Matches 101 - 150 out of 933 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >
Match Document Document Title
6937371 Optical scanner and image formation apparatus  
An optical system includes three optical systems. The first has a coupling lens. The second includes a lens having a positive power in a vertical scanning direction and forms the light flux into a...
6934062 Scanning optical system  
A scanning optical system includes a light source that emits a plurality of beams, a deflector disposed on optical paths of the beams emitted from light source, which deflector deflects the beams...
6934061 Optical scanner and image reproducing apparatus  
An optical scanner includes at least a pair of optical scanning systems and a light deflector used in common between the optical scanning systems, each optical scanning system having a scan lens...
6930812 Multi-beam light scanning optical system and image forming apparatus using same  
A multi-beam light scanning optical system includes n (n≧2) light source means having m (m≧2) light emitting points; beam synthesizing means for synthesizing n×m light beams emitted by the...
6916101 Metallic mirror, metallic rotary polygonal mirror, and process for their production  
A metallic mirror comprising a substrate made of aluminum or an aluminum alloy, and superposingly provided thereon, in order, an intermediate TiO 2 layer and a metallic reflective in layer. The...
6914705 Optical scanning device  
An optical scanning device for scanning a plurality of light beams on scanned surfaces, such as photosensitive drums, includes a light source, a front optical system, a deflector (e.g., a rotating...
6903855 Multi-beam scanning method, apparatus and multi-beam light source device achieving improved scanning line pitch using large light emitting points interval  
A multi-beam scanning method for scanning a scanning surface with a plurality of beams which are formed into a plurality of beam spots separated from each other in a sub scanning direction includes...
6898020 Image display device  
A single plate type optical unit and display device to utilize light with high efficiency in a simple method is configured so a dichroic mirror separates light into a plurality of colors, and the...
6891678 Lens for optical scanning, optical scanner, and image forming apparatus  
A lens for optical scanning condenses luminous flux deflected by an optical deflector to a plane to be scanned in a scanning image forming optical system. The lens is made of a plastic material by...
6888655 Optical beam scanning device  
An optical beam scanning device comprises optical beam scanning means for rotational polygonal mirror to deflect entering luminous flux and scan an object to be scanned with the luminous flux;...
6885486 Scanning optical system and image forming apparatus using the same  
Provided is a scanning optical system in which the influence of structural birefringence resulting from a relationship between the arrangement direction of a fine grating structure and polarization...
6885485 Multibeam scanning device  
A multibeam scanning device includes a deflecting system that deflects a plurality of beams, which are emitted by a light source, in a main scanning direction. On a first imaging optical system,...
6882453 Scanning optical system  
There is provided a scanning optical system for emitting a plurality of beams scanning in a main scanning direction. The scanning optical system includes a first and a second light emitting devices...
6873466 Scanning optical system  
A scanning optical system deflects a light beam by a reflection surface of a polygon mirror toward an object surface through an image forming optical system so that the light beam scans on the...
6870581 Single panel color video projection display using reflective banded color falling-raster illumination  
A projection display system. The projection system includes a light source, illumination optics that are capable of splitting the light from the source into individual color bands, and folding...
6859329 Scanning type display optical system and scanning type image display apparatus  
A scanning type display optical system which is small in size and can display images by two-dimensionally scanning light is disclosed. The scanning type display optical system scans light from a...
6859295 Scanning optical system  
There is provided a scanning optical system which includes an imaging optical system having a first plastic lens and a second plastic lens. With regard to an auxiliary scanning direction, the first...
6850348 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...
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...
6842187 Optical beam scanning device and image forming apparatus  
An optical beam scanning device includes plural light sources, a pre-deflection optical unit, a light deflection unit, a post-deflection optical unit, and a horizontal synchronization unit. One of...
6839156 Laser scanning unit and electrophotographic image forming apparatus adopting the same  
A laser scanning unit and an electrophotographic image forming apparatus adopting the same include a plurality of photogenerators emitting parallel lights, a plurality of rotatable polygonal...
6839042 Light beam display with interlaced light beam scanning  
A light beam display employing interlaced light beam scanning comprising a display screen having a vertical and a horizontal dimension, a source of a plurality of light beams and an optical path...
6831763 Scanning optical system  
In a scanning optical system including a polygon mirror for dynamically deflecting N laser beams corresponding to N color components and an imaging optical system for converging the laser beams...
6831736 Method of and apparatus for line alignment to compensate for static and dynamic inaccuracies in scanning  
In a method and apparatus for compensating for static and dynamic inaccuracies in an optical scanner used in a typical surface inspection system, the scanner may have a scanning axis and a...
6825962 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...
6825961 Multi-beam scanning optical system and image forming apparatus using it  
Provided are a multi-beam scanning optical system capable of implementing high-quality printing in relatively simple structure and at high speed, and an image forming apparatus using it. The...
6822775 Method and apparatus for polygon mirror scanning capable of performing a stable high speed polygon mirror rotation  
A high speed rotating apparatus including a shaft, a rotary body, and a motor. The rotary body driven by the motor has a hollow into which the shaft is inserted and forms a dynamic pressure air...
6822774 Optoelectronic device  
An optoelectronic device for detecting labels with defined contrast patterns includes a transmitter for emitting light rays, a receiver for receiving light rays, as well as a deflection unit with a...
6813052 Optical scanner and image forming apparatus using the same  
An optical scanner for an image forming apparatus of the present invention includes a polygonal mirror for steering a scanning beam incident thereto and an optical device located in the vicinity of...
6809847 Scanner with synchronously switched optics  
A method of and system a system for generating scan lines having different beam characteristics. In one embodiment, the beam is focused at different distances depending upon the scan line. A system...
6806984 Optical scanning apparatus capable of reducing variations in shading and improving light usage  
An optical scanning apparatus reduces shading and variations in light intensity and significantly increases light usage during an optical scanning process using a simple construction in which a...
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...
6798549 Multi-beam scanning optical system and image forming apparatus using it  
Provided are a multi-beam scanning optical system capable of implementing high-quality printing in relatively simple structure and at high speed, and an image forming apparatus using it. The...
6795222 Multi-beam scanning optical system and image forming apparatus using it  
Provided are a multi-beam scanning optical system capable of implementing high-quality printing in relatively simple structure and at high speed, and an image forming apparatus using it. The...
6791728 Scanning optical device and image forming apparatus  
In an OFS scanning optical system in which a light beam incident to a deflection surface is set to a light beam wider than the deflection surface, angles formed between the center axes of emitted...
6788807 Three dimensional information measurement method and apparatus  
Method and apparatus for measuring three dimensional information of a target placed in an interior space of a rotator type mirror by using the rotator type mirror in combination with an imaging...
6788446 Optical scanning apparatus  
An optical scanning apparatus for optically scanning a surface to be scanned at a constant velocity includes a light source for emitting a light flux, a first optical lens system for coupling the...
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...
6786413 Production of aiming spot with enhanced visibility in electro-optical readers for reading indicia  
Curved reflecting surfaces on a rotary scan component produce an aiming spot of enhanced visibility during a single scan line mode of operation for an electro-optical reader capable of reading bar...
6785030 Optical element and optical scanning device using the same  
There are provided an optical element which can reduce an assembly cost by simplifying focus adjustment of the optical element, decreasing the number of parts required for the adjustment, and...
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...
6783074 Methods and apparatus for efficient use of space in arranging and configuring optical components of bar code scanners  
Techniques for arrangement of components in a bar code scanner so as to make efficient use of space are described. A scanner includes a single scan window, a laser source for producing a laser...
6781729 Optical scanning system with unvarying image surface under environmental temperature change  
An optical scanning device employing a scanning imaging optical system that includes a first optical system configured to receive a light flux emitted from a light source, and a second optical...
6775041 Multibeam scanning apparatus  
A multibeam scan apparatus includes a light source having semiconductor laser diodes and coupling lenses arranged in a main scan direction. The semiconductor laser diodes are positioned so that...
6775040 Scanning sync-signal detecting circuit for laser scanner  
A scanning sync-signal detecting circuit for a laser scanner is provided. The circuit prevents misdetections of a horizontal sync signal caused by stray beams and enables a precise detection of the...
6771429 Optical scanner  
An optical scanner according to the present invention comprises a first imaging optical system consisting of a collimator lens and a cylindrical lens, a light deflector reflecting/deflecting a...
6771407 Optical scanner and image formation apparatus  
An optical system includes three optical systems. The first has a coupling lens. The second includes a lens having a positive power in a vertical scanning direction and forms the light flux into a...
6771406 Scanning optical system  
A scanning optical system includes a polygonal mirror that deflects the even number of beams, which are incident thereon along optical paths arranged symmetrically with respect to a plane...
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...
6765705 Optical unit and image display device using thereof  
A single plate type optical unit and display device to utilize light with high efficiency in a simple method is configured so a dichroic mirror separates light into a plurality of colors, and the...
Matches 101 - 150 out of 933 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >