Optical system for light emitting diodes

Details Optical system for light emitting diodes Optical system for light emitting diodes

1993-10-08

1996-01-16

Epps, Georgia Y.

Optical: systems and elements

Lens

Including a nonspherical surface

359708, 359718, G02B 302, G02B 1318

Patent

active

054853176

ABSTRACT:
The diode is incorporated in a fixed manner on the optical axis of a carrier lens. The carrier lens consists of a front portion with an outer transverse surface, formed concave towards the emitted light, and a longitudinal portion for incorporating he diode. The longitudinal portion has its outer longitudinal surface formed concave towards the diode. The concave transverse surface is surrounded by a further outer transverse system. The concave longitudinal surface is arranged to reflect the diode-emitted light rays towards the further outer transverse surface, which is arranged to transmit the light rays to the outside in a longitudinal direction.

REFERENCES:
patent: 2215900 (1940-09-01), Bitner
patent: 2224178 (1940-12-01), Bitner
patent: 2254961 (1941-09-01), Harris
patent: 4770514 (1988-09-01), Silverglate

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