专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2015024546A 画像形成装置、光量補正方法およびプログラム有权
标题翻译：图像形成装置，用于校正光的数量和程序的方法
公开(公告)号：JP2015024546A
公开(公告)日：2015-02-05
申请号：JP2013154792
申请日：2013-07-25
申请人：株式会社リコー , Ricoh Co Ltd
发明人： AKATSU KAZUHIRO
IPC分类号： B41J2/44 , B41J2/45 , B41J2/455 , G03G15/00 , G03G15/04 , G03G15/043 , G03G21/00 , H04N1/036
摘要：【課題】画像に発生する縦筋状の濃度ムラをより効果的に抑制して、高品位な画像形成を行うことができる画像形成装置、光量補正方法およびプログラムを提供する。【解決手段】光書込ヘッド10と、作像ユニット20と、光書込ヘッド10に起因する画像の濃度ムラを補正するように、該光書込ヘッド10の複数の発光部の光量を補正するための第1補正データD1を取得する第1取得部61と、作像ユニット20に起因する画像の濃度ムラを相殺するように、光書込ヘッド10の複数の発光部の光量を補正するための第2補正データD2を取得する第2取得部62と、第1補正データD1と第2補正データD2とを合成して第3補正データD3を生成する生成部63と、第3補正データD3に基づいて、光書込ヘッド10の複数の発光部の光量を補正する補正部64と、を備える。【選択図】図3
摘要翻译：要解决的问题：提供一种图像形成装置，用于校正光量和程序的方法，其可以更有效地抑制图像中产生的垂直条形密度不均匀性，以便执行高质量的图像形成。解决方案：图像形成装置包括：光学写入头10; 成像单元20; 第一获取部分61，其获取用于校正光写入头10的多个发光部分的光量的第一校正数据D1，以校正由光写入头10引起的图像的浓度不均匀; 第二获取部分62，其获取用于校正光写入头10的多个发光部分的光量的第二校正数据D2，以补偿由成像单元20引起的图像的浓度不均匀; 生成部分63，通过组合第一校正数据D1和第二校正数据D2来产生第三校正数据D3; 以及基于第三校正数据D3校正光写入头10的多个发光部的光量的校正部64。

2. 发明专利

JP2013235169A Image forming apparatus and method of suppressing density variation 审中-公开
标题翻译：图像形成装置和抑制密度变化的方法
公开(公告)号：JP2013235169A
公开(公告)日：2013-11-21
申请号：JP2012108171
申请日：2012-05-10
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： AKATSU KAZUHIRO , ISHIDA MASAAKI , IWATA MUNEO , OMORI JUNJI , FUJITA ISATO
IPC分类号： G03G15/00
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of suppressing density variation over the entire area of an output image to a requested level.SOLUTION: An image forming apparatus includes: an optical scanner 2010 that includes a photoreceptor drum and a light source, and scans the surface of the photoreceptor drum in a main scanning direction by light from the light source to form a latent image on the surface of the photoreceptor drum; a developing device that develops the latent image; a home position sensor that detects a rotation period of the photoreceptor drum; a density detection device 2245 that detects density of an image developed by the developing device at three positions in the main scanning direction; and a processing device that determines an initial phase of a periodic density variation with the rotation period at the three positions in the main scanning direction of the image as a period thereof on the basis of an output signal of the density detection device 2245, and corrects a drive signal of the light source so that the periodic density variation at respective positions in the main scanning direction of the image can be suppressed on the basis of the initial phase and the rotation period.
摘要翻译：要解决的问题：提供一种能够将输出图像的整个区域上的浓度变化抑制到所要求的水平的图像形成装置。解决方案：图像形成装置包括：光学扫描器2010，其包括感光鼓和光源并且通过来自光源的光在主扫描方向上扫描感光鼓的表面，以在感光鼓的表面上形成潜像; 显影装置，用于显影潜像; 检测感光鼓的旋转周期的原位传感器; 密度检测装置2245，其检测由显影装置在主扫描方向上的三个位置显影的图像的浓度; 以及处理装置，其基于密度检测装置2245的输出信号，以图像的主扫描方向上的三个位置处的旋转周期为周期来确定周期性密度变化的初始相位，并且校正光源的驱动信号，使得能够基于初始相位和旋转周期来抑制图像的主扫描方向上的各个位置处的周期性浓度变化。

3. 发明专利

JP2012155042A Image forming device 有权
标题翻译：图像形成装置
公开(公告)号：JP2012155042A
公开(公告)日：2012-08-16
申请号：JP2011012480
申请日：2011-01-25
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SUZUKI SEIZO , ISHIDA MASAAKI , OMORI JUNJI , AKATSU KAZUHIRO , IWATA MUNEO , FUJITA ISATO
IPC分类号： G03G15/00 , B41J2/44 , G02B26/10 , H04N1/113 , H04N1/23
CPC分类号： G03G15/043 , G03G15/0189 , G03G15/5058
摘要： PROBLEM TO BE SOLVED: To provide an image forming device that stably forms an image of high quality.SOLUTION: A scanning control device determines a corrected light-emitting power signal for suppressing density variation in sub- and main-scanning directions, for each predetermined timing, in each station, on the basis of an output signal of five optical sensors and a signal output from a home position sensor corresponding to the signals output from five optical sensors, and corrects light-emitting power of a light source to be between the minimum rated power and the maximum rated power, while correcting the light-emitting power so as to moderate the change at an extreme value and at an end. During image formation, light emitting parts are driven using the corrected light-emitting power signal, for each station.
摘要翻译：解决的问题：提供稳定地形成高品质图像的图像形成装置。解决方案：扫描控制装置基于五个光学传感器的输出信号，确定每个站中每个预定定时的用于抑制副扫描方向和主扫描方向上的浓度变化的校正发光功率信号以及从与五个光学传感器输出的信号相对应的来自原位传感器的信号输出，并且将光源的发光功率修正为最小额定功率和最大额定功率之间，同时校正发光功率以便在极端的价值和结束时缓和变化。在图像形成期间，对于每个站，使用校正的发光功率信号驱动发光部件。版权所有（C）2012，JPO＆INPIT

4. 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

5. 发明专利

JP2011199442A Original illumination device, image reader, and image forming apparatus 审中-公开
标题翻译：原始照明设备，图像读取器和图像形成装置
公开(公告)号：JP2011199442A
公开(公告)日：2011-10-06
申请号：JP2010061847
申请日：2010-03-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKAURA ATSUSHI , ONO NOBUAKI , MIYAGAKI KAZUYA , AKATSU KAZUHIRO , SAKURAI YASUO , ISHIDA MASATOSHI
IPC分类号： H04N1/04 , G03B27/54 , H04N1/028 , H04N1/10 , H04N1/107
摘要： PROBLEM TO BE SOLVED: To provide: an original illumination device which has high illumination efficiency and is excellent in a color unevenness reduction effect of illumination light of a reading surface; an image reader with the original illumination device; and an image forming apparatus.SOLUTION: The original illumination device includes a reflection member 13 which guides light emitted from a plurality of LED light sources 11 to an irradiation area A, wherein the plurality of LED light sources 11 are white LEDs constituted of LED chips which emit light with prescribed wavelength and phosphors which are excited by the light from the LED chips to emit light. The reflection member 13 is a polygon mirror constituted by connecting mirror surfaces of a plurality of reflecting mirrors in the sub-scanning direction, and a radiation angle θ1 in a sub-scanning cross section of diffusion light fluxes emitted from light points on the light emission surfaces of the LED chips to be reflected by the mirror surfaces and a radiation angle θ2 in the sub-scanning cross section of the reflected reflection light fluxes satisfy the relation of θ2≥θ1. Also, the image reader, and the image forming apparatus with the original illumination device are obtained.
摘要翻译：要解决的问题：提供：具有高照明效率并且读取面的照明光的颜色不均匀性降低效果优异的原始照明装置; 具有原始照明装置的图像读取器; 和图像形成装置。解决方案：原始照明装置包括将从多个LED光源11发射的光引导到照射区域A的反射构件13，其中多个LED光源11是由LED芯片构成的白色LED 其发射具有规定波长的光并且由来自LED芯片的光激发的荧光体发光。反射构件13是通过在副扫描方向上连接多个反射镜的反射镜面和从光发射的光点发射的扩散光束的副扫描截面中的照射角度θ1构成的多面反射镜由反射镜面反射的LED芯片的表面和反射反射光束的副扫描截面中的照射角度θ2满足θ2≥θ1的关系。此外，获得图像读取器和具有原始照明装置的图像形成装置。

6. 发明专利

JP2011193205A Illumination optical system and image reader 审中-公开
标题翻译：照明光学系统和图像读取器
公开(公告)号：JP2011193205A
公开(公告)日：2011-09-29
申请号：JP2010057331
申请日：2010-03-15
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MIYAGAKI KAZUYA , TAKAURA ATSUSHI , ONO NOBUAKI , AKATSU KAZUHIRO , SAKURAI YASUO
IPC分类号： H04N1/04 , G03B27/54 , H04N1/028 , H04N1/10 , H04N1/107
摘要： PROBLEM TO BE SOLVED: To provide an illumination optical system capable of suppressing generation of color unevenness in the illumination optical system using a white LED light source having an LED chip, and a first phosphor which emits light by being excited by light of the LED chip as a light source and an image reader using the same.
SOLUTION: The illumination optical system is constituted so that a curved mirror 22 is used, a dichroic coat layer 22D (first reflection part) is formed on the front surface 22b of the curved mirror 22, a reflection layer 22M (second reflection part) is formed on the rear surface 22c of the curved mirror 22, and the illumination optical system has long pass filter characteristics as the dichroic coat layer 22D. Furthermore, since curvature radius R2 of the rear surface 22c of the curved mirror 22 is considered as the one shorter than curvature radius R1 of the front surface 22b of the curved mirror 22, it becomes possible to irradiate an irradiated part 24 by making blue right and yellow light into approximately equivalent illuminance, and to appropriately suppress the generation of the color unevenness by the curved mirror 22.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够抑制利用具有LED芯片的白色LED光源的照明光学系统的颜色不均匀的产生的照明光学系统，以及通过被发光的第一荧光体 LED芯片作为光源和使用其的图像读取器。解决方案：照明光学系统构成为使用曲面镜22，在曲面镜22的前表面22b上形成二向色涂层22D（第一反射部分），反射层22M（第二反射部分）形成在曲面镜22的后表面22c上，并且照明光学系统具有作为二向色涂层22D的长通滤光器特性。此外，由于曲面镜22的后表面22c的曲率半径R2被认为是比曲面镜22的前表面22b的曲率半径R1短的一个，所以可以通过使蓝色右侧照射被照射部24 并将黄光变成近似等效的照度，并适当地抑制由曲面镜22产生的颜色不均匀。版权所有：（C）2011，JPO＆INPIT

7. 发明专利

JP2011082626A Illumination unit, original reader, and image forming apparatus 有权
标题翻译：照明单元，原始读取器和图像形成装置
公开(公告)号：JP2011082626A
公开(公告)日：2011-04-21
申请号：JP2009230899
申请日：2009-10-02
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MIYAGAKI KAZUYA , ONO NOBUAKI , TAKAURA ATSUSHI , AKATSU KAZUHIRO , SAKURAI YASUO
IPC分类号： H04N1/04 , G03B27/54 , H04N1/028
摘要： PROBLEM TO BE SOLVED: To provide a compact illumination unit that is thinner than a conventional one without deteriorating light usage efficiency.
SOLUTION: The illumination unit 10 includes: a light source 1 arranged in the shape of an array; a light guide plate 2 having an incident end face on which light emitted from the light source 1 is made incident, a side face for guiding incident light made incident from the incident end face, and an exiting end face 23 in non-parallel with the incident end face; and a mirror 3 to emit illumination light on a surface to be illuminated on a contact glass 6 in the shape of a line. The illumination unit is configured so as to illuminate a belt-like area 5 to be illuminated by light transmitted from a portion of a side face 22 of the light guide plate 2 and light transmitted from the exiting end face 23 and reflected at the mirror 3, so that an illumination unit which has high efficiency and is low in height can be achieved.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供比常规的更小的小型照明单元，而不会降低光的使用效率。解决方案：照明单元10包括：布置成阵列形状的光源1; 具有从光源1发射的光的入射端面入射的导光板2，用于引导从入射端面入射的入射光的侧面和与该入射端面不平行的出射端面23 事端以及反射镜3，以在线状的接触玻璃6上照射的表面上照射光。照明单元被配置为照亮由导光板2的侧面22的一部分透射的光以及从出射端面23透射并在反射镜3反射的光而照射的带状区域5 能够实现效率高，体积小的照明单元。版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP2014174320A Optical scanner and image forming apparatus 有权
标题翻译：光学扫描仪和图像形成装置
公开(公告)号：JP2014174320A
公开(公告)日：2014-09-22
申请号：JP2013046616
申请日：2013-03-08
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： AKATSU KAZUHIRO , HAYASHI YOSHIAKI , MIYATAKE NAOKI , ITAMI YUKIO
IPC分类号： G02B26/12 , B41J2/44 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To provide a compact optical scanner without reducing image quality.SOLUTION: In orthogonal projection on a plane orthogonal to a rotation axis of an optical deflector, a width of a light flux incident on the optical deflector is smaller than a width of one deflection reflection plane of the optical deflector. A part of the incident light flux is vignetted by the optical deflector when the light flux deflected by the optical deflector travels toward a synchronization detection sensor, travels toward a write start position, and travels toward a write end position. When there is a burr projecting from a plane 1 toward a plane 4 in a boundary between the plane 1 and the plane 4, a rotary polygon mirror rotates so that the light flux from the light source is made incident on the plane 4 to the plane 1.
摘要翻译：要解决的问题：提供一种紧凑的光学扫描仪，而不会降低图像质量。解决方案：在与光学偏转器的旋转轴正交的平面上的正交投影中，入射在光学偏转器上的光束的宽度小于宽度的光偏转器的一个偏转反射面。当由光学偏转器偏转的光束向同步检测传感器行进时，入射光束的一部分被光学偏转器反射，朝向写入开始位置行进，并朝向写入端位置移动。当在平面1和平面4之间的边界处存在从平面1向平面4突出的毛刺时，旋转多面镜旋转，使得来自光源的光束入射到平面4上的平面 1。

9. 发明专利

JP2014017725A Document illumination device, image reading device, and image forming apparatus 审中-公开
标题翻译：文件照明装置，图像读取装置和图像形成装置
公开(公告)号：JP2014017725A
公开(公告)日：2014-01-30
申请号：JP2012154680
申请日：2012-07-10
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SHIBAYAMA YASUYUKI , MIYAGAKI KAZUYA , TAKAURA ATSUSHI , ONO NOBUAKI , AKATSU KAZUHIRO , SAKURAI YASUO
IPC分类号： H04N1/04 , G02B6/00 , G03B27/54 , H04N1/028
摘要： PROBLEM TO BE SOLVED: To provide a document illumination device that reduces the size and installation space thereof, and can suppress the occurrence of illuminance unevenness and a reduction in light utilization efficiency to efficiently illuminate an illumination area.SOLUTION: A document illumination device of an image reading device includes at least: a light source 41; an illumination optical system that has a light guide body guiding light emitted from the light source to a reading area of a document; an image forming optical system that focuses light reflected on the document into an image; and an image reading element that reads an image of the document. The light guide body 43 has an incident end face 43a on which the light emitted from the light source 41 is made incident, an emission end face 43b from which the incident light emits, and a protrusion 48 that is provided in an area including an outer periphery of the emission end face 43b and comes into contact with a member for holding the light guide body 43. The protrusion 48, when a length of a direction of travel of light is L, a thickness of a most protruding portion is t, and the refractive index of the light guide body 43 is n, has a shape that satisfies L≤t×tan{cos-1(1/n)}.
摘要翻译：要解决的问题：提供减小其尺寸和安装空间的文件照明装置，并且可以抑制照度不均匀的发生和光利用效率的降低，以有效地照射照明区域。解决方案：一种文档照明装置，图像读取装置至少包括：光源41; 照明光学系统，其具有将从所述光源发射的光引导到文件的读取区域的导光体; 将反射在文档上的光聚焦成图像的图像形成光学系统; 以及读取文档的图像的图像读取元件。导光体43具有从光源41射出的光入射的入射端面43a，入射光从其射出的发射端面43b，以及设置在包括外部的区域的区域发光端面43b的周边与保持导光体43的构件接触。突起48当光的行进方向的长度为L时，最突出部分的厚度为t，并且导光体43的折射率为n，具有满足L≤t×tan {cos-1（1 / n）}的形状。

10. 发明专利

JP2014007553A Lighting device, image reading apparatus, and image forming apparatus 审中-公开
标题翻译：照明装置，图像读取装置和图像形成装置
公开(公告)号：JP2014007553A
公开(公告)日：2014-01-16
申请号：JP2012141764
申请日：2012-06-25
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
IPC分类号： H04N1/04 , G03B27/54 , H01L33/50 , H01L33/58 , H04N1/028 , H04N1/10 , H04N1/107
摘要： PROBLEM TO BE SOLVED: To reduce chromaticity unevenness and generation of flare light caused by light reflected from an original surface.SOLUTION: A lighting device 10 comprises: a light source 1 including an LED chip 1a which generates light in a first color, and a yellow phosphor 1c which is excited by the light from the LED chip 1a so as to generate light in a second color different from the first color; a light guide member 3 including an incident surface 31 to which the light in the first color and the light in the second color from the light source 1 is incident, a light guide part 32 which guides the light in the first color and the light in the second color that are incident from the incident surface 31 into a second direction orthogonal to a first direction, an emission surface 34 which emits the light in the first color and the light in the second color that propagate in the light guide part 32 into a third direction orthogonal to the first direction and the second direction, and a reflection part 4 which reflects the light in the first color and the light in the second color in the light guide part 32 toward the emission surface; and a diffusion member 11 which is arranged on a light path of light returning from an irradiated surface to the light guide member 3.
摘要翻译：要解决的问题：减少由原始表面反射的光引起的色度不均匀和产生耀斑光。解决方案：照明装置10包括：光源1，其包括产生第一颜色的光的LED芯片1a和黄色荧光体1c，其由来自LED芯片1a的光激发，以产生不同于第一颜色的第二颜色的光; 导光构件3，其包括入射表面31，第一颜色的光和来自光源1的第二颜色的光入射到该入射表面31;导光部32，其将第一颜色的光和第一颜色的光引导到从入射表面31入射到与第一方向正交的第二方向的第二颜色，将第一颜色的光发射的发射表面34和在导光部32中传播的第二颜色的光成为第三方向与第一方向和第二方向正交;以及反射部4，其将导光部32中的第一颜色的光和第二色的光反射到发射面; 以及漫射构件11，其布置在从照射表面返回到导光构件3的光的光路上。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式