What Is This Tool?
This unit converter helps translate luminance measurements from blondel, an outdated unit, into candela per square centimeter, a contemporary unit commonly used for small, bright emitting surfaces.
How to Use This Tool?
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Enter the luminance value measured in blondel.
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Select blondel as the input unit and candela/square centimeter as the output unit.
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Click convert to view the equivalent luminance in candela per square centimeter.
Key Features
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Converts luminance units from blondel to candela per square centimeter.
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Simplifies translating historical photometric data for modern analysis.
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Browser-based and user-friendly interface for quick conversions.
Examples
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A luminance of 5 blondel converts to 0.000159155 candela per square centimeter.
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A luminance of 10 blondel converts to 0.00031831 candela per square centimeter.
Common Use Cases
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Converting vintage luminance measurements found in early 20th-century photometry literature.
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Comparing legacy data with current display and lighting technologies requiring candela per square centimeter units.
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Analyzing brightness of small, high-intensity light emitting surfaces in engineering and research.
Tips & Best Practices
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Verify the context of historical data to understand the original blondel measurement circumstances.
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Apply conversions carefully when dealing with large surfaces to avoid misinterpretation due to unit suitability.
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Use the converted values in conjunction with modern lighting standards for accurate comparison.
Limitations
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Blondel is an obsolete unit, so original measurements may lack precision.
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Candela per square centimeter is best for small emitting areas; unsuitable scaling for larger surfaces can lead to errors.
Frequently Asked Questions
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What is the blondel unit?
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Blondel is an obsolete photometric unit of luminance named after André Blondel, used mainly in early 20th-century photometry and replaced by candela per square meter.
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When should I convert from blondel to candela per square centimeter?
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When you need to interpret historical luminance data for small, high-intensity emitting surfaces and compare it with modern measurements.
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Is candela per square centimeter an SI unit?
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No, it is a non-SI derived unit commonly used for luminance measurements of small emitting areas.
Key Terminology
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Blondel
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An obsolete photometric unit of luminance used in early 20th-century photometry, named after engineer André Blondel.
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Candela per square centimeter
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A unit of luminance expressing luminous intensity emitted per unit projected area, commonly used for small emitting surfaces.
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Luminance
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A measure of luminous intensity per unit area of light-emitting or reflecting surfaces.