Invention Grant
- Patent Title: Zoom lens and photographing apparatus including the same
- Patent Title (中): 变焦镜头和包括它的摄影装置
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Application No.: US13419742Application Date: 2012-03-14
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Publication No.: US09122041B2Publication Date: 2015-09-01
- Inventor: Jin-woo Kim
- Applicant: Jin-woo Kim
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si
- Agency: Drinker Biddle & Reath LLP
- Priority: KR10-2011-0089255 20110902
- Main IPC: G02B15/14
- IPC: G02B15/14 ; G02B27/64 ; G02B15/22 ; H04N5/225 ; G02B15/177

Abstract:
A zoom lens and a photographing apparatus including the zoom lens that includes a first lens group having a negative refractive power, a second lens group having a positive refractive power, and a third lens group having a positive refractive power that are sequentially arranged from an object side; during zooming from wide to telephoto, the distance between the first and second lens groups decreases and the distance between the second and third lens groups increases; the first lens group includes a first lens having a negative refractive power and is a double-concave lens and a second lens having a positive refractive power that are sequentially arranged from the object side; and the second lens group includes a third lens having a positive refractive power, being disposed closest to the image side, and is a meniscus lens having a concave surface toward the object side.
Public/Granted literature
- US20130057747A1 ZOOM LENS AND PHOTOGRAPHING APPARATUS INCLUDING THE SAME Public/Granted day:2013-03-07
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