| 20090001397 | Method and device for providing circumferential illumination - A light source device, comprising at least one light emitting element, an optical for distributing light emitted by the light emitting element(s) into a waveguide material which is in optical communication with the optical funnel, and at least one reflector contacting the waveguide material for redirecting light back into the waveguide material such as to reduce illumination exiting the waveguide material in any direction other than a circumferential direction. | 01-01-2009 |
