Title:
IRIS CAMERA LENS
Document Type and Number:
WIPO Patent Application WO/2018/209891
Kind Code:
A1
Abstract:
An iris camera lens, comprising a first lens (L1) and a second lens (L2) which are arranged along the optical axis from the object side to the image side in sequence. The first lens (L1) has the positive focal power, and the object side surface (S1) thereof is a convex surface, and the image side surface (S2) thereof is a concave surface. The second lens (L2) has the negative focal power. The spacing distance T12 between the first lens (L1) and the second lens (L2) on the optical axis, and the distance TTL between the object side surface (S1) of the first lens (L1) and the imaging surface (S7) of the iris camera lens on the optical axis meet the following condition: T12/TTL > 0. 32.
Inventors:
HUANG LIN (CN)
Application Number:
PCT/CN2017/107328
Publication Date:
November 22, 2018
Filing Date:
October 23, 2017
Export Citation:
Assignee:
ZHEJIANG SUNNY OPTICAL CO LTD (CN)
International Classes:
G02B13/00; G03B11/00; G06V10/147
Foreign References:
| CN106932886A | 2017-07-07 | |||
| CN105866923A | 2016-08-17 | |||
| CN101813819A | 2010-08-25 | |||
| US20090161069A1 | 2009-06-25 | |||
| US20150085383A1 | 2015-03-26 | |||
| CN105700133A | 2016-06-22 | |||
| CN102033292A | 2011-04-27 |
Attorney, Agent or Firm:
INSIGHT INTELLECTUAL PROPERTY LIMITED (CN)
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