LIGHT DISTRIBUTION IN WIDE-ANGLE LENSES
The article considers a two methods for determining light distribution in wide-angle lenses: the direct calculation method a lot of rays and the analytical method. Formulas for calculating the light distribution in lenses with different image construction laws are given. The results of computer simulation of light distribution in lenses with fields of view equal to 150 and 190 °are presented. The efficiency of the use of nondeterministic ray tracing for the analysis of light distribution in lenses with fields of view close to the hemisphere is shown.