Eye detection system for providing eye gaze tracking
First Claim
Patent Images
1. An eye detection system comprising:
- a light source for emitting an incident beam of optical radiation,a controllable deflector disposed in the path of the incident beam and operative in combination with the light source for producing a divergent scanning beam, anda detector for detecting radiation reflected by an eye back along the path of the scanning beam.
1 Assignment
0 Petitions
Accused Products
Abstract
An eye detection system comprises a source, such as an infrared laser diodes for emitting a divergent beam of infrared radiation. A spatial light modulator is controlled so as to act as a deflector for scanning the beam. A detector detects radiation which is retro-reflected by the eye back along the path of the scanning beam. The deflection angle of the SLM and, for a position sensitive detector, the location of the center of illumination on the detector can be used to determine the angle to the center of the pupil of the eye. By subsequently detecting the angle to the glints corresponding to other sources and, the gaze position of the eye on a screen can be determined.
93 Citations
26 Claims
-
1. An eye detection system comprising:
-
a light source for emitting an incident beam of optical radiation, a controllable deflector disposed in the path of the incident beam and operative in combination with the light source for producing a divergent scanning beam, and a detector for detecting radiation reflected by an eye back along the path of the scanning beam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
-
Specification