Light printer with photoelectric light quantity control means

Details Light printer with photoelectric light quantity control means Light printer with photoelectric light quantity control means

1991-04-04

1992-11-24

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

358 75, 359249, G01V 132

Patent

active

051665107

ABSTRACT:
A light printer with a light shutter having an array of electro-optical elements is disclosed. The light printer provides with a detection circuit for monitoring temperature and/or time dependent variations regarding the electro-optical elements of the light shutter and a driving voltage control circuit for controlling an optimum driving voltage of the light shutter according to results detected by the detection circuit.

REFERENCES:
patent: 4071751 (1978-01-01), Waksberg
patent: 4095099 (1978-06-01), Ehrenhaft
patent: 4629879 (1986-12-01), Baldwin et al.

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