Patent ID: 9737208
Date: 2017-08-22
CPC Classifications: A61B

Claim:
1. A optical coherence tomography system comprising: —a broadband light radiation source (LBS); —a reference optical arm (RA); —movable scanning means (M) for scanning a sample, adapted to receive the light radiation emitted by said source to illuminate a portion of the sample corresponding to a position of the scanning means (M), generating a radiation hitting a surface of the same sample, and to collect the backscattered radiation from the sample; a signal detection arm (MA) with at least one sensor adapted to reconstruct the spectrum of the signal resulting from the recombination of the radiation collected by said reference arm (RA) and by said scanning means (M); beam splitter means adapted to permit the passage of the radiation from the source (LBS) to the scanning means and to the reference arm (RA), and from these to the detection arm (MA); and a control and processing unit (CUP) adapted to control the above mechanical and electronic components, to transform said spectrum in a reflectivity profile of the illuminated sample portion, and to generate an image of the sample by juxtaposing a number of profiles each corresponding to a sample portion and obtained further to a displacement of said scanning means; wherein said control means are configured to control an exposure time of said sensor in said detection arm (MA) so that the exposure time, and consequently the intensity of the signal collected by said scanning means (M), progressively increase as scanning positions are taken corresponding to the lighting of sample surface portions in which the angle between radiation that hits said sample surface and a line normal to the same surface at the hitting point is increased.