For our project, we need to define the LASER type we can use. So, I did researches about the different classes. There are 5 classes of LASER, and we can use only 3 of them without a specific licence. However, we need to have enough energy to properly see the projection. So, we will use a 3R LASER class, which can not be looking during more than 0.25 s. We need to program in hard a control module in order to avoid a potential risk.
Now, we have to precisely define the LASER’s colour, its power, its voltage, its diameter, and its control speed required for our project