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公开(公告)号：EP1046941B1
公开(公告)日：2005-06-29
申请号：EP00108649.5
申请日：2000-04-20
Applicant: FUJI PHOTO FILM CO., LTD.
Inventor： Takada, Norihisa, c/o Fuji Photo Film Co., Ltd, , Fujii, Takeshi, c/o Fuji Photo Film Co., Ltd,
CPC classification number: H04N1/00567 , G02B26/10 , G02B26/101 , G02B26/105 , G02B27/0031 , H04N1/047 , H04N1/0607 , H04N2201/03154 , H04N2201/0471 , H04N2201/04729 , H04N2201/04732 , H04N2201/04734 , H04N2201/04744 , H04N2201/04755 , H04N2201/0476 , H04N2201/04789 , H04N2201/04793
Abstract: One or more light beams are deflected and all beams then combined and scanned by common optical system. Beam positions are detected before scanning mechanism to provide first correction data and after scanning when scanned beams reach recording surface to provide second correction data and two sets are used together to correct beam deflection and thus position of scanned beams. Beam deflector is two-dimensional or number of one-dimensional acousto-optical or electro-optical devices. Independent claims are included for (a) a light beam scanning apparatus (b) and a method of controlling a drive operation of a light beam scanning apparatus.
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72.发明授权Beam deflecting for resolution enhancement and banding reduction in a laser printer 失效光束偏转提高分辨率和降低激光打印机的条纹效果
公开(公告)号：EP0763762B1
公开(公告)日：2001-10-04
申请号：EP96103991.4
申请日：1996-03-13
Inventor： Lawton, Robert J. , Marshall, Daniel R.
CPC classification number: H04N1/047 , G02B26/127 , G06K15/1223 , H04N1/1135 , H04N1/12 , H04N2201/02439 , H04N2201/03154 , H04N2201/0458 , H04N2201/046 , H04N2201/0471 , H04N2201/04722 , H04N2201/04729 , H04N2201/04731 , H04N2201/04732 , H04N2201/04734 , H04N2201/04744 , H04N2201/0476 , H04N2201/04791 , H04N2201/04794
Abstract: A system and method (10) of deflecting a laser beam (20) in a laser printer for providing enhanced resolution and reduced banding effects. Specifically, to enhance resolution, the laser beam is deflected from a white space area adjacent an image to double resolution at the edges of the image. Similarly, banding is reduced by deflecting the beam to compensate for drum rotational and translational errors. The beam is deflected using an electro-optic modulator (25) placed between the laser diode (15) and the scanning mirror (30). Encoders (55,60) detect drum rotational errors and motion between the optics unit and the drum to provide a closed loop feedback system for reducing banding.
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公开(公告)号：EP1009157A3
公开(公告)日：2001-05-02
申请号：EP99309779.9
申请日：1999-12-06
Applicant: Xerox Corporation
Inventor： Nowak, William J. , Appel, James J. , Bock, Edward C.
CPC classification number: H04N1/1135 , H04N1/047 , H04N1/12 , H04N1/506 , H04N2201/02439 , H04N2201/03154 , H04N2201/0471 , H04N2201/04722 , H04N2201/04729 , H04N2201/04731 , H04N2201/04734 , H04N2201/04739 , H04N2201/04744 , H04N2201/0476 , H04N2201/04763 , H04N2201/04786 , H04N2201/04789 , H04N2201/04791 , H04N2201/04794
Abstract: Electrophotographic printers have raster output scanners (27) that correct for polygon facet (126) phasing errors and photoreceptor (10) position errors by aerial scan line adjustments. A photoreceptor position sensor senses the position of the photoreceptor (10) and a facet position sensor (137) senses the position of the polygon facets. A scan line position controller (119) produces a position signal that depends upon the photoreceptor position sensor and the facet position sensor (137). A piezoelectric-actuated lens mover assembly (118) receives the position signal and moves a pre-polygon lens (116) to adjust the scan line plane to correct for any misregistration. The piezoelectric-actuated lens mover assembly (118) includes a large displacement piezoelectric element and a flexible arm assembly (210) that holds the pre-polygon lens (116).
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公开(公告)号：EP1009157A2
公开(公告)日：2000-06-14
申请号：EP99309779.9
申请日：1999-12-06
Applicant: Xerox Corporation
Inventor： Nowak, William J. , Appel, James J. , Bock, Edward C.
CPC classification number: H04N1/1135 , H04N1/047 , H04N1/12 , H04N1/506 , H04N2201/02439 , H04N2201/03154 , H04N2201/0471 , H04N2201/04722 , H04N2201/04729 , H04N2201/04731 , H04N2201/04734 , H04N2201/04739 , H04N2201/04744 , H04N2201/0476 , H04N2201/04763 , H04N2201/04786 , H04N2201/04789 , H04N2201/04791 , H04N2201/04794
Abstract: Electrophotographic printers have raster output scanners (27) that correct for polygon facet (126) phasing errors and photoreceptor (10) position errors by aerial scan line adjustments. A photoreceptor position sensor senses the position of the photoreceptor (10) and a facet position sensor (137) senses the position of the polygon facets. A scan line position controller (119) produces a position signal that depends upon the photoreceptor position sensor and the facet position sensor (137). A piezoelectric-actuated lens mover assembly (118) receives the position signal and moves a pre-polygon lens (116) to adjust the scan line plane to correct for any misregistration. The piezoelectric-actuated lens mover assembly (118) includes a large displacement piezoelectric element and a flexible arm assembly (210) that holds the pre-polygon lens (116).
Abstract translation: 电子照相打印机具有光栅输出扫描器（27），其通过空中扫描线调整来校正多边形面（126）相位误差和感光体（10）位置误差。 感光器位置传感器感测感光体（10）的位置，小面位置传感器（137）感测多边形面的位置。 扫描线位置控制器（119）产生取决于感光体位置传感器和小面位置传感器（137）的位置信号。 压电致动透镜移动器组件（118）接收位置信号并移动预多边形透镜（116）以调整扫描线平面以校正任何重合失调。 压电致动透镜移动器组件（118）包括大位移压电元件和保持前多面透镜（116）的柔性臂组件（210）。
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公开(公告)号：EP0535585B1
公开(公告)日：1997-05-07
申请号：EP92116629.4
申请日：1992-09-29
Applicant: ROHM CO., LTD.
Inventor： Imamura, Masaya, c/o ROHM CO., LTD. , Ogata, Hiromi, c/o ROHM CO., LTD. , Sawase, Kensuke, c/o ROHM CO., LTD.
IPC: H04N1/03
CPC classification number: H04N1/0312 , H04N1/0314 , H04N1/0318 , H04N2201/03112 , H04N2201/0312 , H04N2201/03129 , H04N2201/03141 , H04N2201/03145 , H04N2201/03154
Abstract: There is provided an image sensor which can reduce loss in light emitted from a light emitting section toward an object to be sensed and also variability in the distribution of light and which can be produced with a small-sized structure with a reduced number of parts and with a decreased manufacturing cost. An optical path from the light emitting section (13) to a transparent covering (12) on which the object is to be placed is surrounded by a light reflecting portion comprising light reflecting surfaces (18a, 19a, 20). Light from the light emitting section (13) can be irradiated onto the transparent covering (12) without a reduction in the amount of light while being repeatedly reflected by the light reflecting portion. The light reflected by the object is condensed by a condensing lens (16), the condensed light being then received by a light receiving section (14) mounted on the same base plate (15) as in the light emitting section (13). At the light receiving section (14), the light is converted into an electrical signal.
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Patent Agency Ranking
公开(公告)号：EP0457623B1
公开(公告)日：1996-08-14
申请号：EP91304507.6
申请日：1991-05-20
Applicant: SHARP KABUSHIKI KAISHA
Inventor： Kushino, Masahiko , Maeda, Hidetoshi , Nakajima-Noburu , Yoshikawa, Mitsuhiko , Sakata, Toshiyuki
IPC: H04N1/028
CPC classification number: H04N1/0286 , H04N1/02865 , H04N1/0312 , H04N1/0315 , H04N1/0318 , H04N2201/03112 , H04N2201/03129 , H04N2201/03141 , H04N2201/03145 , H04N2201/03154
Abstract: An image sensor includes a light receiving insulating substrate which has a plurality of light receiving elements with one row disposed on one major surface and has a first wiring portion on one side of the major surface for connecting the light receiving elements to a plurality of external driving elements; a driving insulating substrate which has the driving elements mounted on one major surface and has a second wiring portion on one side of the major surface for connecting the driving elements to the light receiving elements; a press-contact connector for electrically connecting the wiring portions, keeping the light receiving insulating substrate and the driving insulating substrate in contact with each other with their respective wiring portions positioned back to back; and engaging means provided close to at least one of the wiring portions in the light receiving insulating substrate and the driving insulating substrate and also provided in the press-contact connector, for enhancing a mechanical holding strength of the press-contact connector to the insulating substrates.
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公开(公告)号：EP0493017B1
公开(公告)日：1996-06-12
申请号：EP91311865.9
申请日：1991-12-20
Applicant: ROHM CO., LTD.
Inventor： Ogata, Hiromi , Koshikawa, Seiji
IPC: H04N1/028
CPC classification number: H04N1/0312 , H04N1/0314 , H04N1/0318 , H04N2201/03112 , H04N2201/03129 , H04N2201/03137 , H04N2201/03141 , H04N2201/03145 , H04N2201/03154 , H04N2201/03175
Abstract: In an image sensor including a light emitting element for emitting a light beam to be incident on a document, a light receiving element for receiving the light beam reflected by the document, and a lens array for directing the reflected light beam from the document to the light receiving element, there is located a mirror between the lens array and the light receiving element for changing the direction of the light beam passing through the lens array. The light emitting element and the light receiving element are located on the same substrate. With this arrangement, a compact and inexpensive image sensor can be achieved. This compact image sensor causes an increased amount of light to be incident on the document.
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公开(公告)号：EP0535585A3
公开(公告)日：1993-06-09
申请号：EP92116629.4
申请日：1992-09-29
Applicant: ROHM CO., LTD.
Inventor： Imamura, Masaya, c/o ROHM CO., LTD. , Ogata, Hiromi, c/o ROHM CO., LTD. , Sawase, Kensuke, c/o ROHM CO., LTD.
IPC: H04N1/028
CPC classification number: H04N1/0312 , H04N1/0314 , H04N1/0318 , H04N2201/03112 , H04N2201/0312 , H04N2201/03129 , H04N2201/03141 , H04N2201/03145 , H04N2201/03154
Abstract: There is provided an image sensor which can reduce loss in light emitted from a light emitting section toward an object to be sensed and also variability in the distribution of light and which can be produced with a small-sized structure with a reduced number of parts and with a decreased manufacturing cost. An optical path from the light emitting section (13) to a transparent covering (12) on which the object is to be placed is surrounded by a light reflecting portion comprising light reflecting surfaces (18a, 19a, 20). Light from the light emitting section (13) can be irradiated onto the transparent covering (12) without a reduction in the amount of light while being repeatedly reflected by the light reflecting portion. The light reflected by the object is condensed by a condensing lens (16), the condensed light being then received by a light receiving section (14) mounted on the same base plate (15) as in the light emitting section (13). At the light receiving section (14), the light is converted into an electrical signal.
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公开(公告)号：EP0508709A3
公开(公告)日：1993-05-05
申请号：EP92303045.6
申请日：1992-04-07
Applicant: CANON KABUSHIKI KAISHA
CPC classification number: H04N1/0312 , H04N1/0315 , H04N1/0318 , H04N2201/02406 , H04N2201/02425 , H04N2201/02452 , H04N2201/03112 , H04N2201/03129 , H04N2201/03141 , H04N2201/03145 , H04N2201/03154
Abstract: A contact-type image sensor assembly including: an image sensor; a light source for illuminating an original document which has image information; an optical lens for imaging light reflected by the original document onto the image sensor; and a supporting member for supporting the image sensor, the light source and the optical lens, wherein the supporting member includes: a first supporting member for maintaining the distance from the surface of the original document and the light incidental side of the optical lens at a predetermined distance; a second supporting member disposed individually from the first supporting member and acting to maintain the distance from the light emission side of the optical lens to the light receiving side of the image sensor; and a third supporting member for supporting the first and second supporting members at predetermined positions and the third supporting member supports the first and second supporting members in this way that their positions can be adjusted.
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公开(公告)号：EP0446812A2
公开(公告)日：1991-09-18
申请号：EP91103607.7
申请日：1991-03-08
Applicant: Dainippon Screen Mfg. Co., Ltd.
IPC: H04N1/04 , H01L27/146
CPC classification number: H04N1/047 , H04N1/1135 , H04N1/12 , H04N2201/02441 , H04N2201/02443 , H04N2201/03154 , H04N2201/03158 , H04N2201/04712 , H04N2201/04729 , H04N2201/04731 , H04N2201/04734 , H04N2201/04746 , H04N2201/0476 , H04N2201/04767 , H04N2201/04789 , H04N2201/04791 , H04N2201/04796 , H04N2201/04798
Abstract: A photosensor (20a) has a pair of n-type semiconductor layers (21U, 21D) formed on the major surface of a p-type semiconductor substrate (31). A light-shielding pattern (24) comprised of unit light-shielding layers (33) is formed on the major surface of the substrate. When the major surface is scanned by a light beam in the direction (D X ) in which the unit light-shielding layers are aligned, a couple of photo-conversion signals indicating a current position of the light beam on the photosensor are generated in the photosensor. Since the light-shielding pattern is directly provided on the sensor body, no grating glass is required other than the photosensor.
Abstract translation: 光传感器（20a）具有形成在p型半导体衬底（31）的主表面上的一对n型半导体层（21U，21D）。 在基板的主表面上形成由单位遮光层（33）构成的遮光图案（24）。 当主表面被扫描单元光屏蔽层对准的方向（DX）的光束时，在光电传感器中产生指示光传感器上光束的当前位置的一对光转换信号 。 由于遮光图案直接设置在传感器主体上，所以除光传感器之外不需要格栅玻璃。
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