선모양을 한 레이저빔의 방향성 배율 확대를 이용한 정밀 형상측정 시스템

A New Profilometry System for Precision Measurement of 3D Shape Using the Directional Magnification Control of a Laser Light Stripe

This paper proposes a profilometry system for precise surface contouring of 3D objects using a direc- tionally magnified image of a laser light stripe. The resolution of this system can be improved several times comparad with that of conventional systems without loss of spatial resolution and depth of measurement. A pair of cylindrical lens(a convex lens and a concave lens) are used for a directionally magnified image of a laser light stripe maintaining the same focal plane. Also, image processing procedures for image reconstruc- tions are described.