Patent ID: 7071458
Filing Date: 2006-07-04
Classification: G02B

Abstract:
1. An optical element comprising a transparent body including a first end face; a second end face forming a prescribed angle to the first end face; and a third end face having a plurality of light reflection parts formed on, which respectively reflect a plurality of light signals entering one of the first end face and the second end face to cause to exit at the other of the first end face and the second end face, a pitch of the plurality of light reflecting parts formed on the third end face, which are projected on the first end face being a first pitch, and a pitch of the plurality of light reflecting parts formed on the third end face, which are projected on the second end face being a second pitch which is different from the first pitch, wherein the plurality of light reflection parts formed on the third end face are tilted respectively by the same angle to the first end face.