Integrating photometer for measuring total flux of light generated from light source to be measured, and method for measuring total flux of light through use of the same

摘要

A mirror (3) is provided with a light source window (2) and an illumination window (4) each establishing communicative connection between an inner face side and an outer side of a hemispherical unit (1). The light source window (2) is an opening to which a light source (OBJ) to be measured is attached mainly. The illumination window (4) is an opening for guiding a flux of light from a correcting light source (9) used for measurement of self-absorption toward the inner face of the hemispherical unit (1). A self-absorption correcting coefficient of the light source (OBJ) is calculated based on an illuminance by a correcting flux of light in a case where the light source to be measured (OBJ) in a non-light emitting state is attached to the light source window (2) and an illuminance by a correcting flux of light in a case where a calibration mirror is attached to the light source window.