Optical mirror, scanning optical device, image forming device, and manufacturing method for optical mirror

Abstract

An optical mirror with an elongated shape, including: a mirror including a substrate and a reflective surface formed on one end surface in a thickness direction of the substrate; a reinforcing member with an elongated shape bonded to a surface of the mirror opposite to the reflective surface; an adhesive layer disposed between the mirror and the reinforcing member, wherein the adhesive layer partially covers an adhesive surface between the mirror and the reinforcing member, and wherein on a central axis extending in a longitudinal direction of the adhesive surface, a sum of a maximum length of the adhesive layer in the longitudinal direction is 40% or more of a length of the adhesive surface in the longitudinal direction.

Dependencies are inferred from the claim text.