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Candle Light To Lumens Formula:
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The candle light to lumens conversion calculates the total luminous flux (in lumens) from the candle power and solid angle. This conversion is essential in lighting design and photometry to quantify the total light output.
The calculator uses the formula:
Where:
Explanation: The formula converts candle power (luminous intensity in a specific direction) to total luminous flux by accounting for the solid angle over which the light is distributed.
Details: Accurate light measurement is crucial for lighting design, energy efficiency calculations, and ensuring proper illumination for various applications from residential to industrial settings.
Tips: Enter candle power in cp and solid angle in steradians. Both values must be positive numbers for accurate calculation.
Q1: What is candle power?
A: Candle power is a measurement of luminous intensity, representing the amount of light produced in a specific direction.
Q2: What is solid angle?
A: Solid angle is the 3D equivalent of a 2D angle, measured in steradians (sr), representing the area on a sphere's surface divided by the square of the sphere's radius.
Q3: How is this conversion useful?
A: This conversion helps lighting designers and engineers calculate total light output from directional intensity measurements, important for designing efficient lighting systems.
Q4: Are there limitations to this calculation?
A: This calculation assumes uniform light distribution within the solid angle and may not account for variations in intensity across different directions.
Q5: What are typical values for candle power?
A: Candle power values vary widely depending on the light source, from less than 1 cp for small LEDs to thousands of cp for high-intensity discharge lamps.