Photocopying – Projection printing and copying cameras – Distortion introducing or rectifying
Patent
1987-01-21
1988-02-02
Wintercorn, Richard A.
Photocopying
Projection printing and copying cameras
Distortion introducing or rectifying
355 8, 355 47, 355 55, G03B 2768
Patent
active
047231548
ABSTRACT:
When directing a slit-like image information light to an imaging lens through a condensing lens, the refractive power of the condensing lens is made to differ between the lengthwise direction and the slit width direction of the slit light beam, whereby the light is effectively received without the read image being deteriorated. Also, when a convergent light transmitting member array is used as the imaging lens, the refractive power of the condensing lens is made to differ between the lengthwise direction of the array and a direction orthogonal to the lengthwise direction of the array, whereby the light is effectively received without the read image being deteriorated.
REFERENCES:
patent: 3157883 (1964-11-01), Easter
patent: 3644037 (1972-02-01), Larraburu
patent: 3700325 (1972-10-01), Harper
patent: 4298271 (1981-11-01), Sugiura et al.
patent: 4523838 (1985-06-01), Yamada
patent: 4650317 (1987-03-01), Oushiden et al.
patent: 4678321 (1987-07-01), Inokuchi
Canon Kabushiki Kaisha
Wintercorn Richard A.
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