| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens barrel of a camera capable of surely intercepting external light even when a lens frame is eccentric to an optical axis. SOLUTION: The lens barrel has: a first lens frame 2; a second lens frame 3 moving turnably relative to the first lens frame; and a third lens frame 5 moving in an optical axis direction relative to the first lens frame. A first light shielding member 3f having a ring-shaped inward flange having an inside diameter a little larger than the outside diameter of the third lens frame is protrusively formed on the inner peripheral surface of the edge part of the second lens frame. A ring-shaped supporting body 32 engaged with the first lens frame, and a second light shielding member 31 provided integrally with the supporting body and equipped with a light shielding sheet 33 having a lip part 33a elastically deformed to press-contact with the outer peripheral surface of the third lens frame are arranged in space near a fitting part between the second lens frame and the first lens frame. The light shielding sheet intercepts a light beam made incident on a camera body from a gap between the first light shielding member having the ring-shaped inward flange and the outer peripheral surface of the third lens frame when the supporting body moves in the optical axis direction and a radial direction by making the third lens frame eccentric to the optical axis. COPYRIGHT: (C)2007,JPO&INPIT
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