Title:
IMAGING LENS, IMAGING DEVICE, AND PORTABLE EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2021/210265
Kind Code:
A1
Abstract:
Provided is an imaging lens having a small size and high optical performance. This imaging lens (OS) includes, in order from an object side to an image surface side: a first lens (L1) having a negative refractive power; a second lens (L2); a third lens (L3) having a positive refractive power; a fourth lens (L4) having a negative refractive power; a fifth lens (L5) having a positive refractive power; and a sixth lens (L6) having a negative refractive power, and satisfies the following conditions. At least one among the first lens (L1) to the sixth lens (L6) satisfies 10nd>1.76, wherein vd is an Abbe number with respect to a d line, and nd is a refractive index with respect to the d line.
Inventors:
YAMASHITA MASATOSHI (JP)
WATANABE HISAYOSHI (JP)
KANEDA SHOHEI (JP)
MIYAUCHI SHINSUKE (JP)
ONO KENJI (JP)
WATANABE HISAYOSHI (JP)
KANEDA SHOHEI (JP)
MIYAUCHI SHINSUKE (JP)
ONO KENJI (JP)
Application Number:
PCT/JP2021/006151
Publication Date:
October 21, 2021
Filing Date:
February 18, 2021
Export Citation:
Assignee:
OSAKA GAS CHEMICALS CO LTD (JP)
International Classes:
G02B13/00; G02B13/04; G02B13/18
Foreign References:
| US20200057268A1 | 2020-02-20 | |||
| JP6618217B1 | 2019-12-11 | |||
| CN110542989A | 2019-12-06 | |||
| US9715088B1 | 2017-07-25 |
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
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