Many materials have been found to have the required characteristics to form the laser gain medium needed to power a laser, and these have led to the invention of many types of lasers with different characteristics suitable for different applications. Laser action is explained by the theories of quantum mechanics and thermodynamics. This contrasts with common light sources, such as the incandescent light bulb, which emit incoherent photons in almost all directions, usually over a wide spectrum of wavelengths. Laser light is typically near-monochromatic, i.e., consisting of a single wavelength or color, and emitted in a narrow beam. light or other electromagnetic radiation. In analogy with optical lasers, a device which produces any particles or electromagnetic radiation in a coherent state is also called a 'laser', usually with indication of type of particle as prefix (for example, atom laser.) In most cases, 'laser' refers to a source of coherent photons, i.e. The back-formed verb lase means 'to produce laser light' or 'to apply laser light to'. The term has since entered the English language as a standard word, laser, losing the capitalization in the process. The only laser effects that are potentially hazardous, are those effects that come in contact with the audience.A LASER (acronym for Light Amplification by Stimulated Emission of Radiation) is an optical source that emits photons in a coherent beam. In summary, the vast majority of laser effects produced are completely safe, especially when the laser effects being displayed do not directly come into contact with those viewing the show. The main difference between a LED and a laser is that the laser has an optical cavity required for lasting.

Laser is also a semiconductor diode with a p and an n region like LED, but it provides stimulated emission rather than the simplex spontaneous emission of LEDs. The personnel needed to install, operate, and control the equipment also cross over into these different areas of 'stage lighting' applications. Stage lighting is the craft of lighting as it applies to the production of theater, dance, opera, and other performance arts. Laser headlights can put out more brightness for their size, the headlamp units themselves can be much smaller. Lase light is a pair of high-intensity laser beams out of the front of your car and the resulting light can be thrown up to 3000-meter distance, 4 times brighter than LEDs.

Laser party lights