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:
Aug. 07, 2012

Filed:

Jun. 30, 2011
Applicants:

Kwang-seok Byon, Yongin-si, KR;

Jin-gi Lee, Changwon-si, KR;

Young-jae Hwang, Suwon-si, KR;

Inventors:

Kwang-seok Byon, Yongin-si, KR;

Jin-gi Lee, Changwon-si, KR;

Young-jae Hwang, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 41/00 (2006.01); G03B 9/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A light quantity adjustment apparatus includes a support plate with a first through hole, a rotation plate with a second through hole corresponding to the first through hole and rotatable with respect to the support plate, 2D iris plates rotatably connected to the support plate so as to move between a location in which the first through hole is completely opened and another location in which the first through hole is completely closed, two 3D iris plates each having one end rotatably connected to the support plate and another end engaged with the rotation plate, a shading plate, and a shading plate driving unit. The 2D iris plates adjust an open area of the first through hole. The two 3D iris plates move between a retreat location away from the first through hole and a photographing location where a first photographing hole and a second photographing hole are formed.


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