Light conductive plate and plane illuminating apparatus...

Details Light conductive plate and plane illuminating apparatus... Light conductive plate and plane illuminating apparatus...

F - Mech Eng,Light,Heat,Weapons

21

V

F21V 8/00 (2006.01) F21S 8/00 (2006.01) F21V 7/04 (2006.01) G02F 1/1335 (2006.01)

Patent

CA 2141919

A light conductive plate used in a side light source type plane illuminating apparatus having a light source arranged on one side portion of a transparent light conductive plate, has a dimming pattern composed of a plurality of curves provided on the back of said light conductive plate. Portions of each of the curves of the dimming pattern located nearer the edge near a light source extend substantially perpendicular to the edge and portions of each of the curves of the dimming pattern located farther from the edge near a light source extend substantially parallel to the edge.

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