apostilb to watt/sq. cm/steradian (at 555 nm)
Please provide values below to convert apostilb to watt/sq. cm/steradian (at 555 nm), or change ↔.
apostilb
Definition: An older unit of luminance, equivalent to one candela per square meter.
Historyandorigin: The apostilb is an archaic unit used primarily in older lighting systems, and is largely obsolete today.
CurrentUse: Very rarely used today, except in specific historical contexts or when dealing with older lighting equipment.
funfact: This unit has been replaced by more standardized units such as the stilb or nit in modern applications.
watt/sq. cm/steradian (at 555 nm)
Definition: A unit of radiant flux per unit area and solid angle, specifically at the wavelength of 555 nm, which corresponds to green light.
Historyandorigin: This unit is derived from the watt, which measures radiant power, adjusted for area (square centimeters) and solid angle (steradians), with the wavelength specified for the visible spectrum.
CurrentUse: Used in scientific research to quantify the intensity of light at a specific wavelength, particularly in photonics and color science.
funfact: 555 nm is the wavelength at which the human eye is most sensitive, making it a standard reference for brightness measurements.
apostilb to watt/sq. cm/steradian (at 555 nm) Conversion Table
| 1 apostilb | 4.660466854E-8 watt/sq. cm/steradian (at 555 nm) |
| 2 apostilb | 9.320933709E-8 watt/sq. cm/steradian (at 555 nm) |
| 3 apostilb | 1.398140056E-7 watt/sq. cm/steradian (at 555 nm) |
| 5 apostilb | 2.330233427E-7 watt/sq. cm/steradian (at 555 nm) |
| 10 apostilb | 4.660466854E-7 watt/sq. cm/steradian (at 555 nm) |
| 50 apostilb | 0.0000023302 watt/sq. cm/steradian (at 555 nm) |
| 100 apostilb | 0.0000046605 watt/sq. cm/steradian (at 555 nm) |
| 1000 apostilb | 0.0000466047 watt/sq. cm/steradian (at 555 nm) |
| 10000 apostilb | 0.0004660467 watt/sq. cm/steradian (at 555 nm) |
| 100000 apostilb | 0.0046604669 watt/sq. cm/steradian (at 555 nm) |
| 1000000 apostilb | 0.0466046685 watt/sq. cm/steradian (at 555 nm) |
How to Convert apostilb to watt/sq. cm/steradian (at 555 nm)
1 apostilb = 4.660466854E-8 watt/sq. cm/steradian (at 555 nm)
1 watt/sq. cm/steradian (at 555 nm) = 21457077.824 apostilb
we use cross multiplication method
apostilb → watt/sq. cm/steradian (at 555 nm)
1 → 4.660466854E-8
1.5 → ?( suppose x)
=>1.5*4.660466854E-8=1*x
by simplifying
x=6.990700282E-8