Rayleigh
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Switch cd/m² to R
Rayleigh Unit Table
A list of units symbol and data.
From RTo cd/m²All conversion
1 R1 cd/m²
2 R2 cd/m²
3 R3 cd/m²
4 R4 cd/m²
5 R5 cd/m²
6 R6 cd/m²
7 R7 cd/m²
8 R8 cd/m²
9 R9 cd/m²
10 R10 cd/m²
Description

Rayleigh (R): Specialized Unit for Atmospheric Light Emissions

The rayleigh is a non-SI unit used to measure the faint emissions of light in the upper atmosphere, such as those produced by auroras or airglow. One rayleigh corresponds to 1010 photons per square meter per second along a vertical column. This unit is especially important in geophysics, atmospheric science, and astrophysics for quantifying extremely low levels of light that are invisible to the human eye but detectable by scientific instruments.

Rayleigh measurements are essential for studying natural light phenomena in the Earth's mesosphere and thermosphere. These emissions play a crucial role in understanding the impact of solar activity on Earth, helping scientists monitor space weather and its effects on satellite communications and navigation systems. By quantifying these subtle luminous occurrences, the rayleigh contributes to our broader understanding of planetary atmospheres and cosmic interactions.

Candela per Square Meter (cd/m²): Standard Unit of Luminance

Candela per square meter is the SI unit of luminance, measuring the luminous intensity emitted or reflected from a surface in a given direction per unit area. This unit is commonly used to describe the brightness of displays, screens, and illuminated surfaces, providing a standardized measure for evaluating visual performance.

In practical applications, cd/m² values are critical for calibrating monitors, televisions, and other display devices to ensure consistent brightness and image quality. Accurate luminance measurements contribute to visual comfort, energy efficiency, and compliance with industry standards in various sectors, including consumer electronics, broadcasting, and lighting design.

Complete list of conversion for Rayleigh
Rayleigh (R)

1 Rayleigh = 1 Candela

Convert 2 R → cd

1 Rayleigh = 1 Candlepower

Convert 2 R → cp

1 Rayleigh = 1 Lumen

Convert 2 R → lm

1 Rayleigh = 1 Lux

Convert 2 R → lx

1 Rayleigh = 0.09290312990644656 Footcandle

Convert 2 R → fc

1 Rayleigh = 0.0001 Phot

Convert 2 R → ph

1 Rayleigh = 1 Candela per square meter

Convert 2 R → cd/m²

1 Rayleigh = 1 Nit

Convert 2 R → nt

1 Rayleigh = 0.0001 Stilb

Convert 2 R → sb

1 Rayleigh = 0.0003141592653587727 Lambert

Convert 2 R → L

1 Rayleigh = 0.2918635079290997 Footlambert

Convert 2 R → fL

1 Rayleigh = 1 Lumen second

Convert 2 R → lm·s

1 Rayleigh = 1 Lux second

Convert 2 R → lx·s