CPC B29D 11/00432 (2013.01) [B23K 26/02 (2013.01); B25B 11/002 (2013.01); B25J 9/0084 (2013.01); B25J 15/0293 (2013.01); B25J 15/0616 (2013.01); B25J 15/10 (2013.01); B29D 11/00865 (2013.01)] | 10 Claims |
1. A lens positioning mechanism comprising:
a member holding unit that has a function of holding a second surface of a lens member having a first surface, which is a convex optical surface, and the second surface, which is an optical surface facing the first surface, and biasing the held lens member toward a side of the first surface; and
an attitude control unit that regulates edge positions of a plurality of portions on the first surface of the lens member biased by the member holding unit to position the lens member in a predetermined attitude,
wherein the attitude control unit is configured to regulate the edge positions by a tapered portion that extends in a biasing direction of the lens member, wherein the edge positions are configured to abut on the tapered portion.
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