of single crystal silicon reduces the noise in the output signal, allows higher reproducibility of the geometrical and physical properties of the layer and in addition, the use of an SOI process allows a temperature sensor, as well as circuitry to be fabricated on the same chip. The detector can also have an IR filter wafer bonded onto it and/or have arrays of thermopiles to increase the sensitivity. The devices can also be integrated with an IR source on the same silicon chip and packaged to form a complete and miniaturised NDIR sensor.

A laser beam source and an operating method thereof is provided for a directional infrared countermeasures (DIRCM) weapon system for defensively countering guided missiles having infrared seeking heads, by directing an infrared laser beam at the guided missile so as to disorient, saturate, or irreversibly destroy the IR detectors and circuitry arranged in the target seeking head. The power, pulse frequency and spectral composition of the laser beam is adjustable and selectable as required to adapt to any particular defensive engagement. To achieve this, the laser beam source comprises an Nd:YAG pumping laser and an optical parametric oscillator including an oscillator crystal arranged in a resonator cavity. The crystal includes a plurality of different periodically polarized crystal zones having different lattice constants. The adjacent zones can be grouped together into selectable crystal zone groups. The beam cross-section of the pumping laser beam corresponds to the cross-section of a single crystal zone or of a crystal zone group encompassing plural zones. The crystal is arranged on a slide table that is slidably displaceable by a servomotor, to move a selected crystal zone or group into the path of the pumping laser beam. Thereby the wavelength components and the relative intensities thereof of the output laser beam can easily be selectively adjusted.

The present invention is generally directed to a method for non-contact analyte detection by selectively exciting one or more analytes of interest using an IR source optionally operated to produce pulses of light and tuned to at least one specific absorption band without significantly decomposing organic analytes and determining if the analyte is present by comparing emitted photons with an IR detector signal collected one or more times before, during, after, or any combination thereof exciting the analyte. Another embodiment of the present invention provides a method for non-contact analyte detection by selectively exciting one or more analytes of interest using one or more IR sources that are optionally operated to produce pulses of light and tuned to at least one specific wavelength without significantly decomposing organic analytes, wherein the analyte is excited sufficiently to increase the amount of analyte in the gas phase, and wherein the content of the gas is examined to detect the presence of the analyte.

A display panel with a plurality of pixels, including a pixel of a first pixel configuration with a first sub-pixel, which comprises: a first OLED configured to emit light at a base wavelength, and a first quantum dot structure disposed over the first OLED, configured to absorb light of the base wavelength so as to emit light at a first longer wavelength. Embodiments include a touch-sensing display panel, where the first quantum dot structure is configured to emit IR light into a light guide having a front surface forming a touch-sensing region and an opposite rear surface facing the pixels, wherein said IR emitter is optically connected to emit light into the light guide for propagation therein through total internal reflection in at least the front surface; and an IR detector connected to receive propagated light from the light guide.

An audio transmitter and remote control unit receiver and storage apparatus for transmitting audio signals from electronic equipment, such as a television set, to individuals remotely located therefrom includes an audio transmitter for disposition adjacent to the electronic equipment and an audio receiver and remote control unit storage case positioned remotely form the electronic equipment. The audio transmitter having electronic circuitry for receiving audio transmissions from the electronic equipment and an audio antenna or IR sender for transmitting audio signals to remote locations. The audio receiver and remote control unit storage case having a floor and a pair of opposed sidewalls forming a receptacle for holding therein a remote control unit, a receiver antenna or IR detector for detecting audio signals conveyed from the audio transmitter, and an audio output speaker for broadcasting audio conveyed from the electronic equipment to the adjacently positioned individual.

The invention discloses an automobile theft prevention monitoring system based on a voice recognition technology. By the system, a user can accurately detect whether automobile glass is broken into pieces, and a thief enters the automobile for theft, an active theft prevention technology is adopted, a third-generation mobile communication (3G) technology is fully utilized, and multiple alarm methods are adopted. An embedded computer is respectively connected with a key, a microphone, a display, a camera, a storage, a global position system (GPS) positioner, a theft prevention door lock, a theft prevention engine lock, a passive infrared detector, a transaction detector, a frequency analyzer and a 3G wireless signal transceiver, wherein the transaction detector is connected with a vibrating sensor; a filter is respectively connected with the frequency analyzer and a glass breaking detector; the 3G wireless signal transceiver is respectively in wireless connection with a 3G mobile phone and a 110 alarm console; and the 3G mobile phone is in wireless connection with the 110 alarm console. The system is mainly applied to automobile theft prevention system, and can be applied to the financial field of banks and the like.

The invention provides an intelligent security and protection method and system based on a mobile terminal. The method concretely comprises the following steps that human face image information is collected and stored in advance, and when an infrared detector arranged in the intelligent security and protection camera end detects that people enter an image pick-up range, whether a camera starts the image collecting function or not is judged; if the camera starts the image collecting function, the collected real-time human face image information is compared with the pre-stored human face image information; if the comparison result shows that the collected real-time human face image information is inconsistent with the pre-stored human face image information, the prompting information is sent to the mobile terminal with the preset correlation with the intelligent security and protection image pick-up end. On one hand, the method and the system have the advantages that the human face image comparison flow process is simplified, the searching efficiency is improved, and meanwhile, the customer visit rate is subjected to continuous statistics; on the other hand, the method and the system are based on the mobile terminal, and portability is realized, so that great convenience is provided for users.

An infrared detection and alarm system for the bottom shelf of shopping carts having attached to the bottom shelf an infrared emitter which shall emit therefrom infrared light which shall be received by an infrared detector when no merchandise is located on the bottom of the cart and if a piece of merchandise is located on the bottom shelf the light shall be interrupted. Upon interruption of the light, a transmitter shall communicate a code to a receiver mounted on the checkout stand at which point said receiver shall activate an LED warning light to communicate to the sales clerk the presence of merchandise on the bottom shelf of the shopping cart.

The invention discloses a method and a device for detecting CO2 carbon isotope by infrared spectrum; and the device comprises a reflecting pool, an infrared source, an off-axis parabolic mirror, an interferometer, an infrared detector connected with a computer, a target gas input gas circuit used for inputting CO2-containing target gas, and a standard gas input gas circuit used for inputting standard CO2 gas with the known delta 13 CO2 value. The method and the device can be used for obtaining the delta 13 CO2 value of the detected gas according to the infrared spectrum acquired by the infrared detector.

The invention relates to a micro-bridge infrared detector and a preparation method thereof. The micro-bridge infrared detector comprises a readout circuit substrate, and a plurality of hollow column structures positioned on the readout circuit substrate; a micro-bridge structure comprises a column through hole etching protection layer which is positioned on one side, far away from the readout circuit substrate, of the sacrificial layer and is in contact with the sacrificial layer; the projection of a hole-shaped structure formed at the position, corresponding to the hollow column structure, ofthe column through hole etching protection layer on the readout circuit substrate is overlapped with the projection of a hole-shaped structure formed at the position, corresponding to the hollow column structure, of the sacrificial layer on the readout circuit substrate; and the column through hole etching protection layer and the sacrificial layer are etched at the same time, so that a pluralityof column through holes can be formed; and the micro-bridge structure further comprises a thermosensitive layer, an isolation dielectric layer, an electrode layer and a passivation layer which are sequentially arranged on the column through hole etching protection layer. According to the technical schemes, the roughness of the inner wall of a column through hole is reduced, and the sensitivity ofthe micro-bridge infrared detector is improved.

The invention relates to a maritime search and rescue instrument based on an infrared detector. The search and rescue instrument is arranged on a search and rescue ship, controls the infrared detector by a DSP system and an embedded control system, and detects a target by a machine vision technology. The maritime search and rescue instrument facilitates identifying and tracing small targets such as persons in water or liferafts during maritime search and rescue, makes search at night possible and improves successful search and rescue rate.

A gas sensor for measuring at least one gas concentration, in particular for a vehicle climate control system, having a substrate, an IR radiation source fastened on the substrate, an IR detector fastened on the substrate, a measurement chamber for receiving a gas having the gas concentration that is to be measured, a shielding device situated in the measurement chamber between the IR radiation source and the IR detector, for shielding a direct transmission of IR radiation from the IR radiation source to the IR detector along an optical axis, and a reflective surface that has a concavely curved first mirrored area for receiving the IR radiation emitted by the IR radiation source, and that has a concavely curved second mirrored area that reflects the IR radiation to the IR detector, the measurement chamber being formed between the reflective surface and the substrate.