DUAL FOCUSING OPTICAL COHERENCE TOMOGRAPHY WITH BALANCED DETECTION

摘要

The present invention relates to a light source unit (100) for generating light in a wide band; A main optical distributor 120 including at least one balancing optical distributor for distributing and propagating light generated from the light source unit; An interferometer 201 (a first interferometer and a second interferometer) for forming an interference signal for one or more focus regions of the subject using the light distributed from the main optical distributor, and an interferometer 201 A common sample arm 202 commonly connected to the first interferometer (a second interferometer) and forming a light path difference to at least one focus region of the inspected light of the interferometer (the first interferometer and the second interferometer) An interfering unit (200) having a balancing switching unit (300) for alternately switching-outputting an interference signal formed by a signal transmitted from an interferometer through at least a part of the main optical distributor; And a detection unit (400) for converting the interference signal output from the balancing switching unit into an electrical signal.