A simple device for measuring the spectral transmittance of lens used in InGaAs image intensifier apparatus

Xiaofeng Bai; Hui Guo; Lei Yin; Yingping He; Zhipeng Hou; Zhuang Miao; Lei Yan

doi:10.1117/12.2068569

18 September 2014 A simple device for measuring the spectral transmittance of lens used in InGaAs image intensifier apparatus

Xiaofeng Bai, Hui Guo, Lei Yin, Yingping He, Zhipeng Hou, Zhuang Miao, Lei Yan

Author Affiliations +

Proceedings Volume 9282, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 92821O (2014) https://doi.org/10.1117/12.2068569
Event: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2014), 2014, Harbin, China

Abstract

In this article, in order to accurately measure the spectral transmittance of imaging lens used in InGaAs imaging apparatus, a simple device, which spectrum ranges from 400 nanometers to 2000 nanometers, based on double grating monochromator and self-collimating has been founded by using stable shortwave infrared radiant source, accurate double grating monochromator and telescope, stable silicon detector and cooled HgCdTe infrared detector. An imaging lens whose spectral transmittance has been known is measured on it. Comparing the test results to known data provided by manufacture, it is shown that the testing device founded in this article is competent to measure spectral transmittance of shortwave infrared imaging lens and which max relative deviation is no more than ±2.5%. It is worthwhile for selecting InGaAs image intensifier assembly and evaluating the quality of shortwave infrared imaging lens.

Citation Download Citation

Xiaofeng Bai, Hui Guo, Lei Yin, Yingping He, Zhipeng Hou, Zhuang Miao, and Lei Yan "A simple device for measuring the spectral transmittance of lens used in InGaAs image intensifier apparatus", Proc. SPIE 9282, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 92821O (18 September 2014); https://doi.org/10.1117/12.2068569

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