Systems and methods to provide views of virtual content in an interactive space
A system to provide views of virtual content in an interactive space, e.g., an augmented reality environment, may comprise one or more of a light source, directional control device, variable power lens, beam steering device, optical element, and/or one or more physical processors. A light source may generate collimated light rays in accordance with virtual content to be perceived within a three-dimensional light field. A directional control device may controllable adjust direction of travel of collimated light rays toward a beam steering device. A variable power lens may be positioned to receive collimated light rays between a light source and a directional control device. A beam steering device may be configured to direct collimated light rays to locations on an optical element. An optical element may be configured to reflect collimated light rays in a focal plane of a perceived three-dimensional light field.
1. A system configured to provide views of virtual content in an interactive space, the system comprising:
a light source configured to generate light rays forming images of the virtual content; a directional control device configured to controllably adjust direction of travel of the light rays over time toward a beam steering device;
a variable power lens positioned to receive the light rays between the light source and the directional control device;
the beam steering device, configured to direct the light rays to locations on an optical element, individual locations on the beam steering device having corresponding locations on the optical element;
the optical element, configured to reflect the light rays directed at the optical element via the beam steering device to an eye of a user, the light rays forming the image of virtual content at a focal plane of a three-dimensional light field; and
one or more physical processors configured by machine-readable instructions to:
control the light source to generate the light rays in accordance with the virtual content to be perceived by the user at a range of the focal plane of the three-dimensional light field;
control the variable power lens to adjust a focal length of the variable power lens, wherein control of the variable power lens impacts the range of the virtual content within the three-dimensional light field; and
control the directional control device to adjust the direction of travel of the light rays toward the beam steering device, where control of the directional control device impacts a location of the virtual content on the focal plane perceived by the user.
2. The system of claim 1 , wherein the light source is an RGB laser.
3. The system of claim 1 , wherein the variable power lens is a liquid lens.
4. The system of claim 1 , wherein the directional control device is a micro-electrical-mechanical system.
5. The system of claim 1 , wherein the optical element comprises a reflective or semi-reflective region.
6. The system of claim 1 , wherein the one or more physical processors are further configured by machine-readable instructions to:
determine distance information conveying distance of one or more real-world objects along a present gaze direction of a user, the distance information conveying a first distance of a first real-world object along the gaze direction for a first period of time; and
control the variable power lens such that the range of the focal plane corresponds to the first distance during the first period of time.
7. The system of claim 6 , further comprising a gaze tracking device, the gaze tracking device configured to generate output signals conveying the gaze direction.
8. The system of claim 1 , wherein controlling the variable power lens to increase the focal length of the variable lens increases the perceived range of the focal plane, and controlling the variable power lens to decrease the focal length of the variable lens decreases the range of the focal plane.
9. The system of claim 1 , wherein one or more of the light source, the variable power lens, the directional control device, the beam steering device, the optical element, or one or more physical processors are incorporated into a head-mounted display.
10. The system of claim 1 , wherein the beam steering device is controllable.
11. A method of providing views of virtual content in an interactive space, the method comprising:
generating, using a light source, light rays;
controllably adjusting, using a directional control device, direction of travel of the light rays over time toward a beam steering device;
receiving, using a variable power lens, the light rays between the light source and the directional control device;
directing, using a beam steering device, the light rays to locations on an optical element, individual locations on the beam steering device having corresponding locations on the optical element;
reflecting into an eye of a user, using the optical element, the light rays directed at the optical element via the beam steering device in a focal plane of a three-dimensional light field;
controlling the light source to generate the light rays in accordance with the virtual content to be perceived by the user at a range of the focal plane of the three-dimensional light field;
controlling the variable power lens to adjust a focal length of the variable lens, wherein control of the variable power lens impacts the range of the focal plane within the three-dimensional light field; and
controlling the directional control device to adjust the direction of travel of the light rays toward the beam steering device, where control of the directional control device impacts a location of the virtual content on the focal plane perceived by the user.
12. The method of claim 11 , wherein the light source is an RGB laser.
13. The method of claim 11 , wherein the variable power lens is a liquid lens.
14. The method of claim 11 , wherein the directional control device is a micro-electrical-mechanical system.
15. The method of claim 11 , wherein the optical element comprises a reflective or semi-reflective region.
16. The method of claim 11 , further comprising:
determining distance information conveying distance of one or more real-world objects along a present gaze direction of a user, the distance information conveying a first distance of a first real-world object along the gaze direction for a first period of time; and
controlling the variable power lens such that the range of the focal plane corresponds to the first distance during the first period of time.
17. The method of claim 16 , further comprising generating output signals conveying the gaze direction.
18. The method of claim 11 , wherein controlling the variable power lens to increase the focal length of the variable lens increases the range of the focal plane, and controlling the variable power lens to decrease the focal length of the variable lens decreases the range of the focal plane.
19. The method of claim 1 , wherein one or more of the light source, the variable power lens, the directional control device, the beam steering device, or the optical element are incorporated into a head-mounted display.
20. The method of claim 11 , further comprising controlling the beam steering device.