Question
Download Solution PDFWhich of the following methods of lighting calculation can be used for rough calculations and checking purposes?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFMethods for calculating the Illumination of Light
The three main methods are as follows:
1.) Watt per Square Meter Method
- The watt-per-square meter method is fundamentally a rule-of-thumb method.
- This method is used for rough calculations and checking purposes.
- It entails allocating watts per square meter of the area to be illuminated in accordance with the desired illumination, based on an average figure of overall system efficiency.
2.) Lumen Method
- The lumen method is also called the light flux method.
- It is the method employed for lighting calculation that is applicable to those cases where the sources of light are such as to produce an approximate uniform illumination over the working plane or where an average value is required.
3.) Inverse Square Law Method
- The inverse square law method is also known as a point-to-point method.
- It is applicable where illumination at a point due to one or more sources of light is required. Though, the candle power of the sources in the particular direction under consideration is known.
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