SURFACE MEASUREMENT APPARATUS AND SURFACE MEASUREMENT METHOD USING MULTIPLE LIGHT SOURCES

摘要

The present invention relates to a surface measurement apparatus and a surface measurement method using multiple light sources. The apparatus comprises: a light source unit including multiple light sources to selectively irradiate light to the surface of a subject; an image acquisition unit for acquiring an image by sequentially photographing the surface of a subject to which a light source has been irradiated; and a shielding unit installed around the light source unit and the image acquisition unit to block external light. Accordingly, in the present invention, a shielding unit for blocking external light is installed around the light source unit and the image acquisition unit to measure the surface, and it is thus unnecessary to separately install a blocking filter, which blocks a light source other than a light source for measurement, in a camera of the image acquisition unit. Therefore, the present invention can not only reduce the cost for installation of the camera, but can also improve the utilization, accuracy, and preciseness of an image of the camera.