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Proceedings Paper

Measuring system of digital-optical power spectrum
Author(s): Hegao Li
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Paper Abstract

Measuring System of Digital-Optical Power Spectrum (MSDOPS) is a digit-optical hybrid processing system. The method of designing the system is given in this paper. It includes: Selecting the suitable detector, designing optical system and the electronic circuit. The schematic diagram of the MSDOPS is shown in Fig.l. The optical system consists of He-Ne Laser, spacial filter, collimating lens, Fourier Transform lens (FTL), and magnifying lens. Its function is to give the Fourier spectrum for the input. 64-element photo-electric detector, electric shutter, electronic circuit, and A/D converter make up the optic-electric converter. Optical signals are converted into electric signals. Digital signal processing is carried out by a microcomputer. The input image, recorded on films, can be transmitted by auto-transfering mechanism into the liquid-gate at the entrance of MSDOPS.

Paper Details

Date Published: 1 July 1990
PDF: 3 pages
Proc. SPIE 1230, International Conference on Optoelectronic Science and Engineering '90, 123021 (1 July 1990); doi: 10.1117/12.2294710
Show Author Affiliations
Hegao Li, Tianjin Univ. (China)


Published in SPIE Proceedings Vol. 1230:
International Conference on Optoelectronic Science and Engineering '90
DaHeng Wang, Editor(s)

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