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Convert Lumen/steradian to Candle (UK) - Luminous Intensity Converter
Easily convert luminous intensity from lumen per steradian (lm/sr) to the historical British candle (UK) unit (c UK). Understand the relationship, use cases, and conversion details for photometric applications and historical research.
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Lumen/steradian [lm/sr] to Candle (UK) [c (UK)] Conversion Table
| Lumen/steradian [lm/sr] | Candle (UK) [c (UK)] |
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Custom Unit Conversion Table Generator – Instant Printable Conversion Tables
Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.
Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.
Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.
| Lumen/steradian [lm/sr] | Candle (UK) [c (UK)] |
|---|
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What Is This Tool?
This converter allows transforming luminous intensity values from lumen per steradian (lm/sr), a modern SI unit, to the candle (UK) unit, an obsolete British measure. It helps translate contemporary light intensity data into historical terms used before the candela standard.
How to Use This Tool?
- Enter the luminous intensity value in lumen per steradian (lm/sr)
- Select the target unit as candle (UK) [c (UK)]
- Click convert to obtain the corresponding value in candle (UK)
- Use the result to compare or analyze lighting intensities in historical context
Key Features
- Converts luminous intensity from lumen/steradian to candle (UK)
- Supports interpretation of historical British lighting measurements
- Useful for restoring period-accurate lighting in museums and theaters
- Browser-based and easy to use with instant calculations
Examples
- 5 lm/sr converts to 4.8 candle (UK)
- 10 lm/sr converts to 9.6 candle (UK)
Common Use Cases
- Interpreting historical lighting specifications from British archives
- Reproducing authentic illumination levels in historic building restorations
- Comparing vintage light sources with modern measurements
- Converting early photometric data for analysis using current units
Tips & Best Practices
- Understand the historical context of candle (UK) unit when interpreting results
- Use modern units like lumen/steradian or candela for precise scientific work
- Apply the conversion for museum and theatrical lighting restoration projects
- Cross-check converted values when dealing with critical photometric evaluations
Limitations
- The candle (UK) unit is obsolete and varied historically due to its candle definition
- Modern measurements rely on standardized units like lumen/steradian or candela
- Conversion results may not reflect exact precision needed for scientific analysis
- Consider the context before applying conversions in critical photometric tasks
Frequently Asked Questions
- What does lumen per steradian measure?
- Lumen per steradian measures luminous intensity, representing the visible light power emitted per unit solid angle, and equals the candela in SI units.
- Why is the candle (UK) unit considered obsolete?
- The candle (UK) is obsolete because it was based on a standard candle with specific physical characteristics used before adopting the candela, and its definition varied historically.
- When should I use this conversion tool?
- Use this tool when interpreting historical British photometric data, restoring period lighting, or comparing vintage light sources to modern equivalents.
Key Terminology
- Lumen/steradian [lm/sr]
- A unit of luminous intensity equal to one candela, representing luminous flux per unit solid angle.
- Candle (UK) [c (UK)]
- An obsolete British unit of luminous intensity based on a standard candle used in historical photometric practice.
- Luminous intensity
- The amount of visible light power emitted in a particular direction per unit solid angle.