| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lens support frame capable of effectively restricting ingress of minute dust into a gap between front and rear lenses while enabling the secure fixing of the front and rear lenses by the use of adhesive, and capable of preventing stay of gas between the front and rear lenses. <P>SOLUTION: The lens support frame comprises: a large diameter lens holding groove 15 formed such that one end face of an annular body part 14 is open in an axial direction thereof; a small diameter lens holding groove 16, smaller in diameter than the large diameter lens holding groove, formed such that the end part thereof on one side is open; a large diameter groove side bonding recessed part 19, recessed in the inner peripheral surface of the large diameter lens holding groove, into which adhesive to be applied to the outer peripheral surface of a large diameter lens L1 can be injected; and a small diameter groove side bonding recessed part 20, recessed in the inner peripheral surface of the small diameter lens holding groove, into which adhesive to be applied to the outer peripheral surface of a small lens L2 is injected. The circumferential position of the large diameter groove side bonding recessed part and that of the small diameter groove side bonding recessed part are displaced from each other, as viewed from the axial direction. <P>COPYRIGHT: (C)2013,JPO&INPIT |
