Title:
ZOOM OPTICAL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/207888
Kind Code:
A1
Abstract:
Disclosed is a zoom optical system, belonging to the technical field of optics. The zoom optical system sequentially comprises, from an object side to an image side, along an optical path: a first lens group (10), the first lens group (10) being fixed in position and having positive focal power; a second lens group (20), the second lens group (20) being adjustable in the direction of an optical axis and having negative focal power; and a third lens group (30), the third lens group (30) being fixed in position and having positive focal power, wherein at least the second lens (20) and/or the third lens (30) comprise(s) a super lens, and the phase of the super lens at least satisfies any one of the following formulas: r is the radius direction coordinate of the super lens, λ is the working wavelength, φ 0 is any constant phase, a i, a ij and b ij are coefficients, (x, y) is the mirror surface coordinate of the super lens, and f is the focal length of a single super lens. The optical system facilitates the miniaturization and lightweighting of a continuous zoom system.
Inventors:
HAO CHENGLONG (CN)
TAN FENGZE (CN)
ZHU RUI (CN)
ZHU JIAN (CN)
TAN FENGZE (CN)
ZHU RUI (CN)
ZHU JIAN (CN)
Application Number:
PCT/CN2023/090233
Publication Date:
November 02, 2023
Filing Date:
April 24, 2023
Export Citation:
Assignee:
SHENZHEN METALENX TECH CO LTD (CN)
International Classes:
G02B15/14; G02B3/00
Foreign References:
| CN114690387A | 2022-07-01 | |||
| CN114217428A | 2022-03-22 | |||
| US20100165134A1 | 2010-07-01 |
Other References:
ZHENG GUOXING, WU WEIBIAO, LI ZILE, ZHANG SHUANG, MEHMOOD MUHAMMAD QASIM, HE PING’AN, LI SONG: "Dual field-of-view step-zoom metalens", OPTICS LETTERS, OPTICAL SOCIETY OF AMERICA, US, vol. 42, no. 7, 1 April 2017 (2017-04-01), US , pages 1261 - 1264, XP009549999, ISSN: 0146-9592, DOI: 10.1364/OL.42.001261
CUI YUAN, ZHENG GUOXING, CHEN MING, ZHANG YILUN, YANG YAN, TAO JIN, HE TAOTAO, LI ZILE: "Reconfigurable continuous-zoom metalens in visible band", CHINESE OPTICS LETTERS, CHINESE OPTICAL SOCIETY, CN, vol. 17, no. 11, 1 November 2019 (2019-11-01), CN , pages 111603 - 111603-6, XP009549992, ISSN: 1671-7694, DOI: 10.3788/COL201917.111603
CUI YUAN, ZHENG GUOXING, CHEN MING, ZHANG YILUN, YANG YAN, TAO JIN, HE TAOTAO, LI ZILE: "Reconfigurable continuous-zoom metalens in visible band", CHINESE OPTICS LETTERS, CHINESE OPTICAL SOCIETY, CN, vol. 17, no. 11, 1 November 2019 (2019-11-01), CN , pages 111603 - 111603-6, XP009549992, ISSN: 1671-7694, DOI: 10.3788/COL201917.111603
Attorney, Agent or Firm:
FAIRSKY LAW OFFICE (CN)
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