apostilb to lumen/square foot/steradian
Please provide values below to convert apostilb to lumen/square foot/steradian, 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funfact: This unit has been replaced by more standardized units such as the stilb or nit in modern applications.
lumen/square foot/steradian
Definition: A unit of luminance, describing luminous flux per unit area (square foot) and solid angle (steradian).
Historyandorigin: Similar to other lumen-based units but using square feet as the area measurement, common in non-metric systems.
CurrentUse: Frequently used in the United States for describing the brightness of projectors, displays, or light sources in various lighting applications.
funfact: This unit is often seen in film and television lighting setups, where high-intensity focused light is required.
apostilb to lumen/square foot/steradian Conversion Table
| 1 apostilb | 0.0295719561 lumen/square foot/steradian |
| 2 apostilb | 0.0591439122 lumen/square foot/steradian |
| 3 apostilb | 0.0887158683 lumen/square foot/steradian |
| 5 apostilb | 0.1478597804 lumen/square foot/steradian |
| 10 apostilb | 0.2957195609 lumen/square foot/steradian |
| 50 apostilb | 1.4785978044 lumen/square foot/steradian |
| 100 apostilb | 2.9571956089 lumen/square foot/steradian |
| 1000 apostilb | 29.571956089 lumen/square foot/steradian |
| 10000 apostilb | 295.71956089 lumen/square foot/steradian |
| 100000 apostilb | 2957.1956089 lumen/square foot/steradian |
| 1000000 apostilb | 29571.956089 lumen/square foot/steradian |
How to Convert apostilb to lumen/square foot/steradian
1 apostilb = 0.0295719561 lumen/square foot/steradian
1 lumen/square foot/steradian = 33.815821889 apostilb
we use cross multiplication method
apostilb → lumen/square foot/steradian
1 → 0.0295719561
1.5 → ?( suppose x)
=>1.5*0.0295719561=1*x
by simplifying
x=0.0443579341