The stage lights in addition to professional grade computer lighting, new LED stage light, stage laser light and never goes out of style, has the magic of. Many lamp group create a dreamy effect, whether it is large square indoor or outdoor large studio, laser light can often create a fantastic dreamy atmosphere. In the purchase of laser light, should pay attention to the following points:
1, to buy time to see the laser power and the diameter size
The beam of laser light, the eyes of human fatal damage, power is more dangerous! The spot diameter is less than 2mm, a green laser beam static power of more than 100mW does not move, if go directly into the skin, then in a few seconds there is the feeling of burning. When the same spot, green laser beam shooting straight power of more than 300mW on the clothes, a minute, clothing could burn through. So, absolutely can not open the stationary laser beam!
Laser show, laser beam is high scanning spread, while the laser power is large, but the laser power density per unit area and the already very low, usually not on human eyes cause irreversible damage. However, if the circuit or scanning vibration mirror fault caused by laser beam in the normal scanning process suddenly stops, and the laser beam and right into your eyes, then see how your luck. Light, decreased obviously, your vision is severe, immediate blindness!
The laser performance good, but very dangerous! In order to solve this problem, now Europe and America and other developed countries have developed a "laser scanning out of control protection" technology, laser light is equipped with this technology, when the laser beam stop unexpectedly scanning, laser will automatically be closed. So, in order to protect you and your customer's eyes, you buy in the laser show products must pay attention to whether this product "laser scanning out of control protection" function, and to verify the function.
Classification of 2, see the laser light
Currently on the market of laser light, classification from the scanning device has two types. A class is a simple beam scanning laser light, this kind of laser light by the low speed stepping motor scanning, the effect is only some simple repetitive beam effect. Another is the galvanometer scanning laser light, usually this kind of laser light can be put on the text and animation. Galvanometer scanning laser light, and can be divided into low speed about 10Kpps character animation laser light and ILDA standard >30Kpps high speed high block of text animation laser light. Low speed galvanometer scanning laser light usually can not be put in complex high quality text or animation, nor a "multiple pattern stunt" effect. In the high-end character animation laser light Mao Cheng uses >30Kpps high-speed galvanometer developed, not only can put high quality text and animation, also can put on the "multiple pattern stunt" effect.
3, to see the actual effect of sound
Now a lot of laser light has a "voice" function, the "voice" is actually a very simple volume laser triggered playback effect, simple, monotone. "Laser synchronous music synthesis play" is the underlying rhythm data of laser effect data and music synchronization after synthesis play, so in conjunction with the background music playback, synchronized laser speed and orderly and the rhythm of the music, the effect is usually the "voice" effect to compare.
4, look at the text of the art of animation effects
Currently on the market a lot of so-called text animation laser light are not "broken pen" effect, a poor sense of character animation art. The so-called "broken pen" is when placing text, between, with a word of stroke or two word should be no laser line. Usually, the low-end laser lights are not "broken pen" effect, its put in words or animation distortion greatly.
5, to see whether they have "multiple laser pattern stunt"
Laser light or performing system if have "multiple pattern stunt" function, so it can release effect is more rich, simply say, such a single head laser light can be put on the combined effect is equivalent to two ordinary single head laser light.
6, see the "properties of the advantages and disadvantages of the vibrating mirror"
Vibrating mirror directly influence element pattern quality, usually a good mirror in the same fidelity condition, can put more of the text; or in the same number of words, which put out the smaller distortion of text. Vibrating mirror can put high quality text, also can put on the high quality, the pattern of laser effect more.
7, see the "DMX512" intelligent or not
Many claim that "the market laser lights DMX512 control" basically have no programming function, simply call the laser light pattern, this usually effect monotonous. "Multi function intelligent DMX512 programming", provides a powerful programming and patterns of editing means, with laser light of such functions can be directly through the DMX512 console to edit the laser Scene Effect and program, also can put the laser effect to the scene with the traditional stage lighting scene effect, organic combination together, you can such laser light and DMX512 control computer lamp combined use of the perfect combination, can realize laser effect and light effect.
8, look at the indicators of compliance with the ILDA international standard
If the laser lamp manufacturer is not a member of the ILDA, so its products do not usually designed according to the standard, or to increase the number of cost.
9, look at the dust seal measures
The laser light inside of some optical mirror, if no internal dustproof sealing measures, so the dust and smoke will soon put the lens contamination, such reflection efficiency will be reduced, they need a period of time after the use of laser light
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