Coaxial four-reflection optical system for visible light long-wave infrared common-aperture imaging
US12352624B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2023 |
| Grant date | Jul 8, 2025 |
| Priority date | — |
| Expiry date | Dec 12, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2003/2826
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present disclosure relates to a coaxial four-reflection optical system with visible light long-wave infrared common-aperture imaging, and belongs to the technical field of optical systems. The technical problems that the axial length compactness and the imaging quality of the visible light/infrared composite imaging system in the existing technology need to be improved are solved. The optical system of the present disclosure includes a main reflecting mirror, a first transmitting mirror, a third reflecting mirror, a fourth reflecting mirror, a second transmitting mirror, a third transmitting mirror and a fourth transmitting mirror. The optical system has a visible light panchromatic imaging function, a visible light multispectral imaging function and a long-wave infrared imaging function, which lowers the requirement of a space remote sensor for ground illumination conditions, realizes all-time space optical remote sensing reconnaissance and dynamic monitoring, and greatly improves the functional density and cost performance of a space optical load. The optical system has a compact structure, low distortion and good stray light inhibition, and is convenient to process, assemble…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.