Optimisation of the illumination of a projection appliance
    1.
    发明授权
    Optimisation of the illumination of a projection appliance 有权
    优化投影设备的照明

    公开(公告)号:US07445344B2

    公开(公告)日:2008-11-04

    申请号:US10536984

    申请日:2003-12-03

    IPC分类号: G03B21/28

    摘要: In order to align the optical components of a projection apparatus (1), more particularly a rear projection apparatus of a projection wall, wherein the projection apparatus (1) comprises a light mixing rod (8), it is proposed to arrange an alignment deflecting mirror (19) in the illumination path of the imaging device (11) between the lamp (3) and the light mixing rod (8), wherein said alignment deflecting mirror (19) can be adjusted by means of servo motors (23).

    摘要翻译: 为了对准投影装置(1)的光学部件,更具体地,投影装置(1)包括光混合杆(8)的投影装置的背投影装置,建议将对准偏转 在灯(3)和光混合杆(8)之间的成像装置(11)的照明路径中的反射镜(19),其中所述对准偏转镜(19)可以通过伺服马达(23)进行调节。

    Device for reading and/or writing optical recording media
    2.
    发明授权
    Device for reading and/or writing optical recording media 失效
    用于读取和/或写入光学记录介质的设备

    公开(公告)号:US07596070B2

    公开(公告)日:2009-09-29

    申请号:US10296799

    申请日:2001-05-29

    IPC分类号: G11B7/00

    CPC分类号: G11B7/1353 G11B2007/0006

    摘要: The present invention relates to an appliance for reading from and/or writing to optical recording media 1 having a first laser diode LD1 for producing a first scanning beam AS1 at a first wavelength λ1 and having a second laser diode LD2 for producing a second scanning beam AS2 at a second wavelength λ2, with the scanning beams AS1, AS2 running along a common optical axis 9, scanning an information layer 6 on the recording medium 1 and falling on a single photodetector 8 in order to produce an information signal IS, with a beam combination element being arranged at one point on the optical axis 9. According to the invention, the beam combination element is a diffraction grating 12.

    摘要翻译: 本发明涉及一种用于从具有第一激光二极管LD1的光记录介质1读取和/或写入器件,用于产生第一波长λ1的第一扫描光束AS1,并具有用于产生第二扫描光束的第二激光二极管LD2 AS2在第二波长λ2处,扫描光束AS1,AS2沿着公共光轴9行进,扫描记录介质1上的信息层6并落在单个光电检测器8上,以产生信息信号IS,其中 光束组合元件布置在光轴9上的一个点处。根据本发明,光束组合元件是衍射光栅12。