| 摘要 |
PURPOSE:To enable the determining of a relative relationship among quantities of reflected light from parts of a lighted object accurately, by measuring quantity of reflected lights from the parts of the object being lighted on the same measuring conditions eliminating the need for keeping the distance between a quantity of light detector and the lighted object constant continuously. CONSTITUTION:A proper quantity of light correction factor affecting the measurement of quantities of reflected light is determined at measuring points depending on changes in the distance between a measuring base 12 and a quantity of light detector driving system and a detector 14 and a lighted object 11 respectively. Then, the quantity of reflected lights from parts of the lighted object 11 as measured with the detector 14 is corrected by the quantity of light correction factor at each measuring point with such an arrangement, quantities of reflected light from the parts of the lighted object 11 can be measured on the same measuring conditions eliminating the need for keeping the distance between the detector 14 and the lighted object 11 constant continuously. This enables the determining of a relative relationship among quantities of reflected light from the parts of the lighted object 11 accurately. |
