Watt per Square Centimeter Steradian (at 555 nm) to Blondel Conversion
Convert between Watt per Square Centimeter Steradian (at 555 nm) and Blondel quickly and accurately.
How to Convert Watt per Square Centimeter Steradian (at 555 nm) to Blondel
Conversion Formula
Example
Convert 15 W/(cm²·sr) to blondel:
Unit Information
Learn about the luminance units you're converting between
Watt per Square Centimeter Steradian (at 555 nm)
W/(cm²·sr)
Definition
The Watt per Square Centimeter Steradian at 555 nm is a radiometric unit of luminance that measures radiant power per unit area and solid angle at the peak sensitivity wavelength of the human eye. It is used for precise photometric calculations and laser applications.
History/Origin
This unit was developed for applications requiring precise conversion between radiometric and photometric quantities. The 555 nm wavelength corresponds to the peak sensitivity of the human eye, making it ideal for accurate photometric measurements and laser safety calculations.
Current Use
Used in laser safety, precision photometry, and applications requiring exact conversion between radiometric and photometric units. Essential for laser power measurements, optical system design, and safety calculations where precise luminance values are critical.
Multiplier
6830000
Offset
0
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
0
Watt per Square Centimeter Steradian (at 555 nm) to Blondel Conversion Table
| Watt per Square Centimeter Steradian (at 555 nm) [W/(cm²·sr)] | Blondel [blondel] |
|---|---|
| 1 W/(cm²·sr) | 21457077.8229259998 blondel |
| 10 W/(cm²·sr) | 214570778.2292560041 blondel |
| 25 W/(cm²·sr) | 536426945.5731409788 blondel |
| 50 W/(cm²·sr) | 1072853891.146281004 blondel |
| 100 W/(cm²·sr) | 2145707782.2925629616 blondel |
| 0 W/(cm²·sr) | 0E+0 blondel |
| -10 W/(cm²·sr) | -214570778.2292560041 blondel |
| -40 W/(cm²·sr) | -858283112.9170249701 blondel |
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