Online Luminance Units Converter
How to Convert from Millilambert [mL] to Blondel?

How to Convert from Millilambert [mL] to Blondel?

Learn how to convert luminance values from millilambert (mL) to the obsolete blondel unit. Understand their definitions, use cases, and conversion formula to work with legacy photometric data effectively.

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Millilambert [mL] to Blondel Conversion Table

Millilambert [mL] Blondel

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.
Millilambert [mL] to Blondel Conversion Table
Millilambert [mL] Blondel

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What Is This Tool?

This converter allows you to transform luminance measurements from millilambert (mL), a unit used in cinematography and photographic imaging, to the blondel, an early 20th-century obsolete photometric unit. It helps in interpreting and reconciling historic luminance data with modern standards.

How to Use This Tool?

  • Enter the luminance value in millilambert (mL)
  • Select millilambert as the input unit and blondel as the output unit
  • Click the convert button to see the equivalent value in blondel
  • Use results to analyze or calibrate legacy luminance measurements

Key Features

  • Converts luminance values from millilambert (mL) to blondel quickly and accurately
  • Supports legacy data interpretation in imaging, cinematography, and lighting engineering
  • Uses a straightforward conversion formula: 1 millilambert equals 10 blondel
  • Browser-based and easy to use without installation

Examples

  • 2 millilambert [mL] equals 20 blondel
  • 0.5 millilambert [mL] converts to 5 blondel

Common Use Cases

  • Specifying display and projector screen luminance in cinematography and broadcast engineering
  • Characterizing photographic prints, film, and lightbox luminance in imaging laboratories
  • Converting historical or obsolete luminance measurements to enable comparison with modern units
  • Researching early photometric data and lighting engineering literature

Tips & Best Practices

  • Always confirm the context of your legacy luminance data before conversion
  • Use the conversion formula 1 mL = 10 blondel for straightforward linear conversions
  • Cross-reference converted results with SI units such as candela per square metre for precision
  • Be mindful of differences in historical measurement standards when analyzing results

Limitations

  • Both millilambert and blondel are obsolete units replaced by candela per square metre in SI
  • Conversions assume linear relationships but may vary due to historic measurement context
  • Accuracy depends on understanding legacy definitions and may require supplementary calibration

Frequently Asked Questions

What is a millilambert?
A millilambert (mL) is a non-SI unit of luminance equal to one thousandth of a lambert. It measures luminous intensity per unit area into a unit solid angle and is used mainly in cinematography and imaging labs.

What does the blondel measure?
The blondel is an obsolete photometric unit of luminance named after André Blondel, formerly used in early 20th-century photometry to assess the brightness of surfaces before SI units became standard.

What is the conversion rate between millilambert and blondel?
The conversion rate is 1 millilambert equals 10 blondel, allowing users to convert legacy luminance data for comparison with historical standards.

Key Terminology

Millilambert (mL)
A non-SI luminance unit equal to one thousandth of a lambert, used to quantify luminous intensity per unit area.
Blondel
An obsolete luminance unit named after André Blondel, formerly used in early 20th-century photometry.
Luminance
A measure of luminous intensity emitted or reflected from a surface per unit area into a unit solid angle.

Quick Knowledge Check

What is the conversion factor from millilambert to blondel?
Which unit is considered obsolete and named after a French engineer?
In which fields is millilambert commonly used?