The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 2019
Filed:
Mar. 28, 2018
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-Do, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, Gyeonggi-Do, KR;
Abstract
An apparatus for testing an object includes a moving unit configured to hold and move the object. A transmissive illuminating unit includes a light source generating light and a transmissive mask pattern. The transmissive mask pattern includes a first region configured to convert the light generated from the light source into a slit light, and a second region arranged in a movement direction of the object with respect to the first region to partially transmit the light generated from the light source. The transmissive illuminating unit is configured to project a measuring light, which is provided by transmitting the light generated from the light source through the transmissive mask pattern, to the object. A detecting unit is configured to receive a reflected light of the measuring light from the object and to detect a height and surface state of the object based on the reflected light.