Optical: systems and elements – Projection screen – Unitary sheet comprising plural refracting areas
Patent
1997-03-28
1999-03-02
Metjahic, Safet
Optical: systems and elements
Projection screen
Unitary sheet comprising plural refracting areas
G03B 2160
Patent
active
058778934
ABSTRACT:
A holographic screen of a rear projection type for use in a projector for transmitting projection light received from a rear end of the projector onto a viewing surface. The holographic screen includes a holographic sheet having an incident surface for receiving projection light, a viewing surface for forming the projection light received by the incident surface into a viewable image, a plurality of protrusions disposed in parallel with each other for scattering the received projection light; and a plurality of light absorbers which are formed between the plurality of the protrusions on the viewing surface, for absorbing ambient light incident to the viewing surface. Thus, an image whose contrast is improved is displayed on a viewing surface.
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GB Search Report.
Mahoney Christopher E.
Metjahic Safet
Samsung Electronics Co,. Ltd.
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