Design of near-space infrared dual-channel multi-spectral camera

Hui Gong; Lei Chen; Minlong Lian; Zhichen Shi; Kang Li; Shaofan Tang

doi:10.1117/12.2655699

23 January 2023 Design of near-space infrared dual-channel multi-spectral camera

Hui Gong, Lei Chen, Minlong Lian, Zhichen Shi, Kang Li, Shaofan Tang

Proceedings Volume 12557, AOPC 2022: Optical Sensing, Imaging, and Display Technology; 125572R (2023) https://doi.org/10.1117/12.2655699
Event: Applied Optics and Photonics China 2022 (AOPC2022), 2022, Beijing, China

Abstract

The infrared multi-spectral camera on near-space vehicle had the characteristics of high spatial resolution, high time resolution. A new dual-channel infrared multi-spectral remote sensing camera was developed. It included a middle wave (MW) channel (3.7μm~4.8μm) and a long wave (LW) channel (8μμm~12.5μm). The optical system adopted a refract system, a dichroic beam-splitter was utilized to separate LM form MW. The MW and LW channel all had five spectral bands , and filter wheel assemblies were used to split the in-coming MW and LW radiant flux into 5 spectral bands. The optical system aperture was 45mm, and the focal of the two infrared channels were 62.5m. The full field modulation transfer function (MTF) of MW channel was over 0.67, and the MTF of LW was over 0.329. The focal of MW and LW channel had 640×512 pixels, and the pixel size was 25μm. Because of the high integrated design, the total weight of the camera was 18.5kg. The camera would be used to monitor the fire and the forest fires and marine pollution on a airship.

Citation Download Citation

Hui Gong, Lei Chen, Minlong Lian, Zhichen Shi, Kang Li, and Shaofan Tang "Design of near-space infrared dual-channel multi-spectral camera", Proc. SPIE 12557, AOPC 2022: Optical Sensing, Imaging, and Display Technology, 125572R (23 January 2023); https://doi.org/10.1117/12.2655699

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available