Light diffusion type light emitting diode

Details Light diffusion type light emitting diode Light diffusion type light emitting diode

1988-09-01

1992-08-18

Yusko, Donald J.

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

313116, 313499, 362329, 362800, 34081517, H01J 516

Patent

active

051402203

ABSTRACT:
An improved light emitting diode housing member comprises a transparent housing that can extend over the light emitting surface of the LED and can position a plurality of granular optical particles, such as calcium fluoride, over the source of light to provide a diffusion of the emitted light, thereby increasing its viewing angle.

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patent: 3653959 (1972-04-01), Kehr et al.
patent: 3875456 (1975-04-01), Kano et al.
patent: 3900863 (1975-08-01), Kim
patent: 4168102 (1979-09-01), Chida et al.
patent: 4191943 (1980-03-01), Cairns et al.
patent: 4195330 (1980-03-01), Savage, Jr.
patent: 4415604 (1983-11-01), Nativi
patent: 4521835 (1985-06-01), Meggs et al.
patent: 4603496 (1986-08-01), Latz et al.
Visible Light-Emitting Diode by IBM, Authors Jacobus, Jr. and Stuby, vol. 10, #8, 1968, p. 1120.
Optical Crystals, by Optovac, 1982, pp. 5-1-5-4.

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