polarization-sensitive optical coherence imaging system for diagnosis of cervix uteri

摘要

invention neck of the video signal to obtain a probe with the video signal received via the transmission path to the cervix, including a diagnostic unit for analyzing the polarization sensitivity - the imaging system as the light interference, a light source unit; Detector for receiving the video signal obtained from the probe; And to receive an output signal from the detector, includes a computer system to measure the scattering and birefringence of the light by the cervical tissue, the probe is a linear polarizer; Purely in the horizontal polarized light output from the linear polarizer is one path to the reference arm, to the other path is an optical splitter, which proceed in the sample arm; And to pass the light flowing in the reference arm gwangji delegation, a quarter-wave plate in the light reflected from the first gwangji delegation to return to the optical splitter; The light to be passed by the sample flowing through the arm is installed on the mirror galvanometer, a second quarter-wave reflected by the tissue sample or to the backscatter return the light reflected by the mirror installed on a galvanometer optical splitter plates; It is transmitted from the second quarter-wave plate to the galvanometers to focus the light reflected by the mirror installed on a galvanometer and made incident on the tissue sample, tissue sample, or reflected by the backscatter of light back to the galvanometer a mirror provided on the objective lens to pass; The reference arm and the sample arm, respectively, return of the interference signal in the light of the polarized light divider to separate the light generated from the horizontal component and the vertical component of the light gathered by the optical splitter; Passing an optical fiber collimator of the transmission light and the horizontal component of the vertical component of the light emitted by the polarized light splitter; and consisting of characterized in that