Illumination system for a display device

Details Illumination system for a display device Illumination system for a display device

1988-12-07

1990-05-08

Lazarus, Ira S.

Illumination

Revolving

362293, 362308, 362327, 362223, 362268, 40444, 40546, F21V 800

Patent

active

049243560

ABSTRACT:
An illumination system for a display device includes a plurality of lenslets which provide partially collimated light with respect to at least one axis of the display. A light box provides uncollimated light to the lenslets. The light box includes a reflector having apertures which transmit light from the light box to the lenslets. The internal surfaces of the light box and the reflector are highly and diffusely reflective and a high percentage of the light reaches the lenslets.

REFERENCES:
patent: 3840695 (1974-10-01), Fischer
patent: 4263594 (1981-04-01), Masucci
patent: 4330813 (1982-05-01), Deutsch
patent: 4668049 (1987-05-01), Canter et al.
patent: 4686519 (1987-08-01), Yoshida et al.
patent: 4798448 (1989-01-01), van Raalte
IBM Technical Disclosure Bulletin, vol. 29, No. 11, Apr. 1987 p. 4838.

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