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Title:
OPTICAL IMAGING LENS AND IMAGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/186587
Kind Code:
A1
Abstract:
An optical imaging lens and an imaging device, relating to the technical field of optical lenses. An optical imaging lens (100) sequentially, from an object side to an imaging side along an optical axis, comprises: a first lens (L1) having a positive optical power, and an imaging side surface (S4) thereof being concave; a second lens (L2) having a negative optical power; and a third lens (L3) having a negative optical power; the optical imaging lens (100) satisfies conditional expressions: (dn/dt)1<-5.506×10-6/°C; (dn/dt)2<2.97×10-6/°C; (dn/dt)3<-1.22×10-4/°C, wherein (dn/dt)1 indicates a refractive index temperature coefficient of the first lens (L1) within a range of 0-60°C; (dn/dt)2 indicates a refractive index temperature coefficient of the second lens (L2) within a range of 0-60°C; and (dn/dt)3 indicates a refractive index temperature coefficient of the third lens (L3) within a range of 0-60°C. According to the optical imaging lens (100), by reasonably combining lens shapes and the focal power combination among the lenses, changes between dn/dt lenses are offset from each other, without the need for automatic focus.

Inventors:
WANG YILONG (CN)
ZENG HAOJIE (CN)
LIU XUMING (CN)
Application Number:
PCT/CN2019/083135
Publication Date:
September 24, 2020
Filing Date:
April 18, 2019
Export Citation:
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Assignee:
JIANGXI LIANYI OPTICS CO LTD (CN)
International Classes:
G02B9/12; G02B7/02; G02B11/06; G03B30/00
Foreign References:
CN106483624A2017-03-08
CN106483624A2017-03-08
CN104698571A2015-06-10
CN104698571A2015-06-10
CN105093492A2015-11-25
CN105093492A2015-11-25
US20130155528A12013-06-20
US20130155528A12013-06-20
CN103389569A2013-11-13
CN103389569A2013-11-13
CN105242379A2016-01-13
CN105242379A2016-01-13
US20130279025A12013-10-24
US20130279025A12013-10-24
CN107505689A2017-12-22
US20080174886A12008-07-24
Attorney, Agent or Firm:
SHENZHEN ZHIQUAN INTELLECTUAL PROPERTY OFFICE (CN)
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