DEVICE FOR RECORDING IMAGES OF CROSS-POLARIZATION LOW-COHERENCE OPTICAL INTERFEROMETRY Russian patent published in 2017 - IPC G01B9/02 

FIELD: physics.

SUBSTANCE: device for recording images of the cross-polarization low-coherence optical interferometry, comprises an optical radiation source, a guide element optically coupled to the optical radiation source, a delivery device forming and delivering an optical beam to the test sample containing the input and output (distal) part, the output of which comprises a polarization-independent reference reflector, the delivery device provides the formation of the combined optical radiation, comprises a conversion device backscattered from the test sample and reflected from the polarization-independent reference radiation reflector transforming the device, designed for separating the combined optical radiation, incoming from the delivery device through the guide element, into, at least, two parts and subsequent joining these parts after their obtaining the preset optical delays. Herewith, at least, one of the optical paths comprises a polarization ruler intended for generating the polarization state of the first optical radiation part orthogonal against the polarization state of the second optical radiation part, an optoelectronic recording device optically coupled to the converting device designed for the spectral registration of, at least, one of: the cross-polarized component of the combined optical radiation returned from the test object, and the component of the combined optical radiation returned from the test object that preserved the original state of the radiation polarization . In addition, the polarization ruler is made electronically controlled to provide, in the consistent registration process, images of the polarization state consistent change of the first optical radiation part from the orthogonal to the parallel against the polarization state of the second optical radiation part and vice versa.

EFFECT: implementing the visualization of the depolarizing properties of the biological tissue surface layers and evaluating the presence of the organized depolarizing structures such as collagen fibers.

8 cl, 5 dwg