The term laser is an acronym for Light Amplification by Stimulated Emission of Radiation. The first working laser was demonstrated on 16th of May 1960 by Theodore Maiman at Hughes Research Laboratories. Since then, lasers have become a multi-billion dollar industry. By far the largest single application of lasers is in optical storage devices such as compact disc and DVD player, in which a semiconductor laser less than a millimeter wide scans the surface of the disc. The second-largest application is fiber-optic communication. Other common applications of lasers are bar code readers, laser printers and laser pointers.
As we also know the colourful world is on display by our eyes through the three additive primary colors Red, Green and Blue. Three colors are added together in various ways to reproduce a broad array of colors.
Lasers are an extremely bright, reliable, efficient, small, and cost effective source of light. Compared to conventional lamp, projectors laser projection reveal competitive advantage of excellent color saturation, practically unrestricted depth of focus, high contrast ratio and high resolution. This is a significant improvement compared to conventional cathode emitter TV tubes. The laser radiation is characterized by its narrow spectral linewidth and its precise wavelength given by the atomic laser transition founded theoretically by Albert Einstein.
As so many laser features said above, low cost, high brightness, high output power, small size and long life Red-Green-Blue laser system will let the dream of more colourful television for home cinema come true.
The following diagram shows the simple Red-Green-Blue laser projection configuration which M1 is reflector and DMD is digital micromirror device, is an optical semiconductor that is the core of Digital Light Processing (DLP) projection technology.
Projection Home Theater
*Laser Target Markets in Projection - Novalux, Inc.
Lasers are the only viable, long-term HDTV light source. Lasers & microdisplays together are the ultimate source for a truly immersive and affordable HDTV experience. Expanded color gamut will reinforce this reality -Start branding Laser TV now!
The objective of our project is to design and fabricate an engineering prototype laser based on a universal module design platform applicable forRed-Green-Blue colors and power levels as needed for projection display applications. The following video displays the first step result of our project. 1.2 W Blue laser is generated by our new laser cavity design.
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