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Digital dosimeter - Dosimetry™
Lumencor light engines are uniquely well suited for quantitative fluorescence analysis. Light outputs may be read as photon counts which are proportional to photon number, not intensity or power. Pulse to pulse reproducibility is excellent: standard deviations typically less than 0.1%. The thermalized light engine output increases linearly in time or pulse width. All the light delivered can be monitored in real time and measured electronically. This capacity to titrate photon number in a given experiment provides an unprecedented level of precision and therefore experimental control of light similar to measuring reagents in a chemical reaction.Light engine outputs can be controlled by a variety of means. To overcome the influence of environmental changes and any light engine performance variation on the optical output, three closed loop options exist to stabilize photon delivery:
Constant current
Metered dosage
Constant intensity