Lens assembly

Details Lens assembly Lens assembly

2011-06-28

2011-06-28

Dinh, Jack (Department: 2873)

Optical: systems and elements

Lens

With support

C359S811000, C359S818000, C359S740000

Reexamination Certificate

active

07969667

ABSTRACT:
A lens assembly comprises a lens group M and a lens frame1for retaining the lens group M. In this lens assembly, the lens frame1has an entire circumference support2bfor supporting the rim on the subject side, of each lens M, across the entire circumference thereof, and an end face support2afor supporting the lens M on the image side. Each lens M comprises a chamfer3bformed at a rim of a lens surface on the subject side across the entire circumference thereof, and the entire circumference support2bsupports the chamfer3bsuch that the entire circumference support2bis continuous with the lens surface at substantially the same radius of curvature with the lens surface. According to the present invention, there is provided a lens assembly which can reduce size and cost and has stable lens retaining ability.

REFERENCES:
patent: 7-1071 (1995-01-01), None
patent: 07-010710 (1995-02-01), None
patent: 2007-065017 (2007-03-01), None
patent: 2007-121612 (2007-05-01), None

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