Patent ID: 9063404
Filing Date: 2015-06-23
Classification: F21V,G02B,G03B,H04N

Abstract:
1. A light source apparatus comprising: a plurality of light sources that emit light having a wide spread angle at a fast axis and a narrow spread angle at a slow axis, a first refractive optical element that converts light emitted from the plurality of light sources at the fast axis to parallel light, a second refractive optical element that converts the light emitted from the plurality of light sources at the slow axis to parallel light, and a mirror group that includes a plurality of mirrors, the plurality of mirrors reflecting the light emitted from the plurality of light sources in a same direction so that light beams of the light emitted from the plurality of light sources are parallel with each other, wherein the plurality of light sources are arranged along the fast axis, and the mirror group is arranged such that an interval between the light beams of the light emitted from the plurality of light sources at the fast axis is narrowed.