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How to Convert from Watt/sq. cm/steradian (at 555 nm) to Kilocandela/square meter?
Learn how to convert luminance units from watt per square centimeter per steradian at 555 nm to kilocandela per square meter with a detailed explanation and usage examples.
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Watt/sq. cm/steradian (at 555 nm) to Kilocandela/square meter Conversion Table
| Watt/sq. cm/steradian (at 555 nm) | Kilocandela/square meter |
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Custom Unit Conversion Table Generator – Instant Printable Conversion Tables
Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.
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| Watt/sq. cm/steradian (at 555 nm) | Kilocandela/square meter |
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What Is This Tool?
This unit converter helps transform luminance measurements from watt per square centimeter per steradian at 555 nm to kilocandela per square meter. It is used to relate radiometric spectral radiance at the human eye's peak sensitivity to photometric luminance values for practical applications.
How to Use This Tool?
- Enter the value in watt per square centimeter per steradian at 555 nm you want to convert.
- Select the 'watt/sq. cm/steradian (at 555 nm)' as the original unit.
- Choose 'kilocandela/square meter' as the target unit.
- Click the convert button to get the equivalent luminance in kilocandelas per square meter.
Key Features
- Converts luminance units specifically at the 555 nm wavelength peak of human vision.
- Supports conversion from radiometric spectral radiance to photometric luminance.
- Uses a standardized conversion rate to relate watt/sq. cm/steradian to kilocandela/square meter.
- Ideal for optical metrology, vision research, and display brightness specifications.
Examples
- 0.5 watt/sq. cm/steradian (at 555 nm) converts to 3415 kilocandela/square meter.
- 2 watt/sq. cm/steradian (at 555 nm) converts to 13660 kilocandela/square meter.
- Use the conversion formula: 1 watt/sq. cm/steradian (at 555 nm) equals 6830 kilocandela/square meter.
Common Use Cases
- Characterizing the brightness of small-area light sources or displays at the photopic peak wavelength.
- Converting radiometric radiance measurements to photometric luminance for human vision applications.
- Specifying peak luminance levels for HDR displays, automotive HUDs, and outdoor LED signage.
Tips & Best Practices
- Ensure measurement instruments are calibrated specifically at 555 nm for accurate conversion.
- Use this conversion only when dealing with photopic lighting conditions aligned with human visual sensitivity.
- Double-check unit selections before converting to avoid errors in luminance specifications.
Limitations
- Conversion applies strictly at the wavelength of 555 nm and may not be accurate for other wavelengths.
- Relies on the luminous efficiency function of human vision, limiting use in non-photopic or non-human vision contexts.
- Accuracy depends on precise instrument calibration at the specified wavelength.
Frequently Asked Questions
- Why is the wavelength 555 nm important in this conversion?
- The 555 nm wavelength corresponds to the peak of human photopic visual sensitivity, allowing radiometric measurements to be related to perceived brightness.
- Can I use this converter for other wavelengths besides 555 nm?
- No, the conversion is specifically designed for 555 nm and may not yield accurate results for different wavelengths.
- What does kilocandela per square meter measure?
- Kilocandela per square meter measures luminance, or the luminous intensity emitted or reflected from a surface per unit projected area.
Key Terminology
- Watt/sq. cm/steradian (at 555 nm)
- A radiometric measure of spectral radiance at the 555 nm wavelength, expressed as radiant power per unit area per unit solid angle.
- Kilocandela/square meter
- A photometric unit measuring luminance, equal to 1000 candelas per square meter, indicating brightness perceived from a surface.
- Luminous efficiency
- The function describing human visual sensitivity contributing to the conversion between radiometric and photometric units at 555 nm.