The semiconductor lighting industry is facing a rare historical opportunity. The output of LED packaging and application products in China has accounted for 70% of the world's total. The development of the LED industry is taking advantage of the development of the LED industry. It is actively developing in the direction of advantages, promoting technological progress and maturity of production processes, thus promoting China's semiconductor industry. The overall advancement of lighting technology has also played a crucial role in the arrival of the era of semiconductor lighting.
On August 30th, the 8th High-tech LED Industry Summit held in conjunction with the High-tech LED Boutique Exhibition was held in the Century Hall of the Shanghai International Convention Center. The technical section of the forum revolves around "LED Lighting Technology - Problems and Solutions", LED lighting design and application engineering - the theme of deciding the segmentation field, etc. The sapphire production process in the whole industry chain of LED, middle and lower reaches, LED epitaxial chip technology at home and abroad, phosphor, detection equipment, LED devices and modules, and OLED From the point of view to the topic, I shared a comprehensive key technology with the guests. Participants expressed that it was a very rare training and promotion opportunity.
Dr. Liu Xiao, General Manager of Intermec Optoelectronics (Shenzhen) Co., Ltd., introduced the application of phosphors in the quality LED light source package, pointing out that in addition to controlling brightness, phosphors have color, color rendering, uniformity of light, Consistency plays an important role. The recommended phosphor is GAL (non-YAG aluminate phosphor) plus nitride phosphor, which can meet various requirements, unless there are special requirements for color rendering index and brightness, using GAL phosphor green plus nitrogen. The red phosphor is a one-stop solution that can meet the needs of both lighting and backlight applications. Foreign manufacturers have already accepted this option and are currently doing some conversions. Warm white LEDs can achieve over 90, or even 95 or more, with GAL plus nitride color rendering. High-power TV backlights require NTSC (color saturation). If you have a higher NTSC, you can choose GAL plus nitride, medium NTSC can choose YAG plus nitride, and low NTSC can use yellow YAG phosphor or silicate directly. Phosphor.
A liquid vortex meter is a type of volumetric flow meter that makes use of a natural phenomenon that occurs when a liquid flows around a bluff object. Vortex flow meters operate under the principle of vortex shedding, where vortices (or eddies) are shed alternately downstream of the object. The frequency of vortex shedding is directly proportional to the velocity of the liquid flowing through the meter.
Vortex flow meters are best suited for flow measurements where the introduction of moving parts presents problems.
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