Invention Grant
- Patent Title: Zoom lens and image pickup apparatus using the same
- Patent Title (中): 变焦镜头和使用其的摄像设备
-
Application No.: US13869423Application Date: 2013-04-24
-
Publication No.: US08804249B2Publication Date: 2014-08-12
- Inventor: Tetsuya Yanai , Minoru Ueda , Mayu Miki
- Applicant: Olympus Imaging Corp.
- Applicant Address: JP Tokyo
- Assignee: Olympus Imaging Corp.
- Current Assignee: Olympus Imaging Corp.
- Current Assignee Address: JP Tokyo
- Agency: Kenyon & Kenyon LLP
- Priority: JP2012-102385 20120427; JP2012-102386 20120427; JP2012-102387 20120427; JP2013-003779 20130111
- Main IPC: G02B15/14
- IPC: G02B15/14
Abstract:
A zoom lens includes in order from an object side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, and a fourth lens unit having a positive refractive power, and at the time of zooming, the first lens unit moves, and the zoom lens satisfies the following conditional expressions (1-1a), (1-2a), and (1-3a). 0.43
Public/Granted literature
- US20130286277A1 Zoom Lens and Image Pickup Apparatus Using the Same Public/Granted day:2013-10-31
Information query
