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7317182 Backlight wedge with encapsulated light source  
A backlight may include a light guide and a light input. The light guide may have a light reflection surface and a light emission surface. The light input may include a diverging wedge having a...
7071458 Optical element, optical transmission unit and optical transmission system  
An optical element comprising a transparent body 10 including a first end face 12; a second end face 14 forming a prescribed angle to the first end face; and a third end face 15 having a...
7057196 Device and method for detecting the edge of a recording material  
A device and a method for detecting the edge of a recording material, in particular, a printing plate, in an exposer for recording printing originals includes an exposer having an exposure drum...
6819861 Laminated optical waveguide array, beam collecting device and laser emission device  
A beam collecting device and a laser emission device are disclosed incorporating a laminated optical waveguide array and refraction means therein. The laminated optical waveguide array is composed...
6646571 Encoder having a slidably engaged floating aperture piece  
An encoder includes a housing, a light source coupled to the housing, and a light sensor coupled to the housing and positioned to receive a light beam from the light source. The encoder also...
6476378 Imaging apparatus and method of same  
An imaging apparatus optically extruding parts of a screen image and outputting the extruded images from surfaces different in dimension from the screen surface, wherein a set of image guides...
6285495 Optical transmission element for capturing and redirecting incident radiation  
An optical element comprising a plurality of transparent layers comprising one or more passive layers (11) and one or more active layers (12) wherein said passive layers (11) facilitate the...
6163080 Anti-pinching system based on modification of the light conductivity of an optical fibre for automatic car windows  
A system which takes direct action to reverse the rotation of the window driving motor includes an optical fiber conductor arranged inside a substantially prismatic profile forming loops at the...
6127675 Linear illumination device  
A linear illumination device of the present invention includes: a guide made of a light transmitting material extending in a first direction, having a side face and at least one end face; at least...
6127674 Uneven-surface data detection apparatus  
There is provided an uneven-surface data input apparatus capable of obtaining a fingerprint image which is seldom distorted, in which it is unnecessary to conduct image processing when the...
6094261 Method and apparatus for distinguishing fiber-optic cables  
A method and apparatus for distinguishing various fiber-optic cables from each other in an installation where cables are grouped together, the apparatus comprising a light source for generating a...
6081351 Image reading apparatus  
It is an object to provide an image sensor which can guarantee a good picture quality by reducing an illuminance deviation and can effectively realize a miniaturization of an apparatus. There is an...
5969343 Linear illumination device  
A linear illumination device of the present invention includes: a guide made of a light transmitting material extending in a first direction, having a side face and at least one end face; at least...
5859429 Optical system with test/calibration  
Optical systems are provided. In one embodiment, the optical system includes a detector for detecting a light signal. A light signal gatherer and guider is optically connected with the detector for...
5847834 Expandable, continuous illumination source for a web inspection assembly and method  
An illumination system (20) and method for use with an optical web inspection assembly (21) to identify surface defects on a moving material web (25). The illumination system (20) includes an...
5828448 Method and apparatus for distinguishing between defects in an optical fiber coating  
The present invention provides an optical detection system for detecting defects in an optical fiber. The system includes a light source for coupling light into the secondary coating of an optical...
5818033 Reading device featuring at least two spaced light emitting elements  
A reading device for illuminating a light beam emitted from at least two light emitting elements of different light emission wavelength ranges to an original through a light conductor prevent...
5804818 Coated internally reflecting optical element  
An optical element having a light carrying medium through which light can propagate by total internal reflection. The light carrying medium has at least one surface. A layer is positioned adjacent...
5796472 Optical translucency indicator for measurement of air filter dirtiness, liquid level, thickness, and other parameters  
An optical detector for determining the degree of translucency of a medium includes an elongate collector that gathers radiant energy along its length and transmits the gathered energy to its ends....
5786891 Method and apparatus for detecting defects in an optical fiber coating  
The present invention provides an optical detection system for detecting defects in an optical fiber. The system includes a light source for coupling light into the secondary coating of an optical...
5694209 Laser beam analyzer  
A device for sampling a section of a laser beam using an elongated reflective element that is moved in a main direction that corresponds to the direction of elongation of the element and in a...
5672864 Light integrator  
A light integrator in a first aspect, comprises: an elongated tapered solid core having first and second ends and an elongated surface therebetween, down which a decreasing total proportion of...
5654539 Laser doppler optical sensor for use on a monitoring probe  
A laser Doppler probe for measuring blood flow, comprising a transmit fiber, and one or more receive fibers, which are configured to direct and receive energy orthogonal to the fiber axis.
5585915 Light detecting device  
A light detecting device for reliably detecting weak luminescing at a random position in a predetermined spatial area. The light detecting device has a fluorescent fiber containing a fluorescent...
5581499 Micro information storage system  
A device for optically storing and retrieving information incorporating a cadmium fluoride crystal. Using focused ionizing radiation, patterns can be formed in the crystal by the creation of color...
5453828 Method of optical sampling  
The beam power of a laser beam is sampled by locating an elongate radiation conductive path across and substantially normal to the axis of the beam and detecting the light emitted at at least one...
5384460 Encoder with a light emitting editing wheel  
An encoder with a light emitted editing wheel comprises an editing wheel defines a wheel body and a hole in its middle portion. The editing wheel is made from transparent material, such glass,...
5274228 Linear light source/collector with integrating cylinder and light pipe means  
An improved linear light source or light collector for a film scanner comprising an elongated, cylindrical light integrating cylinder enclosed by first and second end walls and a longitudinal,...
5235193 Device for identifying a container carrier for an automatic analytical apparatus with faceted light guiding plate  
A device for identifying a container carrier for an automatic analytical apparatus is described. The carrier has an array of fields on a flange, some of the fields being transparent and the other...
5210634 Light beam scanner  
A light beam emitted from a light source such as a semiconductor laser, is irradiated onto a recording section such as a photosensitive drum, through a scanning section composed of a rotary...
5196714 System for X-Y alignment and tracking of moving targets having angular displacement with fiber optic sensing surface  
A system and method for X-Y alignment and tracking of moving targets having angular displacement with a fiber optic sensing surface comprising a sensor (5, 6, 17) comprising a sensing array (5) for...
5191219 Information processing apparatus including a planar optical waveguide  
An information processing system uses a planar optical waveguide as a shared medium for a plurality of its subsystems. To this end, each subsystem is provided with a light emitting diode to...
5166532 Edge sensor for a moving strip of material  
An edge sensor for a moving web of material includes an elongated light source on which is mounted a receiver containing an active receiver element made of a plastics material with light-absorbing...
5151592 Flare minimization in split V-roof mirror collector  
A light collector collects and detects light emitted from a photostimulable phosphor sheet in a photostimulable phosphor imaging system. The collector includes a vertical mirror extending the width...
5132530 Light detector based on fluorescent dyes  
A light detector consists of a plate-like light-absorbing body and at least one optical waveguide connected thereto. Both parts of the light detector contain a fluorescent dye, whereby the...
5122656 Fiber optic input device having a light transmissive body with parallel grooves  
A sensor which comprises a light transmitting body having first and second opposing surfaces, the first surface having a first plurality of parallel grooves therein and wall members spacing the...
5105079 Split V-roof mirror collector having improved collection efficiency  
A light collector collects and detects light emitted from a photostimulable phosphor medium such as a phosphor sheet in a photostimulable phosphor imaging system. The collector includes a vertical...
5103088 Optical sensor device using a dielectric transparent spherical-shell section  
An optical sensor device for recognizing optical irradiation and detecting its direction is constructed as a spherical-shell section from dielectric, optically transparent material. The irradiation...
5085507 Device for three dimensional tracking of an object  
A device for tracking an object (12) in three dimensional space is provided which comprises a fiber optic sensor array (14). Fiber optic sensor array (14) comprises a row plane (16) and a column...
5070237 Optical measurement and detection system  
An optical inspection system uses a fluorescent optical fiber to receive detection light and generate fluorescent light which then travels the length of the fiber and is detected at one or both...
5061064 Detector of the arrival angle of laser pulses, especially for tanks  
A detector of pulses of electromagnetic radiation, especially of laser pulses, comprising as sensor at least one cylindrical body of material translucent to the electromagnetic radiation having a...
5051576 Finger surface image enhancement having a liquid layer on the finger touching surface of the platen  
A layer of liquid, such as water, on the finger touching surface of a platen provides an image in a optical fingerprint imaging system which assures valley and ridge definition and continuity by...
5045684 Light detection with waveguide having fully and partially reflecting sides  
A low-cost wide-band light detection system is disclosed using a light conducting member which is a long dielectric waveguide having a phototransistor at a far end. The waveguide or light...
5034616 Device for optically scanning sheet-like documents  
For automatic recognition of the authenticity of items in sheet form such as bank notes, for example in an automatic service machine, the transparency of each bank note is examined in predetermined...
4958067 Method and apparatus for optically detecting the location of a control object in a control panel recess  
An optical operating device is provided on an operation panel of an audio system or the like, including a recess formed on the operation panel; several light receiving portions are formed on a...
4936681 Optical sensor  
An optical sensor for converting a physical value into an electric output signal comprises a light source from which a beam of light rays is coupled into a first surface of a photoconductive body....
4928005 Multiple-point temperature sensor using optic fibers  
A multiple-point temperature sensor, with optic fibers, uses the effect of variation in the birefringence in a birefringent optic fiber as a function of temperature. This sensor has a plane...
4924087 Optic fiber buffer defect detection system  
A fiber optic buffer defect detection system including a laser, for illuminating the fiber buffer with a collimated beam of light energy, and detectors for detecting any scattering of the beam,...
4924085 Uneven-surface data detection apparatus  
An uneven surface data detection apparatus for detecting an uneven surface, such as a human finger, having projected portions and recessed portions. A transparent base having upper and lower...
4906845 Optical sensor for detecting liquid medium  
An optical sensor comprises a probe (10) and an annular optical element (13) coupled optically to a pair of optical fibres (18). Light transmitted down one fibre is reflected around the element...
Matches 1 - 50 out of 109 1 2 3 >