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| Number | Title | Issue Date |
| 6847472 | Optical scanning device image forming apparatus and optical scanning method A coupling lens couples a light flux from a light source to form a parallel light flux, a convergent light flux, or a divergent light flux. An optical deflector includes a deflective reflection surface, which deflects the light flux from the coupling lens at a unifo... | 01/25/2005 |
| 6842274 | Light scanner and image formation apparatus therewith A light scanner has a light source 1 of a two-dimensional array consisting of a plurality of light source elements, a coupling lens system 2 for collimating a light flux from the light source 1, a shaping lens system (cylindrical lens 4 a... | 01/11/2005 |
| 6836364 | Beam steering and scanning device A beam steerer/scanner (50) includes a dynamically balanced bi-index rotating element (52). The element is comprised of a pair (52A, 52B) of transparent hemispheres which are of the same size and shape, are made from two materials of equa... | 12/28/2004 |
| 6833942 | MEMS enclosure A low-cost, high-performance, reliable micromirror package (300) that replaces the ceramic substrate in conventional packages with a printed circuit board substrate (30) and a molded plastic case (33), and the cover glass with a window (36 | 12/21/2004 |
| 6822773 | Scanning type image display optical system, scanning type image display apparatus, and image display system A scanning type image display optical system of the present invention comprises: a reflecting surface; an optical scanning unit which forms a two-dimensional image on the reflecting surface by light scanning; and an ocular optical system which leads light from the t... | 11/23/2004 |
| 6818468 | Method and apparatus for incorporating a low contrast interface and a high contrast interface into an optical device Methods and apparatuses for incorporating low contrast and high contrast interfaces in optical devices. In one embodiment an insulator is disposed proximate to a plurality of regions of a semiconductor including regions through which an optical beam is directed. Hig... | 11/16/2004 |
| 6817526 | Optoelectronic device An optoelectronic device for detecting markings provided with contrasting patterns includes a transmitter for emitting light rays and a receiver for receiving light rays, a deflection unit for guiding the transmitting light rays periodically across a monitoring rang... | 11/16/2004 |
| 6815656 | Integrated optical cross-connect amplifier A vertical cavity optical amplifier can tilt to reflect light in different directions. An array of such amplifiers can serve as an optical cross-connect. ... | 11/09/2004 |
| 6801351 | Optical scanning device, line-image forming optical system therein, imaging adjustment method in the device and image forming apparatus A light source emitting a light flux; a coupling optical system couples the light flux from the light source to a subsequent optical system by transforming it into a parallel light flux, an approximately convergent light flux or an approximately divergent light flux... | 10/05/2004 |
| 6801350 | Methods and apparatus for optical disk drives using optical scanning Apparatus for scanning a rotating optical disk, including: a scanning assembly for directing a light beam toward the disk surface and causing the beam to traverse the surface; a focusing lens unit disposed in the path of the beam to focus the beam at the surface; an... | 10/05/2004 |
| 6798548 | Apparatus for rotating a laser Disclosed is a rotational laser apparatus capable of setting an obliquity without requiring a high accuracy light receiver or a complex optical system for separating different polarized fluxes. The rotational laser apparatus comprises a plurality of reflected... | 09/28/2004 |
| 6795224 | Optical scanning apparatus and image forming apparatus using the same An optical scanning apparatus includes a deflector for deflecting a beam emitted from a light source, and scanning optical system having at least one scanning lens for causing the beam deflected by the deflector means to be imaged on a surface to be scanned. At leas... | 09/21/2004 |
| 6795221 | Scanned display with switched feeds and distortion correction A display or image capture apparatus includes a scanning assembly that scans about two or more axes, typically in a raster pattern. A plurality of light sources emit light from spaced apart locations toward the scanning assembly and the scanning assembly simultaneou... | 09/21/2004 |
| 6791727 | Method of scanning information-bearing elements Method of scanning information-bearing elements by providing a scanning beam focused to a spot at a focal location, moving said scanning beam relative to information-bearing elements, detecting light reflected from said information-bearing elements to provide a sign... | 09/14/2004 |
| 6788444 | Method and apparatus for optical scanning capable of reducing a dot position displacement and a dot diameter variation An optical scanning apparatus including a pulse modulation mechanism, a laser light source, a light deflecting mechanism, and a scan-imaging device. The pulse modulation mechanism performs a pulse modulation to input image data to output pulse-modulated image data. ... | 09/07/2004 |
| 6785028 | Optical scanning device having a temperature compensation unit In an optical scanning device and image forming apparatus according to the present invention, a light source emits a light beam, and a scanning optical unit deflects the light beam from the light source and focuses the deflected light beam to form a light spot on a ... | 08/31/2004 |
| 6785029 | Optical scanner An optical scanner having a simple structure in which the light quantities of a plurality of light beams are not varied by differences in polarization direction among the light beams. The optical scanner scans a surface by means of a plurality of light beams in whic... | 08/31/2004 |
| 6781693 | System and method for optical multiplexing and/or demultiplexing Improved methods and systems for routing and aligning beams and optical elements in an optical device include a multiplexing device and/or a demultiplexing device, which includes an optical alignment element (OAE). The OAE can be configured to substantially compensa... | 08/24/2004 |
| 6774445 | Actuator The invention aims at suppressing an amount of deformation of a central portion of a movable part in a micro-miniature semiconductor actuator. A boundary portion is provided between a central portion and an edge of a movable part which is axially supported in a rota... | 08/10/2004 |
| 6768568 | Scanner having a light beam incident position adjusting device A scanner is provided that has a light-beam emitter for emitting a light beam, a light-beam deflector for deflecting the light beam to scan a scanning surface, a photo-detector provided at a position outside an image-forming scanning range of the scanning surface to... | 07/27/2004 |
| 6767685 | Plate-making method, plate-making apparatus used in such plate-making method, and image recording material A plate-making method is capable of recording a sharp image on a photosensitive plate, and is applicable to a process operation executed in a light room, while adverse influences caused by laser flares can be hardly received. Ultra-short pulse laser light emitted fr... | 07/27/2004 |
| 6757088 | Laser scanning unit A laser scanning unit disclosed in the present invention is intended to form an image on a photo-sensitive drum by generating laser beams in a facsimile unit, a copying machine and a printer using laser beams. The laser scanning unit includes a collimated lens refor... | 06/29/2004 |
| 6757051 | Projection optical system, manufacturing method thereof, and projection exposure apparatus A projection optical system forms an image of an object in a first plane onto a second plane. The projection optical system has an optical element group including at least one refractive member and plural reflective members, and a plurality of lens-barrel units hold... | 06/29/2004 |
| 6753985 | Optical scanning device An optical scanning device has an electric motor and a rotary polygon mirror driven by the electric motor which are received in a dust proof chamber equipped with a cooling fin arrangement which ... | 06/22/2004 |
| 6750997 | Scanning device and image forming apparatus A laser beam reflected off a polygon mirror travels below a beam portion and is reflected off a reflection mirror. The laser beam reflected off the reflection mirror is emitted through an opening formed directly below the beam portion. The beam portion is provided a... | 06/15/2004 |
| 6750969 | System and method for optical multiplexing and/or demultiplexing Improved methods and systems for routing and aligning beams and optical elements in an optical device include a multiplexing device and/or a demultiplexing device, which includes an optical alignment element (OAE). The OAE can be configured to substantially compensa... | 06/15/2004 |
| 6741359 | Optical coherence tomography optical scanner One embodiment of the present invention is a scanner for a beam of scanning optical coherence tomography (“OCT”) radiation that includes: (a) a source of OCT radiation; (b) a scanner; and (c) scanning optics whose image surface has a negative field curvature. | 05/25/2004 |
| 6735003 | Method and apparatus for reducing artifacts in an imaging system A method and apparatus for reducing artifacts in an imaging system by directing a stream of air onto the beam deflection assembly of the imaging system. An air displacement system, such as a fan assembly or the like, is oriented to direct, a stream of air onto the r... | 05/11/2004 |
| 6731420 | Optical switching apparatus An optical matrix switch station (1) is shown mounting a plurality of optical switch units (15, 17), each of which includes a mirror (29), moveable in two axes, for purpose of switching optical beams from one optical fiber to another. A mirror a... | 05/04/2004 |
| 6704131 | MEMS enclosure A low-cost, high-performance, reliable micromirror package (300) that replaces the ceramic substrate in conventional packages with a printed circuit board substrate (30) and a molded plastic case (33), and the cover glass with a window (36), preferably an... | 03/09/2004 |
| 6700717 | Scanning apparatus and locking device of scanning apparatus The present invention provides a locking apparatus for switching between a lock state and an unlock state of a sliding device in a system. The system has a plug and a socket. The sliding device has a shaft. The locking apparatus has a sliding member, a sp... | 03/02/2004 |
| 6697182 | Optical system of a scan device The present invention relates to an optical system, especially to an optical system which is used in a chassis of a scan device to decrease a thickness of the chassis and further to decrease a volume of the scan device. Five reflecting mirrors are assembl... | 02/24/2004 |
| 6697181 | Optical scanning device, image forming apparatus and optical scanning method A coupling lens couples a light flux from a light source to form a parallel light flux, a convergent light flux or a divergent light flux. An optical deflector includes a deflective reflection surface which deflects the light flux from the coupling lens a... | 02/24/2004 |
| 6693752 | Image forming apparatus An image forming apparatus includes: a pattern generator for generating pattern data for recording a set of test patterns at respective specified positions thereof on the recording sheet; a positional deviation detector for detecting a positional deviatio... | 02/17/2004 |
| 6693561 | System for and method of wide searching for targets in a marine environment An above-the-water system for and method of finding targets, both animate and inanimate, in a marine environment, especially by determining the distance and depth of targets at, above or below the surface of, the water. An optical transmitter transmits in... | 02/17/2004 |
| 6690844 | Optical fiber apparatus and associated method An apparatus and associated method for altering the propagation constant of a region of filtering propagation constant in an optical waveguide. The method comprising positioning an electrode of an electrode shape proximate the waveguide. An altered region... | 02/10/2004 |
| 6687033 | Optical scanning device An optical scanning device has a light transmitter and a light receiver which are arranged in spatial proximity to one another and which each comprise a deflecting device with which a scanning light beam emitted by a transmitter unit is directable along a... | 02/03/2004 |
| 6674954 | Optical element, optical deflection element, optical multiplexing element, and scanning apparatus In an optical element, a propagation direction of incident light beam is largely changed and the direction-changed light beam is derived in a desirable direction without increasing a dimension and manufacturing cost thereof. The optical element includes p... | 01/06/2004 |
| 6665101 | Dual optical module scanning mechanism Two optical modules with reflecting mirrors provide two moving speeds so as to maintain a constant light path between the scanned image and the image sensor. One of the optical modules, the first module, is mounted with two driving wheels. One driving whe... | 12/16/2003 |
| 6661393 | Scanned display with variation compensation A display apparatus includes a scanning assembly that scans about two or more axes, typically in a raster pattern. A light source emits light toward the scanning assembly such that the scanning assembly simultaneously scans more than one of the beams. The... | 12/09/2003 |
