Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 8101918 | Re-imaging infrared lenses A re-imaging optical system includes a front objective lens group, a relay lens and a Dewar assembly. The front objective lens group includes at least three lenses for focusing light entering an entrance pupil and forming a first image located adjacent or near a fie... | 01/24/2012 |
| 8071947 | Variable aperture for infra-red cameras A variable aperture assembly for an infrared camera for use with optics having two or more f-numbers. The variable aperture assembly includes a variable iris disposed substantially along an axis of the infrared camera and is thermally connected to a cooling assembly... | 12/06/2011 |
| 7863570 | Multiband, single element wide field of view infrared imaging system A compact, wide field of view, infrared imaging system with two Mid-Wave Infrared (MWIR) and, optionally, an additional one Long-Wave Infrared (LWIR) band, has a single, color corrected lens element embedded within the detector/dewar assembly. The lens element has t... | 01/04/2011 |
| 7816650 | External variable aperture and relay for infra-red cameras An external optical relay assembly to allow an infrared camera with a fixed aperture to be used with a variety of fore optics, including refractive compound lenses, reflective telescopes, and reflective/refractive lenses, by providing an external, cooled aperture, t... | 10/19/2010 |
| 7655911 | Image sensor having a variable aperture and mono-color focal plane array for dual color detection An image sensor is provided that includes a focal plane array; a cold shield having a top wall disposed over the focal plane array and defining an aperture operatively configured to be selectively switched between a first diameter and a second diameter that is large... | 02/02/2010 |
| 7642515 | Component for detecting especially infrared electromagnetic radiation A component for detecting electromagnetic radiation comprises: a housing defining a chamber placed under a vacuum or underpressure, one of the faces of the housing including a window which is transparent to the radiation to be detected and the chamber including at l... | 01/05/2010 |
| 7385199 | Microbolometer IR focal plane array (FPA) with in-situ mirco vacuum sensor and method of fabrication A microbolometer IR FPA is provided with in-situ vacuum sensing capability by realizing that the IR sensor microbolometer pixel element itself may be used as a vacuum sensor. The application of an electrical signal to the resistive element heats the bolometer materi... | 06/10/2008 |
| 7369241 | Continuous optical measuring apparatus and continuous optical measuring method An inexpensive continuous optical measuring apparatus with high cost/performance ratio capable of obtaining the emission of light at respective fixed positions arranged on a foundation member, by a simple device or a control, and a continuous optical measuring metho... | 05/06/2008 |
| 7351974 | Integrated circuit infrared sensor and associated methods An integrated circuit sensor may include at least one infrared sensing element on a substrate. The sensing element may include at least one first thermocouple junction heated from infrared radiation, at least one second thermocouple junction connected to the first t... | 04/01/2008 |
| 7348562 | Method for adapting an existing thermal imaging device A method for adapting existing thermal imaging devices employing uncooled focal plane arrays (UFPA) for thermal imaging of target surfaces, the device including a housing (12) with an opening (14) for directing incident infrared rays along an optical p... | 03/25/2008 |
| 7343002 | Bearing assembly A bearing assembly suitable for use in conjunction with x-ray device having a rotating target anode and electron source disposed in an evacuated enclosure. The bearing assembly includes a shaft having a rotor hub to which the anode is mounted. The shaft cooperates w... | 03/11/2008 |
| 7335884 | Compensation circuit for compensating non-uniformity according to change of operating temperature of bolometer The present invention relates to a bolometer, and more specifically to a compensation circuit for compensating non-uniformity due to the difference of operating temperature between bolometers which exist in bolometer array using semiconductor material. A compensatio... | 02/26/2008 |
| 7332720 | Cold shield for cryogenic camera A cold shield of a cryogenic camera. The cold shield reflects external thermal radiation away from the cryogenic camera, so as to shield the cryogenic camera in a cryogenic temperature such that no internal thermal radiation will be generated. The cryogenic camera h... | 02/19/2008 |
| 7329869 | Camera system A camera system exhibiting reduced effects from temperature changes. The camera system includes an IR sensor; an optical arrangement adapted to focus incoming light onto the sensor; a processing arrangement adapted to process signals produced by the sensor; a heatsi... | 02/12/2008 |
| 7326932 | Sensor and cap arrangement The invention provides a sensor element formed in a first substrate and at least one optical element formed in a second substrate, the first and second substrates being configured relative to one another such that the second substrate forms a cap over the at least o... | 02/05/2008 |
| 7326936 | Photodetector and photodetecting device An infrared detector includes a silicon substrate, an infrared reflecting film, a diaphragm including a bolometer thin film, disposed above the silicon substrate across a gap, and a signal line that electrically connects the bolometer thin film and the infrared refl... | 02/05/2008 |
| 7304297 | Thermal imager utilizing improved radiometric calibration technique A thermal imaging apparatus comprises a thermal image camera having a lens and a display. The camera further includes a focal plane array located behind the lens for converting imaging radiation to produce an image signal for further processing. A shutter mechanism ... | 12/04/2007 |
| 7294836 | Thermal electromagnetic radiation detector comprising an absorbent membrane fixed in suspension The absorbent membrane of the detector is fixed in suspension by at least one thermally insulating support part onto a front face of a substrate comprising at least two electric connection terminals electrically connected to the membrane, for example by means of con... | 11/13/2007 |
| 7282715 | Thermal imaging cameras A modular hyperspectral thermal camera that combines a wide field-of-view with a low erroneous recognition rate is described. The modular hyperspectral thermal camera provides such low erroneous recognition rates without any requirement for cryogenically cooling the... | 10/16/2007 |
| 7279682 | Device for maintaining an object under vacuum and methods for making same, use in non-cooled infrared sensors A device for holding an object under a vacuum and processes for making the device, which may find application to uncooled infrared detectors. In the device, a leak tight cavity that contains the object, and in which the vacuum is created, and a getter designed to tr... | 10/09/2007 |
| 7276695 | Bolometer infrared detector and afterimage reduction method A bolometer infrared detecting element has a thermal isolation structure in which a temperature detector comprising a bolometer thin film is held floating from a circuit substrate by beams. As infrared rays incident on the temperature detector or reflected by an inf... | 10/02/2007 |
| 7274443 | Corrosion monitoring system, optical corrosion probe, and methods of use Optical corrosion monitoring and detection systems as well as methods to detect and monitor corrosion under process conditions and generally in real time using electromagnetic radiation, particularly light. The systems generally provide for incident light to be allo... | 09/25/2007 |
| 7259904 | Coarse spectrometer with a grating A quasi-monochromatic light beam carrier for a particular telecommunication channel is likely to experience drift because of age, temperature, or other factors, and may cause the centroid wavelength of the carrier to shift. Temperature adjustments by wavelength lock... | 08/21/2007 |
| 7253396 | Cooled photodetector Cooled photosensitive cell (80) comprising a table (50), sensors (66) which are fitted on the table, a screen (80) to prevent parasitic radiation on the sensors, and at least one Joule-Thomson cooler (41, 42) to cool the table and ... | 08/07/2007 |
| 7241131 | Thick film heater apparatus A thick-film electric heater having thick-film layers applied directly on a thermally conductive non-flat substrate. Preferably, the substrate is cylindrically shaped. A dielectric layer is silk-screened on the substrate surface. A resistive layer is silk-screened o... | 07/10/2007 |
| 7235785 | Imaging device with multiple fields of view incorporating memory-based temperature compensation of an uncooled focal plane array A plurality of temperature dependent focal plane arrays operate without a temperature stabilization cooler and/or heater over a wide range of ambient temperatures. Gain, offset and/or bias correction tables are provided in a flash memory in memory pages indexed by t... | 06/26/2007 |
| 7213400 | Liquefying and storing a gas Apparatus and methods for improving the safety and efficiency and decreasing the cost of producing liquid gas, such as liquid oxygen, with a small-scale use liquefaction device, according to various embodiments of the present invention. In one embodiment, liquid oxy... | 05/08/2007 |
| 7186978 | Compact emissivity and temperature measuring infrared detector A hand-held, fleet deployable infrared camera with integrated hardware and software providing real time processing of infrared images. The camera senses variable temperature images over a selected object of interest and senses variable emissivities over the object. ... | 03/06/2007 |
| 7180067 | Infrared imaging system with ellipsoid reflective warm baffle and method An infrared imaging system uses an uncooled elliptical surface section between reflective surfaces to allow a detector to perceive a cold interior of a vacuum chamber rather than a warmer surface of a structure or housing. In this way, background infrared radiation ... | 02/20/2007 |
| 7180054 | Methods and devices for erasing errors and compensating interference signals caused by gammagraphy in radiometric measuring systems A method and device for the error-blanking and -compensation of interference signals caused by gammagraphy in radiometric measuring systems for process measurements. The device includes, an input for measured values Lm(t) of a process variable L(t) | 02/20/2007 |
| 7166842 | Gas sensor arrangement with reduced settling time A gas sensor arrangement for detecting the presence or concentration of an analyte in a measuring gas comprises a gas measuring chamber having an inlet for receiving the measuring gas. A measuring radiation source is arranged in the gas measuring chamber. The measur... | 01/23/2007 |
| 7164131 | High fidelity electrically calibrated pyroelectric radiometer Using biased, electrical power feedback to an electrical heater, the output signal from a pyroelectric detector is made to follow the waveform of incident electromagnetic radiation. The feedback power is applied to the detector to reduce the rate of change of the de... | 01/16/2007 |
| 7161150 | Handheld isotope identification system A portable radiation detector using a high-purity germanium crystal as the sensing device. The crystal is fabricated such that it exhibits a length to width ratio greater than 1:1 and is oriented within the detector to receive radiation along the width of said cryst... | 01/09/2007 |
| 7158318 | Flare stoppper and taking lens unit A ring-shaped flare stopper is made of a phosphor bronze plate having a thickness of 0.03 mm by sheet metal stamping. An inner periphery for defining a circular opening is formed in the flare stopper. The inner periphery has the form of the side face of a circular t... | 01/02/2007 |
| 7157706 | Cryogenically cooled adjustable apertures for infrared cameras A continuously variable diaphragm or swappable fixed aperture for use in thermal infrared cameras, which aperture or diaphragm can be cooled to cryogenic temperatures. The invention contemplates mounting aperture control means, if necessary, in a vacuum or extending... | 01/02/2007 |
| 7147908 | Semiconductor package with getter formed over an irregular structure A semiconductor package includes a substrate having a first surface portion in a cavity. The first surface portion includes an artificially formed grass structure. The package includes a getter film formed over the grass structure. ... | 12/12/2006 |
| 7145721 | Anti-reflective structures An anti-reflective structure is formed on a surface to transmit incident light with minimal losses. The anti-reflective surface has a plurality of protrusions having a feature size smaller than the wavelength of incident light. The protrusions increase in height in ... | 12/05/2006 |
| 7135698 | Multi-spectral infrared super-pixel photodetector and imager A multi-spectral super-pixel photodetector for detecting four or more different bands of infrared radiation is described. The super-pixel photodetector includes two or more sub-pixel photodetectors, each of which includes a diffractive resonant optical cavity that r... | 11/14/2006 |
| 7129501 | Radiation detector system having heat pipe based cooling A radiation detector system having a heat pipe based cooling. The radiation detector system includes a radiation detector thermally coupled to a thermo electric cooler (TEC). The TEC cools down the radiation detector, whereby heat is generated by the TEC. A heat rem... | 10/31/2006 |
| 7127906 | Cooled photosensitive cell The cooled photosensitive cell (1) according to the invention comprises a table (2), a sensor (3) which is fitted on the table (2) and is connected to electrical connection tracks (30), a screen (10) to prevent parasitic rad... | 10/31/2006 |
