Near-eye-display with rapid spherical image scanning
View Patent ↗A near-eye display that employs rapid spherical image scanning using liquid crystal retarder with concentric imaging and optical elements comprising a display with spherically curved concave image surface topped with polarizer; a spherically curved liquid crystal retarder composite reflector having a see-thru mirror topped at the concave side with electronically controlled liquid crystal retarder strips; a see-thru spherically curved mirror-polarizer composite with mirror at the convex side and polarizer at the concave side; a frame to support, protect the device, and mount the device to the head.
1. A method for a near eye display device including: electrically coupling a first plurality of liquid crystal retarders to a controller;
electrically coupling a second plurality of liquid crystal retarders to the controller;
physically coupling the first and second plurality of liquid crystal retarders to a see-thru mirror and a polarizer, and
arranging each one of the first plurality of liquid crystal retarders and the second plurality of liquid crystal retarders in an alternating manner, so that only one of the first plurality of liquid crystal retarders is arranged between two of the second plurality of liquid crystal retarders, and
switching off the first plurality of liquid crystal retarders to remain transparent and switching on the second plurality of liquid crystal retarders to become quarter wave retarders by the controller, or switching off the second plurality of liquid crystal retarders to remain transparent and switching on the first plurality of liquid crystal retarders to become quarter wave retarders by the controller.
2. The method of claim 1 further including:
an optical occluder disposed in optical alignment with the first and second plurality of liquid crystal retarders.
3. The method of claim 1 wherein the see-thru mirror and the polarizer are in part, spherically concave.
4. The method of claim 1 wherein the near eye display device includes an image source, the image source disposed in optical alignment with the first and second plurality of liquid crystal retarders.