Foot-Lambert to Apostilb Conversion

Convert between Foot-Lambert and Apostilb quickly and accurately.

From Foot-Lambert

To Apostilb

asb

How to Convert Foot-Lambert to Apostilb

Conversion Formula

1 fL = 10.764 asb

1 asb = 0.093 fL

Example

Convert 15 fL to asb:

15 fL = 15 × 10.764 asb = 161.459 asb

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

Apostilb

asb

Definition

The Apostilb is a non-SI unit of luminance equal to 0.3183098862 candela per square meter. It is used in some specialized applications and provides an alternative way to express low luminance values in certain technical contexts.

History/Origin

This unit was developed as part of early photometric systems and is still used in some specialized applications. It provides a convenient way to express low luminance values and is occasionally found in technical specifications and measurement systems.

Current Use

Used in specialized photometric applications and certain technical contexts where traditional units are preferred. Occasionally found in older technical specifications and specialized measurement systems where non-SI units are still used.

Multiplier

0.318

Offset