Calibration of a high dynamic range, low light level visible source

Joe La Veigne; Todd Szarlan; Nate Radtke

doi:10.1117/12.884891

9 May 2011 Calibration of a high dynamic range, low light level visible source

Joe La Veigne, Todd Szarlan, Nate Radtke

Proceedings Volume 8014, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXII; 801415 (2011) https://doi.org/10.1117/12.884891
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

Usage of image intensified (I²) and other low light level devices have grown considerably over the past decade^1,2 As the systems have become more common place, the demand for production line test equipment has also grown. Accurate measurements of device response are a key part of determining acceptable system operation. However, differences in the spectral response of the unit under test (UUT) devices and the control detector; and the spectral distribution of the source, can lead to errors in test accuracy. These errors can be compounded by spectral variation in the source (or color temperature shifts) as a function of attenuation. These issues are often further confused by test system requirements that are not consistent with the desired parameter to be measured. For example, source requirements are often specified in illuminance while the UUT actually measures irradiance. We report on the calibration of a large dynamic range light source test system (> 7 orders), and discuss output compensation approaches for systems which control in a band different than the UUT being tested.

Citation Download Citation

Joe La Veigne, Todd Szarlan, and Nate Radtke "Calibration of a high dynamic range, low light level visible source", Proc. SPIE 8014, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXII, 801415 (9 May 2011); https://doi.org/10.1117/12.884891

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