Back to results
US 12,111,258 B2Granted
Instruments and methods for characterizing the appearance of samples
AssigneeHunter Associates Laboratory, Inc.
InventorsMichael T. Scardina, Tod L. Kerr, Matthew T. Falanga, Miguel A. Marcos
Life of this patent
Estimating the term…
Abstract
Embodiments of the invention generally relate to color and appearance metric measurements and, in particular, developing instrumentation to enable self-consistent image appearance measurements within instruments of unitary construction.
Claims25
An instrument, comprising:
- an LED array activatable to provide a plurality of different wavelengths of electromagnetic energy for illuminating a sample;
- a controller having discrete control over individual LEDs of the LED array;
- and
- a spectrometer configured to receive electromagnetic energy from the sample after illumination,
- wherein the controller is configured to repeat, for multiple cycles, steps of
- activating the LED array to emit an output, and
- collecting spectrometer data from the spectrometer,
- wherein the controller is configured to adjust activation parameters between cycles so the output of the LED array varies among the multiple cycles,
- wherein the controller is configured to return one or more measurands based on the spectrometer data collected from the multiple cycles,
- wherein the one or more measurands comprise fluorescence.
7 more elements
A method for characterizing fluorescence of a sample, comprising:
- repeating, for multiple cycles, steps of
- activating an LED array to emit an output from among a plurality of different available outputs for illuminating the sample, and
- collecting spectrometer data from a spectrometer that receives electromagnetic energy from the sample after illumination;
- adjusting activation parameters between the cycles so the output of the LED array varies among the multiple cycles;
- and
- returning by a controller one or more measurands based on the spectrometer data collected from the multiple cycles,
- wherein the one or more measurands comprise fluorescence.
4 more elements
Dependencies are inferred from the claim text.