Adaptive optical retina imaging device and method

US10070782B2 · kind B2 · utility

Assignee

• Institute of Optics and Electronics, Chinese Academy of Sciences · CN

Inventors

• Yi He · Chengdu, CN
• Guohua Shi · 林湖乡, CN
• Jinsheng Yang · Baoshan, TW
• Ling Wei · Chengdu, CN
• Xiqi Li · Sichuan, CN
• Zhibin Wang · Toronto, CA
• Yudong Zhang · Sichuan, CN

Key dates

• Filing date: Apr 26, 2016
• Grant date: Sep 11, 2018
• Expiry date: Oct 16, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B26/101
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The present disclosure provides an adaptive optical retina imaging apparatus and method. The adaptive optical retina imaging apparatus comprises an optical processing unit, an adaptive optical unit, a two-dimensional scanning unit and a primary aberration correcting unit, in which an imaging unit included in the optical processing unit is imaging based on the signal after high order aberration compensation and low order aberration compensation. By combining the adaptive optical technique, a con-focal scanning technique and the optical coherence tomography technique, two wave front sensors are utilized to detect wave front aberrations between the con-focal scanning optical path and the optical coherence tomography optical path and two wave front correctors are utilized to correct low order aberration and high order aberration of human's eyes, so as to implement low order aberration and high order aberration for the two optical paths and to implement imaging of human's eyes in a higher transverse resolution and a higher longitudinal resolution.