Process for operating an exposure apparatus and exposure apparat

Details Process for operating an exposure apparatus and exposure apparat Process for operating an exposure apparatus and exposure apparat

1988-08-24

1990-05-01

Walberg, Teresa J.

Electric heating

Heating devices

Combined with diverse-type art device

219400, F27D 704, H05B 320

Patent

active

049220780

ABSTRACT:
A process and apparatus for obtaining uniform light distribution in an exposure apparatus having at least one fluorescent light tube involves heating the light tube along most of its length to a temperature above ambient temperature prior to activating the exposure apparatus. A heater is disposed on the back of a transparent partition and a blower is provided for circulating hot air.

REFERENCES:
patent: 2581959 (1952-01-01), Koehler
patent: 3457454 (1969-07-01), Boland
patent: 3779640 (1973-12-01), Kidd
patent: 4140385 (1979-02-01), Shaw

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