Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ZOOM LENS AND IMAGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/139160
Kind Code:
A1
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.

Inventors:
KATOU, Kouji (1-7-1 Konan, Minato-k, Tokyo 75, 〒1080075, JP)
NOSE, Hiromichi (1-7-1 Konan, Minato-k, Tokyo 75, 〒1080075, JP)
Application Number:
JP2017/046864
Publication Date:
August 02, 2018
Filing Date:
December 27, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SONY CORPORATION (1-7-1, Konan Minato-k, Tokyo 75, 〒1080075, JP)
International Classes:
G02B15/20; G02B13/18
Foreign References:
JPH07151973A1995-06-16
JP2015203734A2015-11-16
JPH08190052A1996-07-23
Attorney, Agent or Firm:
TSUBASA PATENT PROFESSIONAL CORPORATION (3F Sawada Building, 15-9 Shinjuku 1-chome, Shinjuku-k, Tokyo 22, 〒1600022, JP)
Download PDF: