Invention Grant
- Patent Title: Unique oblique lighting technique using a brightfield darkfield objective and imaging method relating thereto
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Application No.: US16561541Application Date: 2019-09-05
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Publication No.: US10955651B2Publication Date: 2021-03-23
- Inventor: Matthew C. Putman , John B. Putman , Julie A. Orlando , Jospeh G. Bulman
- Applicant: Nanotronics Imaging, Inc.
- Applicant Address: US OH Cuyahoga Falls
- Assignee: Nanotronics Imaging, Inc.
- Current Assignee: Nanotronics Imaging, Inc.
- Current Assignee Address: US OH Cuyahoga Falls
- Agency: DLA Piper LLP (US)
- Main IPC: G02B21/12
- IPC: G02B21/12 ; G02B5/00 ; G02B21/08 ; G02B21/36

Abstract:
A process is provided for imaging a surface of a specimen with an imaging system that employs a BD objective having a darkfield channel and a bright field channel, the BD objective having a circumference. The specimen is obliquely illuminated through the darkfield channel with a first arced illuminating light that obliquely illuminates the specimen through a first arc of the circumference. The first arced illuminating light reflecting off of the surface of the specimen is recorded as a first image of the specimen from the first arced illuminating light reflecting off the surface of the specimen, and a processor generates a 3D topography of the specimen by processing the first image through a topographical imaging technique. Imaging apparatus is also provided as are further process steps for other embodiments.
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