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    • 10. 发明申请
    • OPTICAL NAVIGATION DEVICE WITH PHASE GRATING FOR BEAM STEERING
    • 具有光束转向相位光学的光学导航装置
    • US20100207884A1
    • 2010-08-19
    • US12388776
    • 2009-02-19
    • Annette Grot
    • Annette Grot
    • G06F3/033
    • G06F3/0317
    • An optical navigation device with a phase grating for beam steering. The optical navigation device includes a light source, and image sensor, and a beam steering element. The light source directs a light beam toward a navigation surface. The image sensor receives light along an imaging path and generates a navigation image of the navigation surface from the light received along the imaging path. The beam steering element is disposed between the navigation surface and the image sensor. The beam steering element receives reflected light from the navigation surface along a specular reflection path. The beam steering element directs a first portion of the reflected light along the imaging path toward the image sensor. The beam steering element directs a second portion of the reflected light along a beam steering path away from the imaging path.
    • 一种具有用于光束转向的相位光栅的光学导航装置。 光学导航装置包括光源,图像传感器和光束操纵元件。 光源将光束引向导航表面。 图像传感器沿着成像路径接收光,并从沿着成像路径接收的光生成导航面的导航图像。 光束操纵元件设置在导航表面和图像传感器之间。 光束操纵元件沿着镜面反射路径接收来自导航表面的反射光。 光束操纵元件沿着成像路径将反射光的第一部分引向图像传感器。 光束操纵元件将反射光的第二部分沿着光束转向路径引导远离成像路径。