If your mobile phone or PDA had a display as large as that of a laptop while still fitting easily in your pocket, wouldn't you feel ecstatic? This is what you would get with pocket projectors.
Pocket projector is an emerging technology that involves the use of a projector in a hand held device. It is, in fact, a direct response to the emergence of compact and portable devices like mobile phones, personal digital assistants (PDA), and digital cameras that have sufficient storage capacity to store presentation materials, but very little space to accommodate an attached display screen. Pocket projectors comprise miniature hardware and software, which can project digital images on to any nearby viewing surface, for instance a wall.
A number of major advances in imaging technology have resulted in the development of hand-held pocket projectors. The latest projection technology that is creating a lot of buzz in the market is the laser projection technology. Laser projection system does not require a lens to focus. This implies that it is capable of displaying clear, sharp images on almost any surface from various distances. Laser portable pocket projector offers an excellent colour gamut and low power consumption, because of the use of lasers as the light source. These projectors present an image that is always in focus.
Though DLP projection technology is also widely used in pocket projector, but the coming of laser projection has given a new face to pocket projectors. DLP pocket projectors have state-of-art functionalities and do not posses filters, have brilliant colour and higher contrast ratios coupled with better picture reliability. Laser pocket projectors offer a better mix of high resolution, speckle free, and eye-safe image. Unlike DLP pocket projection technology, laser projection always offer a focused image with the lowest power consumption.
A laser pocket projector modulates a laser beam for projecting a raster based image. The system works either by scanning the complete picture a dot at a time while modulating the laser directly at a high frequency or by optically spreading and modulating the laser while scanning a line at a time. When this laser pocket projection technology is well-implemented, it produces the broadest colour range available in any practical display equipment of today. This is because lasers have the ability to produce truly monochromatic primaries. The pocket projectors of today are outstanding in both quality and convenience.
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