Blondel to Candela per Square Meter Conversion

Convert between Blondel and Candela per Square Meter quickly and accurately.

From Blondel

blondel

To Candela per Square Meter

cd/m²

How to Convert Blondel to Candela per Square Meter

Conversion Formula

1 blondel = 0.318 cd/m²

1 cd/m² = 3.142 blondel

Example

Convert 15 blondel to cd/m²:

15 blondel = 15 × 0.318 cd/m² = 4.775 cd/m²

Unit Information

Learn about the luminance units you're converting between

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

Candela per Square Meter

cd/m²

Definition

The Candela per Square Meter is the SI derived unit of luminance, representing the luminous intensity per unit area of light traveling in a given direction. It quantifies how much light is emitted or reflected from a surface area.

History/Origin

Derived from the SI base units of luminous intensity (candela) and area (square meter), this unit was established as part of the modern metric system. It provides a standardized way to measure surface brightness and is fundamental to photometry and lighting design.

Current Use

Widely used in lighting engineering, display technology, and photometry for measuring screen brightness, surface illumination, and light output. Essential for designing lighting systems, evaluating display performance, and ensuring proper illumination levels in various applications.

Multiplier

Offset