Dual composite light field device
First Claim
1. An apparatus comprising:
- a processor;
a first waveguide having opposed planar input and output faces;
a first diffractive optical element (DOE) formed across the first waveguide, the first DOE configured to couple first light into the first waveguide, wherein the first waveguide is configured to direct the first light via total internal reflection to an exit location of the first waveguide;
a second waveguide having opposed planar input and output faces, the second waveguide aligned with and parallel to the first waveguide;
a light sensor having an input positioned adjacent to the exit location of the first waveguide to capture the first light exiting therefrom and generate an output signal corresponding thereto, wherein the angle and position of the light sensor with respect to the exit location of the first waveguide are movable and are controllable by the processor;
a light generator configured to inject second light into the second waveguide, wherein the second waveguide is configured to direct the second light via total internal reflection to an output face of the second waveguide; and
a darkening layer disposed between the first waveguide and the second waveguide, the darkening layer configured to reduce a brightness of a third light originating from outside the apparatus.
3 Assignments
0 Petitions
Accused Products
Abstract
An apparatus is disclosed for capturing image information. The apparatus includes a waveguide having opposed planar input and output faces. A diffractive optical element (DOE) is formed across the waveguide. The DOE is configured to couple a portion of the light passing through the waveguide into the waveguide. The light coupled into the waveguide is directed via total internal reflection to an exit location on the waveguide. The apparatus further includes a light sensor having an input positioned adjacent the exit location of the waveguide to capture light exiting therefrom and generate output signals corresponding thereto. A processor determines the angle and position of the coupled light with respect to the input face of the waveguide based on the output signals.
-
Citations
17 Claims
-
1. An apparatus comprising:
-
a processor; a first waveguide having opposed planar input and output faces; a first diffractive optical element (DOE) formed across the first waveguide, the first DOE configured to couple first light into the first waveguide, wherein the first waveguide is configured to direct the first light via total internal reflection to an exit location of the first waveguide; a second waveguide having opposed planar input and output faces, the second waveguide aligned with and parallel to the first waveguide; a light sensor having an input positioned adjacent to the exit location of the first waveguide to capture the first light exiting therefrom and generate an output signal corresponding thereto, wherein the angle and position of the light sensor with respect to the exit location of the first waveguide are movable and are controllable by the processor; a light generator configured to inject second light into the second waveguide, wherein the second waveguide is configured to direct the second light via total internal reflection to an output face of the second waveguide; and a darkening layer disposed between the first waveguide and the second waveguide, the darkening layer configured to reduce a brightness of a third light originating from outside the apparatus. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A method comprising:
-
coupling, via a first diffractive optical element (DOE), first light into a first waveguide having opposed planar input and output faces, the first waveguide configured to direct the first light via total internal reflection to an exit location of the first waveguide; capturing, via a light sensor, the first light from the first waveguide; generating an output signal corresponding to the first light captured via the light sensor; injecting, via a light generator, second light into a second waveguide having opposed planar input and output faces, the second waveguide configured to direct the second light via total internal reflection to an output face of the second waveguide, wherein; the first DOE is formed across the first waveguide, the second waveguide is aligned with and parallel to the first waveguide, the light sensor has an input positioned adjacent to the exit location of the first waveguide, and the angle and position of the light sensor with respect to the exit location of the first waveguide are movable and controllable by a processor. - View Dependent Claims (8, 9, 10, 11, 12, 13)
-
-
14. An apparatus comprising:
-
a processor; a first waveguide having opposed planar input and output faces; a first diffractive optical element (DOE) formed across the first waveguide, the first DOE configured to couple light into the first waveguide, wherein the light coupled into the first waveguide is directed via total internal reflection to an exit location of the first waveguide; and a light sensor having an input positioned adjacent to the exit location of the first waveguide to capture light exiting therefrom and generate output signals corresponding thereto, wherein the angle and position of the light sensor with respect to the exit location of the first waveguide are movable and are controllable by the processor. - View Dependent Claims (15, 16, 17)
-
Specification