Photo-chromic coating for optics
First Claim
1. A head mountable display (“
- HMD”
), comprising;
a display module for generating computer generated image (“
CGI”
) light;
an eyepiece including;
a viewing region to emit the CGI light out of the eyepiece along an eye-ward direction;
an input end peripherally located from the viewing region, the input end optically coupled to receive the CGI light into the eyepiece from the display module;
light bending optics disposed internal to the eyepiece to redirect the CGI light received at the input end out of the viewing region along the eye-ward direction;
an ambient scene side through which ambient scene light is received into the eyepiece;
an eye-ward side opposite the ambient scene side out of which the ambient scene light and the CGI light are passed along the eye-ward direction; and
a photo-chromic coating disposed on the ambient scene side and the eye-ward side, the photo-chromic coating to darken in the presence of UV light; and
a frame assembly to support the eyepiece and the display module for wearing on a head of a user with the viewing region positioned in front of an eye of the user.
2 Assignments
0 Petitions
Accused Products
Abstract
A head mounted display (HMD) includes a display module for generating CGI light, an eyepiece, and a frame assembly to support the eyepiece in front of an eye of the user. The eyepiece includes a viewing region to emit the CGI light along an eye-ward direction, an input end peripherally located from the viewing region and optically coupled to receive the CGI light into the eyepiece from the display module, and light bending optics to redirect the CGI light. The eyepiece further includes an ambient scene side through which ambient scene light is received into the eyepiece and an eye-ward side opposite the ambient scene side out of which the ambient scene light and the CGI light are passed along the eye-ward direction. A photo-chromic coating is disposed on the ambient scene and eye-ward sides.
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Citations
25 Claims
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1. A head mountable display (“
- HMD”
), comprising;a display module for generating computer generated image (“
CGI”
) light;an eyepiece including; a viewing region to emit the CGI light out of the eyepiece along an eye-ward direction; an input end peripherally located from the viewing region, the input end optically coupled to receive the CGI light into the eyepiece from the display module; light bending optics disposed internal to the eyepiece to redirect the CGI light received at the input end out of the viewing region along the eye-ward direction; an ambient scene side through which ambient scene light is received into the eyepiece; an eye-ward side opposite the ambient scene side out of which the ambient scene light and the CGI light are passed along the eye-ward direction; and a photo-chromic coating disposed on the ambient scene side and the eye-ward side, the photo-chromic coating to darken in the presence of UV light; and a frame assembly to support the eyepiece and the display module for wearing on a head of a user with the viewing region positioned in front of an eye of the user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- HMD”
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13. A method of fabricating an eyepiece for a head mounted display (“
- HMD”
), the method comprising;forming a viewing region of the eyepiece to emit computer generated image (“
CGI”
) light out of the eyepiece along an eye-ward direction, the viewing region including an ambient scene side through which ambient scene light is received into the eyepiece and an eye-ward side opposite the ambient scene side out of which the ambient scene light and CGI light are passed along the eye-ward direction;forming an input end of the eyepiece, the input end peripherally located from the viewing region, the input end for optically coupling to a display module to receive the CGI light into the eyepiece; and coating the ambient scene side and the eye-ward side of the eyepiece with a photo-chromic layer that darkens in the presence of UV light. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
- HMD”
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24. An eyepiece, comprising:
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a viewing region to emit image light out of the eyepiece along an eye-ward direction; an input end peripherally located from the viewing region, the input end configured to receive the image light into the eyepiece; light bending optics disposed internal to the eyepiece to redirect the image light received at the input end out of the viewing region along the eye-ward direction; an ambient scene side through which ambient scene light is received into the eyepiece; an eye-ward side opposite the ambient scene side out of which the ambient scene light and the image light are passed along the eye-ward direction; and a photo-chromic coating disposed on the ambient scene side and the eye-ward side, the photo-chromic coating configured to darken in the presence of UV light. - View Dependent Claims (25)
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Specification