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6242740 Imaging system functioning on submillimeter waves  
The invention relates to detection performed over millimeter and submillimeter wavelengths, especially to imaging solutions functioning over a submillimeter-wavelength range. The system of the...
6239437 Passive infrared detector  
A passive infrared detection system which has a wide angular field of view and a flat or nearly flat front surface. Input optical elements direct and/or focus incident peripheral infrared...
6222191 Occupancy sensor  
A multiple sensing technology-based occupancy sensor including a unique sensor case assembly and sensor mounting scheme. The result is an occupancy sensor that is adjustable to provide broader...
6219857 Sensor device for use with a flush valve  
A sensor device includes a mounting frame having open front and rear ends, and right and left inner side walls opposite to each other in a longitudinal direction and extending between the front...
6218667 Sensor element with small area light detecting section of bridge structure  
A sensor element includes a light detecting section (2), a wiring section and a microlens section (7, 8). The light detecting section (2) is formed to be spaced from a substrate (1) to detect an...
6211522 Passive infra-red intrusion sensor  
An improved infra-red lens array for use in a passive infra-red intrusion sensor, which maintains high detection capability for intruders moving in the middle and near field, and yet discriminates...
6204502 Heat radiation detection device and presence detection apparatus using same  
A device for detecting thermal radiation having a detector and a reflector type concentrator. The detector is arranged to have one or more portions exposed to thermal radiation and one or more...
6201246 Non-imaging optical concentrator for use in infrared remote control systems  
A non-imaging optical concentrator (18, 70) includes an optically transparent body having a substantially dome-shaped convex surface (42, 74) of revolution formed about an optical axis (24) and at...
6190327 Disposable airway adapter for use with a carbon dioxide detector  
The invention is directed to a disposable airway adapter which includes two optical windows and a reflector, positioned such that radiation transmitted through the first optical window into the...
6181489 Combination lens and window retainer and housing assembly for a motion detector system  
A housing assembly includes a combination lens and window retainer, an inner optical lens, an outer optical window and a front cover. The retainer includes a middle body structure, a pair of side...
6175309 270 degree motion sensor  
The present invention concerns a motion sensor for use with a light. The device includes a housing having an outer edge and an interior space in which a plurality of sensors are located. The...
6163025 Motion detection system  
A detection system including motion detectors, which are built up and connected in such a manner that movement of an object through successive surveillance areas in one direction will result in...
6144031 Infrared video camera system with uncooled focal plane array and radiation shield  
An infrared video camera system comprises an uncooled infrared sensor mounted and a thermally conductive thin walled radiation shield for shielding radiation from reaching an active surface of the...
6140648 Compound-eye crime prevention sensor system  
A compound-eye crime prevention sensor system is constructed which reliably distinguishes between a human being and a small animal irrespective of the distance from the detector. This system has a...
6121876 System for absorbing and or scattering superfluous radiation in an optical motion sensor  
An infrared intrusion sensing system comprises a compound lens having a plurality of lines of focus for focusing infrared radiation that enters the system onto a detector, and a window to allow...
6087938 Outdoor intrusion detector  
An intrusion detection assembly including an intrusion detector including an inner housing, a detector disposed within the inner housing and a lens for focusing light from outside the inner...
6064067 High-gain infrared collector and data node  
An infrared collector employs a concentrator formed of a plurality of spatially related gradient-indexed (GRIN) lenses and a photodetector, interconnected by optical fibers. Since the GRIN lenses...
6051836 Low-profile dome-shaped multi-lens system  
A multi-lens system provides a plurality of sensitive areas of even size over a wide panoramic field of view and reduces an exposure height of the system above an installation plane, yet assuring...
6043493 Infrared sensor and method for compensating temperature thereof  
Infrared sensor that can make a temperature compensation by itself, and method for compensating a temperature thereof, are disclosed. The infrared sensor preferably includes a substrate, a...
6037593 Catoptric optical system for detecting motion of a radiant source  
A catoptric optical system enhances the ability of a radiation sensor to detect motion of a radiant source within a region of a three-dimensional space without need for a polyethylene lens array....
6037594 Motion detector with non-diverging insensitive zones  
A passive infrared motion detector that creates a detection pattern with non-diverging insensitive zones. The sensing elements are of alternating polarity and each has a width w. An optical...
5986785 Electronic apparatus with optical communication capability  
An electronic apparatus having an optical communication capability of the present invention has a casing 10 and optical filters 12 and 13 for screening an infrared beam emitting/receiving device...
5986265 Infrared object detector  
Two pairs of pyroelectric devices are each mounted on a cone-shaped substrate to precisely control their alignment. Each cone-shaped substrate is a part of a sensor module which also supports an...
5973330 Fluorescence detection apparatus  
A fluorescence detection apparatus is provided which has a partial reflection mirror 8 for transmitting a part of fluorescence light emitted from a fluorescent substance by projecting excitation...
5973326 Gas monitors  
A gas monitor includes an infra-red source enclosed within a housing having inner surfaces which are reflective. Radiation emitted from the source reflects off ellipsoidal surfaces and...
5949073 Photo detector  
A photo semiconductor element is covered by a cap with an incident window permitting incident light to penetrate through a translucent member. The photo semiconductor element detects a quantity of...
5944653 Dual IR and visible channel endodiagnostic apparatus  
Dual channel Endodiagnostic apparatus and methods by which infrared emissions within the range including 2 to 14 micrometers may be visualized in the form of encoded images to permit differential...
5923036 Spatially-multiplexed imaging microscope  
An infrared imaging microscope uses spatial encoding to divide an sample being examined into a plurality of pixel regions. The spatial encoding is provided by a digitally controlled mask, which is...
5923035 Infrared absorption measuring device  
A measuring device for determining the concentration of gases with two identical radiation sources and two radiation detectors, which delivers stable measured values despite the contamination that...
5914489 Continuous optical path monitoring of optical flame and radiation detectors  
Apparatus for the optical detection of flames or explosions, having an optical structure to perform continuous optical path monitoring of the optical window receiving the optical radiation, to...
5886821 Lens assembly for miniature motion sensor  
A motion sensor has a pyroelectric detector, a Fresnel lens array, a reducing lens, and a housing. The detector has two elements located side-by-side and the lens array has a plurality of lenslets...
5886632 Passive infrared motion detection circuit having four comparators  
A simplified analog passive infrared motion detection circuit operates using only four operational amplifiers. A first amplifier is used as part of a bandpass amplifier circuit, a second is used...
5877499 Composite fresnel lens having array of lens segments providing long narrow detection range  
A composite Fresnel lens useful in an infrared passive detection system includes an array of Fresnel lens segments having a given vertical centerline and a curvature of a given radius. The Fresnel...
5877500 Multichannel infrared detector with optical concentrators for each channel  
The present invention comprises a system and method for detecting multiple wavelength bands of infrared radiation. The present invention incorporates an optical concentrator or "optical funnel" to...
5864139 Confocal microspectrometer system  
A microscope for use in transmissive and reflective infrared spectral analysis of a sample positioned on a sample plane. The microscope uses a collimated beam for infinity correction. A collimated...
5859435 Content measuring apparatus for plant leaf  
A content measuring apparatus has a light source for irradiating near infrared light on a leaf, a light intensity detecting device for receiving transmitted light from the leaf, an operation means...
5841589 Panoramic optics assembly having an initial flat reflective element  
An optics assembly for observing a panoramic scene comprises a plurality of optical elements. A flat reflective element redirects light from a panoramic scene. A plurality of refractive elements,...
5833596 Endoscope for imaging infrared emissions within the range of 2 to 14 microns  
Endodiagnostic apparatus and methods by which infrared emissions of 2 micrometers and above may be visualized in the form of encoded images to permit differential analysis. The endoscopic...
5831762 Imaging sensor having multiple fields of view and utilizing all-reflective optics  
An imaging sensor has multiple fields of view of the same scene that may be selected by the user for viewing through mechanical movements. The imaging and selection are accomplished entirely with...
5790040 Battery-operated security system sensors  
A security system sensor has a lens lying in a forward plane that focuses received energy to a focal point that is internal to the sensor. A sensing element is located at or near the focal point...
5783827 Scanning earth horizon sensor  
An earth horizon sensor on board an orbiting spacecraft is designed to produce four (4) scans across the earth at geosynchronous altitudes using only two non-visible wavelength (infrared)...
5780854 Structure for an infrared photoelectric device  
A structure for an infrared photoelectric device including a casing covered by a face panel, a circuit board with an infrared photoelectric element, a lens disposed above the circuit board, an...
5763882 Low cost night vision camera  
A low cost infrared camera (1) for night vision. The camera (1) is disposed within a housing (2) having an infrared transmissive window (6) disposed at an input aperture (5) thereof. A compact...
5757004 Motion detector with external range adjustment  
A motion detector with a lens-sensor mounting and adjustment arrangement that permits a user to adjust the effective range of the motion detector without altering the sensor's sensitivity...
5751473 Dual waveband optical system  
A dual-band optical system 10 preferably for use in the thermal infrared waveband provides initial detection of a target in a first waveband (8-12 μm) having a wide field of view and discriminated...
5742055 Device for sensing position of human body using infrared sensor  
The present invention relates to a device for sensing the position of a human body using an infrared ray sensor including: a light focusing device for converging an infrared ray emitted from the...
5739533 Thermal radiation detector having a spectral responsivity not dependent on wavelength  
A radiation detector has a film-like pyroelectric element which has a fan shape, and two support plates which are made of an electrical and thermal insulating resin and adhered to the both ends...
5729019 Split field-of-view uncooled infrared sensor  
An occupancy sensor having a primary infrared radiation sensor and a secondary infrared radiation sensor in an integrated vacuum package having a window that provides separate fields of view to...
5717203 Infrared motion detector with 180 ° detecting range  
A detector assembly for giving an infrared sensor a detecting range of about 180° includes a semi-cylindrical focusing lens and a pair of reflective mirror surfaces which is positioned behind the...
5711755 Endoscopic diagnostic systems and associated methods employing infrared radiation  
Endodiagnostic apparatus and methods by which infrared emissions within the range including 2 to 14 micrometers may be visualized in the form of encoded images to permit differential analysis. The...