Nox to Watt per Square Centimeter (at 555 nm) Conversion

Convert between Nox and Watt per Square Centimeter (at 555 nm) quickly and accurately.

From Nox

nox

To Watt per Square Centimeter (at 555 nm)

W/cm² (at 555 nm)

How to Convert Nox to Watt per Square Centimeter (at 555 nm)

Conversion Formula

1 nox = 1E-10 W/cm² (at 555 nm)

1 W/cm² (at 555 nm) = 6830000000 nox

Example

Convert 15 nox to W/cm² (at 555 nm):

15 nox = 15 × 1E-10 W/cm² (at 555 nm) = 2E-9 W/cm² (at 555 nm)

Unit Information

Learn about the illumination units you're converting between

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

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