TOTAL LIGHT QUANTITY MEASUREMENT SYSTEM, TOTAL LIGHT QUANTITY MEASUREMENT APPARATUS, AND TOTAL LIGHT QUANTITY MEASUREMENT METHOD

摘要

PROBLEM TO BE SOLVED: To provide an apparatus easily managed, and measuring the total light quantity of a light source at a high accuracy.;SOLUTION: The total light quantity measurement apparatus comprises: a first housing 101 having a first space for disposing the light source 300, a reflection plane 113 for positively reflecting a light emitted from the disposed light source 300, and a first opening 111 for transmitting a direct light and a reflection light; a second housing 102 having a second space, a second opening 121 with the same shape and area as the first opening 111, and an absorption plane 123 for absorbing the light on an inner surface; a detection means for detecting the first and second light quantities C, A transmitted through the first and second openings 111, 121; and a calculation means 104 for substituting the first and second light quantities C, A for the C and A in D=A+(C-A)/t (t is a reflectivity correction coefficient in a positive reflection), and calculating the total light quantity.;COPYRIGHT: (C)2011,JPO&INPIT