Plastic-molded total-reflection type polygonal laser beam deflector

Naoki Kaiho; Yasukazu Sano; Nobuhiko Tsuji; Fumiyuki Ikeda; Tetsuya Saito

doi:10.1117/12.163631

25 November 1993 Plastic-molded total-reflection type polygonal laser beam deflector

Naoki Kaiho, Yasukazu Sano, Nobuhiko Tsuji, Fumiyuki Ikeda, Tetsuya Saito

Proceedings Volume 2000, Current Developments in Optical Design and Optical Engineering III; (1993) https://doi.org/10.1117/12.163631
Event: SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, 1993, San Diego, CA, United States

Abstract

This paper reports on a novel plastic-molded total-reflection type polygonal laser beam deflector. The present deflector is fabricated by the optical resin molding which is suitable for low cost mass production, because expensive and time consuming aluminum reflection film deposition process has been eliminated. A bar-code reader that employs the present laser beam deflector shows readout performance comparable to that of a bar-code reader that employs the conventional aluminum deflector. The condition of no deterioration of the field depth of the resolving power for the bar-code is that, waviness on a deflector surface W_max is to be less than 10 nm.

Citation Download Citation

Naoki Kaiho, Yasukazu Sano, Nobuhiko Tsuji, Fumiyuki Ikeda, and Tetsuya Saito "Plastic-molded total-reflection type polygonal laser beam deflector", Proc. SPIE 2000, Current Developments in Optical Design and Optical Engineering III, (25 November 1993); https://doi.org/10.1117/12.163631

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