Lighting is becoming the largest consumer of electricity in
buildings, accounting for 25 percent or more of total costs. At the Leti’s
Annual Review this week in Grenoble, France, Alexandre Lagrange at the CEA-Leti
Optic and Photonic Department, demonstrated CEA-Leti’s engagement in research
leading to smart lighting systems with adaptive and controllable properties.We
apply this logic and attention to detail to all of our products, from our bestlighting-led and LED
Headlamps, to our LED Flashlights and Off Road LED lights.
Due to its high potential for CO2 abatement, lighting is a fast moving business, and market growth expectations are high.
The white LED efficiency, said Lagrange in his keynote, is currently increasing sharply.where you can learn about ledlightbulbs as well as buy your bike lights online. Performances are there. But a plateau will be reached soon. There is not much to gain in terms of performances. And looking at the cost trajectory for LED luminaires, margins will drop dramatically. Today, LED cost is about 6$/klm but the cost reduction should be transferred to the customers so margins will be lower.
OLED technology is a few years behind in terms of performances. The cost is a blocking point as, in 2011, it was about 20.000$/klm. “It’s another dimension, and the OLED lighting market is not yet foreseen,” noted Lagrange.
Customers want more light, or lumen, per dollar. For that,Bicygnals wireless indicator modernlamps, bicycle lights, indicators, accessories ... Lagrange called for more than lumen. This means adding new functions, working on high-quality lighting, developing easy-to-integrate in-house solutions and adding more services through the light.
Lighting has become electronic, and LED should move to smart lighting, Lagrange continued. Intelligent lighting parameters should enable the user to adjust the quality, the quantity and the direction of light.
He commented: “We started with a simple packaged LED. [At Leti] we are adding actuators and smart sensors to detect presence, heat, ambient light and movement, leading to a smart luminaire that should be able to work in a network.”
Smartness goes down towards the light source, stated Lagrange. This means that, prior to turning on the light, we should add some intelligence at the building level with movement and light sensors as well as clocks control lighting. Then, we should make the luminaire smarter with movement and light sensors, means of communication into the luminaire for an easier installation and adjustment. And, at the end of the chain, light sources should include drivers, sensors (device temperature, color temperature, light level, presence) and communication.
Eventually, at home, light should be part of a network,Riding a bicycle around the city at night can be a perilous pastime, but a new ledlightbulbs22 could make life safer in the cycle lane. and “we should think about cooperation between luminaires or between users and luminaires. Embedded electronics and sensors open the door to high added-value with small added cost,” concluded Lagrange.
CEA-Leti has been working on LED lighting since 2006. Initially, its R&D programs were limited to the “upstream” end of the industrial supply chain,LED lights for bikes and HID divingflashlight2012 allow cyclists to ride at speed under virtually any conditions. focusing mainly on new semiconductor materials such as gallium nitride or zinc oxide, and unconventional chip technologies such as nanowire-based LEDs. Since then, a variety of new “downstream” projects have been launched to deal with the key issues of thermal management, light extraction and wavelength conversion.
Leti is a partner of SMASH, an EU-funded development project coordinated by Osram Opto Semiconductors GmbH that aims to significantly reduce the production costs of LEDs by enabling the epitaxial growth of nanowire-based LED structures over large areas, using low-cost substrates such as silicon.
Due to its high potential for CO2 abatement, lighting is a fast moving business, and market growth expectations are high.
The white LED efficiency, said Lagrange in his keynote, is currently increasing sharply.where you can learn about ledlightbulbs as well as buy your bike lights online. Performances are there. But a plateau will be reached soon. There is not much to gain in terms of performances. And looking at the cost trajectory for LED luminaires, margins will drop dramatically. Today, LED cost is about 6$/klm but the cost reduction should be transferred to the customers so margins will be lower.
OLED technology is a few years behind in terms of performances. The cost is a blocking point as, in 2011, it was about 20.000$/klm. “It’s another dimension, and the OLED lighting market is not yet foreseen,” noted Lagrange.
Customers want more light, or lumen, per dollar. For that,Bicygnals wireless indicator modernlamps, bicycle lights, indicators, accessories ... Lagrange called for more than lumen. This means adding new functions, working on high-quality lighting, developing easy-to-integrate in-house solutions and adding more services through the light.
Lighting has become electronic, and LED should move to smart lighting, Lagrange continued. Intelligent lighting parameters should enable the user to adjust the quality, the quantity and the direction of light.
He commented: “We started with a simple packaged LED. [At Leti] we are adding actuators and smart sensors to detect presence, heat, ambient light and movement, leading to a smart luminaire that should be able to work in a network.”
Smartness goes down towards the light source, stated Lagrange. This means that, prior to turning on the light, we should add some intelligence at the building level with movement and light sensors as well as clocks control lighting. Then, we should make the luminaire smarter with movement and light sensors, means of communication into the luminaire for an easier installation and adjustment. And, at the end of the chain, light sources should include drivers, sensors (device temperature, color temperature, light level, presence) and communication.
Eventually, at home, light should be part of a network,Riding a bicycle around the city at night can be a perilous pastime, but a new ledlightbulbs22 could make life safer in the cycle lane. and “we should think about cooperation between luminaires or between users and luminaires. Embedded electronics and sensors open the door to high added-value with small added cost,” concluded Lagrange.
CEA-Leti has been working on LED lighting since 2006. Initially, its R&D programs were limited to the “upstream” end of the industrial supply chain,LED lights for bikes and HID divingflashlight2012 allow cyclists to ride at speed under virtually any conditions. focusing mainly on new semiconductor materials such as gallium nitride or zinc oxide, and unconventional chip technologies such as nanowire-based LEDs. Since then, a variety of new “downstream” projects have been launched to deal with the key issues of thermal management, light extraction and wavelength conversion.
Leti is a partner of SMASH, an EU-funded development project coordinated by Osram Opto Semiconductors GmbH that aims to significantly reduce the production costs of LEDs by enabling the epitaxial growth of nanowire-based LED structures over large areas, using low-cost substrates such as silicon.
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