Patent ID: 8373938
Filing Date: 2013-02-12
Classification: G02B

Abstract:
1. A lens unit comprising: plural optical components including a lens, a lens barrel that contains and holds the plural optical components; and a shielding member that is disposed at a position interposed between a first component and a second component adjacent each other of the optical components housed in the lens barrel and limits a passing luminous flux, wherein at least one of the first component and the second component has a position regulating section that regulates a position of the shielding member in a direction crossing an optical axis, and the shielding member has an engagement section that engages with the position regulating section, wherein the engagement section has an opening provided in the shielding member, and the position regulating section has a protrusion that is formed in the first component and enters into the opening, and wherein the second component has a depression at a position facing the opening, and the protrusion is a protrusion having a height which enables the protrusion to pass through the opening of the shielding member and enter into the depression.