Moving head light, electronic, mechanical, optical high-tech products, commonly used in stage, squares and other occasions, King film by a different shape, different color changes, a different perspective, horizontal, vertical light angle changes and the speed ofstrobe speed, changes in aperture size, focal length change and overall performance.
moving head light is usually used in the stage, squares, professional moving head light is electronic, mechanical, optical high-tech products. Qualified professional and shook his head computer light, must be stable and reliable, light efficiency is excellent, accurate positioning, good heat dissipation, light body and the material structure in line with ergonomic requirements. The professional shook his head computer light 250W, 575W, 1200W, and other varieties can be divided from the use of power. 1200W for the professional performance of the main lamp type of place. The article focuses on the analysis of the fundamentals of the structure that 1200W moving head light. In a nutshell, shaking his head scanner is composed by three major systems of the optical, mechanical, electrical and process control. The three systems are interrelated, organic combination, to meet the needs of light, color, speed, direction, effects, heat, noise, and positioning elements.
The worldwide professional shook his head before the electrical characteristics and circuit design of the computer light 1200W moving head light the vast majority of rare gas discharge lamp light source. The start of the discharge lamp and stability depend on the choice of circuit type of design, power supply, ballast and other electrical components. Rare gas discharge lamp is started, does not require a stable, in order to ensure the stabilization of the entire AC cycle, the difference between the instantaneous voltage of the circuit to maintain voltage and the lamp should be sufficiently large. The start of the light source, stability, off, restart, and should be designed according to the characteristics of the light source circuit. The rare gas discharge lamp starting voltage is very high, requiring the use of transformers, start the device, semi-resonant circuit, etc., to improve an instant turn-on voltage. Light after starting the stability depends on the ballast and circuit parameters match. The ballast's basic function is to prevent current runaway and make light work in its normal electrical characteristics. Manufacturers usually use two ballasts, one inductor rectifier, an electronic rectifier. Inductor rectifier has the advantage of good stability drawback is that the intensity of the lamp body, handling, loading and unloading have a high requirements; electronic rectifier is essentially a power conversion circuit, the input supply current frequency, waveform and amplitude changed. The advantage is light weight, convenient loading and unloading; drawback is that the structural design requirements and high maintenance costs. Re-start of the light source, in the conventional circuit design, due to the high temperature gas-discharge bulbs work, saturated gas bubbles to form a vapor pressure resistance, and light to immediately trigger is difficult to achieve, light gas pressure down to the cold numerical can trigger a restart.