LED lamp

Details LED lamp LED lamp

1991-09-06

1994-02-22

O'Shea, Sandra L.

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

313512, 362800, H01L 3300, G02B 304

Patent

active

052890821

ABSTRACT:
A LED lamp having a lead, a plurality of semiconductor chips placed on a tip portion of the lead, a translucent envelope surrounding the semiconductor chips, characterized in that the envelope is formed of a solid body containing parts of a plurality of ellipsoids or spheres whose axes extend through the semiconductor chips, respectively.

REFERENCES:
patent: 4185891 (1980-01-01), Kaestner
patent: 5013144 (1991-05-01), Silvergate et al.
Vol. 8-20; 90-5676, Apr. 11, 1990; "Led Lamp" by Satoshi Kamoto.

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