Multiprojection apparatus

Details Multiprojection apparatus Multiprojection apparatus

1992-03-25

1993-04-27

Wintercorn, Richard A.

Optical: systems and elements

Projection screen

Unitary sheet comprising plural refracting areas

359443, G03B 2156

Patent

active

052067602

ABSTRACT:
There is provided the construction of a multiprojection apparatus composed of a plurality of projection units arranged in the vertical and horizontal directions, in which a transparent holding strip having an H-shaped cross section is inserted between screens each composed of a lenticular sheet and a Fresnel lens, and the right and left ends of a multiscreen are supported by elastic support members, or in which a receive member for receiving the screen in the direction of the optical axis and a screen holding device are provided, the receive member has such a shape as not to block projection light corresponding to an image on the screen and is located near a joint of the screen and another screen, and the holding device is disposed on a black stripe of the lenticular sheet and always pulled by an elastic member toward the receive member. Therefore, according to the present invention, it is possible to restrict the missing of information due to joints of the screens.

REFERENCES:
patent: 4668046 (1987-05-01), Yatabe et al.
patent: 4695135 (1987-09-01), Den Exter Blokland et al.
patent: 4895429 (1990-01-01), Iwahara et al.
patent: 5011277 (1991-04-01), Ogino et al.
patent: 5103339 (1992-04-01), Broome

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