Convert Blondel to Candela per Square Millimeter
Input the number of blondels you want to convert to candelas per square millimeter.
How to Convert Blondels to Candelas per Square Millimeter
The blondel and candela per square millimeter are both units of luminance. 1 candela per square millimeter equals 3141592.6534 blondels. This means to convert blondels to candelas per square millimeter, you divide by 3141592.6534.
Formula
Step-by-Step Example
Convert 5 blondel to candelas per square millimeter:
We need to convert blondels to candelas per square millimeter
Since 1 cd/mm² = 3141592.6534 blondel, divide by 3141592.6534
5 ÷ 3141592.6534 = 1.591549431e-6
5 blondel = 1.591549431e-6 cd/mm²
Blondel to Candela per Square Millimeter Conversion Table
Quick reference table for common blondel to candela per square millimeter conversions. Click any value for detailed calculation.
| Blondels (blondel) | Candelas per Square Millimeter (cd/mm²) |
|---|---|
| 0.1 blondel | 3.183098862e-8 cd/mm² |
| 0.5 blondel | 1.591549431e-7 cd/mm² |
| 1 blondel | 3.183098862e-7 cd/mm² |
| 2 blondel | 6.366197724e-7 cd/mm² |
| 5 blondel | 1.591549431e-6 cd/mm² |
| 10 blondel | 3.183098862e-6 cd/mm² |
| 25 blondel | 7.957747155e-6 cd/mm² |
| 50 blondel | 1.591549431e-5 cd/mm² |
| 100 blondel | 3.183098862e-5 cd/mm² |
About These Units
Blondel (blondel)
The blondel is identical to the apostilb, equal to 1/π cd/m² ≈ 0.318 nits. Named after French physicist André Blondel. Represents the luminance of a perfect Lambertian diffuser illuminated by 1 lux. Rarely used; apostilb is the preferred term.
Candela per Square Millimeter (cd/mm²)
A candela per square millimeter (cd/mm²) equals 1,000,000 nits. Measures extremely intense sources: laser output facets, concentrated LED dies, and arc lamp electrodes. A high-power LED die can exceed 100 cd/mm². Used in optical engineering calculations.
Frequently Asked Questions
How do I convert blondels to candelas per square millimeter?
To convert blondels to candelas per square millimeter, divide the value by 3141592.6534. For example, 10 blondel = 3.183098862e-6 cd/mm².
How many candelas per square millimeter are in 1 blondel?
1 blondel equals 3.183098862e-7 candelas per square millimeter.
What is the formula for blondels to candelas per square millimeter?
The formula is: cd/mm² = blondel ÷ 3141592.6534.