BLUE LIGHT ADJUSTMENT FOR BIOMETRIC IDENTIFICATION
First Claim
1. A head mounted display system configured to provide variable levels of blue light to an eye of a user, the display system comprising:
- a frame configured to be wearable on the head of the user;
a display comprising configured to project at least blue light into the eye of the user and to modify an intensity of the blue light relative to an intensity of non-blue light;
a camera configured to capture a first image of the eye while the display projects light at a first ratio of intensity of blue light to non-blue light into the eye and configured to capture a second image of the eye while the display projects a second ratio of intensity of blue light to non-blue light different from the first ratio into the eye;
anda hardware processor programmed to;
analyze an image from the camera to determine whether a change in a pupil parameter between the second image and the first image passes a biometric application threshold;
based at least in part on the determined change, instruct the display to modify a ratio of the intensity of blue light to non-blue light;
determine that the change in the pupil parameter between the second image and the first image passes a biometric application threshold; and
perform a biometric application in response to the determination.
3 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods for blue light adjustment with a wearable display system are provided. Embodiments of the systems and methods for blue light adjustment can include receiving an initial eye image obtained by an image capture device; adjusting a level of blue light exposed to an eye associated with the initial eye image; receiving an adjustment eye image of the eye exposed to the adjusted level of blue light; detecting a change in a pupillary response of the adjustment eye image relative to the initial eye image; determining that the detected change in the pupillary response passes a biometric application threshold; and utilizing eye images or the detected change in the pupillary response for a biometric application.
28 Citations
20 Claims
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1. A head mounted display system configured to provide variable levels of blue light to an eye of a user, the display system comprising:
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a frame configured to be wearable on the head of the user; a display comprising configured to project at least blue light into the eye of the user and to modify an intensity of the blue light relative to an intensity of non-blue light; a camera configured to capture a first image of the eye while the display projects light at a first ratio of intensity of blue light to non-blue light into the eye and configured to capture a second image of the eye while the display projects a second ratio of intensity of blue light to non-blue light different from the first ratio into the eye; and a hardware processor programmed to; analyze an image from the camera to determine whether a change in a pupil parameter between the second image and the first image passes a biometric application threshold; based at least in part on the determined change, instruct the display to modify a ratio of the intensity of blue light to non-blue light; determine that the change in the pupil parameter between the second image and the first image passes a biometric application threshold; and perform a biometric application in response to the determination. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for adjusting a level of blue light exposed to an eye using a wearable display system comprising a camera coupled to computing hardware, the wearable display system comprising a stack of waveguides configured to direct light into the eye, the method comprising:
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directing reference light comprising a first ratio of an intensity of blue light to an intensity of non-blue light into the eye; using the camera, capturing a first image of the eye while the reference light is directed into the eye; directing modified light comprising a second ratio of an intensity of blue light to an intensity of non-blue light different from the first ratio into the eye; using the camera, capturing a second image of the eye while the modified light is directed into the eye; detecting a change in a pupil parameter of the eye between the second image and the first image; determining that the detected change in the pupil parameter passes a biometric application threshold; and performing a biometric application. - View Dependent Claims (17, 18, 19, 20)
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Specification