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US 10,895,643 B2Granted
Intelligent illumination systems using modulated light
Assigneeams Sensors Singapore Pte. Ltd.
InventorsMichael Kiy, Bernhard Büttgen
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Abstract
The present disclosure describes intelligent illumination systems that use modulated light. For example, in one aspect, a method includes producing, by a light source, modulated illumination in a visible part of the spectrum, detecting three-dimensional image data based on at least a portion of the modulated light produced by the light source and reflected by a scene, and changing a characteristic of the modulated illumination based on the detected three-dimensional image data.
Claims18
A method comprising:
- producing, by a light source, modulated illumination in a visible part of the spectrum at a modulation frequency;
- synchronizing a modulation signal at the modulation frequency between the light source and a light sensor, the light sensor including a time-of-flight sensor;
- detecting three-dimensional image data using the time-of-flight sensor based on at least a portion of the modulated light produced by the light source and reflected by a scene;
- and
- changing a characteristic of the modulated illumination based on the detected three-dimensional image data.
2 more elements
An apparatus comprising:
- an illuminator including a first light source operable to produce modulated illumination in a visible part of the spectrum;
- a driver operable to drive the first light source at a modulation frequency;
- a light sensor operable to detect three-dimensional image data based at least on a portion of the modulated illumination reflected by a scene, wherein the light sensor includes a time-of-flight sensor and a controller;
- a connection between the controller and the driver, such that a modulation signal at the modulation frequency is synchronized between the light sensor and the illuminator;
- and
- a host device operable to receive signals indicative of the three-dimensional image data and operable to generate one or more control signals to affect a change in a characteristic of the modulated illumination of the first light source based on the signals indicative of the three-dimensional image data.
3 more elements
An apparatus comprising:
- an illuminator including a first light source having a plurality of light emitting elements, each of which is operable to produce modulated light of a different respective wavelength or range of wavelengths in a visible part of the spectrum;
- a light sensor including one or more pixels that are sensitive to the wavelengths of light emitted by the light emitting elements, the light sensor being operable to collect spectral and three-dimensional image data based on light reflected from the scene;
- a host device operable to:
- receive signals indicative of the spectral and three-dimensional image data;
- and
- generate one or more control signals to adjust an intensity of at least one of the light emitting elements based on the spectral and three-dimensional image data.
3 more elements
Dependencies are inferred from the claim text.