Patent ID: 8025450
Filing Date: 2011-09-27
Classification: G02B,G03B

Abstract:
1. A lens frame comprising: a hollow part into which a lens member, extending in a plane perpendicular to a direction of an optical axis, is inserted and on which a periphery of the lens member is fixed by an adhesive, the hollow part being formed by a concave section which is provided on an outer surface of the flank section, the outer surface being opposite to an inner surface of the flank section that faces the optical axis, wherein the concave section opens in an outward direction that is perpendicular to the optical axis and that extends away from the optical axis, the concave section including wherein the lens frame has a porous structure at least in a part of the lens frame which includes the spacing wall, the concave section is provided on a portion of the outer surface opposite to a portion of the inner surface that is contacted by the periphery of the lens member, and a thickness of the spacing wall in the outward direction is set such that the adhesive, inserted into the concave section, goes through the porous structure of the spacing wall and reaches the portion of the inner surface to fix the periphery of the lens member on the portion of the inner surface.