Patent ID: 7042534

Claim:
A light conductor comprising: an incident surface portion, a prism surface portion, and an outgoing surface portion, wherein when light is input from an external source via said incident surface portion, said light reflects on said prism surface portion as a first reflected light, said prism surface portion outputs said first reflected light to an object through said outgoing surface portion, said outgoing surface portion receives a second reflected light that is reflected off said object and outputs said second reflected light to a viewpoint of an observer through the prism surface portion, wherein said prism surface portion comprises first and second strings of linear prisms that are regularly repeatedly formed in parallel to each other, said linear prisms having propagation portions for propagating said light from said external source and reflection portions for reflecting said light, wherein a first repetition direction of said first string of linear prisms, in a predetermined area in contact with said incident surface portion and in contact with a first end surface adjacent to said incident surface portion, is set in a first inclination direction inclining from said incident surface portion to said first end surface, and wherein a second repetition direction of said second string of linear prisms, in an area other than said predetermined area, is set in a second inclination direction inclining from said incident surface portion to a second end surface opposite to said first end surface.