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Optical Engineering

Autofocusing control for a DIVX burst-cutting-area recording system
Author(s): Chengping Zhang; Peisen S. Huang; Dmitry Donskoy; Yusong Yin
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Paper Abstract

An autofocusing system used for a laser burst-cutting-area (BCA) marking system for a DlVX production line has been developed. The principle of focus error detection is based on a method that takes advantage of the focusing properties of simple optical elements. A differential detection method is used to achieve high resolution, and a position servo is designed to accomplish the autofocusing. Some design considerations, system modeling, simulation, and experiments are described. Experimental results are presented to show the feasibility of this system.

Paper Details

Date Published: 1 July 2001
PDF: 6 pages
Opt. Eng. 40(7) doi: 10.1117/1.1383993
Published in: Optical Engineering Volume 40, Issue 7
Show Author Affiliations
Chengping Zhang, SUNY/Stony Brook (United States)
Peisen S. Huang, SUNY/Stony Brook (United States)
Dmitry Donskoy, Photonics Industries International, Inc. (United States)
Yusong Yin, Photonics Industries International, Inc. (United States)

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