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 2:
3. The common beam scanning retinal imaging system according to claim 2, characterized in that, the sight beacon module includes an LED array, a sight beacon lens, and a first planar reflection mirror, wherein the light emitted by any one of LED beads in the LED array after being lit by the control module propagates through the sight beacon lens, is reflected by the first planar reflection mirror, is reflected by the first dichroic beam splitter, and is sequentially transmitted through the second dichroic beam splitter, the third dichroic beam splitter and the fourth dichroic beam splitter, and then reaches the human eye, so as to allow the human eye to gaze at the luminous LED bead to achieve sight fixation;
the pupil monitoring module includes a ring-shaped LED array, an imaging lens, and an area-array detector, wherein the light emitted by the ring-shaped LED array illuminates the pupil of the human eye, and is reflected by the pupil of the human eye, passes through a hollow part of the ring-shaped LED array, is transmitted through the fourth dichroic beam splitter, is reflected by the third dichroic beam splitter, and is finally focused by the imaging lens to the area-array detector for pupil imaging; and the area-array detector is configured to convert the received light signal into an electrical signal and then output the electrical signal to the control module; the control module is configured to obtain a pupil imaging image and finally output the pupil imaging image to the output module for display and storage.