| 摘要 |
PROBLEM TO BE SOLVED: To provide a micro-mirror array capable of facilitating mold release of arrays from a molding tool even in molding by using a resin, and also obtaining bright image forming with high luminance, and a manufacturing method thereof.SOLUTION: A micro-mirror array according to the present invention is a protruded micro-mirror array 10 constituted by a transparent flat plate-shaped base 1 and a plurality of convex unit optical elements 2 having a quadrangular prism shape. Four side faces of the respective convex unit optical elements 2 having a quadrangular prism shape are respectively formed to be an inclined surface which is tilted outward from the tip end side of the convex shape to the base side at such a small angle as 0.3° or more and less than 5°. Also, the micro-mirror array 10 can be produced, while employing a molding tool having a plurality of recesses in which a draft angle corresponding to the inclined surface of the convex unit optical elements 2 is provided on each of four inner wall surfaces thereof, such that each of the recesses is filled with a resin composition for forming the unit optical elements, which is cured in tight contact with the base 1 and released from the molding tool with the base 1. |
