10 April 1997 Multiple illuminations method for rainbow hologram using an LCD projector
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Abstract
This report is concerned with several display systems for making 3D image fluctuate. These systems aim to reconstruct rainbow hologram images moved dynamically. The first method is using small motors for drifting an illumination and swinging a reflection mirror. The second method is using an electric fan for flapping a film hologram hung with rubber strings. The third method is using a liquid crystal display (LCD) projector controlled by a computer and a screen sized reflection panel composed of many small mirrors. In the last case, the small beam out of the LCD projector is reflected on a mirror of the reflection panel and illuminates the hologram panel. The hologram image generated by each small mirror has its particular property that is slightly different each other; shape, position and color. The highlight pattern of the beam projected on the reflection panel is moved by the computer program. When the pattern is fluctuated by the computer program, the position and color of the generated hologram image fluctuate accordingly.
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Masaaki Okamoto, Hiroaki Ueda, Ikuo Nakamura, Eiji Shimizu, Toshihiro Kubota, "Multiple illuminations method for rainbow hologram using an LCD projector", Proc. SPIE 3011, Practical Holography XI and Holographic Materials III, (10 April 1997); doi: 10.1117/12.271380; https://doi.org/10.1117/12.271380
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