System for preventing motion sickness resulting from virtual reality or augmented reality
A system for preventing motion sickness resulting from virtual reality or augmented reality is disclosed herein. In one embodiment, the system includes a virtual reality or augmented reality headset configured to be worn by a user, the virtual reality or augmented reality headset configured to create an artificial environment and/or immersive environment for the user; at least one fluidic lens disposed between an eye of the user and a screen of the virtual reality or augmented reality headset; and a fluid control system operatively coupled to the at least one fluidic lens. In another embodiment, the system includes at least one tunable prism disposed between an eye of the user and a screen of the virtual reality or augmented reality headset, the at least one tunable prism configured to correct a convergence problem associated with the eye of the user.
1. A system for preventing motion sickness resulting from virtual reality or augmented reality, comprising:
a virtual reality or augmented reality headset configured to be worn by a user, the virtual reality or augmented reality headset configured to create an artificial environment and/or immersive environment for the user;
at least one fluidic lens disposed between an eye of the user and a screen of the virtual reality or augmented reality headset, the at least one fluidic lens having a chamber that receives a fluid therein, the at least one fluidic lens configured to correct the refractive errors of the eye of the user;
a fluid control system operatively coupled to the at least one fluidic lens, the fluid control system configured to insert an amount of the fluid into the chamber of the at least one fluidic lens, or remove an amount of the fluid from the chamber of the at least one fluidic lens, in order to change the shape of the at least one fluidic lens in accordance with the amount of fluid therein;
a Shack-Hartmann sensor assembly operatively coupled to the fluid control system, the Shack-Hartmann sensor assembly by means of the fluid control system configured to automatically control the amount of the fluid in the chamber of the at least one fluidic lens, thereby automatically correcting the refractive errors of the eye of the user so that images displayed on the screen of the virtual reality or augmented reality headset are in focus for the user; and
a data processing device operatively coupled to the fluid control system and the Shack-Hartmann sensor assembly, wherein the data processing device is configured to control the fluid control system based upon one or more output signals from the Shack-Hartmann sensor assembly.
2. The system according to claim 1 , wherein the at least one fluidic lens is disposed inside the virtual reality or augmented reality headset.
3. The system according to claim 1 , wherein the fluid control system comprises a pump and one or more fluid distribution lines, at least one of the one or more fluid distribution lines fluidly coupling the pump to the at least one fluidic lens so that the pump is capable of adjusting refractive power of the at least one fluidic lens.
4. The system according to claim 3 , wherein the data processing device is configured to control an operation of the pump of the fluid control system based upon the one or more output signals from the Shack-Hartmann sensor assembly.
5. The system according to claim 4 , wherein the Shack-Hartmann sensor assembly comprises a charge-coupled device (CCD) array and a lenslet array, and wherein the charge-coupled device (CCD) array of the Shack-Hartmann sensor assembly is operatively coupled to the data processing device.
6. The system according to claim 5 , wherein light is reflected back from the eye of the user, and wherein the lenslet array is disposed in a path of the reflected light entering the Shack-Hartmann sensor assembly.
7. The system according to claim 6 , further comprising a dichroic mirror disposed in the path of the reflected light between the at least one fluidic lens and the lenslet array.
8. The system according to claim 1 , wherein the at least one fluidic lens disposed between the eye of the user and the screen of the virtual reality or augmented reality headset comprises a plurality of fluidic lenses disposed between the eye of the user and the screen of the virtual reality or augmented reality headset, each of the plurality of fluidic lenses having a respective chamber that receives a fluid therein.
9. The system according to claim 8 , wherein the plurality of fluidic lenses disposed between the eye of the user and the screen of the virtual reality or augmented reality headset comprises three fluidic lenses disposed between the eye of the user and the screen of the virtual reality or augmented reality headset, each of the three fluidic lenses having a respective chamber that receives a fluid therein, and the three fluidic lenses including a spherical lens, a first cylindrical lens, and a second cylindrical lens.
10. The system according to claim 9 , wherein the spherical lens is disposed in a first plane, the first cylindrical lens is disposed in a second plane, and the second cylindrical lens is disposed in a third plane, each of the first, second, and third planes being oriented generally parallel to one another, and the first plane of the spherical lens being disposed closer to the eye of the user than the second plane of the first cylindrical lens and the third plane of the second cylindrical lens.
11. The system according to claim 10 , wherein the first cylindrical lens has a first axis and the second cylindrical lens has a second axis, the first axis of the first cylindrical lens being disposed at an angle of approximately 45 degrees relative to the second axis of the second cylindrical lens.
12. The system according to claim 1 , further comprising at least one displaceable prism, the at least one displaceable prism configured to divert light from images displayed on the screen of the virtual reality or augmented reality headset to each eye of the user independently so that a single stereoscopic image is formed.
13. The system according to claim 1 , further comprising an eye movement tracking device configured to track the eye movement of the user and/or one or more accelerometers configured to track the head movement of the user, the eye movement tracking device and/or the one or more accelerometers being operatively coupled to the virtual reality or augmented reality headset via the data processing device so that the display of images on the screen of the virtual reality or augmented reality headset is capable of being automatically adjusted in accordance with the eye movement and/or head movement of the user.
14. A system for preventing motion sickness resulting from virtual reality or augmented reality, comprising:
a virtual reality or augmented reality headset configured to be worn by a user, the virtual reality or augmented reality headset configured to create an artificial environment and/or immersive environment for the user; and
at least one tunable prism disposed between an eye of the user and a screen of the virtual reality or augmented reality headset, the at least one tunable prism configured to correct a convergence problem associated with the eye of the user, the at least one tunable prism comprising a first transparent plate, a second transparent plate, and a transparent balloon or transparent ball disposed between the first and second transparent plates; a tilt of at least one of the first and second transparent plates being configured to be modified so as to adjust a convergence of the eye of the user, the second transparent plate comprising a central circular or rectangular aperture formed therein, and the transparent balloon or the transparent ball configured to be selectively deformed so that a portion of the transparent balloon or the transparent ball protrudes outwardly through the circular or rectangular aperture of the second transparent plate so as to form a spherical or astigmatic lens.
15. The system according to claim 14 , further comprising at least one pinpoint transitional lens for correcting a refractive power of the eye of the user for any distance, the at least one pinpoint transitional lens comprising a central region having a diameter between 1 and 4 millimeters that is free of a light-activated chromophore, and a peripheral region surrounding the central region that contains the light-activated chromophore so that the peripheral region becomes darker when activated by light.
16. The system according to claim 14 , wherein the first transparent plate has a magnetic material disposed on the peripheral edge thereof, and the second transparent plate has a series of activatable electromagnets disposed on the peripheral edge thereof; and wherein the tilt of the first transparent plate relative to the second transparent plate is modified by selectively activating the electromagnets on the periphery of the second transparent plate.
17. The system according to claim 16 , wherein the at least one tunable prism comprises the transparent ball, and the transparent ball is configured to be selectively deformed by selectively activating the electromagnets on the periphery of the second transparent plate so that a portion of the transparent ball protrudes outwardly through the circular or rectangular aperture of the second transparent plate so as to form the spherical or astigmatic lens.
18. The system according to claim 16 , wherein the at least one tunable prism comprises the transparent balloon, and the transparent balloon is configured to be selectively deformed by selectively activating the electromagnets on the periphery of the second transparent plate so that a portion of the transparent balloon protrudes outwardly through the circular or rectangular aperture of the second transparent plate so as to form the spherical or astigmatic lens.
19. The system according to claim 14 , wherein the at least one tunable prism comprises the transparent balloon, the transparent balloon configured to be filled with a fluid so that a portion of the transparent balloon protrudes outwardly through the circular or rectangular aperture of the second transparent plate so as to form the spherical or astigmatic lens.
20. The system according to claim 14 , wherein the at least one tunable prism further comprises a spring coil disposed between the first and second transparent plates.
21. The system according to claim 20 , wherein the first transparent plate has a magnetic material disposed on the peripheral edge thereof, and the second transparent plate has a series of activatable electromagnets disposed on the peripheral edge thereof;
wherein the tilt of the first transparent plate relative to the second transparent plate is modified by selectively activating the electromagnets on the periphery of the second transparent plate; and
wherein the spring coil is configured to return the first transparent plate to a parallel position relative to the second transparent plate when the electromagnets are not activated.
22. The system according to claim 21 , wherein the transparent balloon or transparent ball is disposed inside the spring coil and between the first and second transparent plates.
23. A system for preventing motion sickness resulting from virtual reality or augmented reality, comprising:
a virtual reality or augmented reality headset configured to be worn by a user, the virtual reality or augmented reality headset configured to create an artificial environment and/or immersive environment for the user;
at least one tunable prism disposed between an eye of the user and a screen of the virtual reality or augmented reality headset, the at least one tunable prism configured to correct a convergence problem associated with the eye of the user; and
at least one pinpoint transitional lens for correcting a refractive power of the eye of the user for any distance, the at least one pinpoint transitional lens comprising a central region having a diameter between 1 and 4 millimeters that is free of a light-activated chromophore, and a peripheral region surrounding the central region that contains the light-activated chromophore so that the peripheral region becomes darker when activated by light.