Lumen per Square Centimeter to Phot Conversion

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

lm/cm²
ph

How to Convert Lumen per Square Centimeter to Phot

Conversion Formula

1 lm/cm² = 1 ph
1 ph = 1 lm/cm²

Example

Convert 15 lm/cm² to ph:

15 lm/cm² = 15 × 1 ph = 15 ph

Unit Information

Learn about the illumination units you're converting between

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

0

Phot

ph

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

0

Lumen per Square Centimeter to Phot Conversion Table

Lumen per Square Centimeter [lm/cm²] Phot [ph]
1 lm/cm² 1 ph
10 lm/cm² 10 ph
25 lm/cm² 25 ph
50 lm/cm² 50 ph
100 lm/cm² 100 ph
0 lm/cm² 0E+0 ph
-10 lm/cm² -10 ph
-40 lm/cm² -40 ph