3D profile measurement of openings with optical caliper

Lianhua Jin; Takuma Ashizawa; Toru Yoshizawa

doi:10.1117/12.2616254

27 October 2021 3D profile measurement of openings with optical caliper

Lianhua Jin, Takuma Ashizawa, Toru Yoshizawa

Proceedings Volume 11927, Optical Technology and Measurement for Industrial Applications Conference 2021; 119270A (2021) https://doi.org/10.1117/12.2616254
Event: SPIE Technologies and Applications of Structured Light, 2021, Online, Japan

Abstract

We developed an optical caliper for measurement of 3D profiles of openings. The optical caliper consists of a semiconductor laser, a right circular conical mirror, and a camera with a wide-field lens. The distance from the mirror and the camera is changeable, which leads to increment of the measurement range with one system. The 3D inner profile of an art craft was measured with this system.

Citation Download Citation

Lianhua Jin, Takuma Ashizawa, and Toru Yoshizawa "3D profile measurement of openings with optical caliper", Proc. SPIE 11927, Optical Technology and Measurement for Industrial Applications Conference 2021, 119270A (27 October 2021); https://doi.org/10.1117/12.2616254

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