Systems and methods for alignment of the eye for ocular imaging
AssigneeDigital Diagnostics Inc.
InventorsMichael D. Abramoff, Eric Talmage, Ben Clark, Edward DeHoog, Timothy Chung
Life of this patent
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Abstract
An ocular alignment system for aligning a subject's eye with an optical axis of an ocular imaging device comprising one or more guide light and one or more baffle configured to mask the one or more guide light from view of the subject such that the one or more guide light is only visible to the subject when the eye of the subject is aligned with the optical axis of an ocular imaging system.
Claims17
A device for aligning a subject's eye with an optical axis of an ocular imaging device comprising:
- a guide light, wherein the guide light is part of a plurality of guide light assemblies;
- a baffle configured to allow passage of light along a path of ocular alignment and configured to mask light along other paths;
- and
- a plurality of secondary baffle assemblies that are each configured to mask light emitted from one of the plurality of guide light assemblies, wherein each of the secondary baffle assemblies further comprises a slit configured to allow passage of light along a second path of ocular alignment,
- wherein the light from guide light is visible to the subject when the subject's eye is in alignment with respect to the optical axis of the ocular imaging device and not visible when the subject's eye is out of alignment with respect to the optical axis of the ocular imaging device.
An ocular alignment system for aligning an optical axis of a subject's eye with an optical axis of an ocular imaging device comprising:
- a plurality of guide lights positioned around the optical axis of the ocular imaging device;
- and
- one or more baffles configured to mask the plurality of guide lights from view of the subject such that the plurality of guide lights are unmasked to the subject when the optical axis of the subject's eye is aligned with the optical axis of the ocular imaging device and are otherwise masked;
- a first set of the plurality of guide lights wherein the first set of guide lights is visible to the subject when the optical axis of the subject's eye is in alignment along an x-axis with respect to the optical axis of the ocular imaging device;
- and
- a second set of guide lights, visible to the subject when the subject's eye is in alignment along a y-axis with respect to the optical axis of the ocular imaging device, wherein when the first set of guide lights and second set of guide lights are simultaneously visible to the subject, the subject's eye is in alignment with a z-axis.
A method of aligning a subject's eye with an optical axis of an ocular imaging device comprising:
- providing a first set of guide lights around an optical path between the subject's eye and the ocular imaging device, wherein the first set of guide lights is visible to the subject when the subject's eye is in alignment along an x-axis with respect to the optical axis;
- providing a second set of guide lights, visible to the subject when the subject's eye is in alignment along a y-axis with respect to the optical axis;
- and
- wherein when the first set of guide lights and second set of guide lights are simultaneously visible to the subject, the subject's eye is in alignment with a z-axis;
- and
- providing a plurality of baffles comprising a first set of the baffles configured to mask the first set of guide lights from view of the subject such that the first set of guide lights is unmasked to the subject when the eye of the subject is aligned with the optical axis of the ocular imaging device and such that the first set of guide lights is otherwise masked.
Dependencies are inferred from the claim text.