DEFECT INSPECTION DEVICE, OPTICAL MEMBER MANUFACTURING SYSTEM, AND OPTICAL DISPLAY DEVICE PRODUCTION SYSTEM

摘要

A defect inspection device for an optical member including a polarizer includes a light source, an imaging device for imaging an image produced by transmitted light from the optical member, a first polarizing filter that is disposed on an optical path between the light source and the optical member and has a first absorption axis, a second polarizing filter that is disposed on an optical path between the imaging device and the optical member and has a second absorption axis, a first movement device for moving the first polarizing filter forward and backward in relation to the optical path between the light source and the optical member, and a second movement device for moving the second polarizing filter forward and backward in relation to the optical path between the imaging device and the optical member.