Zoom Optical System for Thermal Camera in Optical Range 8-14 µm

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https://doi.org/10.52651/sam.a.2023.2.21-27

Autor: Chi Toan Dang, Vratislav Kreheľ, Michal Mozoľa

In: Science & Military

ISSN: 2453-7632

Ročník: 18

Číslo: 2

Strany: 21 - 27

Rok vydania: 2023

Vydavateľ: Akadémia ozbrojených síl generála Milana Rastislava Štefánika, Liptovský Mikuláš

Abstrakt: Continuous infrared zoom systems with image quality and image stabilisation maintained throughout the workflow are increasingly being used. A long-wave infrared continuous zoom optical system with a 6x zoom ratio operating with an uncooled detector was designed. The optical system has a focal length from 37,5 mm to 225 mm, and the F/# is 1,5. The system includes 7 lenses with 3 even aspheres. The results show that the MTF function is very close to the diffraction limit curve over the entire focal range, proving that the system meets the specifications.

Kľúčové slová: Zoom optical system; Thermal infrared; Zoom ratio.

Citácia:
DANG, Chi Toan; KREHEĽ, Vratislav a MOZOĽA, Michal. Zoom Optical System for Thermal Camera in Optical Range 8-14 µm. In: Science & Military [online]. Liptovský Mikuláš: Akadémia ozbrojených síl generála Milana Rastislava Štefánika, 2023, 18 (2), s. 21-27. ISSN: 1336-8885 (print). ISSN: 2453-7632 (online). Dostupné na internete: https://doi.org/10.52651/sam.a.2023.2.21-27