photometric system

set of well-defined passbands (or filters), with a known sensitivity to incident radiation

en-GB/ˌfəʊtəʊˈmɛtɹɪk ˈsɪstəm/
en-US/ˌfoʊtoʊˈmɛtɹik ˈsɪstəm/

دسته بندی ها:

photometry