Parallel optical coherence tomography equipment and auxiliary adjustment method

Abstract

Parallel optical coherence tomography equipment comprises a cubic spectroscope, the input end of the cubic spectroscope is connected with a lighting arm, and the output end of the cubic spectroscope is connected with an imaging arm, a sample arm and a reference arm. The invention provides an auxiliary adjustment method for parallel optical coherence tomography equipment. A point image or a minimumimage of the light source is used as a reference; a collimating lens and an imaging lens are used for reference-free iterative adjustment; a collimator and other references are not needed; the position relationship between the collimating lens and the light source and the position relationship between the imaging lens and the camera image sensor are directly utilized; interference imaging of thewide-spectrum extended light source can be realized through repeated iterative adjustment, the adjustment precision is high, the adjustment efficiency of the system can be greatly improved, a camera lens can be calibrated without a collimator, the light source can also be collimated without a calibration lens camera, and the method is accurate, reliable and simple and convenient to operate.

Description

technical field [0001] The invention relates to the technical field of coherent tomography, in particular to a parallel optical coherence tomography device and an auxiliary assembly method. Background technique [0002] Parallel Optical Coherence Tomography (POCT) is a further development of traditional Optical Coherence Tomography (OCT). The multi-channel simultaneous tomographic imaging method avoids the influence of lateral scanning on the system, and cooperates with a wide-spectrum light source, a large numerical aperture magnifying objective lens and a high quantum well depth camera to improve the lateral resolution and vertical resolution to 1um. It has broad application prospects in the fields of eye examination, digestive tract endoscopy, biological tissue biopsy and drug research. [0003] The POCT optical system is generally more complex, more sensitive to the error of the optical lens gap, requires higher installation accuracy, and is more difficult to install an...

AI Technical Summary

Problems solved by technology

[0003] The POCT optical system is generally more complex, sensitive to the error of the optical lens gap, requires higher installation accuracy, and is more difficult to install and adjust. Even ordinary calibrated lenses and collimated light sources cannot be used directly, and more fixes and attempts

At present, there are few technical materials on the installation and adjustment of POCT systems, and there are still many practical problems to be solved

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