Foot-Lambert to Blondel Conversion

Convert between Foot-Lambert and Blondel quickly and accurately.

From Foot-Lambert

To Blondel

blondel

How to Convert Foot-Lambert to Blondel

Conversion Formula

1 fL = 10.764 blondel

1 blondel = 0.093 fL

Example

Convert 15 fL to blondel:

15 fL = 15 × 10.764 blondel = 161.459 blondel

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

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