cie

17-25-024

equality-of-brightness photometer

visual photometer in which parts of the test and comparison field are viewed simultaneously and are adjusted to equality of brightness

Note 1 to entry: This entry was numbered 845-05-20 in IEC 60050-845:1987.

Note 2 to entry: This entry was numbered 17-391 in CIE S 017:2011.

Publication date: 2020-12
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