Flat-plate optical device having a gradient index of refraction

Details Flat-plate optical device having a gradient index of refraction Flat-plate optical device having a gradient index of refraction

1991-06-03

1992-08-04

Arnold, Bruce Y.

Optical: systems and elements

Lens

With graded refractive index

359652, 359900, 358 55, 358250, G02B 500

Patent

active

051364280

ABSTRACT:
Distortion of the image displayed by a cathode ray tube display (10,10') can be compensated by placing a flat-plate optical device, fabricated from two plates (14,14') of optical material joined at their edges an an angle, in the field of view of the display. Each of the plates (14,14') is advantageously constructed so as to have a gradient index of refraction such that the index of the plate changes across its length from its free edge to the vertex (16) formed with the other plate. By fabricating each of the plates (14 and 14') such that the index of refraction of each decreases or increases from the free edge of each plate to the vertex formed with the other plate, the device formed by the plates will compensate for either barrel or pincushion distortion, respectively.

REFERENCES:
patent: 2999126 (1961-09-01), Harries et al.
patent: 3634617 (1972-01-01), Welford
patent: 3667832 (1972-06-01), Kitano et al.
patent: 3729253 (1973-04-01), Moore et al.
patent: 4245890 (1981-01-01), Hartman et al.
patent: 4331380 (1982-05-01), Rees et al.
patent: 4589736 (1986-05-01), Harrigan et al.
patent: 4929065 (1990-05-01), Hagerty et al.
J. A. Mauro, Optical Engineering Handbook, General Electric Company, 1966, pp. 26-39.

Affiliated with

Also associated with

Rating

Flat-plate optical device having a gradient index of refraction does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flat-plate optical device having a gradient index of refraction , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flat-plate optical device having a gradient index of refraction will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-783093