LENS ARRAY, LINEAR LIGHT EXPOSURE DEVICE, OPTICAL APPARATUS EMPLOYING THE LINEAR LIGHT EXPOSURE UNIT

摘要

PURPOSE: A lens array, a linear exposure apparatus, and an optical apparatus employing the same are provided to suppress a size deviation of an effective optical region of a lens corresponding to each light source, thereby reducing a periodic variation width of light quantity generated in an image surface according to a lens arrangement period. CONSTITUTION: An image side lens array part(200) arranges a plurality of lens cells in parallel to one or multiple lines of an optical axis. A light shielding part(250) is arranged in an incidence surface of the image side lens array part. The light shielding part includes a light transmission area for light transmission with respect to each lens cell of the image side lens array part. The light shielding part shields other area excluding the light transmission area. An effective optical area of a square shape is included in each lens cell of the image side lens array part.