What does candela per square inch measure?

It measures the luminous intensity per unit area emitted or reflected from a surface, with area measured in square inches for luminance quantification.

Why convert candela/square inch to lumen/sq. cm/steradian?

Converting allows translation from imperial to SI units, enabling compatibility with modern optical and photometric applications requiring metric luminance units.

Does this conversion account for all emission angles?

No, the conversion assumes uniform luminance and may not fully address complex angular distribution patterns.

How to Convert from Candela/square inch to Lumen/sq. cm/steradian?

Learn how to convert luminance values from candela per square inch to lumen per square centimetre per steradian. This guide covers unit definitions, use cases, conversion steps, and practical examples for photometric applications.

Candela/square inch

Lumen/sq. cm/steradian

Please check your input. It must be a valid numeric value.

Candela/square inch to Lumen/sq. cm/steradian Conversion Table

Candela/square inch	Lumen/sq. cm/steradian

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.

Candela/square inch to Lumen/sq. cm/steradian Conversion Table
Candela/square inch	Lumen/sq. cm/steradian

Explore More Luminance Units Converter

What Is This Tool?

This converter helps transform luminance measurements expressed in candela per square inch into lumen per square centimetre per steradian, facilitating compatibility between imperial and metric photometric units commonly used in display engineering and optical design.

How to Use This Tool?

Enter the luminance value in candela per square inch into the input field
Select 'candela/square inch' as the from-unit
Select 'lumen/sq. cm/steradian' as the to-unit
Click the convert button to see the equivalent value
Review the result displayed in lumen per square centimetre per steradian

Key Features

Converts luminance values from candela/square inch to lumen/sq. cm/steradian
Supports photometric measurements for display and optical engineering
Provides simple and straightforward input and output unit selection
Includes example conversions for quick reference
Browser-based tool accessible without installation

Examples

Converting 5 candela/square inch results in 0.775 lumen/sq. cm/steradian
10 candela/square inch equals 1.55 lumen/sq. cm/steradian

Common Use Cases

Specifying brightness for CRTs and some early flat-panel screens
Describing luminance of instrument panels, avionics, or automotive backlights
Characterizing brightness of small luminous indicators and lamp faces measured in inches
Evaluating high-brightness light sources and pixels such as micro-LED or OLED emitters
Conducting optical design and photometric measurements for lenses and illumination systems
Calibrating and testing luminance meters for small-area or high-intensity samples

Tips & Best Practices

Ensure area measurements are precise in square inches and square centimetres before conversion
Use uniform luminance distributions for reliable conversion results
Pay attention to correct handling of solid angle units (steradians) when interpreting converted values

Limitations

Conversion accuracy relies on exact area measurements
May not account for complex angular emission patterns affecting luminance
Requires careful management of steradian units when applying results

Frequently Asked Questions

What does candela per square inch measure?: It measures the luminous intensity per unit area emitted or reflected from a surface, with area measured in square inches for luminance quantification.
Why convert candela/square inch to lumen/sq. cm/steradian?: Converting allows translation from imperial to SI units, enabling compatibility with modern optical and photometric applications requiring metric luminance units.
Does this conversion account for all emission angles?: No, the conversion assumes uniform luminance and may not fully address complex angular distribution patterns.

Key Terminology

Candela/square inch: A luminance unit measuring luminous intensity per square inch of surface area, used in display and instrument brightness specifications.
Lumen/sq. cm/steradian: A photometric luminance unit expressing luminous flux per square centimetre per steradian, equivalent to candela per square centimetre.
Steradian: The SI unit of solid angle measuring the three-dimensional angle over a sphere, used in luminous intensity calculations.

Quick Knowledge Check

Which unit measures luminous intensity per square inch?

Lumen/sq. cm/steradian

Candela/square inch

Candela per square metre

Why is lumen/sq. cm/steradian used in photometric design?

Because it uses imperial units

Because it quantifies luminance per unit area and solid angle

Because it measures illuminance

What must users consider when converting luminance units?

Color temperature only

Handling of steradian units and area accuracy

Time of day

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