Display systems with collection optics for disparity sensing detectors

Abstract

According to examples, a display system may include a disparity sensing detector, collection optics, and a first lens assembly. The first lens assembly may include a first projector to output a first display light associated with a first image and a first waveguide for propagating the first display light to the collection optics, in which the collection optics is to direct the first display light to the disparity sensing detector. The display system may also include a second lens assembly including a second projector to output a second display light associated with a second image and a second waveguide for propagating the second display light to the collection optics, in which the collection optics is to direct the second display light to the disparity sensing detector.

1 .- 20 . (canceled) 
     
     
         21 . A display system, comprising:
 a first lens assembly comprising a first projector to output a first display light corresponding to a first image;   a second lens assembly comprising a second projector to output a second display light corresponding to a second image;   a disparity sensing detector to detect a disparity between the first display light from the first projector and the second display light from the second projector; and   a controller to:
 determine whether the disparity exceeds a disparity threshold level, and 
 in response to the disparity exceeding the disparity threshold level, adjust at least one of the first projector or the second projector to cause the first display light outputted from the first projector and the second display light outputted from the second projector to be aligned with each other. 
   
     
     
         22 . The display system of  claim 21 , further comprising:
 collection optics to receive the first and second display lights and direct the first and second display lights to the disparity sensing detector.   
     
     
         23 . The display system of  claim 22 , wherein the collection optics comprise a light directing device and a focus lens,
 wherein the light directing device is to direct the first and second display lights received from the first and second projectors to the focus lens, and   wherein the focus lens is to focus the first and second display lights received from the light directing device to the disparity sensing detector.   
     
     
         24 . The display system of  claim 22 , further comprising:
 a frame to be worn as eyewear by a user, wherein the disparity sensing detector and the collection optics are located near a center of the frame.   
     
     
         25 . The display system of  claim 24 , wherein the first lens assembly is located on a first side of the frame and the second lens assembly is located on a second side of the frame. 
     
     
         26 . The display system of  claim 24 , wherein the frame further comprises:
 a first temple arm, wherein the first projector is located near or on the first temple arm; and   a second temple arm, wherein the second projector is located near or on the second temple arm.   
     
     
         27 . The display system of  claim 21 , further comprising:
 a first display to display the first display light corresponding to the first image; and   a second display to display the second display light corresponding to the second image,   wherein, to detect the disparity between the first display light and the second display light, the disparity sensing detector is to:
 detect locations at which the first image is displayed on the first display and the second image is displayed on the second display, and 
 determine whether a difference exists between the detected locations. 
   
     
     
         28 . The display system of  claim 21 , wherein, to adjust at least one of the first projector or the second projector, the controller is to cause the first projector to shift the first display light or the second projector to shift the second display light. 
     
     
         29 . The display system of  claim 21 , wherein:
 the first lens assembly further comprises a first waveguide configuration comprising a first set of gratings to direct the first display light from the first projector to a first display to be viewed by a user, and   the second lens assembly further comprises a second waveguide comprising a second set of gratings to direct the second display light from the second projector to a second display to be viewed by the user.   
     
     
         30 . A wearable eyewear comprising:
 a disparity sensing detector;   a controller;   a first lens assembly comprising a first projector to output a first display light corresponding to a first image for viewing by a user of the wearable eyewear;   a second lens assembly comprising a second projector to output a second display light corresponding to a second image for viewing by the user; and   a bridge connecting the first lens assembly and the second lens assembly, the bridge supporting the disparity sensing detector and the controller,   wherein the disparity sensing detector is to detect a disparity between the first display light from the first projector and the second display light from the second projector, and   wherein the controller is to:
 determine whether the disparity exceeds a disparity threshold level, and 
 in response to the disparity exceeding the disparity threshold level, adjust at least one of the first projector or the second projector to cause the first display light outputted from the first projector and the second display light outputted from the second projector to be aligned with each other. 
   
     
     
         31 . The wearable eyewear of  claim 30 , further comprising:
 a frame including the first lens assembly, the second lens assembly, and the bridge;   a first temple arm hingedly connected to a first side of the frame, wherein the first projector is located near or on the first temple arm; and   a second temple arm hingedly connected to a second side of the frame, wherein the second projector is located near or on the second temple arm.   
     
     
         32 . The wearable eyewear of  claim 30 , further comprising: collection optics, located on the bridge, comprising a light directing device and a focus lens,
 wherein the light directing device is to direct the first and second display lights received from the first and second projectors to the focus lens, and   wherein the focus lens is to focus the first and second display lights received from the light directing device to the disparity sensing detector.   
     
     
         33 . The wearable eyewear of  claim 32 , wherein the light directing device comprises a prism or a reflector. 
     
     
         34 . The wearable eyewear of  claim 30 , further comprising:
 a first display to display the first display light corresponding to the first image; and   a second display to display the second display light corresponding to the second image,   wherein the disparity sensing detector is to detect locations at which the first image and the second image are respectively displayed on the first display and the second display, and determine whether a difference exists between the detected locations, and cause the controller to compensate the difference.   
     
     
         35 . The wearable eyewear of  claim 34 , further comprising:
 a first waveguide configuration comprising a first set of gratings to direct the first display light from the first projector to the first display, and   a second waveguide comprising a second set of gratings to direct the second display light from the second projector to the second display.   
     
     
         36 . A method for operating a display system, comprising:
 providing a first lens assembly comprising a first projector to output a first display light corresponding to a first image;   providing a second lens assembly comprising a second projector to output a second display light corresponding to a second image;   providing a disparity sensing detector to detect a disparity between the first display light and the second display light; and   providing a controller for:
 determining whether the disparity exceeds a disparity threshold level, and 
 in response to the disparity exceeding the disparity threshold level, adjusting at least one of the first projector or the second projector to cause the first display light outputted from the first projector and the second display light outputted from the second projector to be aligned with each other. 
   
     
     
         37 . The method of  claim 36 , wherein adjusting at least one of the first projector or the second projector comprises:
 causing the first projector to shift the first display light or the second projector to shift the second display light.   
     
     
         38 . The method of  claim 36 , further comprising:
 providing a first waveguide configuration comprising a first set of gratings to direct the first display light from the first projector to a first display to be viewed by a user, and   providing a second waveguide comprising a second set of gratings to direct the second display light from the second projector to a second display to be viewed by the user.   
     
     
         39 . The method  claim 36 , further comprising:
 providing collection optics to receive the first and second display lights and direct the first and second display lights to the disparity sensing detector.   
     
     
         40 . The method  claim 36 , further comprising:
 providing a first display to display the first display light corresponding to the first image; and   providing a second display to display the second display light corresponding to the second image,   wherein providing a disparity sensing detector to detect the disparity between the first display light and the second display light comprises:
 detecting, by the disparity sensing detector, locations at which the first image is displayed on the first display and the second image is displayed on the second display, and 
 determining whether a difference exists between the detected locations.