Optical: systems and elements – Projection screen – Unitary sheet comprising plural refracting areas
Patent
1993-12-10
1995-06-20
Wintercorn, Richard A.
Optical: systems and elements
Projection screen
Unitary sheet comprising plural refracting areas
359460, G03B 2160
Patent
active
054265312
ABSTRACT:
A transmission screen includes a screen material having a projection light incident surface on which a Fresnel lens is formed, and a projection light outside surface on which a lenticular lens is formed. The lenticular lens has a plurality of lenticular lens portions. Formed between adjacent pairs of the lenticular lens portions are black stripes. Images of the projection light are seen on an outer surface of the lenticular lens. Furthermore, a coating having a low refraction index and a predetermined thickness is formed only on the black stripes.
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Mitsubishi Denki & Kabushiki Kaisha
Wintercorn Richard A.
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