RELAY LENS STRUCTURE OF 4K LAPAROSCOPE

WIPO Patent Application WO/2022/048080

A1

A relay lens structure of a 4K laparoscope consists of two completely symmetrical lens groups, and the two lens groups are sequentially glued into a whole in a light direction. Each lens group comprises a first lens (1), a second lens (2), a third lens (3) and a fourth lens (4). The end face of one side of the first lens (1) is of an even aspheric surface structure, the end face of the other side of the first lens (1) is a convex face, the end face of one side of the second lens (2) is a concave face, the end face of the other side of the second lens (2) is a plane, the end face of one side of the fourth lens (4) is a plane, the end face of the other side of the fourth lens (4) is of an aspheric surface structure, the convex face of the first lens (1) and the concave face of the second lens (2) are opposite and glued into a whole, the plane of the second lens (2) and the end face of one side of the third lens (3) are opposite and glued into a whole, and the end face of the other side of the third lens (3) and the plane of one side of the fourth lens (4) are opposite and glued into a whole.

WO/2013/131578	ENDOSCOPIC MULTIFUNCTION DEVICE FOR MEDICAL THERAPY
WO/2012/060586	SURGICAL ROBOT SYSTEM, AND A LAPAROSCOPE MANIPULATION METHOD AND A BODY-SENSING SURGICAL IMAGE PROCESSING DEVICE AND METHOD THEREFOR
WO/2007/130720	MEDICAL DEVICE POSITIONING SYSTEM

FANG ZHIGANG (CN)
ZHANG JIANZHONG (CN)

PCT/CN2020/140589

March 10, 2022

December 29, 2020

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EAGLESCOPE MEDICAL TECH CO LTD (CN)

A61B1/313; A61B1/00; A61B1/055; G02B23/24

CN111904372A	2020-11-10
CN105377113A	2016-03-02
US5684629A	1997-11-04
CN111358419A	2020-07-03
CN110955030A	2020-04-03
CN104142575A	2014-11-12

CHANGZHOU RIGHT NAVIGATION PATENT AGENCY CO, LTD. (CN)

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