CPC Subgroup
F21S 43/235 Light guides
Full Title
Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights > characterised by refractors, transparent cover plates, light guides or filters > Light guides
7 direct subcodes
Child Classifications
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- F21S 43/236 characterised by the shape of the light guide
- F21S 43/242 characterised by the emission area
- F21S 43/247 with a single light source being coupled into the light guide
- F21S 43/249 with two or more light sources being coupled into the light guide
- F21S 43/251 the light guides being used to transmit light from remote light sources