Hot crimping structure and method for fixing a lens to a...

Optical: systems and elements – Lens – With support

Reexamination Certificate

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Details

C359S820000

Reexamination Certificate

active

06888690

ABSTRACT:
A hot crimping structure for fixing at least one lens element to a lens frame made of synthetic resin, the lens element being accommodated in a lens holder opening of the lens frame, a portion of the lens frame being crimped by heat to serve as a crimped edge which lies on a surface of the lens element adjacent to a rim of the lens element. The lens frame includes an outward expansion surface which extends outwards from a close vicinity of the rim of the lens element. A hot crimping tool is brought into contact with the outward expansion surface to form a recess on the outward expansion surface by heat, to thereby produce the crimped edge by movement of melting synthetic resin which is melted due to the formation of the recess.

REFERENCES:
patent: 5557474 (1996-09-01), McCrary
patent: 5798876 (1998-08-01), Nagano
patent: 5808817 (1998-09-01), Miyamoto et al.
patent: 6108145 (2000-08-01), McCrary
patent: 6144509 (2000-11-01), Baker
patent: 6198579 (2001-03-01), Rupp
patent: 6215604 (2001-04-01), Hori
patent: 6392825 (2002-05-01), Trunz et al.
patent: 6441976 (2002-08-01), Okorocha
patent: 7-43574 (1995-02-01), None
patent: 11277533 (1999-10-01), None
patent: 2002-189160 (2002-07-01), None

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