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Lighting Calculation 17

The document discusses three methods for calculating typical light levels: a rough Watts/sq.m method, a lumen method for general lighting in open areas, and a point-by-point computer method that determines light levels at specific points and is most complicated.

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Ratana Kem
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79 views1 page

Lighting Calculation 17

The document discusses three methods for calculating typical light levels: a rough Watts/sq.m method, a lumen method for general lighting in open areas, and a point-by-point computer method that determines light levels at specific points and is most complicated.

Uploaded by

Ratana Kem
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Typical Calculations

• Predict general & ambient light levels


• Rough estimation based on a Watts/sq.m method
• Not very accurate, but good for prelim. planning
• Lumen method calculations (light flux method)
• Determines average illuminance in large open areas
• Good for general lighting
• Point-by-point computer calculations
• Determines light levels at a specific point on an object
or surface; complicated, start from fundamental laws
• Can be used for outdoor lighting

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