SINGLE FOCUS IMAGE PICKUP OPTICAL SYSTEM, AND IMAGE PICKUP DEVICE AND CAMERA SYSTEM USING SINGLE FOCUS IMAGE PICKUP OPTICAL SYSTEM

Title:

SINGLE FOCUS IMAGE PICKUP OPTICAL SYSTEM, AND IMAGE PICKUP DEVICE AND CAMERA SYSTEM USING SINGLE FOCUS IMAGE PICKUP OPTICAL SYSTEM

Document Type and Number:

WIPO Patent Application WO/2019/009225

Kind Code:

A1

Abstract:

This single focus image pickup optical system sequentially comprises, from the object side to the image side, a first lens group (G1) having positive power, a second lens group (G2) having positive power, and a third lens group (G3) having negative power. At the time of performing focusing, the second lens group (G2) moves along an optical axis, and the first lens group (G1) and the third lens group (G3) do not move. Consequently, the single focus image pickup optical system capable of excellently correcting aberrations, such as spherical aberration, astigmatism, and distortion, and an image pickup device and a camera system, which are provided with the single focus image pickup optical system, are provided.

Inventors:

KAI HIDEKI

Application Number:

PCT/JP2018/024994

Publication Date:

January 10, 2019

Filing Date:

July 02, 2018

Export Citation:

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Assignee:

PANASONIC IP MAN CO LTD (JP)

International Classes:

G02B13/00

Domestic Patent References:

WO2013118466A1

2013-08-15

Foreign References:

JP2014102358A	2014-06-05
JP2012181508A	2012-09-20
JP2015191237A	2015-11-02
JP2015043104A	2015-03-05

Other References: