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Patent Searching and Data


Title:
ZOOM LENS SYSTEM AND IMAGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/082723
Kind Code:
A1
Abstract:
This zoom lens system comprises, in order, from an object side toward an image side: a first lens group (G1) having a positive power; a second lens group (G2) having a negative power; a third lens group (G3) having a positive power; a fourth lens group (G4) having a negative power; a fifth lens group (G5) having a positive power; and a sixth lens group (G6) having a negative power. The spacing between each group changes when zooming from a wide angle end toward a telescopic end. The fifth lens group (G5) is composed of two or less lens elements, and has, on the object side, at least one lens element having a convex meniscus shape and facing a concave surface.

Inventors:
NAKAZAWA, Genki
Application Number:
JP2018/038404
Publication Date:
May 02, 2019
Filing Date:
October 16, 2018
Export Citation:
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Assignee:
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. (1-61, Shiromi 2-chome Chuo-ku, Osaka-sh, Osaka 07, 〒5406207, JP)
International Classes:
G02B15/20; G02B13/18; G03B5/00
Foreign References:
JP2016065912A2016-04-28
JP2016161887A2016-09-05
JP2017142349A2017-08-17
JP2015135392A2015-07-27
JP2012155087A2012-08-16
JP2016173438A2016-09-29
Attorney, Agent or Firm:
NII, Hiromori et al. (6F Tanaka Ito Pia Shin-Osaka Bldg., 3-10, Nishi Nakajima 5-chome, Yodogawa-ku, Osaka-cit, Osaka 11, 〒5320011, JP)
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