OPTICAL SYSTEM AND METHOD OF JUDGING CATEGORY OF UNDER-TEST OBJECT BY USING SUCH OPTICAL SYSTEM
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United States of America Patent
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Issued Date -
Nov 17, 2016
app pub date -
Apr 29, 2016
filing date -
May 15, 2015
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Abstract
An optical system and a method of judging a category of an under-test object are provided. The optical system includes a reflective structured light generation element and a sense judgement device. The reflective structured light generation element is installed on an under-test object. After the light beams from a light source are received by the reflective structured light generation element, a structured light is generated and reflected to an under-test surface. Consequently, a test pattern is shown on the under-test surface. The sense judgement device is used for sensing the test pattern on the under-test surface, and judging a category of the under-test object according to the sensed test pattern. The use of the structured light to judge the category of the under-test object can achieve the anti-counterfeiting efficacy.
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