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:
Dec. 01, 2015

Filed:

Apr. 28, 2011
Applicants:

Sung-tae Kim, Seoul, KR;

Jeong-ho Nho, Suwon-si, KR;

Inventors:

Sung-tae Kim, Seoul, KR;

Jeong-ho Nho, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 17/00 (2006.01); G02B 17/08 (2006.01);
U.S. Cl.
CPC ...
G02B 17/0852 (2013.01); G02B 17/08 (2013.01); G02B 17/0896 (2013.01);
Abstract

The optical system includes: a first optical group which performs a zoom function using a first movable lens, a second optical group which performs a focus function using a second movable lens, and a third optical group which performs a wide angle function by reflecting light passing through the first optical group and the second optical group, wherein a first intermediate image is formed between the first optical group and the second optical group.


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