Keywords: projection light source
Along with the rapid development of the projector industry, the problem of the light source is indispensable in the projection with hot topic of discussion, viewing from the consumers feel the manufacturer's costs, the speed of light source development is directly related to the current real forward projection technology. In the face of the market now, opinions vary vendors for the choice of light source is very important, upgrading of projection light source also in silently. Today we talk about two hot light source, leds and lasers.
In recent years, LED the attention in the fluctuation period, is one of the LED the best time of nearly five years. And laser technology, starting from the date of birth has been a hot focus, and the future will only become more and more fire. Laser can replace the LED, is an inevitable trend, but are completely replace the LED some problems that need to be resolved in the short term. Among them, the more controversial problem basically focused on color gamut and brightness.
Laser can transcend the LED, because a wider color gamut, actually not completely. From the color gamut, pure white leds is less than the standard color gamut range, and three color leds is only slightly higher than the standard scope; And the color gamut range greater than the standard color of laser field. Because of limited by technology, mathematical model of the color gamut is a kind of ideal, in reality often can not meet the requirements. Because at this stage, the human can control the laser only a few wavelengths, fail to cover all, so its color gamut is incomplete. Similarly, LED and so on.
Brightness is still the focus of the choice
In terms of new light source, laser than LED advantage that is real is brightness. The brightest LED projectors can only achieve 1000 lumens, and the brightness of the laser is higher than it. From the point of the performance of projection products on the market, pure LED projection, or have a certain advantage in color gamut, but must be lose in laser projector in brightness. With the release of the global first laser projector, brightness can reach 2000 lumens, and still has room to rise; But at this stage the brightest projectors, can achieve the tens of thousands of lumens.
There is no denying that all of the light emitting device heating, and the effects of fever is impairments using life. At present, most of the laser light source is working in normal mode can achieve the service life of 10000 hours, in energy conservation mode can achieve the service life of 20000 hours. According to the existing data, the laser light source in 5000 hours after attenuation, began to have apparent brightness and brightness to 14000 hours after 40% attenuation, but there are still nearly 60% of the brightness can be normal use. This compared with the traditional light source 2000 lumens of light bulbs, energy-saving mode the limit of 6000 hours of life, the advantages of laser technology on the service life of the highlight.
Laser technology as projection light source, is the development trend of the future, but the fact is that in the short term can't completely replace the LED. But we still firmly believe that with the development of technology, laser light source in the projection would be popular, then will trigger a display technology revolution, to subvert the traditional display field.
