MINGDIAN SOUND LIGHT LIMITED

 Moving head light is a high-tech product integrating electronics, machinery and optics. The qualified moving head lamp must be stable and reliable, with excellent light effect, accurate positioning and good heat dissipation. The lamp body and material structure shall meet the requirements of human-machine engineering.

Moving lights can be divided into 75W, 100W, 230W, 350W and other varieties from the use power. 230W is the most common type, which can be used in many places. In this article, the construction principle of 230W prism beam head lamp would be analyzed.

The inner structure and working principle of the moving head.

I. optical system

The optical system design mainly considers the luminous flux utilization of the light source. Specific performance indicators include light intensity, uniformity, saturation, spot size. There are two factors that affect the above indicators, one is the light source, the other is the optical system structure and material selection.

The 230W prism light adopts osram230w lamp. Its characteristics are compactness, high brightness, high color temperature, good color rendering, and the lamp source can maintain a relatively stable color temperature in the process of dimming. In the optical structure, in order to obtain a uniform mixed beam, a calibrated processing or surface texture reflector can be used to collect divergent or narrow beams.

II. Mechanical system

The mechanical system has a wide range, including material, structure, mechanical properties, shell requirements, heat dissipation requirements and so on. The material of 230W head lamp mainly includes steel, plastic and aluminum alloy. On the premise of meeting the overall function of the lamp, the structural model of the lamp is designed, with different parts and materials. For example, brightenfocus 230W prism light, the body shell adopts plastic parts, and the lamp body support frame, base, side plate and end plate adopt aluminum alloy casting, stamping parts and vehicle parts.

The mechanical performance of the lamp body is mainly reflected in the mechanical strength of the lamp body parts, so that the lamp body will not be deformed, wear-resistant, corrosion-resistant, earthquake resistant and compression resistant during the continuous and effective working time; the shell of the lamp must have strict waterproof, dust-proof, anti-static and moisture-proof requirements. According to the degree of dust-proof and water-proof, the protection level requirements of different enclosures are divided: for example, the protection level of indoor lights is generally IP20, and that of outdoor lights is generally IP44.

The mechanical structure of 230W prism light and heat dissipation are very important. If the heat dissipation system is defective, it will cause electrical parameter drift, color chip and film rupture, plaque, crash, out of step, uncontrolled and other serious consequences.

III. electrical and program control

1. Electrical characteristics and circuit design of moving lights.

The starting, stability, extinction and restart of the light source shall be designed according to the characteristics of the light source. The starting voltage of noble gas discharge bubble is very high, which requires the use of transformer, starting device, semi resonant circuit and other ways to improve the instantaneous starting voltage. The stability of the light source after starting depends on the matching of ballast and circuit parameters. The basic function of ballast is to prevent the current out of control and make the light source work under its normal electrical characteristics.

2. Program control

At present, DMX data format is widely used to write program files for international computer lights.

Therefore, the display of the effect of the computer head lamp is to show the effect of the moving head lamp by combining different attribute values through the overall structure, hardware and software requirements, so as to achieve different perspectives of the scene, light angles, rotation speed of the head lamp and the size of the aperture. By programming to control the running parameters of the motor, the control the moving heads.