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Optical athermalization in the visible waveband using the 1+∑ method

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Abstract

In this paper, the 1+ method, which is based on the double-lens equivalent model, is proposed to achieve optical athermalization in the visible waveband. The glass in the system was replaced by calculating and analyzing the synthetic weights of the thermal power and chromatic power. A complex aerial camera with long focal length was designed over a temperature difference of 100°C. The results demonstrated that the designed system could maintain good image quality and stable optical performance under large temperature differences.

© 2019 Optical Society of America

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