What does lumen/sq. cm/steradian measure?

It is a photometric unit representing luminous flux per unit area per unit solid angle, equivalent to candela per square centimetre.

Why convert lumen/sq. cm/steradian to lambert?

Converting allows expressing luminance in a traditional CGS unit for optical and photographic contexts, as well as comparing historical photometric data.

Is lambert a standard SI unit?

No, lambert is a non-SI (CGS) unit primarily used in certain optical and photographic fields.

How to Convert from Lumen/sq. cm/steradian to Lambert [L]

Learn how to accurately convert luminance values from lumen/sq. cm/steradian to the non-SI unit lambert [L] using a reliable conversion factor and understand their practical applications.

Lumen/sq. cm/steradian

Lambert [L]

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Lumen/sq. cm/steradian to Lambert [L] Conversion Table

Lumen/sq. cm/steradian	Lambert [L]

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Start Value

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.

End Value

Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.

Interval

Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.

Lumen/sq. cm/steradian to Lambert [L] Conversion Table
Lumen/sq. cm/steradian	Lambert [L]

Explore More Luminance Units Converter

What Is This Tool?

This tool converts luminance measurements given in lumen per square centimetre per steradian to lambert units. It helps translate photometric data between these two units commonly used in optical engineering, photography, and illumination design.

How to Use This Tool?

Enter the luminance value in lumen/sq. cm/steradian
Select lambert [L] as the target unit
Click convert to get the equivalent luminance in lamberts
Use the converted value for further optical or photometric analysis

Key Features

Converts lumen/sq. cm/steradian to lambert [L]
Supports luminance measurements for small-area and intense light sources
Uses a precise conversion factor based on established photometric relations
Suitable for optical engineering, cinema, projection, and photographic uses

Examples

2 lumen/sq. cm/steradian equals approximately 6.283 lambert [L]
0.5 lumen/sq. cm/steradian equals approximately 1.571 lambert [L]

Common Use Cases

Characterizing brightness of micro-LED and OLED emitters
Designing and measuring lenses and illumination systems at small areas
Calibrating luminance meters for high-intensity samples
Comparing historical photometric data with modern SI units
Specifying surface brightness in cinema and photographic printing

Tips & Best Practices

Ensure precise input values for accurate conversion results
Use lambert units mainly for legacy data or specific optical contexts
Apply careful calibration when converting measurements of high-brightness or very small areas
Understand the relationship between SI and CGS units when interpreting results

Limitations

Lambert is a non-SI unit which may complicate workflows centered on SI units
Use of lambert is generally restricted to legacy data or specialized fields
High-brightness and small-area measurements need careful calibration during conversion

Frequently Asked Questions

What does lumen/sq. cm/steradian measure?: It is a photometric unit representing luminous flux per unit area per unit solid angle, equivalent to candela per square centimetre.
Why convert lumen/sq. cm/steradian to lambert?: Converting allows expressing luminance in a traditional CGS unit for optical and photographic contexts, as well as comparing historical photometric data.
Is lambert a standard SI unit?: No, lambert is a non-SI (CGS) unit primarily used in certain optical and photographic fields.

Key Terminology

Lumen/sq. cm/steradian: A photometric luminance unit quantifying luminous flux per unit area and solid angle, equivalent to candela per square centimetre.
Lambert [L]: A non-SI CGS luminance unit equal to 1/π candela per square centimetre, used for self-luminous and diffusely reflecting surfaces.
Candela: The SI base unit of luminous intensity, representing luminous flux per unit solid angle.

Quick Knowledge Check

What does 1 lumen/sq. cm/steradian equal in lamberts?

Approximately 1 lambert

Approximately 3.14 lamberts

Approximately 10 lamberts

Which unit describes luminance using luminous flux per area and solid angle?

Lambert

Lumen/sq. cm/steradian

Candela per steradian

In which scenario is lambert commonly used?

Modern SI-based photometric measurements

Optical engineering and photographic printing

General illumination measurements

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