Patent ID: 8421838
Filing Date: 2013-04-16
Classification: B41J,G02B,H01L,Y10T

Abstract:
1. An optical device comprising: an optical element; a package member in which the optical element is held on a bottom surface of the package member in an area surrounded by walls; and a plate member that seals the area surrounded by the walls and the bottom surface in an airtight manner, the plate member being translucent and joined to the package member with a resin material, wherein the walls have a structure including steps, the plate member is joined onto one of the steps of the walls, and at least a part of the walls facing side surfaces of the plate member includes a positioning part for positioning the plate member and a retaining part for retaining the resin material, in a direction perpendicular to the bottom surface, and wherein the positioning part includes one or more cutout parts configured to retain the resin material, as viewed in the direction perpendicular to the bottom surface.