Health lighting is to improve and improve the conditions and quality of people's work, study, and life through lighting, and promote mental and physical health. In an interview with Aladdin News Center, Dr. Xie Zhiguo, deputy general manager of the white light device division of Foshan Guoxing Optoelectronics Co., Ltd. (hereinafter referred to as “Guoxing Optoelectronics”) said that in terms of downstream lighting applications, the field of education lighting The three major application areas of universities, office lighting areas such as office buildings, and home lighting areas such as home bedrooms and writing desks have greater demand for health lighting.
However, consumers did not really understand and accept health lighting, and LED lighting manufacturers' implementation of lighting applications such as home and education has been hindered to some extent. It can be seen that although health lighting has become a new blue ocean in the lighting industry, it is still in a forward and exploring stage.
Lack of uniform standards
At present, the main standards represented by the field of education lighting subdivisions are: the national mandatory standard GB 7793-2010 "Primary and Primary School Classroom Lighting and Lighting Sanitary Standards" (National Ministry of Health), GB 50034-2013 "Building Lighting Design Standards" (housing And Ministry of Urban and Rural Construction), national recommended standard GB / T 36876-2018 "sanitary requirements for lighting design and installation of ordinary classrooms in primary and middle schools" (National Health and Medical Commission), industry standard JGJ 39-2016 "Code for Design of Nursery and Kindergarten Buildings" Ministry of Urban and Rural Development).
It can be seen that the national health departments and urban and rural construction departments are still watching or marginalizing the use of LED light sources, and they have not been used as the main classroom lighting source. In response, Professor Kaijun He, principal of Xiamen LED Industry Promotion Center, said: "At present, there are a large number of lighting standards, low levels, multiple management, and crude manufacturing. The limitations of traditional lighting standards are obvious, and standards lag behind the development of technology and industry. Wang Yousheng, vice chairman and secretary-general professor of the Hong Kong and Macao Visual Health Innovation Consortium, said that although some local functional departments have formulated standards related to health lighting, they still need to keep pace with the times and develop unified standards.
The industry lacks a clear and absolute authority that can lead the healthy development of the industry. It will be difficult to constrain all manufacturers on the product's glare, color temperature, illuminance, uniformity of illuminance, blue light problems, flicker, color rendering index, and energy consumption. The problem is that the quality of health lighting products on the market is uneven, which is not good for the light environment around young people. After formulating a unified standard and optimizing the top-level design, it is more important to implement the main responsibility. Since August 2018, the Ministry of Education has played a leading role in implementing the "Implementation Plan for Comprehensive Prevention and Control of Myopia in Children and Adolescents", and has made solid progress in comprehensive prevention and control of myopia in children and adolescents. Over the past year, many important experimental progresses have been made, such as the establishment of national myopia The joint conference mechanism of prevention and control work has established an expert preaching group, signed a responsibility letter for myopia prevention and control work, developed a review and evaluation method for myopia prevention and control work, promoted pilot trials of myopia prevention and control reform, and introduced provincial-level myopia prevention and control implementation plans.
Urgent need to overcome technical difficulties
As an application-side enterprise, if they want to improve the light environment of young people, in addition to eliminating consumers' blind spots on healthy lighting, LED manufacturers must first do a good job of uniform lighting and glare control before uniform standards are formulated. Difficulties are also urgent problems to be solved.
In this regard, Cai Jianqi, director and researcher of the Visual Health and Safety Protection Laboratory of the China National Institute of Standardization, said that health lighting needs to be based on the research of photobiological mechanisms. At present, the research of photobiological mechanisms has just begun globally. An interdisciplinary and comprehensive research integrating optics, medicine, life sciences, materials science and other disciplines. To truly overcome the technical difficulties of health lighting in the future, to a large extent, it is necessary to establish a discipline system that integrates optics and life sciences. The process is easy to understand. Only through scientific and effective subject education can we truly cultivate talents who meet the needs of health lighting research and development and design, and can truly overcome all kinds of difficulties in health lighting.
Dr. Xie Zhiguo, Deputy General Manager of Guoxing Optoelectronics White Light Device Division believes that the current health lighting is mainly to create a safe, comfortable and friendly lighting environment for the environment. The main technical difficulties in creating this lighting environment are reflected in the following three aspects: , 1: the spectral design of the light source, that is, to meet the high light efficiency and high light quality; 2: the design of lighting fixtures, reasonable design of the selected light source to avoid adverse factors such as glare, flicker; 3: the selection The luminaires have a reasonable lighting design, and use a space to create a good atmosphere under a reasonable illumination condition. These three technical difficulties require LED packaging, lighting and lighting designers to work together to specialize in the corresponding technical points, and to combine these advantages to promote the application to the scene of the light environment requirements, so that these technologies in a wider range Application to further promote technological progress in this area.
The future development trend of health lighting must closely follow the technological development of light source chips, increase efforts to achieve high color reproducibility, create technologies that are extremely close to sunlight, and develop light sources closer to the solar spectrum to each product. From the structure, Optically solve the problem of glare, eliminate direct or indirect glare, and improve the use experience.
Company layout: Eight immortals cross the sea, each shows its magical powers
Either the lack of a unified standard or the technology is difficult to overcome, it is undeniable that the era of LED health lighting has arrived. In the interview, Aladdin News Center learned that it is also fancy about the future development potential of LED health lighting. Major manufacturers in the LED industry have begun to compete in this area, layout, planning, spreading, eight immortals crossing the sea, each showing their magic.
In recent years, many LED companies have launched a series of health lighting products. In October 2018, Guoxing Optoelectronics launched Eyelove ?, a health lighting LED device brand, covering natural light DL series and healthy light EC series, Eyelove? Health lighting LED, which essentially reduces the short-wave blue light damage caused by ordinary light sources and reduces visual fatigue. At the same time, in combination with activity scenes, such as classrooms, study rooms and other specific places, the spectrum can be adjusted appropriately to protect children's eyes and improve visual comfort. Jiangxi Shenghui Optical Co., Ltd. launched the corresponding lamp accessories-URG anti-glare diffusion plate, which has the function of correcting and adjusting the light distribution of the lamp, so that the light emitted by the lamp is more uniform, soft, and improves the light distribution of products such as lighting. Uniformity, reduce glare and eliminate discomfort caused by glare to the human body.
LED downstream companies, including Kaiyao Lighting and Rieter, also launched a number of health lighting products. Kaiyao Lighting, based on "optical" and "smart" technologies, has launched basic and flagship series of eye-protection LED classrooms and blackboard lights, as well as intelligent series of classroom lighting systems, for primary and secondary school and kindergarten classroom application scenarios. Rieter mainly focuses on education lighting, and has extensively carried out classroom light source transformation activities to create a healthy light environment for the school; Xinguanglian Optoelectronics Layout created the "Phoenix · Xinguanglian" brand health education lighting system, and introduced LED writing board lights And other products, this product has now been upgraded to the second generation, the lamp uses dual light sources, asymmetric light distribution, so that the illumination uniformity of the writing board reached 0.9 or more. Micro-lighting also started from the field of education lighting segmentation, and introduced a series of products based on eye-refining technology, table lamps and grille lights, and dimming and color temperature that can change with the rhythm of the human body over time. Guangsheng Lighting also introduced a school lighting system based on classroom lighting and eye-protection-free glare-free table lamps. Enterprises such as Shangwei Lighting and Kaitu Electric have also joined this arena and launched corresponding eye protection desk lamps, eye protection smart home lights, bedroom lights, eye protection blackboard lights, classroom lights and other health lighting products. These companies have now served hundreds of schools and launched a number of related new products in recent years.
It can be seen that the healthy era of LED lighting companies' open flowers is advancing step by step.
It is worth mentioning that Guoxing Optoelectronics has deeply researched light health research. Based on the visual effects of light and human health (visual fatigue, light hazards such as macular degeneration, etc.) and non-visual mechanisms, it essentially improves the light quality and reduces the light source. The short-wave blue light damage caused by ordinary light sources reduces the visual fatigue of the human eye. Eyelove ?, a healthy lighting LED device brand, has attracted wide attention from customers at home and abroad, and has been favored by the market and recognized by the industry for its excellent performance. In 2019, it won the Aladdin Magic Lamp Award for Best Product and Outstanding Technology Award, which is hailed as the "Oscar" of China Lighting. Eyelove? Took the lead and became the only white LED device that won the award. In this regard, the final judges of the Aladdin Magic Lamp Award 2019 and Professor Xiao Hongqing of Taiwan University of Science and Technology evaluated Eyelove? Closer to the solar spectrum, and the purple light band and low-band blue light are lower than the solar light source, which greatly reduces the damage to the retina by purple light and low-band blue light. , Is a healthy and comfortable artificial sunlight. Li Bingqian, nominated member of the Aladdin Magic Lamp Award 2019 and professor of the School of Applied Physics and Materials of Wuyi University, also said that Eyelove? Uses purple light excitation and special phosphor technology, and the spectrum covers the 400-780nm band, which can achieve high-quality sunlight-type lighting . Its healthy light EC series is a short-wave blue light series LED, which uses a special spectrum deployment technology (patent-approved) to filter the short-wave blue light that hurts the human eye, forming a healthier spectrum, which is more conducive to eye health.