Scanning exposure apparatus

Details Scanning exposure apparatus Scanning exposure apparatus

1997-11-25

1999-08-03

Metjahic, Safet

Photocopying

Projection printing and copying cameras

Original moves continuously

355 40, G03B 2748, G03B 2752

Patent

active

059332140

ABSTRACT:
An exposure apparatus in which a photographic light-sensitive material is exposed to a light image of an original, includes: a light illuminating member for illuminating a light to the original; an optical member for projecting a light transmitted through or reflected on the illuminated original onto an exposure position as a line image of the original; a material conveyor for conveying the material at a constant speed while the line image of the original is projected onto the material; a moving member for moving the original at a definite speed while the line image of the original is projected onto the material; and a start position determining member for determining a start position of the original at which the moving member starts moving according to magnification of the projected image of the original or image density of the original. The moving member starts moving the original from the start position, thereby the definite speed of the original while the slit image of the original is projected onto the material, is varied.

REFERENCES:
patent: 4774547 (1988-09-01), Uchida et al.
patent: 5087938 (1992-02-01), Nagumo et al.
patent: 5502542 (1996-03-01), Takano
patent: 5559585 (1996-09-01), Takagi
patent: 5669048 (1997-09-01), Nishio et al.

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