变倍补偿组交叉移动变焦的大变倍比中波红外光学系统
By employing a cross-movement zoom method with a zoom compensation group in a mid-wave infrared optical system, fixing the distance between the zoom lens and the compensation lens, and combining suitable materials and aspherical lenses, a mid-wave infrared optical system with a high zoom ratio and compact structure is achieved, solving the problems of low zoom ratio and long zoom stroke in traditional systems.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUBEI JIUZHIYANG INFRARED SYST CO LTD
- Filing Date
- 2025-12-31
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional infrared continuous zoom systems have low zoom ratios and increased zoom travel, making it difficult to meet the development trend of lightweight and compact designs.
A large zoom ratio mid-wave infrared optical system with cross-movement zoom using zoom compensation group is used. The moving zoom is achieved by the relative movement of the two zoom groups and the two compensation groups along the optical axis. The distance between the zoom lens and the compensation lens is fixed, and aberration correction is performed using appropriate optical materials and aspherical lenses.
It achieves a high zoom ratio while shortening the zoom travel, reducing assembly and adjustment difficulty and system sensitivity, improving image quality, and has a compact structure to meet the requirements of lightweight and compact design.
Smart Images
Figure CN121578489B_ABST