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Editorial:
Where are the LEDs?
... Our news editor, Scott McMahan, evaluates what's actually available to the general public in LED-based residential lighting these days, and reports his findings in this guest editorial. JMcD In my recent attempt to see how widespread LEDs for general lighting have actually penetrated the marketplace at this stage of...
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Permlight Posts Record Sales for LED-based Residential Lighting LIGHTimes StaffJuly 5, 2006...Permlight Products, an LED company located in Tustin, California USA, announced
that it has achieved record sales of its residential lighting products. The
company sites California’s Title 24 energy regulations, high energy prices,
and new environmental laws such as California’s Title 22 which bans certain
toxic substances in products as the reasons for the rise in sales. The company’s
revenues from residential lighting skyrocketed from 2 percent in the first quarter
to over 15 percent in the second quarter of 2006. Permlight says its LED can
sales have gone up more than 1000 percent for its 4-inch and 6-inch recessed
LED cans. The company also sites its voltage dimming device and its title 24
compliant white LEDs for the revenue improvement.
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IEA Publishes Report Outlining Benefits of Efficient Lighting Worldwide LIGHTimes StaffJune 30, 2006...The International Energy Agency (IEA) on
June 29, published an important study detailing the worldwide benefits of energy
efficient lighting technology. The publication introduced
in Paris entitled, “Light’s Labour’s Lost: Policies for Energy–efficient
Lighting” is the IEA’s response to the G8 Gleneagles Plan of Action
(July 2005). “This important work shows that the potential for energy
savings in lighting is simply enormous and can be achieved with technologies
that not only are readily available in the market but economically-competitive
during the life cycle of the product. Moreover, more efficient lighting also
results in lower CO2 emissions," said
Claude Mandil, Executive Director of the IEA.
“Without rapid action the amount of energy used for lighting will
be 80% higher in 2030 than today; however, if we simply make better use of today’s
efficient lighting technologies and techniques, global lighting energy demand
need be no greater at that time." He added, “In the current
lighting environment there are enormous sources of waste. Light is routinely
supplied to spaces where no one is present. Over-lighting occurs frequently
and there are vast differences in the efficiency of competing lighting sources
and in the way systems are designed to deliver light to where it is needed.
While the problem is global, we have the means to address this waste now.”
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Companies Scramble to Beat ROHS July 1st Deadline CompoundSemi News StaffJune 28, 2006...Optical component maker, Bookham and LED color control pioneer, Color Kinetics, have both announced that they are now fully ROHS compliant.
The ROHS directive (similar to California’s Title 22) bans the use of
certain hazardous substances, including lead, mercury, cadmium, hexavalent chromium,
polybrominated biphenyls (PBB) and polybrominated diphenyl ethers (PBDE), in
electrical and electronic equipment sold into Europe from July 1, 2006. An independent
audit by the British Standards Institute (BSi) confirmed that Bookham has reached
ROHS compliance ahead of the legal deadline of July 1, 2006. Bookham
News Release, Color
Kinetics News Release. These two companies will not likely be the only last
minute ROHS compliance confirmations from companies in the compound semiconductor and solid state lighting
fields.
US Residential Lighting Maker Settles Patent Dispute With Nichia LIGHTimes StaffJune 29, 2006...Nichia of Japan announced on its web site that it has resolved a patent dispute
with its former customer Intermatic Inc.,
a large US-based lighting manufacturer (not to be confused with LED phosphor
specialist Intematix). Nichia said that
Intermatic, which markets and manufactures conventional residential lighting
in addition to LED products in the United States, Canada, Mexico, China, and
the Netherlands, has agreed to enter into a business arrangement. Details regarding
that arrangement have not been disclosed by either party. Nichia originally
filed the patent lawsuit against residential lighting manufacturer, Intermatic,
on January 24, 2006. The lawsuit alleged that certain of Intermatic’s
LED products (such as LZ21813KA) infringed on Nichia’s key white LED patent,
US patent 5,998,925.
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Philips Lumileds Boasts Performance Records LIGHTimes StaffJune 29, 2006...
Philips Lumileds announced the acheivement of several LED performance records
at 1 Amp. The performance records the company claimed include: luminence of
38 mega nits (Mcd/m2) for white devices. The
company says this is about 60 percent more luminance than automotive halogen
bulbs (about 25 mega nits) achieve. In blue indium gallium nitride (InGaN) devices,
Lumileds boasted a radiance of 200 mW/m2. Then
in green InGaN the company claimed a luminence of 37 mega nits (Mcd/m2).The
company anticipates that their LEDs will go into the brightest LED-based RPTV
that has ever been publicly demonstrated. Lumileds says their advances will
allow increased display size, superior contrast, and color uniformity. Lumileds
hopes to also put the technology to use in automotive headlamps which currently
use halogen bulbs. The company points to additional possible applications such
as aircraft, roadway, and general lighting. Company
News Release Osram Introduces Light Sensor With “Human Eye” Sensitivity LIGHTimes StaffJune 27, 2006...Osram Opto Semiconductors has introduced an ambient light sensor for mobile
phone applications. Osram says it imitates the sensitivity curve of the “human
eye” and therefore allows a more precise adjustment of brightness range
for mobile handset lighting. Other applications include control of lighting
in autos, cockpit, and in headlights. The ALS SFH5711 is reportedly an enchanced
LEDChip version of its SFH3410 used in light dimming applications. The company
says it offers surface mount technology (SMT) for savings on consumer applications.
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National Semiconductor Introduces Two LED DriversJune 27, 2006...National Semiconductor has introduced two new LED drivers that the company
refers to as lighting management units (LMUs) which include a high-volatage
boost converter and programmable constant current driver for up to 20 series-connected
LEDs in display backlights, keypad, RGB, and camera flash LEDs. According to
the company, the LP3958 and LP5526 LMUs feature micro SMD packages perfectly
suited for cell phones and handheld devices. The company says the devices drive
from two to five strings of four series-connected LEDs, depending on the lighting
application. The drivers are optimized for use in single- or dual-display phones
and large display PDA phones. Each driver includes three general-purpose input/outputs
(GPIOs) to trigger lighting functions such as Flash or to control additional
device-enable signals. The LP3958 features 70 mA of output current for powering
display backlight LEDs, and the LP5526 features 150 mA of output current for
powering display backlight and Flash LEDs. Both devices include an I2C interface.
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Commentary & Perspective...
July 5, 2006...Our news editor, Scott McMahan, evaluates what's actually available to the general public in LED-based residential lighting these days, and reports his findings in this guest editorial. JMcD In my recent attempt to see how widespread LEDs for general lighting have actually penetrated the marketplace at this stage of their rollout, I visited
all the local stores in my area in Austin, Texas where I thought I might find LED-based products. I chose: Super Wal-Mart,
HEB a grocery store chain which has expanded to include department store items, and
Loews building supply and Home Depot, two large chains devoted to products for individuals wanting
to do home projects themselves. The results were quite disappointing.
The only LEDs-based products I found were not for general lighting. They were merely
decorative lights designed to look like candles, which I found at Home Depot.
That particular store had several different LED fixtures for general lighting on their
website. However, one of their many usually knowledgeable workers, said, “I’m sorry I simply don’t know enough to help you with that.”
I continued the hunt by myself down the long isles devoted to lighting.
They sold incandescent, halogen, and fluorescent lights of most every variety,
but there was only one LED light set, which was designed to look like candles. They did
have "rope lights" that appeared to be LED-based, but upon closer inspection,
they were not.
Online, Home Depot (search for LED)
offers some LED-based lighting fixtures for outdoor lighting. There was also
a 120V LED light fixture in the form of a bulb with 35 LEDs. These were all
made by a company called Hampton
Bay which makes fans and mostly conventional lighting. To be fair, Jo Ann
reported that her local Walmart carried LED “fairy lights” last Christmas (Ref: editorial) and she recently found a set of four solar powered garden white LED "coach lights" by Brinkmann at her rural Walmart in Central Texas for about $18, but that was it. The Brinkmann product has a notice that the product was made in China and carried the notice that it was "protected by US-Pat. No US D492,437."
However, I was not able to find either LED fairy lights or coach lights at my local Super Walmart. My local Super Walmart does offer some LED-based products including personal reading lights and nightlights, and Jo Ann has also found a variety of single white LED-based reading lights for individuals reading books in bed at her local Hastings bookstore, yet another fairly large chain. In our opinion, these token entries aren't yet general lighting products, but they're a start.
While a number of companies have released LED fixtures for general lighting,
they obviously aren’t widely available to general consumers yet. What's more, I found that people still have considerably less understanding of LED lighting than the companies that sell to the public.
What those companies are selling can indeed be can be found online, however. Dozens of different fixtures,
desk lights and lamps for indoors and outdoors are available on eBay for example. One problem
is that there are often two levels of prices for the same type of items. Desk
lamps from Hong Kong start at $15.00. Similar looking desk lamps with roughtly
the same features from Philips start at about $49.00. They each include 8 bright
white LEDs. Like the other products found in stores or online, the sellers in Hong Kong don’t indicate what company manufacturers or packages the actual lamps, which begs the question of whether or not the products are patent
compliant.
Title 24 Energy efficiency standards in California, IRS tax deductions for
energy efficient commercial buildings in the USA, and the International Energy
Agency report on the worldwide benefits off efficient lighting (Ref: Coverage)
all point towards efficient use of electricity in lighting such as using LEDs. But... LED makers have only come out with a relatively small number of products for general
residential lighting. Most of what is available is obviously targeted at the high-end construction
market such as hotels, nightclubs, pricey luxury homes and high end commercial store displays. According to some industry insiders, the prices are simply beyond what most consumers can afford in initial
cost.
The market appears to have already stocked plenty of LED flashlights, battery powered desk lamps, and car
decoration and taillights, traffic signals, and sign lighting. LED-based street lights are now plentiful, and some companies have come out with
LED landscaping lights. However, the general lighting market for inside homes still has a long way to go. At this stage, solid state lighting (SSL) appears to be generally confined to niche markets. Plug-in, AC LED products
are still relatively rare and expensive. Many in the SSL industry
want change all that.
Permlight is one such company. Working in conjuction with Progress Lighting, Permlight recently released an array
of residential lighting solutions using their Embryten line of LED modules.
The jointly introduced products include many designs of pendant lights, recessed
trims, surface mounts, step lights, under cabinet lights, cove lighting, in
wall lights, and exterior sconces. The web site supplies a list of Permlight
certified design consultants to help design the right residential lighting.
TIR is another company that we regularly
cover that makes end products for general lighting applications http://www.tirsys.com/products/architectural-led.htm.
Their partners are beginning to put their lexel technology advances into products
including residential lighting. (Ref: Coverage)
OptiLed
also offers a range of AC LED-based fixtures for indoors. Some are retrofitted
bulbs with arrays of LEDs and others retrofitted for halogen fixtures. They
sell a variety of accent lighting solutions too. These are in addition to many
outdoor varieties. Optolum is reportedly selling well to high end retail stores and doing custom designs, but OptoLum's CEO, Joel Dry is keeping his cards close to his chest. He did report, however, that the market for undercounter lighting for home kitchens and for bathrooms is gaining momentum, but they're still too pricy for the general public's pocketbook. So LEDs appear to still be confined to retail and commercial spaces.
Hopefully this will change soon as prices start coming down and the products begin to be stocked by popular general hardware and lighting stores. One key to accellerating the market might be to concentrate on convincing hardware product manufacturers to include LEDs as part of their next gen hardware rather than battle with stand-alone lines. We'll keep looking. --Scott McMahan If you have questions about
the solid state lighting and compound semiconductor industries or
have
news or views to share, we want to hear from you! Feel free to contact
us anytime.

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