Lumen per Square Meter to Watt per Square Centimeter (at 555 nm) Conversion

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

lm/m²
W/cm² (at 555 nm)

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

Conversion Formula

1 lm/m² = 1E-7 W/cm² (at 555 nm)
1 W/cm² (at 555 nm) = 6830000 lm/m²

Example

Convert 15 lm/m² to W/cm² (at 555 nm):

15 lm/m² = 15 × 1E-7 W/cm² (at 555 nm) = 0 W/cm² (at 555 nm)

Unit Information

Learn about the illumination units you're converting between

Lumen per Square Meter

lm/m²

Definition

The Lumen per Square Meter is a unit of illuminance that is numerically equivalent to the lux. It represents the luminous flux per unit area, emphasizing the flux aspect of light measurement and providing a direct relationship between light output and surface illumination.

History/Origin

Derived from the fundamental definition of the lux as one lumen per square meter. It provides an alternative way to express illuminance that emphasizes the luminous flux component, making it useful in calculations involving light sources and their output.

Current Use

Widely used in lighting calculations and photometric applications where the relationship between luminous flux and surface area is important. It provides a practical way to understand illuminance in terms of light source output and surface coverage.

Multiplier

1

Offset

0

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

Lumen per Square Meter to Watt per Square Centimeter (at 555 nm) Conversion Table

Lumen per Square Meter [lm/m²] Watt per Square Centimeter (at 555 nm) [W/cm² (at 555 nm)]
1 lm/m² 1E-7 W/cm² (at 555 nm)
10 lm/m² 0.000001 W/cm² (at 555 nm)
25 lm/m² 0.000004 W/cm² (at 555 nm)
50 lm/m² 0.000007 W/cm² (at 555 nm)
100 lm/m² 0.000015 W/cm² (at 555 nm)
0 lm/m² 0E+0 W/cm² (at 555 nm)
-10 lm/m² -0.000001 W/cm² (at 555 nm)
-40 lm/m² -0.000006 W/cm² (at 555 nm)