AMBIENT LIGHT SENSOR
    4.
    发明申请
    AMBIENT LIGHT SENSOR 有权
    环境光传感器

    公开(公告)号:US20080179701A1

    公开(公告)日:2008-07-31

    申请号:US11744384

    申请日:2007-05-04

    IPC分类号: H01L31/0248

    摘要: An ambient light sensor includes a substrate, a buffer layer formed on the substrate, an absorption layer formed on the buffer layer for absorbing the visible light, and a filter layer formed on the absorption layer for filtering infrared light and high-energy photon insensitive to human eye. The absorption layer is a PIN junction having a compositional graded intrinsic layer. The peak wavelength of responsivity spectrum of the ambient light sensor is very close to that of human eye.

    摘要翻译: 环境光传感器包括基板,形成在基板上的缓冲层,形成在缓冲层上用于吸收可见光的吸收层,以及形成在吸收层上用于过滤红外光的滤光层和对光不敏感的高能光子 人类的眼睛。 吸收层是具有组成梯度本征层的PIN结。 环境光传感器的响应光谱的峰值波长与人眼非常接近。