Selection of laser light, you should note the following:
1. Pay attention to power and spot diameter size
Laser light beam to the human eye has a fatal injury, the greater the power, the more dangerous. If green laser beam with spot diameter of less than 2mm and stationary power greater than 100mW directly irradiated human skin, within a few seconds, then you will have a burning feeling. When green laser beam with the same spot and power more than 300mW shines directly on the clothes, within one minute, the clothes may be burn. So keep in mind that do not look at stationary laser beam directly! When performing a laser show, laser beam is spread by high-speed galvanometer scanning. Although the laser power is relatively large, but after opening sweep of the laser power density per unit area has been very low. It usually does not cause irreversible eye damage. However, if the normal scanning process suddenly stops moving caused by the scanning galvanometer circuit or malfunction, an incident maybe happen. Light, your vision decreased; severe, immediate blindness! Laser show is splendid but dangerous. To solve this problem later, Europe and other developed countries have now developed a set of “laser scanning runaway protection” technology. Laser light is equipped with this technology. When an unexpected stop happening in scanning the laser beam, the laser will automatically be shut down immediately. Therefore, in order to protect you and your customer’s eyes, when buying a laser presentation products, you must pay attention to whether those products with “laser scanning failsafe” function and then verify this feature.
2. Pay attention to the actual effectiveness of voice
Now, many laser lights have a “voice” function, which is actually a very simple laser trigger playback volume. Its effect is very simple and monotonous. “Laser sync music synthesizer player” is to play after an synchronization of the laser effects data and the relevant music data. So in the context of music with laser speed orderly synchronized with the rhythm of the music playing, the effect is so amazing that “Voice” results can not be compared.
3.Pay attention to the text animation artistic effect
Many of the current market known as text animation laser lights are not “broken pen” effects and their text animation art are poor. The so-called “broken pen” is that when putting in writing, a word between strokes or two words should be no connection between the two text lasers. Typically, low-grade laser lights have no “broken pen” effects, but have large text or animated distortion.
4. Pay attention to the “multiple laser pattern stunt.”
If the laser light or performing system has “multiple patterns stunt” feature, its effect can be more abundant. Such a single head laser lights can be put in the equivalent of two ordinary single head laser light combination effect.
5. Pay attention to the performance of “galvanometer”
Galvanometer is the key components directly affecting the quality of patterns. Usually a good galvanometer fidelity, in the same situation ,can put more text; or in the number of the same text, high-quality text galvanometer can put in more high-quality laser effects pattern with a small distortion of text.
6.Pay attention to “DMX512”
Many “DMX512 control” laser lights in the market basically have no programming function and have simply call patterns. Its effect is usually rather monotonous. However,the “multi-functional intelligent programming DMX512,” provides a powerful programming and pattern effects editing tools. With such features, laser light scenes can directly edited laser effects and procedures through DMX512 console. At the same time, you can combine the effect of laser show with the traditional stage scene lighting effects. In short, when you use this laser light by putting it with DMX512 control computer lights , laser effects can achieve the perfect level.
Laser classification and design
Classification of laser light Currently, there are two groups of available laser light in the market from the scanning device classification. One is a simple beam scanning laser lights, which use low stepper motor scanning. The effect is only a few simple repetitive beam effects. Another is the galvanometer scanning laser lights, by which you can put text and animation on it. Galvanometer scanning laser light can be divided into low-speed 10Kpps text animation laser lights and ILDA standard> 30Kpps high-speed block text animation laser lights. Low-speed galvanometer scanning laser lights usually can not put text or a complex of high-quality animation, nor the “multiple patterns stunt” effect. Mao Cheng used> 30Kpps speed galvanometer development of high-grade text animation laser light, which not only can put high-quality text and animation, but can also put “multiple patterns stunt” effect.
A few basic principles of stage lighting design
First: stage lighting design must be designed for the full stage lighting to create free space and adapt to a light cloth.
Second: To make this stage lighting design system run for a long time, one needs to increase reserves and expand space.
Third: the anti-interference ability and stage lighting design security system needs to be designed as an important technical indicator of this projector.
Fourth: one needs to make use of energy-efficient lighting in the cold light of new lighting designs.
Fifth: DMX512 digital signal network technology should be introduced into all aspects of system design