Invention Grant
- Patent Title: Zoom lens and imaging apparatus
- Patent Title (中): 变焦镜头和成像设备
-
Application No.: US12801615Application Date: 2010-06-17
-
Publication No.: US08154801B2Publication Date: 2012-04-10
- Inventor: Mitsuhiro Suzaki , Shinichi Arita , Takuya Anzawa
- Applicant: Mitsuhiro Suzaki , Shinichi Arita , Takuya Anzawa
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Rader, Fishman & Grauer PLLC
- Priority: JP2009-164570 20090713
- Main IPC: G02B27/64
- IPC: G02B27/64 ; G02B15/14

Abstract:
A zoom lens includes, in order from an object side to an image side: a first lens group that has a positive refractive power and remains stationary in a direction of an optical axis; a second lens group that has a negative refractive power and is movable on the optical axis so as to perform a zoom operation; a third lens group that has a positive refractive power and remains stationary in the direction of the optical axis during zooming and focusing; a fourth lens group that has a positive refractive power and is movable on the optical axis so as to correct fluctuation in imaging position and correct change in imaging position caused by change in object distance; and a fifth lens group that has a positive refractive power and remains stationary in the direction of the optical axis.
Public/Granted literature
- US20110007396A1 Zoom lens and imaging apparatus Public/Granted day:2011-01-13
Information query