Invention Grant
US09250423B2 Zoom lens system, interchangeable lens apparatus and camera system
有权
变焦镜头系统，可互换镜头设备和相机系统
- Patent Title: Zoom lens system, interchangeable lens apparatus and camera system
- Patent Title (中): 变焦镜头系统，可互换镜头设备和相机系统
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Application No.: US13916931Application Date: 2013-06-13
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Publication No.: US09250423B2Publication Date: 2016-02-02
- Inventor: Takuya Imaoka , Tsuneo Uchida , Shunichiro Yoshinaga , Masafumi Sueyoshi
- Applicant: PANASONIC CORPORATION
- Applicant Address: JP Osaka
- Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2012-135512 20120615; JP2013-088142 20130419
- Main IPC: G02B15/14
- IPC: G02B15/14 ; G02B27/64 ; G02B15/173
Abstract:
A zoom lens system, in order from an object side to an image side, includes a first lens unit having positive optical power; a second lens unit having negative optical power; a third lens unit having positive optical power; a fourth lens unit having negative optical power, and a subsequent lens unit. The first lens unit includes a negative lens element and a positive lens element. In the zoom lens system, the conditions: 1.47
Public/Granted literature
- US20130335617A1 ZOOM LENS SYSTEM, INTERCHANGEABLE LENS APPARATUS AND CAMERA SYSTEM Public/Granted day:2013-12-19
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