Projection cathode-ray tube

Details Projection cathode-ray tube Projection cathode-ray tube

1991-05-03

1993-01-05

Yusko, Donald J.

Electric lamp and discharge devices

Cathode ray tube

Screen

313473, 313474, 313489, 313112, 358250, 358253, H01J 170, H01J 2910

Patent

active

051774003

ABSTRACT:
A projection cathode-ray tube includes a transparent protective layer interposed between a face panel and an optical multilayered interference film. In order to prevent a browning discoloration from occurring on the glass surface of the face panel caused by a direct chemical reaction between the glass surface and the optical multilayered interference filter due to an electron bombardment, the transparent protective layer, made from inorganic materials, is disposed between the face plate and the optical multilayered interference filter. The transparent protective layer is made of silicon dioxide (SiO.sub.2) or aluminum oxide (Al.sub.2 O.sub.3), and has a thickness of 0.05 micrometer or less, or 0.5 micrometer or more, respectively.

REFERENCES:
patent: 4633133 (1986-12-01), Khurgiy
patent: 4634926 (1987-01-01), Vriens
patent: 4642695 (1987-02-01), Iwasaki
patent: 4647818 (1987-03-01), Vriens et al.
patent: 4683398 (1987-07-01), Vriens et al.
"Radiation Damage in Projection CRT Glass" to A. Rengan et al, Proceedings of the SID, vol. 26/I, 1985.

Affiliated with

Also associated with

Rating

Projection cathode-ray tube does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Projection cathode-ray tube, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Projection cathode-ray tube will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2392951