Kaitan antara Sudut Pencahayaan dan Intensitas Cahaya Belakang Aperture

Abstract

The experiment on the correlation of exposure angles and light intensities behind the aperture has been performed in the rooms with different colors (i.e.: white, pink, and black). In the experiment the diameter of opening aperture were 2 mm, 4 mm, 6 mm, and 8 mm, respectively. From the experiment, it was determined the values of proportional constants k and the deterministic coefficients R for each rooms. The obtained coefficients exceed 50%. It means that the correlation of quadratical diametric of opened aperture and light intensities is strong enough. The implications are: the bigger the diameters of opening aperture, the higher the the light intensities behind the aperture. On the other hand, the smaller the diameter of opening aperture is, the lower the light intensites behind the aperture. The other experiment to determine the values of k was by using the graph connecting the exposure angles with the light intensities. The graph provided the k values which were equal to the curve's amplitudes. From both experiments, it could be concluded that the light intensities behind an aperture will be affected by both the exposure angles and the diameters of opening aperture.