Phot to Lumen per Square Centimeter Conversion

Convert between Phot and Lumen per Square Centimeter quickly and accurately.

From Phot

To Lumen per Square Centimeter

lm/cm²

How to Convert Phot to Lumen per Square Centimeter

Conversion Formula

1 ph = 1 lm/cm²

1 lm/cm² = 1 ph

Example

Convert 15 ph to lm/cm²:

15 ph = 15 × 1 lm/cm² = 15 lm/cm²

Unit Information

Learn about the illumination units you're converting between

Phot

Definition

The Phot is a CGS unit of illuminance equal to 10,000 lux, representing one lumen per square centimeter. It is a larger unit used for measuring very high levels of illumination, particularly in scientific and technical applications where high light intensities are common.

History/Origin

Developed as part of the CGS system of units, where the phot provided a convenient way to express high illumination values. It was widely used in scientific literature and technical applications before the adoption of SI units became standard practice.

Current Use

Primarily found in older scientific literature and specialized technical applications. It provides a practical scale for measuring very bright light sources and is still occasionally referenced in photometric research and historical technical documents.

Multiplier

10000

Offset

Lumen per Square Centimeter

lm/cm²

Definition

The Lumen per Square Centimeter is a unit of illuminance equal to 10,000 lux, representing the luminous flux per unit area using the centimeter as the area unit. It is used for measuring very high levels of illumination, particularly in concentrated light sources or small area applications.

History/Origin

Developed as part of the CGS system where smaller area units were commonly used. It provides a convenient way to express high illumination values without using very large numbers, particularly useful in scientific and technical applications.

Current Use

Used in specialized applications requiring measurement of very high illumination levels, such as laser technology, concentrated light sources, or scientific research involving intense light fields. It provides a practical scale for quantifying high-intensity illumination.

Multiplier

10000

Offset