Photocopying – Projection printing and copying cameras – Focus or magnification control
Patent
1987-03-06
1988-08-30
Gellner, Michael L.
Photocopying
Projection printing and copying cameras
Focus or magnification control
355 56, 355 57, 355 14R, 355 8, G03B 2752
Patent
active
047680660
ABSTRACT:
The present invention relates to a copying machine for producing copies of variable magnification. The copying machine displays numerical values of a linear magnification and an area magification. The area magnification is square of the linear magnification. Furthermore the copying machine can be inputted arbitrary numerical values as the linear magnifications and the area magnifications.
REFERENCES:
patent: 4270173 (1981-05-01), Suttler
patent: 4533233 (1985-08-01), Kimura et al.
patent: 4543643 (1985-09-01), Shibukazi et al.
patent: 4575227 (1986-03-01), Ito et al.
patent: 4582419 (1986-04-01), Tanaka
patent: 4624552 (1986-11-01), Asako
patent: 4644499 (1987-02-01), Shibazaki et al.
Gellner Michael L.
Minolta Camera Kabushiki Kaisha
Rutledge D.
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