| The point light source lab model is an emulation of a set of vehicle passing beam headlamps at a distance of 250 m with luminous intensity of 1,750 cd, in accordance to the maximum allowance of luminous intensity of a vehicle passing-beam headlamp at point "BR" described in Regulation No. 112, 01 series of amendments. The test is performed considering a set of lamps with 0.09 m diameter and separated by 1.3 m. This results in a luminance of 275,000 cd/m2. For laboratory evaluation purposes the light sources shall be adjusted to have a luminance within the range of 250,000 to 300,000 cd/m2 by using a constant current source. | a0c0 |