Projection image system and assembling system therefor

Details Projection image system and assembling system therefor Projection image system and assembling system therefor

1991-08-30

1993-09-28

Cuchlinski, Jr., William A.

Optics: image projectors

Plural

353 30, 353119, 358 60, 358231, 359460, G03B 2160

Patent

active

052490050

ABSTRACT:
A projection image unit comprises a screen, a box-like casing arranged behind a back surface of the screen having an opening face directed to the back surface and a projector disposed in the casing so as to project an image on the screen. The casing has outside dimensions in cross-section smaller than those of the screen. A plurality of projection image units are piled in matrix in an outer frame so as to constitute a projection image system having a large screen. The outer frame unit comprises vertical frames and horizontal frames constituting the outer configuration of the outer frame unit. A horizontal frame member is disposed between the vertical frames of the outer frame unit through a gap between the vertically adjacent projection image units, and a vertical frame member is disposed between the horizontal frames of the frame unit through a gap between the horizontally adjacent projection image units. The assembling of the projection image system is carried out by utilizing a crane device movably mounted on a frame unit enclosing entirely a plurality of the projection image units.

REFERENCES:
patent: 3909525 (1975-09-01), Fagan
patent: 4866530 (1989-09-01), Kalua
patent: 4903137 (1990-02-01), Wakasa
patent: 5011277 (1991-04-01), Ogino et al.
patent: 5085495 (1992-02-01), Iwahara et al.
patent: 5116117 (1992-05-01), Miyashita

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