Title:
IMAGING LENS
Document Type and Number:
WIPO Patent Application WO/2017/086051
Kind Code:
A1
Abstract:
Provided is an imaging lens which has a wide total angle of view of at least 150 degrees, has high image quality, is small and low cost, and also maintains stable quality even in the severe environment of a vehicle-mounted camera or the like. The present invention comprises a meniscus-shaped first lens which has negative refractive power, and of which the convex surface faces the object side, a meniscus-shaped second lens which has negative refractive power, and of which the convex surface faces the object side, a meniscus-shaped third lens which has positive refractive power, and of which the concave surface faces the object side, an aperture diaphragm, a biconvex fourth lens which has positive refractive power, a biconcave fifth lens which has negative refractive power, and a biconvex sixth lens which has positive refractive power, arranged in order from the object side to the image surface side. The present invention as a whole is configured from 6 groups of 6 independent lenses, has a total angle of view of at least 150 degrees, and satisfies a prescribed conditional expression.
Inventors:
NAKAMURA AKIRA (JP)
ONODA YOSHITOMO (JP)
MINATO ATSUO (JP)
ONODA YOSHITOMO (JP)
MINATO ATSUO (JP)
Application Number:
PCT/JP2016/079993
Publication Date:
May 26, 2017
Filing Date:
October 07, 2016
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
G02B13/04; G02B13/18
Domestic Patent References:
| WO2016125613A1 | 2016-08-11 |
Foreign References:
| JP2007279632A | 2007-10-25 | |||
| JP2007164079A | 2007-06-28 | |||
| JP2013073164A | 2013-04-22 | |||
| US20150062720A1 | 2015-03-05 | |||
| JP2007249073A | 2007-09-27 | |||
| JP2004029282A | 2004-01-29 | |||
| JP2000292692A | 2000-10-20 |
Other References:
See also references of EP 3379317A4
Attorney, Agent or Firm:
IWATA, Masanobu et al. (JP)
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