lumen/sq. meter/steradian to apostilb
Please provide values below to convert lumen/sq. meter/steradian to apostilb, or change ↔.
lumen/sq. meter/steradian
Definition: A unit of luminance, expressing the amount of luminous flux per unit area and solid angle.
Historyandorigin: This combines the lumen (a unit of luminous flux) with square meters and steradians, the units for area and solid angle, respectively.
CurrentUse: Common in photometry, particularly when measuring light emitted from a source in a specific direction or angle.
funfact: This unit is useful for describing light distribution in projectors and lighting fixtures.
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funfact: This unit has been replaced by more standardized units such as the stilb or nit in modern applications.
lumen/sq. meter/steradian to apostilb Conversion Table
| 1 lumen/sq. meter/steradian | 3.1415926536 apostilb |
| 2 lumen/sq. meter/steradian | 6.2831853072 apostilb |
| 3 lumen/sq. meter/steradian | 9.4247779608 apostilb |
| 5 lumen/sq. meter/steradian | 15.707963268 apostilb |
| 10 lumen/sq. meter/steradian | 31.415926536 apostilb |
| 50 lumen/sq. meter/steradian | 157.07963268 apostilb |
| 100 lumen/sq. meter/steradian | 314.15926536 apostilb |
| 1000 lumen/sq. meter/steradian | 3141.5926536 apostilb |
| 10000 lumen/sq. meter/steradian | 31415.926536 apostilb |
| 100000 lumen/sq. meter/steradian | 314159.26536 apostilb |
| 1000000 lumen/sq. meter/steradian | 3141592.6536 apostilb |
How to Convert lumen/sq. meter/steradian to apostilb
1 lumen/sq. meter/steradian = 3.1415926536 apostilb
1 apostilb = 0.3183098862 lumen/sq. meter/steradian
we use cross multiplication method
lumen/sq. meter/steradian → apostilb
1 → 3.1415926536
1.5 → ?( suppose x)
=>1.5*3.1415926536=1*x
by simplifying
x=4.7123889804