Lighting system of adjustable color temperature

Details Lighting system of adjustable color temperature Lighting system of adjustable color temperature

2007-04-10

2007-04-10

Luebke, Renee (Department: 2875)

Illumination

Plural light sources

Particular wavelength

C362S293000, C362S616000

Reexamination Certificate

active

11023693

ABSTRACT:
A lighting system capable of adjusting color temperature is provided. The lighting system mainly comprises a light source module and a mixing assembly. The light source module produces red-color, blue-color, and green-color lights so as to control the color temperature of a white light resulted from mixing the color lights. The mixing assembly is located at a side of the light source module and comprises a first, a second, and a third mixing device sequentially arranged along the light transmission path. The function of the first and third mixing devices is for light mixing by causing the lights to undergo multiple internal reflections. The second mixing device directs the lights passing through the first mixing device in a reverse direction (180 degrees) and enters into the third mixing device.

REFERENCES:
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patent: 5812713 (1998-09-01), Allen et al.
patent: 5857761 (1999-01-01), Abe et al.
patent: 6318863 (2001-11-01), Tiao et al.
patent: 6540377 (2003-04-01), Ota et al.
patent: 6655809 (2003-12-01), Suzuki et al.
patent: 6655825 (2003-12-01), Muthu et al.

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