LED to improved overlap of the electron

The researchers attribute the enhanced results for the SQW LED to improved overlap of the electron and hole wavefunctions in the device, leading to improved recombination into photons. The performance is not enhanced to the same extent as for photoluminescence because the biasing in electroluminescence increases the polarization fields.led flood light has announced the completion of its installation of Acrich LED streetlights covering a section of 30km on Yang-zi River road in Yangzhou city. The company contends that Acrich LED streetlights, were chosen for the project in the city because they minimize the payback period within three years. The company says that this reduced payback period is because the cost of installation and maintenance are dramatically reduced. Seoul Semiconductor also asserts that Acrich streetlight is brighter and lighter than conventional DC LED streetlights.

The Acrich 2 module is composed of MJT 4040 packages. Multi Junction Technology is applied and Acrich IC replaces an AC/DC converter weighing almost 4kg. An AC/DC converter is essential for conventional DC LED module. The company says that the Acrich2 module enables lighting manufacturers to save time and cost to design the luminaries. The module raises the power factor up to 0.99 and offers a luminous efficiency of 100lm/W. Seoul Semiconductor notes that in addition to having a lifetime as long as 50,000 hours, the AC/DC converter is not necessary so it does not malfunction or reduce the lifetime of the streetlights.

Jae-bin Choi, the head of lighting division of Seoul Semiconductor mentioned that Acrich LED which had previously been used for the indoor lighting started to apply to the streetlights which is one of outdoor lightings, after China’s recognition of its high confidence and long life span as well as high output and efficiency, and now other cities, in turn, are establishing Acrich LED streetlights and tunnel illumination in their streets.Osram reports that it will shut down its production site in Tangerang, Indonesia, by the end of December 2013 at the latest. In Tangerang,Led high bay light manufactures traditional products, mainly incandescent lamps, with some 1,100 employees. The move is part of the company’s reorganization program initiated in 2012 and targets cumulative gross savings of about 1 billion euros by 2015.

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it is a leader in this technology

In addition to low gas consumption, the Wholesale Led high bay light is designed to combine high reliability with low operating and maintenance costs. Wherever possible, the system uses standard off-the-shelf materials, so customers can make use of existing stocks of spares. Custom parts, such as chamber and heater components, are deliberately designed to minimize complexity, reducing maintenance and service costs.Manufacture and sale of Metal Organic Chemical Vapor Deposition systems. VPE undertakes custom epitaxial equipment design on behalf of clients and also produces a range of epitaxial growth systems specifically for the LED industry.Soraa was able to leverage funding from the US Department of Energy (DOE), and now the company has been appointed by the DOE to lead a commission currently in progress focused on developing a low-cost GaN substrate, since it is a leader in this technology.
The incorporation of less LEDs per fixture enables simpler lamp design that uses a single LED light source and a simple heat sink, while producing 65W to 75W halogen equivalent light output and certified to operate at lamp temperatures of up to 120°C.Even though sapphire wafers offer cost-savings benefits over GaN, LEDs on sapphire and SiC have crystal defects such as dislocations that cap the amount of light harnessed, while often requiring lower operating temperatures to meet reliability and performance ratings.These limitations are accentuated when these LEDs are used in a small form factor fixture such as an MR16 lamp, which is installed in enclosed fixtures, while still requiring high light output, as in a halogen lamp to light-up a room.

Soraa is selling its LED products mainly through very high-volume bulk orders to offer more competitive pricing.The lack of a supply chain centred around Agent of floodlight substrates, as in the case of sapphire and silicon, and the benefit of the respective economies of scale will be an impediment for Soraa in gaining serious market share.However, if it becomes more vertically integrated and ramps up its fixture production, it can help create demand for its own products and possibly begin selling GaN wafers also for additional revenue.Soraa showcased a second generation of lamps that generate 40 percent more light recently at the Lightfair 2013 trade show in Philadelphia.Recently, a new research has claimed that the so-called ecofriendly LED lights may cause permanent damage to your eyes. The study found that exposure to LED lights can cause irreparable harm to the retina of the human eye.

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he held key positions in product marketing

Mark McKee is currently Director, Product Marketing for Veeco's MOCVD business and is responsible for the GaN product line. Prior to this role, he held key positions in product marketing and project management. Prior to joining Veeco, he was employed by Emcore Corporation, a leader in led high bay light equipment manufacturing where held positions as Staff Scientist and Director of North American Sales. He is a 20+ year veteran of MOCVD with extensive background experience in semiconductor technology. Mark McKee received his MS degree in Materials Science from Rutgers University, NJ. He has authored and co-authored over 25 technical publications. This LEDforum , he is to give a presentation as “Enabling Solid State Lighting through Advancements in MOCVD Technology”.
Francis Jen has joined KLA-Tencor in U.S. in 2000 as senior applications engineer, and then became senior applications manager for Darkfield wafer inspection technology and senior product marketing manager in Brightfield inspection technology. Currently he is the technical director for KLA-Tencor China since August 2007. He Prepares to share experience on “Process Control and Yield Management in LED Manufacturing”Robin Liao, the senior manager of Richtek, graduated in National Taiwan University electrical department, 5 years as design engineer and team leader in Taicom Data System, 13 years in MAXIM integrated products as FAE and senior marketing manager, and 3 years in Richtek as senior manage. Mr. Liao is to give a presentation on “ LED lighting driving modules design” in LEDforum 2013.

Chiu Lin joined wholesale nichia 160w led high bay light immediately as an engineer for new technology and new product development. After five years of research and study, Dr. Yao was promoted to Project Manager of Product Integration Division in 2011 and currently is Deputy Director of R&D Center of Epistar Corporation, in charges of LED lighting related product and technology development. Dr. Yao's researches are mainly about nano-pattern technology, roughing technology, and substrate bonding technology applied to LED lighting. He has received over 40 patents with 32 pending. This time, he will show his viewpoint on “Trends and Challenges of LED Lighting”.

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lighting can be manipulated to illuminate the curves in the road

Through Pixel Light, it’s possible to generate any particular beam-shape required to assist with the driver’s visibility. Discrete LEDs are turned on, off, or dimmed to form the most suitable beam at any stage of the journey. When combined with the vehicle’s navigation system, lighting can be manipulated to illuminate the curves in the road, as well as raise or lower when negotiating hills. This technology, when linked together with camera systems, also enhances illumination of road signs, pedestrians, and other objects in the driver’s line of sight, while minimizing the glare of oncoming traffic.Vehicle lighting has gradually migrated from xenon-based lamps to solid-state technology over recent years. Initially, the changeover concentrated on areas such as cabin illumination, parking lights, etc. More recently, though, it’s being used in the front lighting of mid-/high-end car models (and now becoming an option in lower end cars). Two main reasons behind the switch are the greater reliability and lower power consumption offered by LEDs. However, perhaps the overriding benefit is the lighting system’s versatility made possible by the LED’s adjustable output power, which can ultimately have a profound effect on automotive safety.
Pixel led high bay light and fast switching means that multiple blanking zones are able to be placed into the beam. The beam can be shaped or bent as required with a higher level of precision and without the need for shaping or bending motors, thereby simplifying system design and lowering the overall bill of materials.The variation in the electrical characteristics of each LED has a significant impact on lighting-system performance. For example, a considerable difference in the LEDs’ anode-cathode voltage can trigger high levels of heat dissipation, which raises power consumption and requires additional heatsinking. Until better LED matching becomes available, this topology will likely experience only limited success in AFS applications.Short-circuit switches disable individual LEDs so that the beam can be shaped as needed. It’s possible to avoid the power-consumption and thermal-management issues inherent in parallel topologies with system partitioning, if a companion chip is added into the circuit.

The first family of mid-power ceramic LEDs that offer no-compromise performance and reliability. Unlike today's common mid-power plastic packages, XLamp XH-G and XH-B LEDs enable lighting manufacturers to create a new generation of more energy-efficient, longer life LED lighting solutions without sacrificing cost or performance. XH LEDs are optimized for fluorescent replacement lighting applications such as troffers and panel lights, where high efficacy, lifetime and smooth appearance are critical.We're excited that Cree is offering high-quality, ceramic-based mid-power led flood light designed for real world lighting applications," said Roger Suen, supply chain management director, Light Engine. "The XH LED family gives us confidence in providing products that deliver stable lumen maintenance and good color consistency that cannot be duplicated by plastic packages.

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the global demand of cloud computing application

All Strategic Business Groups of of Lite-On showed stable order intakes, and cumulative consolidated sales of Lite-On Tech and its parent company from January to May came to NT$79.16 billion and NT$48.18 billion respectively.Due to the steady increases in the global demand of cloud computing application and mobile devices, Power SBG posted sequential revenue growth, owing to ongoing market share gains in high-end Networking Devices and led high bay lighting manufacturer  Meanwhile, Enclosure also posted a revenue growth of over 20% M-o-M, driven by the smooth delivery of high-end server enclosure products, while HIS posted a revenue growth of approximate 10%, supported by ongoing global market share gains as well as the smooth delivery of tablet keyboards, resulting in a sequential revenue growth of 12% in the Mechanical Competence SBG.
The performance of LED components and Lighting products is remarkable, the annual revenue growth in May is up to 24% , also an increase of 13% over last month, due to substantial demand from branded customers and delivery growth. Revenue from LED lighting components increased approximately 100% over last year. LED Outdoor Lighting business, including street lighting and general illumination, also posted a revenue growth of approximately 70% Y-o-Y, driven by increased demands for energy saving solutions in North America, coupled with the strong delivery of tenders won in Taiwan. Meanwhile, Vehicle LED Lighting products also enjoyed remarkable consecutive growth, resulting from increased market demand, as well as ongoing market share gains in worldwide automotive branded customers.

NVC announced on June 4 that Changjiang Wu and Dongming Wang will be elected as executive directors, and Ling Wu as an independent non-executive director, this appointment letter will be implemented after the shareholders' meeting. The increasingly worsening internal conflict of Led tunnel light finally draws to a close.For this, Pei Huang, the initiator of NVC minority shareholders revolution told reporters that Mr. Wu is a professional manager after the equity was changed, the occupations are reasonable as long as they are promoted according to the rules of corporate governance arrangements. As for that whether Changjiang Wu can return to NVC as chairman or not, an industry source told reporters that it would be fine as long as it is conducted in accordance with the rules of corporate governance.

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The wasted light in conventional optics designs

The housing of this light is composed of light-weight aluminum for comfortable handling and has an aluminum globe guard with hanging hook for added durability and easy placement. A rubber bumper can protect the light from impacts. This is a low voltage unit that is designed to run with the 12 or 24 volt AC current commonly used in areas where low voltages are preferred or required. Larson Electronics has fitted this lamp with 50 feet of Wholesale Led high bay light cord ending in a straight blade plug to provide simple standard connections and ample length for moving about a work area. This light is approved for Class 1 Division 1 and 2 and Class 2 Division 1 and 2 locations where flammable gases and vapors are present, which make it a good choice for petrochemical operations, water treatment plant use, tank cleaning and inspection, and other similar locations. It can create a safer, lower maintenance environment for our military, industrial and petrochemical operators.

Recently unveiled an ultra-bright LED fibre optic illuminators designed for architectural and signage applications. The new system combines the RTL technology's enhanced brightness with the long lifetime of LED technology.This combination overcomes past obstacles to fibre optic signage and architectural applications, which were hampered by the short lifetime of arc lamp illuminators and insufficient brightness of LED illuminators. The company's new illuminator can support both 3M single core fibre and Schott multi-fibre bundles, allowing the RLT system to replace neon-based signs currently used in a wide variety of side-firing applications.

The RLT technology greatly improves brightness to LEDs with full red, green, blue and white colour capability. Using a 4-colour Agent of floodlight ackage allows the light output to be digitally control and produce unlimited colour variations. This multi-colour capability is not available in traditional neon signs and will provide a new dimension in a broad variety of signage and architectural applications.Traditional light collection optics platforms do not increase LED brightness and as a result, are not efficient for projection. The basis of Wavien's RLT technology is a very low-cost recycling collar optical component that captures the wasted light in conventional optics designs, recycles the light and redirects it back into the output beam allowing increased efficiency, while reducing the power consumption.

the ROL lighting module series won the award this year

WitsLight’s ROL lighting module series was the winner of the 2013 Best LED Flood light Module award. WitsLight’s L-type, O-type, and R-type lighting module is able to afford 10-15W, 30-50W, and Led flood light power, respectively. These products are suitable for outdoor lighting such as gardens, parks, plazas, spotlights, and fishing lights, while the anti-glare function prevents glare when looking directly at the light source. The superior floodlight efficiency under a stable state, lighting pattern, lighting quality, as well as a wider application range are the reasons why the ROL lighting module series won the award this year.

When selecting a winner for the Best LED Street Lamp award, we focused on the product’s reliability, creativity of technology, luminous efficacy, and market performance.excelled in the fierce competition over this award with their SL-Victory LED street lamp. The SL-Victory street lamp applies vents designed for sports cars, the open design of the lamp shell allows the power supply to be safely replaced without using tools, a variety of wireless intelligent control systems support its energy-saving function, the high CRI is suitable for various types of roads, the internationally accepted AC input is applied so installation will be smoother, it provides 277V AC voltage, and the waterproof degree of the light source and power source is up to IP67.


WitsLight’s high efficiency LED street lamp applies a lighting module design; the company applies light source products from international first-tier manufacturers, and their products are carefully tested. In addition, the dustproof and waterproof degree of their street lamps is IP67, which means that such products are suitable for all types of harsh environments; the service life of these lighting products is up to 40,000 hours, which can greatly reduce the cost for replacement.As for market performance, YAHAM’s outdoor led flood light bulbs as already received subsidy from Taiwan’s Bureau of Energy, and WitsLight’s high efficiency LED street lamps are already installed in the parking lot of Taiwan Taoyuan International Airport, National Central University, Mohe in northeast China, and streets across Kunshan city, Jiangsu Province as well as Pyongyang, North Korea. The two LED products and their designs are clearly outstanding.

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