lux meter is used for comparing the impacts of various light conditions. It works by using a photo cell that converts the captured light falling on an object into electrical current. It allows the device to find out the lux value of the light after measuring the current. This device also helps in deployment of new cameras. Hence, lux meters are also known as light meters as well because they help in adjusting the brightness during picturizations and shooting the movies in the outside locations.
The human eye distinguishes the colours of light in different complementary models of visual physiology. This meter is said to give the measurement of light intensity that a human eye can easily distinguish.