27 April 1999 Intrapixel response test system for multispectral characterization
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Abstract
We report on the design of a system used to measure the multispectral intrapixel response of imaging sensor arrays. An Airy disk spot size of approximately 4 micrometers has been achieved for wavelength bands that extend from the visible blue to near IR. The automated system does rapid intrapixel row and/or column spatial mapping of individual pixels as well as rastered 2D spatial scans over multi-pixel girds. Commercially available equipment including a photometric eyepiece, a reflective objects, programmable pushers, and light-emitting diodes are utilized in the system. Scanned results using the system are presented for both front- and back-illuminating charge-coupled device imagers. The intrapixel response of a front-illuminated device shows good correlation with the physical cross section of the devices tested.
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Thomas A. Lind, Thomas A. Lind, Robert K. Reich, Robert K. Reich, William H. McGonagle, William H. McGonagle, Bernard B. Kosicki, Bernard B. Kosicki, } "Intrapixel response test system for multispectral characterization", Proc. SPIE 3649, Sensors, Cameras, and Systems for Scientific/Industrial Applications, (27 April 1999); doi: 10.1117/12.347080; https://doi.org/10.1117/12.347080
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