Watt per Square Centimeter (at 555 nm) to Nox Conversion
Convert between Watt per Square Centimeter (at 555 nm) and Nox quickly and accurately.
How to Convert Watt per Square Centimeter (at 555 nm) to Nox
Conversion Formula
Example
Convert 15 W/cm² (at 555 nm) to nox:
Unit Information
Learn about the illumination units you're converting between
Watt per Square Centimeter (at 555 nm)
W/cm² (at 555 nm)
Definition
The Watt per Square Centimeter (at 555 nm) is a unit of spectral irradiance that can be converted to illuminance at the peak sensitivity wavelength of the human eye. It represents the radiant power per unit area at 555 nm, weighted by the luminous efficacy of radiation.
History/Origin
Developed for converting between radiometric and photometric quantities at the peak sensitivity wavelength of human vision. It provides a bridge between physical light measurements and perceived brightness, using the luminous efficacy of 683 lumens per watt at 555 nm.
Current Use
Used in optical engineering, laser technology, and display characterization where the relationship between radiant power and perceived brightness is important. It allows for precise conversion from physical measurements to photometric quantities for monochromatic light sources.
Multiplier
6830000
Offset
0
Nox
nox
Definition
The Nox is a unit of illuminance equal to one-thousandth of a lux, representing very low levels of illumination. It is used for measuring extremely dim light conditions, such as those found in night vision applications, astronomical observations, or specialized scientific measurements.
History/Origin
Developed for measuring very low illumination levels that are below the practical range of the lux. The nox provides a convenient unit for expressing extremely dim light conditions in scientific and technical applications where precision is important.
Current Use
Used in specialized applications requiring measurement of very low light levels, such as night vision technology, astronomical photometry, and scientific research involving extremely dim light sources. It provides a practical scale for quantifying near-threshold illumination conditions.
Multiplier
0.001
Offset
0
Watt per Square Centimeter (at 555 nm) to Nox Conversion Table
| Watt per Square Centimeter (at 555 nm) [W/cm² (at 555 nm)] | Nox [nox] |
|---|---|
| 1 W/cm² (at 555 nm) | 6830000000 nox |
| 10 W/cm² (at 555 nm) | 68300000000 nox |
| 25 W/cm² (at 555 nm) | 170750000000 nox |
| 50 W/cm² (at 555 nm) | 341500000000 nox |
| 100 W/cm² (at 555 nm) | 683000000000 nox |
| 0 W/cm² (at 555 nm) | 0E+0 nox |
| -10 W/cm² (at 555 nm) | -68300000000 nox |
| -40 W/cm² (at 555 nm) | -273200000000 nox |
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