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Title:
LOW REFRACTIVE POWER ZOOM LENS AND OPTICAL SYSTEM THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/283810
Kind Code:
A1
Abstract:
A super-telephoto zoom lens comprising, from an object side to an image side along a first optical axis (OA1) and a second optical axis (OA2), a first lens group (G1) having a positive refractive power, a second lens group (G2) having a positive refractive power, a third lens group (G3) having a negative refractive power, a fourth lens group (G4) having a negative refractive power, and a fifth lens group (G5) having a positive refractive power, wherein, when zooming, at least the third lens group (G3) and the fourth lens group (G4) is moved along the second optical axis (OA2) while the first lens group (G1) is fixed along the first optical axis (OA1), and the first lens group (G1) comprises a reflective optical element (L2) for bending an optical path from the object side by 90 degrees to the image side.

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Inventors:
NIHEI YASUHIDE (JP)
MATSUI TAKUMI (JP)
Application Number:
PCT/CN2021/106132
Publication Date:
January 19, 2023
Filing Date:
July 14, 2021
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G02B9/60; G02B15/16
Foreign References:
CN101276045A2008-10-01
CN101354479A2009-01-28
CN103649808A2014-03-19
CN112925088A2021-06-08
JP2008225314A2008-09-25
JP2001091829A2001-04-06
JP2000137165A2000-05-16
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