Lighting unit having a plurality of curved surface elements

Details Lighting unit having a plurality of curved surface elements Lighting unit having a plurality of curved surface elements

2005-08-30

2008-10-28

Ton, Anabel M (Department: 2875)

Illumination

Light modifier

Refractor

C362S328000, C362S309000, C362S800000

Reexamination Certificate

active

07441929

ABSTRACT:
The invention relates to a lighting unit having at least one light source and at least one light guide following the source and at least partially surrounding it, said light guide including at least one light exit surface facing away from the source and at least approximately located centrally, surrounded by at least one externally located light exit surface. In addition, at least one externally located light exit surface comprises a plurality of surface elements adjacent to each other with or without offset. These surface elements are surface regions of curved solids.With the present invention, a compact lighting unit is developed that makes possible a uniformly high yield in a preassigned target region.

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patent: 7182481 (2007-02-01), Shimura
patent: 2006/0050530 (2006-03-01), Stefanov et al.

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