Color cathode ray tube

Details Color cathode ray tube Color cathode ray tube

1995-06-05

1996-04-09

Yusko, Donald J.

Electric lamp and discharge devices

Cathode ray tube

Envelope

H01J 3100

Patent

active

055064701

ABSTRACT:
A color cathode ray tube includes a face plate having a curved inner surface and a substantially rectangular effective area. A phosphor screen is formed on the inner surface of the face plate, and a shadow mask is arranged to oppose the phosphor screen. The effective area is formed such that, in an area of the effective area which is away from the center of the effective area by 1/2 or more of a distance between the center of the effective area and an axial end portion of the effective area in the major axis, a difference between the thickness of the face plate at a point which is on the minor axis and located away from the center of the effective area by a predetermined distance and the thickness of the face plate at a point which is on the diagonal axis and located away from the center of the effective area by the predetermined distance is smaller than a difference between the thickness of the face plate at the point on the diagonal axis and the thickness of the face plate at a point which is on the major axis and located away from the center of the effective area by the predetermined distance.

REFERENCES:
patent: 4535907 (1985-08-01), Tokita et al.
patent: 4631441 (1986-12-01), Morrell et al.
patent: 4677339 (1987-06-01), Inoue et al.
patent: 4697119 (1987-09-01), Inoue et al.
patent: 4777401 (1988-10-01), Hosokoshi et al.
patent: 4839556 (1989-06-01), Ragland, Jr.
patent: 4881004 (1989-11-01), Inoue et al.
patent: 4943754 (1990-07-01), Hirai et al.
patent: 5151627 (1992-09-01), Van Nes et al.
patent: 5155410 (1992-10-01), Wakasono et al.
Patent Abstracts of Japan, vol. 013, No. 416 (E-831) 14 Sep. 1989 & JP-A-01 154 443 (Toshiba) 16 Jun. 1989.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-141051