Modifying light using freeform optics for augmented or virtual reality

Abstract

Configurations are disclosed for presenting virtual reality and augmented reality experiences to users. The system may comprise an image-generating source to provide one or more frames of image data in a time-sequential manner, a light modulator configured to transmit light associated with the one or more frames of image data, a substrate to direct image information to a user's eye, wherein the substrate houses a plurality of reflectors, a first reflector of the plurality of reflectors to reflect transmitted light associated with a first frame of image data at a first angle to the user's eye, and a second reflector to reflect transmitted light associated with a second frame of the image data at a second angle to the user's eye.

What is claimed is: 
     
         1 . A system comprising:
 an image generating source to provide one or more frames of image data to be presented to a user;   a display system to provide light associated with the one or more frames of image data; and   a free form optical element to modify the provided light and deliver the light to the user, wherein the freeform optic includes reflective coating, wherein the display system is configured to illuminate the freeform optical element with light such that a wavelength of the light matches a corresponding wavelength of the reflective coating.   
     
     
         2 . The system of  claim 1 , wherein one or more freeform optical elements are tiled in relation to one another. 
     
     
         3 . The system of  claim 2 , wherein the one or more freeform optical elements are tiled along a z axis. 
     
     
         4 . The system of  claim 1 , further comprising one or more optical elements that further modify the light and deliver the light to the user. 
     
     
         5 . The system of  claim 1 , further comprising an accommodation tracking module to determine an accommodation of the user's eyes. 
     
     
         6 . The system of  claim 5 , wherein the light is modified based at least in part on the determined accommodation of the user's eyes. 
     
     
         7 . The system of  claim 1 , wherein the freeform optical element comprises is a TIR freeform optic. 
     
     
         8 . The system of  claim 1 , wherein the freeform optical element comprises a wedge optic. 
     
     
         9 . The system of  claim 1 , wherein the freeform optical element comprises a conical element. 
     
     
         10 . The system of  claim 1  implemented as a method.