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Stray radiation is an important indicator for the infrared optical systems involved in the process of designing and testing. In order to measure the internal stray radiation in infrared imaging systems, a method based on radiometric calibration is proposed, and its rationality is verified by theoretical analysis and experiments. Firstly, the model of radiometric calibration without lens, in other words the detector for absorbing the radiation flux directly from the calibration reference source, is developed to show the influence of internal factors of the detector on the system output. Then it is compared with the results of calibration of the infrared system with a lens to obtain the system output results from the optical system, namely the internal stray radiation caused by the optical system. Finally, experiments are performed to prove the correctness of the theories proposed in this paper. The proposed method has some advantages, such as simple operation, low demand for the experimental conditions, and the capability of measuring the internal stray radiation accurately. It can be used to guide the stray radiation suppression in the process of infrared system designing, to verify the stray radiation analysis results, and to test whether the stray radiation level meets the practical requirements.
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Keywords:
- cooled infrared imaging system /
- detector array /
- internal stray radiation /
- radiometric calibration
[1] Hunt G H, Shelton G B 1977 SPIE. 107 146
[2] Pravdivtsev A V, Akram M N 2013 Infrared Physics & Technology 60 306
[3] Liu Y, An X Q, Wang Q 2013 Applied Optics 52 4
[4] Xia X L, Shuai Y, Tan H P 2005 Journal of Quantitative Spectroscopy & Radiative Transfer 101
[5] Peng Z Y, Wang X J, Lu J 2013 Acta Phys. Sin. 62 230702 (in Chinese) [彭志勇, 王向军, 卢进 2013 62 230702]
[6] Li Y, Liu J F 2013 Acta Opt. Sin. 33 0928002 (in Chinese) [李岩, 刘剑峰 2013 光学学报 33 0928002]
[7] Howard J W, Abel I R 1982 Applied Optics 21 3393
[8] Akram M N 2010 Applied Optics 49 964
[9] Akram M N 2010 Applied Optics 49 1185
[10] Liu Y, An X Q 2012 Acta Optia Sinica 32 0222007 (in Chinese) [刘洋, 安晓强 2012 光学学报 32 0222007]
[11] Fest E C 2013 Stray Light Analysis and Control (SPIE)
[12] Breault R P 1977 SPIE. 107 1
[13] Liepmann T W 2009 SPIE. 7439 743913
[14] Frank Grochocki, John Fleming 2010 SPIE 7794 77940W-1
[15] Birkl R, Lange G, Manhart S, Maurer R 1988 SPIE 967 78
[16] Birkl R, Lange G, Boeswetter C, Lamb G M 1994 SPIE 2260 128
[17] Lightsey P A, Wei Z Y 2012 SPIE 8442 84423B-1
[18] Fan M, Chen L F, Li S S, Tao J H, Su L, Zou M M 2014 Chin. Phys. B 23 104203
[19] Siegel R, Howell J R 1972 Thermal Radiation Heat Transfer (Academic)
[20] Wolfe W L 1998 Introduction to Radiometry (SPIE)
[21] Palmer J M, Grant B G 2010 The Art of Radiometry (SPIE)
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[1] Hunt G H, Shelton G B 1977 SPIE. 107 146
[2] Pravdivtsev A V, Akram M N 2013 Infrared Physics & Technology 60 306
[3] Liu Y, An X Q, Wang Q 2013 Applied Optics 52 4
[4] Xia X L, Shuai Y, Tan H P 2005 Journal of Quantitative Spectroscopy & Radiative Transfer 101
[5] Peng Z Y, Wang X J, Lu J 2013 Acta Phys. Sin. 62 230702 (in Chinese) [彭志勇, 王向军, 卢进 2013 62 230702]
[6] Li Y, Liu J F 2013 Acta Opt. Sin. 33 0928002 (in Chinese) [李岩, 刘剑峰 2013 光学学报 33 0928002]
[7] Howard J W, Abel I R 1982 Applied Optics 21 3393
[8] Akram M N 2010 Applied Optics 49 964
[9] Akram M N 2010 Applied Optics 49 1185
[10] Liu Y, An X Q 2012 Acta Optia Sinica 32 0222007 (in Chinese) [刘洋, 安晓强 2012 光学学报 32 0222007]
[11] Fest E C 2013 Stray Light Analysis and Control (SPIE)
[12] Breault R P 1977 SPIE. 107 1
[13] Liepmann T W 2009 SPIE. 7439 743913
[14] Frank Grochocki, John Fleming 2010 SPIE 7794 77940W-1
[15] Birkl R, Lange G, Manhart S, Maurer R 1988 SPIE 967 78
[16] Birkl R, Lange G, Boeswetter C, Lamb G M 1994 SPIE 2260 128
[17] Lightsey P A, Wei Z Y 2012 SPIE 8442 84423B-1
[18] Fan M, Chen L F, Li S S, Tao J H, Su L, Zou M M 2014 Chin. Phys. B 23 104203
[19] Siegel R, Howell J R 1972 Thermal Radiation Heat Transfer (Academic)
[20] Wolfe W L 1998 Introduction to Radiometry (SPIE)
[21] Palmer J M, Grant B G 2010 The Art of Radiometry (SPIE)
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