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| Number | Title | Issue Date |
| 7349133 | Image reading apparatus An image reading apparatus that detects failure in the white LEDs constituting a white LED array. Failure in the white LEDs is detected by comparison between a prescribed current threshold and the current running in the LED array detected by an image reading apparat... | 03/25/2008 |
| 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 narrow end and opposing side surfaces extending to the narrow end. A lig... | 01/08/2008 |
| 7302156 | Optical system An optical system including at least one optical fiber having a core and cladding, the at least one optical fiber having a cross section defining a circumference, the at least one optical fiber having at least one light scattering discontinuity at least one location... | 11/27/2007 |
| 7182492 | License plate system having enhanced illumination A license plate system for motorcycle, car, truck or boat including a row of lights supported along an edge of a clear plastic channel so that light from the row enters the interior of the pane through an edge surface of the panel. The front surface of the panel has... | 02/27/2007 |
| 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 holding the plate, and an exposure head moved axially along the drum and... | 06/06/2006 |
| 6917452 | System and method for providing uniform illumination as received by an optical detector The present invention is directed to a system and method which capture images by use of an optical detector. The system and method illuminate a scan region utilizing a bulb that emits light of greater intensity near its extremities than at its center to provide imag... | 07/12/2005 |
| 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 of a plurality of plate-like optical waveguides made of a material ha... | 11/16/2004 |
| 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 includes a wheel having opaque and transmissive sections which m... | 11/11/2003 |
| 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 formed by bundles of optical fibers placed on the surface of th... | 11/05/2002 |
| 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 transmission of electromagnetic radiation in a substantially unal... | 09/04/2001 |
| 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 points where said conductor enters and exits from a series of... | 12/19/2000 |
| 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 one light emitter for allowing light to enter interior of ... | 10/03/2000 |
| 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 fingerprint image is inputted. The uneven-surface data detection a... | 10/03/2000 |
| 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 high-intensity, reasonably highly collated, colored, and pu... | 07/25/2000 |
| 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 image sensor constructed by, an illuminating apparatus co... | 06/27/2000 |
| 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 one light emitter for allowing light to enter interior of ... | 10/19/1999 |
| 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 gathering the light signal and guiding the light signal t... | 01/12/1999 |
| 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 elongated light source (26) having an elongated aperture (46) a... | 12/08/1998 |
| 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 fiber at a preselected angle with respect to the longitudi... | 10/27/1998 |
| 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 irregularity of illumination on the original without providing ... | 10/06/1998 |
| 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 the surface and is of a porous first material of sufficien... | 09/08/1998 |
| 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. A sensor is positioned in proximity to at least one of th... | 08/18/1998 |
| 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 fiber at a preselected angle with respect to the longitudi... | 07/28/1998 |
| 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 direction perpendicular to the main direction. This sampling de... | 12/02/1997 |
| 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 light can propagate by total internal reflection at the elongated ... | 09/30/1997 |
| 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.... | 08/05/1997 |
| 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 coloring matter and a flat or curved concentrator having a p... | 12/17/1996 |
| 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 centers and/or intrinsic luminescence quenched areas. The ... | 12/03/1996 |
| 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 of the ends of the radiation path, the radiation at the end... | 09/26/1995 |
| 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, acrylic etc. The editing wheel is mounted on a shaft member an... | 01/24/1995 |
| 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, cylindrical side wall, all having a diffusely-reflecting inter... | 12/28/1993 |
| 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 fields being opaque. The device includes an electro-optical... | 08/10/1993 |
| 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 polygonal mirror. In a predetermined position in a plane formed b... | 05/11/1993 |
| 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 providing an indication of the position of a beam of radi... | 03/23/1993 |
| 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 broadcast information pulses into the shared medium and a photode... | 03/02/1993 |
| 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 properties. The receiver element comprises an elongated li... | 11/24/1992 |
| 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 of the phosphor sheet; and a V-roof mirror having upper a... | 09/29/1992 |
| 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 irradiated light is converted into a fluorescence radiation. This ... | 07/21/1992 |
| 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 first grooves from each other, the second surface having a se... | 06/16/1992 |
| 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 mirror extending the width of the phosphor sheet; and a V-... | 04/14/1992 |
