REFLECTION LIGHT DISTRIBUTION PREDICTION DEVICE, GLOSSINESS PREDICTION DEVICE, AND GLOSSY FEELING PREDICTION DEVICE

摘要

PROBLEM TO BE SOLVED: To accurately predict the reflection light distribution of the surface of an object.;SOLUTION: A reflection light distribution prediction device is configured such that a surface of an object is partitioned for each predetermined plane size, and an approximation plane expression is calculated in which a three-dimensional local curve in each partition of the surface of the object is converted for each partition into an approximation local plane, and mirror reflectance in the respective approximation local planes is calculated based on a reflection direction and a reflective index in the respective approximation local planes, and the reflection light distribution on the surface of the object is analyzed based on the respective calculation results. When the surface of the object is partitioned into a plurality of parts, the surface of the object is partitioned into a square whose one side is equal to or less than 0.7 [μm] along an X-Y plane which is a virtual plane perpendicular to a Z axis extending in a height direction of the surface.;COPYRIGHT: (C)2015,JPO&INPIT