Laser safety is important, and as a professional laserist you should be careful when projecting laser beams into an audience. This is why the Safety Scan Lens was developed by Pangolin Laser Systems. Safety Scan Lenses is a patented technology that is designed to help make your laser light shows safer, while at the same time allowing your shows maintain a high level of visual impact.
The Safety Scan Lens is a half lens, which will increase the divergence of the laser beam as it is projected downward, into audience areas. Due to the fact that it is a half lens, laser beams are not affected when they are projected overhead.
Thus, the end result is that you are able to create a stunning laser light show, and keep the beams which project on the audience at an enjoyable and safe level.
US Patent numbers 8,506,087 and 8,681,828
Choose your desired safety scan lens diopter, below.