Method of making miniature coupling lens

Details Method of making miniature coupling lens Method of making miniature coupling lens

1977-02-22

1978-08-22

Lindsay, Jr., Robert L.

Glass manufacturing

Processes

With chemically reactive treatment of glass preform

65 3A, 65 30E, 65DIG7, 156605, 156606, 156612, 264 1, 350 9618, 350175GN, C03C 2100

Patent

active

041086228

ABSTRACT:
A miniature optical lens for coupling is fabricated from selected high rective index semiconductor material of uniform thickness. Refractive index gradients are generated in the semiconductor material through changes in composition developed under controlled conditions producing a desired focal length for determinable wavelengths of light energy emitted from a light source to which the miniature optical lens is coupled. The miniature optical lens thus fabricated is especially efficient for coupling light energy from light emitting diodes and junction lasers as well as in semiconductor micro-optics within the visible and the infrared wavelengths as well because the index of refraction of the lens material may be closely matched to the index of refraction of the light source, minimizing light energy transfer losses.

REFERENCES:
patent: 3603666 (1971-09-01), Uchida et al.
patent: 3636473 (1972-01-01), Young
patent: 3653761 (1972-04-01), Hicks
patent: 3875532 (1975-04-01), Kobayashi et al.
patent: 3923373 (1975-12-01), Dabby et al.
patent: 3963539 (1976-06-01), Kemlage

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