Light extractor for a light guide lamp

Details Light extractor for a light guide lamp Light extractor for a light guide lamp

2006-02-07

2006-02-07

Cariaso, Alan (Department: 2875)

Illumination

Edge lighted panel

Light modifier for edge lit light source

C362S613000, C362S623000, C362S625000, C362S560000, C362S225000, C362S223000, C362S241000, C362S245000, C362S310000, C362S328000, C362S330000

Reexamination Certificate

active

06994462

ABSTRACT:
There is described a light extractor (8) for a light guide lamp (1) whose useful surface, that is to say, the surface that, in use, faces the emission surface (5) of the light guide lamp (1), comprises a predetermined distribution of diffusing points (10) and a complementary distribution of reflecting points (9). The light extractor (8) allows obtaining an illumination having preselected features. There are also described methods for determining such a distribution of points so as to obtain a highly uniform illumination.

REFERENCES:
patent: 4791540 (1988-12-01), Dreyer et al.
patent: 4805984 (1989-02-01), Cobb, Jr.
patent: 5040098 (1991-08-01), Tanaka et al.
patent: 5134549 (1992-07-01), Yokoyama
patent: 5882774 (1999-03-01), Jonza et al.
patent: 5931555 (1999-08-01), Akahane et al.
patent: 0 225 123 (1987-06-01), None
patent: 0 534 140 (1993-03-01), None
patent: 1 006 312 (2000-06-01), None
patent: TO98A000513 (1998-06-01), None
Merriam-Webster's Collegiate Dictionary, 10thedition, p. 160.

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