| 长波红外两档变焦光学系统技术研究 |
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| 引用本文： | 秦齐,王兴. 长波红外两档变焦光学系统技术研究[J]. 长春理工大学学报(自然科学版), 2014, 0(1): 10-13 |
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| 作者姓名： | 秦齐 王兴 |
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| 作者单位： | 长春理工大学 光电工程学院,长春130022 |
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| 摘 要： | 介绍了红外两档变焦光学系统的变焦理论和二次成像理论。分析了将后固定组与二次成像组相结合结构形式的高斯光学理论。这种结构减少了一个组元，结构简单，并降低了体积重量和成本。最后根据上述理论，设计了基于长波致冷型探测器的两档变焦红外光学系统，可实现320mm/80mm两档变焦，工作波段7.7～9.5μm，F数为2，满足100%冷光阑效率。评价结果表明，该系统像质优良，满足实际需求，证实了该种方法也具有一定的可行性。
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| 关 键 词： | 两档变焦 初始结构 二次成像 红外光学系统 |
Research on Dual Field-of-views of Long-Wave Infrared System |
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| QIN Qi,WANG Xing. Research on Dual Field-of-views of Long-Wave Infrared System[J]. Journal of Changchun University of Science and Technology, 2014, 0(1): 10-13 |
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| Authors: | QIN Qi WANG Xing |
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| Affiliation: | (School of Optoelectronic Engineering, Changchun university of science and technology, Changchun 130022) |
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| Abstract: | The zoom lens theory and the re-imaging theory of dual field-of-view infrared system are presented. The theory of how to combined the back fixed groups and the re-imaging groups together is analyzed in Gaussian imaging principle. This structure has been reduced one groups, which can make it more compact, and with a lower volume, weight, and cost. Finally, a dual field-of-view infrared system used cooled detector is designed according to the above theory. This system can realize 320mm/ 80mm step zoom at the spectrum region 7.7~9.5μm, and obtain the cold shield efficiency of 100% . The F number is 2. The result shows that the design has a desirable image quality and can meet the requirements, and confirmed the method has a certain feasibility. |
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| Keywords: | dual field-of-view initial structure re-imaging optics infrared optical system |
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