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INTEGRATING-SPHERE PHOTOMETER AND MEASURING METHOD OF THE SAME CAPABLE OF CORRECTING ERRORS DUE TO A SELF-SCREENING EFFECT WHEN MEASURING THE TOTAL LUMINOUS FLUX OF A SURFACE LIGHT SOURCE
INTEGRATING-SPHERE PHOTOMETER AND MEASURING METHOD OF THE SAME CAPABLE OF CORRECTING ERRORS DUE TO A SELF-SCREENING EFFECT WHEN MEASURING THE TOTAL LUMINOUS FLUX OF A SURFACE LIGHT SOURCE
PURPOSE: An integrating-sphere photometer and measuring method of the same are provided to effectively correct errors due to a self-screening effect and self-absorption when measuring the total luminous flux of a surface light source even if a general standard lamp is used.;CONSTITUTION: An integrating-sphere photometer comprises an integrating sphere(70), a photometer(10), a main light shielding film(20), a target light source(30), a secondary light source, and a secondary light shielding film(60). The integrating sphere comprises a left hemisphere(70a) and a right hemisphere(70b). The photometer is arranged on the central surface of the right hemisphere. The main light shielding film is arranged before the photometer at an interval. The target light source is arranged on the central area of the integrating sphere and radiates light at least to the radiating area of the left hemisphere. The secondary light source is arranged near the interface of the left and right hemispheres and radiates light to the radiating area.;COPYRIGHT KIPO 2011
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