Invention Grant
- Patent Title: Zoom lens group
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Application No.: US17541278Application Date: 2021-12-03
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Publication No.: US11885944B2Publication Date: 2024-01-30
- Inventor: Qi Wu , Fujian Dai , Liefeng Zhao
- Applicant: ZHEJIANG SUNNY OPTICS CO., LTD.
- Applicant Address: CN Zhejiang
- Assignee: ZHEJIANG SUNNY OPTICS CO., LTD.
- Current Assignee: ZHEJIANG SUNNY OPTICS CO., LTD.
- Current Assignee Address: CN Zhejiang
- Agent Yu Gang
- Priority: CN 2011416226.1 2020.12.07
- Main IPC: G02B15/14
- IPC: G02B15/14 ; G02B13/00 ; G02B13/02 ; G02B27/00

Abstract:
The disclosure provides a zoom lens group, sequentially including, from an object side to an image side along an optical axis: a first lens group with positive refractive power, including a first lens with refractive power and a second lens with refractive power, which are sequentially arranged along the optical axis; a second lens group with negative refractive power, including a third lens with negative refractive power and a fourth lens with refractive power, which are sequentially arranged along the optical axis; and a third lens group with positive refractive power, including a fifth lens with positive refractive power, a sixth lens with refractive power, a seventh lens with negative refractive power and an eighth lens with refractive power, which are sequentially arranged along the optical axis, Positions of the second lens group and the third lens group on the optical axis are adjustable.
Public/Granted literature
- US20220179183A1 Zoom Lens Group Public/Granted day:2022-06-09
Information query