作者：Blade

New LED challenges laser lame

LED lamps are already the mainstream equipment of automobiles, with two major advantages of energy-saving and durability, making traditional halogen lamps or HID lamps have gradually disappeared; due to the small size of LED, there are better flexible applications in the design of headlights. A major breakthrough in LED technology, with stronger lighting distance and energy-saving effects, can even challenge more advanced laser headlights.

New LED challenges laser lamps

Shuji Nakamura was the winner of the 2014 Nobel Prize in Physics, also known as the father of blue LEDs. Based on the research results of blue LEDs, he produced a pure white LED lamp. Under the supervision of Nakamura Shuji, SLD Laser launched a new LED. White light, this new LED luminaire has a lighting distance of up to 1 km and consumes less energy than traditional LEDs, pushing the capabilities of LED luminaires forward.

The performance of SLD Laser’s LED lamps is comparable to that of laser headlamps. At present, both BMW and Audi have laser headlamp technology. Laser lamps use laser beams to project to the reflector to produce a strong beam, which consumes less energy than ordinary LEDs, but costs Expensive and only equipped in high-end cars; LED lights developed by SLD Laser are already comparable to laser lights in performance. In addition, they are low in cost, easy to replace and small in size. In order to verify the performance of the lights, SLD Laser won the Baja 1000 off-road rally champion Cameron Steele’s car is equipped with a new type of LED light. This group of lamps is used for night searches. Due to the powerful performance of this LED lamp, due to the differences in lighting regulations in various countries, the new LED will be the first to be used in competitions or special purposes. It may replace laser headlights in commercial vehicles and stabilize the dominant position of LED lamps.

DALI Alliance joins IP-BLiS

It is reported that the DALI Alliance has recently joined the “IP Building and Lighting Standards” market interest organization IP-BLiS to support the integration of Internet Protocol (IP) transmission and security mechanisms to simplify the deployment, supply, and protection of complex building systems.

DALI Alliance joins IP-BLiS

IP-BLiS was jointly launched by BACnet International, KNX Association, OCF, Thread Group, and Zigbee Alliance in June 2020. Together, these standards organizations support the widespread adoption of IP-based security, a multi-standard infrastructure, as the backbone of lighting and building automation solutions in commercial buildings.

The use of IP as a common network protocol allows IT systems and building services (including lighting control) to operate on all configurations that are secure, IP-based. Therefore, building operators can look forward to end-to-end addressing and security, easy connection between previously independent applications; unlimited scalability; better, faster, and lower-cost integration; and great flexibility Sex and physical transmission and application choice.

Paul Drosihn, general manager of the DALI Alliance, said: “On behalf of all the leading lighting companies that make up our members, we are very happy to join IP-BLiS and help solve the complexity and connectivity barriers in smart buildings.” “Internally, our team is working Significant progress is made towards the first IP-based DALI specification, which will enable DALI networks to have wireless connectivity, as well as IP, addressing, and security.”

“DALI, as a leading digital lighting control protocol, joined IP-BLiS, and once again emphasized the importance of making commercial buildings more sensitive to user needs through the promotion of security, IP-based multi-standard, IoT-based IoT solutions. The vision of IP-BLiS. As DALI becomes a new member, we see that IP-BLiS has been confirmed in its previous activities and succeeded in the future roadmap of IP-BLiS,” IP-BLiS Chairman CastoCa Avate said.

IP-BLiS will speak in a unified language to facilitate IP-based network connections with common transmission and security requirements, and organizations will not create their own standards. Each participant is responsible for specifying his own technology. This allows companies to decide which solution is best for their business and use cases.

Similarly, IP-BLiS attempts to adjust the industry’s safety requirements, rather than reinvent them. Security issues are discussed in the IP-BLiS blog, titled “Common Myths About IP Networking for IoT”.

Changzhou has achieved remarkable results in promoting green LED lighting

Since the “13th Five-Year Plan”, the city’s urban lighting facilities have increased from 390,000 to 710,000, but the annual electricity expenditure has decreased correspondingly, from 94.79 million RMB to 69.44 million RMB, a decrease of 36.5%.

Changzhou has achieved remarkable results in promoting green LED lighting

“There are more street lights, but fewer electricity bills. This is due to the city’s continuous promotion of LED transformation, the simultaneous implementation of the construction and application of smart lighting systems, and the improvement of energy consumption management through scientific design, reasonable regulation and other management methods.” Municipal Urban Lighting Management in charge said.

Since 2017, our city has comprehensively promoted the LED transformation of urban road street lights. Up to now, nearly 28,700 street lights on 244 roads in Zhonglou District and Tianning District of our city have basically achieved full LED coverage, saving nearly 8 million RMB in electricity bills each year, which reduce carbon emissions by 12,000 tons.

At the same time, the city has innovated system construction and independently developed a single-lamp control platform with patents and intellectual property rights-“NB-IOT-based intelligent lighting system”, which is a single-lamp control device equipped with 5G communication technology for lamps. “The single-lamp control system combined with the single-lamp controller can realize the automatic point-to-point switching, dimming, automatic fault reporting, data management and other functions of each street lamp.” said Chen Yang, section chief of the Facilities Management Section of the Municipal Urban Lighting Management Office. Which street lamp fails, mainly depends on staff inspections or citizens’ feedback, and now the staff can find out in time through the single-lamp control platform, which provides a guarantee for rapid processing. At present, the coverage rate of single light control of urban roads and street lights is nearly 80%.

Chen Yang introduced that by independently developing the lighting system and formulating “data standards” and “communication protocols”, the Municipal Urban Lighting Management Office can realize the access of any brand of lamps and single lamp control equipment, for the subsequent operation and maintenance and long-term management of lamps laid a solid foundation. Using the “Internet +” means, the operation and maintenance of urban lighting facilities has been transformed from “car patrolling and running” to “big data running”, and the number of lamps maintained per capita increased from 7,500 to 12,000, an increase of 60% Under the circumstance, the lighting rate is 99.4%, which is always far higher than the national standard of 98%, and it also exceeds the national civilized city assessment standard of 99%.

On the basis of the single-lamp control system, the Municipal Urban Lighting Management Office further combined GIS, three remotes, mobile inspection, intelligent warehousing and other information systems to integrate and develop the “Changzhou City Urban Lighting Integrated Management Platform” which was officially launched in June 2019. The commissioning has further improved the urban lighting operation and maintenance and public service capabilities. In the “Provincial Urban Green Lighting Evaluation” work, the system was highly evaluated by the Provincial Housing and Urban-rural Development Department and its counterparts across the province. It is considered that its advanced technology concept, innovative construction mode, and overall system practicability have reached the industry leading level.

Perovskite LED realizes large area and high efficiency preparation

The reporter learned from the University of Science and Technology of China that Professor Xiao Zhengguo’s research group from the School of Physics of the school has made important progress in the field of large-scale preparation of perovskite LEDs. The research team used an air knife-assisted squeegee method to prepare a large-area, high-efficiency perovskite LED, which is an important step towards the commercial application of perovskite LED lighting. Related results were published in the journal Nature Communications.

Perovskite LED realizes large area and high efficiency preparation

Metal halide perovskite LEDs have become a new generation of LED devices because of their advantages such as wide color gamut, easy adjustment of bandgap, narrow luminous half-peak width, and ease of preparation. In 2014, it was reported for the first time that perovskite LEDs emitting light at room temperature have an external quantum efficiency (EQE) of less than 1%. In just a few years, the EQE of perovskite LEDs has exceeded 20%, which is close to commercial organic LEDs (The level of OLED) has shown broad application prospects in the field of lighting and display. However, the current high-efficiency perovskite LEDs are all prepared based on the spin coating method, and the device area is very small, only on the order of square millimeters, which cannot meet the needs of large-area commercial lighting. The blade coating method is a method based on the solution method to prepare large-area thin films, but the crystallization process of the perovskite film prepared by the blade coating method is not easy to control. The EQE of the prepared perovskite LED is only 1.1%. The device area is only 9 square millimeters.

In response to the above problems, Xiao Zhengguo’s research group took organic-inorganic hybrid perovskite CH3NH3PbI3 as the research object. By reducing the concentration of the perovskite precursor, 4-fluorobenzylamine was introduced and combined with air knife-assisted methods to make the film crystallization process more nucleation sites are formed in the medium, thereby preparing a uniform and dense perovskite polycrystalline film with a surface roughness of only 0.8 nanometers. The large-area perovskite film prepared by the knife coating method exhibits excellent uniformity in terms of thickness, surface roughness, fluorescence yield, and fluorescence lifetime. The EQE of the perovskite LED device prepared by the knife coating method is up to 16.1% (0.04 cm2) and 12.7% (1 cm2). The perovskite LED with a large area of 28 square centimeters emits a very uniform red light when working. At the same time, the research group also prepared flexible perovskite LEDs based on PEN/ITO substrates by squeegee coating, laying a foundation for the preparation of large-area flexible optoelectronic devices.

This research result fully demonstrates the feasibility of preparing large-area, high-efficiency perovskite LEDs by the squeegee method and the great prospect of applying it to commercial LED lighting.

Policies are issued to help the development of LED lighting industry

In recent years, in order to promote the rapid development of the LED lighting industry, China has successively introduced a series of industrial plans and policies related to LED lighting. Among them, the “Thirteenth Five-Year” urban green lighting plan was issued in August 2016 and 2017 July’s “Thirteenth Five-Year” development plan for the semiconductor lighting industry, January 2018 China’s optoelectronic device industry technology development roadmap (2018-2022), December 2018 “China’s phasing out incandescent lamps and accelerating the promotion of energy-saving lamps action plan 》, April 2019 on agreeing to launch the “ten cities and ten thousand” semiconductor lighting application project pilot work, July 2019 “Highway tunnel LED lighting design and construction technology guide”, December 2019 “Architectural lighting design standards (Draft for Solicitation of Comments). Then, due to the serious overseas epidemic, the General Office of the State Council issued the “Implementation Opinions on Supporting the Conversion of Exported Products to Domestic Sales” in June 2020, which clearly pointed out: encouraging enterprises to expand international markets while supporting exports The products are sold domestically to help foreign trade companies bailout.

Policies are issued to help the development of LED lighting industry

According to relevant data, the global LED lighting output value reached 601 billion yuan in 2018, and the global LED lighting output value reached 662 billion yuan in 2019. It is estimated that the global LED lighting output value will reach 728 billion yuan in 2020. From 2016 to 2018, my country’s LED lighting products have continued to grow. The output in 2018 was about 13.5 billion pieces. It is estimated that the output in 2019 will increase to 17.6 billion pieces, and the sales volume is estimated to reach 8.1 billion pieces. From the data, it can be seen that in my country The production and sales rate of LED lighting products is relatively stable. Under the background of the policy incentives of countries around the world and the growing demand for replacement of new and old light sources, the potential demand for the LED market has grown substantially. In the future, with the improvement of e-commerce channels and the advancement of Internet +, the penetration rate of the lighting industry will also increase dramatically.

Signify launches a new brand of LED lighting to meet the diverse needs of customers

In recent years, with the development of lighting technology, Chinese lighting users have a more in-depth interpretation of the functional characteristics of lighting products, and thus have higher requirements for lighting application experience. Facing such a terminal situation in the industry, how to make lighting products more competitive in user experience has become an important indicator of whether lighting channel distributors and electrical service providers can win the market.

Signify launches a new brand of LED lighting to meet the diverse needs of customers

Recently, Signify’s sub-brand Plylot officially entered the Chinese lighting market, and brought three important products: LED full-luminous ultra-thin flat light, LED flood light, and dual-end power LED tube, which is wholesale for China’s lighting Channel merchants and end-users bring new lighting application optimization solutions.

As one of the preferred brands of professional electricians in the world, based on the excellent reputation accumulated in the industry over the years, the high-efficiency, energy-saving, and reliable products of Plylot have been recognized and favored by distributors, electricians, and users of lighting wholesale channels in many parts of the world. . The three important products entering the Chinese market this time will bring business opportunities to Chinese lighting channel distributors and electrical service providers, as well as new application experiences for Chinese lighting users.

Higher light efficiency brings a more comfortable lighting experience

In the after-sales service of China’s lighting wholesale channel distributors, customers often complain about the uncomfortable visual effects of the LED lamps they purchase. When dealing with this type of problem, dealers often need to contact the technical staff of the lighting manufacturer to find a suitable time to help customers check the light-emitting problem of the lighting. They also need to contact the electrical service provider to solve a series of processes such as lighting disassembly and assembly. This requires a lot of manpower, material resources, and various expenses, and the final problem may not be finally solved. The most unfavorable thing for dealers is that the emergence of lighting efficiency problems will affect their recognition in the eyes of customers, and will have a negative impact on future market operations.

The problem with the luminous efficiency of LED lamps is that manufacturers only pay attention to the luminous brightness of the light source and have not formulated an effective light distribution plan. In view of the light comfort problem of Chinese lighting users for LED lighting products, the three major products of Puri Le have made unique optical design: its LED all-luminous ultra-thin flat light adopts a full-size light-emitting high-efficiency optical design, which is visually uniform. Spots, even when shooting with mobile phones, there will be no stroboscopic; its LED floodlight has a textured tempered glass mask, which not only increases the aesthetics of the lamp body but also makes the light soft and comfortable, reducing the irritation of glare to the eyes, through ultra-thin integration The style design greatly reduces the exposure of the lamps and achieves the effect of “seeing the light but not the light”. It is a perfect substitute for traditional floodlights; its double-ended power-in LED tube uses high-quality chips to achieve light efficiency. Up to 100lm/W, achieving 1600lm light output, the brightness is equivalent to 36W fluorescent tube, not only high efficiency and energy saving but also in line with IEC62471 non-light biological hazard standards, ensuring eye health.

The unique optical design of the three major products of Puli Le allows distributors participating in product marketing to sell products while also promoting a lighting light perception service to end lighting users, allowing those participating in the brand’s product wholesale channel promotion Merchants have changed from user-selectable “light sellers” to “light sellers” users vying to choose, enhancing their market credibility.

Standards for LED lighting products to enter the Vietnamese market

From January 1, 2020, Vietnam has begun to enforce the energy efficiency labeling program for LED lighting products.

Standards for LED lighting products to enter the Vietnamese market

According to Resolution No. 04/2017/QD-TTg Decision of the Ministry of Industry and Trade (MOIT) of Vietnam, LED lights are included in the control of Vietnam’s energy efficiency regulations. Energy efficiency labels can only be applied after meeting the minimum energy efficiency standards and obtaining the energy efficiency declaration DoC. Sold to the Vietnamese market, the mandatory implementation date is January 1, 2020.

Applicable regulations:

1. Decision No.04/2017/QD-TTg: Comply with the provisions of the equipment list of Vietnam energy efficiency regulations;

2.Circular 36/2016/TT-BCT: According to the requirements of the conformity declaration procedure and required documents of the Vietnam National Energy Efficiency Plan (VNEEP);

3. Decision No. 4889/QD-BCT: The official announcement and guideline for applying MEPS standard for LED lighting.

standard test:

1. TCVN 11843: 2017-Test methods for LED bulbs, LED lamps and LED modules;

2. TCVN 11844: 2017 – Energy efficiency of LED lighting products.

Note: In the initial stage of mandatory, MEPS and EE DoC are only mandatory for LED lamps with E27 and B22 self-ballasted LED bulbs and G5 and G13 double-headed LED tubes with a maximum power of 60W and a nominal voltage not exceeding 250V. The MEPS implementation roadmap for other products (LED illuminators, LED modules, etc.) will be released by MOIT in the future. You can also apply for voluntary energy efficiency label certification.

DoC procedure application documents:

1. Vietnam Energy Efficiency Declaration of Conformity (DoC);

2. Energy efficiency test report;

3. Energy label design.

Note: The certificate holder is only allowed to use the Vietnamese energy efficiency label after completing the DoC procedure.

Energy efficiency label style of lighting products:

From June 1, 2020, Vietnam will start the safety and EMC control of LED lighting products, and enforce CR Mark.

In September 2019, the Ministry of Science and Technology (MOST) of Vietnam issued Circular No.08/2019/TT-BKHCN, which approved the technical regulations QCVN19: 2019/BKHCN for the safety and EMC requirements of LED lighting products, and implemented CR Mark certification.

Implementation schedule:

From June 1, 2020, domestic and imported LED lights must meet safety and electromagnetic interference (EMI) requirements (QCVN19: 2019/BKHCN Section 2.1.2; 2.1.3 and 2.2.1);

From June 1, 2021, domestic and imported LED lights must meet all the requirements of QCVN19: 2019/BKHCN: including safety, EMI and EMS;

Individuals and companies are encouraged to apply for the certification of LED lights voluntarily according to QCVN19: 2019 / BKHCN from December 31, 2019.

Replacement of electric lights in the basement of the building with induction LED lights

The New Taipei City Public Works Bureau has put forward the “Replacement Subsidy Plan for the Lighting Replacement of Indoor Parking Lots in Multi-unit Residential Buildings” in 107. If the basement lamps in the community are old, they should be replaced with energy-saving lamps according to regulations. The luminous efficiency of LED bulbs must meet the standard and must have automatic switching, dimming or timing control, etc., communities with more than 500 households can receive a subsidy of up to 800,000 RMB.

Replacement of electric lights in the basement of the building with induction LED lights

If the lamp equipment in the basement garage of the community is old, the community can apply for subsidies from the New Taipei City Works Bureau when replacing the lamps. The Works Bureau emphasized that the replacement lamps must have energy-saving and point-saving labels, and must be “inductive” LED lamps with a luminous efficiency greater than 120 (lm/w); the subsidy amount can account for up to half of the total amount, and the number of community households is not Up to 200, the maximum limit is 200,000, between 200 and 500 households, the upper limit is 400,000, and the upper limit is 800,000 for communities with 500 households or more.

The Public Works Bureau stated that the community’s replacement of basement lamps must hold a “differentiated ownership meeting”, which can only be replaced after more than half of the households agree. If the meeting is held late or a consensus is not reached, it may delay the community’s application for subsidies. Therefore, the lighting replacement subsidy in 107 has been postponed to the end of September this year to facilitate the application for the replacement of lamps in 107 communities; if the community is happy with lamps in 108, you can still apply for the 108 projects subsidy based on the issuance time on the invoice.

The Bureau of Works said that about 60 communities have applied for the 107 subsidy program, and 6.9 million have been subsidized. The total budget of the 108-year program is about 15 million, encouraging communities to replace lamps with energy-saving lamps; New Taipei City has received subsidies, Communities will also conduct spot checks because of the huge amount of subsidies in communities with more than 500 households. The proportion of spot checks is 100%. In communities with less than 200 households, the sampling rate is over 10%.

LED combined with AI to create the best in-store lighting system

German Research Center for Artificial Intelligence; DFKI and the European Agency for Technology and Innovation (EIT) team up with a supermarket in Saarbrücken, Globus, Philips Lighting, and other companies to conduct pilot experiments to study how the differences in color lighting systems combination affect sales and customer behavior.

LED combined with AI to create the best in-store lighting system

In this experiment, the researchers spent two months testing different lighting conditions in the promotion display area of about 180 square meters in the supermarket (equipped with Philips StoreWise and LED lighting system). The researchers tested three settings: uniform overhead chandeliers in the store, general spotlights, and a combination of spotlights and soft-colored uplights.

The 58 spotlights used in the experiment enhanced the contrast and increased the color uplights (for the ceiling), thereby enhancing the appearance of the product, and also helping to distinguish the promotion area so that the product can be seen from a farther place to creates a unique atmosphere and changes the mood of shoppers.

Each light point in the lighting system can be independently controlled through the Philips StoreWise web application and can be individually adjusted according to color, brightness, and saturation. Sensors in the ceiling and 300 shopping carts are used to record the number of visitors and the time they spend in the area compared to the rest of the store. In addition, the researchers analyze the data to compare the sales figures and check the number of products purchased from this special lighting area.

According to this study, the most attractive setting for consumers is the use of spotlights with soft-colored uplights, which can help increase sales by 6% in the promotion zone. Compared with the standard lighting settings in the store, the same colored light set can create the best customer pause time for the promotion area, increasing the customer visit rate by about 15%. And just replacing traditional lighting fixtures with spotlights increased the customer visit rate by 7%.

“Using next-generation lighting systems like Philips StoreWise and indoor positioning systems, it is expected that retail stores can analyze in-store sales and traffic data in real-time, and adjust lighting conditions to optimize sales,” Gonneke, senior marketing director, Philips Lighting Gros said.

The result of this experiment in the Globus supermarket is to force stores to install StoreWise and LED lighting systems as soon as possible.

New LED challenges laser lamps

LED lamps are already the mainstream equipment of automobiles, with two major advantages of energy-saving and durability, making traditional halogen lamps or HID lamps have gradually disappeared; due to the small size of LEDs, there are better flexible applications in the design of headlights. A major breakthrough in LED technology, with stronger lighting distance and energy-saving effects, can even challenge more advanced laser headlights.

New LED challenges laser lamps

Shuji Nakamura was the winner of the 2014 Nobel Prize in Physics, also known as the father of blue LEDs. Based on the research results of blue LEDs, he produced a pure white LED lamp. Under the supervision of Nakamura Shuji, SLD Laser launched a new LED. White light, this new LED luminaire has a lighting distance of up to 1 km and consumes less energy than traditional LEDs, pushing the capabilities of LED luminaires forward.

The performance of SLD Laser’s LED lamps is comparable to that of laser headlamps. At present, both BMW and Audi have laser headlamp technology. Laser lamps use laser beams to project to the reflector to produce a strong beam, which consumes less energy than ordinary LEDs, but costs Expensive and only equipped in high-end cars; LED lights developed by SLD Laser are already comparable to laser lights in performance. In addition, they are low in cost, easy to replace and small in size. In order to verify the performance of the lights, SLD Laser won the Baja 1000 off-road rally champion Cameron Steele’s car is equipped with a new type of LED light. This group of lamps is used for night searches. Due to the powerful performance of this LED lamp, due to the differences in lighting regulations in various countries, the new LED will be the first to be used in competitions or special purposes. It may replace laser headlights in commercial vehicles and stabilize the dominant position of LED lamps.