中波/长波双色红外光学系统材料选择:中波/长波双色红外光学系统材料选择
Materials Choose for Mid-Wave/Long-Wave Dual-Waveband Infrared Optics
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作 者:付强[1,2] 张新[1]
Fu Qiang,Zhang Xin(1.Key Laboratory of Optical System Advanced Manufacturing Technology, Chinese Academy of Sciences, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, China; 2.University of Chinese Academy of Sciences, Beijing 100049, China)
机构地区:[1]中国科学院长春光学精密机械与物理研究所光学系统先进制造技术中国科学院重点实验室,吉林长春130033 [2]中国科学院大学,北京100049
出 处:《光学学报》 EI CSCD 2015年第2期 73-79页,共7页
Acta Optica Sinica
摘 要:为成功应用新一代红外探测器,须要设计出能够同时具备双/多色成像能力的光学系统。提出了针对双色红外光学系统材料选择的计算评价方法,其评价项包括绝对光焦度和设计谱段内多个波长下的平均离焦两项。利用该方法对可选的材料组合进行评价,可以快速高效地获得最佳材料组合和元件初始光焦度分配。通过分析评价,适用于中波/长波双色红外光学系统最佳的两片透镜材料组合方式为Zn S/IG2,最佳的三片透镜材料组合方式为Ge/Zn S/GASIR1。通过对组合的详细设计分析验证了该评价方法的有效性。最佳组合可作为透镜组元,为实际光学系统设计提供良好起点。
To apply the new generation infrared detector successfully, it is necessary to design dual-band/ multi-band optical imaging systems. A calculation evaluation method to select materials for dual-band infrared optical imaging systems is proposed. The criterion includes the absolute lens power and the average defocus evaluated at a number of wavelengths in the designing radiation waveband. Evaluation of all potential combinations of materials by using this method, the optimal combination of materials and the initial focal power distribution for optical components can be obtained rapidly and efficiently. Through analysis and evaluation, ZnS/IG2 is the best two-lens material combination mode for mid-wave/long-wave dual-waveband infrared optics. Ge/ZnS/GASIR1 is the best three-lens material combination mode for mid-wave/long-wave dual-waveband infrared optics. As it is proved that the method is valued through designing and analyzing the combinations detailed. These best combinations can be used as lens elements to provide a good starting point for designing actual optical systems.
关键词:光学设计 红外光学系统 双色红外探测器 薄透镜理论
optical design ; infrared optical system ; dual-waveband infrared detector ; thin lens theory ;