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Convert Watt/sq. cm (at 555 nm) to Meter-candle [m*c] Online
Easily convert radiometric irradiance measured in watt per square centimeter at 555 nm to meter-candle units, a classic illuminance measurement equivalent to lux. Ideal for lighting design, photometry calibration, and vision science applications.
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Watt/sq. cm (at 555 nm) to Meter-candle [m*c] Conversion Table
| Watt/sq. cm (at 555 nm) | Meter-candle [m*c] |
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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.
Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.
Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.
| Watt/sq. cm (at 555 nm) | Meter-candle [m*c] |
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What Is This Tool?
This converter transforms monochromatic irradiance values measured in watt per square centimeter at 555 nm into meter-candle, a traditional unit of illuminance equal to lux. It serves users needing to convert radiometric data into photometric illuminance units relevant for lighting standards and scientific experiments.
How to Use This Tool?
- Enter the irradiance value in watt per square centimeter at the specific wavelength of 555 nm.
- Select the unit 'watt/sq. cm (at 555 nm)' as the input measurement.
- Choose 'meter-candle [m*c]' as the desired output unit.
- Click the convert button to obtain the equivalent illuminance value in meter-candle.
Key Features
- Converts watt/sq. cm (at 555 nm) measurements to meter-candle units quickly and accurately.
- Supports calibration of photometers and translation of radiometric to photometric values using luminous efficacy.
- Browser-based and simple to use with straightforward input and output fields.
- Applicable for use in lighting design, vision science, and photobiological safety testing.
Examples
- Convert 0.5 watt/sq. cm (at 555 nm) to meter-candle: results in 3,415,000 meter-candle [m*c].
- Convert 0.001 watt/sq. cm (at 555 nm) to meter-candle: results in 6,830 meter-candle [m*c].
Common Use Cases
- Calibrating light sources and photometers for lighting design and standards compliance.
- Measuring monochromatic stimulus intensity in vision science and psychophysical research.
- Setting and verifying exposure limits for green optical sources in photobiological safety tests.
- Interpreting lighting levels reported in historical illumination literature using meter-candle units.
Tips & Best Practices
- Ensure the irradiance measurement is taken precisely at 555 nm wavelength for correct conversion.
- Use meter-candle values for comparison with historical data but prefer lux in modern applications.
- Apply this tool when translating radiometric units to photometric illuminance to maintain measurement consistency.
Limitations
- The conversion is only valid for measurements specifically at 555 nm due to the luminous efficiency peak.
- Meter-candle is a legacy illuminance unit; newer standards typically recommend lux.
- Conversion accuracy depends on monochromatic irradiance data at exactly 555 nm to apply the luminous efficacy factor.
Frequently Asked Questions
- What does watt/sq. cm (at 555 nm) measure?
- It measures radiant power per unit area at the wavelength 555 nm, a radiometric irradiance unit linked to photopic luminous efficiency.
- What is the meter-candle unit?
- Meter-candle is an older illuminance unit equivalent to one lumen per square meter, numerically equal to the lux.
- Why is the wavelength 555 nm important in this conversion?
- 555 nm corresponds to the peak of the photopic luminous-efficiency function, enabling conversion from radiant power to photometric illuminance.
Key Terminology
- Watt/sq. cm (at 555 nm)
- A radiometric irradiance unit measuring radiant power per square centimeter at the 555 nm wavelength, used to represent monochromatic irradiance linked to photopic vision.
- Meter-candle [m*c]
- A traditional illuminance unit equal to one lumen per square meter, numerically identical to the SI unit lux.
- Luminous efficacy
- A factor (683 lm/W) used to convert radiometric power at 555 nm to photometric illuminance based on the eye's sensitivity peak.