Rear projection apparatus

Details Rear projection apparatus Rear projection apparatus

1988-09-28

1990-01-23

Wintercorn, Richard A.

G03B 2156

Patent

active

048954292

ABSTRACT:
A rear projection apparatus is disclosed which is provided with at least two optical projection lens units. Two or more projected images are joined to form a single projected image on a screen. A light reflection preventing member is provided on a blocking plate for preventing the adjacent images from overlapping with each other. The reflection preventing member is used for preventing the light, projected onto the blocking plate, from being introduced into the screen, thereby preventing a degradation of contrast.

REFERENCES:
patent: 2030505 (1936-02-01), DeRoulet
patent: 4473355 (1984-09-01), Pongratz
patent: 4668046 (1987-05-01), Yatabe et al.

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