Rear projection apparatus

Details Rear projection apparatus Rear projection apparatus

1981-10-14

1984-04-17

Chin, Tommy P.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358231, 350127, 350128, H04N 931, G03B 2160

Patent

active

044438141

ABSTRACT:
A rear projection apparatus for producing an optical image on a surface of a rear transmitting screen in which a convex lens array is formed on both surfaces of the screen, each convex lens formed on one surface of the screen having a corresponding convex lens formed on the other surface of the screen with a common optical axis, the focal point of each convex lens formed on one surface of the screen being on the surface of the each convex lens formed on the to other surface of the screen.

REFERENCES:
patent: 2480031 (1949-08-01), Kellogg
patent: 2738706 (1956-03-01), Thompson, Jr.
patent: 3166635 (1965-01-01), Todt
patent: 3623717 (1970-08-01), Glenn
patent: 4026634 (1977-03-01), Fukushima
patent: 4054907 (1977-10-01), Itoh

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