a unit of luminance that is equal to the luminance of a uniform diffuser that is emitting 1/tt cd/nr.
APOSTILB: "An apostilb refers to a simple unit of luminance. "
Cite this page: N., Sam M.S., "APOSTILB," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/apostilb/ (accessed June 26, 2022).
