Design of a Dual-Band Compact Integrated Remote Sensing System for Visible Light and Long-Wave Infrared
| Autor: | Gangyi Zou, Ruichang Li, Liangjie Feng, Xuewu Fan |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Technology
Infrared QH301-705.5 QC1-999 Field of view remote sensing Optics Optical transfer function compact structure Transmittance General Materials Science Biology (General) Instrumentation QD1-999 visible light Fluid Flow and Transfer Processes Physics integrated system business.industry Process Chemistry and Technology Detector General Engineering Engineering (General). Civil engineering (General) Computer Science Applications Chemistry Millimeter Multi-band device TA1-2040 business long wave infrared Visible spectrum |
| Zdroj: | Applied Sciences Volume 11 Issue 20 Applied Sciences, Vol 11, Iss 9370, p 9370 (2021) |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app11209370 |
| Popis: | This paper presents a design of a dual-band integrated space telescope system for visible light and long-wave infrared. The system can simultaneously image the visible light band of 450–900 nm and the long-wave infrared band of 7700–10,500 nm. The dual-band integrated imaging system can freely switch the observation band to adapt to different scenes and environmental changes. The camera can also further expand its capabilities in the fields of multi-spectral observation and low-light observation by collocation with different detectors. This design is based on a coaxial reflection system, the two bands share the camera’s primary and secondary mirrors, and the separation of the two bands is achieved through a separate field of view design. After simulation, the average Modulation Transfer Function (MTF) value of the visible light band of the system at 50 lp/mm (line pairs per millimeter) reaches 0.45, and the average MTF value of the long-wave infrared band at 50 lp/mm reaches 0.36. In addition, tolerance analysis, ambient temperature analysis and transmittance analysis of the integrated system are carried out in this paper to further improve the integrated system scheme, and the feasibility of the system is further verified. |
| Databáze: | OpenAIRE |
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