OPTICAL SYSTEM AND METHOD FOR ADJUSTING DIOPTER

摘要

An optical system and a method for adjusting diopter are provided. The optical system includes an eyepiece (10), a half mirror (20), a display screen (30), a first motor (40) coupling with the display screen (30), an image sensor (50), and an image analysis system (60) coupling with the display screen (30), the first motor (40), and the image sensor (50). The first motor (40) controls the display screen (30) to move back and forth along the first optical axis (70). The image sensor (50) converts reflected light signals into fundus images. The image analysis system (60) controls the first motor (40) to adjust a distance between the display screen (30) and the half mirror (20) according to the fundus images.