DEVICE AND METHOD FOR MEASURING LUMINANCE UNIFORMITY

摘要

A device and a method for measuring luminance uniformity are provided to check a defect of the luminance uniformity when the difference between the luminance of each area and the luminance of an adjacent area exceeds the pre-set allowance error range so as to check the objective luminance uniformity and to obtain quantifiable quality management. A device for measuring luminance uniformity comprises a luminance measuring part(10) and a judging part(20). The luminance measuring part divides a light emitting body(L) into a plurality of areas and measures luminance of each divided area. The judging part compares the luminance of each area measured by the luminance measuring part with the luminance of an adjacent area, and judges that the luminance uniformity of the light emitting body is defective when the difference between the luminance of each area and the luminance of the adjacent area exceeds the pre-set allowance error range. An output part(30) outputs the luminance value of each area.