Convert Apostilb to Blondel
Input the number of apostilbs you want to convert to blondels.
How to Convert Apostilbs to Blondels
The apostilb and blondel are both units of luminance. By definition, 1 apostilb equals exactly 1 blondels. This means to convert apostilbs to blondels, you multiply by 1.
Formula
Step-by-Step Example
Convert 5 asb to blondels:
We need to convert apostilbs to blondels
Since 1 asb = 1 blondel, multiply by 1
5 × 1 = 5
5 asb = 5 blondel
Apostilb to Blondel Conversion Table
Quick reference table for common apostilb to blondel conversions. Click any value for detailed calculation.
| Apostilbs (asb) | Blondels (blondel) |
|---|---|
| 1 asb | 1 blondel |
| 2 asb | 2 blondel |
| 5 asb | 5 blondel |
| 10 asb | 10 blondel |
| 15 asb | 15 blondel |
| 20 asb | 20 blondel |
| 25 asb | 25 blondel |
| 50 asb | 50 blondel |
| 100 asb | 100 blondel |
About These Units
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.
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.
Frequently Asked Questions
How do I convert apostilbs to blondels?
To convert apostilbs to blondels, multiply the value by 1. For example, 10 asb = 10 blondel.
How many blondels are in 1 apostilb?
1 apostilb equals 1 blondels.
What is the formula for apostilbs to blondels?
The formula is: blondel = asb × 1.