Lumen per Square Meter Steradian to Foot-Lambert Conversion
Convert between Lumen per Square Meter Steradian and Foot-Lambert quickly and accurately.
How to Convert Lumen per Square Meter Steradian to Foot-Lambert
Conversion Formula
Example
Convert 15 lm/(m²·sr) to fL:
Unit Information
Learn about the luminance units you're converting between
Lumen per Square Meter Steradian
lm/(m²·sr)
Definition
The Lumen per Square Meter Steradian is a unit of luminance that explicitly shows the relationship between luminous flux, area, and solid angle. It is dimensionally equivalent to candela per square meter and provides insight into the geometric aspects of light measurement.
History/Origin
This unit was developed to emphasize the relationship between luminous flux, surface area, and solid angle in luminance measurements. It provides a more detailed understanding of how light is distributed and measured in three-dimensional space.
Current Use
Used in advanced photometry and lighting calculations where the relationship between flux, area, and solid angle is important. Common in research applications and detailed lighting analysis where understanding the geometric aspects of light distribution is crucial.
Multiplier
1
Offset
0
Foot-Lambert
fL
Definition
The Foot-Lambert is an imperial unit of luminance equal to 3.4262590996 candela per square meter. It is commonly used in display technology and lighting applications in countries that employ imperial measurement systems.
History/Origin
This unit was developed as an imperial equivalent to the lambert, using square feet as the area unit. It provides a practical way to measure luminance in contexts where imperial units are standard, particularly in display technology and lighting applications.
Current Use
Widely used in display technology, particularly in the United States, for specifying monitor brightness, television luminance, and other display characteristics. Common in consumer electronics specifications and lighting applications where imperial units are standard.
Multiplier
3.426
Offset
0
Lumen per Square Meter Steradian to Foot-Lambert Conversion Table
| Lumen per Square Meter Steradian [lm/(m²·sr)] | Foot-Lambert [fL] |
|---|---|
| 1 lm/(m²·sr) | 0.291864 fL |
| 10 lm/(m²·sr) | 2.918635 fL |
| 25 lm/(m²·sr) | 7.296588 fL |
| 50 lm/(m²·sr) | 14.593175 fL |
| 100 lm/(m²·sr) | 29.186351 fL |
| 0 lm/(m²·sr) | 0E+0 fL |
| -10 lm/(m²·sr) | -2.918635 fL |
| -40 lm/(m²·sr) | -11.67454 fL |
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