Method and apparatus for detecting properties of reflective transparent surface coatings on a sheet of transparent material
作者： Mark A. Imbrock , Jeffrey A. Simpson
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摘要: A method and apparatus for detecting properties of reflective transparent surface coatings on a sheet material (12), such as glass or plastic material. One more light beams (14) are directed at an angle to the surfaces under test energy in reflections sensed. The presence location coating is determined from relative magnitudes beam (16a, 16d). type beam. one different wavelength beams. may be, example, Low-E coating, metal oxide left float glass.
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