Light emitting device

Details Light emitting device Light emitting device

2007-05-15

2007-05-15

Healy, Brian (Department: 2883)

Optical waveguides

Optical fiber waveguide with cladding

Utilizing nonsolid core or cladding

C385S123000, C385S141000, C385S031000

Reexamination Certificate

active

10528319

ABSTRACT:
The invention relates to a light emitting device consisting of one or more light sources coupled to a light guide containing diffuser particles having a refractive index close to the refractive index of the core of the light guide. The diffuser particles cause a scattering of the light emitted from the light sources so that light emitted from the light emitting device has colour variation imperceptible to the human eye and small and gradual variations in intensity.

REFERENCES:
patent: 4466697 (1984-08-01), Daniel
patent: 4733929 (1988-03-01), Brown
patent: 5117472 (1992-05-01), Blyler, Jr. et al.
patent: 5257329 (1993-10-01), Blyler, Jr. et al.
patent: 1558404 (1980-01-01), None
patent: WO 02/095289 (2002-11-01), None
Zhao et al., Optical Elements for Mixing Colored LEDs to Create White Light, SPIE Proceedings 4776, 2002, pp. 207-214.

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