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    • 18. 发明授权
    • Optical scanning-type touch panel
    • 光学扫描型触摸屏
    • US06664952B2
    • 2003-12-16
    • US09843907
    • 2001-04-30
    • Yasuhide IwamotoSatoshi SanoFumihiko NakazawaNobuyasu Yamaguchi
    • Yasuhide IwamotoSatoshi SanoFumihiko NakazawaNobuyasu Yamaguchi
    • G09G500
    • G06F3/0423
    • An optical unit of an optical scanning-type touch panel is constructed by providing a light emitting element for emitting infrared laser light, a collimation lens for changing the laser light from the light emitting element into parallel light, a light receiving element for receiving scanning light, a slit plate for limiting incident light on the light receiving element, a polygon mirror for angularly scanning the laser light from the light emitting element, an aperture mirror for limiting light projected onto the polygon mirror from the collimation lens by an aperture and for reflecting the reflected light from the polygon mirror toward the light receiving element, a light receiving lens for focusing the reflected light from the aperture mirror, and a motor for rotating the polygon mirror in a single optical unit main body as one unit.
    • 光扫描型触摸面板的光学单元通过提供用于发射红外激光的发光元件,用于将来自发光元件的激光改变为平行光的准直透镜构成,用于接收扫描光的光接收元件 ,用于限制光接收元件上的入射光的狭缝板,用于对来自发光元件的激光进行角度扫描的多面镜;孔径镜,用于限制通过孔径从准直透镜投射到多面镜上的光并用于反射 来自多面镜的反射光朝向光接收元件,用于聚焦来自孔径反射镜的反射光的光接收透镜,以及用于将单个光学单元主体中的多面镜旋转为一个单元的马达。