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1. (WO2018139160) ZOOM LENS AND IMAGING DEVICE

Pub. No.:    WO/2018/139160    International Application No.:    PCT/JP2017/046864
Publication Date: Fri Aug 03 01:59:59 CEST 2018 International Filing Date: Thu Dec 28 00:59:59 CET 2017
IPC: G02B 15/20
G02B 13/18
Applicants: SONY CORPORATION
ソニー株式会社
Inventors: KATOU, Kouji
加藤 浩司
NOSE, Hiromichi
能勢 弘道
Title: ZOOM LENS AND IMAGING DEVICE
Abstract:
This zoom lens is configured from a first lens group having a negative refractive power, a second lens group having a positive refractive power, a third lens group having a positive refractive power, a fourth lens group having a positive or negative refractive power, and a fifth lens group having a negative refractive power, in said order from the object side to the imaging surface side. The intervals between the lens groups change when zooming from a wide angle end to a telephoto end, and focusing is performed by moving the second lens group and the fourth lens group when a subject distance changes from infinite to proximal.