LENS HOLDING DEVICE

PROBLEM TO BE SOLVED: To provide a lens holding device capable of adjusting a lens without one-sided blurring with a simple work without disassembling a lens unit. SOLUTION: The lens holding device includes a plastic lens 1, and the device includes an engagement part 1a engaging with the inner periphery of a lens holding barrel 9 holding the plastic lens, and a gear part 1b capable of performing azimuth adjustment of the plastic lens, on the outer periphery of the plastic lens 1 in the lens holding barrel 9. The device adjusts one-sided blurring due to irregularity of the plastic lens by rotating the gear part 1b of the plastic lens 1 at an optical performance inspection after assembling the lens barrel, can fix the plastic lens 1 with a fixing member also serving as an azimuth adjustment tool, and is suitable for the lens barrel using a large-diameter plastic lens. COPYRIGHT: (C)2009,JPO&INPIT