CAMERA STOP CALIBRATOR
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United States of America Patent
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Issued Date -
Aug 10, 2017
app pub date -
Dec 19, 2016
filing date -
Feb 5, 2016
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Abstract
A stop-weighted light reference includes an LED light source and a pulse-generator structured to drive the light source at pre-defined levels. The pre-defeined levels relate to one another on a loge scale. The light reference may be used to characterize a non-calibrated camera. A look-up-table (LUT) of output values may be stored in a stand-alone device or in a test and measurement device, such as a waveform monitor. The LUT may correlate a range of input values to a set of output values that are calibrated to be on a loge scale. In operation, a camera output may be used as an index to the LUT to cause the calibrated output to be generated.
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