Radiation-pattern-matched light-diffusing pattern for light...

Details Radiation-pattern-matched light-diffusing pattern for light... Radiation-pattern-matched light-diffusing pattern for light...

2005-08-02

2005-08-02

Ward, John Anthony (Department: 2875)

Illumination

Light modifier

Refractor

C362S026000, C362S334000, C362S551000, C349S065000, C385S129000, C385S901000

Reexamination Certificate

active

06923559

ABSTRACT:
An apparatus for illumination comprises a light source operable to generate a radiation pattern. The apparatus further comprises a light guide adjacent the light source, which is operable to be illuminated by the radiation pattern. The light guide comprises a pattern of varying sized dots operable to diffusely reflect the illuminating radiation pattern. The dot pattern comprises monotonically increasing dot sizes intermediate between the smallest and the largest dot sizes, such that the smallest dot size is proximate to the light source and the largest dot size is distal from the light source.

REFERENCES:
patent: 5134549 (1992-07-01), Yokoyama
patent: 5394308 (1995-02-01), Watanabe et al.
patent: 5667289 (1997-09-01), Akahane et al.
patent: 5931555 (1999-08-01), Akahane et al.
patent: 6612722 (2003-09-01), Ryu et al.

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