Phot
Enter a value and select units to convert.
Switch lx to ph
Phot Unit Table
A list of units symbol and data.
From phTo lxAll conversion
1 ph10000 lx
2 ph20000 lx
3 ph30000 lx
4 ph40000 lx
5 ph50000 lx
6 ph60000 lx
7 ph70000 lx
8 ph80000 lx
9 ph90000 lx
10 ph100000 lx
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 Although it is not commonly used in modern applications, the phot provides a historical reference point for high-intensity lighting measurements, particularly in scientific research and specialized fields.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.

Lux (lx): Assessing Illuminance Levels

Lux is the SI unit of illuminance, representing the amount of luminous flux (in lumens) incident on a surface per unit area. One lux equals one lumen per square meter. This measurement is vital for determining how well-lit a surface or area is, considering both the intensity of the light source and the distance from it.

Accurate lux measurements are essential in various fields, including architecture, photography, and occupational health, to ensure appropriate lighting conditions. For instance, recommended lux levels vary depending on the task and environment, with higher levels required for detailed work and lower levels for general areas. Monitoring and adjusting lux levels contribute to visual comfort, safety, and energy efficiency.

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

1 Phot = 10000 Candela per square meter

Convert 2 ph → cd/m²

1 Phot = 10000 Nit

Convert 2 ph → nt

1 Phot = 1 Stilb

Convert 2 ph → sb

1 Phot = 3.141592653587727 Lambert

Convert 2 ph → L

1 Phot = 2918.635079290997 Footlambert

Convert 2 ph → fL

1 Phot = 10000 Lumen second

Convert 2 ph → lm·s

1 Phot = 10000 Lux second

Convert 2 ph → lx·s

1 Phot = 10000 Rayleigh

Convert 2 ph → R