What is lumen/square foot/steradian?

It is a non-SI luminance unit representing luminous flux per unit area per unit solid angle, used mainly in U.S. customary photometry.

Why convert to skot if it is obsolete?

Skot is useful for interpreting historical low-light luminance data and calibrating legacy measurements with modern units.

Can I use this tool for modern lighting measurements?

This converter is intended for legacy or research purposes; modern measurements typically use SI units like candela per square meter.

How to Convert from Lumen/square foot/steradian to Skot

Convert luminance measurements from lumen/square foot/steradian to skot with this easy-to-use online unit converter designed for lighting and vision science applications.

Lumen/square foot/steradian

Skot

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

Lumen/square foot/steradian to Skot Conversion Table

Lumen/square foot/steradian	Skot

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 Skot Conversion Table
Lumen/square foot/steradian	Skot

Explore More Luminance Units Converter

What Is This Tool?

This converter transforms luminance values measured in lumen/square foot/steradian, a customary unit expressing visible light per unit area and solid angle, into skot, an obsolete photometric unit for very low luminance levels related to scotopic vision.

How to Use This Tool?

Enter the luminance value in lumen/square foot/steradian
Select the output unit as skot
Initiate the conversion process to see the equivalent luminance in skot
Use the results for low-light or historical data analysis

Key Features

Converts luminance from lumen/square foot/steradian to skot seamlessly
Supports interpretation of low-light luminance data within historical and modern contexts
Helps compare legacy photometric data with current SI-based measurements
Browser-based tool with straightforward input and output options

Examples

2 lumen/square foot/steradian converts to 67631.643778006 skot
0.5 lumen/square foot/steradian converts to 16907.9109445015 skot

Common Use Cases

Measuring brightness of signs and billboards using customary units
Performing lighting design and glare control with foot-based measurements
Converting photometer data to understand low-light luminance in historical research
Comparing or calibrating older low-luminance data in vision science

Tips & Best Practices

Ensure input values are in lumen/square foot/steradian for accurate results
Use the converter primarily for interpreting or comparing legacy low-light data
Be cautious of large conversion numbers due to different unit scales
Consider modern SI units for current practical lighting measurements

Limitations

Skot is an obsolete unit no longer in current standards or practice
Conversion outputs can be very large and require careful handling
Modern lighting and vision work mostly use SI units, limiting skot’s relevance

Frequently Asked Questions

What is lumen/square foot/steradian?: It is a non-SI luminance unit representing luminous flux per unit area per unit solid angle, used mainly in U.S. customary photometry.
Why convert to skot if it is obsolete?: Skot is useful for interpreting historical low-light luminance data and calibrating legacy measurements with modern units.
Can I use this tool for modern lighting measurements?: This converter is intended for legacy or research purposes; modern measurements typically use SI units like candela per square meter.

Key Terminology

Lumen/square foot/steradian: A luminance unit showing luminous flux per square foot per steradian, equivalent to candelas per square foot.
Skot: An outdated photometric unit for very low luminance values related to scotopic vision, replaced by SI units.
Luminance: The measure of visible light emitted or reflected from a surface in a particular direction.

Quick Knowledge Check

What does lumen/square foot/steradian measure?

Luminous flux per unit solid angle only

Luminous flux per unit area per unit solid angle

Electrical power consumption

Why might someone convert luminance to skot?

To report modern high-luminance readings

To analyze historical low-light data

To measure daylight brightness

What is a key limitation of using skot?

It is too precise for practical use

It is obsolete and rarely used in current standards

It is a SI unit

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