Slit illumination system for copying machine and the like

Details Slit illumination system for copying machine and the like Slit illumination system for copying machine and the like

1991-03-15

1991-12-24

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Illumination systems or details

G03B 2754

Patent

active

050757202

ABSTRACT:
A slit illumination system provided in an image forming apparatus of slit exposure type for slit-illumination of an original placed on a document glass table in the image forming apparatus. The slit illumination system is provided with a light source including an elongated exposure lamp to illuminate the original at a slit-illuminated position on the document glass table, a main reflecting mirror portion composed of first and second reflecting mirrors, and an auxiliary reflecting mirror portion composed of third and fourth reflecting mirrors. The first, second, third and fourth reflecting mirrors are respectively shaped to follow a part of first, second, third and fourth ellipsoids which are different in curvature from each other.

REFERENCES:
patent: 3947115 (1976-03-01), Hamaguchi
patent: 3982116 (1976-09-01), Sakuma
patent: 4239383 (1980-12-01), Peterson
patent: 4259711 (1981-03-01), Mochizuki
patent: 4333130 (1982-06-01), Mochizuki et al.
patent: 4483609 (1984-11-01), Harada
patent: 4518249 (1985-05-01), Murata et al.
patent: 4525059 (1985-06-01), Haramaki
patent: 4668081 (1987-05-01), Imamura
patent: 4733280 (1988-03-01), Irie
patent: 4809043 (1989-02-01), Minami
patent: 4816875 (1989-03-01), Takeda et al.
patent: 4851975 (1989-07-01), Kanai

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