Optical: systems and elements – Single channel simultaneously to or from plural channels – By surface composed of lenticular elements
Patent
1989-11-29
1992-09-08
Arnold, Bruce Y.
Optical: systems and elements
Single channel simultaneously to or from plural channels
By surface composed of lenticular elements
359449, 359457, 359460, 359742, G02B 308, G02B 2700, G03B 2160
Patent
active
051463652
ABSTRACT:
A back projection type screen having a screen portion to be disposed at a position whereat an image projected from image projector means is formed, the screen portion being formed by at least one transparent sheet, the screen portion having a vertical direction and a horizontal direction in parallel to the surface of the transparent sheet, and a light diffusing portion formed on the light beam incidence side surface of the transparent sheet which is next to the light beam incidence side of the screen portion, the light diffusing portion transmitting an incident light therethrough and also diffusing reflected light in the vertical direction and the horizontal direction. The specification also discloses an image display apparatus using such screen.
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Kurematsu Katsumi
Minoura Nobuo
Mitsutake Hideaki
Yanagi Haruyuki
Arnold Bruce Y.
Canon Kabushiki Kaisha
Parsons David R.
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