subject: High power laser pointers- a must-have gadget for mountaineers, campers and cavers [print this page] High power laser pointers- a must-have gadget for mountaineers, campers and cavers
Giving a specific example about the importance of the waterproof laser pointer will certainly give a much better idea of how more useful and helpful a waterproof laser pointer can be. Imagine a group of mountaineers who got lost in the mountains- it is rainy, the humidity is nearly 90% and the temperatures are very low. If the group has got a non-water resistant laser, it will probably not be working or even if it is working, they will have to look for a dry place where they will be able to use it otherwise it will break down because of the rain. It definitely does not sound like a reliable way to get out of such a dangerous situation!
Anyway, the water resistance is not the only important specification when it comes to laser pointers. The power of the laser also needs to be paid attention to because it is the laser's power that determines what the range of the laser's beam will be. A 5mW laser pointer would have range like 100 meters which would make it perfect for lecturers and teachers but totally unreliable to mountaineers, campers or cavers who got lost and there is no inhibited place nearby. Obviously, the range of the laser beam will need to be much higher- at least 10 kilometers so that there are good chances of somebody getting the SOS message'.
And like it was said, the range of the laser beam depends on nothing else but the power of the laser. A mountaineer, camper or caver equipped with high power laser pointers will certainly have very good chances of being found out- the more powerful the laser is the better his or her chances will be. It is recommended that people who need the violet laser pointers for that purpose (or laser pointers with any other colors of the beam) use at least 250mW lasers. Of course it needs to be mentioned that the more powerful a laser is the more dangerous it is to the human health and eyesight therefore its user will need to be much more careful and never ever direct it at another person.
The high power laser pointers should not actually be labeled as dangerous' because they can be 100% safe if the user knows what to do with them. And it can be guaranteed that as long as the user of the powerful lasers follows the instructions given by the manufacturer, there is no way that they can do harm to a person or any other living creature.
