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Hot debut in even hotter market: Oree's LED-based planar lighting

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patrick.mannion
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re: Hot debut in even hotter market: Oree's LED-based planar lighting
patrick.mannion   8/14/2010 1:41:34 AM
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The combination of stable technologies repackaged in an innovative fashion to solve a real-world problem in a hot market is hard to ignore. Add to that the backing of on of the world's largest suppliers to that market and it seems Oree and its planar lighting technology would seem to have a good future. What do you think?

jg_
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re: Hot debut in even hotter market: Oree's LED-based planar lighting
jg_   8/14/2010 4:41:45 AM
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100 lm/W (on the light guide) is a little hard to decode, but note that Cree recently claimed 208 lm/W for a single LED. http://www.cree.com/press/press_detail.asp?i=1265232091259 This pushes LEDs well ahead of fluorescents.

Iain Kyle
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Iain Kyle   1/19/2011 5:00:40 PM
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Absorption within the light guide mean that any "light guide system" lm/Watt figure is going to be less than the LED source. Keeping optical path lengths short, Coupling of light from the LED into the light guide and re-cycling any light that would otherwise escape from the wrong part of the light guide are all important. Maintaining efficiency and uniformity over larger light guides becomes exponentially more difficult!

kdboyce
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re: Hot debut in even hotter market: Oree's LED-based planar lighting
kdboyce   8/14/2010 5:35:11 AM
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This Lightcell technology is really very interesting. However, I would like to have further information about the possible bigger sizes of these panels. It is clear that multiple LED's could be placed anywhere along the panel provided the optics for spreading and keeping the light uniform could be maintained per LED group, as well as the thermal management of the whole panel. How much "interference" would there be between 2 or more groups of LED's? There is no info on the Oree site about the driver complexity, although the video Patrick refers to indicates simple drive electronics. Still it would be nice to know now. There is additional info at: http://www2.electronicproducts.com/Fundamentals_of_LED_planar_lighting-article-farc_oree_may2010-html.aspx But the questions still remain. Anyone know how well Oree is positioned to do the manufacturing, or will they have to outsource somewhere?

info@Oree
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re: Hot debut in even hotter market: Oree's LED-based planar lighting
info@Oree   8/16/2010 9:50:50 AM
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The LightCell products extracts a uniform light from a panel that is 50x50 mm. Building large surfaces is done in a modular approach, placing several LightCells together to create a large panel of any size. The LightCell is designed to maintain the uniformity between all LightCells in the fixture and create a large and uniform lighting surface. Our unique on-board sensing mechanism will assure that this uniformity will be preserved through changes in temperature and over time. The electrical interface is indeed simple and can be operated by standard drivers available in the market.

_hm
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re: Hot debut in even hotter market: Oree's LED-based planar lighting
_hm   8/14/2010 1:28:41 PM
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LED light source looks to be very promising future. I hope the light they emit is good to our children’s eye and do not have any other short or long term side effects. I suggest there should be some standards, certifications, approval authorities and vendors should mark their products accordingly. I may like to introduce few embedded intelligence to this optoelectronic device. At many places in office, mall and home we can have considerable savings of energy by automating on/off control of this LED lamps. Can vendor introduce motion detection and possibly ambient light sensors along with semiconductor switch to these lamps? This will automate switching of lamp and saves energy. Also, is it possible to have these LED lamps with tiny embedded CCD camera and power-line or wireless Ethernet communications to help in introducing security features to places without any additional installation expenses? The communication can further automate the switching and also control variable output intensity. The total cost of lamp should not exceed $5 each.

UdaraW
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re: Hot debut in even hotter market: Oree's LED-based planar lighting
UdaraW   8/14/2010 9:05:13 PM
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Yes, I do agree with “hm” over there on the safety concerns. While I appreciate the Oree Inc. for bringing out to marketplace an efficient technology and for being a remarkable new venture that it is, I can not under-emphasize the importance the requirement of some kind of standardization framework for LED-based lighting. LED-based light products is a hot market, and players emerge with interesting innovations in an economic sense. However, on an eye-safety standpoint, all these innovators might not measure up adequately. For an example, most LED-based light sources used in advertising industry, seems to have little care for the safety of the eyes of the by-standers, while they aim for visibility and clarity at audiences at longer range. Further, even some of the domestic light products aimed to produce ‘warm-white’ seems to have poor control of the emitting angle of the light. These are some of the issues I have observed about LED-based products. Now that LED-lighting industry has been around for few years and gaining strength, it is good time that a global standardization organization steps up. Control over the emission angle, uniformity of the optical-energy distribution, intensity levels suitable for each application areas (i.e., domestic/industrial, advertising: hoarding-height from nearest by-stander, hoarding distance from the nearest by-stander) are some of the parameters and standardization organization must look into. At the present moment, LED-based domestic-lighting industry has not been around for long enough for an extensive study of the long-term eye-safety issues of LED based domestic lighting to be given consideration. However, if we ignore these health concerns now, when the actual health-effects surface in a decade or so on from now, we would be too late to remedy the damage done. Therefore, in my view, it is high time that an industry-wide standardization of optical sources on a health stand-point is given thorough thought.

GREATTerry
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re: Hot debut in even hotter market: Oree's LED-based planar lighting
GREATTerry   8/16/2010 6:33:46 AM
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Agree with the health concern that LED industry has brought along. We need some more medical advice especially it is not difficult for LED/semiconductor to emit "unseen" radiation. A well controlled LED manufacturing standard should also imposed so that no harmful emission can be found. Anyway, LED is still a very promising technology that people can enjoy the benefit of better energy efficient at the end of the day.

goafrit
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re: Hot debut in even hotter market: Oree's LED-based planar lighting
goafrit   8/16/2010 11:45:32 AM
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Interesting article on what new innovative startups can do to the industry. The reality is that when the startup industry is healthy, the nation is better off. However, this industry does not have any standard benchmark. We need to develop one so that we can handle the health and environmental issues associated with LED. This is important as new innovations are expected to flood the market as we transition from lab to market.

LarryM99
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re: Hot debut in even hotter market: Oree's LED-based planar lighting
LarryM99   8/16/2010 4:29:08 PM
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This has the potential to be a real shift in the way that lighting is used. I am curious if the lighting designer community is aware of this and what they think of it. Uniform lighting from a surface would do very strange things to shadows, for example. This is the kind of change may take some time for people to get comfortable with. On the other hand, put it in the hands of a designer that can do interesting things with it and it could take off very quickly. Larry M.

Bob Lacovara
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re: Hot debut in even hotter market: Oree's LED-based planar lighting
Bob Lacovara   8/16/2010 4:49:07 PM
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A) Somebody tell me about the "unseen" radiation that one would get from an LED or LED/phosphor system. These things are so useful that if they gave off UV A they'd still have a use. Of course, I don't want to sit at home reading with sunglasses on. ;-) B) Oree: make some with polarizers in the upper layer. Large sheets of light are great for product photography, and better still, polarized light give the photographer some interesting options. At the moment, I have to buy 17" wide sheets of polarizing film. Sure, not the largest market, but...

Peter Aleff
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re: Hot debut in even hotter market: Oree's LED-based planar lighting
Peter Aleff   8/20/2010 8:49:08 PM
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It is encouraging to see how many of the commenters here are concerned about the safety of the light emitted by LEDs. This is particularly important for young eyes because our lenses become yellowish only as they age. They let through most of the most damaging wavelengths in the "blue-light-hazard" region until our late teens or early twenties. Virtually all fluorescent lamps emit their strongest radiation spike at 435.8 nanometers which is in the blue-violet region and right in the middle of the wavelength region between 430 and 440 nm which the U.S. Occupational Safety Guidelines have determined to cause the most damage in all mammalian eyes. For a discussion of these risks, see "Is fluorescent light safe for children's eyes?" at http://retinopathyofprematurity.org/maculardegeneration.htm. These dangers have been widely ignored for fluorescent lamps, but the concerns raised here about the safety of light from LEDs justify the hope that this dismal blindness to the blinding potential of fluorescent light will not carry over into the evaluation of LEDs where the offencing wavelengths may be easier to avoid.

patrick.mannion
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re: Hot debut in even hotter market: Oree's LED-based planar lighting
patrick.mannion   8/21/2010 4:46:25 PM
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From the market opportunity for Oree's planar technology to the potential dangers of LED lighting, the feedback here has been fantastic, thanks guys. I'm moderating an Ask The Experts virtual panel (go to www.eetimes.com/lighting) this coming Thursday (August 26th.). The focus is on LED selection, design and implementation challenges and solutions, and the panelists will be experts from Digi-Key, who deal with these issues every day and are primed and ready to answer all these questions, and more. Thanks to the feedback here, I'll be adding LED safety and the potential for planar lighting and other emerging technologies, to the list of up-front questions. If you have more, let me know here, or better again, log in this Thursday to the panel and them there, first hand. 'See' you there!

lifewingmate
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re: Hot debut in even hotter market: Oree's LED-based planar lighting
lifewingmate   8/31/2010 6:13:57 AM
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I wonder how Oree's products, especially LightCell, will catch on in the green energy market. This is fantastic technological advancement. Congratulations to your team! Do you partner with Cree? My colleague who works at a similar company tells me the following..."Cree, is a medium-size company that is quickly expanding with the green energy boom. Last quarter the company hit 3/4 billion dollar revenue mark and is well on its way to be the leader in the LED industry, that is estimated to grow 5 fold in the next 5 years. Cree manufactures 40% of the public lights in Las Angelos, 100% of the public lights in Alaska, and 80% of the lights in North Carolina. In addition Cree's LED lighting was used to light the Olympic Cube in the Beijing 2008 Olympics. That displayed alone used 440,000 of our lights!"

twk
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re: Hot debut in even hotter market: Oree's LED-based planar lighting
twk   9/8/2010 9:53:53 PM
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I recently completed a home shop building and illuminated it with 26 two tube T8 fluorescent fixtures. These were chosen based primarily on cost. They cost me less than $30 each including lamps. I note that Cree is selling where the initial cost is not a problem both because of extremely high maintenance cost as well as relative insensitivity to cost in the overall sense. I see no comment here about the cost of this approach. I would love to install this or some other LED based illumination and am capable of even building the fixtures if industry has not yet done so. Thus far I have not discovered ANY LED approach (either fixtures or parts)that comes closer than about ten times the basic fluorescent. I think you folks have a very long way to go to begin to displace long standing illumination types but I cheer you on with enthusiasm while you get your market from those with big pockets hoping someone finally brings the cost in range for plain old folks.

Bob Lacovara
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re: Hot debut in even hotter market: Oree's LED-based planar lighting
Bob Lacovara   9/9/2010 12:20:27 PM
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twk's comment is quite appropriate. LED lighting is pretty expensive right now. I built something vaguely similar to twk's project, and I suspect that we made similar cost projections. I do some photography of costume jewelry: I wanted large, uniform lighting fixtures. LEDs are fabulous: easy to control brightness, and to control the change in brightness across the 17" by 24" fixture; color can be modified, runs (relatively) cool. But the final design consisted of 3 dual tube 24" fixtures with T12 bulbs. Several color temperatures are available, and there was no other way to get the intensity levels that I wanted at a cost I could afford. LEDs are on my menu, but I have to wait until they are far less expensive. That time is coming, I suspect.

agk
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re: Hot debut in even hotter market: Oree's LED-based planar lighting
agk   12/26/2010 11:49:45 AM
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Light cell technology mentioned here uses 50 mm by 50 mm panels. For larger sizes multiple panels need to be used where as with organic led technology larger size panels are available.

ReneCardenas
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re: Hot debut in even hotter market: Oree's LED-based planar lighting
ReneCardenas   5/31/2011 11:54:58 PM
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But what about tunable color light sources?, is that still in the horizon that LED lighting fixtures may be able to tune room lighting according to user preference?

takenmark
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re: Hot debut in even hotter market: Oree's LED-based planar lighting
takenmark   4/7/2013 9:18:27 AM
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Yeah,i can not agree with you any more about I’d spend a few minutes with a startup claiming to have the next big thing in LED lighting. I really impressed by your post. http://www.safeffxivgil.com| http://www.gw2.us

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