Lumen second
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Lumen second Unit Table
A list of units symbol and data.
From lm·sTo RAll conversion
1 lm·s1 R
2 lm·s2 R
3 lm·s3 R
4 lm·s4 R
5 lm·s5 R
6 lm·s6 R
7 lm·s7 R
8 lm·s8 R
9 lm·s9 R
10 lm·s10 R
Description

Lumen Second (lm·s): Measuring Luminous Energy

The lumen second, also known as the talbot, is a unit of luminous energy, representing the total amount of light emitted over a period of time. It is calculated by multiplying luminous flux (in lumens) by time (in seconds). This unit is useful in applications where the duration of light exposure is significant, such as in photography, lighting design, and vision science.

By quantifying the cumulative light output, the lumen second allows for the assessment of energy usage, exposure levels, and the effectiveness of lighting systems over time. This information is crucial for optimizing performance, ensuring safety, and enhancing energy efficiency in various contexts.

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.

Complete list of conversion for Lumen second
Lumen second (lm·s)

1 Lumen second = 1 Candela

Convert 2 lm·s → cd

1 Lumen second = 1 Candlepower

Convert 2 lm·s → cp

1 Lumen second = 1 Lumen

Convert 2 lm·s → lm

1 Lumen second = 1 Lux

Convert 2 lm·s → lx

1 Lumen second = 0.09290312990644656 Footcandle

Convert 2 lm·s → fc

1 Lumen second = 0.0001 Phot

Convert 2 lm·s → ph

1 Lumen second = 1 Candela per square meter

Convert 2 lm·s → cd/m²

1 Lumen second = 1 Nit

Convert 2 lm·s → nt

1 Lumen second = 0.0001 Stilb

Convert 2 lm·s → sb

1 Lumen second = 0.0003141592653587727 Lambert

Convert 2 lm·s → L

1 Lumen second = 0.2918635079290997 Footlambert

Convert 2 lm·s → fL

1 Lumen second = 1 Lux second

Convert 2 lm·s → lx·s

1 Lumen second = 1 Rayleigh

Convert 2 lm·s → R