The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 29, 2012

Filed:

Nov. 04, 2010
Applicant:

Hiroyuki Kuroki, Osaka, JP;

Inventor:

Hiroyuki Kuroki, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 17/00 (2006.01); G02B 23/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A lens barrier unit that can further reduce the retraction space of lens barriers is provided. The lens barrier unit includes a barrier case having an opening; and multiple spherical barriers provided so as to pivot about a pivotal axis. The barriers can be shifted between a first state for closing the opening and a second state for opening the opening. In the second state, the barriers are all stored in the lower part of the barrier case.


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