Dual-gaussian dual-pathway structure

By employing a dual-Gauss dual-optical-path structure and utilizing a combination of thick and thin lenses, aberrations, spherical aberrations, chromatic aberrations, and field curvature are effectively corrected, achieving high-quality imaging, especially under large field-of-view conditions.

CN116661141BActive Publication Date: 2026-07-10VEGETABLE RES INST GUANGDONG ACAD OF AGRI SERVICES
6 Cites 0 Cited by

Patent Information

Application Number
CN202310785634.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-06-29
Publication Date
2026-07-10
Estimated Expiration
2043-06-29

AI Technical Summary

Technical Problem

Existing dual-path structures are inadequate in eliminating aberrations, spherical aberrations, chromatic aberrations, field curvature, and astigmatism correction, especially in cases with large field of view, resulting in significant imaging distortion.

Method used

It adopts a dual-Gauss dual-optical-path structure, corrects field curvature by changing the structure of the thick lens, corrects spherical aberration by using the curvature of the thin lens, corrects astigmatism by changing the distance between the thick lenses, and corrects chromatic aberration by using a cemented lens, ensuring that the distortion of the transmitted and reflected light paths in the entire field of view is less than 2%.

Benefits of technology

The system achieves a root mean square dot plot radius of less than 8 micrometers across the entire field of view for both transmitted and reflected light paths, with imaging distortion below 2%, significantly improving the imaging quality of the light path.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The application belongs to the field of optics, and discloses a double-Gaussian double-optical-path structure, which comprises an incident light path, a transmission light path and a reflection light path, characterized in that the transmission light path comprises a first single lens, a first double-cemented lens, a second double-cemented lens and a second single lens arranged in sequence; the reflection light path comprises a mirror, a third single lens, a third double-cemented lens, a fourth double-cemented lens and a fourth single lens arranged in sequence; the root mean square point column diagram radius value of the transmission light path is less than 8 microns in the full field of view and the full wave band, and the imaging distortion is less than 2%; the root mean square point column diagram radius value of the reflection light path is less than 8 microns in the full field of view and the full wave band, and the imaging distortion is less than 2%.
Need to check novelty before this filing date? Find Prior Art