Light source

Details Light source Light source

1998-09-09

2000-08-01

O'Shea, Sandra

Illumination

Light source and modifier

Including reflector

362297, 362800, 362346, F21V 700

Patent

active

060956666

ABSTRACT:
An LED light source for a lensed lamp is described. An LED chip sits in a hollow having a rectangular floor. A lower portion of the hollow has steep walls and accommodates the part of the chip that does not emit light. An upper part of the hollow has four side reflectors extending parallel to the sides of the chip and four corner reflectors. The hollow is formed by coining. The light source provides more uniform light than do previous arrangements having convergent lenses. The vertical viewing angle of the lamp is maintained throughout the whole of the horizontal viewing angle range of the lamp.

REFERENCES:
patent: 1726379 (1929-08-01), Benford
patent: 4964025 (1990-10-01), Smith
patent: 5001609 (1991-03-01), Gardner
patent: 5013144 (1991-05-01), Silvergate
patent: 5289082 (1994-02-01), Komoto
patent: 5557115 (1996-09-01), Shakuda

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