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US 2022/0034462 A1Published application
Adaptive lighting system for even illumination
OwnerUdayan Kanadeinventor
Life of this patent
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Abstract
An adaptive lighting system for even illumination is provided. In an embodiment, multiple lamps illuminate light in different areas or zones of the surroundings. These lamps modulate their light output in a known (but imperceptible) pattern. One or more light detectors detects light from the surroundings. Light sourced from each lamp is disambiguated and one or more light time-of-flight delays are calculated for each lamp-light detector pair. Based on these calculated delays, illumination levels of the lights are adjusted so as to produce even illumination.
Claims11
A method comprising:
- providing a first rigid body,
- providing a plurality of lamps attached to the first rigid body,
- providing one or more light detectors attached to the first rigid body,
- modulating the light output of each lamp in accordance with a flashing sequence,
- detecting light reflected from the surroundings using the light detectors,
- correlating the output of a light detector with the flashing sequence to generate at least one delay estimate, and
- setting the illumination output of a lamp based on the delay estimate,
- wherein the step of correlating the output of a light detector with a flashing sequence to generate at least one delay estimate comprises producing a cross correlation sequence from the flashing sequence and the output of the light detector.
5 more elements
A system comprising:
- a first body,
- a plurality of lamps attached to the first body,
- one or more light detectors attached to the first body, and
- a cross correlator,
- wherein each lamp modulates its light output in accordance with a flashing sequence, the light detectors detect light reflected from the surroundings,
- the cross correlator is configured to calculate a cross correlation sequence from the flashing sequence and the light detected by the light detector, and
- the system is configured to change the illumination levels of the plurality of lamps based on the output of the cross correlator.
4 more elements
Dependencies are inferred from the claim text.