TY - GEN
T1 - Impact of the light source expanded width on optical readout uncooled infrared system
AU - Jia, Qian
AU - Zhao, Yuejin
AU - Liu, Xiaohua
AU - Zhu, Weiwen
AU - Yin, Ganghua
AU - Dong, Liquan
PY - 2011
Y1 - 2011
N2 - This paper presents the impact of the light source expanded width on the detection sensitivity in an optical readout uncooled infrared system, which consists of a focal-plane array (FPA) containing bi-material cantilever pixels and reflectors. The relationship between the light source expanded width and the detection sensitivity is discussed based on four different curvatures of reflectors(R=8mm,11mm,25mm,∞). The analysis indicates that the detection sensitivity decreases with the light source expanded width's increment. For the flat reflectors , the detection sensitivity decreases to 90% when the light source expanded width is about 0.64mm. Compared with the flat ones, when the curvatures of reflectors are smaller, the requirement of light source expanded width becomes lower for the sensitivity. The experiment intuitively shows that the image quality by using the light source with 0.05mm size is better than the one with 1mm size, which confirms the first conclusion.
AB - This paper presents the impact of the light source expanded width on the detection sensitivity in an optical readout uncooled infrared system, which consists of a focal-plane array (FPA) containing bi-material cantilever pixels and reflectors. The relationship between the light source expanded width and the detection sensitivity is discussed based on four different curvatures of reflectors(R=8mm,11mm,25mm,∞). The analysis indicates that the detection sensitivity decreases with the light source expanded width's increment. For the flat reflectors , the detection sensitivity decreases to 90% when the light source expanded width is about 0.64mm. Compared with the flat ones, when the curvatures of reflectors are smaller, the requirement of light source expanded width becomes lower for the sensitivity. The experiment intuitively shows that the image quality by using the light source with 0.05mm size is better than the one with 1mm size, which confirms the first conclusion.
KW - detection sensitivity
KW - light source expanded width
KW - optical readout uncooled infrared system
UR - https://www.scopus.com/pages/publications/84862914492
U2 - 10.1117/12.904695
DO - 10.1117/12.904695
M3 - Conference contribution
AN - SCOPUS:84862914492
SN - 9780819488381
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - 2011 International Conference on Optical Instruments and Technology
T2 - 2011 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments
Y2 - 6 November 2011 through 9 November 2011
ER -