Invention Grant
- Patent Title: Zoom lens and image pickup apparatus including the same
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Application No.: US16583700Application Date: 2019-09-26
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Publication No.: US11243384B2Publication Date: 2022-02-08
- Inventor: Yuichi Gyoda
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Carter, DeLuca & Farrell LLP
- Priority: JPJP2018-188857 20181004
- Main IPC: G02B15/177
- IPC: G02B15/177 ; G02B15/14

Abstract:
Provided is a zoom lens including a plurality of lens units, in which an interval between each pair of adjacent lens units is changed for zooming. The plurality of lens units consist of, in order from an object side to an image side: a first lens unit having a negative refractive power; a second lens unit having a positive refractive power; and a rear lens group including at least two lens units. The first lens unit and the second lens unit are configured to move during zooming. The first lens unit includes, in order from the object side to the image side, a negative lens G1, a negative lens G2, and a negative lens G3.
Information query