Optical part, lens barrel, and camera

Details Optical part, lens barrel, and camera Optical part, lens barrel, and camera

2008-01-25

2011-10-04

Sugarman, Scott J (Department: 2873)

Optical: systems and elements

Lens

With light limiting or controlling means

C359S740000

Reexamination Certificate

active

08031412

ABSTRACT:
An imaging optical system O supported by a lens barrel3includes a second lens group G2. The second lens group G2includes a fourth lens54and a black light shielding portion54dformed by printing. The light shielding portion54dis a film-shaped portion formed on the surface of the fourth lens54, and blocks harmful light in the imaging optical system O. The light shielding portion54dincludes a synthetic resin. The light shielding portion54dis disposed in a non-effective optical area of the fourth lens54. The effective light path of the imaging optical system O is determined by the light shielding portion54d.

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Japanese Office Action issued in Japanese Patent Application No. JP 2007-019051 dated Jul. 12, 2011.

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