Optical filter assembly for enhancement of image contrast and gl

Details Optical filter assembly for enhancement of image contrast and gl Optical filter assembly for enhancement of image contrast and gl

1988-04-11

1989-07-11

Arnold, Bruce Y.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

350164, 4271266, 427162, 427163, G02B 528, G02B 110

Patent

active

048465518

ABSTRACT:
An optical interference filter structure incorporates antireflectance and light absorbing elements disposed on a substrate. The filter structure is shaped to conform substantially to the face of a cathode ray tube or other luminous display, such as a cathode ray tube for example. The materials of the elements are selected for their characteristics including indices of refraction, light absorption and chromatic filtering so that in combination they provide optimum antireflectance, antiglare and image contrast features.

REFERENCES:
patent: 3516720 (1970-06-01), Mauer
patent: 3576356 (1971-04-01), Hyman
patent: 3804491 (1974-04-01), Morokuma et al.
patent: 3935351 (1976-01-01), Franz
patent: 4132919 (1979-01-01), Maple
patent: 4161547 (1979-07-01), Kienel
patent: 4333983 (1982-06-01), Allen
patent: 4387960 (1983-06-01), Tani
patent: 4465337 (1984-08-01), Baron et al.

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