Eye tracker, eye tracking system, method, storage medium and program product

CN122362665APending Publication Date: 2026-07-10
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Patent Information

Application Number
CN202610675339.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Filing Date
2026-05-15
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing eye trackers have low accuracy in tracking the angle of human eye movement, especially for users with small eyes, who are easily affected by eyelid occlusion and ambient light interference, resulting in poor stability of gaze tracking.

Method used

An infrared light source and an infrared camera are arranged in a coaxial configuration and combined with a beam splitter assembly. This allows infrared light to enter the human eye coaxially in front of the visual axis. The coaxial infrared light reflected by the human eye is reflected back to the infrared camera along the original optical path. The human eye achieves pupil imaging by adjusting the optical path through the beam splitter assembly.

Benefits of technology

It significantly improves the tracking accuracy of eye movement angle and the overall reliability of eye tracking, expands adaptability, reduces eyelid occlusion and ambient light interference, and improves the stability and accuracy of pupil recognition.

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Abstract

This application provides an eye tracker, eye tracking system, method, storage medium, and program product, relating to the field of gaze tracking technology. The eye tracker includes a beam splitter assembly and at least one infrared light source and an infrared camera arranged coaxially. The beam splitter assembly is used to adjust the optical path of the infrared light emitted by each of the at least one infrared light source, generating coaxial infrared light propagating directly in front of the human eye's visual axis and incident on the human eye. Simultaneously, it reflects the coaxial infrared light reflected back from the human eye to the infrared camera. The infrared camera is used to acquire images of the human eye. This application, by arranging at least one infrared light source and an infrared camera coaxially and combining them with the beam splitter assembly, enables infrared light to enter the human eye coaxially in front of the human eye's visual axis, and reflects the coaxial infrared light reflected from the human eye back to the infrared camera along the original optical path, achieving pupil imaging and effectively improving the tracking accuracy of eye movement angles and the overall reliability of eye tracking.
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