Methods for optimizing retro-reflective display systems

Abstract

The present disclosure provides a display system comprising a retro-reflective screen having retro-reflective screen elements that reflect incident light. Each of the retro-reflective screen elements can include three intersecting planes. At least one of the three intersecting planes intersects an adjacent plane at an angle that is 90°, with an offset greater than 0°. The display system can further include at least one projector that projects the light onto the retro-reflective, which light characterizes an image or video. The retro-reflective screen having the retro-reflective screen elements can reflect the light at a cross-talk that is decreased by at least 10% and/or an intensity that is increased by at least 5%, as compared to a retro-reflective screen with retro-reflective screen elements having planes that each intersects an adjacent plane at an angle of 90°, without the offset.

1 . A display system, comprising:
 a retro-reflective screen having retro-reflective screen elements that reflect incident light, wherein each of the retro-reflective screen elements comprises three intersecting planes, wherein at least one of the three intersecting plane intersects an adjacent plane at an angle that is 90°, with an offset greater than 0°; and   at least one projector that (i) generates light characterizing an image or video and (ii) projects the light onto the retro-reflective,   wherein the retro-reflective screen having the retro-reflective screen elements reflects the light at an optical cross-talk that is less than 50%.   
     
     
         2 . The display system of  claim 1 , wherein the optical cross-talk is less than 30%. 
     
     
         3 . The display system of  claim 2 , wherein the optical cross-talk is less than 1%. 
     
     
         4 . The display system of  claim 1 , wherein the retro-reflective screen elements reflect the light at multiple return angles. 
     
     
         5 . The display system of  claim 1 , wherein the projector is mountable on a body of a viewer. 
     
     
         6 . The display system of  claim 1 , wherein the projector is mountable on a head of a viewer. 
     
     
         7 . A method for projecting an image or video for view by a viewer, comprising:
 (a) providing a retro-reflective screen having retro-reflective screen elements that reflect incident light, wherein each of the retro-reflective screen elements comprises three intersecting planes, wherein at least one of the three intersecting plane intersects an adjacent plane at an angle that is 90°, with an offset greater than 0°; and   (b) directing light characterizing an image or video from a projector to the retro-reflective screen, wherein the retro-reflective screen having the retro-reflective screen elements reflects the light at an optical cross-talk that is decreased by at least 10% and/or an intensity that is increased by a factor of at least 1.1, as compared to a retro-reflective screen with retro-reflective screen elements having planes that each intersects an adjacent plane at an angle of 90°, without the offset.   
     
     
         8 . The method of  claim 7 , wherein the retro-reflective screen reflects the light from the projector to the viewer without use of a beam splitter. 
     
     
         9 . The method of  claim 7 , wherein the projector is mounted on the body of the viewer. 
     
     
         10 . The method of  claim 9 , wherein the projector is mounted on a head of the viewer. 
     
     
         11 . The method of  claim 10 , further comprising providing the viewer with sound to complement the image or video. 
     
     
         12 . The method of  claim 7 , wherein the image or video is three-dimensional. 
     
     
         13 . A method for projecting an image or video for view by a viewer, comprising:
 (a) providing a retro-reflective screen having retro-reflective screen elements that reflect incident light, wherein each of the retro-reflective screen elements comprises three intersecting planes, wherein at least one of the three intersecting plane intersects an adjacent plane at an angle that is 90°, with an offset greater than 0°; and   (b) directing light characterizing an image or video from a projector to the retro-reflective screen, wherein the retro-reflective screen having the retro-reflective screen elements reflects the light at an optical cross-talk that is less than 50%.   
     
     
         14 . The method of  claim 13 , wherein the optical cross-talk is less than 30%. 
     
     
         15 . The method of  claim 14 , wherein the optical cross-talk is less than 1%. 
     
     
         16 . The method of  claim 13 , wherein the factor is at least 1.5. 
     
     
         17 . The method of  claim 13 , wherein the factor is at least 2. 
     
     
         18 . The method of  claim 13 , wherein the factor is at least 5. 
     
     
         19 . The method of  claim 13 , wherein the factor is at least 8. 
     
     
         20 . The method of  claim 13 , wherein the factor is at least 10. 
     
     
         21 .- 31 . (canceled)