Passive optical athermalization of a medical thermal imager optical system
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Дата
2025-05-13
Автори
Науковий керівник
Назва журналу
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Назва тому
Видавець
КПІ ім. Ігоря Сікорського
Анотація
Modern medical thermal imagers require precise, stable optical performance to detect subtle temperature variations critical for diagnosing inflammation, monitoring blood flow, and identifying early disease indicators. Maintaining high spatial and thermal resolution under varying operating temperatures presents significant design challenges, particularly due to the temperature sensitivity of optical materials and mechanical components. This article explores the principles and implementation of passive optical athermalization as an effective solution for medical thermal imagers. Unlike active systems that rely on mechanical adjustments, passive athermalization strategically combines optical materials with complementary thermo-optic and thermal expansion properties to maintain focus and image quality without external power or complex controls. Key aspects discussed include the selection of infrared materials such as germanium and chalcogenide glasses, design methodologies for multi-element optical systems, and optimization techniques using temperature-dependent modeling. Experimental results confirm that passive athermalized systems can maintain consistent focal position and image quality across clinical temperature ranges, ensuring reliable and accurate thermal diagnostics. This approach offers a robust, low-maintenance solution tailored for the stringent demands of medical environments.
Опис
Ключові слова
passive optical athermalization, medical thermal imager, image quality, temperature stability, lens design optimization
Бібліографічний опис
Muraviov, O. V. Passive optical athermalization of a medical thermal imager optical system / O. V. Muraviov, I. O. Dovbysh // XXІV Міжнародна науково-технічна конференція "Приладобудування: стан і перспективи", 13-14 травня 2025 р., м. Київ, Україна : збірник матеріалів конференції. – Київ : КПІ ім. Ігоря Сікорського, 2025. – С. 301-304. – Бібліогр. 7 назв.