Light guide tube for transmission of light beam, has plastic material which surrounds optical waveguide and forms tubular structure, and comprises light entrance and light exit, so that light exit ends are arranged around light exit

摘要

The light guide tube (30) has several optical waveguides each comprising light exit end and a light entrance end. A light beam enters the light entrance end and reemerges at the light output end. A plastic material which surrounds the optical waveguide is fixed to each other in position and forms the tubular structure, and comprises light entrance (32) and light exit (31). The light exit ends are arranged around the light exit.