Integrating Photometer

2-1-550

Apparatus which enables luminous flux to be determined by a single comparison.

Note 1: The most commonly used form of integrating photometer is the Ulbricht sphere with associated photometric equipment.

Reference: C.I.E.

Note 2: In Britain, the term Photometric Integrator is also sometimes employed with the same meaning.

Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)

English