Optical film defect detection system and optical film defect detection method {THE SYSTEM AND METHOD FOR DETECTING DEFECT OF OPTICAL FILM}

摘要

The present invention relates to an optical film defect detection system and detection method, and more particularly, to a system and method for acquiring an image for an optical film defect projected on a screen to detect an optical film defect. In one embodiment of the present invention, an optical film defect detection system is provided. The optical film defect detection system is disposed at a distance from the optical film, is provided with an illumination unit for irradiating light toward one surface of the optical film, is disposed at a distance from the other surface of the optical film, and is irradiated from the illumination unit. An imaging unit for acquiring an image for a defect of an optical film projected on a screen, a screen appearing on which a defect present on the optical film is projected and appeared by passing the optical film through the optical film And an analysis unit for analyzing the acquired image and detecting defects of the optical film based on the analysis result.