Spiral light guide tooth for car light

The utility model provides a spiral light guide tooth for car light, sets up in the bar light conductor, its characterized in that the full light guide tooth that sets up in week of bar light conductor, the light guide tooth is the heliciform and covers bar light conductor periphery, is the light guide space width who is heliciform cover bar light conductor periphery 0.5 2mm, is light guide tooth depth degree 0.3 1mm. According to the utility model discloses the light guide tooth design in full week, completely the envelope whole light guide face, utilized the light guide in the at utmost, " full input, full output " can be realized to same light source to whole photoconductive availability factor obtains improving.