Near-Eye Display Device And Methods With Coaxial Eye Imaging
First Claim
1. A near-eye display device, with coaxial eye imaging, for mounting in field of view of an eye of a user, comprising:
- a display unit for displaying a display image;
a viewing unit for (i) presenting the display image to the eye based upon polarized visible light received from the display unit and (ii) transmitting ambient light from an ambient scene toward the eye; and
an eye imaging unit includingan illumination module for generating infrared light,a first polarizing beamsplitter interface, disposed between the display unit and the viewing unit, for (i) merging a polarized infrared component of the infrared light with the polarized visible light and (ii) separating from the polarized visible light a portion of the polarized infrared component reflected by the eye, anda camera for forming an image of the eye based upon the portion.
1 Assignment
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Accused Products
Abstract
A near-eye display device, with coaxial eye imaging, for mounting in field of view of an eye of a user, includes a display unit for displaying a display image, a viewing unit for (i) presenting the display image to the eye based upon polarized visible light received from the display unit and (ii) transmitting ambient light from an ambient scene toward the eye, and an eye imaging unit including (a) an illumination module for generating infrared light, (b) a first polarizing beamsplitter interface, disposed between the display unit and the viewing unit, for (i) merging a polarized infrared component of the infrared light with the polarized visible light and (ii) separating from the polarized visible light a portion of the polarized infrared component reflected by the eye, and (c) a camera for forming an image of the eye based upon the polarized infrared component reflected by the eye.
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Citations
21 Claims
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1. A near-eye display device, with coaxial eye imaging, for mounting in field of view of an eye of a user, comprising:
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a display unit for displaying a display image; a viewing unit for (i) presenting the display image to the eye based upon polarized visible light received from the display unit and (ii) transmitting ambient light from an ambient scene toward the eye; and an eye imaging unit including an illumination module for generating infrared light, a first polarizing beamsplitter interface, disposed between the display unit and the viewing unit, for (i) merging a polarized infrared component of the infrared light with the polarized visible light and (ii) separating from the polarized visible light a portion of the polarized infrared component reflected by the eye, and a camera for forming an image of the eye based upon the portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for performing coaxial eye imaging in a near-eye display device for mounting in field of view of an eye of a user, comprising:
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using a first polarizing beamsplitter interface to merge polarized infrared light with polarized visible display light from a display; using a second polarizing beamsplitter interface to superimpose the polarized infrared light and the polarized visible light on ambient light from an ambient scene to (a) illuminate the eye with the polarized infrared light, (b) present an image of the display to the eye, and (c) allow the eye to view the ambient scene; and imaging the eye through the second polarizing beamsplitter interface and the first polarizing beamsplitter interface based upon a portion of the polarized infrared light reflected by the eye. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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Specification