Three dimensional projection system

Details Three dimensional projection system Three dimensional projection system

1996-02-14

1996-12-24

Dowling, William

Optics: image projectors

Lens support

Lens position adjustable

353100, 359822, 359823, 359696, G03B 2100, G02B 704

Patent

active

055868185

ABSTRACT:
Disclosed is a three dimensional projection system. A holder housing has upper and lower plates and a plurality of longitudinally inclined guiding holes inclined at predetermined angles about central axes of the upper and lower plates. First and second projecting lens holders have cylindrical shapes and are provided with projecting lenses in front sides thereof. Movable pins protrusively formed on upper and lower portions of the first and second projecting lens holders are provided. The movable pins are respectively inserted into corresponding longitudinally inclined guiding holes. A holder supporting plate has a pair of front and rear plates and a spacer. The front and rear plates are provided with first and second leg portions formed at both sides thereof and extended onto an upper portion of the upper plate, and third and fourth leg portions extended onto a lower portion of the lower plate. A driving motor for supplying driving power for transporting the projecting lens holders is provided. And transporting apparatus for transporting the driving power to the projecting lens holders is provided. The operation of the system is advantageous and the keystoning phenomenon is eliminated.

REFERENCES:
patent: 5125733 (1992-06-01), Lee
patent: 5140468 (1992-08-01), Kayanuma
patent: 5202706 (1993-04-01), Hasegawa

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