公开(公告)号：US20090268212A1

公开(公告)日：2009-10-29

申请号：US12388368

申请日：2009-02-18

申请人： Kuk-Won Ko ,  Kyoung-Chul Koh

发明人： Kuk-Won Ko ,  Kyoung-Chul Koh

IPC分类号： G01B11/25

CPC分类号： G01B11/254

摘要： Disclosed herein is a moiré shape measurement apparatus using a Liquid Crystal Display (LCD) panel. The moiré shape measurement apparatus includes a light source, a variable grating, a viewing lens, a light receiving unit, a computation unit, and a driving device. The light source emits light. The variable grating passes the emitted light therethrough, and creates a projection grating pattern. The viewing lens focuses a reflected grating pattern that is obtained when the projection grating pattern is reflected from the object. The light receiving unit receives the light of the reflected grating pattern passed through the viewing lens. The computation unit previously stores the viewing grating pattern, forms the moiré pattern by overlaying the reflected grating pattern, received from the light receiving unit, on the stored viewing grating pattern, and computes the shape of the object using the moiré pattern. The driving device adjusts a direction and a pitch in order to form a grating of the variable grating.

摘要翻译： 本文公开了使用液晶显示（LCD）面板的莫尔条形测量装置。 波纹形状测量装置包括光源，可变光栅，观察透镜，光接收单元，计算单元和驱动装置。 光源发光。 可变光栅将发射的光通过其中，并产生投影光栅图案。 观察镜头聚焦当投影光栅图案从物体反射时获得的反射光栅图案。 光接收单元接收穿过观察透镜的反射光栅图案的光。 计算单元预先存储观察光栅图案，通过将从光接收单元接收的反射光栅图案覆盖在所存储的观察光栅图案上而形成莫尔图案，并使用莫尔图案计算对象的形状。 为了形成可变光栅的光栅，驱动装置调节方向和间距。