Convert 2 Phot to Lumen second - Light

Phot

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Phot Unit Table

A list of units symbol and data.
From ph	To lm·s	All conversion
1 ph	10000 lm·s
2 ph	20000 lm·s
3 ph	30000 lm·s
4 ph	40000 lm·s
5 ph	50000 lm·s
6 ph	60000 lm·s
7 ph	70000 lm·s
8 ph	80000 lm·s
9 ph	90000 lm·s
10 ph	100000 lm·s

Description

Phot (ph): CGS Unit of Illuminance

The phot is a unit of illuminance in the centimeter-gram-second (CGS) system, where one phot equals 10,000 lux. Although it is not commonly used in modern applications, the phot provides a historical reference point for high-intensity lighting measurements, particularly in scientific research and specialized fields.

While the SI unit lux has largely supplanted the phot, familiarity with this unit can be beneficial when interpreting older scientific literature or working within specific contexts where CGS units are still in use. Recognizing the conversion between phot and lux ensures accurate understanding and communication of illuminance values.

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.

Complete list of conversion for Phot

Phot (ph)

1 Phot = 10000 Candela

Convert 2 ph → cd

1 Phot = 10000 Candlepower

Convert 2 ph → cp

1 Phot = 10000 Lumen

Convert 2 ph → lm

1 Phot = 10000 Lux

Convert 2 ph → lx

1 Phot = 929.0312990644655 Footcandle

Convert 2 ph → fc