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

• US 10,345,593 B2
• Filed: 09/19/2016
• Issued: 07/09/2019
• Est. Priority Date: 03/16/2015
• Status: Active Grant

• Current Assignee: Magic Leap, Inc.
• Original Assignee: Magic Leap, Inc.
• Inventors: Samec, Nicole Elizabeth, Macnamara, John Graham, Harrises, Christopher M., Schowengerdt, Brian T., Abovitz, Rony, Baerenrodt, Mark
• Primary Examiner(s): Lhymn, Sarah
• Application Number:
  US15/269,785
• Publication Number:
  US 20170017083A1
• Time in Patent Office: 1,023 Days
• Field of Search: 345418, 345619, 345632, 345633
• CPC Class Codes: A61B 2562/0204 Acoustic sensors
• CPC Class Codes: A61B 2562/0219 Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
• CPC Class Codes: A61B 2562/0247 Pressure sensors
• CPC Class Codes: A61B 3/0008 provided with illuminating means A61B3/117 takes precedence; goniolenses used for laser treatment A61F9/009; illuminating means for optical instruments G02B27/00
• CPC Class Codes: A61B 3/0025 characterised by electronic signal processing, e.g. eye models
• CPC Class Codes: A61B 3/005 Constructional features of the display
• CPC Class Codes: A61B 3/022 for testing contrast sensitivity
• CPC Class Codes: A61B 3/024 for determining the visual field, e.g. perimeter types
• CPC Class Codes: A61B 3/028 for testing visual acuity; for determination of refraction, e.g. phoropters
• CPC Class Codes: A61B 3/0285 Phoropters
• CPC Class Codes: A61B 3/032 Devices for presenting test symbols or characters, e.g. test chart projectors A61B3/036 takes precedence
• CPC Class Codes: A61B 3/036 for testing astigmatism
• CPC Class Codes: A61B 3/063 for testing light sensitivity, i.e. adaptation
• CPC Class Codes: A61B 3/066 for testing colour vision
• CPC Class Codes: A61B 3/08 for testing binocular or stereoscopic vision, e.g. strabismus
• CPC Class Codes: A61B 3/085 for testing strabismus
• CPC Class Codes: A61B 3/10 Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
• CPC Class Codes: A61B 3/1005 for measuring distances inside the eye, e.g. thickness of the cornea A61B3/11 takes precedence
• CPC Class Codes: A61B 3/101 for examining the tear film
• CPC Class Codes: A61B 3/1015 for wavefront analysis
• CPC Class Codes: A61B 3/102 : for optical coherence tomography [OCT]
• CPC Class Codes: A61B 3/1035 : for measuring astigmatism testing astigmatism A61B3/036
• CPC Class Codes: A61B 3/113 : for determining or recording eye movement
• CPC Class Codes: A61B 3/12 : for looking at the eye fundus, e.g. ophthalmoscopes A61B3/13 takes precedence
• CPC Class Codes: A61B 3/1216 : for diagnostics of the iris
• CPC Class Codes: A61B 3/1241 : specially adapted for observation of ocular blood flow, e.g. by fluorescein angiography
• CPC Class Codes: A61B 3/13 : Ophthalmic microscopes
• CPC Class Codes: A61B 3/14 : Arrangements specially adapted for eye photography apparatus or arrangements for taking photographs per se G03B
• CPC Class Codes: A61B 3/165 : Non-contacting tonometers
• CPC Class Codes: A61B 5/0059 : using light, e.g. diagnosis by transillumination, diascopy, fluorescence A61B5/0093, A61B5/1455, A61B5/02416 and A61B5/0261 take precedence
• CPC Class Codes: A61B 5/0066 : Optical coherence imaging
• CPC Class Codes: A61B 5/0077 : Devices for viewing the surface of the body, e.g. camera, magnifying lens
• CPC Class Codes: A61B 5/01 : Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/12 : Audiometering
• CPC Class Codes: A61B 5/14532 : for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1455 : using optical sensors, e.g. spectral photometrical oximeters
• CPC Class Codes: A61B 5/14555 : specially adapted for the eye fundus
• CPC Class Codes: A61B 5/361 : Detecting fibrillation
• CPC Class Codes: A61B 5/369 : Electroencephalography [EEG] devices for psychotechnics A61B5/16
• CPC Class Codes: A61B 5/398 : Electrooculography [EOG], e.g. detecting nystagmus; Electroretinography [ERG]
• CPC Class Codes: A61B 5/6803 : Head-worn items, e.g. helmets, masks, headphones or goggles
• CPC Class Codes: A61B 8/10 : Eye inspection
• CPC Class Codes: A61B 8/461 : Displaying means of special interest
• CPC Class Codes: A61F 2007/0004 : Eyes or part of the face surrounding the eyes
• CPC Class Codes: A61F 2007/004 : Hip
• CPC Class Codes: A61F 2009/00863 : Retina
• CPC Class Codes: A61F 9/0026 : Ophthalmic product dispenser attachments to facilitate positioning near the eye
• CPC Class Codes: A61H 2201/165 : Wearable interfaces
• CPC Class Codes: A61M 2021/0022 : by the tactile sense, e.g. vibrations
• CPC Class Codes: A61M 2021/0027 : by the hearing sense
• CPC Class Codes: A61M 2021/0066 : with heating or cooling
• CPC Class Codes: A61M 21/02 : for inducing sleep or relaxation, e.g. by direct nerve stimulation, hypnosis, analgesia for massage A61H; electrotherapy A61N, e.g. applying alternating or intermittent electric currents for producing anaesthesia A61N1/36021
• CPC Class Codes: A61M 2205/3375 : Acoustical, e.g. ultrasonic, measuring means
• CPC Class Codes: A61M 2205/507 : Head Mounted Displays [HMD]
• CPC Class Codes: A61N 2005/0648 : the light being directed to the eyes
• CPC Class Codes: G02B 2027/0138 : comprising image capture systems, e.g. camera
• CPC Class Codes: G02B 2027/014 : comprising information/image processing systems
• CPC Class Codes: G02B 2027/0185 : Displaying image at variable distance
• CPC Class Codes: G02B 21/0032 : Optical details of illumination, e.g. light-sources, pinholes, beam splitters, slits, fibers G02B21/0036 - G02B21/008; means for illumination of specimens in general G02B21/06
• CPC Class Codes: G02B 27/0093 : with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking
• CPC Class Codes: G02B 27/0172 : characterised by optical features
• CPC Class Codes: G02B 27/0179 : Display position adjusting means not related to the information to be displayed
• CPC Class Codes: G02C 7/027 : considering wearer's parameters
• CPC Class Codes: G06T 19/006 : Mixed reality object pose determination, tracking or camera calibration for mixed reality G06T7/00
• CPC Class Codes: G06T 2207/10024 : Color image
• CPC Class Codes: G06T 2207/10148 : Varying focus
• CPC Class Codes: G06T 2207/10152 : Varying illumination
• CPC Class Codes: G06T 2207/30041 : Eye; Retina; Ophthalmic
• CPC Class Codes: G16H 20/17 : delivered via infusion or injection
• CPC Class Codes: G16H 40/63 : for local operation
• CPC Class Codes: G16H 40/67 : for remote operation
• CPC Class Codes: G16H 50/20 : for computer-aided diagnosis, e.g. based on medical expert systems

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.

Claims

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.