Share Email Print

Optical Engineering

New types of semiconductor image position sensitive device
Author(s): Toyomi Fujita; Masanori Idesawa
Format Member Price Non-Member Price
PDF $20.00 $25.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Two new types of semiconductor image position sensitive device (PSD) are proposed. One is a separate photoelectric device type of PSD that reduces image position sensing errors caused by the influence of noise light, such as background light, which cannot be removed by conventional signal light modulating methods. The other is a semiconductor dark image PSD that can detect the position of dark target image against a bright background. These new types of PSD can be realized with configurations similar to the conventional PSD. Simulation results demonstrated that the new types of PSD are effective for accurate spot image position sensing.

Paper Details

Date Published: 1 September 2009
PDF: 5 pages
Opt. Eng. 48(9) 093602 doi: 10.1117/1.3223637
Published in: Optical Engineering Volume 48, Issue 9
Show Author Affiliations
Toyomi Fujita, Tohoku Institute of Technology (Japan)
Masanori Idesawa, The Univ. of Electro-Communications (Japan)

© SPIE. Terms of Use
Back to Top