Image exposure device

Details Image exposure device Image exposure device

2007-08-21

2007-08-21

Nguyen, Henry Hung (Department: 2851)

Photocopying

Projection printing and copying cameras

Illumination systems or details

C355S053000

Reexamination Certificate

active

11090856

ABSTRACT:
An image exposure device includes an exposure head for forming a desired pattern on a photosensitive material. The exposure head is equipped with a light source for emitting a great number of light beams, a spatial light modulator in which a great number of pixel portions are arranged for independently modulating the light beams emitted from the light source, a micro lens array in which a great number of micro lenses are arranged for individually converging the great number of light beams modulated by the pixel portions, and a total of two or more aperture arrays arranged in the stage before the micro lens array and/or the stage after the micro lens array. Each of the aperture arrays has a great number of apertures for individually restricting the light beams.

REFERENCES:
patent: 4939630 (1990-07-01), Kikuchi et al.
patent: 5619304 (1997-04-01), Yasuzato
patent: 5724122 (1998-03-01), Oskotsky
patent: 6876494 (2005-04-01), Ishikawa et al.
patent: 2003/0214571 (2003-11-01), Ishikawa et al.
A. Ishikawa, “Shortening of Development and Application of Mass Production by Maskless Exposure”, Electronics Mounting Technology, 2002, pp. 74-79, vol. 18, No. 6.

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