Ultraviolet-suppressed light source, coating agent used in the s

Details Ultraviolet-suppressed light source, coating agent used in the s Ultraviolet-suppressed light source, coating agent used in the s

1990-02-14

1991-09-24

Yusko, Donald J.

Electric lamp and discharge devices

With optical device or special ray transmissive envelope

Polarizer or special ray transmission

313489, 313493, 313635, 4271262, 4271263, H01J 516, H01J 6140

Patent

active

050516507

ABSTRACT:
A film consisting of a fine powder of zinc oxide and titanium oxide and an inorganic binder is formed on the outer surface of a light source. The fine powder serves as an absorbent for ultraviolet radiation emitted from the light source. The film is formed on the outer surface by spraying a coating agent prepared by dispersing the above components in an organic solvent on the outer surface of the light source and heating and drying the coating agent.

REFERENCES:
patent: 2774903 (1956-12-01), Burns
patent: 3531677 (1970-09-01), Loughridge
patent: 3676729 (1972-07-01), Menelly

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