Back to results
US 12,007,282 B2Granted
Instrument monitoring
AssigneeDatacolor Inc.
InventorsMichael H. Brill, Zhiling Xu, Kathleen A. Edwards
Life of this patent
Estimating the term…
Abstract
A method has been developed to monitor the aging of an illuminator (such as a lamp) and the interior sphere wall in a sphere-based color measurement instrument. This monitoring process or method is configurable to independently monitor the aging of the illuminator as well as the aging of the interior surface of a color measurement device using standard calibration measurements already present in the color measurement device.
Claims20
A method of monitoring components of a color measurement device comprising:
- illuminating, with at least one illuminator, a sample using a measurement enclosure at a first time and at a second time wherein the second time is later than the first time;
- obtaining, from at least one sample channel sensor using at least one processor, a first sensor output signal generated from measuring light reflected off the sample at the first time and a second sensor output signal generated from measuring light reflected off the sample at the second time;
- obtaining, from at least one reference channel sensor using at least one processor, a first reference output signal generated from measuring light reflected off a portion of the measurement enclosure at the first time and a second reference output signal generated from measuring light reflected off the portion of the measurement enclosure at the second time;
- and
- determining, using at least one processor, at least one of a reflectance value for the portion of the measurement enclosure and at least one lamp intensity value for the at least one illuminator based on at least the first and second sample sensor output signal measurements and the first and second reference output signal measurements.
2 more elements
A color measurement system comprising:
- an enclosure, the enclosure having at least one illuminator;
- at least one sample channel sensor for measuring light reflected off a sample positioned at a sample port of the enclosure at the first time and a second sensor output signal generated from measuring light reflected off of the sample at a second time, wherein the second time is later than the first time;
- at least one reference channel sensor for measuring light reflected off of a portion of the enclosure at the first time and a second reference output signal generated from measuring light reflected off the portion of the enclosure at the second time;
- and
- a processor, configured to receive the first and second sample signal and the first and second reference signal and determine at least one of a reflectance value for the portion of the measurement enclosure and at least one lamp intensity value for the at least one illuminator based on at least the first and second sample sensor output signal measurements and the first and second reference output signal measurements.
2 more elements
A method of monitoring components of a color measurement device comprising:
- illuminating, with at least one illuminator, a first sample placed in a sample port of a measurement enclosure at a first time;
- obtaining, using at least one processor, from at least one sample channel sensor, a first sensor output signal generated from measuring light reflected off the sample at the first time;
- obtaining, using at least one processor, from at least one reference channel sensor, a first reference output signal generated from measuring light reflected off of a portion of the measurement enclosure at the first time;
- illuminating, with at least one illuminator, a second sample placed in a sample port of a measurement enclosure at a second time;
- obtaining a second sensor output signal generated from measuring light reflected off of the second sample at the second time;
- obtaining a second reference output signal generated from measuring light reflected off the portion of the measurement enclosure at the second time;
- and
- determining, using at least one processor, at least one of a reflectance value for the portion of the measurement enclosure and at least one lamp intensity value for the at least one illuminator based on at least the first and second sensor output signal measurements and the first and second reference output signal measurements.
5 more elements
Dependencies are inferred from the claim text.