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Proceedings Paper

Surface profile measurement using a CD optical pickup head
Author(s): Zhaowei Zhong; W. W. Tham
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Paper Abstract

Surface profile measurement using a CD optical pickup head was studied. A simple controller capable of driving the laser diode in the optical pickup head with a power control feature was developed. A simple setup with the optical probe was used for experiments of surface profile measurement. The relationship between the height change and the light intensity received by the photo detector was studied. Hill-shape-like curves were obtained and the relationship was verified experimentally.

Paper Details

Date Published: 30 October 2001
PDF: 6 pages
Proc. SPIE 4596, Advanced Photonic Sensors and Applications II, (30 October 2001); doi: 10.1117/12.447370
Show Author Affiliations
Zhaowei Zhong, Nanyang Technological Univ. (Singapore)
W. W. Tham, Nanyang Technological Univ. (Singapore)


Published in SPIE Proceedings Vol. 4596:
Advanced Photonic Sensors and Applications II

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