![]() ![]() G02B6/0013- Means for improving the coupling-in of light from the light source into the light guide. ![]() couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form G02B6/0011- Light guides Structural details of arrangements comprising light guides and other optical elements, e.g.couplings specially adapted for lighting devices or systems ![]() ![]()
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