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  • 2016 - 05 - 10
    In recent years, with the rapid development of information technology and communication technology such as the Internet, Internet of Things, cloud computing, etc., the skyrocketing data volume has become a serious challenge and valuable opportunity faced by many industries. 'Humans are moving from the IT era to the DT era,' Ma Yun, founder of Alibaba Group, often elaborates on this point of view. The information society has entered the era of Big Data. The emergence of big data has changed the way people live and work, and the mode of operation of enterprises. Ma Yun believes that the IT (Information Technology) era is based on self-control and self-management, while in the DT (Data Technology) era, it is a technology that serves the public and stimulates productivity. It seems that there ...
  • 2016 - 05 - 09
    With the release of more and more popular sci-fi movies, all kinds of magical robots and aircraft are very popular among young people. In recent years, consumer-grade drones and home robots have emerged as an emerging hot industry and are highly sought after in the global high-tech project market. The high-tech tools that were once seen on the screen are getting closer and closer to the lives of ordinary people. According to experts' prediction, by 2018, the global drone market will climb to more than $1 billion.At the same time, the robot market is also receiving unprecedented attention. At the beginning of the year, AlphaGo defeated the 'human-machine war' of the nine-part Li Shishi of Go, which won the eyes of the whole world. Under the background of the global development of the robot ...
  • 2016 - 05 - 03
    Technology comes from life, such as many avant-garde robots, and the design inspiration is the various animals in the world. Through animal design, they can work more flexibly and accomplish things that humans can't achieve, such as 'Cheetah' and 'big dog' that can carry heavy loads over the mountains. Of course, some animal-type robots are purely for entertainment.Robot cheetahRemember the 'big dog' of Boston Dynamics? The MIT robot cheetah looks like an upgraded version of the 'big dog'. Advanced programming algorithms combined with mechanical engineering design can run and jump like a real cheetah. Although its battery can only achieve 15 minutes of battery life, but like its name, it can be used to achieve super explosive power in a short time, and can be applied in areas such as emerg...
  • 2016 - 04 - 26
    On April 25th, Baidu and KFC jointly launched the smart concept store “KFC original+” in Shanghai. The secret robot plays the role of waiter in the store, and consumers can directly experience a series of services provided by the robot.The secret robot does not move, it needs to complete the service in a specific area. In the ordering area, consumers can complete the ordering with the secret robot through dialogue; in the holographic projection experience area, the secret robot displays the KFC's original chicken production process with 360-degree holographic imaging technology; consumers can also play music. The interactive area scans the QR code on the table and hears the music list recommended for the current scene.“The secret is the secretarial flagship product released at the Baidu Wo...
  • 2016 - 04 - 21
    In 2011, Jobs had a famous dialogue with Obama. Obama asked: 'How can I make Iphone production in the US?' Jobs' reply is very simple: 'Those jobs can't come back.' Although Apple's production line has moved back to the United States, the overall share is small and looks more symbolic than the actual meaning. . Jobs’s attitude is intriguing. We can’t help but think: Why didn’t Apple relocate the factory from China to the United States? Is it just because China’s labor force is cheap?I think it's not just because the labor is cheap, we often overlook the fact that China has the complete industrial chain necessary for the production of Apple mobile phones. In this production chain, a series of supporting processing and production, from production to processing, to some core components, inclu...
  • 2019 - 01 - 13
    On September 19, 2018 Hangzhou·Yunqi Conference officially opened in Yunqi Town. On the first day of the conference, more than 120,000 spectators were attracted to attend the event, which is the highest in history. The conference focused on “driving digital China” and launched digital exploration and research. In the 30,000 square meter eco-tech exhibition area, more than 200 technology companies from around the world participated in the exhibition, including Intel, NVIDIA and many other top technology companies, which gathered a lot of popularity.This year's Yunqi Conference, with the theme of “Drive Digital China”, gathered all the big coffees and discussed new technologies, new fields, new directions and new developments during the conference. At the Yunqi Conference, the artificia...
  • 2019 - 01 - 13
    For the first time, Dazu Robots debuted at the 20th Shanghai Industry Fair with an independent big family brand. At this event, the big family robots felt the feeling of “home”. This “home” feeling is mixed with pride and pride, and also contains hope. !From 1H to 8H, the big family is everywhereHan's Laser: 1H-C100Dazu Intelligent Equipment Group: 2H-E128Han superpower: 2H-B116Han's motor: 6.1H-E270Da Zu: 6.2H-E192Da Zu robot: 7.1H-F140Dazu Precision Transmission:8.1H-E274Da zu YuemingPride and prideHan's laser, Asia's first laser industry giant, after more than 20 years of development, not only in the laser industry, but also in the industry, has become a leader in many other industries, which has led to the accumulation of countless families in the world. loyal customers.Dazu Group Head...
  • 2019 - 01 - 13
    In the summer of 2018, the big family robots will tour the three places and appear frequently. The three regions are Central China, South China and East China. So what kind of intention does the big family robot choose to take such a triangle tour in the hot summer? Undoubtedly, these three places are important strategic points of the big family robots. The strategic iron triangle formed between them will make the road of the giant robots enterprising more clearly.Strategic point 1: Central China hinterland - Wuhan, HubeiOn June 5-8, 2018, Dazu Robots ushered in the first show in Central China - Wuhan International Automation and Robotics Exhibition.Dazu robot first show in Central China has attracted a large number of buyers to negotiateCentral China has the natural advantages of populati...
  • 2019 - 01 - 13
    On May 16, 2018, the 2nd World Intelligence Conference opened at the Tianjin Meijiang Convention and Exhibition Center. The conference was co-sponsored by the National Development and Reform Commission, the Ministry of Science and Technology, the Ministry of Industry and Information Technology, the National Internet Information Office, the Chinese Academy of Sciences, the Chinese Academy of Engineering, the China Science and Technology Association, and the Tianjin Municipal People's Government. The exhibition brought together more than 100 well-known domestic and foreign enterprises and scientific research units, including China Mobile, China Unicom, China Telecom, BAT, Microsoft, Tesla, Panasonic, and China Aerospace Science and Technology Group Fifth Institute, China Academy of Ordnance ...
  • 2019 - 01 - 13
    On the afternoon of March 20, 2018, Liu Qingsheng, member of the Standing Committee of the Municipal Party Committee and executive deputy mayor, went to the investigation and investigation of the Hanzu robot. Under the reception of Gao Yunfeng, the chairman of the Dazu Group, and Wang Guangneng, the general manager of the Hanzu robot, Vice Mayor Liu Qingsheng visited the Dazu robot. Product showroom, research and development center.Vice Mayor Liu Qingsheng concentrates on understanding the products of the big family robot - moduleAt the scene, Chairman Gao Yunfeng and General Manager Wang Guangneng introduced the star products and cores of the 6-axis collaborative robot Elfin, the mobile operator robot Star, the mobile robot AGV, the seven-degree-of-freedom desktop robot, etc. technology. ...

LED品质的影响因素有哪些?

Date: 2013-11-29
Views: 17

      大部分照明设计者认为所有LED产品的品质都是一样的,在这些制造商中只有一少部分能够制造出高品质的LED。对于只用作简单指示作用的应用,低品质的LED就足以满足要求了。但是在许多要求一致性、可靠性、固态指示或照明等领域里必须采用高品质的LED,特别是在恶劣环境下,例如在高速公路、军用/航空,以及工业应用等。

 

      在纽约地铁站等环境中,安全要求是很苛刻的,LED必须符合高质量的要求根本因素。 


      区分LED质量高低的因素是哪些?如何说出两种LED的差别?实际上,选择高质量的LED可以从芯片开始,直到组装完成,这期间有许多因素需要考虑。Tier-OneLED制造公司能够生产优良的、指标一致的晶圆是从高品质的LED制造材料做起的,进而可以制造出优良的芯片。在决定LED所有性能指标的条件中,晶圆生产工艺所采用的化学材料是相当重要的因素。

 
      一片2英寸晶圆可以切割出6000多个LED芯片,这里面仅有个别芯片的性能指标与整体不同。而一个优秀的芯片生产商制造的芯片在颜色、亮度和电压降等方面的差异性非常小。当LED芯片封装完成后,它们的许多性能指标就有可能存在很大的差别,如视角。此外,封装材料的影响也是相当大的,例如,硅树脂就比环氧树脂的性能好。

 
      优秀的LED制造商不仅能制造高质量的芯片,而且也具有根据LED的颜色、亮度、电压降和视角的不同而对其进行分类包装的能力。高品质LED供应商会向客户提供工作特性一致的产品,而品质较低的LED供应商则只能提供类似于“混装”的LED。


      对于高端的、质量要求严格的应用领域,例如机场跑道的边界灯,必须满足FAA级的颜色和亮度规范,为保证性能和安全,LED包装的一致性也是被严格限定的。包装等级较差的LED被用在要求严格的应用领域会导致过早发生故障等一系列非一致性问题,很有可能酿成重大事故。为了避免设备停机和保证设计中规定的LED具有可靠的工作特性,在高端和质量要求严格的应用中避免使用“混装”产品是相当重要的。

 

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