Measuring content brightness in head worn computing
Aspects of the present invention relate to methods and systems for measuring and managing the brightness of digital content in a field of view of a head-worn computer.
1. A system comprising:
a wearable display;
a light trap proximate the wearable display; and
one or more processors configured to perform a method comprising:
presenting content via the wearable display;
measuring, via a sensor associated with the light trap, a brightness level of a reflected portion of the content presented via the wearable display; and
adjusting a brightness of the content based on a difference between the measured brightness level and a pre-determined display brightness level,
wherein the reflected portion of content is reflected by an eye of a user of the wearable display.
2. The system of claim 1 , further comprising a light source configured to illuminate the wearable display,
wherein adjusting the brightness of the content comprises adjusting a brightness of the light source.
3. The system of claim 2 , wherein adjusting the brightness of the content comprises compensating for a fluctuation in power delivered to the wearable display.
4. The system of claim 1 , the method further comprising measuring a brightness level of a surrounding environment proximate the wearable display.
5. The system of claim 4 , wherein adjusting the brightness of the content comprises adjusting the brightness of the content based on the measured brightness level of the surrounding environment.
6. The system of claim 5 , wherein adjusting the brightness of the content comprises adjusting the brightness of the content based on a difference between the measured brightness level of the surrounding environment and a pre-determined surrounding environment brightness level.
7. The system of claim 1 , wherein the reflected portion of the content intersects a line of sight of the user.
8. The system of claim 1 , wherein adjusting the brightness of the content comprises changing one or more of a tinted layer, a photochromic layer, and an optical density layer.
9. The system of claim 1 , wherein adjusting the brightness of the displayed content comprises adjusting the brightness of the displayed content based on one or more of a change in a gaze direction of the user, a change in a vertical gaze angle of the user, and a change in a focal depth of the user.
10. The system of claim 1 , further comprising an accelerometer, wherein:
the method further comprises measuring, via the accelerometer, one or more of a head movement of the user and a change in a movement speed of the user, and
adjusting the brightness of the content comprises adjusting the brightness of the content based on said measuring.
11. A non-transitory computer-readable medium storing instructions which, when executed by one or more processors, cause the one or more processors to perform a method comprising:
presenting content via a wearable display;
measuring, via a sensor associated with a light trap proximate the wearable display, a brightness level of a reflected portion of the content presented via the wearable display; and
adjusting a brightness of the content based on a difference between the measured brightness level and a pre-determined display brightness level,
wherein the reflected portion of content is reflected by an eye of a user of the wearable display.
12. The non-transitory computer-readable medium of claim 11 , wherein adjusting the brightness of the content comprises adjusting a brightness of a light source configured to illuminate the wearable display.
13. The non-transitory computer-readable medium of claim 12 , wherein adjusting the brightness of the content comprises compensating for a fluctuation in power delivered to the wearable display.
14. The non-transitory computer-readable medium of claim 11 , the method further comprising measuring a brightness level of a surrounding environment proximate the wearable display.
15. The non-transitory computer-readable medium of claim 14 , wherein adjusting the brightness of the content comprises adjusting the brightness of the content based on the measured brightness level of the surrounding environment.
16. The non-transitory computer-readable medium of claim 15 , wherein adjusting the brightness of the content comprises adjusting the brightness of the content based on a difference between the measured brightness level of the surrounding environment and a pre-determined surrounding environment brightness level.
17. The non-transitory computer-readable medium of claim 11 , wherein the reflected portion of the content intersects a line of sight of the user.
18. The non-transitory computer-readable medium of claim 11 , wherein adjusting the brightness of the content comprises changing one or more of a tinted layer, a photochromic layer, and an optical density layer.
19. The non-transitory computer-readable medium of claim 11 , wherein adjusting the brightness of the displayed content comprises adjusting the brightness of the displayed content based on one or more of a change in a gaze direction of the user, a change in a vertical gaze angle of the user, and a change in a focal depth of the user.
20. The non-transitory computer-readable medium of claim 11 , wherein the method further comprises:
measuring, via an accelerometer, one or more of a head movement of the user and a change in a movement speed of the user, and
adjusting the brightness of the content comprises adjusting the brightness of the content based on said measuring.