Invention Grant
- Patent Title: Compact zoom lens
- Patent Title (中): 紧凑型变焦镜头
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Application No.: US13046965Application Date: 2011-03-14
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Publication No.: US08526119B2Publication Date: 2013-09-03
- Inventor: Yoshito Iwasawa
- Applicant: Yoshito Iwasawa
- 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: KR10-2010-0022432 20100312
- Main IPC: G02B15/14
- IPC: G02B15/14

Abstract:
A zoom lens includes a first lens group including an optical path change member that changes an optical path, a second lens group including at least one negative lens and at least one positive lens, and lens groups having a positive refractive power. The first lens group is closer to an object side of the zoom lens and is fixed relative to an image plane during a zooming operation. The second lens group is adapted to move during the zooming operation. Each of the lens groups includes at least one positive lens, and the lens groups are closer to an image plane side of the zoom lens. The zoom lens satisfies vdLP>71, vdL2p 1.71, wherein “vdLP” is an Abbe number, “vdL2p” is an Abbe number, and “ndL2m” is a refractive index.
Public/Granted literature
- US20110222167A1 COMPACT ZOOM LENS Public/Granted day:2011-09-15
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