New LED products are available every week, but if LED products want to maintain their dominant position in the next few years, their costs must be reduced to some extent. The goal of solid-state lighting production set by the US Department of Energy (DOE) last year is one-tenth of the current reduction in production costs by 2020, and this goal is far from enough; the LED industry currently wants to compete with fluorescent lamps, and it must be every thousand in 2015. The cost of lumens has dropped to 1/8 of the current level. According to the previous data, the current US$18 per thousand lumens will be reduced to US$2.20 per lumen. DOE will release its final LED solution this summer. According to industry experts, the best practices for cost reduction are as follows: system integration, metrology testing, and fluorescent materials. At the same time, special equipment for the production of LEDs also provides a way to reduce costs. The DOE Research Fund develops low-cost projection lithography tools by introducing Ultratech-specific design processing for curved transparent sapphire substrate tools; introducing KLA-Tencor's inspection tools for mapping micro-traps that cause LED defects; introducing Sandia National Labs And Veeco's pyrometer; the pyrometer can directly measure the critical temperature of the transparent wafer, so as to better control the quality of epitaxial deposition. Users and suppliers are continually striving to move toward the SEMI standards committee's standards, including standards for the production of sapphire substrates and hardware and software interfaces for industry-related system automation. Progress in reducing unit lumen costs Paul Scheidt, product sales manager at CREE , points out that recent advances in LED production mean that our LED bulbs are closer to $10. The key is that the effective display area has made significant progress, continuously reducing the cost of LED light efficiency and heat dissipation. He pointed out that this advancement reduces the cost of LED packages and chips and ensures color consistency; this package mode is easier to use directly for the user. The metal matrix LED chip allows the user of the non-reflow soldering device to connect the heat sink substrate by hand soldering. Combine each blue chip with the correct fluorescent material to achieve continuous white light. The 100 lm/W chip completed in the lab is about to be mass-produced. Scheidt pointed out that “the highest efficiency that can be achieved in the laboratory is 230 lm/W; while the current industrial product efficiency is 130 to 140 lm/W. Future development will rely on fewer LEDs.†He pointed out that regulators have already removed products that are not functioning properly from the market; large-scale shopping malls now also have some low-cost light bulbs. He pointed out that "the quality of these bulbs is much better than anyone expected a year ago. The consumer market will grow much faster than expected. With the development of the market and the emergence of new products, the cost will no longer be so important. We may come to some conclusions from the development trend of thin film LED TV." In addition, progress has been made in simplifying the design of LED systems. One of the recommendations for simplifying the system is Intermatix's Remote Phosphor technology. Chuck Edwards, vice president of Intematix, stated, “We have seen more efficiency from integrated design; in the near future, we will offer a variety of efficient materials and better thermal management systems.†The advent of Remote Phosphor technology makes the integration of fluorescent materials and chips more convenient; and by removing the fluorescent material on the chip to cool down the performance of the billion. The use of Remote Phosphor technology also simplifies packaging issues and provides more freedom to use COB packages. Edwards pointed out that "many general lighting solutions will point to COB packaging." Progress in quantum dot technology Advances in quantum dots have also improved the efficacy of LEDs; this potential application has facilitated the scale production of such nanoparticles and provides a practical solution for the layers of polymer latex for lighting. These nanoparticles are capable of emitting the desired color, which is less luminous than the phosphor. According to Suresh Sunderrajan, president of NNCrystal, “In order to simulate natural light, the efficacy of the phosphors is 50-60%â€. Acuity Lighting and other suppliers' lighting secondary optics use NNCrystal's quantum dot solutions to generate warm white light. Sunderrajan pointed out that NNCrystal's technology can reduce the loss of resorption by distinguishing the emission and absorption characteristics of the core and outer shell regions; reducing the absorption and increasing its efficiency. The company has developed a stable and uniform polymer dispersion and 3D precision coating process. And this quantum dot material has been produced in its Chinese factory. Intelligent lighting increases value As technology advances, users have found that semiconductor luminaires have more uses than lighting. Combining LEDs with some simple sensors and controllers delivers the required illumination at the right time and in the right place, increasing energy efficiency. Jeremy Steiglitz, vice president of architectural solutions at Redwood Systems, points out that users will be able to recoup their investment profits within two years by replacing the traditional fluorescent light Re-lighting program with LEDs and low-voltage DC network sensors. “Lamps are like Trojan horses, everywhere.†Once the network is installed, users will find other uses. A wonderful application was found in the management of conference rooms. The occupancy sensor can detect which rooms are in use and the number of meetings; this makes it easier for users to find conference rooms; managers can also more quickly determine how large a company's employees need. Misting Fan Small Desk Fan,Battery Operated Fan,Battery Fan,Small Fan Shenzhen Hygea Technology Co.,Ltd , http://www.hygeaaromadiffuser.com
Simplify the assembly of small components of the system