The illuminance calculator is a practical tool that helps you find out how bright an area is, measured in lux (lx). By inputting two essential variables into the calculator, it can estimate the illuminance:
- Luminous Flux (Φ): This parameter is measured in lumens (lm) and represents the total amount of visible light emitted by a light source.
- Surface Area (A): Measured in square meters (m²), this defines the area on which the light is falling.
The illuminance calculator uses the formula E = Φ / A to calculate the illuminance in lux.
Here's the formula breakdown:
- E: The illuminance in lux (lx).
- Φ: The luminous flux in lumens (lm).
- A: The area of the surface in square meters (m²).
Using this calculator, you can easily determine the right amount of light you need for various applications, from home lighting to industrial setups.
Helpful General Terms
To assist you further, here is a table of general terms and units that people often search for in the context of illuminance:
| Term | Definition |
|---|---|
| Illuminance | The measure of how much light illuminates a surface. It is expressed in lux (lx). |
| Luminous Flux | The total amount of visible light emitted by a light source, measured in lumens (lm). |
| Square Meter (m²) | A unit of area measurement often used to define the surface area where illuminance is calculated. |
| Lux (lx) | The SI unit of illuminance, equivalent to one lumen per square meter (lm/m²). |
| Light Source | A device that emits visible light, such as bulbs, LEDs, or natural light sources. |
This table should serve as a quick reference guide for those looking to better understand the terminology surrounding illuminance.
Example of Illuminance Calculator
Let's consider an example to illustrate how the illuminance calculator can be put into action. Imagine you have a workspace with a total luminous flux of 5000 lumens (Φ) and a surface area of 10 square meters (A). To find the illuminance:
- Input Φ = 5000 lm
- Input A = 10 m²
After clicking the 'Calculate' button, you'll get the illuminance value in lux (lx) as the output. In this case, it would be 500 lx.
Most Common FAQs
A1: Luminous flux is determined using specialized equipment designed to measure the total visible light output. Alternatively, you can find this information on the packaging or specifications of most light sources.
A2: Yes, you can. The illuminance calculator can help you determine the appropriate light levels for both indoor and outdoor spaces, making it versatile for various applications.
A3: The recommended illuminance levels vary depending on the setting. For instance, offices typically require around 500 lux, while reading areas may need 1000 lux or more.