| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lens retention diaphragm capable of reducing lens lifting effect due to wrinkle, breakage or elasticity of a marginal washer, and also reducing effect of moment stress on the lens at crimping. <P>SOLUTION: A lens retainer comprises: a sheet member having a plurality of notches on an outer circumference; two lenses pressed to each other and holding the sheet member therebetween; and a lens holding member for holding the two lenses and the sheet member. An inner diameter of the notches on the sheet member is located inside, in comparison with a diameter of the pressed two lenses. <P>COPYRIGHT: (C)2013,JPO&INPIT |
