Laser Light Projector Intrduction

Laser light projector system works by scanning the whole picture, or a little time and adjust the laser direct in high frequency, such as electron beam in the cathode ray tubes (CRTS), or by light transmission and attune laser scanning, line by line, in the same way as the DLP. This technology has wide in implementing the gamut of display devices provide practical today, because the true color of laser primaries.

Laser modulation signal
Horizontal and vertical refresh
Application


Laser modulation signal
This video signal is introduced to the laser beam through a light modulation (aom), use the photorefractive crystals.it respectively in different light diffraction Angle. Beam must enter in particular Angle, crystal Prague. Acute otitis media video signal of piezoelectric element is a convert vibration crystal to create a diffraction grating.
The first order diffraction is used and other light signals.

Horizontal and vertical refresh
It reflects a curved mirror mirror galvanometer - provides for vertical refresh. Another method is to adjust the light beam and spread all time, like in a DLP, lower peak power lasers and maintain constant need power consumption.

Application
There are several examples of a laser projection is based on the principle of a flying disk image of written on the screen. This type of laser projection includes three main parts: a light source adopts video signal is composed of three sharp provide light spectrum colors (red, green, and blue), a flexible, optical waveguide and transported to a relatively small projection. That projection clock, head beam according to screen pixel distance of arbitrary.

Due to the special features, such as laser projection high depth, it is possible to project the image or data of any surface, even as flat projection. The typical momentum, color space, contrast than other projection techniques -- for example, clutch contrast laser projection is usually 50,000:1 and higher, while modern DLP and LCD projector from 10:1 to 40,000:1. Compared with the traditional projector, laser projection provides a low flux output, but due to the high contrast brightness seems more big.