Gas separation: apparatus – Electric field separation apparatus – With means to add charged solid or liquid particles to...
Patent
1977-03-17
1978-05-02
Fisher, Richard V.
Gas separation: apparatus
Electric field separation apparatus
With means to add charged solid or liquid particles to...
96 34, 96 361, 96 383, 65DIG2, 65 30R, 65 33, 106 52, 106DIG6, 29 2517, 354 1, G03C 504, G03C 500, G03C 700, C03C 1500
Patent
active
040872807
ABSTRACT:
This invention relates to a method for reducing the amount of ambient light which is reflected by the phosphor located on the inside surface of a color television picture tube face plate. More particularly, the invention contemplates placing a green-absorbing optical filter in front of the red and blue phosphor areas. The filter is produced from gold-containing glass.
In carrying out the preferred embodiment of the invention, an opaque mask having holes of the desired shape and in the proper pattern is placed near a CeO.sub.2 -activated, photosensitive gold-containing glass, the glass is exposed through the mask to ultra-violet radiation, and thereafter subjected to a prescribed heat treatment to yield the color filters. The phosphors are applied in dot or slot-shaped configurations in the conventional manner with the blue and red phosphors being placed over the filters and the green phosphor in the clear area.
REFERENCES:
patent: 2825634 (1958-03-01), Rindone
patent: 3173850 (1965-03-01), Hood
patent: 3615459 (1971-10-01), Kaplan
patent: 3642651 (1972-02-01), Marboe et al.
patent: 3905791 (1975-09-01), Plumat et al.
patent: 3932183 (1976-01-01), Fisher et al.
patent: 3955981 (1976-07-01), Stackniak
patent: 4019905 (1977-04-01), Tomita et al.
patent: 4021239 (1977-05-01), Ogawa
patent: 4032342 (1977-06-01), Strik
Stookey Stanley Donald
Wedding Brent Merle
Corning Glass Works
Fisher Richard V.
Janes Jr. Clinton S.
Miga Frank W.
Patty, Jr. Clarence R.
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