Imperceptible Automatic Field-of-View Restrictors to Combat VR Sickness and Cybersickness

A virtual reality system for rendering a restricted field of view on a display, comprising:

• a virtual reality headset;
• at least one display operatively connected to the virtual reality headset;
• a field of view restricting system comprising:
• at least one field of view restrictor having a static or dynamic aperture disposed in proximity to a center of the field of view restrictor, the aperture having an inner radius and an outer radius defining an opening, wherein the opening is adapted to increase in opacity from transparent within the inner radius to opaque beyond the outer radius;
• and
• a controller operatively connected to the virtual reality headset, the display, and the field of view restricting system, and adapted to adjust the at least one field of view restrictor in real time.

A virtual reality system for reducing virtual reality sickness, comprising:

• a device;
• at least one display operatively connected to the device;
• an eye tracker configured to track a gaze of an operator, wherein the eye tracker is coupled to the virtual reality device;
• an eye-tracked field of view restricting system comprising:
• at least one field of view restrictor having a dynamic aperture, wherein the at least one field of view restrictor is configured to move as a function of the gaze of the operator;
• a controller operatively connected to the device, the display, the at least one eye tracker, and the eye tracked field of view restricting system, and adapted to adjust the at least one field of view restrictor in real time in response to the eye tracker;
• and
• an input tool operatively connected to the controller.