Patent ID: 8233114
Filing Date: 2012-07-31
Classification: B29D,G02F,G03F

Abstract:
1. An optical element comprising: a transparent layer made of a transparent photosensitive novolac-type epoxy resin, wherein said transparent layer comprises a plurality of transparent layer portions each having a V-shaped structure having an open side facing an emission surface of said transparent layer, the V-shaped structure having one opening in an entrance surface side and having a plurality of openings in the emission surface side; a light absorbing layer comprising a plurality of light absorbing portions made of a black curable resin disposed between said transparent layer portions; wherein said transparent layer portions and said light absorbing portions are provided alternately in a plane, and interface surfaces between said transparent layer portions and said light absorbing portions are slanted with respect to said plane, and the range of light transmitted through said emission surface of said transparent layer is restricted to discontinuous plural angles by said light absorbing portions, wherein the light transmitted through said emission surface is directed to a plurality of directions by means of said plurality of transparent layer portions each having the V-shaped structure.