公开(公告)号：US11858204B2

公开(公告)日：2024-01-02

申请号：US17581046

申请日：2022-01-21

申请人： EOS GmbH Electro Optical Systems

发明人： Thomas Mattes ,  Stefan Paternoster ,  Gerd Cantzler ,  Jochen Philippi ,  Stephan Gronenborn ,  Gero Heusler ,  Holger Moench ,  Ralf Conrads

IPC分类号： B29C64/153 ,  B29C64/277 ,  B41J2/45 ,  B29C64/268 ,  B29C64/282 ,  B29C64/386 ,  B29C64/20 ,  B22F12/42 ,  B22F12/45 ,  B22F12/47 ,  B22F12/49 ,  B22F12/00 ,  B29C64/25 ,  B22F12/44 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B23K26/064 ,  B23K26/342 ,  B23K26/08 ,  B41J2/455 ,  H01S5/00 ,  H01S5/42 ,  G03G15/22 ,  B22F10/28

CPC分类号： B29C64/153 ,  B22F12/38 ,  B22F12/42 ,  B22F12/44 ,  B22F12/45 ,  B22F12/47 ,  B22F12/49 ,  B23K26/064 ,  B23K26/0853 ,  B23K26/342 ,  B29C64/20 ,  B29C64/25 ,  B29C64/268 ,  B29C64/277 ,  B29C64/282 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B41J2/451 ,  B41J2/455 ,  H01S5/0071 ,  H01S5/423 ,  B22F10/28 ,  G03G15/225

摘要： The invention describes a laser printing system (100) for illuminating an object moving relative to a laser module of the laser printing system (100) in a working plane (180), the laser module comprising at least two laser arrays of semiconductor lasers and at least one optical element, wherein the optical element is adapted to image laser light emitted by the laser arrays, such that laser light of semiconductor lasers of one laser array is imaged to one pixel in the working plane of the laser printing system, and wherein the laser printing system is a 3D printing system for additive manufacturing and wherein two, three, four or a multitude of laser modules (201, 202) are provided, which are arranged in columns (c1, c2) perpendicular to a direction of movement (250) of the object in the working plane (180), and wherein the columns are staggered with respect to each other such that a first laser module (201) of a first column of laser modules (c1) is adapted to illuminate a first area (y1) of the object and a second laser module (202) of a second column (c2) of laser modules is adapted to illuminate a second area (y2) of the object, wherein the first area (y1) is adjacent to the second area (y2) such that continuous illumination of the object is enabled.

公开(公告)号：US11822071B2

公开(公告)日：2023-11-21

申请号：US17526866

申请日：2021-11-15

申请人： Zhuhai Pantum Electronics Co., Ltd.

发明人： Ronghua Li ,  Chao Wang ,  Dongning Wang

IPC分类号： G02B26/08 ,  G02B26/12 ,  G02B27/42 ,  G03G15/04 ,  G03G15/043 ,  B41J2/44 ,  B41J2/45 ,  B41J2/455 ,  B41J2/47

CPC分类号： G02B26/125 ,  B41J2/442 ,  B41J2/451 ,  B41J2/455 ,  B41J2/473 ,  G02B26/0816 ,  G02B26/123 ,  G02B26/124 ,  G02B26/127 ,  G02B27/4227 ,  G03G15/0435

摘要： Optical scanner and electrophotographic image forming device are provided. The optical scanner includes a light source; and a first optical unit, a deflection apparatus, and an f-θ lens, which are sequentially arranged along a primary optical axis direction of a light beam emitted from the light source. The light beam emitted from the light source is focused onto a scanning target surface after sequentially passing through the first optical unit, the deflection apparatus, and the f-θ lens. Optical scanning directions of the light beam emitted from the light source include a primary scanning direction and a secondary scanning direction which are perpendicular to each other, and along the primary scanning direction, the f-θ lens satisfies following expressions: SAG1>0, SAG2>0, and 0

公开(公告)号：US10001720B2

公开(公告)日：2018-06-19

申请号：US15410747

申请日：2017-01-19

申请人： Oki Data Corporation

发明人： Akihiro Yamamura

IPC分类号： G03G15/04 ,  H04N1/401 ,  H04N1/028 ,  B41J2/45

CPC分类号： G03G15/04036 ,  B41J2/451 ,  G03G15/04054 ,  G03G15/0409 ,  G03G2215/0141 ,  H04N1/02885 ,  H04N1/401 ,  H04N2201/0094

摘要： An exposure unit includes a light-emitting element array and a lens array. The light-emitting element array includes a plurality of light-emitting elements that are disposed in a first direction and each emit a light beam. The lens array faces the light-emitting element array in a second direction that is orthogonal to the first direction, and focuses the light beams emitted from the respective light-emitting elements. The following expression [3] is satisfied. A symmetric property, determined from the following expression [1], of a light amount distribution in the first direction of at least one of the light beams focused by the lens array satisfies the following expression [2]. S=|(HL−HR)/(XE/2)|  [1] 0≤S≤0.65  [2] Lo≠LB  [3]

公开(公告)号：US20180086103A1

公开(公告)日：2018-03-29

申请号：US15709735

申请日：2017-09-20

申请人： Oki Data Corporation

发明人： Tomoki IGARI

IPC分类号： B41J2/45 ,  H01L33/60 ,  G03G15/043

CPC分类号： B41J2/451 ,  G03G15/04054 ,  G03G15/043 ,  G03G2215/0409 ,  H01L27/153 ,  H01L33/60 ,  H04N1/00

摘要： An LED head includes a base material having one or more wiring pattern formation surfaces and one or more metal wiring patterns formed on the one or more wiring pattern formation surfaces. When the occupancy ratio of the one or more metal wiring patterns in a first region of a substrate is A, and the occupancy ratio of the one or more metal wiring patterns in a second region of the substrate is B, the LED head satisfies 0.75≦A/B≦1 or 0.75≦B/A≦1.

公开(公告)号：US09772576B1

公开(公告)日：2017-09-26

申请号：US15151727

申请日：2016-05-11

申请人： Eastman Kodak Company

发明人： Michael Thomas Dobbertin ,  Richard G. Luther

IPC分类号： G03G15/04 ,  B41J2/00 ,  H04N1/00 ,  B41J2/45 ,  H04N1/024 ,  G03G15/32

CPC分类号： G03G15/04054 ,  B41J2/45 ,  B41J2/451 ,  G03G15/04045 ,  G03G15/0409 ,  G03G15/326 ,  G03G2215/0409 ,  H04N1/02409

摘要： A focus adjustment mechanism for adjusting a focus position of a printhead includes a rotatable pin that is rotatable around a pin axis. The rotatable pin includes a cam section located having a surface whose radial distance from the pin axis varies around its perimeter, and a gripping feature. An adjustment plate includes a gripping feature and is adapted to fit over and engage with the gripping feature of the rotatable pin such that the adjustment plate rotates together with the rotatable pin. A fastener fastens the adjustment plate to a support structure when the adjustment plate is positioned in a desired orientation. The printhead includes a frame feature which is pulled firmly against the cam section of the rotatable pin such that as the rotatable pin is rotated the frame feature rides on the surface of the cam section thereby adjusting the focus position of the printhead.

公开(公告)号：US09261698B2

公开(公告)日：2016-02-16

申请号：US13601249

申请日：2012-08-31

申请人： Kazunori Watanabe ,  Keiichi Serizawa ,  Hiroshi Johno

发明人： Kazunori Watanabe ,  Keiichi Serizawa ,  Hiroshi Johno

IPC分类号： G02B26/12 ,  B41J2/44 ,  B41J2/45 ,  B41J2/47

CPC分类号： G02B26/124 ,  B41J2/442 ,  B41J2/451 ,  B41J2/473 ,  G02B26/121 ,  G02B26/123

摘要： An optical scanner includes a light source for projecting a light beam against a target, a deflector for deflecting the light beam, a coupling lens, an optical element, a light source support member, and a housing. The coupling lens directs the light beam to the deflector. The optical element focuses the light beam deflected by the deflector into a desired shape. The light source support member supports the light source. The housing houses the light source supported by the light source support member, the deflector, and the optical elements. The housing includes at least two coupling lens mounts on which the coupling lens is fixed on an optical path between the light source and the target, and accommodates multiple light source support members. The coupling lens is fixed to the coupling lens mount using an adhesive agent after an optical axis of the light beam is aligned.

摘要翻译： 光学扫描仪包括用于将光束投射到目标的光源，用于偏转光束的偏转器，耦合透镜，光学元件，光源支撑构件和壳体。 耦合透镜将光束引导到偏转器。 光学元件将由偏转器偏转的光束聚焦成期望的形状。 光源支撑构件支撑光源。 壳体容纳由光源支撑构件，偏转器和光学元件支撑的光源。 壳体包括至少两个联接透镜安装件，耦合透镜固定在光源和目标之间的光路上，并容纳多个光源支撑构件。 在光束的光轴对准之后，耦合透镜使用粘合剂固定到耦合透镜支架。

公开(公告)号：US20150165785A1

公开(公告)日：2015-06-18

申请号：US14132431

申请日：2013-12-18

申请人： Xerox Corporation

发明人： John R. Washington ,  Charlotte E. Przeslak

IPC分类号： B41J2/45 ,  G03G15/043

CPC分类号： B41J2/451 ,  B41J2/447 ,  G03G15/043 ,  G03G15/5041

摘要： A method is provided for automatically positioning a print head (12) relative to a photoreceptor (14) in a xerographic print engine (10). The method includes: operating the print head (12) to produce an indicia in a latent image formed on the photoreceptor (14); measuring a dimension of the indicia; and automatically positioning the print head (12) relative to the photoreceptor (14) in response to a result of the measuring.

摘要翻译： 提供了一种用于相对于静电印刷引擎（10）中的感光体（14）自动定位打印头（12）的方法。 该方法包括：操作打印头（12）以在感光体（14）上形成的潜像中产生标记; 测量标记的尺寸; 并且响应于测量的结果自动地将打印头（12）相对于感光体（14）定位。

公开(公告)号：US08963977B2

公开(公告)日：2015-02-24

申请号：US13921800

申请日：2013-06-19

申请人： Canon Kabushiki Kaisha

发明人： Yasutomo Furuta

IPC分类号： B41J2/435 ,  G03G13/04 ,  G03G13/01 ,  B41J2/45 ,  G03G15/043

CPC分类号： G03G13/04 ,  B41J2/451 ,  G03G13/01 ,  G03G15/043 ,  G03G2215/0409

摘要： An image forming apparatus includes a light source including a plurality of light emitting elements for emitting a light beam for exposing the photosensitive member, the light emitting elements being arranged respectively corresponding to one pixel of the image in a direction of a rotational axis of the photosensitive member, an output unit for outputting pixel data for driving each of the light emitting elements, a drive unit for driving the light emitting elements based on the output pixel data, a storage unit for storing a cumulative number of times of light emission of a target light emitting element included in the light emitting elements, and a light amount control unit for controlling a light amount of a light beam emitted by the target light emitting element and the other light emitting elements based on the stored cumulative number of times of light emission of the target light emitting element.

摘要翻译： 图像形成装置包括：光源，包括用于发射用于曝光感光构件的光束的多个发光元件，发光元件分别对应于图像的一个像素沿着感光体的旋转轴的方向 用于输出用于驱动每个发光元件的像素数据的输出单元，用于基于输出像素数据驱动发光元件的驱动单元，用于存储目标的发光累积次数的存储单元 包含在发光元件中的发光元件，以及光量控制单元，用于基于存储的累积发光次数来控制由目标发光元件和其它发光元件发射的光束的光量 目标发光元件。

公开(公告)号：US08816357B2

公开(公告)日：2014-08-26

申请号：US11362652

申请日：2006-02-27

申请人： Kazuya Utsugi ,  Toshikazu Suzuki

发明人： Kazuya Utsugi ,  Toshikazu Suzuki

IPC分类号： H01L27/15

CPC分类号： B41J2/451

摘要： An optical printer head has an array of lenses that project light emitted by an array of LEDs onto a charged photosensitive drum to form a latent image on the drum surface. A resin film adhered to the exposed surfaces of the lenses prevents chemical reaction between nitric acid, formed as a consequence of ozone produced during electric charging of the photosensitive drum, and alkali components on the surfaces of the lenses thereby preventing clouding of the lens surfaces and dimming of the projected light. The resin film has a thickness of 10 to 100 microns and may be formed of polyvinyl chloride, polyethylene terephthalate or polymethyl meta acrylate.

摘要翻译： 光学打印头具有透镜阵列，其将由LED阵列发射的光投射到带电感光鼓上以在鼓表面上形成潜像。 粘附到透镜的暴露表面的树脂膜防止由于在感光鼓的充电期间产生的臭氧形成的硝酸和透镜表面上的碱成分之间的化学反应，从而防止透镜表面的混浊， 调光投光。 树脂膜的厚度为10〜100微米，可以由聚氯乙烯，聚对苯二甲酸乙二醇酯或聚甲基丙烯酸甲酯形成。

公开(公告)号：US08786654B2

公开(公告)日：2014-07-22

申请号：US13632504

申请日：2012-10-01

申请人： Tomohiro Nakajima

发明人： Tomohiro Nakajima

IPC分类号： B41J2/385 ,  B41J2/39 ,  B41J15/14 ,  B41J27/00 ,  B41J2/45

CPC分类号： B41J2/451 ,  G03G15/04054

摘要： An optical print head having a substrate on which multiple light sources aligned in a main scanning direction are mounted to emit beams of light in a direction perpendicular to a surface of the substrate; a lens array to focus the beams of light on an image bearing member to form an image thereon; a housing having a guiding portion extending in the main scanning direction to position the substrate and the lens array; a cleaner to clean a light-emitting surface of the lens array while moving in the main scanning direction; a moving device to move the cleaner; and a supporting member to support the housing and the cleaner. The supporting member rotatably supports the cleaner about a shaft and the guiding portion contacts the cleaner against the light-emitting surface of the lens array with a constant force over the main scanning direction during cleaning of the light-emitting surface.

摘要翻译： 一种光学打印头，其具有在主扫描方向上对准多个光源的基板，以在与基板的表面垂直的方向上发射光束; 透镜阵列，用于将光束聚焦在图像承载部件上以在其上形成图像; 壳体，其具有沿主扫描方向延伸的引导部分，以定位基板和透镜阵列; 清洁器，用于在主扫描方向上移动时清洁透镜阵列的发光表面; 移动装置移动清洁剂; 以及用于支撑壳体和清洁器的支撑构件。 支撑构件围绕轴可旋转地支撑清洁器，并且在清洁发光表面期间，引导部分在主扫描方向上以恒定的力力接触清洁器抵靠透镜阵列的发光表面。