What does lumen per square foot per steradian measure?

It measures luminance as luminous flux per unit area per unit solid angle, indicating the brightness of a surface in a particular direction using foot-based area units.

Why convert luminance to candela per square inch?

Because candela per square inch is used to specify brightness for small displays and instrument panels where area is measured in inches, facilitating accurate brightness characterization.

Can I use this conversion for all luminance measurements?

This conversion is ideal for applications involving customary foot and inch units, but care should be taken for very large or very small surface areas due to unit differences.

How to Convert from Lumen/square foot/steradian to Candela/square inch?

Easily convert luminance values from lumen per square foot per steradian to candela per square inch using our practical online converter. Suitable for lighting design, display brightness evaluation, and photometric measurements.

Lumen/square foot/steradian

Candela/square inch

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

Lumen/square foot/steradian to Candela/square inch Conversion Table

Lumen/square foot/steradian	Candela/square inch

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/square foot/steradian to Candela/square inch Conversion Table
Lumen/square foot/steradian	Candela/square inch

Explore More Luminance Units Converter

What Is This Tool?

This tool converts luminance measurements from lumen per square foot per steradian to candela per square inch, allowing users to translate brightness values between different customary units used in lighting and display industries.

How to Use This Tool?

Enter the luminance value in lumen per square foot per steradian
Select the target unit as candela per square inch
Click convert to obtain the luminance in candela per square inch
Review the result and use it for your lighting or display brightness assessments

Key Features

Converts luminance values between two specific customary units efficiently
Supports brightness specifications relevant to architectural and display lighting
Includes practical examples for easy reference
Browser-based and user friendly with no installation required
Useful for converting measurements in photometry and instrument panel brightness

Examples

10 lumen/square foot/steradian converts to 0.069444444 candela/square inch
50 lumen/square foot/steradian converts to 0.34722222 candela/square inch

Common Use Cases

Determining brightness levels for signs, billboards, and outdoor displays using foot-based units
Assessing glare control and visual comfort in architectural lighting projects
Specifying display brightness for CRTs and certain flat-panel screens
Evaluating backlight brightness in avionics and automotive instrument panels
Calibrating luminance measurements for photometric instruments reporting in customary units

Tips & Best Practices

Ensure consistent measurement conditions such as angle and distance when converting
Use the tool to compare luminance values across different units accurately
Apply conversion carefully when dealing with very large or very small surface areas
Understand the context and units used in your specific industry for precise interpretation
Cross-check results when applying conversions in critical calibration or design tasks

Limitations

Lumen per square foot per steradian is a non-SI unit and may have precision constraints
Candela per square inch measures luminance over smaller surface areas which may not suit very large objects
Conversion accuracy depends on maintaining consistent measurement geometry and conditions

Frequently Asked Questions

What does lumen per square foot per steradian measure?: It measures luminance as luminous flux per unit area per unit solid angle, indicating the brightness of a surface in a particular direction using foot-based area units.
Why convert luminance to candela per square inch?: Because candela per square inch is used to specify brightness for small displays and instrument panels where area is measured in inches, facilitating accurate brightness characterization.
Can I use this conversion for all luminance measurements?: This conversion is ideal for applications involving customary foot and inch units, but care should be taken for very large or very small surface areas due to unit differences.

Key Terminology

Lumen/square foot/steradian: A unit of luminance measuring luminous flux per unit area per unit solid angle using foot-based area units, equivalent to candelas per square foot.
Candela/square inch: A luminance unit indicating luminous intensity per square inch of surface, commonly used in photometric and display engineering.
Luminance: The measure of visible light emitted, reflected, or transmitted by a surface in a specific direction, indicating perceived brightness.

Quick Knowledge Check

Which unit is equivalent to lumen/square foot/steradian?

Candela per square inch

Candela per square foot

Lumen per square inch

In which industry is candela per square inch commonly used?

Architecture lighting design

Display and instrument panel brightness

Outdoor billboard lighting

What is an important consideration when converting luminance units?

Using different lighting conditions

Maintaining measurement angle and distance

Ignoring surface size

Share Us

Similar Calculators

Online Temperature Interval Units Converter Online Temperature Units Converter Online Heat Flux Density Units Converter Online Volume Dry Units Converter Online Heat Density Units Converter