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1. 发明专利

JP2012044497A Document lighting device, document reading device and image forming device 有权
标题翻译：文件照明装置，文件读取装置和图像形成装置
公开(公告)号：JP2012044497A
公开(公告)日：2012-03-01
申请号：JP2010184661
申请日：2010-08-20
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKAURA ATSUSHI , AOKI MASAKANE , TAKANASHI KENICHI , MIYAGAKI KAZUYA , ONO NOBUAKI , AKATSU KAZUHIRO , SAKURAI YASUO , SHIBAYAMA YASUYUKI
IPC分类号： H04N1/04 , G03B27/54 , H04N1/028
摘要： PROBLEM TO BE SOLVED: To provide a document lighting device enhancing flexibility of arrangement of a light guiding body, enabling reduction in the size of the device and having high light diffusing effects and excellent effects for reduction in variation of illumination chromaticity and irregular colors on a document reading face, a document reading device including the document lighting device, and an image forming device.SOLUTION: The document lighting device includes: a plurality of light emitting elements 1 which are arranged along a main scanning direction in an irradiation region irradiated with light and emit light having first wavelength λ1 as peak wavelength; a fluorescent member 5 excited by the light from the light emitting elements 1 and emitting light having second wavelength λ2 and third wavelength λ3 as peak wavelength; the light guiding body 4 guiding outgoing light from the light emitting elements 1 to the irradiation region; and a holding member 7 holding the light guiding body 4. The light guiding body 4 comprises a flexible sheet member, and the light from the light emitting elements 1 is delivered to the irradiation region via the light guiding body 4 and the fluorescent member 5. The invention also relates to the document reading device including the document lighting device and the image forming device.
摘要翻译：解决问题：提供一种提高导光体的布置灵活性的文件照明装置，能够减小装置的尺寸并具有高的光漫射效果和优异的减少照明色度和不规则的变化的效果文件读取面上的颜色，包括文件照明装置的文件读取装置和图像形成装置。文献照明装置包括：多个发光元件1，其在照射光的照射区域中沿主扫描方向排列并发射具有第一波长λ1的光作为峰值波长; 由来自发光元件1的光激发的荧光部件5，发射具有第二波长λ2和第三波长λ3的光作为峰值波长; 导光体4将来自发光元件1的出射光引导到照射区域; 以及保持导光体4的保持构件7.导光体4包括柔性片构件，并且来自发光元件1的光经由导光体4和荧光构件5被输送到照射区域。本发明还涉及包括文件照明装置和图像形成装置的文件读取装置。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2006154823A Scanning and imaging optical system, optical scanner, image forming apparatus, method of manufacturing scanning and imaging optical system and method of manufacturing optical scanner 审中-公开
标题翻译：扫描和成像光学系统，光学扫描仪，图像形成装置，制造扫描和成像光学系统的方法和制造光学扫描仪的方法
公开(公告)号：JP2006154823A
公开(公告)日：2006-06-15
申请号：JP2005341898
申请日：2005-11-28
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ONO NOBUAKI , SUZUKI SEIZO , AOKI MASAKANE
IPC分类号： G02B26/12 , G02B13/00 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To effectively correct the bending of a scanning line in an optical scanner in which a luminous flux from a light source is made incident to a deflection and reflection face diagonally with respect to the rotation axis of the deflection and reflection face, deflected at a constant angular velocity, and a plane including the incident direction from the light source side to the deflection and reflection face and the rotation axis is optically scanned with symmetry. SOLUTION: In the designing step of an optical scanner, the scanning and imaging optical system is designed in a way that the bending of the scanning line peculiar to the optical scanner, in which the scanning and imaging optical system is designed without taking the effect of a correction refraction face for correcting the bending of the scanning line into consideration, is derived as a designing value, the peculiar tilt of one or more correction refraction faces for correcting the derived bending of the scanning line peculiar to the optical scanner is derived as a designing value for every incident position of a deflected luminous flux on one or more correction refraction faces, and on the basis of the data of the scanning and imaging optical system designed without taking the effect of the correction refraction face into consideration and on the peculiar tilt of one or more correction refraction faces derived as a designing value. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了有效地校正光学扫描器中的扫描线的弯曲，其中来自光源的光通量相对于偏转的旋转轴线倾斜对准偏转和反射面，并且反射面以恒定的角速度偏转，并且包括从光源侧到偏转和反射面和旋转轴的入射方向的平面被对称地光学扫描。解决方案：在光学扫描仪的设计步骤中，扫描和成像光学系统被设计成使得扫描线特有的扫描线的弯曲，其中扫描和成像光学系统被设计成不采取导出用于校正扫描线的弯曲的校正折射面的效果作为设计值，用于校正光学扫描仪特有的扫描线的导出弯曲的一个或多个校正折射面的特殊倾斜是导出为针对一个或多个校正折射面上的偏转光束的每个入射位置的设计值，并且基于设计的扫描和成像光学系统的数据而不考虑校正折射面的影响，并且基于作为设计值导出的一个或多个校正折射面的特殊倾斜。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2010060769A Polygon mirror, optical deflector, optical scanner, and image forming apparatus 审中-公开
标题翻译：多棱镜，光学偏光镜，光学扫描仪和图像形成装置
公开(公告)号：JP2010060769A
公开(公告)日：2010-03-18
申请号：JP2008225600
申请日：2008-09-03
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ITAMI YUKIO , HIRAKAWA MAKOTO , HAYASHI YOSHIAKI , AOKI MASAKANE
IPC分类号： G02B26/12 , B41J2/44 , G02B1/10 , G02B5/08 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To make the availability of light rays flat with respect to the variation in incident angles of the light rays from a light source by preventing contamination of the reflection face of a polygon mirror and a partial reflectance reduction by: using a resin optical film having excellent water repellency and excellent oil repellency; and canceling the transmissivity characteristic of a sound insulation glass against the reflectance characteristic of the polygon mirror. SOLUTION: The polygon mirror 100 has a plurality of reflection faces which reflect the light rays from a light source 102, a tilted sound insulation glass 101 is disposed in the vicinity of the polygon mirror, the light rays are incident and emitted on the polygon mirror through the sound insulation glass 101. The resin optical film having water repellency and oil repellency is formed on the reflection face of the polygon mirror, and the reflectance characteristic of the resin optical film is set to be inverse against the transmissivity characteristic of the sound insulation glass 101 with respect to the variation in the incident angles of the light rays from the light source 102 accompanying the rotation of the polygon mirror 100. The polygon mirror is used for the optical deflector, the optical scanner and the image forming apparatus. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：通过防止多面反射镜的反射面的污染和部分反射率的降低，使光线的可用性相对于来自光源的光线的入射角的变化是平坦的，使用具有优异的防水性和优异的拒油性的树脂光学膜; 并且抵消多面镜的反射特性来消除隔音玻璃的透射特性。解决方案：多面镜100具有多个反射来自光源102的光线的反射面，倾斜隔音玻璃101设置在多面镜附近，光线入射并发射到通过隔音玻璃101的多面镜。在多面反射镜的反射面上形成具有防水性和拒油性的树脂光学膜，树脂光学膜的反射特性被设定为与透光率特性相反隔音玻璃101相对于伴随多面镜100的旋转的来自光源102的光线的入射角的变化而变化。多面镜用于光学偏转器，光学扫描器和成像设备。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2004109793A Image reader and image forming apparatus 审中-公开
标题翻译：图像读取器和图像形成装置
公开(公告)号：JP2004109793A
公开(公告)日：2004-04-08
申请号：JP2002275023
申请日：2002-09-20
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MIYATAKE NAOKI , AOKI MASAKANE , NISHINA KIICHIRO
IPC分类号： G03B27/50 , H04N1/04 , H04N1/10 , H04N1/107 , H04N1/19
摘要： PROBLEM TO BE SOLVED: To obtain an image reader and an image forming apparatus which make output signals from a solid-state imaging device at respective image heights uniform in both a horizontal and a vertical scanning direction even when imaging positions at respective image heights in the horizontal and vertical scanning directions of an imaging lens are different, is adaptive to color documents, match imaging positions of respective colors R, G, and B with one another, make output signals from the solid-state imaging device uniform at the respective image heights, and cause neither deterioration in imaging performance nor shifts in imaging position in horizontal and vertical scanning directions of luminous flux on an optical axis.
SOLUTION: The image forming apparatus has an imaging lens L1 which images image information of a document and the solid-state imaging device 400 which reads the image information. A mirror MA which has an anamorphic surface is arranged in the optical path between the imaging lens L1 and solid-state imaging device 400.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了获得图像读取器和图像形成装置，其使得在来自固定成像装置的各个图像高度的输出信号在水平和垂直扫描方向上均匀，即使在各个图像处的成像位置成像透镜的水平和垂直扫描方向的高度不同，适合于彩色文件，将各种颜色R，G和B的成像位置彼此匹配，使来自固态成像装置的输出信号在并且不会导致成像性能的劣化，也不会导致光轴的光束的水平和垂直扫描方向的成像位置的偏移。解决方案：图像形成装置具有对文件的图像信息和读取图像信息的固态成像装置400进行成像的成像透镜L1。具有变形表面的镜MA布置在成像透镜L1和固态成像装置400之间的光路中。（C）2004，JPO

5. 发明专利

JP2003320702A Imaging method and imaging apparatus 审中-公开
标题翻译：成像方法和成像装置
公开(公告)号：JP2003320702A
公开(公告)日：2003-11-11
申请号：JP2002129318
申请日：2002-04-30
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： AOKI MASAKANE , NIHEI YASUHIRO , ISHIDA MASAAKI
IPC分类号： B41J2/44 , G02B26/10 , G03G15/01 , G03G15/04 , G03G15/043 , G03G21/14 , H04N1/036 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To provide an imaging method whereby temperatures of a plurality of scanning optical systems are detected by a single temperature detecting element so as to simplify a correction of a printing position deviation due to a temperature fluctuation of the scanning optical systems, and an imaging apparatus. SOLUTION: Temperature detecting elements 10 and 11 for detecting temperatures of two scanning optical systems by one element are set at scanning optical systems '5a, 6a' to '5d, 6d' of a tandem form laser scanning optical device. Since there is no problem even when temperatures of adjacent scanning optical systems are considered to be nearly equal to each other in a tandem form laser scanning optical unit, the need of setting temperature sensors for four colors of Y, M, C and K is eliminated. By simplifying temperature sensors as above, a control for correcting, the printing position deviation is simplified, a memory capacity is reduced, and an energy is saved. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种通过单个温度检测元件检测多个扫描光学系统的温度的成像方法，以便简化由于扫描光学器件的温度波动引起的打印位置偏差的校正系统和成像装置。解决方案：用于通过一个元件检测两个扫描光学系统的温度的温度检测元件10和11被设置在串联形式激光扫描光学器件的扫描光学系统5a，6a'至'5d，6d'处。由于即使在串联形式的激光扫描光学单元中认为相邻的扫描光学系统的温度被认为几乎相等也没有问题，因此消除了设置Y，M，C和K四种颜色的温度传感器的需要。通过简化如上所述的温度传感器，用于校正的控制被简化，打印位置偏差减小，并且节省了能量。版权所有（C）2004，JPO

6. 发明专利

JP2013084465A Document lighting unit, document reading device, and image forming device 有权
标题翻译：文件照明单元，文件读取装置和图像形成装置
公开(公告)号：JP2013084465A
公开(公告)日：2013-05-09
申请号：JP2011224085
申请日：2011-10-11
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKAURA ATSUSHI , MIYAGAKI KAZUYA , SHIBAYAMA YASUYUKI , SAKURAI YASUO , TAKANASHI KENICHI , AOKI MASAKANE , AKATSU KAZUHIRO , ONO NOBUAKI
IPC分类号： F21V8/00 , F21Y101/02 , G03B27/54 , G06T1/00 , H04N1/04
摘要： PROBLEM TO BE SOLVED: To aim at thinning and improvement of lighting efficiency of a document lighting unit.SOLUTION: In the document lighting unit 20, light irradiated from a plurality of light emitting elements 4 aligned in an X direction is made incident from an incident face 3 of a light guide body 1 and propagated, and after a part of it is discharged from an emission face 9 opposed to the incident face 3, it is reflected by an opposition reflection plate 11 and illuminates a reading region A on a document table 10 (beams 23-25) and furthermore, on the side of a horizontal face 5 of the light guide body 1 nearer the light emitting element 4, there is arranged a deflection reflecting face 6, and on the side of the horizontal face 7 farther from the light emitting element 4, there is arranged a deflection reflecting face 8, and a part of the light incident into the light guide body 1 and propagated is reflected by the deflection reflecting face 8 and then is transmitted through the horizontal face 5 and illuminates the reading region A (a beam 22), and moreover a part of the light made incident into the light guide body 1 is reflected by the deflection reflecting face 6 and then reflected by the deflection reflecting face 8 and is transmitted through the horizontal face 5 and illuminates the reading region A (a beam 21).
摘要翻译：要解决的问题：旨在减少和提高文件照明单元的照明效率。解决方案：在文件照明单元20中，从X方向排列的多个发光元件4照射的光从导光体1的入射面3入射并传播，并且在其一部分之后从与入射面3相对的射出面9放电，被对置反射板11反射，照射文件台10（光束23-25）上的读取区域A，并且在水平面在导光体1的靠近发光元件4的位置设置有偏转反射面6，在与发光元件4更远的水平面7侧配置有偏转反射面8，入射到导光体1中并被传播的光的一部分被偏转反射面8反射，然后透过水平面5照射读取区域A（光束22），而且照射光的一部分制作入射到导光体1中的光束被偏转反射面6反射，然后被偏转反射面8反射，透过水平面5照射读取区域A（光束21）。版权所有（C）2013，JPO＆INPIT

7. 发明专利

JP2012023551A Original document illuminating device, original document reading device, and image forming device 有权
标题翻译：原始文件照明装置，原始文件读取装置和图像形成装置
公开(公告)号：JP2012023551A
公开(公告)日：2012-02-02
申请号：JP2010159850
申请日：2010-07-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKAURA ATSUSHI , AKATSU KAZUHIRO , ONO NOBUAKI , MIYAGAKI KAZUYA , TAKANASHI KENICHI , SAKURAI YASUO , SHIBAYAMA YASUYUKI , AOKI MASAKANE
IPC分类号： H04N1/04 , F21S2/00 , F21Y101/02 , G03B27/54 , H04N1/028
摘要： PROBLEM TO BE SOLVED: To provide an original document illuminating device, an original document reading device equipped with the same, and an image forming device, having a high degree of freedom in a light guide body arrangement, capable of downsizing a device, and excellent in effects of reducing variation and color shading of an illumination chromaticity of an original document reading surface.SOLUTION: An original document illuminating device, an original document reading device equipped with the same, and an image forming device comprise: a plurality of light-emitting devices 1 arranged along a main scan direction of a irradiation region irradiated with light; a light guide body 4 to guide light emitted from the plurality of light-emitting devices 1 into the irradiation region; and a holding member 10 to hold the light guide body 4. The light guide body 4 is made of a sheet-like member having flexibility.
摘要翻译：要解决的问题：为了提供原始文件照明装置，具有该文件的原始文件读取装置，以及在导光体装置中具有高度自由度的图像形成装置，能够使装置并且具有优异的降低原始文件读取表面的照度色度的变化和着色的效果。解决方案：原稿照明装置，配备有其的原稿读取装置和图像形成装置包括：沿着照射光的照射区域的主扫描方向布置的多个发光装置1; 导光体4，其将从多个发光装置1射出的光引导到照射区域; 以及用于保持导光体4的保持构件10.导光体4由具有柔性的片状构件制成。版权所有（C）2012，JPO＆INPIT

8. 发明专利

JP2013102419A Document illumination unit, document reading device, and image forming apparatus 有权
标题翻译：文件照明单元，文件读取装置和图像形成装置
公开(公告)号：JP2013102419A
公开(公告)日：2013-05-23
申请号：JP2012182511
申请日：2012-08-21
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKAURA ATSUSHI , MIYAGAKI KAZUYA , SHIBAYAMA YASUYUKI , AKATSU KAZUHIRO , ONO NOBUAKI , SAKURAI YASUO , TAKANASHI KENICHI , AOKI MASAKANE
IPC分类号： H04N1/04 , F21S2/00 , F21V8/00 , F21Y101/02 , G03B27/50 , G03B27/54 , H04N1/028
摘要： PROBLEM TO BE SOLVED: To realize reduction in thickness of a document illumination unit and improvement of illumination efficiency thereof.SOLUTION: In a document illumination unit 20, light radiated from plural light emitting elements 4 arrayed in a x direction is entered and transmitted from an incident surface 3 of a light guide body 1, part thereof is emit from an emission surface 9 facing the incident surface 3 and reflected by a facing reflex board 11 for illuminating an area to be read A on a document platen 10 (beam of light 23 to 25). On a side close to the light emitting element 4 on a horizontal plane 5 of the light guide body 1, a deflection reflection surface 6 is provided, on a side far from the light emitting elements 4 on a horizontal plane 7, a deflection reflection surface 8 is provided, the part of light entered and transmitted in the light guide body 1 is reflected by the deflection reflection surface 8 and caused to transmit the horizontal plane 5 to illuminate the area to be read area A (beam of light 22). The part of light entered and transmitted in the light guide body 1 is reflected by the deflection reflection surface 6, reflected by the deflection reflection surface 8 and caused to transmit the horizontal plane 5 to illuminate the area to be read A (beam of light 21).
摘要翻译：要解决的问题：实现文件照明单元的厚度的减小和其照明效率的提高。解决方案：在文件照明单元20中，从沿轴向排列的多个发光元件4发出的光进入并从导光体1的入射面3透射，其一部分从发射面9 入射表面3并由面对反射板11反射，用于照射文档台板10上的待读取区域A（光束23至25）。在导光体1的水平面5上靠近发光元件4的一侧，在远离发光元件4的水平面7的一侧设置有偏转反射面6，偏转反射面如图8所示，在导光体1中进入和透射的光的一部分被偏转反射面8反射，并使透射水平面5照射要被读取区域A（光束22）的区域。在导光体1中进入和透射的光的一部分被偏转反射面6反射，被偏转反射面8反射，并使透射水平面5照射待读取的区域A（光束21 ）。版权所有（C）2013，JPO＆INPIT

9. 发明专利

JP2012120061A Lighting unit, document reading device, and image forming apparatus 审中-公开
标题翻译：照明单元，文件读取装置和图像形成装置
公开(公告)号：JP2012120061A
公开(公告)日：2012-06-21
申请号：JP2010269839
申请日：2010-12-03
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKAURA ATSUSHI , AOKI MASAKANE , TAKANASHI KENICHI , MIYAGAKI KAZUYA , ONO NOBUAKI , AKATSU KAZUHIRO , SHIBAYAMA YASUYUKI , SAKURAI YASUO
IPC分类号： H04N1/04 , G03B27/50 , G03B27/54 , G06T1/00 , H04N1/028
摘要： PROBLEM TO BE SOLVED: To provide a lighting unit that has reduced unevenness in chromaticity and reduced thickness of the unit.SOLUTION: Respective lighting optical systems include a plurality of LED elements 11, a mount board, and a light mixing sheet 13. The light mixing sheet 13 has substantially the same thickness as the diameter of a light-emitting surface of the LED element 11, and is arranged adjacent to or in contact with the plurality of LED elements 11. Light made incident on one end face of the light mixing sheet 13 is reflected a number of times inside the sheet and emitted from the other end face of the sheet. Blue light and yellow light emitted from the LED elements 11 are sufficiently mixed in the light mixing sheet 13, and thereby white light with reduced unevenness in chromaticity is emitted from the light mixing sheet 13.
摘要翻译：要解决的问题：提供降低色度不均匀性和减小单元厚度的照明单元。解决方案：各种照明光学系统包括多个LED元件11，安装板和光混合片13.光混合片13具有与LED的发光表面的直径基本相同的厚度元件11，并且被布置为与多个LED元件11相邻或接触。入射在光混合片13的一个端面上的光在片材内反射多次，并从该另一端面发射片。从LED元件11发出的蓝光和黄光在光混合片13中充分混合，从而从光混合片13发出色度不均匀的白光。版权所有（C）2012，JPO＆INPIT

10. 发明专利

JP2010113329A Optical scanning device, and image forming apparatus 有权
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：JP2010113329A
公开(公告)日：2010-05-20
申请号：JP2009024060
申请日：2009-02-04
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ITAMI YUKIO , OSUGI TOMOYA , AOKI MASAKANE , NAKAJIMA TOMOHIRO , HAYASHI YOSHIAKI , MIYATAKE NAOKI , MASUDA KENSUKE , WATANABE NAOTO , TSUCHIYA SATOSHI
IPC分类号： G02B26/12 , B41J2/44 , H04N1/113
CPC分类号： G02B26/12 , B41J2/471 , G02B27/0006
摘要： PROBLEM TO BE SOLVED: To solve the problem of a structure in the prior art, which is known as providing air cooling by using a fan that produces airflow for cooling and having a duct that is arranged around the optical housing thereby preventing temperature rise and uneven temperature distribution due to the heat generation accompanying the rotation of a polygon mirror in an image forming apparatus, which is disadvantageous in requiring additional space for the duct around the optical housing, which inhibits compact construction of an image forming apparatus, and which is also disadvantageous in being less environmentally friendly because driving the fan increases power consumption. SOLUTION: An optical box includes an air inlet that includes a filter, and an external air inducing path that includes a first end that is linked to the air inlet and a second end that is arranged close to a mirror surface of the polygon mirror. An external airflow guide member is arranged at a position opposite to a surface of the polygon mirror on the air inlet side, for preventing an air circulation around the polygon mirror, thus external air whose temperature is lower than that of the inside the optical housing and having higher cooling effect is supplied to space around the polygon mirror, thereby cooling effect is increased and mirror surfaces of the polygon mirror are prevented from being hazed and becoming dirty. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题为了解决现有技术中的结构问题，已知通过使用产生用于冷却的气流的风扇来提供空气冷却，并且具有布置在光学壳体周围的管道，从而防止温度由于与图像形成装置中的多角镜的旋转相伴随的发热而产生的上升和不均匀的温度分布，这不利于为光学外壳周围的管道需要额外的空间，这妨碍了图像形成装置的紧凑结构，并且其中由于驱动风扇增加了功耗，所以环境不利也是不利的。解决方案：光学盒包括包括过滤器的空气入口和外部空气引导路径，其包括连接到空气入口的第一端和布置成靠近多边形的镜面的第二端镜子。外部气流引导构件配置在与入射侧的多面镜的表面相反的位置，用于防止多边形反射镜周围的空气循环，从而外部温度低于光学壳体内部的外部空气，向多面镜周围的空间提供较高的冷却效果，从而提高冷却效果，并且防止多面镜的镜面被遮蔽并变脏。版权所有（C）2010，JPO＆INPIT

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