Title:
撮像光学レンズ
Document Type and Number:
Japanese Patent JP6813934
Kind Code:
B2
Abstract:
The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: an aperture; a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens having a negative refractive power; a fifth lens having a positive refractive power; a sixth lens having a negative refractive power; and a seventh lens having a negative refractive power. The camera optical lens satisfies following conditions: −2.50≤(R5+R6)/(R5−R6)≤−1.00; and −7.00≤f2/f≤−3.50, where f denotes a focal length of the camera optical lens; f2 denotes a focal length of the second lens; R5 denotes a curvature radius of an object side surface of the third lens; and R6 denotes a curvature radius of an image side surface of the third lens.
More Like This:
| WO/2008/142808 | IMAGING LENS |
| JPH03200112 | OPTICAL SCANNER |
| WO/1996/035137 | PROCESS FOR CORRECTING WAVE FRONT DEFORMATIONS |
Inventors:
Chen Akira
Application Number:
JP2019200366A
Publication Date:
January 13, 2021
Filing Date:
November 04, 2019
Export Citation:
Assignee:
AC Optics Solutions PTT Limited
International Classes:
G02B13/00; G02B13/18
Domestic Patent References:
| JP2018072743A |
Foreign References:
| TW1629527B | ||||
| US20130235473 | ||||
| US20160238820 | ||||
| CN107783261A |
Attorney, Agent or Firm:
Seiji Nishiuchi