IPT test lighting for World Cup and Olympics
Researchers at the Laboratory of the Electrical and Optical Technology Research Institute (IPT) have created a special facility to test a projector lighting for stadiums that can be used in the 2014 World Cup and 2016 Olympics.
The main equipment used in the tests is goniofotômetro, a computerized system that performs the measurement of parameters such as direction and intensity of light emitted by the projector in its normal position of use.
The collected data are compiled to form the so-called "photometric curves," which will be supplied to the designers and specifiers. Based on this information, they define the number of projectors and installation position to allow better visualization and registration of sport activities.
The projector in question is a model designed for large areas, such as football stadiums, gymnasiums and even airports platforms. Employing halogen quartz iodide lamps (HQI) metal vapor 2000 watts of power.
According to Oswaldo Sanchez Jr., a researcher responsible for the design, this model provides high intensity lamp consumes relatively small compared to the result. "It employs a spectrum of light very close to the sun light in a range of almost all colors. This is an advantage over the sodium vapor lamps, which have a spectrum more toward the yellow, "he said.
Another plus point of the lamp according to the researcher, is the possibility of installation on the type paraboloid reflectors, which direct all the light energy produced for a well-defined area. So it is possible to obtain high quality lighting at lower cost. It is estimated that in a stadium with capacity for 40 000 400 people are needed projectors, each in the range of $ 1,500.
Source: Survey
