Lens device

Details Lens device Lens device

2007-09-05

2008-11-04

Ben, Loha (Department: 2873)

Optical: systems and elements

Lens

With support

C359S811000, C359S820000, C451S460000

Reexamination Certificate

active

07446961

ABSTRACT:
A lens element has an annular flange portion which has a tapered lateral surface so as to form at least an annular clearance tapering from a rear edge thereof when it is received in a lens holder. An adhesive which is partly filled in the clearance curs in wedge-shape to secure the lens element to the lens holder, and besides forming wedges by which the lens element is forced and held in an axial direction so as thereby to prevent the lens element from falling out of the lens holder even if the adhesive exfoliates from either one or both of the lens element and the lens holder.

REFERENCES:
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patent: 7289282 (2007-10-01), Matsushima
patent: 2007/0121222 (2007-05-01), Watanabe
patent: 2007/0121223 (2007-05-01), Watanabe
patent: 11211957 (1999-08-01), None

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