Blondel to Candela per Square Inch Conversion

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

From Blondel

blondel

To Candela per Square Inch

cd/in²

How to Convert Blondel to Candela per Square Inch

Conversion Formula

1 blondel = 0 cd/in²

1 cd/in² = 4869.478 blondel

Example

Convert 15 blondel to cd/in²:

15 blondel = 15 × 0 cd/in² = 0.003 cd/in²

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 Inch

cd/in²

Definition

The Candela per Square Inch is an imperial unit of luminance, representing the luminous intensity per unit area using the square inch as the area unit. It is used for measuring very bright light sources and small-area displays.

History/Origin

This unit was developed for applications requiring precise measurement of small, bright light sources where square inches provide a more appropriate area reference. It is particularly useful in electronics and display technology where component sizes are measured in inches.

Current Use

Commonly used in electronics manufacturing, small display technology, and precision lighting applications. Essential for measuring LED arrays, small screens, and compact light sources where square inch measurements are standard.

Multiplier

1550.003

Offset