Matches 1 - 50 out of 117 1 2 3 >
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7538916 Document lighting device, image reader, color document reader, and image forming device  
In a document lighting device, each of the plurality of the light emitting elements arrayed in a light source unit is arranged in a vicinity of a focal point on a cross section in a sub-scanning...
7522323 Method and apparatus for printing a pattern with improved focus correction and higher throughput  
A method for printing a pattern from a hologram mask into a photosensitive layer on a substrate, which method includes arranging the hologram mask on a coupling element, arranging the substrate so...
7470070 Optical scanner device and image forming apparatus  
A first wall is installed on a bottom portion of a housing along an outer peripheral thereof orthogonally to the bottom portion. A second wall is installed opposite to the first wall at a...
7463828 Optical channel monitor  
An optical channel monitor is provided that sequentially or selectively filters an optical channel(s) 11 of light from a (WDM) optical input signal 12 and senses predetermined parameters of the...
6888653 Optical scanning device  
In an optical scanning device 1 , a housing 3 has a space 3 a in the inside thereof. A floating rotational plate 2 is housed in the space 3 a , and is caused to float and to rotate by a...
6839172 Enhanced sampling rate in time domain imaging using MOEMS scanning optical delay line  
Electromagnetic waves in wide frequency ranges up to photonics have been used for applications to time-domain imaging (TDI). Realistic time domain imaging requires a rapid optical delay line on the...
6639698 Optical scanning unit with rotatable hologram disc  
An optical scanning unit with a rotatable hologram disc, including a light source, a rotatable hologram disc provided with a plurality of holograms, the holograms being formed concentrically along...
6633423 Scanning optical system and image forming apparatus using the same  
A scanning optical system includes a first optical system for shaping a light beam emitted from a light source and forming the light beam into a linear image elongated in the same direction as a...
6570681 System and method for dynamic optical switching using a diffractive optical element  
An optical crossbar switch system includes: a mask comprising multiple patterns, wherein at least one of the multiple patterns is a diffractive pattern; and a spatial light modulator positioned to...
6570566 Image processing apparatus, image processing method, and program providing medium  
An image displaying configuration is arranged so that objects and scenes at the distance of the fixation point are images in focus, and objects and scenes at distances other than the distance of...
6549348 Optical scanning device  
An optical scanning device is provided, which is compact-sized and lightweight, and, which consumes less power. A movable member of the device is supported on a fixed member via a swing axis...
6529296 Hologram scanner  
A hologram scanner is constructed with a driving source for providing a rotational force, a deflection disk installed at the rotation shaft of the driving source for forming a scanning line, the...
6421180 Apparatus for generating a laser pattern on a photomask and associated methods  
An apparatus for generating a pattern on a photomask includes a beam generator generating a row of spaced apart optical beams, a blocking element downstream from the beam generator in a path of at...
6310701 Method and apparatus for ablating high-density array of vias or indentation in surface of object  
An apparatus and process for ablating an array matrix of high-density vias in a flexible and rigid desired object. The apparatus contains a mirror based x, y scanning repeat positioning and/or a...
6288817 High duty cycle synchronized multi-line scanner  
A scanner includes a single scanning element such as a holographic disc or a polygon mirror and an illumination system that provides a plurality of input beams that are directed to different areas...
6278538 Optical scanner  
The present invention relates to an optical scanner (20) comprising a radiation source (24) for generating a radiation beam, and means (22), (26) for giving the radiation beam a scanning movement...
6181448 Multi-laser scanning unit  
A multi-laser scanning unit (LSU) in which scanning lines incident parallel onto a photoreceptor have the same scanning direction. The multi-laser scanning unit includes: a driving source for...
6181447 Laser scanning unit  
A laser scanning unit (LSU) in a structure capable of radiating heat generated by a light source. The LSU includes at least one light source, a driving source for providing rotational force, and a...
6172780 Laser scanning apparatus  
A laser scanning apparatus including an optical source installed on a main frame, a scan disk which is rotatably installed on the main frame and has diffraction patterns formed thereon for...
6157472 Multi-laser scanning unit  
A multi-laser scanning unit (LSU) in which scanning lines incident parallel onto a photoreceptor have the same scanning direction. The multi-laser scanning unit includes: a driving source for...
6124955 Light beam scanning apparatus  
A light-beam scanning apparatus includes at least two holograms with an optical path length difference ΔΦ along a scanning beam light flux. The path length is measured from a light source to a...
6076732 Two-motor reflection system with hologram  
A holographic spectroscope for a two-motor reflection system for generating scanning patterns in which a light beam is first reflected by a first reflector connected to a first motor electrically...
6057947 Enhanced raster scanning assembly  
An optical assembly utilizing a novel optical element. The assembly includes a tunable source of input radiation; an optical element that can receive at least a portion of the input radiation and...
6046831 Beam scanning apparatus  
A beam scanning apparatus includes an optical source, a beam deflector having a deflection disk which is comprised of a plurality of sectors patterned to diffract a beam emitted from the optical...
6024282 Holographic laser scanning system for omni-directional laser scanning of bar code symbols with 3-D scanning volume having a large depth of field  
A holographic laser scanning system for producing a highly defined 3-D scanning volume for omni-directional laser scanning of bar code symbols therein having a minimum element width on the order of...
6018409 Multi-beam scanning apparatus  
A multi-beam scanning apparatus includes at least two optical sources, a beam deflector having a deflection disc with a plurality of sectors for diffracting and transmitting incident beams, and a...
5995250 Method for manufacturing light beam scanning apparatus  
A method of manufacturing a fixed hologram plate of a light-beam scanning apparatus for diffracting a light incident from a light source portion by a rotatable hologram, scanning by the diffracted...
5936740 Scanner head cartridge and apparatus for processing information capable of mounting such scanner head cartridge thereon  
A scanner head cartridge, which can be mounted exchangeably with an ink head cartridge on a carriage capable of moving the ink head cartridge of an information processing apparatus for recording on...
5929436 Optical sensor including a first and second converging optical system for edge detection  
An original placement table is provided, on which an original sheet is placed. An original scanning device causes a light beam to scan the original sheet placed on the original placement table. A...
5900955 Optical scanning system including two hologram elements  
An optical scanning system includes a laser source, a deflector deflecting a laser beam emitted from the laser source, and at least two hologram elements located between the deflector and an image...
5870220 Portable 3-D scanning system and method for rapid shape digitizing and adaptive mesh generation  
A portable 3D scanning system collects 2D-profile data of objects using a combination of a laser-stripe positioning device and a video camera which detects the images of the laser stripe reflected...
5859715 Diffractive laser scanner  
A scanner (40) is disclosed which includes a source of coherent light (12), a radial holographic deflector (16), a Fθ lens (62), which images a scanned spot onto an image plane (18). The Fθ lens...
5847754 High resolution film scanner/telecine which uses a microlithographic diffuser laminate to aid in the reduction of visibility of surface imperfections in the film  
A high resolution film scanner or telecine uses a microlithographic diffuser laminate (24) arranged adjacent the film. The diffuser diffuses a collimated light beam produced from a light source and...
5838480 Optical scanning system with diffractive optics  
An improved optical system having diffractive optic elements is provided for scanning a beam. This optical system includes a laser source for emitting a laser beam along a first path. A deflector,...
5786911 Optical scanning apparatus utilizing linear polarized beams  
An optical scanning apparatus is equipped with a light source for outputting a scanning beam having a single fixed direction polarization component. A polarization control element is provided for...
5768001 Rotating beam deflector having an integral wave front correction element  
An inclined mirror is provided in a cylindrical housing which has an open end and a closed end. An optical planar glass plate or window is mounted at the open end of the cylindrical housing. A...
5691831 Optical beam scanning device with hologram disc  
A laser source and a converging lens are provided so that a laser beam emitted from the converging lens travels substantially parallel to the surface of a hologram disc. A incidence mirror is...
5684617 Device for treating substrates, in particular for perforating paper  
In a device for perforating cigarette paper strips, a row of adjacent optical elements (28) is disposed in the ray path of a laser beam deflected by a rotating mirror (12). Each of the optical...
5680232 Holographic scanner including a rotary hologram disk between a front hologram and a rear hologram  
A holographic scanner for scanning a surface with a light beam is provided. The holographic scanner includes a light source for emitting light used as the light beam, a front hologram for...
5665942 Optical-scanning system employing laser and laser safety control  
An optical-scanning system including a laser, a multi-faceted, rotational scanning mirror, and system-monitoring laser safety structure operatively and informationally connected respectively to the...
5633736 Scan lens and an optical scanner system incorporating two deflectors  
A scanner configured to provide a two-dimensional scan of a radiation beam moving along the path, including two deflectors and a scan lens located downstream in the path of the beam from the...
5621548 Laser scanner employing a holeless hologon disk and fabrication method therefor  
A method for fabricating a holeless hologon disk includes the steps of relatively positioning a disk assembly and a drive shaft assembly in closely spaced relation with the planar surface of the...
5619350 Optical scanning device  
An optical scanning device including a semiconductor laser and a scanning optical system which transmits a laser beam emitted from the semiconductor laser and scans the laser beam on a...
5610407 Optical image scanning apparatus detecting sheet size and displacement  
An image scanning apparatus can obtain, using a simple optical detection system, original sheet information including size and displacement information of an original sheet before an image scanning...
5550655 Laser beam optical scanner  
A laser beam passes through two holograms or through a hologram twice to reduce the ratio λ/d so that P-polarized light, as well as S-polarized light, can be diffracted with high diffraction...
5546201 Double bounce passive facet tracking with a reflective diffraction grating on a flat facet  
A double bounce facet tracking polygon in which a reflective mode replicated diffraction grating element on a flat facet on the double bounce facet tracking polygon is used to provide a small angle...
5526167 Scanning device  
Scanning device for optically scanning symbol codes, such as bar codes, comprising a laser source for producing a scanning beam, a detector for detecting light backscattered by the scanned symbol...
5526144 Optical system with pivoting hologram  
An optical data storage system includes a pivotally mounted hologram. Rotation of the hologram results in beam displacement at the optical medium for purposes of fine tracking. The hologram is...
5506703 Three-dimensional image display device  
A three-dimensional image display device which comprises a holographic plate having a plurality of holograms divided in correspondence with rotational angles, the holographic plate being exposed so...
5497252 Internal drum plotter with multiple focal point holographic optical element  
An internal drum plotter in which a multiple focal point holographic element receives respective modulated light beams, one for each focal point, to focus the light beams on a light sensitive...
Matches 1 - 50 out of 117 1 2 3 >