Title:
ズームレンズを備えた撮像装置
Document Type and Number:
Japanese Patent JP5959294
Kind Code:
B2
Abstract:
An image pickup apparatus includes a zoom lens and an image pickup element. The zoom lens includes a first positive lens unit, a first negative lens unit, a stop, and a second positive lens unit. For zooming, the first positive lens unit is stationary, the first negative lens unit moves, and the second positive lens unit moves. A position at a telephoto end of the first negative lens unit is on the image side of a position at the wide angle end. A position at a telephoto end of the second positive lens unit is on the object side of a position at the wide angle end. For focusing, the first positive lens unit is stationary. A first positive lens unit object-side system has a negative refractive power. A first positive lens unit image-side system has a positive refractive power. The image pickup apparatus satisfies predetermined conditional expressions.
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Inventors:
Kamura Kawamura
Yu Morooka
Nakagawa Koji
Toshio Takahashi
Yu Morooka
Nakagawa Koji
Toshio Takahashi
Application Number:
JP2012103345A
Publication Date:
August 02, 2016
Filing Date:
April 27, 2012
Export Citation:
Assignee:
Olympus Endo Technology America Inc.
International Classes:
G02B15/20; G02B15/16
Domestic Patent References:
| JP2009198721A | ||||
| JP2011141328A | ||||
| JP2009198719A | ||||
| JP2011128445A | ||||
| JP2011164194A | ||||
| JP200698685A |
Attorney, Agent or Firm:
Keisuke Saito
Iwao Hirayama
Iwao Hirayama