Patent ID: 8462256

Claim:
A lens barrel, comprising: a first lens configured to receive a light flux incident along a first optical axis; a bending member including a reflecting surface configured to reflect the light flux passing through the first lens to a direction along a second optical axis intersecting with the first optical axis; a second lens configured to receive the light flux passing through the bending member; and a lens frame to which the bending member is fixed; the lens frame including a plurality of concave portions being open to an opposite side to the reflecting surface in a direction along the first or second optical axis, ultraviolet cure adhesive agent is filled in the concave portions to fix the bending member to the lens frame, and when the concave portions are open in a direction along the first optical axis, the capacity of the concave portions in an area around an end portion closer to the reflecting surface in a direction along the first optical axis being smaller than the capacity of the concave portions in an area around an opposite end portion to the reflecting surface in a direction along the first optical axis, and when the concave portions are open in a direction along the second optical axis, the capacity of the concave portions in an area around an end portion closer to the reflecting surface in a direction along the second optical axis being smaller than the capacity of the concave portions in an area around an opposite end portion to the reflecting surface in a direction along the second optical axis.