Patent ID: 8238028
Filing Date: 2012-08-07
Classification: G02B

Abstract:
1. An erect equal-magnification lens array comprising: a first lens array plate including a first lens plate and a group of plural convex lenses arrayed on an emission surface of the first lens plate from which a beam is emitted, an incident surface of the first lens plate on which the beam is made incident being formed in a planar shape; a first aperture plate having plural apertures corresponding to plural projections of the plural convex lenses of the first lens array plate; a second lens array plate including a second lens plate and a group of plural convex lenses arrayed on both an incident surface of the second lens plate on which a beam is made incident and an emission surface of the second lens plate from which the beam is emitted; a second aperture plate including plural apertures corresponding to plural projections of the plural convex lenses on the emission surface of the second lens plate from which the beam is emitted; and a third lens array plate including a third lens plate and a group of plural convex lenses arrayed on an incident surface of the third lens plate on which a beam is made incident.