differential equations of reflector or Direct Problem calculation of the light distribution (illuminance distribution on a working plane or luminous intensity distribution) of a system when the reflector shape and parameters of the light source are specified. As a particular case, SHAPE supports calculation for uniform light distribution.
Light source is presented as a point (for rotational and translational reflectors) or a line (for translational reflector) with given luminous intensity distribution.
Common features for direct and inverse problems:
- the design method is based on exact solution of differential equations for reflector including the concept of geometric optics
- the fact that illuminated space can be partly shaded by reflector is taken into account
- utilization factor of the light system is calculated