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How to Convert from Lumen/square centimeter to Phot [ph]?
Learn how to convert illuminance values from lumen per square centimeter to phot (ph), an older illuminance unit. Understand applications, usage contexts, and examples for effective conversion.
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Lumen/square centimeter to Phot [ph] Conversion Table
| Lumen/square centimeter | Phot [ph] |
|---|
Custom Unit Conversion Table Generator – Instant Printable Conversion Tables
Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.
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Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.
| Lumen/square centimeter | Phot [ph] |
|---|
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What Is This Tool?
This converter allows you to easily change illumination measurements from lumen per square centimeter to phot (ph), both units measuring the brightness on a surface. It is useful for interpreting high illuminance levels using a historically established unit.
How to Use This Tool?
- Enter the illumance value in lumen per square centimeter
- Select the unit ‘lumen/square centimeter’ as the from unit
- Choose ‘phot [ph]’ as the target unit
- Click convert to view the equivalent illuminance in phot
- Use the results to compare or interpret lighting data involving both units
Key Features
- Simple conversion between lumen/cm² and phot units
- Suitable for photometry and lighting engineering applications
- Supports legacy lighting data compatibility
- Browser-based and accessible without installation
- Includes examples for clear understanding
Examples
- 5 lumen/square centimeter equals 5 phot
- 0.1 lumen/square centimeter equals 0.1 phot
Common Use Cases
- Specifying output brightness of high-power LEDs with per square centimeter metrics
- Measuring illuminance on microscope slides or small sensor areas
- Describing very bright lighting such as direct sunlight in older units
- Calibrating or assessing brightness of small optical components
- Interpreting legacy lighting and photographic exposure information
Tips & Best Practices
- Use this converter when working with historical lighting documents or standards
- Consider modern units like lux for current scientific or engineering tasks
- Verify unit compatibility when integrating legacy data with new measurements
- Use phot when dealing with very high illuminance values described in older literature
Limitations
- Phot is a non-SI, outdated unit mainly used for legacy references
- Conversion accuracy may vary when involving other measurement systems
- Modern lighting work generally uses lux instead of phot
- Relevance is limited outside historical or compatibility contexts
Frequently Asked Questions
- What is the relationship between lumen per square centimeter and phot?
- One lumen per square centimeter equals one phot, since both measure illuminance as lumens per square centimeter.
- Why is phot still used if it is non-SI and outdated?
- Phot is used primarily for compatibility with legacy lighting data and historical research.
- Can this tool convert lumen/cm² to lux?
- No, this converter specifically converts between lumen per square centimeter and phot units.
Key Terminology
- Lumen/square centimeter
- An illuminance measure indicating luminous flux in lumens per square centimeter, reflecting perceived brightness weighted by human eye response.
- Phot [ph]
- An older, non-SI unit of illuminance equal to one lumen per square centimetre, historically used to denote high levels of brightness.
- Illuminance
- The amount of luminous flux incident per unit area on a surface, measured in units like lux, lumen/cm², or phot.