OPTICAL LENS CLAMPING DEVICE

摘要

PROBLEM TO BE SOLVED: To make high the precision of the clamping and positioning of respective lenses in the redial and optical-axis directions when the temperature varies by pressing the lens in the ratial direction and optical axis direction when lens spherical parts are clamped. SOLUTION: The optical lens clamping device is equipped with a lens barrel CE, lenses L1 to L4 in order in the incidence direction of laser light, shrink fitters (clamping member) SS and SB, and a pacer SP. The shrink fitters SS clamps the lenses L1 to L3 and the shrink fitter SB clamps the lens L4. The shrink fitter SB forms a part (1st clamping part) which clamps the circumference of the lens L4 and a part (2nd clamping part) which abuts against the spherical surface part of the lens L4 to clamp the lens L4.