OPTICAL INSTRUMENT FOR TESTING OPTICAL SYSTEMS AND SAMPLES
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United States of America Patent
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app pub date -
Nov 30, 2009
filing date -
Dec 16, 2008
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Abandoned
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Abstract
The present invention is related with the optical instrument such as interferometer for testing the optical systems and samples whereas the optical instrument comprises the laser (1) for generating the laser beam which passes the beam expander (2), beam-splitter (23) dividing the laser beam to a working light beam and reference light beam, focusing objectives (3, 7), flat glass plate (4) with one side coated by thin metal highly reflecting coating with the pattern including a pinhole, computer (12), CCD camera (13), tested part or optical system (6). In addition the optical instrument comprises at least two flat mirrors (24, 25), observation objective and at least one stop (20) placed between the beam-splitter (23), flat mirrors (24, 25) and/or focusing objective (7).
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