METHOD FOR EVALUATING REFLECTION SURFACE OF REFLECTION MIRROR OF LIGHT FIXTURE FOR CAR, EVALUATION SYSTEM OF REFLECTION MIRROR AND RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a method for evaluating the reflection surface of a reflection mirror of a light fixture for a car, an evaluating system for a reflection surface, and a recording medium such that the correspondence between the reflection surface and the distribution pattern of light is defined and controllability of the distribution pattern of light for designing the reflection surface can be improved. SOLUTION: The reflection surface RS to be evaluated is divided by a XY curve line Q on the XY plane and XZ curve lines R passing a plurality of division points D on the XY curve line Q and parallel to the reflection direction of light at the point D to produce a plurality of partial curved planes S. An evaluation point P is determined on each partial curved plane S and the distribution pattern of light is calculated and displayed for each curved plane S based on the reflection conditions of the light from the light source position F for each evaluation point P.