Dual focusing optical coherence imaging system

摘要

The present invention relates to a dual focusing optical coherence imaging system. The dual focusing optical coherence imaging system includes: a light source unit for generating broadband light; a main optical distributor for distributing the light generated from the light source to allow the light to be propagated; an interference unit including first and second interference parts for forming interference signals with respect to different focused areas of an object to be detected using the light distributed from the optical distributor, and a common sample arm commonly connected to the first and second interference parts; an optical switch connected to the first and second interference parts to select at least one of the interference signals transmitted from the first and second interference parts; and a detection unit for converting the interference signal selected by the optical switch according to a preset mode into an electrical signal.

主权项

1. A dual focusing optical coherence imaging system comprising:
a light source unit for generating broadband light; a main optical distributor for distributing the light generated from the light source to allow the light to be propagated; an interference unit including first and second interference parts for forming interference signals with respect to different focused areas of an object to be detected using the light distributed from the optical distributor, and a common sample arm commonly connected to the first and second interference parts; an optical switch connected to the first and second interference parts to select at least one of the interference signals transmitted from the first and second interference parts; and a detection unit for converting the interference signal selected by the optical switch according to a preset mode into an electrical signal, wherein the first interference part comprises: a first optical distributor for receiving the broadband light distributed from the main optical distributor; a first sample arm comprising a first sample arm collimator for receiving the light distributed from the first optical distributor; and a first reference arm comprising a first reference arm collimator for receiving the light distributed from the first optical distributor other than the light distributed to the first sample arm, and a first reference mirror for reflecting the light incident from the first reference arm collimator to allow the reflected light to return to the first optical distributor, wherein the second interference part comprises: a second optical distributor for receiving the broadband light distributed from the main optical distributor; a second sample arm comprising a second sample arm collimator for receiving the light distributed from the second optical distributor; and a second reference arm comprising a second reference arm collimator for receiving the light distributed from the second optical distributor other than the light distributed to the second sample arm, and a second reference mirror for reflecting the light incident from the second reference arm collimator to allow the reflected light to return to the second optical distributor, and wherein the common sample arm comprises: a common arm optical distributor for reflecting the light transmitted from the first optical distributor and the second optical distributor through the first sample arm collimator and the second sample arm collimator; a common arm optical scanner for irradiating the light reflected from the common arm optical distributor toward the different focused areas of the object to be detected; and a common arm objective lens for focusing the light irradiated from the common arm optical scanner to allow the focused light to be irradiated onto the different focused areas of the object to be detected, and re-transmitting the light reflected from the different focused areas of the object to be detected to the common arm optical scanner.