Optical coupler and refractive lamp

Details Optical coupler and refractive lamp Optical coupler and refractive lamp

1989-02-17

1990-10-09

Healy, Brian

Illumination

Supported by vehicle structure

Condition responsive

350 9615, 350 9616, 350 9620, 350 9622, 350432, 350436, 350440, 350413, 362 32, 362335, 362336, 370 1, 370 3, G02B 632, G02B 300, F21V 500, H04B 900

Patent

active

049616226

ABSTRACT:
A cuspate lens is disclosed having a slope magnitude which decreases from a maximum at a central cusp to a minimum at the periphery. A radially symmetric version of the lens can focus light into a ring, or produce an annular beam. Also disclosed are a fiber optic coupler and an optical slip ring using the cuspated lenses or other refractive devices capable of producing an annular beam of light, such as axicons or eccentric lenses. Also disclosed is a lamp using a cuspate lens or a multi-faceted version of a cuspate lens.

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