OCT DEVICE

• Main Authors: YOGO HIROFUMI, SATAKE NORIMASA
• Format: Patent
• Language: English; Japanese
• Published: 12.08.2022
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEDICAL OR VETERINARY SCIENCE; PHYSICS; SURGERY; TESTING

To provide an OCT device which can acquire OCT data in an excellent manner.SOLUTION: An OCT device includes: an OCT optical system having a light splitter that splits light from a light source into measurement light guided to a tissue of a subject and reference light guided to a reference light passage and a detector that receives a spectral interference signal of the measurement light with the reference light; modulation component acquisition means for acquiring modulation component information indicating modulation components by self-interference of the reference light by processing a receiving signal of the reference light from the detector; and OCT data generating means which reduces a self-interference noise of OCT data based on the modulation component information in arithmetic processing for generating the OCT data of the subject from the spectral interference signal of the measurement light with the reference light.SELECTED DRAWING: Figure 7 【課題】 良好にＯＣＴデータを得ることができるＯＣＴ装置を提供する。【解決手段】 光源からの光を、被検体の組織上に導かれる測定光と、参照光路に導かれる参照光とに分割する光分割器と、測定光と参照光とのスペクトル干渉信号を受光する検出器と、を含むＯＣＴ光学系と、参照光の自己干渉による変調成分を示す変調成分情報を、検出器からの参照光の受光信号を処理することによって取得する変調成分取得手段と、測定光と参照光とのスペクトル干渉信号から被検体のＯＣＴデータを生成する演算処理において、ＯＣＴデータにおける自己干渉ノイズを変調成分情報に基づいて低減するＯＣＴデータ生成手段と、を備えるＯＣＴ装置。【選択図】 図７