4 research outputs found
Release of human platelet factor V activity is induced by both collagen and ADP and is inhibited by aspirin
LED-based Vis-NIR spectrally tunable light source - the optimization algorithm
Background: A novel numerical method for calculating the contributions of individual diodes in a set of light emitting diodes (LEDs), aimed at simulating a blackbody radiation source, is examined. The intended purpose of the light source is to enable calibration of various types of optical sensors, particularly optical radiation pyrometers in the spectral range from 700Â nm to 1070Â nm.
Results: This numerical method is used to determine and optimize the intensity coefficients of individual LEDs that contribute to the overall spectral distribution. The method was proven for known spectral distributions: “flat” spectrum, International Commission on Illumination (CIE) standard daylight illuminant D65 spectrum, Hydrargyrum Medium-arc Iodide (HMI) High Intensity Discharge (HID) lamp, and finally blackbody radiation spectra at various temperatures.
Conclusions: The method enables achieving a broad range of continuous spectral distributions and compares favorably with other methods proposed in the literature