Article | REF: E6570 V2

Low light level imaging - Fundamentals

Author: Thierry MIDAVAINE

Publication date: December 10, 2023

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2. A few reminders of photometry and spectral representations

2.1 Photometric quantities and units

The naked eye, or one equipped with an optical device such as a pair of binoculars or a telescope, is the performance benchmark for all night vision technology solutions. For eyes, it is customary to use photovisual units, whose application is limited to the Visible spectral range. For optoelectronic components, radiometric units are used, or better still, by dividing by the photon energy (§ 2.3 , relation (1)...

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A few reminders of photometry and spectral representations
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