Video Projection System And Method For Synchronizing Images

Abstract

A video projection system and method for synchronizing images are provided. An image source provides a video signal with at least two streams of sequential images. A color switching device is operable to present fundamental colors and one or more non-fundamental colors at least once during each of a plurality of phases of the video signal. A light processing element controls projection of light with the two streams of sequential images sequentially through the presentation of the colors of each phase. An eye-switching adjustment element modifies a timing of the colors presented by aligning with the non-fundamental color, an unstable transition phase between different states of an eye-switching device to which the video signal is provided. The eye-switching adjustment element also modifies the video signal to deliver the images synchronously with the eye-switching device.

What is claimed is: 
     
         1 . A video projection system for synchronizing presentation of a plurality of images projected onto a display, comprising:
 an image source to provide a video signal comprising at least two streams of sequential images;   a color switching device operable to present fundamental colors and one or more non-fundamental colors at least once during each of a plurality of phases of the video signal;   a light processing element to control projection of light comprising the two streams of sequential images sequentially through the presentation of the colors of each phase; and   an eye-switching adjustment element to modify a timing of the colors presented by aligning with the non-fundamental color, an unstable transition phase between different states of an eye-switching device to which the video signal is provided, and to modify the video signal to deliver the images of the video signal synchronously with the eye-switching device.   
     
     
         2 . A video projection system according to  claim 1 , wherein each phase of the video signal is associated with one of left and right sides of the eye-switching device and the left side phases and right side phases are uniform. 
     
     
         3 . A video projection system according to  claim 2 , wherein the video signal is modified by mixing the fundamental colors from different phases, the mixing comprising collecting for each phase one of fundamental colors designated for the left side and fundamental colors designated for the right side. 
     
     
         4 . A video projection system according to  claim 3 , wherein the ordering comprises one or more of promoting at least one out-of-phase fundamental color into an adjacent phase and demoting at least one in-phase fundamental color into an adjacent phase. 
     
     
         5 . A video projection system according to  claim 1 , wherein the right side phases are presented to the right side of the viewing device while the left side is opaque and the left side phases are presented to the left side while the right side is transitioned to opaque. 
     
     
         6 . A video projection system according to  claim 1 , further comprising:
 a color wheel comprised in the color switching device and divided into a plurality of light transmissive sections that correspond to each of the fundamental colors.   
     
     
         7 . A video projection system according to  claim 6 , further comprising one or more of:
 at least one light transmissive section comprised in the color wheel that corresponds to a non-fundamental color; and   at least one light non-transmissive section comprised in the color wheel that comprises a physical light blocking barrier.   
     
     
         8 . A video projection system according to  claim 1 , wherein the eye-switching device is operable to obstruct and permit viewing of the image on a display by a user. 
     
     
         9 . A video projection system according to  claim 8 , further comprising:
 a left eye viewing lens and a right eye viewing lens that are both comprised in the wearable eye-switching device and configured to be separately controlled to obstruct and permit viewing of the display through the viewing device.   
     
     
         10 . A video projection system according to  claim 1 , wherein the eye-switching adjustment element is one of a standalone device, built into the image source, and loaded into the image source. 
     
     
         11 . A method for synchronizing presentation of a plurality of images projected onto a display, comprising:
 receiving a video signal comprising at least two streams of sequential images;   utilizing a color switching device operable to present colors comprising fundamental colors and one or more non-fundamental colors at least once during each of a plurality of phases of the video signal;   controlling projection of light comprising the two streams of sequential images sequentially through the presentation of the colors of each phase;   modifying a timing of the colors presented by aligning with the non-fundamental color, an unstable transition phase between different states of an eye-switching device to which the video signal is provided; and   modifying the video signal to deliver the images of the video signal synchronously with the eye-switching device.   
     
     
         12 . A method according to  claim 11 , wherein each phase of the video signal is associated with one of left and right sides of the eye-switching device and the left side phases and right side phases are uniform. 
     
     
         13 . A method according to  claim 12 , further comprising:
 adjusting the video signal during the modification by mixing the fundamental colors from different phases, the mixing comprising ordering for each phase one of fundamental colors designated for the left side together and fundamental colors designated for the right side together.   
     
     
         14 . A method according to  claim 13 , wherein the ordering comprises at least one of:
 promoting at least one out-of-phase fundamental color into an adjacent phase; and   demoting one or more in-phase fundamental colors into an adjacent phase.   
     
     
         15 . A method according to  claim 11 , wherein the right side phases are presented to the right side of the viewing device while the left side is opaque and the left side phases are presented to the left side while the right side is transitioned to opaque. 
     
     
         16 . A method according to  claim 11 , further comprising:
 maintaining a color wheel comprised in the color switching device and divided into a plurality of light transmissive sections that correspond to each of the fundamental colors.   
     
     
         17 . A method according to  claim 16 , wherein the color wheel comprises at least one light transmissive section that corresponds to a non-fundamental color and at least one light non-transmissive section that comprises a physical light blocking barrier. 
     
     
         18 . A method according to  claim 11 , wherein the eye-switching device is operable to obstruct and permit viewing of the image on a display by a user. 
     
     
         19 . A method according to  claim 18 , further comprising:
 providing a left eye viewing lens and a right eye viewing lens that are both comprised in the wearable eye-switching device and configured to be separately controlled to obstruct and permit viewing of the display through the viewing device.   
     
     
         20 . A method according to  claim 11 , wherein the eye-switching adjustment element is one of a standalone device, built into the image source, and loaded into the image source.