There is a risk of breaking the tube, but most of the laser tubes that are sent to Iran Padra Company from distant places are done by bus and plane, which are placed inside the cabin.
If it is rechargeable and safe, yes, we will buy it.
The distance between the lens and the point where the laser beam has the smallest beam (focus point) is called the focal length.
The area where the laser beam is focused and converges to the smallest laser beam is called the focus point.
One of the most widely used lenses in laser devices is the 1.5 – 2 – 2.5 – 3.2 inch lens.