Methods and systems for providing augmented reality content for treating color blindness

Patent metadata

Field	Value
Publication number	US-10345593-B2
Application number	US-201615269785-A
Country	US
Kind code	B2
Filing date	Sep 19, 2016
Priority date	Mar 16, 2015
Publication date	Jul 9, 2019
Grant date	Jul 9, 2019

Abstract

Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.

First claim

What is claimed is:

1. A wearable augmented reality device configured to be used by a wearer, said device comprising:
an augmented reality head-mounted ophthalmic system comprising a wearable augmented reality display platform, said augmented reality head-mounted ophthalmic system configured to pass light from the world into an eye of a wearer wearing the head-mounted system, said wearable augmented reality display platform comprising a display comprising at least one light source, wherein the wearable augmented reality display platform comprises a waveguide stack comprising a plurality of waveguides, each waveguide of the plurality of waveguides comprising:
in-coupling diffractive optical elements configured to in-couple light provided by the light source, and
out-coupling diffractive optical elements configured to out-couple in-coupled light to the eye of a wearer of the head-mounted augmented reality display,
wherein one or more waveguides of the plurality of waveguides are configured to output the in-coupled light with a different amount of wavefront divergence than one or more other waveguides of the plurality of waveguides, wherein the different amounts of wavefront divergence correspond to different depth planes; and

wherein said wearable augmented reality device is configured to selectively modify wearer perception of said light from the world by out-coupling in-coupled light from the waveguide stack to the eye of the wearer based on a color detection deficiency of the wearer.

2. The device of claim 1 , wherein said augmented reality head-mounted ophthalmic system further comprises at least one outward-facing camera configured to image said light from the world.

3. The device of claim 2 , wherein said outward-facing camera is configured to detect the presence in said light from the world of a color for which the wearer has a detection deficiency.

4. The device of claim 1 , wherein said selective modification comprises enhancing the color of light projected from at least a portion of the display.

5. The device of claim 1 , wherein said selective modification comprises projecting light from the at least one light source to increase the amplitude of said light in a region of the display comprising a color for which the wearer has a detection deficiency.

6. The device of claim 1 , wherein said selective modification comprises changing the color of light in a region of the display.

7. The device of claim 6 , wherein changing the color of light in a region of the display comprises using an optical filter.

8. The device of claim 7 , wherein changing the color of light in a region of the display comprises using an optical filter to remove spectral overlap between a plurality of photopigments.

9. The device of claim 8 , wherein said plurality of photopigments comprise at least one photopigment associated with the detection of red light and at least one photopigment associated with the detection of green light.

10. The device of claim 7 , wherein said optical filter comprises a multi-notch filter.

11. The device of claim 1 , wherein said selective modification comprises decreasing the visibility of at least a portion of said light from the world through destructive interference.

12. A method of providing augmented reality content for mitigating a color detection deficiency, the method comprising:
passing light from the world into an eye of a wearer of an augmented reality display device, said wearer having a color detection deficiency, said augmented reality display device comprising a light source and a waveguide stack comprising a plurality of waveguides, each waveguide of the plurality of waveguides comprising:
in-coupling diffractive optical elements configured to in-couple light provided by the light source, and
out-coupling diffractive optical elements configured to out-couple in-coupled light to the eye of the wearer of the head-mounted augmented reality display,
wherein one or more waveguides of the plurality of waveguides are configured to output the in-coupled light with a different amount of wavefront divergence than one or more other waveguides of the plurality of waveguides, wherein the different amounts of wavefront divergence correspond to different depth planes;

imaging said light from the world at the display device; and
selectively modifying wearer perception of light directed from the waveguide stack to the eye of the wearer based on the color detection deficiency.

13. The method of claim 12 , wherein selectively modifying said light comprises projecting light from a light source of the display device into the eye of the wearer.

14. The method of claim 13 , wherein selectively modifying said light comprises increasing contrast of light projected from the display device.

15. The method of claim 12 , further comprising identifying, within said light from the world, light of a wavelength associated with said color detection deficiency.

16. The method of claim 15 , further comprising determining a location within a field of view of the wearer associated with said light of the wavelength associated with said color deficiency.

17. The method of claim 16 , wherein selectively modifying said light comprises projecting additional light into the eye of the wearer at said location within the field of view of the wearer.

18. The method of claim 17 , wherein said additional light has a wavelength different from at least one wavelength of said light from the world detected at said location.

Assignees

• Magic Leap Inc

Inventors

• Samec Nicole Elizabeth
• Macnamara John Graham
• Harrises Christopher M
• Schowengerdt Brian T
• Abovitz Rony
• Baerenrodt Mark

Classifications

• A61B3/0025

  characterised by electronic signal processing, e.g. eye models · CPC title

• A61B3/005

  Constructional features of the display · CPC title

• A61B3/1241

  specially adapted for observation of ocular blood flow, e.g. by fluorescein angiography · CPC title

• G02C7/027

  considering wearer's parameters · CPC title

• A61N2005/0648

  the light being directed to the eyes · CPC title