Foot-Lambert to Lumen per Square Meter Steradian Conversion

Convert between Foot-Lambert and Lumen per Square Meter Steradian quickly and accurately.

From Foot-Lambert

To Lumen per Square Meter Steradian

lm/(m²·sr)

How to Convert Foot-Lambert to Lumen per Square Meter Steradian

Conversion Formula

1 fL = 3.426 lm/(m²·sr)

1 lm/(m²·sr) = 0.292 fL

Example

Convert 15 fL to lm/(m²·sr):

15 fL = 15 × 3.426 lm/(m²·sr) = 51.394 lm/(m²·sr)

Unit Information

Learn about the luminance units you're converting between

Foot-Lambert

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

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

Offset