公开(公告)号：US11408581B2

公开(公告)日：2022-08-09

申请号：US17414013

申请日：2019-12-17

Applicant: Valeo Vision

Inventor： Sylvain Prime ,  Maxime Laminette

IPC: F21S43/50 ,  F21S43/241 ,  F21W104/00

Abstract: The invention relates to an optical guide made from transparent or translucent material extending along a main direction and including a rounded, tubular guide portion formed with a rounded, tubular dioptric interface, the tubular guide portion being suitable for guiding light along the main direction through successive reflections off the dioptric interface with a rib adjacent to the guide portion that is suitable for allowing light to exit the tubular guide portion. The rib exhibits a variable shape along the main direction so as to modify the amount of light that exits along the main direction. The invention also relates to a lighting module that includes the optical guide and a lighting device that includes the lighting module.