Reflecting optical system for projection television

Details Reflecting optical system for projection television Reflecting optical system for projection television

1978-10-26

1980-11-18

Griffin, Robert L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358238, 358239, 350199, 350200, 350220, H04N 572, G02B 1700, G02B 934

Patent

active

042348943

ABSTRACT:
A projection television system having a light emitting target and a screen for realizing a projected video image is provided with an improved reflecting optical system which provides enhanced resolution and uniform correction of aberrations across a projected image. The optical system includes a concave mirror, positioned adjacent the light emitting target, for reflecting the video image towards the display screen. An optical compensating plate having at least one aspherical surface is located on the optical path. A meniscus lens is also located in the optical path. Both the optical compensating member and the meniscus lens can be positioned outside the vacuum envelope of the target and the electron gun to simplify alignment and construction.

REFERENCES:
patent: 2458132 (1949-01-01), Baker
patent: 2466329 (1949-04-01), Samson et al.
patent: 2960615 (1960-11-01), Harries
patent: 4073574 (1978-02-01), Clarke et al.

Affiliated with

Also associated with

Rating

Reflecting optical system for projection television does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reflecting optical system for projection television, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reflecting optical system for projection television will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-600592