Japanese Nanoco Group has made great breakthrough on a 1kg batch of green cadmium-free quantum dots for a major Japanese corporation, triggering a US $2 million payment to Nanoco. The green quantum dots were produced at Nanoco's production facility in Runcorn, Cheshire. It marks major technical achievement by Nanoco because green dots are significantly more challenging than red ones due to their smaller size. The Japanese corporation plans to incorporate Nanoco's red and green quantum dots including the backlighting of LCD displays and LED-based general li...

First issued patent of 7 patents pending around Lumentalk technology Lumenpulse Inc., a leading innovator and manufacturer of high performance, architectural LED-based lighting solutions for commercial, institutional, and urban environments, today announced it has received U.S. Patent 8,179,058, issued May 15, 2012. The patent, the first of seven pending for the company’s Lumentalk™ technology, provides a method of intuitively reading a traditional analog TRIAC dimmer in a digital fashion, which enables digital control of LED lighting over existing AC po...

Recently, a team of researchers from North Carolina and Japan have jointly made a breakthrough on UV disinfection using LED technology. As we know, aluminum nitride (AlN) is used in LEDs, based on its strengths which can handle a lot of power and create light in a wide spectrum of colors, particularly in the UV range. But AlN LEDs to create UV light have been severely limited because the substrates that served as the foundation for these semiconductors absorbed wavelengths of UV light that are crucial to applications in sterilization and water treatment technolo...

Seoul Semiconductor has showcased its 3020 Series, adding to mid-power LEDs family in booth 3538 at the Lightfair International trade show in Las Vegas . The 3020 Series will be offered in the full range of ANSI white space, with standard binning and LM-80 testing. The entire family is general illumination class and comes with coloring rendering index (CRI) versions of 80 or 90 (minimum) and with luminous efficacies as high as 151lm/watt (cool white) and 136lm/watt (warm white). Following the firm’s 5630 package, the new LED is particularly suited to sma...

Bridgelux Inc. and Toshiba Corporation announced that Bridgelux and Toshiba have achieved the industry’s top class 8” GaN on Silicon LED chip emitting 614mW, <3.1V@350mA with 1.1mm square chip, just months after they have engaged in a joint collaborative agreement this year. Bridgelux and Toshiba will further accelerate their development efforts for LED chips, which have seen increasing demand for LCD panels and lightening systems world wide. Toshiba has also made an equity investment in Bridgelux with the intent to jointly pursue an innovative t...

Recently, researchers from Japan and California have jointly made a breakthrough on blue and green LEDs to reduce efficiency droop. According to the research team, they designed low droop and high efficacy LEDs by altering the direction of the crystal structure within semiconductor films. Droop refers to significant drop in efficiency at extreme currents. It is one of the major factors that retard the growth of the solid-state lighting market. Household bulbs generate white light due to the mix of wavelengths with the hue produced from blue and green LEDs. These valuab...

Recently, NGK Insulators Ltd has made a breakthrough on LED Luminous Efficiency with a gallium nitride (GaN) wafer. The company claims that the new GaN wafer can realize twice as high a luminous efficiency as existing LED light sources (200lm/W). According to the company, it realized a transparent and colorless wafer with a low defect density by using its own liquid phase growth method for a single-crystal growth process. Generally, existing LED devices have an internal quantum efficiency of 30-40% (with a current of 200mA). However, under the help of a resea...

Sunovia Energy Technologies, has been issued U.S. Patent No. 8,018,161 B2 relating to the wireless control and battery backed operation of LED lighting systems. And the company also plans to license this technology as well as integrate the proprietary controls into its utility and commercial product lines. According to the company, the issuance of patent no. 8,018,161 B2 provides additional protections for Sunovia's proprietary brand of EvoLucia Aimed Optics(TM) products, and fortifies the company's strategic initiatives to further advance the controls and mon...

O2Micro(R) International Limited was issued 20 claims under United States patent number 8,111,017 for its Circuits and Methods for LED Free Dimming(TM) control. Free Dimming is O2Micro's dimming technology built into a LED light source. It allows the end-user to toggle dimming control using a standard on/off wall switch....

CIVILIGHT Shenzhen Semiconductor Lighting Co., Ltd defended China patent on April 19, the 2nd day of 2012 ‘Light + Building’ Frankfurt trade fair, Frankfurt, Germany, Europe. CIVILIGHT has adhered its enterprise value, “To be a respected corporation, and enhance human lighting with technologies”, to be a responsible company with highly customers recommendation since its establishment. Independent research and development is always CIVILIGHT’s motivation. As a result, more than 200 national or international patents ha...

Maxim Integrated Products will attend Lightfair International 2012 in Las Vegas, Nevada, May 9 to 11, 2012, and will debut a new reference design that is a complete solution for the control and power measurement of two outdoor luminaires. Lightfair International is the world’s largest annual architectural and commercial lighting tradeshow and conference. Maxim will also demonstrate integrated circuit (IC) solutions for optical sensing, LED drivers/controllers, and powerline communications (PLC). Maxim Demonstrations Will Showcase ·  &nbs...

Sensor Electronic Technology, Inc (SETi) has made a breakthrough on efficiencies of ultraviolet light (UV) LEDs operating in the germicidal UV-C range. Generally, the UV-C range peaks at around 254nm although the latest LEDs developed by SETi have been designed to emit at 278nm. Under the DARPA Compact Mid-Ultraviolet Technology (CMUVT) program and performed in collaboration with Army Research Laboratories (ARL), the firm's latest devices have an external quantum efficiency of 11% with a corresponding wall-plug efficiency of 8%. This l...

A provider of LED grow lights Valoya recently has made an experiment to study the effects of LED lighting and High Pressure Sodium (HPS) lighting on the growth of Saintpaulia flowers. According the experiment, saintpaulia cultivated in greenhouses under traditional High Pressure Sodium lighting, have shown decrease of flower quality in the winter months when HPS lights are the dominant form of lighting. The decreased quality can be seen as pale color of flowers and uneven quality of the crop. In contrast , Valoya cultivated two varieties of Saintpaulia during ...

Luminus Devices has announced to release a family of round LEDs that will accelerate the adoption of solid-state technology by displacing conventional light sources in high brightness lighting applications. And the first round LED product will be commercially available in Q3 this year. Don McDaniel, Global Marketing Director for Entertainment Lighting at Luminus,said "Our new round LED increases system-level efficiency by as much as 30%, enabling our customers to use a single LED to replace a 250W HID lamp." Luminus' round LED technology ...

Taiwan's National Central University’s scientists have utilized a new packaging technology that addresses the color variations of LED lighting for indoor use. According to Lee Cheng-chung, dean of the university's College of Science, in spite of its high performance, long life and low pollution, LED lighting is mostly used outdoors rather than indoors because its color variations may be visually uncomfortable. And Sun Ching-cherng, director of the university's Department of Optics and Photonics, pointed out that LED lighting can produce light o...

Standards-based suite of WiFi-enabled products for nLiGHT devices expands applications, further simplifies installation and reduces hardware costs.     Acuity Brands, Inc., (NYSE: AYI; “Company”), a market leader in innovative energy-efficient lighting and control solutions, is pleased to announce the addition of wireless capabilities to its award-winning nLiGHT® network lighting control technology. The nWiFi™ solution from Sensor Switch® uses existing WiFi network infrastructure to further simplify control installation ...

Sports + Orthopedic Leaders (SOL) Physical Therapy, Oakland, Calif, has found a new discovery in treating patients with LED light therapy.   The practices treat patients with the APLightsource 2000 from A Perfect Light, Del Mar, Calif, a non-invasive treatment program designed to use red and infrared LEDs to stimulate cell growth and blood flow.   The device is made with 2,000 LED lights mounted on flexible pads in order to deliver multiple frequencies of the light into the injured area; mitochondria of the cells is stimulated by these frequencies ...

Bridgelux has developed new Bridgelux(R) Micro SM4(TM) surface mountable LED component for commercial buildings. The Micro SM4 is a light source, analogous to the heated gases or hot wires found in fluorescent bulbs and incandescent lights. The difference comes in energy consumption, longevity and control. The Micro SM4 light source consumes only 4.2 watts, but it emits as much light as a 20-40 watt incandescent or 20-35 watt halogen B10-style bulb and will last thousands of hours longer. The Micro SM4 component also delivers high flux density in a smaller footpri...

Lately, NEC has brought the old Bluetooth speaker idea into the design of LED ceiling light. According to the company, the users connect their phone to the light via Bluetooth and an Android application, which then lets them control the music as well as the light. And they can also create effects by synchronizing light and sound. Light fittings are in the middle of rooms. Then this system enables light and sound to spread from the center of a room to the entire space. It also enables the user to control the effects with a smartphone. Currently, it’s just a con...

AIXTRON Opens Training and Demonstration Laboratory in Suzhou A ceremony was held today to mark the opening of AIXTRON SE’s (FSE: AIXA; NASDAQ: AIXG) new training and demonstration center at SINANO - the Suzhou Institute for Nanotechnology and Nanobionics. A representative of the National Development and Reform Commission (NDRC), the German Consul General in China, many of AIXTRON's key customers and numerous partners from leading universities and research institutes from across Greater China took part in ...

Lumenpulse Wins International Seal of Quality for Outstanding Industrial Design Lumenpulse Inc., a leading innovator and manufacturer of high performance, architectural LED-based lighting solutions for commercial, institutional, and urban environments, today announced that it won a prestigious red dot award for its high-performance projector, the Lumenbeam LBX. The competition is hotly contested by manufacturers from all fields of industrial design including makers of cars, computers and furniture. Lumenpulse's Lumenbeam LBX was selected by a 30-member exper...

A Japanese research group led by Chihaya Adachi and Kenichi Goushi, professors at the Center for Organic Photonics and Electronics Research (OPERA) of Kyushu University, has developed a high-efficiency phosphorescent OLED device without using any rare metal. It has an external quantum efficiency of higher than 5%, as one of the highest in the world for phosphorescent OLED devices that do not contain any rare metal.   Because phosphorescent materials can realize an internal quantum efficiency of 100%, they are popular in being using in high-efficiency OL...

Newly, Plansee High Performance Materials has utilized Mo-Cu R670 to develop a new molybdenum-copper composite material for semiconductor wafer substrates. With Mo-Cu R670, the new material has optimised heat dissipation in LED chips, as well as the same coefficient of thermal expansion as sapphire, and therefore reduces defects in the semiconductor structure which can occur during the hot bonding process. Commonly, the production of blue spectrum chips- including white LEDs - GaN-based semiconductor layers are grown on sapphire substrate (Al2O3) using epitaxial ...

Dutch based company PlantLab has utilized a purple/pink light, made of red and blue LED lights for growing indoors ,which marking the ability to grow crop with 90% less water than is currently used. Currently, the Middle East and Africa have faced most pressure in manage water supplies due to water shortages. And PlantLab has invented a way to grow plants under LED lights indoors, with all the water recycled within the indoor environment for reuse to solve the problem. According to the company, plants are not that dependent on using the sun for photosynthesis. And they ...

Lately, SemiLEDs has made a breakthrough on its latest ultraviolet LED chips which are capable of emitting radiation at a wavelength of 390-420 nm with 40% external quantum efficiencies (EQEs). The EQE is an LED’s ability to convert electrons into photons. The devices have been tested at 350 mA  and up to an output power of 500 mW and a typical 3.3V forward voltage. The exact output power depends on the wavelength. The present SemiLEDs UV LED products are available in wavelengths ranging from 365nm-420nm, in chip sizes of 1.07 mm x 1.07 mm an...

Verticle, Inc. is to start mass production of a hexagonal-shaped "Honeycomb" LED chip. The chip will be showcased and available for sale at LED China 2012 between 20 and 23 Feb 2012 in Guangzhou. According to Mike (M.C.) Yoo, Verticle's CEO," This vertically structured LED chip features significant benefits that include higher light extraction and amore uniform beam profile than conventional square or rectangular LED chips based on sapphire or silicon substrates." Firstly, Honeycomb delivers an improvement in diode performance when...

Japanese Kyushu Sangyo University’s professor Taro Ochiai has developed LED traffic lights which can be seen by colour-blind drivers. Prof Ochiai starts to study LED application in 2003, when they first began to be used in traffic lights in preference to regular light bulbs. Sources has shown that colour-blindness affects around 8 per cent of males and 0.5 per cent of females, with most people with the condition experiencing problems differentiating between red and green. As a result , Colour-blind drivers reported that the LED signals were more difficult for the...

STMicroelectronics has developed a new chip to boost light output from LED-based flashes available in smartphone cameras. Professional cameras use a xenon strobe light to produce a brief burst -- or flash -- of light, but the lighting on smartphone cameras is typically provided by an LED. The light output of a battery-powered LED is continuous, and much lower in intensity than a flash, leading to longer exposure times and darker, blurrier pictures. But ST hopes to change that with its new STCF04 multifunction chip, which it says can control flash power up to 40W, ...

SemiLEDs Corporation (NASDAQ: LEDS), a leading developer and manufacturer of LED chips and LED components, today announced that its UV LED chips are capable of emitting radiation at a wavelength of 390-420 nm with 40% external quantum efficiencies (EQE – a LED’s ability to convert electrons into photons) at 350 mA (up to 500 mW output power*, typical 3.3V forward voltage). “Our patented structure and metal alloy substrate allow us to produce and supply to the industrial curing market UV LEDs that are capable of operating at high c...

Recently, NetLED system developed by Tokyo-based lighting tech startup Net LED Technology Corp. will go on sale in Japan on February 20,marking Japan gets the world’s first cloud-based LED lighting system. The 40W lights of 40,000-hour lifespan come with built-in Wi-Fi: users can control each tube over the web after installing the NetLed app on a smartphone, tablet, or computer. It’s possible to dim the lights and to turn them on or off. Users can control individual, multiple, or a set of lights (which can be located in separate rooms) via the app,...