Devices, systems, and methods for calibrating an optical measurement device
AssigneeHi LLC
InventorsMichael Henninger, Isai Olvera, Han Yong Ban, Ryan Field
Life of this patent
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Abstract
An illustrative calibration member made from a material that scatters light may be used to perform a calibration operation with respect to an optical measurement device having a plurality of light sources and a plurality of detectors distributed among a plurality of modules. The calibration member may form an exterior surface configured to support the optical measurement device and scatter photons of light emitted by the optical measurement device. The calibration operation may be performed based on arrival times of the scattered photons detected by the optical measurement device.
Claims28
A system comprising:
- an optical measurement device comprising a plurality of light sources and a plurality of detectors distributed among a plurality of modules, wherein each module comprises one or more of the light sources and one or more of the detectors;
- a manufactured calibration member made from a material that scatters light, the calibration member forming an exterior surface and configured to support the optical measurement device when the optical measurement device is placed on the calibration member;
- and
- a processing unit configured to:
- cause, while the optical measurement device is supported by the calibration member, at least one light source of the plurality of light sources to emit light toward the exterior surface of the calibration member and at least one detector of the plurality of detectors to detect arrival times for photons of the light after the light is scattered by the calibration member;
- and
- perform, based on the arrival times of photons, a calibration operation with respect to the optical measurement device.
A calibration assembly comprising:
- a manufactured calibration member made from a material that scatters light, the calibration member forming an exterior surface;
- and
- a shell made from a translucent material that allows light to pass therethrough, the shell forming an interior surface configured to be placed on the exterior surface of the calibration member and an exterior surface configured to support an optical measurement device when the optical measurement device is placed on the shell;
- wherein, while the optical measurement device is supported by the shell, the exterior surface of the calibration member is configured to scatter light emitted by the optical measurement device for performing a calibration operation with respect to the optical measurement device.
A manufactured calibration member comprising:
- a material that scatters light;
- and
- an arcuate exterior surface corresponding to an interior surface of an optical measurement device;
- wherein, while the optical measurement device is positioned on the calibration member, the exterior surface of the calibration member is spaced at a uniform distance away from the interior surface of the optical measurement device;
- wherein, while the optical measurement device is positioned about the calibration member, the exterior surface of the calibration member is configured to scatter light emitted by the optical measurement device for performing a calibration operation with respect to the optical measurement device.
A method comprising:
- causing, while an optical measurement device comprising a plurality of light sources and a plurality of detectors distributed among a plurality of modules is placed on a manufactured calibration member made from a material that scatters light, at least one light source of the plurality of light sources to emit light toward an exterior surface of the calibration member and at least one detector of the plurality of detectors to detect arrival times for photons of the light after the light is scattered by the calibration member;
- and
- performing, based on the arrival times of photons, a calibration operation with respect to the optical measurement device.
Dependencies are inferred from the claim text.