Lumen per Square Meter Steradian to Blondel Conversion
Convert between Lumen per Square Meter Steradian and Blondel quickly and accurately.
How to Convert Lumen per Square Meter Steradian to Blondel
Conversion Formula
Example
Convert 15 lm/(m²·sr) to blondel:
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
Blondel
blondel
Definition
The Blondel is a non-SI unit of luminance equal to 0.3183098862 candela per square meter, identical to the apostilb. It is named after the French physicist André Blondel and is used in some specialized photometric applications.
History/Origin
Named after the French physicist André Blondel, this unit was developed as part of early photometric systems. It is identical to the apostilb and provides an alternative way to express low luminance values in certain technical and historical contexts.
Current Use
Used in specialized photometric applications and historical contexts where the Blondel unit is preferred. Occasionally found in older technical specifications and certain branches of photometry where traditional units are still used.
Multiplier
0.318
Offset
0
Lumen per Square Meter Steradian to Blondel Conversion Table
| Lumen per Square Meter Steradian [lm/(m²·sr)] | Blondel [blondel] |
|---|---|
| 1 lm/(m²·sr) | 3.141593 blondel |
| 10 lm/(m²·sr) | 31.415927 blondel |
| 25 lm/(m²·sr) | 78.539816 blondel |
| 50 lm/(m²·sr) | 157.079633 blondel |
| 100 lm/(m²·sr) | 314.159265 blondel |
| 0 lm/(m²·sr) | 0E+0 blondel |
| -10 lm/(m²·sr) | -31.415927 blondel |
| -40 lm/(m²·sr) | -125.663706 blondel |
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