Patent ID: 7952821

Claim:
A lens barrel comprising: a holder having a first guide axis and a second guide axis; a lens frame having a first guide section movably fitted around the first guide axis and a second guide section movably fitted around the second guide axis, the lens frame retaining at least one lens; and an elastic member disposed between the holder and the second guide section for exerting an energizing force on the second guide section, wherein, the lens frame moves along an optical axis direction of the lens as the first guide section is guided by the first guide axis; the elastic member energizes the lens frame along the optical axis direction of the lens by exerting the energizing force on the second guide section; a distance from the holder to the second guide section and a distance from the holder to the first guide section are different; and the distance from the holder to the second guide section is longer than the distance from the holder to the first guide section.