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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...
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7535333 |
Method for monitoring the contact resistance of a wiper
A method for monitoring a the contact resistance (R s ) 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...
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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...
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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 a...
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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...
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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...
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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...
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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...
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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...
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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,...
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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...
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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.
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 in...
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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...
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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....
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 to...
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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.
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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4423403 |
Transparent conductive films and methods of producing same
Cadmium-tin oxide films are prepared by d-c reactive sputtering of Cd-Sn alloys in Ar-O 2 mixtures. The films obtained have low resistivity of the order of 10 -3 -10 -4 Ω-cm and high optical...
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4405915 |
Photoelectric transducing element
A photoelectric transducing element comprising (a) a substrate; (b) first electrode provided on said substrate; (c) first contact layer to form an ohmic contact with said first electrode with...
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4388606 |
Sequential photoflash array and fabrication employing radiation-activated switches
A self-sequencing multilamp photoflash array responsive to a low voltage source includes radiation-responsive switches having a pair of electrical conductors spaced by a switch paste comprising a...
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4376285 |
High speed optoelectronic switch
An optoelectronic switch has been formed from a semi-insulating substrate of indium phosphide doped with a deep level impurity and disposed intermediate a microstrip transmission line. One...
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