Class 250/214PR - Photosensitive rheostat type

Subclass of Class 250 - Radiant energy
No. of patents: 85
Last issue date: 06/02/2009

Number	Title	Issue Date
7541569	Position sensor utilizing light emissions from a lateral surface of an optical fiber A position sensor includes a light source, and a light-emitting optical fiber having an insertion end that receives a light input from the light source, and a plurality of light emitters disposed along an emitting length of a lateral surface of a lateral surface of ...	06/02/2009
7289228	Optical displacement sensor, and external force detecting device In a six-axis force sensor, each optical displacement sensor comprises an optical module to emit a light and a reflecting member to reflect the light back to the optical module, such that the optical axis of the light from the optical module is aligned to the axial ...	10/30/2007
7257473	Steering column switch system comprising an emergency operation function A steering column switch system includes a device for recording the position of the steering column switch. The device converts the switching position that has been adopted by the steering column switch into a bit pattern. A decoding unit assigns a switching functio...	08/14/2007
7078677	Optical encoder disk having a region that continuously increases in size A code disk, an optical encoder using such a disk and a method thereof are described. The code disk includes a first region on the disk and a second region that is adjacent to the first region. The first region increases continuously in size in a radial direction fr...	07/18/2006
7046378	Device and method for the optical detection of objects A method and a device for the optical distance measurement and for the optical detection of objects with an at least partially specular reflective surface (12) wherein light through the specular reflective surface (12) and a diffuse scattering at a ref...	05/16/2006
6985239	Position-sensing device for 3-D profilometers An apparatus for sensing position data of a light pattern created by a known light source on an object, comprising an optical system for collecting an incident light beam of the light pattern and transmitting the incident light beam to a beam splitter. The beam spli...	01/10/2006
6974949	Position sensor with an optical member of varying thickness A position sensor device that produces a variable output voltage when using a light emitting diode, such as an infrared light emitting diode (IR-LED), and a phototransistor further includes the use of a semi-transparent piece of material having a varying thickness t...	12/13/2005
6946980	Input device An input device comprising a fixed light source, a plurality of light detectors surrounding the light source, and a member comprising reflective surface portions slidably mounted above the light source. When the member is slid from a neutral position to one of a plu...	09/20/2005
6909205	Motor assembly allowing output in multiple degrees of freedom A motor allowing multiple degrees of output freedom includes a stator having an interior surface forming at least a portion of a sphere or curved surface and first and second substantially orthogonally positioned stator coils wound on the interior surface. A rotor i...	06/21/2005
6800839	Device for the optoelectronic detection of switching positions of a switching element An optoelectronic switch position detection apparatus for detecting the switch positions of a switch element movable in switch position steps in a switch direction with each switch position step corresponding to a switch position includes receivers, a light, and a s...	10/05/2004
6777666	Position sensor utilizing light emissions from a lateral surface of a light-emitting structure and two light collectors A position sensor includes a light-source-and-light-emitting structure that emits light from each of an emitter plurality of light emitters. Light from the light emitters is received by light collectors in the lateral surfaces of two light collecting optical fibers ...	08/17/2004
6710322	Device for detecting the position of a selector lever A invention relates to a device for detecting the position of a selector lever, in which the selector lever is connected to a switching device that transmits a signal to an evaluation device for a desired position of the selector lever. In a a device for detecting t...	03/23/2004
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 device has a reflecting mirror suitably disposed in alignme...	09/09/2003
6614016	Method for optically determining the position of a movement element and sensor for implementing the method A method for optically determining the position of a movement element optically includes introducing the light emitted by a light source into an optical conductor which causes attenuation of the light. A light output coupler that moves in accordance with ...	09/02/2003
6586719	Device for detecting the positional change between two bodies moving in relation to one another In an arrangement for detecting the position of two bodies moving relative to one another by a light barrier system, a device is arranged on at least one of the moving bodies such that when the bodies move relative to one another there is a change in the ...	07/01/2003
6573488	Semiconductor position sensitive detector A plurality of resistive regions constituting a resistive region gradually increase in width from one end to the other end and have substantially the same resistivity. If, therefore, this semiconductor position sensitive detector is placed such that charg...	06/03/2003
6188380	Photodetector of liquid crystal display and luminance control device using the same A combination includes a liquid crystal module having a liquid crystal panel forming a front surface, an opposing back surface, and a backlight structured and arranged to transmit light between the front and back surfaces. A light sensor located behind th...	02/13/2001
6152443	Optical device for detecting the printing media in printers An optical device for detecting the printing media in printers includes an element pivoting on two rotation pivots which are incorporated therein a certain distance apart and which are guided in respective independent curved grooves. The pivoting element ...	11/28/2000
6051842	Illumination optical apparatus with optical integrator An illumination optical apparatus includes a light source emitting an illumination light beam, the illumination light beam being directed along a predetermined optical path, a variable optical filter disposed on the predetermined optical path of the illum...	04/18/2000
6025588	Optical analog potentiometer A potentiometer includes a shaft, a base including a printed circuit board on which are fixedly mounted a light emitter and a light receiver arranged opposite to and spaced from the light emitter, the light emitter being supplied with steady voltage to em...	02/15/2000
6015970	Switch assembly incorporating optical control function An optical switch assembly for a two-way radio has electrical and mechanical subassemblies. The electrical portion consists an IR emitter (12) and a pair of IR receivers (14,16) strategically positioned upon a printed circuit board (10). The mechanical po...	01/18/2000
5973320	Optical position sensor An optical position sensor comprises a linearity correction circuit 20 having ROM 22 in which a corresponding table between compensation values and respective rotational angular position of a rotational disk 51. The compensation values are obtained such t...	10/26/1999
5965878	Performing quadrature and push button function utilizing two IR emitter/detector pairs A selector assembly for use in avionic multifunctional displays to perform quadrature and push button functions is described herein. The selector assembly utilizes two sensors and a cylindrical band with an encoder pattern having three distinct zones to s...	10/12/1999
5939712	Absolute position detection within 1 revolution using 3-channel incremental encoders with high resolution index track The quasi-absolute encoder module determines absolute position within one mechanical rotation. The encoder module includes a three channel position encoder and detection circuitry that includes a read-only memory (ROM). There are three channels: A, B, and...	08/17/1999
5716030	Aperture door and calibration source for spacecraft remote sensing devices A spacecraft telescope door (10) adapted for use with remote sensing devices requiring optical and infrared calibration. The door (10) includes a first calibration surface (24) disposed on a first panel (14) for providing a radiant temperature reference f...	02/10/1998
5703357	Methods for wavelength discrimination of monochromatic light beams Methods for wavelength determination of a monochromatic beam are described. The methods involve a detector unit containing at least one variable filter and at least one pair of photo detectors. The detectors have photo sensitive regions with their areas v...	12/30/1997
5670780	Device providing real-time orientation and direction of an object Disclosed is a method and apparatus for providing instantaneous real-time information concerning the attitude of an object. When the speed of the object to which the apparatus is attached is known, a real-time three dimensional velocity vector is determin...	09/23/1997
5665965	Encoder apparatus and methods employing optical and graphical programming Optical encoder apparatus and methods are provided for converting the cyclic motion of an electro-mechanical machine, such as an electric motor, into at least one electrical signal having a predetermined waveform. The apparatus may include at least one ph...	09/09/1997
5650613	Encoder for measuring, position, velocity and acceleration of a shaft An apparatus is disclosed for measuring rotation of a shaft with extreme precision. The apparatus includes a housing enclosing a slotted disk wherein the slot is continuously varying about the circumference of the disk. The housing is cylindrical and incl...	07/22/1997
5573236	Variable sheet guide position sensor An apparatus for determining the dimensions of a stack of sheets in the tray. An optical sensor is arranged so that movement of the sheet guides in a paper tray causes a variably graduated scale to be moved past the sensor. The sensor may either be a tran...	11/12/1996
5572039	Method and apparatus for observing a gap The assessment of clearance conditions in an operating turbine structure has provide difficult to achieve. The invention provides apparatus which enables the clearance between seal fins on rotating blades and adjacent fixed structure, to be observed durin...	11/05/1996
5532473	Reflection shadow sensor with light directing diffusive surface A reflective shadow sensor is disclosed for use in detecting the position of a moving object by directing a flow of light towards that object and detecting the amount of light reflected by a surface of the moving object....	07/02/1996
5466923	Method and circuit for compensating the drift of the output signal of a photoelectric sensor in an electrical remote control apparatus, and remote control apparatus realizing this method and this arrangement Method for compensating an output signal of a photoelectric sensor having a drift due to aging a drift in temperature and a signal in absence of optical excitation (dark signal), in an electrical proportional remote control apparatus of the manipulation o...	11/14/1995
5428217	Annular photodiode for use in an optical rotary encoder The present invention relates to an optical rotary encoder for detecting a position optically. In the optical rotary encoder of the invention, a light beam reflected by a half mirror enters a deflector, whereby it is reflected while being deflected in a c...	06/27/1995
5420413	Actuator with an optical position sensor using a variable magnetic field An actuator having an optical position sensor is disclosed. The sensor remotely provides via a single optic fiber light having two spectral frequencies of about equal intensities to two inversely acting linear optical attenuators that attenuate light in r...	05/30/1995
5389777	Optical displacement sensor utilizing optical diffusion and reflection The invention relates to optical devices, particularly to an optical displacement transducer for detecting a light flow received by a light sensor and subsequent determination of the amount of force applied to an object within which the optical displaceme...	02/14/1995
5376785	Optical displacement sensor utilizing optical diffusion An optical displacement sensor is disclosed for use in robotic applications. The sensor can be used to examine the shape and surface texture of an object. In the embodiment which includes a compressible means of known spring constant, the sensor can be us...	12/27/1994
5359186	Particle detector for detecting ionizing particles having a potential barrier formed in a region of defects A particle detector for detecting ionizing particles incident on the detector which form electron-hole pairs upon penetrating the detector, the detector comprising a substrate, a first electrode formed on the substrate, a body portion supported by the fir...	10/25/1994
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 start signal can be utilized to initiate the activation or ...	08/30/1994
5329114	Actuator with an optical position sensor using linear attenuators An actuator having an optical position sensor is disclosed. The sensor remotely provides via a single optic fiber light having two spectral frequencies of about equal intensities to two inversely acting linear optical attenuators. The attenuated light fro...	07/12/1994

«First «Previous1 2 3 Next»Last»

PatentStorm

Quotables

PatentStorm News

Class 250/214PR - Photosensitive rheostat type