Exposure apparatus having a PLZT shutter, a multi-colored filter

Details Exposure apparatus having a PLZT shutter, a multi-colored filter Exposure apparatus having a PLZT shutter, a multi-colored filter

1995-12-27

1998-02-17

Moses, R. L.

Photocopying

Projection printing and copying cameras

Multicolor picture

355 67, 355 32, 355 71, G03B 2772, G03B 3302

Patent

active

057196605

ABSTRACT:
An exposure apparatus has a color shifter disk which comprises blue, green and red color filters, formed by dividing the disk into three sectors, and a light shielding member arranged for moving into and out from the light path in synchronization with the rotating movement of the color shifter disk. The light shielding member advances into the light path to interrupt the exposure light when a boundary between two adjacent color filters of the color shifter disk moves into the light path, and retracts from the light path to pass the exposure light when the boundary between two adjacent color filters of the color shifter disk departs from the light path.

REFERENCES:
patent: 5231537 (1993-07-01), Hama
patent: 5488450 (1996-01-01), Tanibata

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