Optical emission device

Details Optical emission device Optical emission device

1989-07-14

1990-03-06

Sikes, William L.

Electric lamp and discharge devices

With temperature modifier

For lead-in-seal or stem protection

357 72, 357 73, 357 74, 313498, 313499, H01L 3300, H05B 3302

Patent

active

049070444

ABSTRACT:
An optical emission device with an emitter semiconductor chip and a cover intended to be suitable for backlighting areas, the device having a comparatively low structural height and low packing density. The cover has a light aperture formed using a convex and concave lens for radiating light in a solid angle of maximum size. This device can also be used in combination with an additional external reflector and diffusion screen.

REFERENCES:
patent: 4560901 (1985-12-01), Thillays

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