When it comes to effective sterilization range, it is also based on the concept of dosage. Unfortunately, for a point-emitting light source, the intensity distribution of the illuminated surface of the plane is a mountain shape similar to the Gaussian distribution, and the intensity difference between the center and the edge can be several times. If the customer is asking this question rigorously, we should perform a more accurate optical simulation to calculate the intensity distribution everywhere on the plane. The simulation may not be accurate enough, but it provides a qualitative reference for our program design. The irradiated surface is not uniform, and the simulation tool can calculate it more clearly.
When defining the luminous angle of the lamp bead, an angle of half of the peak intensity is used. It is recommended that we also define the half of the peak intensity on the plane as the effective range when designing the plan, and the calculation of the dose is also calculated according to the half-height position.
Because the LED light type is a spherical surface, there is a big difference in the uniformity of intensity distribution between a close place and a far place. At 20cm, the effective irradiation range accounts for a larger proportion of the entire irradiated surface.
