Wide dynamic range optical power detector
    132.
    发明授权
    Wide dynamic range optical power detector 有权
    宽动态范围光功率检测器

    公开(公告)号:US06677570B1

    公开(公告)日:2004-01-13

    申请号:US09847506

    申请日:2001-05-02

    CPC classification number: G01J1/4257 G01J1/02 G01J1/0252

    Abstract: According to an aspect of the present invention, a power detector including a photodiode and a logarithmic transimpedance amplifier is mounted inside a hermetically sealed package in such a way that the photodiode and the logarithmic transimpedance amplifier are located on the same thermally conductive substrate.

    Abstract translation: 根据本发明的一个方面,包括光电二极管和对数跨阻抗放大器的功率检测器安装在密封封装内,使得光电二极管和对数跨阻抗放大器位于相同的导热基板上。

    Image input apparatus for reading conveyed items using air flow cooling of illumination windows
    133.
    发明授权
    Image input apparatus for reading conveyed items using air flow cooling of illumination windows 失效
    用于使用照明窗的空气流冷却读取被输送物品的图像输入装置

    公开(公告)号:US06566646B1

    公开(公告)日:2003-05-20

    申请号:US09528512

    申请日:2000-03-17

    Applicant: Masato Iwakawa

    Inventor: Masato Iwakawa

    Abstract: The image input apparatus picks up the image of the object moved in the predetermined direction by the conveying means and illuminated by illuminating means having an light source, an internal window glass and an outermost window glass. The internal window glass serves as a heat ray absorbing glass, and an outermost window glass serves as a heat ray transmitting glass. The image input apparatus comprises the air cooling means for generating an air flow to forcedly cool the front and the rear surface of the internal window glass.

    Abstract translation: 图像输入装置通过传送装置拾取沿预定方向移动的物体的图像,并且由具有光源,内部窗玻璃和最外窗玻璃的照明装置照射。 内部窗玻璃用作热射线吸收玻璃,最外面的窗玻璃用作热射线透射玻璃。 图像输入装置包括用于产生用于强制冷却内部窗玻璃的前表面和后表面的空气流的空气冷却装置。

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