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Proceedings Paper

Two-dimensional optical position sensor using a dual axis miniature optical scanner
Author(s): Hiroki Kamoda; Hiroshi Goto; Koichi Imanaka
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Paper Abstract

A novel compact two dimensional optical sensor is proposed. The sensor consists of a piezoelectric actuator driven dual axis miniature optical scanner, a silicon photo diode, and a micro collimated light source with a micro Fresnel lens. By monitoring the beam intensity reflected from the object, the object position and the object size are determined, since the irradiated beam position is precisely identified by monitoring the phase of the applied ac voltage to the actuator. The sensing area as wide as 15 X 15 degrees is achieved with a simple configuration.

Paper Details

Date Published: 13 January 1993
PDF: 9 pages
Proc. SPIE 1751, Miniature and Micro-Optics: Fabrication and System Applications II, (13 January 1993); doi: 10.1117/12.138891
Show Author Affiliations
Hiroki Kamoda, Omron Corp. (Japan)
Hiroshi Goto, Omron Corp. (Japan)
Koichi Imanaka, Omron Corp. (Japan)

Published in SPIE Proceedings Vol. 1751:
Miniature and Micro-Optics: Fabrication and System Applications II
Chandrasekhar Roychoudhuri; Wilfrid B. Veldkamp, Editor(s)

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