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.
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Inventors:
KATOU KOUJI (JP)
NOSE HIROMICHI (JP)
NOSE HIROMICHI (JP)
Application Number:
PCT/JP2017/046864
Publication Date:
August 02, 2018
Filing Date:
December 27, 2017
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
G02B15/20; G02B13/18
Foreign References:
| JPH07151973A | 1995-06-16 | |||
| JP2015203734A | 2015-11-16 | |||
| JPH08190052A | 1996-07-23 |
Attorney, Agent or Firm:
TSUBASA PATENT PROFESSIONAL CORPORATION (JP)
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