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Patent Searching and Data


Title:
IMAGING LENS
Document Type and Number:
WIPO Patent Application WO/2018/214396
Kind Code:
A1
Abstract:
An imaging lens, comprising, sequentially from an object side to an image side along an optical axis, a first lens (E1), a second lens (E2), a third lens (E3), a fourth lens (E4), and a fifth lens (E5). The first lens (E1) has a positive optical power and an object-side surface (S1) being a convex surface. The second lens (E2) has a negative optical power, and an object-side surface (S3) and an image-side surface (S4) both being concave surfaces. The third lens (E3) has a negative optical power. The fourth lens (E4) has a positive or negative optical power. The fifth lens (E5) has a positive or negative optical power, an object-side surface (S9) being a concave surface, and an image-side surface (S10) being a convex or planar surface. An air spacing T23 between the second lens (E2) and the third lens (E3) on the optical axis and an air spacing T34 between the third lens (E3) and the fourth lens (E4) on the optical axis meet the following condition: 1.0 ≤ T23/T34 < 2.0.

Inventors:
LV, Saifeng (No.66-68 Shunyu Road, YuyaoNingbo, Zhejiang 0, 315400, CN)
HU, Yabin (No.66-68 Shunyu Road, YuyaoNingbo, Zhejiang 0, 315400, CN)
WENREN, Jianke (No.66-68 Shunyu Road, YuyaoNingbo, Zhejiang 0, 315400, CN)
Application Number:
CN2017/107331
Publication Date:
November 29, 2018
Filing Date:
October 23, 2017
Export Citation:
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Assignee:
ZHEJIANG SUNNY OPTICAL CO.,LTD (No. 66-68 Shunyu Road, YuyaoNingbo, Zhejiang 0, 315400, CN)
International Classes:
G02B13/00
Foreign References:
CN202837653U2013-03-27
CN106990508A2017-07-28
CN105988186A2016-10-05
CN202217101U2012-05-09
US7864454B12011-01-04
US20110249346A12011-10-13
Attorney, Agent or Firm:
INSIGHT INTELLECTUAL PROPERTY LIMITED (19 A, Tower A InDo Building,No. 48A Zhichun Road, Haidian District, Beijing 8, 100098, CN)
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