LENS, LENS UNIT, AND IMAGING DEVICE

摘要

This lens 20 is provided with: a lens body 21 having a cylindrical surface 23 along the optical axis direction; and a fastening part 22 that protrudes towards the outside in the diametrical direction of the lens body 21, is smaller in diameter going from the image side towards the object side along the optical axis direction of the lens body 21, and has a sloping surface 24 that links to the lens body 21 at the cylindrical surface 23.