What Is Polar Curve?

1.	What Is Polar Curve?
Answer» In most lamps or sources of light the LUMINOUS INTENSITY is not the same in all directions. If the luminous intensity, IE, the CANDLE POWER is measured in a horizontal plane about a vertical axis and a curve is plotter between candle power and the angular position, a curve obtained is called as horizontal polar curve. The luminous intensity in all the directions can be represented by polar curves. If the luminous intensity in a vertical plane is plotted against position, a curve known as vertical polar curve.

Answer»

In most lamps or sources of light the LUMINOUS INTENSITY is not the same in all directions.
If the luminous intensity, IE, the CANDLE POWER is measured in a horizontal plane about a vertical axis and a curve is plotter between candle power and the angular position, a curve obtained is called as horizontal polar curve.
The luminous intensity in all the directions can be represented by polar curves.
If the luminous intensity in a vertical plane is plotted against position, a curve known as vertical polar curve.

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