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US 12,478,253 B2Granted
Retinal camera with selective illumination bands
AssigneeVerily Life Sciences LLC
InventorsHonglei Wu, Sam Kavusi
Life of this patent
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Abstract
A technique for imaging a retina with a retinal camera includes illuminating the retina with a plurality of distinct illumination bands that are substantially exclusive of green visible light while substantially not illuminating the retina with the green visible light. A first retinal image is acquired while illuminating the retina with the distinct illumination bands and substantially not illuminating the retina with the green visible light.
Claims10
A retinal imaging system, comprising:
- an image sensor adapted to acquire one or more retinal images;
- a multiband illuminator positioned relative to the image sensor for illuminating a retina while the image sensor acquires the one or more retinal images, the multiband illuminator configured to generate a plurality of distinct illumination bands including visible light wavelengths substantially devoid of green visible light;
- and
- a controller coupled to the image sensor and the multiband illuminator, the controller including logic that when executed by the controller causes the retinal imaging system to perform operations including:
- illuminating the retina with the distinct illumination bands that include the visible light wavelengths substantially devoid of the green visible light while substantially not illuminating the retina with the green visible light;
- and
- acquiring a first retinal image of the one or more retinal images with the image sensor while illuminating the retina with the distinct illumination bands that include the visible light wavelengths substantially devoid of the green visible light and substantially not illuminating the retina with the green visible light.
4 more elements
Dependencies are inferred from the claim text.