AN ILLUMINATION UNIT AND A METHOD FOR POINT ILLUMINATION OF A MEDIUM
    112.
    发明公开
    AN ILLUMINATION UNIT AND A METHOD FOR POINT ILLUMINATION OF A MEDIUM 失效
    照明器和方法要点过度暴露一个支持

    公开(公告)号:EP1027630A1

    公开(公告)日:2000-08-16

    申请号:EP98914847.3

    申请日:1998-04-14

    申请人: DICON A/S

    IPC分类号: G03F7/207

    摘要: The invention relates to at least one light emitter which is arranged to illuminate at least one illumination face via a microshutter arrangement, said microshutter arrangement comprising at least one microshutter, each microshutter comprising a transillumination hole and an electrically activatable diaphragm device associated with it, at least one of the light emitters being arranged to illuminate at least two microshutters via a first lens arrangement, said lens arrangement comprising at least one microlens arranged with respect to each microshutter so that the light emitted by the light emitter or emitters is focused in the individual microshutters. According to the invention it is possible to achieve an illumination over very large areas with an unprecedentedly high and homogeneous illumination intensity on an illumination face.

    AN APPARATUS AND A METHOD FOR ILLUMINATING A LIGHT-SENSITIVE MEDIUM
    114.
    发明公开
    AN APPARATUS AND A METHOD FOR ILLUMINATING A LIGHT-SENSITIVE MEDIUM 失效
    装置和方法用于照亮感光介质

    公开(公告)号:EP0976008A1

    公开(公告)日:2000-02-02

    申请号:EP98914846.5

    申请日:1998-04-14

    申请人: DICON A/S

    IPC分类号: G02F1/1335 H04N9/31

    摘要: The invention relates to an illumination unit for point illumination of a medium comprising a plurality of light emitters in the form of light guides, which are arranged to illuminate at least one illumination face via a light valve arrangement, said light valve arrangement comprising a plurality of electrically controlled light valves, at least one of the light emitters (1) being arranged to illuminate a plurality of light valves.

    SURFACE LIGHT-EMITTING ELEMENT AND SELF-SCANNING TYPE LIGHT-EMITTING DEVICE
    116.
    发明公开
    SURFACE LIGHT-EMITTING ELEMENT AND SELF-SCANNING TYPE LIGHT-EMITTING DEVICE 失效
    表面发射器和自发光装置

    公开(公告)号:EP0852817A1

    公开(公告)日:1998-07-15

    申请号:EP96931293.0

    申请日:1996-09-24

    IPC分类号: B41J2 H01L27 H01L33

    摘要: A surface light-emitting element having improved external light emission efficiency and a self-scanning light-emitting device using this surface light-emitting element are provided. To improve external light-emission efficiency, the light-emitting center is shifted to an area where there is no light shielding layer thereon. To achieve this, an insulating layer (47) is provided on the electrode portion above which there is a light-shielding layer at a portion making contact with the semiconductor layer thereunder so as to prevent the injected current from flowing from that electrode portion. To increase the amount of light emission, the peripheral length of the electrode is increased. With an electrode of the same area, the larger the peripheral length, the larger becomes the amount of light emission because the current injected from the electrode is distributed evenly over the entire surface, causing light to emit evenly. When the surface light-emitting element is a surface light-emitting thyristor of the PNPN structure, it is necessary to have such a construction that part of the injected current is prevented from flowing toward the gate electrode (41) to improve external light emission efficiency. The self-scanning light-emitting device of this invention is accomplished by using this type of surface light-emitting element.

    Optical head unit
    118.
    发明公开
    Optical head unit 失效
    Optische Kopfeinheit。

    公开(公告)号:EP0663662A2

    公开(公告)日:1995-07-19

    申请号:EP94304950.2

    申请日:1994-07-05

    摘要: An optical head unit including a light emitting array (32), a mirror (34), a light receiving array (46), an objective lens (36), a light sensitive sheet (38) for recording information and a moving device (40) for moving the sheet, for enabling writing/reading of information on the sheet when stationary. The mirror (34) and the objective lens (36) are integrally mounted on a drive portion (38), and the light emitting array (32) and the light receiving array (46) are formed in a stationary portion with the drive portion and the stationary portion constituting the optical head unit.

    摘要翻译: 一种光头单元,包括发光阵列(32),反射镜(34),光接收阵列(46),物镜(36),用于记录信息的光敏片(38)和移动装置 )用于移动纸张,以便在静止时能够在纸张上写入/读取信息。 反射镜(34)和物镜(36)一体地安装在驱动部分(38)上,并且发光阵列(32)和光接收阵列(46)与驱动部分形成在静止部分 构成光头单元的固定部分。

    Apparatus for optically writing information
    119.
    发明公开
    Apparatus for optically writing information 失效
    用于光学书写信息的装置

    公开(公告)号:EP0600853A3

    公开(公告)日:1994-07-06

    申请号:EP94200320.3

    申请日:1989-06-20

    申请人: ROHM CO., LTD.

    IPC分类号: H04N1/18 G06K15/12

    摘要: An apparatus is provided for optically writing or reading information comprising a row of optical dot array chips each including a plurality of optical dot elements constantly arranged in the direction of the row. The respective array chips are driven by separate control circuits (IC) each incorporating a plurality of drive transistors (TR1-TR64) for driving the respective optical dot elements of a corresponding array chip. Each control circuit further incorporates a gate voltage setting circuit (27) which applies an adjustable gate voltage (VG) to the respective drive transistors (TR1-TR64). The gate voltage setting circuit (27) comprising a plurality of parallel voltage dividing resistors (R1-R7) which are selectively incorporated into said gate voltage setting circuit (27).

    摘要翻译: 一种用于光学写入信息的设备包括一排纵向隔开的LED阵列芯片(5),与该芯片行平行布置的感光表面(3)和布置在芯片行和感光体之间的透镜系统(4) 表面。 每个阵列芯片具有不间断的LED以提供发光点。 透镜系统包括以相应的阵列芯片对应的方式布置的凸透镜元件(8),以相反排列形成感光表面上相应阵列芯片的发光点的放大图像,使得所有的点图像 感光表面是恒定间隔的。

    LED exposure head
    120.
    发明公开
    LED exposure head 失效
    LED-Belichtungskopf。

    公开(公告)号:EP0507366A1

    公开(公告)日:1992-10-07

    申请号:EP92200619.2

    申请日:1992-03-03

    IPC分类号: G06K15/12

    CPC分类号: B41J2/451 G06K15/1247

    摘要: A LED exposure head for use in a recording device for linewise recording information on a moving photoconductor, which comprises a metal base plate (38) onto which are mounted a row of LED dice (39) along the centre, rows of integrated circuit chips (41, 42) and printed circuit boards (43, 44) outside of such rows of integrated circuit chips, and optical imaging means (30) for focussing the image of the LED's in the image plane of the photoconductor. The base plate has a raised rib (52) for mounting the LED dice at a height above the base which is such that their electric bonding pads (53, 54) are at a level above that of the corresponding bonding pads (55, 56) of the integrated circuit chips (41, 42).

    摘要翻译: 一种用于记录装置的LED曝光头,用于在移动的光电导体上进行线性记录信息,该曝光头包括金属基板(38),沿着中心安装有一列LED骰子(39),集成电路芯片 41,42)和印刷电路板(43,44)之外的集成电路芯片行,以及光学成像装置(30),用于聚焦LED在感光体的像面中的图像。 基板具有凸起的肋(52),用于将LED骰子安装在基座上方的高度处,使得它们的电接合焊盘(53,54)处于高于相应的焊盘(55,56)的高度, 的集成电路芯片(41,42)。