| 摘要 |
An apparatus for detecting spots on an FPD(Flat Panel Display) is provided to effectively and regularly detect the spots on the FPD by testing the FPD without adjusting the illumination property and an angle of the FPD. An apparatus for detecting spots on an FPD includes an illumination optical system(100), an image forming optical system(200), and a high sensitivity camera(300). The illumination optical system comprises a light source, a light pipe, and a lens system where various lenses are mixed to treat uniform light with the high light after uniformizing the emitted light to irradiate light to a detecting surface of the FPD. The image forming optical system forms an image by receiving the light with linearity among the light irradiated to the detecting surface of the FPD through the illumination optical system. The high sensitivity camera obtains the image of the detecting surface of the FPD treated through the image forming optical system as a high performance camera which is able to distinguish minute brightness data.
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