En revanche, le candela mesure l'intensité lumineuse dans un angle solide donné. Från denna enhet kan lumen och lux härledas. Φ v(lm) = I v(cd) × Ω (sr). Le lumen mesure un flux total émis, toutes directions confondues. Knowing about the difference between lumens and candelas will help you choose lighting devices that are ideal for your workplace. Candela vs Lumen . For uniform, isotropic light source, the luminous intensity I v in candela (cd) is equal to the luminous flux Φ v in lumens (lm), . Lumens and candela are both lighting measurement units, but they measure different aspects of a lighting device. Candela to lumens calculator Lumens to candela calculation.
Halogenpærer har et svært godt spekter, men kaster bort masse energi i det infrarøde området. Candela is used to measure the luminosity intensity detected by the human eye. De eenheid lumen wordt gebruikt voor de totale lichtstroom in een lichtbundel.
Candela kommer från latin och betyder "vaxljus", "talgljus", vilket avslöjar den ursprungliga betydelsen - en candela var ljusstyrkan för ett vaxljus. The lumen (lm) is a measurement of luminous flux, or the total amount of visible light. I v(cd) = Φ v(lm) / Ω (sr). For uniform, isotropic light source, the luminous flux Φ v in lumens (lm) is equal to the luminous intensity I v in candela (cd), .
This calculator has two text fields and two controls which perform different functions of the calculator. To show the difference between lumens and candela, let’s go back to the example previously used for candela with the partially obscured light bulb. Comparing Lights Using Candela and Lumens - To compare candela versus lumens, it is always useful to understand that these are terms for entirely different properties of light.
Candela and lumen are two units used to measure some properties of light.
The solid angle Ω in steradians (sr) is equal to 2 times pi times 1 minus cosine of half the cone apex angle θ in degrees (°): The candela is related to the lumen and lux units. divided by the solid angle Ω in steradians (sr):.
A light beam with a strength of 1 candela and a space angle of 1 steradian (for a cone-shaped beam corresponds to an opening angle of 65.5 °) has a total luminous flux of 1 lumen.
Candela to Lumens calculator It is a conversion calculator that converts the values in Candela (cd) to lumens (lm). Om ljuskällan utstrålar 1 candela i alla riktningar, är ljusflödet per steradian 1 lumen. Härledda enheter. Candela, Lumen, Lux: the equations Light is measured with different techniques, and therefore there is a handful of related, but different, units of measurements. 1 candela is dus gelijk aan 1 lumen per steradiaal. To put it simply, the lumen rating is how much total visible light is produced by a light source.
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