Compact architecture for near-to-eye display system
First Claim
1. An eyepiece, comprising:
- an eyepiece body, including;
an input lens positioned to couple display light into the eyepiece body along a forward propagation path;
a concave end reflector disposed at an opposite end of the eyepiece body from the input lens to reflect the display light back along a reverse propagation path within the eyepiece body; and
a viewing region disposed between the input lens and the concave end reflector and including a partially reflective surface, the partially reflective surface to redirect at least a portion of the display light traveling along the reverse propagation path out of an eye-ward side of the eyepiece body along an emission path,wherein the partially reflective surface is obliquely angled relative to the eye-ward side and the concave end reflector is titled relative to a top or bottom surface of the eyepiece body to collectively cause the emission path of the display light to be oblique to a first normal vector of the eye-ward side in two orthogonal dimensions,wherein the input lens is tilted such that a second normal vector from a center point of the input lens is obliquely angled relative to the top or bottom surface of the eyepiece body.
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Accused Products
Abstract
An eyepiece body of an eyepiece includes an input lens positioned to couple display light into the eyepiece body along a forward propagation path, a concave end reflector disposed at an opposite end of the eyepiece body from the input lens to reflect the display light back along a reverse propagation path, and a viewing region including a partially reflective surface that redirects at least a portion of the display light traveling along the reverse propagation path out of an eye-ward side of the eyepiece body along an emission path. The partially reflective surface is obliquely angled relative to the eye-ward side and the concave end reflector is titled relative to a top or bottom surface of the eyepiece body to collectively cause the emission path of the display light to be oblique to a normal vector of the eye-ward side in two orthogonal dimensions.
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Citations
20 Claims
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1. An eyepiece, comprising:
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an eyepiece body, including; an input lens positioned to couple display light into the eyepiece body along a forward propagation path; a concave end reflector disposed at an opposite end of the eyepiece body from the input lens to reflect the display light back along a reverse propagation path within the eyepiece body; and a viewing region disposed between the input lens and the concave end reflector and including a partially reflective surface, the partially reflective surface to redirect at least a portion of the display light traveling along the reverse propagation path out of an eye-ward side of the eyepiece body along an emission path, wherein the partially reflective surface is obliquely angled relative to the eye-ward side and the concave end reflector is titled relative to a top or bottom surface of the eyepiece body to collectively cause the emission path of the display light to be oblique to a first normal vector of the eye-ward side in two orthogonal dimensions, wherein the input lens is tilted such that a second normal vector from a center point of the input lens is obliquely angled relative to the top or bottom surface of the eyepiece body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A head wearable display for providing display light to an eye of a user, the head wearable display, comprising:
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a display panel for generating display light; an eyepiece body, including; an input lens positioned to couple the display light into the eyepiece body along a forward propagation path; a concave end reflector disposed at an opposite end of the eyepiece body from the input lens to reflect the display light back along a reverse propagation path within the eyepiece body; and a viewing region disposed between the input lens and the concave end reflector and including a partially reflective surface, the partially reflective surface to redirect at least a portion of the display light traveling along the reverse propagation path out of an eye-ward side of the eyepiece body along an emission path; and a frame assembly to support the eyepiece body and the display panel for wearing on a head of the user with the viewing region positioned above the eye of the user, wherein the partially reflective surface is obliquely angled relative to the eye-ward side and the concave end reflector is titled relative to a top or bottom surface of the eyepiece body to collectively cause the emission path of the display light to be oblique to a first normal vector of the eye-ward side in two orthogonal dimensions. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification