OPHTHALMOLOGIC IMAGING DEVICE

• Main Author: YAMAUCHI SOICHIRO
• Format: Patent
• Language: English; Japanese
• Published: 05.12.2024
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

To reduce deterioration in the image quality of a photographed image.SOLUTION: An ophthalmologic imaging device including an illumination optical system with a scanning part for scanning an imaging target tissue of a subject's eye with illumination light, and a light receiving optical system causing a light receiving part to receive return light from the subject's eye illuminated with the illumination light via a pinhole disposed at a position conjugate to the imaging target tissue, and acquiring a captured image of the imaging target tissue of the subject's eye, includes: adjustment means for adjusting a physical relation between an optical axis of the returned light and the pinhole; drive means for driving the adjustment means; and control means for controlling the drive means, the control means sequentially changing the optical axis position of the return light with respect to the pinhole and correcting the optical axis deviation of the return light with respect to the pinhole based on a light receiving signal from the light receiving part with the change.SELECTED DRAWING: Figure 1 【課題】 撮影画像の画質の低下を軽減する。【解決手段】 被検眼の撮影対象組織上で照明光を走査する走査部を有する照明光学系と、前記照明光に照明された被検眼からの戻り光を、撮影対象組織と共役な位置に配置されたピンホールを介して受光部に受光する受光光学系と、を備え、受光部からの受光信号に基づいて被検眼の撮影対象組織の撮影画像を得る眼科撮影装置であって、戻り光の光軸とピンホールとの位置関係を調整する調整手段と、調整手段を駆動する駆動手段と、駆動手段を制御する制御手段であって、ピンホールに対する戻り光の光軸位置を順次変化させ、この変化に伴う受光部からの受光信号に基づいてピンホールに対する戻り光の光軸ずれを補正する制御手段と、を備える。【選択図】 図１