Endoscope imaging system and endoscope equipment

By designing the fixed structures of the first and second lens groups in the endoscopic imaging system, the image clarity can be adjusted only by moving the second lens group, solving the complex adjustment problem in the prior art and achieving a lighter operating process.

CN119667931AActive Publication Date: 2025-03-21QINGDAO HISENSE INTELLIGENT MEDICAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202411608568.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-11
Publication Date
2025-03-21
Estimated Expiration
2044-11-11

AI Technical Summary

Technical Problem

When matching different endoscopes, existing endoscope imaging systems need to adjust the entire optical system inside the adapter, resulting in the process of adjusting clarity and inconvenient.

Method used

An endoscopic imaging system is designed, wherein the lens subsystem includes a first lens group and a second lens group in sequence from the object side to the image side along the optical axis, the second lens group is fixed in the endoscopic barrel, and the first lens group is fixed in the fixed lens barrel. Adjust the field angle and image clarity by moving the second lens group in the endoscope, avoiding adjusting the entire optical system.

Benefits of technology

It is realized that the image clarity can be adjusted in the endoscopic imaging system by moving only one lens group, simplifying the adjustment process and improving the lightness and efficiency of the operation.

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Abstract

The invention discloses an endoscope imaging system and endoscope equipment. The endoscope imaging system sequentially comprises first window glass, a diaphragm, a lens subsystem, second window glass and a detection imaging element from an object side to an image side along an optical axis, the first window glass and the second window glass are used for protecting lenses in the lens subsystem; the detection imaging element is used for displaying an image formed by the lens subsystem; the lens subsystem sequentially comprises a first lens group and a second lens group from the object side to the image side along the optical axis; the second lens group is fixedly arranged in the inner lens cone, the inner lens cone can move back and forth in the fixed lens cone, and the first lens group is fixedly arranged in the fixed lens cone and located on the object side of the inner lens cone; the first lens group sequentially comprises a first lens with positive focal power, a first sub-lens group with negative focal power, a second sub-lens group with positive focal power and a third sub-lens group with negative focal power from the object side to the image side along the optical axis; the second lens group is a lens group with positive focal power.
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