See-through computer display systems

Abstract

Aspects of the present invention relate to providing see-through computer display optics with improved content presentation.

1 . A method for controlling image presentation in a see-through head-worn display system with improved viewability for a user comprising:
 determining a brightness of a see-through view of a surrounding environment;   determining a brightness metric of an image to be displayed; and   adjusting an attribute of the image based on the brightness metric of the image and the brightness of the see-through view of the surrounding environment such that a predetermined combined brightness of the see-through view and the brightness of the image is presented to the user.   
     
     
         2 . The method of  claim 1 , further comprising determining a photo-responsive operating zone of an eye of the user and wherein the step of adjusting the attribute of the image is further based on the operating zone. 
     
     
         3 . The method of  claim 2 , wherein the step of adjusting the attribute of the content improves the user's see-through viewability. 
     
     
         4 . The method of  claim 2 , wherein the step of adjusting the attribute of the content improves the user's view of the image. 
     
     
         5 . The method of  claim 2  wherein the operating zone of the human eye is selected from at one of photopic, transition and scotopic vision. 
     
     
         6 . The method of  claim 1 , wherein the attribute includes changing a contrast in the image. 
     
     
         7 . The method of  claim 1 , wherein the attribute includes changing a color of objects in the image. 
     
     
         8 . The method of  claim 1 , wherein the attribute includes changing a color balance in the image. 
     
     
         9 . The method of  claim 1 , wherein the attribute includes changing a font size of text in the image. 
     
     
         10 . The method of  claim 1 , wherein the attribute includes changing the image to a monochrome image. 
     
     
         11 . The method of  claim 10 , wherein the monochrome image is a red image. 
     
     
         12 . The method of  claim 10 , wherein the monochrome image is a green image. 
     
     
         13 . The method of  claim 1 , wherein the head-worn display system further comprises a camera for capturing an image of the surrounding environment that includes at least a portion of the see-through view of the surrounding environment. 
     
     
         14 . The method of  claim 13 , further comprising the steps of: 
       analyzing the captured image to identify an attribute of the surrounding environment; and wherein the step of adjusting the attribute of the image includes adjusting the attribute further based on the identified attribute of the surrounding environment. 
     
     
         15 . The method of  claim 14 , wherein the attribute of the surrounding environment is a type of object. 
     
     
         16 . The method of  claim 14 , wherein the attribute of the surrounding environment is a range of color. 
     
     
         17 . The method of  claim 14 , wherein the attribute of the surrounding environment is a local range of color within a portion of the see-through view and the adjusted attribute of the image is a local color within a portion of the displayed image. 
     
     
         18 . The method of  claim 1 , wherein the head-worn display further comprises a camera for capturing images of the user's eye to determine a direction where the user is looking; and 
       wherein the step of determining the brightness of the see-through view of the surrounding environment involves determining the brightness of the see-through view of the surrounding environment in the direction. 
     
     
         19 . The method of  claim 18 , wherein the image is adjusted differently in a portion of the image that corresponds to the direction. 
     
     
         20 . The method of  claim 1  wherein the image to be displayed includes a user interface controlled by eye tracking and the image is adjusted to be brighter than the see-through view to reduce jittery eye movement. 
     
     
         21 . The method of  claim 20  wherein the image is adjusted to be 2× or more brighter than the see-through view. 
     
     
         22 .- 23 . (canceled)