EYE-TRACKING SYSTEM FOR HEAD-MOUNTED DISPLAY
First Claim
Patent Images
1. A see-through head-mounted display system comprising:
- a freeform prism;
a display device configured to emit display light through the freeform prism to an eye of a user; and
an imaging device having an entrance pupil positioned at a back focal plane of the freeform prism, the imaging device configured to receive gaze-detection light reflected from the eye and directed through the freeform prism.
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Abstract
Embodiments are disclosed for a see-through head-mounted display system. In one embodiment, the see-through head-mounted display system comprises a freeform prism, and a display device configured to emit display light through the freeform prism to an eye of a user. The see-through head-mounted display system may also comprise an imaging device having an entrance pupil positioned at a back focal plane of the freeform prism, the imaging device configured to receive gaze-detection light reflected from the eye and directed through the freeform prism.
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Citations
20 Claims
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1. A see-through head-mounted display system comprising:
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a freeform prism; a display device configured to emit display light through the freeform prism to an eye of a user; and an imaging device having an entrance pupil positioned at a back focal plane of the freeform prism, the imaging device configured to receive gaze-detection light reflected from the eye and directed through the freeform prism. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An eye-tracking system comprising:
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a glint source configured to emit gaze-detection light through a freeform prism to an eye of a user; and an imaging device having an entrance pupil positioned at a back focal plane of the freeform prism, the imaging device configured to receive gaze-detection light reflected from the eye and directed through the freeform prism. - View Dependent Claims (15, 16, 17)
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18. A method of performing gaze-detection with a see-through head-mounted display system, the method comprising:
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emitting display light through a freeform prism to an eye of a user; receiving gaze-detection light at a back focal plane of the freeform prism, the gaze-detection light being reflected from the eye and directed through the freeform prism; and determining gaze direction from the gaze-detection light reflected from the eye. - View Dependent Claims (19, 20)
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Specification