Exposure system

Details Exposure system Exposure system

1976-12-15

1978-09-26

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

With radiant energy sensitive control means

Load device irradiating the radiant energy responsive device

250205, 315158, 355 69, H05B 3702, H05B 4138

Patent

active

041173759

ABSTRACT:
An exposure system is described employing a lamp and means for controlling the exposure time period during which light from the lamp at a preselected level is passed through a light path to an exposure plane. Light is detected in the light path and the brightness of the lamp is adjusted according to the sensed light to provide the preselected level of light output from the lamp during the exposure period. Also described is a method for operating such a system.

REFERENCES:
patent: 2885563 (1959-05-01), Batina et al.
patent: 3360650 (1967-12-01), Lawrence
patent: 3743405 (1973-07-01), Morse et al.

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