Light-emitting device and image forming apparatus

    公开(公告)号:US11743407B2

    公开(公告)日:2023-08-29

    申请号:US17714359

    申请日:2022-04-06

    发明人: Tatsuya Suzuki

    IPC分类号: H04N1/028 H04N1/00 G03G15/04

    摘要: A plurality of groups are arranged in a light emitting device. Each of the groups includes a plurality of light-emitting elements, a plurality of transistors arranged corresponding to the plurality of light-emitting elements and configured to supply current to the plurality of light-emitting elements, and a group control transistor configured to control current flowing through the plurality of transistors. The plurality of groups have a first group and a second group. The first group has a plurality of light-emitting elements. The second group has a plurality of light-emitting elements. A light-emitting element of the second group is arranged between one light-emitting element of the first group and the other light-emitting element of the first group.

    Dual-slope light guide, light source module and optical assembly for scanner
    2.
    发明授权
    Dual-slope light guide, light source module and optical assembly for scanner 有权
    双坡光导,光源模块和扫描仪光学组件

    公开(公告)号:US09288357B2

    公开(公告)日:2016-03-15

    申请号:US14494937

    申请日:2014-09-24

    申请人: AVISION INC.

    IPC分类号: H04N1/04 H04N1/028 F21V8/00

    摘要: A dual-slope light guide includes a first surface, a second surface and a curved surface. The first surface has first reflecting structures. The second surface, connected to the first surface, has second reflecting structures. An included angle between the first surface and the second surface is unequal to 180 degrees. The curved surface connects the first surface to the second surface. The first surface, the second surface and the curved surface extend from a first end of the light guide to a second end of the light guide. A light beam incident to the first end of the light guide is reflected and converted by the first reflecting structure and the second reflecting structure into linear light emitted from the curved surface. A light source module and an optical assembly for a scanner are also disclosed.

    摘要翻译: 双斜面光导包括第一表面,第二表面和曲面。 第一表面具有第一反射结构。 连接到第一表面的第二表面具有第二反射结构。 第一表面和第二表面之间的夹角不等于180度。 曲面将第一表面连接到第二表面。 第一表面,第二表面和弯曲表面从光导的第一端延伸到光导的第二端。 入射到光导的第一端的光束被第一反射结构和第二反射结构反射并转换为从弯曲表面发射的线性光。 还公开了一种用于扫描仪的光源模块和光学组件。

    Illumination device, image reading apparatus, and image forming apparatus
    3.
    发明授权
    Illumination device, image reading apparatus, and image forming apparatus 有权
    照明装置,图像读取装置和图像形成装置

    公开(公告)号:US08908238B2

    公开(公告)日:2014-12-09

    申请号:US14218778

    申请日:2014-03-18

    发明人: Yoshihiko Kurotsu

    IPC分类号: H04N1/04 H04N1/028 F21V8/00

    摘要: In an illumination device that radiates light to an object to be irradiated placed on a predetermined placement surface, a first light guide body has a first incident surface located at an end thereof in a first direction, which receives light along the first direction, and a first exit surface extending along the first direction, which emits the light in a second direction crossing the first direction, thereby radiating light to the object to be irradiated, from the second direction, and a second light guide body has a second incident surface located at an end thereof in the first direction, which receives light along the first direction, and a second exit surface extending along the first direction, which emits the light in a third direction crossing the first direction and the second direction, thereby radiating light to the object to be irradiated, from the third direction.

    摘要翻译: 在将光照射到放置在预定放置面上的被照射体的照明装置中,第一导光体具有位于其沿着第一方向的光的第一方向的端部的第一入射面, 第一出射面沿着第一方向延伸,其沿与第一方向交叉的第二方向发射光,从而从第二方向向被照射物体照射光,第二导光体具有位于第二方向的第二入射面 沿着第一方向接收光的端部和沿着第一方向延伸的第二出射面,其沿与第一方向和第二方向交叉的第三方向发光,从而将光照射到物体上 从第三方向照射。

    Backlight controlled closeup photographing system
    4.
    发明申请
    Backlight controlled closeup photographing system 失效
    背光控制特写摄影系统

    公开(公告)号:US20040119873A1

    公开(公告)日:2004-06-24

    申请号:US10459751

    申请日:2003-06-12

    IPC分类号: H04N005/225 H04N005/235

    摘要: A backlight controlled closeup photographing system is proposed, which is designed for use with a multimedia-capable information platform, such as an MMV (MultiMedia Viewer) device, to allow the user to photograph a small object, such as a business card, at close range with intensified illumination on the object for the purpose of allowing the photographed digital image to have adequate brightness in picture quality. The proposed backlight controlled closeup photographing system is characterized by the use of backlight control to increase the intensity of the backlight illumination on the object being photographed for the purpose of allowing the photographed digital image to have adequate brightness in picture quality. Since the intensity of illumination on the object can be increased without using flash unit, the invention is apparently more cost-effective and advantageous to use than prior art.

    摘要翻译: 提出了一种背光控制的特写摄影系统,其被设计为与诸如MMV(多媒体查看器)设备的多媒体功能信息平台一起使用,以允许用户近距离地拍摄诸如名片的小物体 其目的在于允许拍摄的数字图像在图像质量上具有足够的亮度。 所提出的背光控制特写摄影系统的特征在于使用背光控制来增加拍摄对象上的背光照明的强度,以便允许拍摄的数字图像具有足够的图像质量亮度。 由于可以在不使用闪光单元的情况下增加物体上的照明强度,所以与现有技术相比,本发明显然更具成本效益并且更有利。

    Flat panel illuminator active transparency adapter
    5.
    发明授权
    Flat panel illuminator active transparency adapter 失效
    平板照明器有源透明适配器

    公开(公告)号:US06614563B1

    公开(公告)日:2003-09-02

    申请号:US09281600

    申请日:1999-03-30

    IPC分类号: H04N104

    摘要: A transparency adaptor is described that includes a flat panel illuminator within the scanner lid of the scanner. The flat panel illuminator provides backlighting for scanning transparencies, such that light passes through the transparency only once and into the scanner optics within the scanner base. When the flat panel illuminator is lit during a scanning process, the light source within the scanner is not lit. In a second embodiment, the flat panel illuminator is removeably attached to the scanner lid. Another alternative is for the flat panel illuminator adapter to be a separate from the scanner, such that it is placed over a transparent document when needed, either plugging into the scanner or a separate power source during the scanning process.

    摘要翻译: 描述了一种透明度适配器,其包括在扫描器的扫描仪盖内的平板照明器。 平板照明器提供用于扫描透明胶片的背光,使得光仅透过透明物一次并进入扫描器底座内的扫描器光学元件。 当扫描过程中平板照明器亮起时,扫描仪内的光源不亮。 在第二实施例中,平板照明器可移除地附接到扫描器盖。 另一个替代方案是使平板照明器适配器与扫描器分离,使得当需要时将其放置在透明文档上,或者在扫描过程中插入扫描仪或单独的电源。

    Film scanner
    6.
    发明授权
    Film scanner 失效
    电影扫描仪

    公开(公告)号:US06486980B1

    公开(公告)日:2002-11-26

    申请号:US09332506

    申请日:1999-06-14

    申请人: Keiji Sawanobori

    发明人: Keiji Sawanobori

    IPC分类号: H04N104

    摘要: A film scanner for electronically scanning an image recorded on a photographic film, includes an image scanner unit, a liquid crystal display (LCD) unit, and a back-light unit in a body. The back-light radiates a light from a top surface of the body, and the film is slidably supported on the top surface. The image scanner unit scans the image of the film illuminated by the back-light unit. The liquid crystal display (LCD) unit illuminated by the back-light unit, displays the image scanned by the image scanner unit. The LCD unit is pivotably removable from the top surface, such that the film is disclosed.

    摘要翻译: 一种用于电子扫描记录在摄影胶片上的图像的胶片扫描器,包括一个图像扫描器单元,一个液晶显示器(LCD)单元和一个背光单元。 背光从身体的顶表面照射光,并且膜可滑动地支撑在顶表面上。 图像扫描仪单元扫描由背光单元照射的胶片的图像。 由背光单元照亮的液晶显示器(LCD)单元显示由图像扫描器单元扫描的图像。 LCD单元从顶表面可枢转地移除,使得公开了该膜。

    Optical scanner
    7.
    发明申请
    Optical scanner 审中-公开
    光学扫描仪

    公开(公告)号:US20020159099A1

    公开(公告)日:2002-10-31

    申请号:US09842851

    申请日:2001-04-27

    IPC分类号: H04N001/04

    摘要: An optical scanner consists of a plurality of linear scanning light sources, a plurality of scattering lens boards, a plurality of linear image capturing units and a plurality of converging lens boards. The linear scanning light sources and image capturing units are laid in a staggered fashion on a circuit board to form a plane about the size of the scanning object. The scattering lens boards scatter light for the light sources to project evenly on the scanning object. The converging lens boards converge image reflecting from the scanning object to facilitate the linear image capturing units to capture the object image.

    摘要翻译: 光学扫描器由多个线性扫描光源,多个散射透镜板,多个线性图像捕获单元和多个会聚透镜板组成。 线性扫描光源和图像捕获单元以交错方式铺设在电路板上以形成围绕扫描对象的尺寸的平面。 散射透镜板散射光源以使光源均匀地投射在扫描对象上。 会聚透镜板会聚从扫描对象反射的图像,以方便线性图像捕获单元捕获对象图像。

    Image sensing apparatus
    8.
    发明授权
    Image sensing apparatus 失效
    影像传感装置

    公开(公告)号:US06339447B1

    公开(公告)日:2002-01-15

    申请号:US08608690

    申请日:1996-02-29

    IPC分类号: H04N5253

    摘要: An image sensing apparatus has an image sensing unit and a display unit. The image sensing unit has an optical system for photographing an object and an image sensing element. The display unit has a liquid crystal display device for performing an image display on the basis of a video output from the image sensing unit. A film fixing unit holds the image sensing unit and the display unit at a predetermined distance and also forms a mounting unit for mounting the object on the display surface of the display unit. A film holder for holding a film as an object is mounted on the mounting unit, and a film photographing operation is performed by the image sensing unit while using the display unit as an illumination device.

    摘要翻译: 图像感测装置具有图像感测单元和显示单元。 图像感测单元具有用于拍摄物体和图像感测元件的光学系统。 显示单元具有用于基于来自图像感测单元的视频输出执行图像显示的液晶显示装置。 胶片定影单元将图像感测单元和显示单元保持在预定距离,并且还形成用于将物体安装在显示单元的显示表面上的安装单元。 用于将胶片保持为物体的胶片保持器安装在安装单元上,并且在使用显示单元作为照明装置的同时由图像感测单元执行胶片拍摄操作。

    Photographic Image acquisition device using LED chips
    9.
    发明申请
    Photographic Image acquisition device using LED chips 审中-公开
    摄影图像采集器采用LED芯片

    公开(公告)号:US20010048814A1

    公开(公告)日:2001-12-06

    申请号:US09864188

    申请日:2001-05-25

    IPC分类号: G03B017/00

    摘要: A photographic image acquisition device is disclosed including a light source in the form of an LED chip array having a plurality of LED chips, a photographic medium positioning member for positioning a photographic medium at a predefined position, a projecting lens for projecting the image information on the photographic medium onto a detecting member and for exposing said detecting member, and a light transmitting and averaging member positioned between the LED chip array and the predefined position. The device provides faster image acquisition with a relatively simple mechanical construction.

    摘要翻译: 公开了一种摄影图像采集装置,其包括具有多个LED芯片的LED芯片阵列形式的光源,用于将照相介质定位在预定位置的照相媒体定位部件,用于将图像信息投影到 所述照相介质到检测构件上并用于曝光所述检测构件,以及位于所述LED芯片阵列和所述预定位置之间的光透射平均构件。 该设备通过相对简单的机械结构提供更快的图像采集。

    Optical scanner with a curved bulb
    10.
    发明授权
    Optical scanner with a curved bulb 失效
    具有弯曲灯泡的光学扫描仪

    公开(公告)号:US6037582A

    公开(公告)日:2000-03-14

    申请号:US902818

    申请日:1997-07-30

    摘要: A line-focus system with a curved fluorescent bulb for directing light from the curved fluorescent bulb toward the scan line in the line-focus system. The curved fluorescent bulb is shaped in such a manner that the light intensity across the photosensor line array in the line-focus system is relatively uniform and the length of the light bulb is shorter than straight light bulbs with end sockets at both ends of the light bulb. The curved fluorescent bulb may be C-shaped, U-shaped or towel bar-shaped.

    摘要翻译: 具有弯曲荧光灯的线对焦系统,用于将来自弯曲荧光灯的光导向线对焦系统中的扫描线。 弯曲的荧光灯的形状使得线对焦系统中的光电传感器阵列上的光强度相对均匀,并且灯泡的长度短于在光的两端具有端部插座的直的灯泡 灯泡。 弯曲的荧光灯泡可以是C形,U形或毛巾条形。