A lighting method of our country is ordinary center concentration form. Therefore, it is usually used the Five Point Method, Multiplicity Method of KS, and Four Point Method of IES to measure a space illuminance. We can use the Five Point Method of ...
A lighting method of our country is ordinary center concentration form. Therefore, it is usually used the Five Point Method, Multiplicity Method of KS, and Four Point Method of IES to measure a space illuminance. We can use the Five Point Method of KS when we measure a uniformity ratio or activities that happen in space is more sensitive than whole illumination. In addition, we can use the Multiplicity Method of KS and Four Point Method of IES when we measure whole illuminance like mean illuminance. Such method of measurements should be used exactly according to the kinds of space and activities.