Development of automatic hologram synthesizer for medical use IV: liquid-crystal spatial light modulator

Kenichi Kasazumi; Makoto Kato; Mayumi Uno; I. Kobayashi; Hideaki Adachi; Toshiya Ohtani; Kenji Kanai

doi:10.1117/12.59624

1 May 1992 Development of automatic hologram synthesizer for medical use IV: liquid-crystal spatial light modulator

Kenichi Kasazumi, Makoto Kato, Mayumi Uno, I. Kobayashi, Hideaki Adachi, Toshiya Ohtani, Kenji Kanai

Proceedings Volume 1667, Practical Holography VI; (1992) https://doi.org/10.1117/12.59624
Event: SPIE/IS&T 1992 Symposium on Electronic Imaging: Science and Technology, 1992, San Jose, CA, United States

Abstract

A liquid-crystal (LC) spatial light modulator for hologram synthesis consisting of a high resolution twisted nematic LC-panel of active matrix type has been developed. Output images with signal-to-noise ratio of 30 dB and maximum contrast ratio over 600 were obtained. The stability of the displayed image was analyzed on the basis of two beam interferometry. Confirmation of no appreciable degradation in diffraction efficiency was obtained.

Citation Download Citation

Kenichi Kasazumi, Makoto Kato, Mayumi Uno, I. Kobayashi, Hideaki Adachi, Toshiya Ohtani, and Kenji Kanai "Development of automatic hologram synthesizer for medical use IV: liquid-crystal spatial light modulator", Proc. SPIE 1667, Practical Holography VI, (1 May 1992); https://doi.org/10.1117/12.59624

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