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Glossary
J17 Instruction Manual
G-3
Radiant Intensity
The radiant flux through a unit of solid angle. UsualĆ
ly measured in watts/steradian with a sensor having
equal spectral sensitivity to the wavelengths being
measured.
Radiometry
The measurement of radiant power. A radiometric
sensor is equally sensitive to all wavelengths presĆ
ent in the light being measured.
Reflectance Factor
The ratio of reflected light to received light on a
surface.
Tristimulus Values (X,Y,Z)
The amounts of each of three color primaries
required to match the color of a light.
Glossary
J17 Instruction Manual
G-3
Radiant Intensity
The radiant flux through a unit of solid angle. UsualĆ
ly measured in watts/steradian with a sensor having
equal spectral sensitivity to the wavelengths being
measured.
Radiometry
The measurement of radiant power. A radiometric
sensor is equally sensitive to all wavelengths presĆ
ent in the light being measured.
Reflectance Factor
The ratio of reflected light to received light on a
surface.
Tristimulus Values (X,Y,Z)
The amounts of each of three color primaries
required to match the color of a light.