What We Can and What We Still Cannot Do with LEDs
... In recent years, the LED makers have raised the bar on performance of their LED chips and modules. One of the biggest changes has been in lumens per dollar. In both the high-power and mid-power LED chips and modules. Cree, Osram, and Philips have been at the forefront of... Read
the editorial... (or permalink is here)
opportunities presented by the increasing rapid adoption of high brightness LEDs,
in all their forms and applications, represents nothing short of a "digital
revolution" for a previously "analog" world. LEDs are having a
substantial disruptive effect on a number of established technologies, and where
there is disruption, there is an intense need for information.
LIGHTimes Online is here to serve the information needs of the LED industry
supply chain, as well as integrators and non-architectural application solution
providers with technology, product and market news updates for these rapidly evolving
devices. Our readership also includes LED packagers, technology enablers and service
companies seeking the the answers to how best to meet their customers' needs.
architectural lighting and applications news of interest specifically to lighting
designers, specifiers, and architectural lighting decision makers, along with
luminaire designers, lighting system integrators and lighting subsystem developers,
please visit our sister publication, Solid
State Lighting Design.
is booming and the 2011/2012 Summit Series is coming back to keep the message
Launched in 2008, the SSL
Summit will bring the quality story to New York City in October 2011, and
then back to LA in March 2012. At every one of the Summit events, the feedback
remains consistent: Just what we need, do it again soon. The Summit brings together
lighting decision makers with industry thought leaders, pioneers, and innovators
from the across the solid state lighting eco-system.
Continuing the tradition, 2011/2012 will continue
to be all about quality, quality, quality.Showcase
participants and sponsors are vetted to separate the wheat from the chaff
(have your IES LM-79 test reports ready!). Last year's event in NYC included
representatives of over 100 million square feet of developed property, and the
one thing we don't want to leave out for 2011 is you! Look into the series information
at www.SSLsummit.com for the details.
Sponsorships are available for the full series.
Leti and Luciom Focus on High-data-rate LiFi Applications LIGHTimes News Staff
September 11, 2014...Luciom, which develops visible-light communication using LEDs, and CEA-Leti
of Grenoble, France have launched a project to develop high-data-rate LiFi
transceivers. In mid-2015, Luciom plans to begin offering the first
high-data-rate bidirectional light-fidelity (LiFi) products that can work with
different LED lighting sources, and can work on various mobile devices.
Luciom notes that Visible Light Communications (VLC) has gained significant
momentum in recent years, primarily because LEDs are expected to become
predominant. Luciom goes so far as to suggest that eventually LiFi will be more
efficient and economical compared to wireless RF communications do to rapid
market penetration and reduced production costs.
LEDs can be modulated at very high frequencies. High-speed oscillations are
invisible to humans allow very high data rates of information transmission.
Earlier in 2014, Leti demonstrated a new prototype for wireless high-data-rate
Li-Fi transmission that uses LED engines in commercial lighting. Leti says that
the technology achieves throughputs of up to 10Mb/s at a range of three meters.
At this data rate, the company says it would be suitable for HD video streaming
or Internet browsing, using direct or even indirect LED lighting with a
luminous flux of under 1,000 lumens. Luciom says that the technology will be
adapted to meet the needs its transceivers.
Luciom claims that its technology allows any LED lighting source to act as a
high-speed data transmitter that is both secure and environmentally -friendly.
The technology, which uses integrated circuits and transceivers, turns LED
light sources into positioning beacons, which transmit signals that indicate
the location of the specific luminaire. The technology so far only allows one
way communication from the light source to the
Smartphones and tablets can become LiFi receivers using their camera as a
receiver. When combined with WiFi or Bluetooth in a 3.5mm audio jack Bluetooth
dongle, a LiFi application launched from a smartphone can transmit to a server.
The companies hope to go a step further than what can be done now to offer a
receiver and transmitter (transceiver) that can be connected to a smartphone
via an audio dongle.
Luciom says its technology can be combined with the use of gyro-sensors in
smartphones and tablets to predict movement between two LiFi beacons and
calculate a very accurate position of the user.
Indoors, when GPS technology does not work, communication between phones and
smart indoor LED lighting can be used, Locium says that the localization
application can provide additional personalized services or information to
customers as well as information to the infrastructure manager.
The company is targeting high-data-rate video transfer via LiFi in future
products and apps. The project between Leti and Luciom builds on their previous
collaboration in which Leti developed an optical over-the-air data link for the
company that allows the transmission of true HD video from a lamp to a handheld
"Our indoor geo-localization could guide shoppers through the maze of
large shopping malls to the stores they are seeking, and LED lighting in
museums could be used to guide visitors through an enriched tour of the
displays and exhibits," said Michel Germe, CEO of Luciom. "Working
again with Leti, we will be able to bring new, bidirectional transceivers that
enable these applications to market in 2015."
"Luciom was one of the first companies to see that LEDs and LiFi can
offer a powerful, secure and highly energy-efficient communications alternative
to WiFi," said Leti CEO Laurent Malier. "With Leti's first proof of
concept developed earlier this year and its expertise in RF communications, we
expect data-transmission rates in excess of 100Mb/s with traditional lighting
based on LED lamps."
Samsung Creating New Ultra HD TV with 300 LEDs
September 9, 2014...Samsung Electronics is creating a new Ultra HD TV equipped with a 300 LED direct-type LED backlit unit, according to a Digitimes article, which cited supply chain sources. The new TV is reportedly expected to help compete against OLED TVs in the high-end TV market. Samsung hopes the TV will help meet expected demand for Ultra HD TVs in 2015.The company plans to enhance the resolution and color quality of the TV using increased LEDs, an improved color filter, and local dimming technology.
Daktronics to Provide New HD Video Displays at the Palace of Auburn Hills LIGHTimes News Staff
September 9, 2014...The Palace of Auburn Hills, home of the Detroit Pistons, has gotten a new
high definition centerhung display system as well as ribbon and auxiliary
displays from Daktronics. Daktronics of Brookings, South Dakota, has partnered
with Palace Sports & Entertainment to provide the new display systems and
repurposed audio system for the 21,231-seat, multi-purpose arena in Auburn
Hills, Michigan. The display installation is the fourth stage of the facility's
three-year capital improvement plan.
"As a long-term partner of the Detroit Pistons and The Palace of Auburn
Hills, Daktronics is proud to be part of the vision of excellence and very
excited to be supplying the new HD video screens," said national sales
manager Will Ellerbruch."The Daktronics screens will supply a crystal clear
HD view of the game and enhance the entire game-day experience for Pistons
fans. Our control system will help immerse the fans with eye-popping video
along with the two 360-degree LED ribbon boards that will surround the fans
with unprecedented entertainment. We are very much looking forward to fall and
another great year of basketball."
The 56,000 pound custom-designed sound and video display system is scheduled
for completion by early November for the 2014-15 NBA season. The centerhung
features four convex high definition video displays along with two lower
sideline facing displays.
The rectangular centerhung system boasts two displays facing the sidelines
that each measure 24 feet high by 42 feet wide and feature 6 millimeter line
spacing. They provide 1080p HD imagery. Each of the two displays facing the
baseline measure 16 feet high by 27.5 feet wide and features 6 millimeter line
spacing to provide 720p HD imagery. The centerhung installation combines for
2,896 square feet of active display area.
Two additional video displays will be angled out from the bottom of the
centerhung setup to appeal to fans, players and coaches that are close to the
action and courtside. Each display will have 6 millimeter line spacing and will
measure about 8.5 feet high by 16 feet wide. These two displays will supplement
content shown from the main video displays.
"We are pleased to enhance the visual experience of sporting and
entertainment events at The Palace with the installation of a new high
definition video system," said Dennis Mannion, CEO of Palace Sports &
Entertainment. "Multi-million dollar renovations and technological upgrades
at The Palace support the vision of our owner Tom Gores and his commitment to
providing our fans with one of the most innovative, technologically advanced
facilities in the country."
The existing audio system will be repurposed and integrated with the video
and scoring system at The Palace. This system provides full-range sound
reproduction and delivers clear speech.
The installation also includes a fascia display measuring about 2.5 feet
high by 984 feet wide. Two end fascia displays measure about 6 feet high by 80
feet, and two ribbon displays measure about 3 feet high by 535 feet wide.
Thirty vomitory displays measuring 3.5 feet high by 4.5 feet wide are
throughout The Palace. All of the displays have 15 millimeter line spacing and
can be used to deliver statistics, additional game information, animations, and
The company will also include its Show Control system, a production
solution, which combines display control software, video processing, data
integration and playback hardware. The Show Control System can control all
video displays in the arena from a centralized control room.
Daktronics will also supply two Lapeer Road Palace marquees with 16
millimeter line spacing, each about 18.5 feet high by 25.5 feet wide. The
displays will include multiple levels of protection from the outdoor
Baku Olympic Stadium to Get New LED Super-System from Daktronics LIGHTimes News Staff
September 4, 2014...Daktronics of Brookings, South Dakota, was asked to provide Baku Olympic
Stadium in Baku, Azerbaijan, with a new LED super-system. Installation of the
system that features two HD video displays will begin around September 2014.
The system will also include new LED ribbon and pitch perimeter displays. By
2015, Baku Olympic Stadium is expected to be completed in time to host the
inaugural European Olympic Games including track and field events and the
opening and closing ceremonies. The facility will also be the new home of the
Azerbaijan national soccer team. Tekfen Construction is the primary contractor
on the project and Anel Group is the electromechanical subcontractor.
"Daktronics provided many key elements that led to their selection for
this video display project," said Javid Najafov, senior engineer for
regional and social projects delivery department of SOCAR, the State Oil
Company of Azerbaijan Republic, the company funding the project. "Simply
put, the quality they provide, the solid reference list built from their
experience in the industry, and the responsibility and responsiveness of the
company from a partnership perspective positioned them to succeed with this
Two new displays will be positioned with one at each end of the field. Each
display will measure 10.97 meters high by 19.75 meters and feature a 15HD pixel
layout with 720 pixels high by 1296 pixels wide. These displays can provide
full screen live video and instant replays, or they can be divided into
separate windows to show additional statistics, animations, graphics and
One ribbon display will be installed on the fascia of the seating area that
will feature 20 line spacing. The ribbon display will measure 1.1 meters high
by 691.65 meters wide. One pitch perimeter display will be installed around the
edge of the field featuring 10 millimeter line spacing. The pitch perimeter
display will measure 0.73 meters high by 307 meters wide.
These additional displays can supplement the content shown on the main video
displays and provide additional space to highlight event sponsors, show crowd
prompts and graphics, and inform fans about relevant game information. The
displays can be used individually or synchronized all together. They are
commonly used to highlight an exciting moment during the event or to provide
premium exposure for sponsors.
"We're extremely honored to be selected for this monumental installation
for Baku Olympic Stadium," said Ewan Prentice, Daktronics regional sales.
"These displays will provide the stadium with extra game-day excitement and
amplify the action that's taking place on the field. We're excited to see
everything installed and turned on for their first event."
ALA Treatment and Blue-violet LED Cure MRSA-Infected Skin Ulcer LIGHTimes News Staff
September 4, 2014...A group of researchers from Osaka City University reported the successful
treatment of a skin ulcer with methicillin-resistant staphylococcus aureus
(MRSA). The researchers treated the skin ulcer with the systemic administration
of natural amino acid (5-aminolevulinic acid: ALA) and a photodynamic therapy
(PDT) using LED light, according to TechOn
The researchers point out that the new treatment method does not produce
resistant bacteria. For this reason, the researchers expect it could be used as
a new treatment for bacterial infections. The group along with SBI
Pharmaceuticals Co Ltd are planning to conduct a preclinical test targeted at
skin ulcers infected with MRSA.
Bacteria has emerged in recent years that is resistant to antibacterial
drugs, and MRSA is one example of resistant bacteria. Skin ulcers infected with
MRSA are more difficult to cure. In some cases, MRSA prevents a wound from
healing and causes death. The researcher point out that even MRSA resistant to
vancomycin, which is effective in the treatment of MRSA, has already emerged.
For these types of infections, treatments are needed that do not rely on anti
In a study, the research group formed skin ulcers infected with MRSA on the
back of a mouse. Then, they systemically administered ALA that makes
photosensitive and applied PDT using a blue-violet LED light source with a
wavelength of 410nm to them. PDT generates reactive oxygen when light with a
specific wavelength is applied. After concentrating photo-sensitive substances
on the target tissues, and applying the specific wavelength of light, PDT
annihilates target cells (bacteria). It does not develop resistant bacteria.
From the treatment MRSA was sterilized, and the skin ulcers were able to
heal in a way that was equivalent to that of ulcers that are not infected with
MRSA. The group proved that PDT using ALA can be a new method for the treatment
of MRSA infections. The results of the research was published on the US online
Company Raises Money with Kickstarter Sell DIY Ambilight for Computer Monitors LIGHTimes News Staff
September 2, 2014...Inovatek Electronics Ltd. is attempting to raise money to manufacture and
sell AmbiLED HD through Kickstarter.com.
The company claims that AmbiLED HD is the first high resolution ambient light
conversion kit for computer monitors. Inovatek asserts that the system easy to
apply and open-source. Inovatek Electronics started out designing the system as
a fun, open source project. However, the AmbiLED prototype generated so much
interest that the company decided to offer it as a commercial product if they
could raise enough money through Kickstarter.com The company hopes to raise
£33,000 by September 30.
The company says that while other DIY ambient light systems exist, they use
only between 3 and 30 LEDs and require a lot of cables between the LEDs and the
controller to control the three-pin RGB LEDs. However, Inovatek's individually
addressable WS2812B 16 million colours RGB LEDs, do not need complex cabling
and connections. In a demonstration video, the company applied a 290cm long
strip with 172 LEDs to the back of its test monitor. Uniquely, the monitor with
ambiLED HD has is no cabling or construction behind it.
AmbiLED HD can reportedly control up to 512 LEDs(8.5 meters) with just a 3
pin connection. It works as a single self-adhesive LED strip without any extra
cabling. The strip can be connected to the back of your display with just a 3
pin connector plugged into the AmbiLED HD controller. The controller is powered
through an AC adapter (included) or USB port of your PC.
AmbiLED HD paints the background with the nearest colour in order to improve
your visual experience. Despite a 120° visual field, only about 6% of the
visual area appears clear and sharp at a time. However, you can sense the
entire 120° area including the frame around a computer monitor and background
around it. The company says at first that the AmbiLED HD can be startling when
for example a car moves very fast to the edge of the screen or at light saber
blast effect goes beyond the screen's boundaries. However, viewers learn and
adjust to the screen limits, and eventually become immersed in the
The AmbiLED HD features open source hardware, firmware and software with an
Arduino based circuit design. The system has a flexible and bendable 12mm wide
self-adhesive RGB LED strip. The system uses 14W/m RGB LEDs, whereas only 3W/m
is enough for AmbiLED HD. It comes with a 5V 3000mA wall adapter (capable of
supplying up to 5 meters of LED strip), and it is Windows compatible.
AV1 Group, Inc. Signs White Label Agreement With LED Manufacturer to Target Cannabis Sector LIGHTimes News Staff
September 2, 2014...Investment and holding company AV1 Group, Inc. of La Jolla, California USA,
has entered into a White Label agreement for the marketing and sales of
LED-based lighting equipment rebranded as the GrowthSpectrum Line. AV1 Group
recently launched its CannaLighting Division to enter the rising cannabis
cultivation market with specialty lighting that the company designed to yield
robust plant productivity, maximize plant health, and increase potency. AV1
points out that quality lighting is vital in the Cannabis industry because the
majority of Cannabis growing operations are enclosed or indoors.
AV1's strategic partnership with the LED manufacturer, branded under the
GrowthSpectrum product line, enables entry into a fast growing market with
minimal overhead. The CannaLighting division will be targeting cannabis grow
houses nationally to deliver the GrowthSpectrum brand of LED luminaires. The
company will have their marketing brochure available online shortly.
"We are prepared to begin marketing our products to growhouses in
legalized states nationwide. Momentum is growing as we expand," stated
Bryen Beglinger, CEO of AV1 Group, Inc.
Excelitas Adds Adapter and Controller to OmniCure UV LED Curing Tools LIGHTimes News Staff
August 26, 2014...Excelitas Technologies Corp. of Mississauga, Canada, announced the expansion
of the OmniCure AC Series UV LED curing solutions. The company added the new
PLC2000 Controller and AC Optical Adapter to complement the OmniCure AC Series
of high power UV LED systems.
When connected to an OmniCure AC Series UV LED head, the OmniCure PLC2000
multipurpose external controller device helps intelligently control, monitor,
and manage the curing solution to ensure a repeatable UV process. The PLC2000
can dynamically adjust the output intensity, exposure time, and on/off
capabilities. At the same time, it can offer system information and error
The PLC2000 also supports RS232 and RS485 communications allowing multiple
UV LED heads to be connected, accessed, or controlled through a single computer
The new OmniCure AC Optical Adaptor can convert a high irradiance focused
exposure area into a larger area while maintaining exceptional illumination
uniformity. The optical adaptor is designed for use with the OmniCure AC4 and
AC7 Series UV LED systems. The AC Optical Adaptor creates evenly distributed
irradiance across output areas of 100mm x 100mm, 100mm x 150mm, 70mm x 70mm and
other custom sizes that are available upon request.
Mike Kay, director of product management, Industrial Curing at Excelitas
Technologies. "The PLC2000 and AC Optical Adaptor are product accessories
designed specifically for the OmniCure AC Series UV LED curing systems to offer
enhanced capabilities for maximum flexibility and control of their UV
The OmniCure product family of UV curing solutions will be showcased at The
Assembly Show in Rosemount, IL at the Excelitas booth #1424 from October 29-30,
2014 and at MD&M MN, Minneapolis, MN at booth #641 from October 29-30,
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