Lens device and lens barrel

Details Lens device and lens barrel Lens device and lens barrel

2007-01-16

2008-12-30

Spector, David N (Department: 2873)

Optical: systems and elements

Lens

With support

C359S819000

Reexamination Certificate

active

07471470

ABSTRACT:
A lens device includes elastic bracing struts arranged at regular intervals which are deformed by a lens element supported in a lens barrel so as thereby to hold down a periphery of the lens element in directions perpendicular to an optical axis of the lens element with elastic force when the lens element causes a diametrical change due to environmental variations, so that the lens element is prevented from being brought into misalignment, and besides retaining its optical performance.

REFERENCES:
patent: 3601343 (1971-08-01), Sivaslian
patent: 4778252 (1988-10-01), Filho
patent: 5754350 (1998-05-01), Sato
patent: 6525888 (2003-02-01), Schletterer
patent: 6560045 (2003-05-01), Schletterer
patent: 7342732 (2008-03-01), Dang et al.
patent: 2000-187144 (2000-07-01), None

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