Diffraction optics diffusing screen

Details Diffraction optics diffusing screen Diffraction optics diffusing screen

1982-07-30

1986-05-06

Arnold, Bruce Y.

350 9627, G02B 532

Patent

active

045867810

ABSTRACT:
Optical apparatus (48) includes the holographic optical element (16) which diffracts the incoming ray (15) in a diffuse cone toward a viewing pupil and at an angle parallel to the axis of fiber optic faceplate (48) so the central ray (17) of the diffused cone passes through optical fiber (54) toward the viewing pupil. This permits the zero-order undiffracted light in ray (25) to be absorbed in the fiber optic faceplate (48).

REFERENCES:
patent: 3043179 (1962-07-01), Dunn
patent: 3043910 (1962-07-01), Hicks, Jr.
patent: 3580655 (1971-05-01), Leith et al.
patent: 3708217 (1973-01-01), McMahon
patent: 3907403 (1975-09-01), Maeda
patent: 4118106 (1978-10-01), Leith
patent: 4189207 (1980-02-01), Fisher et al.
patent: 4215924 (1980-08-01), Matsumoto
IBM Technical Disclosure Bulletin, vol. 23, No. 2, issued Jul. 1980, (New York)-G. T. Sincerboy et al., "System to Increase the Efficiency of the Holographs Energy Distribution for Individual Chip Replacement", pp. 831-832.

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