LED lamp with light guide

Details LED lamp with light guide LED lamp with light guide

2006-11-14

2006-11-14

Ward, John Anthony (Department: 2875)

Illumination

Plural light sources

With modifier

C362S331000, C362S332000, C362S334000, C362S520000, C362S521000, C362S522000

Reexamination Certificate

active

07134768

ABSTRACT:
Light emitted from a plurality of LED light sources can be introduced into a light guide and inwardly reflected (totally reflected) at a first reflective surface formed on the light guide to form a substantially collimated light. The substantially collimated light can then be inwardly reflected (totally reflected) at a second reflective surface and a third reflective surface. The light can then be led out of the light guide and emitted in a direction of illumination of the lamp. An increased amount of light provides a bright lamp. An arrangement of LEDs emitting different colored lights enables the different colored lights to be emitted at the same time or with time delays.

REFERENCES:
patent: 6264346 (2001-07-01), Pashley et al.
patent: 6268963 (2001-07-01), Akiyama
patent: 6332701 (2001-12-01), Yamada et al.
patent: 6469755 (2002-10-01), Adachi et al.
patent: 6811277 (2004-11-01), Amano
patent: 6953271 (2005-10-01), Aynie et al.
patent: 7021805 (2006-04-01), Amano et al.
patent: 7070301 (2006-07-01), Magarill
patent: 2006/0139916 (2006-06-01), You et al.
patent: 2002-216510 (2002-08-01), None

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