Light-emitting-diode (LED) with spherical lens

Details Light-emitting-diode (LED) with spherical lens Light-emitting-diode (LED) with spherical lens

1987-12-07

1989-06-20

James, Andrew J.

357 30, 357 56, 350 9618, H01L 330, H01L 2906

Patent

active

048413445

ABSTRACT:
A light-emitting diode has a lens secured in self-adjusted fashion to a mesa surface of a semiconductor body by means of adhesive. The mesa surface is substantially perpendicular and centered with an emission axis of the light-emitting diode. Preferably, the lens is spherical and the mesa surface has a diameter comparable to or smaller than a diameter of the lens.

REFERENCES:
patent: 4152712 (1979-05-01), Myers
patent: 4225380 (1980-09-01), Wickens
patent: 4331727 (1982-05-01), Maas
patent: 4342944 (1982-08-01), SpringThorpe
patent: 4383731 (1983-05-01), Simon et al.
patent: 4501637 (1985-02-01), Mitchell et al.
patent: 4653847 (1987-05-01), Berg et al.

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