Aspect: luminous-intensity-per-unit-frequency

JSON
Identifier: AS191
Name: luminous-intensity-per-unit-frequency
Associated Scales:
SC1419: ratio scale, candela steradian (per hertz)
SC1420: ratio scale, lumen (per hertz)
SC1421: ratio scale, candela (per hertz)
SC1668: ratio scale, lumen per steradian (per hertz)