| 摘要 |
A camera-attached lens device includes a lens barrel, a mount ring, pins, through holes, a positioning ring, and a fixing member. The lens barrel holds a lens system. The mount ring, attached to the lens barrel, has a tubular fitted portion coupling with the camera and a flange portion around the fitted portion. The pins are on the lens barrel and position a central axis of the mount ring with respect to an optical axis. The through holes are on the flange portion. The positioning ring outer diameter is smaller than a hole diameter of the through holes and has an opening where the pins are fitted. The fixing member fixes the positioning ring inside the through holes. The pins are restricted by the opening of the positioning ring fixed by the fixing member when the mount ring is positioned, positioning the lens barrel with respect to the mount ring.
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