With the improvement of living standards, people are increasingly demanding healthy lighting such as lighting quality and comfort. At this stage, the pursuit of lighting effects is developing from high-light effects to people-oriented. The higher the color rendering index, the more comfortable it is, so achieving full spectrum for better lighting and experience. “In the field of general lighting, it is particularly important to break the limitation of the color rendering index,” said Mr. Lin Jinlu, Chairman of Xuyu Optoelectronics.

The full spectrum of LED light sources has been developed internationally for many years. At present, the technology is limited to continuous spectrum in the visible light band, which improves the color rendering index, but it is difficult to achieve continuous spectrum in the ultraviolet and infrared portions. Ultraviolet and infrared LEDs have a very narrow spectrum and are limited to a specific band. It is difficult to combine into a continuous spectrum, and the cost is high.

At present, full-spectrum light sources are mainly used in high-end indoor lighting and plant lighting. Among them, the requirements for visible light in indoor high-end lighting are mainly reflected in the color rendering index. Usually, Ra (the average value of R1-R8) is above 95, and R9-R15 is above 90. Dr. Chen Lei of Xuyu Optoelectronics admitted that it is not difficult to achieve this requirement by using chip matching corresponding phosphor technology, but it is more difficult to further improve to Ra> 98 and R9-R15> 95. This is a relatively high requirement for chips and phosphors, and it is not easy to achieve breakthroughs.

In the field of plant lighting, the light environment is one of the key factors affecting plant growth and development. Studies have shown that the illumination required for plant growth is not only blue light with a wavelength of around 460 nm and red light with a wavelength of about 660 nm; moderate amounts of ultraviolet and far red light (730 nm) play a key role in the specific growth stages of certain plants. . Therefore, it is especially important to achieve full-spectrum illumination of plant growth, which not only helps to shorten the growth cycle of plants, but also enhances yield and taste. However, the plant growth lamps currently used for plant illumination are mainly concentrated in the visible part, and are lacking in the ultraviolet and far red light bands.

Dr. Chen Lei told Gaogong LED: "Some foreign companies like Osram usually use a multi-chip combination solution to solve this problem, but the cost of this solution is too high. The next step is to use chips to match specific phosphor technology. Realizing the full spectrum of plant growth, and the development of key technologies for phosphors (especially the 730nm far-red powder) has become the key.” Meanwhile, Dr. Chen Lei pointed out that the field of plant lighting is highly interdisciplinary, LED semiconductor technology, plant photobiology and light environment. Full collaboration and cross-disciplinary research in the field of intelligent regulation is essential.

It can be seen that the realization of the full spectrum is very significant in both high-end indoor lighting and plant lighting. In response to the market's strong demand for full-spectrum light sources, Xuyu Optoelectronics and Shenzhen Tsinghua University Research Institute have carried out research cooperation and made major breakthroughs. According to Mr. Lin Jinzhao, the company has achieved full coverage of white light, RGB, ultraviolet light and infrared light in the field of lighting.

Through cooperation with Shenzhen Tsinghua University Research Institute, Xuyu Optoelectronics has achieved a breakthrough in full-spectrum technology, and its products have successfully achieved Ra>97, R9-R15>90. "In the future, Xuyu Optoelectronics' goal is to achieve Ra> 98, R9-R15> 95." Mr. Lin Jinyu said so.

As we all know, to achieve this goal is not easy, one of the technical difficulties is the breakthrough of the R12 value. "The main reason is that the emission wavelength is located in the 495nm band. The phosphor and chip matching technology are not mature enough, and the R12 value is difficult to be improved. However, Xuyu Optoelectronics has achieved initial results in this regard. In the future, the use of ultraviolet chips to stimulate RGB phosphors Full-spectrum illumination will become mainstream, so developing RGB phosphor technology for UV excitation will be the key,” Dr. Chen Lei pointed out.

At this year's Guangzhou Guangya Exhibition, Xuyu Optoelectronics will focus on its wide-color, full-spectrum, high-efficiency products, with booth number 10.2-C29.

As a high-tech enterprise deeply rooted in the field of LED packaging, Xuyu Optoelectronics has always paid attention to the independent research and development and innovation of its products since its establishment, and has repeatedly undertaken the key scientific and technological plan of the Science and Technology Commission of Shenzhen Science and Technology. More than 50 utility model patents.

For eight years, Xuyu Optoelectronics has always only done one thing - to do a good job in the package. To this end, Xuyu Optoelectronics has always been adhering to the "artisan spirit" and expects to make products. In order to implement the "artisan spirit", Xuyu Optoelectronics has spent a lot of time in terms of the selection of raw materials and equipment. According to Mr. Lin Jinzhao, Xuyu Optoelectronics SMD products are all made of 99.99% pure gold wire and copper brackets. Over the years, they have continued to focus on high-reliability LED packaging, bringing better solutions for a series of applications.

This year's Guangya Exhibition, Xuyu Optoelectronics will bring many high-quality products to the stage. Among them, the sunlight-like LED series is a major breakthrough product in the full spectrum technology. It is understood that Xuyu Optoelectronics Sunlight LED series covers 3030, 2835, 4014 and other models. Taking 2835 as an example, this series covers the color temperature range of 2700K-6500K, and its luminous efficiency is up to 90-127lm/W. Its Ra> 97, CRI> 96, can be widely used in educational lighting, medical lighting, high-end home lighting, luxury goods. Such as high-end commercial lighting and many other fields.

In addition, Xuyu Optoelectronics has also achieved significant results through UVA products developed in cooperation with well-known Taiwanese manufacturers. Its UV ceramic series has a highly customized open plate and plate service, customizable size, mixable band 265-420nm, high thermal conductivity copper/aluminum nitride substrate, seamless splicing, can be designed according to power supply And many other features. Products can be widely used in printing, ink curing, glue curing, coating exposure, fluorescence detection, sterilization, skin treatment, nail tattoo and banknote detection and other special industries.

Of course, more technical achievements of Xuyu Optoelectronics will be fully displayed at the Guangya Exhibition, and all these technological achievements are derived from the strong innovation and technical strength of Xuyu Optoelectronics. As the lead drafting unit of Shenzhen LED industry standard, Xuyu Optoelectronics is actively promoting the integration of “production, study and research”. It is understood that Xuyu Optoelectronics is not only a public implementation base for vocational education in Shenzhen, but also a post-doctoral innovation base of Xuyu Optoelectronics Research Institute of Shenzhen Tsinghua University.

For a long time, Mr. Lin Jinzhan regards “contributing to the LED industry and social development” as its mission. Because of this sense of responsibility, Xuyu Optoelectronics has always adhered to the field of LED packaging for 8 years, with a sense of mission to do a meaningful thing.

Waveguide Directional Coupler

Zysen provided a range of Waveguide Directional Couplers, high directivity with wide operating frequency range. Can be three waveguide ports or with one coaxial connection. Contact us with your requirement.

Waveguide Coupler,Rf Directional Coupler,Coaxial Directional Coupler,Waveguide Directional Coupler

Chengdu Zysen Technology Co., Ltd. , https://www.zysenmw.com