Invention Grant
US09546967B2 Apparatus and method for identifying defects within the volume of a transparent sheet and use of the apparatus
有权
用于识别透明片材体积内的缺陷的装置和方法以及该装置的使用
- Patent Title: Apparatus and method for identifying defects within the volume of a transparent sheet and use of the apparatus
- Patent Title (中): 用于识别透明片材体积内的缺陷的装置和方法以及该装置的使用
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Application No.: US14453732Application Date: 2014-08-07
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Publication No.: US09546967B2Publication Date: 2017-01-17
- Inventor: Bruno Schrader , Frank Macherey , Holger Wegener , Michael Stelzl
- Applicant: SCHOTT AG
- Applicant Address: DE Mainz
- Assignee: SCHOTT AG
- Current Assignee: SCHOTT AG
- Current Assignee Address: DE Mainz
- Agency: Ohlandt, Greeley, Ruggiero & Perle, LLP
- Priority: DE102012002174 20120207
- Main IPC: G01B9/02
- IPC: G01B9/02 ; G01N21/958 ; G01N21/896 ; G01N21/49 ; G01N21/45 ; G01N21/94 ; G01N21/47
Abstract:
An apparatus for identifying defects within the volume of a transparent sheet, such as a glass sheet, is provided. The apparatus includes an illumination device that directs incident light onto at least a portion of a surface of the sheet so as to illuminate the sheet, and an image detector onto which the light backscattered from the sheet is directed to image the sheet. The apparatus generates at least two interference images under different capturing conditions in order to perform identification of defects by evaluating the at least two interference images.
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