The international standard of lighting products is developed with the development of light sources. The new optical characteristics of LEDs differ greatly from the current light source standards of CIE and IEC. Since LEDs have spatially distinct luminescence characteristics that are different from traditional illumination sources, the original methods for measuring traditional optical characteristics may not be suitable for LEDs such as luminous flux, light intensity, and chromaticity measurement. Otherwise, the measurement accuracy and accuracy of LEDs will be faced. Great difficulty.
1. LED lighting is paying more and more attention to the development of performance and test method standards. With the development of high-power white LED technology, the power required for functional lighting is in the kilowatt level, and the performance indicators of ordinary lighting fixtures in optical and mechanical structures. There are obvious differences, so the requirements for the consistency of photoelectric characteristics, chromaticity characteristics, safety, and product reliability of high-power LEDs are also stricter. However, the photoelectric and thermal characteristics of LEDs are very different from those of traditional light sources, so that the existing measurement methods for LEDs cannot fully apply the measurement methods of traditional illumination sources. Therefore, the establishment of various performance indicators and thermal index standards is particularly important. The United States has also introduced a number of LED lighting luminosity, electrical and color test specifications, and launched the Energy Star program for solid-state lighting in the field of energy efficiency. Japan also took the lead in releasing the test method for white LEDs. China has also carried out research work on LED accelerated life test methods, LED modules and component test methods.
2. LED lighting is paying more and more attention to the formulation of energy efficiency and performance standards. Since global lighting power accounts for 20% of total electricity consumption in the year, up to 90 of them are converted into heat energy consumption. Under the consideration of energy conservation and environmental protection, LED lighting has quickly become a technology and industry that has received much attention. At the same time, countries have also actively formulated environmental regulations, and the EU, the United States, China, and Australia have successively formulated plans for the elimination of incandescent lamps. Therefore, the energy efficiency of LED lighting has become a key issue to be considered in the standard setting process. For LED lighting products that have not been developed for a long time, especially in the international and domestic traditional lighting standardization, there is no concern, no required performance standards and energy efficiency standards. There is a huge difference between LED lighting and traditional lighting. Various technical performance indicators of LED lamps and The parameters have not been validated, making the development of performance standards and energy efficiency standards a new and complex subject. At present, many countries, including the European Union and Mexico, have established mandatory energy efficiency requirements for LED lighting products. The US Energy Star Program has detailed requirements for various types of LED lighting fixtures, and gives specific luminous flux and Test method such as chromaticity. The China Quality Certification Center has also developed energy-saving certification plans for LED road/tunnel lighting products, LED downlights, and reflective self-ballasted LED lights.
3. Beginning to pay attention to the development of LED luminaire standards LED luminaires are meant to include LED-based illuminating elements and matching drivers and light distribution components, components that secure and protect illuminating aids, and complete luminaires that connect appliances to branch circuit components. The traditional light source is generally a single illuminant, and the LED illuminator uses the LED light to be composed of a plurality of illuminants and emits light. There is a color difference between the illuminants of the LED illuminator, so it is necessary to use the uniformity of the color space to evaluate the LED illuminator. The spatial distribution of colors. The measurement and evaluation of the lifetime performance of conventional light sources has been standardized and interchangeable. The life of a traditional luminaire can be met by replacing the light source. The LED light source and the luminaire are integrated, and the life of the LED lamp is related to many factors such as the LED light source itself, the driver and the environment. Therefore, IEC has begun to work on the development of LED lighting standards.
The BMC injection molding machine is a kind of equipment used in thermosetting materials. It has the characteristics of no manual weighing, automatic feeding, and fast molding time. Mainly used in the injection molding process of thermosetting material BMC. Because of its precise hydraulic control system and computer operating platform, it replaces the original backward technology. So that the product can be shaped better and faster.
BMC / Bakelite Machine,Bakelite Molding Machine, Bakelite Injection Moulding Machine,bakelite moulding machine
Changzhou Yuehai Zanyang Machinery Sales Co., Ltd. , https://www.zanyangmachine.com