3-D Shape Measurement Sensor for Specular Objects
Harunobu Kawai*, Toshihiro Hamada*, Hiroki Nakanishi*
and Seiji Hata**
*Kagawa Prefectural Industrial Technology Center, 587-1 Goto-cho, Takamatsu, Kagawa, 761 Japan
**Faculty of Education, Kagawa University, 1-1 Saiwai-cho, Takamatsu, Kagawa, 760 Japan
In the case of constructing an inspection system such as extracting the defects of 3-D shape of parts, it is a necessary and indispensable factor that the non-contact shape measurement of an object is automated. However, it is very difficult to measure the shape of an object which has a mirror-like surface. Here, a three-dimensional shape measurement sensor capable of reliably measuring the shape of an object which has mirror-like surface has been developed. The spotlight scanning light-section method is employed in this sensor. The sensor is a compact instrument by which the position of light can scan the object. The output intensity of the light source is controlled according to the detected brightness of light.
and Seiji Hata, “3-D Shape Measurement Sensor for Specular Objects,” J. Robot. Mechatron., Vol.7, No.3, pp. 221-224, 1995.