Patent ID: 9482937
Filing Date: 2016-11-01
CPC Classification: G02B,G03B,H04N

Claim Text:
1. An illumination system, comprising: a plurality of light source units, configured to provide a plurality of light beams; at least one light concentrating unit, corresponding to and disposed beside one of the light source units, wherein the at least one light concentrating unit has a first illuminating surface, one of the light source units corresponding to the at least one light concentrating unit has a second illuminating surface, each of the other light source units that do not correspond to the at least one light concentrating unit has a third illuminating surface, and an area of the second illuminating surface is substantially different from an area of each of the third illuminating surfaces; and at least one taper tunnel, corresponding to and disposed beside the at least one light concentrating unit, wherein the at least one light concentrating unit is located between the corresponding one of the light source units and the taper tunnel, the at least one taper tunnel has a fourth illuminating surface, and an area of the fourth illuminating surface is equal to the area of each of the third illuminating surfaces.