Title:
IRIS LENS
Document Type and Number:
WIPO Patent Application WO/2018/196268
Kind Code:
A1
Abstract:
An iris lens. The iris lens comprises, along an optical axis, a first lens (L2) and at least one subsequent lens in the sequence from the object side to the image side. Among the at least one subsequent lens, the object side surface (S7) of the lens, which is closest to the image side and has a focal power, is concave. The iris lens further comprises a color filter (L1), the color filter being provided between the object side and the lens which is closest to the image side and has a focal power, the band-pass wave range of the color filter being from 700 nm to 900 nm.
Inventors:
HUANG LIN (CN)
Application Number:
PCT/CN2017/102632
Publication Date:
November 01, 2018
Filing Date:
September 21, 2017
Export Citation:
Assignee:
ZHEJIANG SUNNY OPTICAL CO LTD (CN)
International Classes:
G06K9/00; G02B13/18
Foreign References:
| CN106896482A | 2017-06-27 | |||
| KR20090078053A | 2009-07-17 | |||
| US8098441B2 | 2012-01-17 | |||
| US20120044575A1 | 2012-02-23 | |||
| JPH09101451A | 1997-04-15 | |||
| CN102436573A | 2012-05-02 |
Attorney, Agent or Firm:
INSIGHT INTELLECTUAL PROPERTY LIMITED (CN)
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