Patent ID: 11896309
Assignee: SUZHOU INSTITUTE OF BIOMEDICAL ENGINEERING AND TECHNOLOGY, CHINESE ACADEMY OF SCIENCES
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A

Claim 1:
2. The common beam scanning retinal imaging system according to claim 1, characterized in that, the detection module includes a fifth dichroic beam splitter, a first detection optical path and a second detection optical path, wherein the fifth dichroic beam splitter is configured to transmit one part of the received light to the first detection optical path and simultaneously reflect the other part of the received light to the second detection optical path; the first detection optical path includes a first collection lens, a first pinhole and a first detector, and the second detection optical path includes a second collection lens, a second pinhole and a second detector; wherein one part of the returning imaging light beam carrying the light intensity information of the human eye is transmitted through the fifth dichroic beam splitter and outputted to the first collection lens, passes through the first pinhole and reaches the first detector, so as to obtain a retinal imaging image; wherein the other part of the returning imaging light beam carrying the light intensity information of the human eye is reflected by the fifth dichroic beam splitter and outputted to the second collection lens, passes through the second pinhole and reaches the second detector, so as to obtain another retinal imaging image;
the beam scanning module includes a first transmissive or reflective telescope, a biaxial scanning mirror and a second transmissive or reflective telescope arranged successively along the incident optical path, wherein the biaxial scanning mirror is configured to be driven by a periodic voltage outputted from the control module to perform horizontal and vertical two-dimensional scanning of the retinal plane.