What is a Laser Projector?
Laser projector is a device able to project almost any kind of graphic information. It consists of two main parts – laser (source of light) and scanners. The main difference between common projector and laser projector is that the laser projector uses laser as a source of light. The word “laser” is an acronym from Light Amplification with Stimulated Emission of Radiation. It is an optical source that emits photons in a coherent beam. Laser light typically consists of one wavelength, but there also are lasers which produce more wavelengths. For more information about lasers, please see http://en.wikipedia.org/wiki/Laser. Laser with scanners Then the laser beam continues to two galvos with two mirrors called scanners. They are able to reflect beam so fast in any direction, that humans are not able to see one beam flying through the space anymore. Because they only can see the whole graf ic information. There are different types of laser projectors. We use solid-state monochromatic or pol
The theater laser projector was built around a Spectra-Physics model 164 ion laser back in the early 1970s. Designers realized that special output mirrors could be used to allow lasing to occur simultaneously at red, yellow, green, and blue wavelengths. The raw beam, a beam that appeared white to the eye, was shot with a high refractive-index prism, which achieved a separation of about two degrees between blue and red. It was with this technology that the laser projector was created. The original laser projection system was put into an enclosed relay rack cabinet of approximately 2 1/2 feet (about 0.76 meters) square by 6 feet (about 1.83 meters) tall. Needless to say, the first laser projector was huge as compared to today’s laser projector. A ½ inch (1.27 centimeters) thick aluminum plate sectioned off the cabinet of the original laser projector. The laser head, which was 4 feet (about 1.22 meters) long, was mounted vertically on one side of the plate. The laser head pointed downward
