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Match Document Document Title
8563930 System and method of modulating electrical signals using photoconductive wide bandgap semiconductors as variable resistors  
A system and method for producing modulated electrical signals. The system uses a variable resistor having a photoconductive wide bandgap semiconductor material construction whose conduction...
8466425 Chalcogenide glass ionizing radiation sensor  
A chalcogenide glass radiation sensor comprising a chalcogenide glass layer coupled to at least two electrodes and a metal source, and a method using the same are disclosed. The chalcogenide glass...
7929580 Inexpensive terahertz pulse wave generator  
Pulses of signals in the terahertz region are generated using an apparatus made up of a mode-locked semiconductor laser diode with a short duty cycle that is optically coupled to a biased Auston...
7667567 High precision voltage measuring passive network  
A voltage divider for high precision voltage measurement has one or more pair of potentiometers. The wipers of each pair of potentiometers are ganged so that the sum of their resistances relative...
7605013 Photo-detector and related methods  
An apparatus comprising at least one multilayer wafer which includes a device layer adjacent to a barrier layer, and the device layer includes at least two photoconductive regions separated by an...
7535333 Method for monitoring the contact resistance of a wiper  
A method for monitoring a the contact resistance (Rs) of the wiper of a sensor for a variable quantity, with a potentiometer (2), in which the position of the center tap (3) determines the value...
6756585 Process for manufacturing a housing for sensor elements, sensor and use thereof  
For manufacturing a housing for sensor elements, a pliable material is introduced into the environment of the sensor element (2) by an injection molding process. In a first process step, the...
6743988 Optically controlled switches  
An optically controlled switch includes first and second electrodes, a channel extending between the electrodes, and a light source positioned to illuminate the channel. The light source produces...
6617958 Optical potentiometer  
An optical potentiometer comprised of a specialized circuit board and a movable reflector device capable of traveling left and right stably on the specialized circuit board. The movable reflector...
6292089 Structures for temperature sensors and infrared detectors  
A structure for temperature sensors and infrared detectors. The structure is built-up on a substrate that includes a thermistor layer, wherein the resistance of the thermistor layer is temperature...
6144285 Thermal sensor and method of making same  
A two level microbridge infrared thermal detector having an upper detector planar section (a) comprising a temperature responsive detector of an oxide of vanadium having a high TCR and a...
6094127 Infrared bolometer and method for manufacturing same  
The inventive three-level infrared bolometer includes an active matrix level, a support level, a pair of post and a absorption level. The active matrix level includes a substrate having an...
5966590 Method for manufacturing thermal-type infrared sensor  
In a method of manufacturing a thermal-type infrared sensor including a thermosensitive part, a bolometer material is formed as the thermosensitive part and is subjected to post-processing to...
5939971 Infrared bolometer  
A three-level infrared bolometer including an active matrix level, a support level, posts and an absorption level. The active matrix level includes a substrate having an integrated circuit,...
5900799 High responsivity thermochromic infrared detector  
A high responsivity thermochromic infrared detector which has an operating temperature that is established on the steepest part of the phase transition curve and is maintained there while the...
RE36136 Thermal sensor  
A two-level IR detector imaging array of high fill-factor design. The upper microbridge detector level is spaced above and overlie the integrated circuit and bus lines on the substrate surface below.
5818322 Silicon photosensitive element  
A groove is formed on the surface of a silicon substrate by way of etching. A silicon device for a driver of a photosensitive element is formed on the surface of the substrate where the groove is...
5798684 Thin-film temperature sensor  
A thin-film temperature sensor with a robust bridge structure and a stable electric characteristic, as well as a method of manufacture thereof, is provided. Over the substrate 1 with the cavity 13...
5629665 Conducting-polymer bolometer  
The invention is an apparatus and method for making a polymer bolometer. The apparatus consists of a current supply and current receiving paths affixed to a substrate. Bridging the current supply...
5581232 Ultrasonic wave reception apparatus and obstacle detection apparatus  
An obstacle detection apparatus includes a rubber-like elastic body interspersed with electroconductive particles, and means for applying a voltage to the rubber-like elastic body to obtain an...
5343186 Variable resistor having the capacity to produce a fader start signal output  
A variable control fader with provisions for outputting a fader start signal upon movement of the fader from a position corresponding to the faders maximum attainable resistance value. This fader...
5332918 Ultra-high-speed photoconductive devices using semi-insulating layers  
An ultra-high-speed photoconductive device is described which comprises a homoepitaxial semi-insulating III-V layer, or body, upon which ohmic/conductive contacts, or strips, separated by a small...
5309132 Technique for trimming photoresistors and trimmed photoresistors  
A technique for trimming photoresistors to change relatively high tolerance parts to relatively low tolerance parts by blocking out a portion of the photoactive area, and the so-trimmed...
5220189 Micromechanical thermoelectric sensor element  
A thermoelectric sensor element that is adapted to respond to thermal radiation is capable of manufacture into a sensor array on a single crystal semiconductor means, such as silicon. An...
5220188 Integrated micromechanical sensor element  
A sensor element that is adapted to respond to radiation, and which is adapted to the manufacture of a sensor array is manufactured into a single crystal semiconductor means such as silicon. An...
5192631 Variable electroconductivity material  
A variable electroconductivity material characterized by being obtained by formulating (a) an electroconductivity variation imparting agent comprising a substance which is caused by light or heat...
5130690 Photoconductor  
A photoconductor which has an active layer including channels of ultrafine wire structures each having cross sectional lengths comparable to an electron de Broglie wavelength is provided. The...
5097121 Beveled edge impurity band conduction detector  
An impurity band conduction (IBC) detector having a substrate and a thin layer IR active region is provided with a beveled edge for increasing the quantum efficiency of the detector. The edge of...
5091765 Photoconductive cell with zinc oxide tetrapod crystals  
A photoconductive cell comprises a photodetector section which consists of an aggregate of tetrapod-like zinc oxide whiskers. Each whisker consists of a core and needle-shaped crystals extending...
4973935 Infrared detector  
An infrared detector includes a high resistance substrate, a compound semiconductor disposed on the substrate, a pair of electrodes disposed on the compound semiconductor, and a plurality of...
4924285 Monolithic multichannel detector amplifier arrays and circuit channels  
An integrated, planar, single-channel, photodetector-amplifier device is disclosed. The single-channel device includes a photodetector layer and an amplifier layer above the photodetector layer....
4839510 Optical sensor including shortcircuit protection having notched electrode regions  
In an optical sensor, there is a risk that a short-circuit occurs in a gap between opposite electrodes on a photoconductive body. A pair of band-shaped electrodes each having a width of "W" are...
4835507 Photosensor array for image processing apparatus  
A photosensor array for use with an image processing apparatus has a plurality of photosensors disposed in an array. Each photosensor includes a substrate, a photoconductive layer formed on the...
4818174 Compact robot arm member relative movement sensor  
Apparatus for determining when the hand of a robot arm, resiliently mounted on a robot arm body, strikes or makes contact with an object that impedes or limits its movement, employs an optical...
4818173 Robot arm member relative movement sensing apparatus  
Apparatus for determinig when the gripper or hand of a robot arm, resiliently mounted on a robot arm body with a set of highly compliant springs, strikes or makes contact with an object that...
4796000 Optical potentiometer  
Optical and digital potentiometers and controllers. In one embodiment of the invention, a paddle slider is maintained within a housing along with a light source and sensor. The amount of light...
4788522 Image sensing  
An image sensing device includes a plurality of photoelectric elements arranged in the form of a single array and divided into n number of blocks each of which includes m number of the...
4775435 Method of manufacturing a liquid level probe  
A probe for measuring the level of a liquid and its method of manufacture are disclosed. A conducting circuit whose resistivity depends on temperature comprises a track applied to a substrate in...
4727349 Depleted channel photoconductor  
Photoconductors with channels that lie in the surface depleted region of a GaAs structure are described. These devices have nanoampere bias current, and exhibit photoconductive gain. In contrast...
4724338 Generation of narrow-band, delayed electrical pulses  
Narrow-band electrical pulses which are delayed with respect to a first direct pulse produced are generated by a method in which space charges are pulsed in an electric field in a dielectric.
4636794 Photo-conductive element operative in the microwave region and a light-steerable antenna array incorporating the photo-conductive element  
A steerable microwave antenna array having directional characteristics, which includes at least two antenna elements spaced from one another by a predetermined distance, each antenna element...
4626883 Textured crystal picosecond photoresponsive element  
Picosecond response photoconductors and photoresponsive elements can be provided that retain high carrier mobility and yet have short lifetime by providing on a crystal mismatched substrate a...
4553928 Switching device for photoflash unit  
An improved multiple flashlamp array is disclosed having a plurality of low voltage type lamps fired individually and in sequence by means of a plurality of static solid switching devices capable...
4523090 Light controlled fader  
A light controlled fader for providing an analog voltage output of approximately linear proportion to the position of a slider-type control mechanism. The fader includes coacting first light...
4494132 Semiconductor opto-electronic switch  
An opto-electronic switch component which comprises two regions of good conductivity separated by a gap on a normally non-conductive substrate. When the gap is irradiated, the conductivity of the...
4490709 InP:Fe Photoconducting device  
A photoconducting device fabricated from Fe-doped, semi-insulating InP crystals exhibits an exponential decay transient with decay time inversely related to Fe concentration. Photoconductive gain...
4487574 Switching device for photoflash unit  
A multiple flashlamp array is disclosed having a plurality of lamps fired individually and in sequence by means of a plurality of static solid switching devices capable of reliable actuation by...
4482881 Thick extended contact photoconductor  
A semiconductor photoconductor having low impedance nonmetallic contacts is disclosed which has increased detectivity over prior art photoconductor structures. The improved photoconductor has...
4462019 Photosensitive semiconductor resistor  
A photosensitive semiconductor resistor has a monocrystalline semiconductor body of one conductivity type which, on two oppositely located surfaces, is provided with an anode contact and with a...
4431913 One-dimensional scanner  
A one-dimensional scanner for use in an image reader in which the pitch of the electrode elements is reduced to increase the image density. An upper electrode array has a plurality of upper...

Matches 1 - 50 out of 200 1 2 3 4 >