Title:
PRIME LENS
Document Type and Number:
WIPO Patent Application WO/2023/160277
Kind Code:
A1
Abstract:
A prime lens, comprising a first lens (101), a second lens (102), a third lens (103), a fourth lens (104), a fifth lens (105), a sixth lens (106), a seventh lens (107), an eighth lens (108) and a ninth lens (109), which are sequentially arranged from an object side to an image side along an optical axis. The first lens (101), the second lens (102), the sixth lens (106) and the eighth lens (108) are all lenses with negative focal power, and the fourth lens (104), the fifth lens (105), the seventh lens (107) and the ninth lens (109) are all lenses with positive focal power. The focal power of the prime lens is Φ, the focal power of the first lens (101) is Φ1, the focal power of the second lens (102) is Φ2, the focal power of the third lens (103) is Φ3, the focal power of the fourth lens (104) is Φ4, the focal power of the fifth lens (105) is Φ5, the focal power of the sixth lens (106) is Φ6, the focal power of the seventh lens (107) is Φ7, the focal power of the eighth lens (108) is Φ8, and the focal power of the ninth lens (109) is Φ9, wherein -0.554 <Φ1/Φ < -0.391; -0.675 <Φ2/Φ < 0.355; -0.176 <Φ3/Φ < 0.362; 0.366 <Φ4/Φ < 0.61; 0.208 <Φ5/Φ < 0.464; -0.535 <Φ6/Φ < -0.209; 0.288 <Φ7/Φ < 0.55; -0.476 <Φ8/Φ < -0.18; and 0.34 <Φ9/Φ < 0.532.
Inventors:
JING JIAO (CN)
ZHANG LEI (CN)
LI ZEMIN (CN)
HE JIANWEI (CN)
ZHANG LEI (CN)
LI ZEMIN (CN)
HE JIANWEI (CN)
Application Number:
PCT/CN2023/071190
Publication Date:
August 31, 2023
Filing Date:
January 09, 2023
Export Citation:
Assignee:
DONGGUAN YUTONG OPTICAL TECH CO LTD (CN)
International Classes:
G02B9/64; G02B13/18
Foreign References:
| CN113189747A | 2021-07-30 | |||
| CN111025602A | 2020-04-17 | |||
| CN111142236A | 2020-05-12 | |||
| CN112130289A | 2020-12-25 | |||
| CN113568146A | 2021-10-29 | |||
| CN113917668A | 2022-01-11 | |||
| CN114063258A | 2022-02-18 | |||
| CN215264201U | 2021-12-21 | |||
| TW202013002A | 2020-04-01 | |||
| US3736049A | 1973-05-29 | |||
| US4291951A | 1981-09-29 |
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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