Patent ID: 8576459
Filing Date: 2013-11-05
Classification: G02B,H04N

Abstract:
1. An erecting equal-magnification lens array plate comprising: a first lens array plate provided with a plurality of first lenses systematically arranged on a first surface and a plurality of second lenses systematically arranged on a second surface opposite to the first surface; and a second lens array plate provided with a plurality of third lenses systematically arranged on a third surface and a plurality of fourth lenses systematically arranged on a fourth surface opposite to the third surface; wherein the first lens array plate and the second lens array plate form a stack such that the second surface and the third surface face each other to ensure that a combination of the lenses aligned with each other form a coaxial lens system, the erecting equal-magnification lens array plate receives light from a linear light source facing the first surface and forms an erect equal-magnification image of the linear light source on an image plane facing the fourth surface, and an annular slope is formed around each second lens and/or each third lens, wherein the slope is formed to radially extend from the outer periphery of each second lens and/or each third lens in a tapered shape.