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    • 12. 发明授权
    • Three-dimensional shape measuring device and three-dimensional shape
measuring sensor
    • 三维形状测量装置和三维形状测量传感器
    • US5381235A
    • 1995-01-10
    • US990460
    • 1992-12-15
    • Yasuo InoueTadashi NishimuraTakashi IpposhiToshiaki Iwamatsu
    • Yasuo InoueTadashi NishimuraTakashi IpposhiToshiaki Iwamatsu
    • G01B11/24G01B11/02G01B11/25G01C3/06H01L27/14
    • G01B11/024G01B11/2518
    • The present invention provides a three-dimensional shape measuring device and a sensor employed for the three-dimensional shape measuring device. The three-dimensional shape measuring device comprises a light source for scanning plane light over the surface of an object, an image sensor opposed to the object and provided with a plurality of pixels, an optical system for forming an image of a bright line appearing on the surface of the object due to plane light on the image sensor, a plurality of capacitors installed in association with pixels of the image sensor, a charger for storing given charges in a plurality of capacitors before plane light scanning starts, a plurality of dischargers lying in association with capacitors and gradually discharging the capacitors for pixels corresponding to a bright line image from when plane light scanning starts until the bright line image passes through the pixels, and an arithmetic logic means for computing charges remaining in the plurality of capacitors after plane light scanning is completed and thus providing a three-dimensional shape of an object. Thereby, a three-dimensional shape of an object can be measured at a high speed with high precision.
    • 本发明提供了三维形状测量装置和用于三维形状测量装置的传感器。 三维形状测量装置包括:用于扫描物体表面上的平面光的光源,与该物体相对并设置有多个像素的图像传感器,用于形成亮线的图像的光学系统, 由于图像传感器上的平面光,物体的表面,与图像传感器的像素相关联地安装的多个电容器,用于在平面光扫描开始之前在多个电容器中存储给定电荷的充电器,多个放电器位于 与平面光扫描开始直到亮线图像通过像素的与亮线图像相对应的像素的电容器逐渐放电;以及算术逻辑装置,用于计算平面光后的多个电容器中剩余的电荷 扫描完成,从而提供对象的三维形状。 由此,可以高精度地测量物体的三维形状。