Device for field measurement of photometric values of lamps and lighting plant, e.g. for assessment of the lighting of runways, whereby images of lamp light cones are recorded and compared with reference images

摘要

Method for field measurement of photometric values of lamps and lighting plant, whereby the light cone of a lamp is directed on to a projection surface. An image of the surface is recorded using a camera and a digital image transferred to a computer. The computer compares the image with reference images. The invention also relates to a corresponding device.