Patent ID: 9273950
Filing Date: 2016-03-01
CPC Classification: A61B,G01B

Claim Text:
1. An optical coherence tomography (OCT) imaging system comprising: a light source configured to emit light; a beam splitter configured to, receive the light from the light source, split the light into a first light portion directed along a sample arm comprising a sample and a second light portion directed along a reference arm comprising a reference mirror, receive a first reflected light portion from the sample arm and a second reflected light portion from the reference arm, and combine the first and second reflected light portions to obtain an interference signal; and a controller comprising logic configured to perform an auto-ranging process to match the reference arm with the sample arm, wherein matching the reference arm with the sample arm comprises; adjusting the reference arm to each of a plurality of discrete reference arm positions over a distance; acquiring a scan of the sample at each reference arm position; determining, for each scan, a figure of merit value; and selecting the reference arm position having a figure of merit value indicating a match with the reference arm.