The Practical Uses Of Laser Pointers

Electronics

Laser pointers are interesting tools that are very useful in various ways. These days, laser pointers for sale vary in shape and cost because of its various uses in various fields. They started out as simple tools to point something out to an audience but advances in technology together with ideas from creative people have made laser pointers a fun novelty electronic item to have.

As a lecturer's tool

Laser pointers' main purpose when they were made available to the public were as a device that will may help lecturers in schools and seminars point out important parts of a projected presentations. They became even more popular as more lecturers in seminars and universities favored projected digital presentations. In fact, multimedia projectors sold today come with their own laser pointers as a complementary product. The type of laser pointers used for this purpose uses a 630 nm wavelength red laser diode which is the most common type.

For pointing at heavenly bodies

Another use of laser pointers is for astronomy enthusiasts that want to point at the stars at night. This special type of laser appear green to the eye because they are 532 nm wavelength. Unlike red lasers the green lasers can be seen in the dark in mid air as well as when they are in a solid surface. Another quality that these types of lasers have is that they can be seen from as far as 2km away from its source. All its special features make green laser pointers for sale are more expensive; each costing up to $100.

Laser sight for firearms

We are all familiar that lasers are used as sights for pistols and rifles. Movies and TV shows have made the public familiar with these types of laser pointers. The laser give the shooter an idea of where the bullet will most probably hit if he will shoot. This will give gun wielding professionals using laser pointers an advantage especially in emergencies that require them to act fast. Aside from pointing the direction of the bullet, lasers also give a blinding effect to the target making shooting back more difficult.

In messy crime scenes where there may be multiple shooters were involved or where many bullets were fired, lasers are used to know the trajectory of each bullet which can be useful in determining the shooter and his location. This gives the investigator an idea of who was shooting and where each bullet went. For more information on laser pointers please tap here.

For fooling around

Laser pointers are banned from many sporting events such as football and baseball games as they can be used to blind the players during crucial moments of the games. They are also banned from cinemas to avoid interfering with the projected film.