Head mounted display eyepiece with integrated depth sensing
First Claim
1. An eyepiece for a head mounted display, the eyepiece comprising:
- an imaging region including a camera; and
a viewing region to be aligned with an eye of a user and including a first beam splitter (“
BS”
) and a second BS, wherein the viewing region is partially transparent to pass a first portion of ambient scene light received through an ambient scene side of the eyepiece out an eye-ward side of the eyepiece, wherein the first BS and the second BS are partially reflective and oriented to redirect offset portions of the ambient scene light received through the ambient scene side along the eyepiece towards the imaging region,wherein the camera is positioned to capture both of the offset portions of the ambient scene light redirected by the first BS and the second BS.
2 Assignments
0 Petitions
Accused Products
Abstract
An eyepiece for a head mounted display includes an imaging region and a viewing region. The imaging region includes a camera. The viewing region is aligned with an eye of a user and includes a first beam splitter and a second beam splitter. The viewing region is partially transparent to pass a first portion of ambient scene light received through an ambient scene side of the eyepiece out an eye-ward side of the eyepiece. The first BS and the second BS are partially reflective and oriented to redirect offset portions of the ambient scene light received through the ambient scene side along the eyepiece towards the imaging region. The camera is positioned to capture both of the offset portions of the ambient scene light redirected by the first beam splitter and the second beam splitter.
-
Citations
23 Claims
-
1. An eyepiece for a head mounted display, the eyepiece comprising:
-
an imaging region including a camera; and a viewing region to be aligned with an eye of a user and including a first beam splitter (“
BS”
) and a second BS, wherein the viewing region is partially transparent to pass a first portion of ambient scene light received through an ambient scene side of the eyepiece out an eye-ward side of the eyepiece, wherein the first BS and the second BS are partially reflective and oriented to redirect offset portions of the ambient scene light received through the ambient scene side along the eyepiece towards the imaging region,wherein the camera is positioned to capture both of the offset portions of the ambient scene light redirected by the first BS and the second BS. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A head mounted display comprising:
-
an eyepiece including; an imaging region including an imaging source, a first beam splitter (“
BS”
), and a camera, the imaging source for launching computer generated image (“
CGI”
) light along a forward propagating path within the eyepiece;an end reflector disposed at an opposite end of the eyepiece from the imaging region to reflect the CGI back along a reverse propagation path within the eyepiece; and a viewing region to be aligned with an eye of a user, the viewing region disposed between the imaging region and the end reflector and including a second BS and a third BS, the viewing region to redirect the CGI light from the reverse propagation path out of an eye-ward side of the eyepiece, wherein the second and third BS of the viewing region each redirect offset portions of ambient scene light received through an ambient scene side of the eyepiece in the viewing region back to the imaging region and the first BS positioned to reflect the offset portions of the ambient light into the camera; and a frame assembly to support the eyepiece for wearing on a head of the user with the viewing region positioned in front of the eye of the user. - View Dependent Claims (12, 13, 14, 15, 16, 17)
-
-
18. A method of operation of a head mounted display (“
- HMD”
) eyepiece having an ambient scene side and an eye-ward side, the method comprising;passing a first portion of ambient scene light received at a viewing region of the HMD eyepiece through the ambient scene side and the eye-ward side so that the user can view the ambient scene light; redirecting a second portion of the ambient scene light as a first ambient scene image by a first beam splitter (“
BS”
) disposed within the viewing region, the first ambient scene image redirected down the HMD eyepiece between the ambient scene side and the eye-ward side towards an imaging region of the HMD eyepiece;redirecting a third portion of the ambient scene light as a second ambient scene image by a second BS disposed within the viewing region and offset from the first BS; coupling the first and second ambient scene images into a depth sensing camera mounted proximate to the imaging region of the HMD eyepiece; and determining a distance to an item portrayed in the first and second ambient scene images based upon an offset between the first and second ambient scene images. - View Dependent Claims (19, 20, 21, 22, 23)
- HMD”
Specification