how exactly does it project the laser
2006-12-03 05:53:49 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Lasers are produced by exciting the electrons in the atoms of a material, usually a gas. When an electron come downs from the excited state, it releases the energy in the form of a photon (light). The frequency (color) of this light consists of a specific spectrum and depends on the material being used. For example, a Neon laser produces monochromatic 630nm (red) light.
2006-12-03 06:16:02 · answer #1 · answered by Robert A 2 · 0⤊ 0⤋
A laser pointer uses a small solid-state diode laser originally developed for use in fiber optics telecommunication. A laser works by multiplying the number of photons having particular wavelength, phase, and direction using principles of atomic physics. So, the light coming out is naturally monochromatic and collimated without the need for lenses or mirrors.
2006-12-03 06:15:38 · answer #2 · answered by Dr. R 7 · 0⤊ 0⤋
The light shines through so that you can use it to point at things in a distance. It's not harmful or anything. It simply projects the light so that you can use it to point. The light comes out a narrow tube so that it is a thin line.
2006-12-03 06:03:39 · answer #3 · answered by ambr95012 4 · 0⤊ 0⤋