Applied Optics · 1968 · 100 citations · 0 references
Natural SciencesAstronomyPhysicsMetrologyOptical AstronomyOpticsMeasurement StandardsMeasurement SystemsPhotometric SystemsStandard UnitsUnit ConversionUnits Of MeasurementAstronomical Unit ConversionSi Base QuantitiesSi Base UnitsSi Derived QuantitiesSi Unit ConversionUnit StandardizationUnit Tables
Although often colorful and of historical interest, some radiometric and photometric units are redundant and illogical. The essential units are few in number. These, together with their definitions and conversion factors, are presented here.