Method of manufacturing correction filter for exposing screens o

Details Method of manufacturing correction filter for exposing screens o Method of manufacturing correction filter for exposing screens o

1981-07-15

1983-02-22

Hoffman, James R.

Coating processes

Measuring, testing, or indicating

Thickness or uniformity of thickness determined

427 68, 427110, 427164, 427168, B05D 102, B05B 1206

Patent

active

043748660

ABSTRACT:
To obtain the desired light-intensity distribution in lighthouses for exposing color-picture-tube screens, use is made of light filters. The filter disclosed is obtained by spraying droplets of an opaque paint onto a suitable transparent support.

REFERENCES:
patent: 3773541 (1973-01-01), Ng et al.

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