Exposure apparatus with a PLZT shutter which received light from

Details Exposure apparatus with a PLZT shutter which received light from Exposure apparatus with a PLZT shutter which received light from

1995-11-13

1998-02-24

Grimley, Arthur T.

Photocopying

Projection printing and copying cameras

Illumination systems or details

355 69, 355 32, 355 35, 355 37, G03B 2772

Patent

active

057216096

ABSTRACT:
An intensity of light emitted from a lamp is passed through a mirror tunnel and is directed to a disk which comprises three, B, G, and R, color filters, each extending 120 degrees on the disk. Each of the B, G, and R modes of light, separated on the disk, is guided through the optical fiber bundle and is transmitted to the PLZT elements. A pattern of the PLZT elements, determined by a group of dots of exposure data to be printed, are energized by a given voltage in synchronization with the rotation of the disk 13, thus allowing a desired mode or wavelength of light to pass selectively and fall efficiently on the printing paper.

REFERENCES:
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patent: 4831436 (1989-05-01), Birgmeir et al.
patent: 4868677 (1989-09-01), Tompane
patent: 4937616 (1990-06-01), Maeda et al.
patent: 4949185 (1990-08-01), Nakai
patent: 4996555 (1991-02-01), Takemoto et al.
patent: 5029989 (1991-07-01), Phillips
patent: 5070411 (1991-12-01), Suzuki
patent: 5262888 (1993-11-01), Morishita et al.
patent: 5390000 (1995-02-01), Tanibata
patent: 5457530 (1995-10-01), Nagai
patent: 5463445 (1995-10-01), Suzuki
patent: 5488450 (1996-01-01), Tanibata

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