Convert Blondel to Apostilb
Enter the number of blondels that you want to convert to apostilbs.
How to Convert Blondels to Apostilbs
The blondel and apostilb are both units of luminance. By definition, 1 blondel equals exactly 1 apostilbs. This means to convert blondels to apostilbs, you multiply by 1.
Formula
Step-by-Step Example
Convert 5 blondel to apostilbs:
We need to convert blondels to apostilbs
Since 1 blondel = 1 asb, multiply by 1
5 × 1 = 5
5 blondel = 5 asb
Blondel to Apostilb Conversion Table
Quick reference table for common blondel to apostilb conversions. Click any value for detailed calculation.
| Blondels (blondel) | Apostilbs (asb) |
|---|---|
| 1 blondel | 1 asb |
| 2 blondel | 2 asb |
| 5 blondel | 5 asb |
| 10 blondel | 10 asb |
| 15 blondel | 15 asb |
| 20 blondel | 20 asb |
| 25 blondel | 25 asb |
| 50 blondel | 50 asb |
| 100 blondel | 100 asb |
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.
Apostilb (asb)
The apostilb (asb) equals 1/π cd/m² ≈ 0.318 nits. Represents the luminance of a perfect diffuser illuminated by 1 lux. Also called blondel. One apostilb ≈ 0.0929 foot-lamberts. Useful in theoretical calculations involving diffuse reflection.
Frequently Asked Questions
How do I convert blondels to apostilbs?
To convert blondels to apostilbs, multiply the value by 1. For example, 10 blondel = 10 asb.
How many apostilbs are in 1 blondel?
1 blondel equals 1 apostilbs.
What is the formula for blondels to apostilbs?
The formula is: asb = blondel × 1.