Talking about a new projector light source, we must first
think of LED, then and only then can the laser light source. However,
the most recent technology, is the laser light source LED mixed light sources,
and I was very surprised that there is a difference. In fact, it is now the
latest laser LED mixed light source is the first generation 2 technology in
2010, and the first-generation hybrid light source technology makes a big
difference.
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| Laser Projector light souce |
For the area, the projector lamp usage,
consumption, and later became the largest problems in the fields of
engineering, and ultra-high brightness of the projector works as a Warcraft
general, because of the light bulb brightness and life, each Warcraft projector
bulb is "eat" the demons. Research and development of new light
sources of the initial purpose is very simple, and that is in fact in order to
obtain a long-life light source, overcome lived in traditional light sources.
LED as a solid-state light source, the new hope, new direction in the new light
source markets. The benefits are many LED gamut, wide, long life and low heat,
low power consumption. But the fatal flaw LED similarly, countless people in
the industry have been disappointed, brightness is too low. At this stage the
most bright LED light source, the brightness of 1000 lumens.
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| LED Light theory |
Putting aside the issue price, and this 1000
lumens of brightness can be achieved only about 2000 low-end model of the
brightness level, and the brightness is too low, the color and the effect is
very difficult to function properly, which means that it is difficult to meet
user needs. The pre-increase LED brightness, is rather difficult, facing
challenges: A 3, changing material, the cost is too high, and technology is not
mature; B template changes, architecture, and increase the number, size and
cooling is not easy to control; C to change package forms at this stage, there
will be no break. These are the 3 development LED mountains, and there are many
details of the problems have emerged in LED, the further development of the
non-completion.
Not to force the LED under conditions of
scientific research institutions, and many complaints have been transferred to
a more promising, technical charm more powerful laser light source. This
development is also difficult: the control problem has been solved, directional
challenges overcome, and the energy density of the problem has been resolved,
but there are still so many follow-up questions. Laser as a light source using
non-all the characteristics, advantages, but is used as the light source, all
the characteristics are weaknesses or shortcomings. Finally, in low-cost,
highly pure form of color overcome the characteristics, has been unable to
overcome.
When we was proud of his time, and some experts
predict that the hybrid light source. Combined with two large light source, the
technical characteristics of a light source, use the superior colors LED
characteristics, combined with the brightness of the laser, laser light source
LED Meryl Streep. Mixed light sources, in the strict sense is not new
technology, but on a range of new applications, as history's great innovation
was in fact from breaking.
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| The first LED and Laser Light theory |
Talk about a hybrid light source, the Laser is
more concerned about, with the endless curiosity and yearning. Laser is also
used for laser, is a transliteration of the English language; results for the
term by Light Amplification Stimulated Emission Radiation of, to a certain
extent, the laser, has been translated more closer to intent and
transliterations. The laser characteristics, can be summarized for targeted,
high-energy and high stability, which enables all interested is the energy
density of high-light feature.
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| The secon LED & Laser Projector lamp light source |
In the novels, and movies of the laser
technology, the projector field, use of the laser technology is to be controls
to the light source. There are two laser, a modern laser technology is
primarily in the former Soviet Union scientists Nikolai Brasov in 1960 invented
the semiconductor lasers, can be characterized by energy, laser pens, CD-ROM
drive, CD player, the laser, laser light source device such as this are
derivative.
Hybrid technology, it's like synthetic
material, it is important that the mixture is light.
The first generation laser LED mixed light
source of the word is relatively straightforward and maximum laser high-light,
so that their bodies to group 1 + 1 blue laser group red LED blue laser, which
derived from the color wheel. The first generation hybrid light source
technical characteristics: 1 , relatively simple, you can make thin, ultra
light model. 2, the blue laser applications, significantly reducing costs. 3,
equal brightness relative to the product of the traditional light sources, more
than 40% power savings. 4, the green is not natural. The blue laser energy is
too strong, and the limitations of the color wheel, color was not ideal, and
the Green is also mixed with the large number of Blu-ray.
The first 2 generations mixed LED laser light
technology, compared with other lighting techniques better. Collection of more
than one light source, as much as possible the technology Advantages
Disadvantages has weakened
First, let LED mixed light sources, the
advantage of color light and laser light source combined with the advantages of
high-light. And that we are all familiar with LED light source, laser
technology has dramatically increased the projector brightness, but the color
cannot be avoided. The color saturation LED higher brightness, but too low, and
the laser light source brightness, color is not satisfactory. Since the media
publicity, LED light source with the power-efficient, high-efficiency, high
color saturation is the substantial positive publicity, and disadvantage is
completely submerged. The brightness LED lift, it is virtually not done; the
task depends on the color laser printing, and laser wavelength depends on the
active substances, the light, it is not easy to change colors and the facade is
color stable, negative is that we have here is a emphasis on the color problem.
The first 2, at the same time balancing the
energy of the light source LED laser light source and the high energy
consumption. The light source and LED low power, low-intensity laser, high
brightness and brings with it a high-energy-consuming. At this stage, traditional
light sources in the projector to achieve the peak brightness 40,000 lumens,
the laser light source engineering projection of peak brightness to 50,000
lumens, and LED peak brightness light source of products for only 1000 lumens.
The first 3, the hybrid light source technology
upgrades. Laser LED mixed light technology, there are a total of 2 generations.
Took 1 red LED + blue laser, color wheel will be blue-laser is divided into
blue and green. Took 2 red + blue LED LED + blue laser, color wheel will be
blue-laser turns green.
Article by Zol in Chinese.
