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US Patent 11320631 Lens system and imaging device

Patent 11320631 was granted and assigned to Zhejiang Dahua Technology Co., Ltd. on May, 2022 by the United States Patent and Trademark Office.

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Is a
Patent
Patent

Patent attributes

Patent Applicant
Zhejiang Dahua Technology Co., Ltd.
Zhejiang Dahua Technology Co., Ltd.
Current Assignee
Zhejiang Dahua Technology Co., Ltd.
Zhejiang Dahua Technology Co., Ltd.
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
11320631
Date of Patent
May 3, 2022
Patent Application Number
16823521
Date Filed
March 19, 2020
Patent Citations Received
‌
US Patent 11543244 Retroreflector comprising fisheye lens
Patent Primary Examiner
‌
Alicia M Harrington
CPC Code
‌
G02B 15/143507
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G02B 9/12
‌
G02B 9/28
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G02B 13/006
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H04N 5/2254
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G02B 13/0035
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G02B 13/06
Patent abstract

The present disclosure is related to a lens systems. The lens system includes, in order from an object side to an image side, a first lens group G1 having negative refractive power, a second lens group G2 having positive refractive power, a third lens group G3 having positive refractive power, and the lens system satisfies the

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