OPTICAL SCANNING PROJECTION SYSTEM
    2.
    发明申请
    OPTICAL SCANNING PROJECTION SYSTEM 有权
    光学扫描投影系统

    公开(公告)号:US20120154882A1

    公开(公告)日:2012-06-21

    申请号:US13238139

    申请日:2011-09-21

    IPC分类号: G02B26/08

    CPC分类号: G02B26/0841 G02B26/101

    摘要: An optical scanning projection system includes a scanning light source component, a second reflecting element, a transparent element, a scanning element, a photosensitive element and a control module. The transparent element receives a main light beam emitted by the scanning light source component and reflects a part of the main light beam to be a reflected light. The reflected light is reflected by the second reflecting element, and the scanning element reflects the reflected light from the second reflecting element in a scanning manner. The photosensitive element receives the reflected light from the scanning element and outputs a sensing signal, and the control module actuates or stops actuating the scanning light source component according to the sensing signal. Therefore, when the scanning element is damaged, the control module may instantly stop actuating the scanning light source component, thereby enhancing the using safety of the optical scanning projection system.

    摘要翻译: 光学扫描投影系统包括扫描光源组件,第二反射元件,透明元件,扫描元件,感光元件和控制模块。 透明元件接收由扫描光源组件发射的主光束并将主光束的一部分反射成反射光。 反射光被第二反射元件反射,扫描元件以扫描方式反射来自第二反射元件的反射光。 感光元件接收来自扫描元件的反射光并输出感测信号,并且控制模块根据感测信号来驱动或停止启动扫描光源部件。 因此,当扫描元件损坏时,控制模块可以立即停止致动扫描光源部件,从而提高光学扫描投影系统的使用安全性。