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公开(公告)号：US20190011250A1
公开(公告)日：2019-01-10
申请号：US16067337
申请日：2017-01-20
Applicant: 3SHAPE A/S
Inventor： Ashwani Kumar , Deepak Vijayakumar Nair , Erik Ask , Karl-Josef Hollenbeck
Abstract: Disclosed is an optical coherence tomography scanner and a method for recording sub-surface scans of an object, wherein a position encoder is arranged in the path of the probing beam of an interferometric system. The encoder pattern is detected in a sequence of A scans at generated for different probing beam positions on the scanned object, the probing beam position and/or inclination for at least one A scan of said sequence of A scans is deducing based on the detected encoder pattern, and the sub-surface scan of the object is generated based on the sequence of A scans taking into account the deduced probing beam position and/or inclination.
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公开(公告)号：US10684115B2
公开(公告)日：2020-06-16
申请号：US16067337
申请日：2017-01-20
Applicant: 3SHAPE A/S
Inventor： Ashwani Kumar , Deepak Vijayakumar Nair , Erik Ask , Karl-Josef Hollenbeck
Abstract: Disclosed is an optical coherence tomography scanner and a method for recording sub-surface scans of an object, wherein a position encoder is arranged in the path of the probing beam of an interferometric system. The encoder pattern is detected in a sequence of A scans at generated for different probing beam positions on the scanned object, the probing beam position and/or inclination for at least one A scan of said sequence of A scans is deducing based on the detected encoder pattern, and the sub-surface scan of the object is generated based on the sequence of A scans taking into account the deduced probing beam position and/or inclination.
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