Optical: systems and elements – Projection screen – Unitary sheet comprising plural refracting areas
Patent
1998-09-10
2000-11-21
Metjahic, Safet
Optical: systems and elements
Projection screen
Unitary sheet comprising plural refracting areas
359460, G03B 2156, G03B 2160
Patent
active
061511633
ABSTRACT:
A screen for a projection-type video display apparatus. A linear-type Fresnel lens has a lens pattern on a first side for receiving light energy from a light source. A second side of the Fresnel lens is opposite the first side. The light energy exits the Fresnel lens from the second side. A hologram is affixed to the second side of the Fresnel lens for managing the dispersion of the light energy exiting from the second side of the Fresnel lens. The hologram is affixed to the Fresnel lens by any of various lamination processes.
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Hall, Jr. Estill Thone
Pfile Wendy Rene
Fried Harvey D.
Laks Joseph J.
Mahoney Christopher E.
Metjahic Safet
Thomson Licensing S.A.
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