Candela per Square Foot to Lumen per Square Meter Steradian Conversion
Convert between Candela per Square Foot and Lumen per Square Meter Steradian quickly and accurately.
How to Convert Candela per Square Foot to Lumen per Square Meter Steradian
Conversion Formula
Example
Convert 15 cd/ft² to lm/(m²·sr):
Unit Information
Learn about the luminance units you're converting between
Candela per Square Foot
cd/ft²
Definition
The Candela per Square Foot is an imperial unit of luminance, representing the luminous intensity per unit area using the square foot as the area unit. It is commonly used in countries that employ imperial measurement systems for lighting applications.
History/Origin
Developed as part of the imperial system of measurements, this unit provides a practical way to measure surface brightness in contexts where square feet are the standard area unit. It bridges the gap between metric and imperial systems in lighting applications.
Current Use
Used in lighting design and engineering in countries using imperial units, particularly in the United States. Common in architectural lighting, display specifications, and lighting calculations where square footage is the standard area measurement.
Multiplier
10.764
Offset
0
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
Candela per Square Foot to Lumen per Square Meter Steradian Conversion Table
| Candela per Square Foot [cd/ft²] | Lumen per Square Meter Steradian [lm/(m²·sr)] |
|---|---|
| 1 cd/ft² | 10.76391 lm/(m²·sr) |
| 10 cd/ft² | 107.639104 lm/(m²·sr) |
| 25 cd/ft² | 269.09776 lm/(m²·sr) |
| 50 cd/ft² | 538.195521 lm/(m²·sr) |
| 100 cd/ft² | 1076.391042 lm/(m²·sr) |
| 0 cd/ft² | 0E+0 lm/(m²·sr) |
| -10 cd/ft² | -107.639104 lm/(m²·sr) |
| -40 cd/ft² | -430.556417 lm/(m²·sr) |
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