Showing posts with label high brightness LED. Show all posts
Showing posts with label high brightness LED. Show all posts

Top Ten LEDs and LED Grow Lights

Recently the LED Grow Lights market has seen a greater interest in using White HB (High Brightness) LEDS to round out and fill in gaps of spectrum that are missing within the heavily weighted red/blue fixtures that are currently available. Here is a blurb on the LED industries latest favorite white LEDs and how they are being used.

Those looking for the best LEDs to use in their lighting devices have been given a helping hand through a list compiled by one expert.

Richard Wilson, editor of ElectronicsWeekly, included brands such as Bridgelux, Cree, Enfis, Philips and Osram in his top ten.

Mr Wilson favoured the Cree LRP-38 LED for its high colour-rendering index of 92, which puts it on a par with incandescent alternatives, and the Osram Parathom Classic, reportedly the first suitable for replacing a 40W bulb.

Philips Lumileds Altilon LED bulb was also recommended for those needing automotive headlights – it is currently used by Audi for high and low beams in its R8 model and reaches more than 850 lumens.

Other mentions went to the Seoul Semiconductor Z1 LED, the Marl 742 series and the Tyco TYC06-09.

Volkswagen exhibited its new L1 concept car at the Frankfurt International Motor Show this week, which is equipped with Osrams Joule JFL2 LEDs for its front headlights.

Rapid Electronics is a leading UK supplier of LED products and optoelectronic components for industrial, educational and consumer applications.


Now fire up those trusty soldering irons and build another LED Grow Light prototype for the gipper!

Smallest 3-Watt Miniature High Brightness LEDs


Avago Technologies Announces One of the Industry’s Smallest 3-Watt Miniature High Brightness LEDs for Use in Solid-State Lighting Applications

New Competitively Priced LED Features Small Footprint, Robust Package Design, High Flux Output, and Extended Operating Life

Avago Technologies, a leading supplier of analog interface components for communications, industrial and consumer applications, today announced one of the industry’s smallest high-brightness 3-Watt LEDs for use in a wide range of solid-state lighting applications. With dimensions of 5 mm by 4 mm by 1.85 mm thick, Avago’s new compact 3-Watt (3W) ASMT-Jx3x is packaged in a small outline package (SOP) and capable of being driven to up to 700 mA to provide high flux output performance. Additionally, this compact LED emitter provides a wide viewing angle, has moisture sensitivity level-one (MSL 1) capability, and is very reliable. This competitively priced 3W LED emitter is ideal for use in lighting applications where space is constrained. Typical applications include portable lighting appliances, street lighting, architectural facade lighting, retail display lighting, backlighting and a wide range of specialty lighting applications.

Despite its compact size, the ASMT-Jx3x provides a maximum viewing angle of 165-degrees to meet the needs of designers who require good color and light output uniformity in their lighting applications. Avago’s ASMT-Jx3x is a high performance LED designed to handle high thermal and high drive currents. By delivering a high flux output of up to 160 lumens (lm) at 700 mA, this LED features a maximum allowable junction temperature of 135 degrees-C and high Electrostatic Discharge (ESD) resistance of 16 kV which makes this LED insensitive to ESD. As a result, special ESD protection equipment is not required to handle the part during installation. Moreover, this 3W LED is compatible with standard SMT reflow soldering processes and helps lower design cost while providing lighting designers with more freedom and flexibility in designing their applications.

Features

* Available in full colors. For example:Red, Red Orange, Amber, Green, Blue, Royal Blue, Cool White, Neutral White and Warm White colors
* Small footprint and low profile
* Silicone encapsulation
* Compatible with reflow soldering processes
* Electrically isolated heat sink
* Long operating life
* Energy efficient
* Low thermal resistance
* Moisture sensitivity: MSL 1
* Pb-Free and RoHS compliant

U.S. Pricing and Availability

Avago’s ASMT-Jx3x LEDs are priced at $1.84 each in 1,000 piece quantities. Samples and production quantities are available now through Avago’s direct sales channel and worldwide distribution partners. More information about Avago’s LED products can be found at www.avagotechlighting.com or www.avagotech.com

About Avago Technologies

Avago Technologies is a leading supplier of analog interface components for communications, industrial and consumer applications. By leveraging its core competencies in III-V compound and silicon semiconductor design and processing, the company provides an extensive range of analog, mixed signal and optoelectronics components and subsystems to approximately 40,000 end customers. Backed by strong customer service support, the company's products serve four diverse end markets: industrial and automotive electronics, wired infrastructure, wireless communications, and consumer and computer peripherals. Avago has a global employee presence and heritage of technical innovation dating back 40 years to its Hewlett-Packard roots.

LED 'Lighting for Tomorrow' Competition 2008

Solid State LED Lighting for TomorrowIts that time of year again for all of the DIY LED Grow Light Hobbyists to show some Lux, the official LED Lighting for Tomorrow Competition 2008 kicks off and plans on being the biggest yet, last years event attracted over 40 entries in the LED lighting category. If you fancy yourself a budding LED Grow Light specialist this could be your calling, and don't forget the fame and fortune if you win. Realize that the LED Lighting contest is mostly for general illumination which use Ultra-High Brightness (UHB) LEDs, but with a twist as this year a new "Future LED" Showcase category has been added and if an innovative technology entry for an indoor solid state LED plant light were to be received the judging panel wouldn't turn it away and your entry may even help create a new separate category for Solid State Plant Lighting in future LED Lighting Competitions.

This years Solid State Lighting (SSL) competition is organized by the U.S. Department of Energy, the American Lighting Association, and the Consortium for Energy Efficiency.

Important Dates to remember if you plan on entering:

January 17-21, 2008 - Lighting for Tomorrow 2008 Competition Launched at the Dallas Lighting Market

February 29, 2008 - Online Intent-to-submit form is due. (I recommend using the PDF version which is more complete, they ask that you only use one form of submission and both are due by the above date)

April 30, 2008 - All entries due

September 14-16, 2008 - Lighting for Tomorrow 2008 Competition Winners Announced at the American Lighting Association Annual Conference

Rules and Entrant Guides: For complete information on the LED Lighting design contest including applications, competition rules, guidelines, and sponsors visit: 2008 Lighting for Tomorrow Competition

Don't forget to take a look at the some of the photos from last years winners in the LED Lighting Fixtures (LLF) division for ideas on what the competition is doing with LEDs and Solid State Lighting.

This year the LED Lighting Fixtures (LLF) division has three (3) categories: 1) fixtures meeting the ENERGY STAR for solid-state lighting (SSL) requirements, 2) other decorative entries such as chandeliers, sconces, table lamps and portables using LEDs with device efficacy of at least 50 lm/W, and 3) the new "Future LED" category which invites luminaires using the world's highest efficiency LEDs; The “Future LED” category will require a minimum LED device efficacy of 90 lm/W, which would fit the bill nicely for an LED Grow Light entry.

LED lighting applications in the 'near term' and 'other lighting' categories include:

􀂉 Under-cabinet lighting for kitchens
􀂉 Portable desk/task light
􀂉 Recessed downlight rated for residential use
􀂉 Outdoor porch light
􀂉 Outdoor step light
􀂉 Outdoor pathway light
􀂉 Wall sconce
􀂉 Table or floor lamp
􀂉 Pendant
􀂉 Chandelier
􀂉 Vanity light
􀂉 Ceiling fan w/ light kit

But the 'Future LED Showcase' is wide open with a write-in of your choice, so what will you build next? A rotating LED grow light with LED light arms that track or sweep around for greater coverage could be one idea :)

Start up your wire-wrapping grow light engines and lets get this showcase shining!

For more information or to ask questions contact: Ruth Taylor, Pacific Northwest National Laboratory - 509-375-2389, ruth.taylor@pnl.gov

Strategies in Light Kicks Off 2008 Conference

When it comes to USA-based conferences serving the global LED industry, Strategies in Light defines the space. The consensus here is that by attending the US-based "Strategies" and the Taiwan-based Blue 2008 conference (BlueTaiwan.com) you'll have captured the business heart of the global solid state lighting, LED-lighting and LED industries. There are several good market, business, and technical conferences in the various LED producing countries and regions, including Korea, Japan, China and Europe, and any conference will draw primarily from the country where it is held, but Strategies and Blue do something different, making those two unique.

Strategies in Light
Now in its 9th year, Strategies is by far the largest LED conference, and successfully covers the breadth of the market. Established by Strategies Unlimited, which along with LEDs Magazine is part of PennWell publishing, the conference has kept pace with the growing market, both in its content and attendance. This year is projected to be another record-breaker, with up to 800 attendees and a still larger exhibition compared to last year. Strategies has grown so well and consistently primarily because it has made a quality agenda that matches the needs of today's market the priority. It's easy to throw out the buzz words and fill slots with "somebody", but there is truly an art to creating a neatly segmented, logically flowing 2-day conference that presents the most qualified speakers on the topics at hand. Strategies Unlimited's Dr. Robert Steele, a long time friend of our team, has been the guiding force in defining that agenda each year.

Bob is probably the most unassuming industry expert you will ever meet. He has a passion for the industry, and wants it to succeed for all the right reasons. Far from simply being a cheerleader, he brings an intimate knowledge of the overall LED marketplace and is willing to share what he knows, both in the form of his keynote talks, as well as any time you're fortunate enough to be able to engage him in a one-on-one conversation. His experience has been driven as a long-time analyst for the opto-electronic industry, which brought him to the compound semi materials, and subsequently into the application areas they serve. In the late 1990s, as the opto-communications technology was becoming ubiquitous, the LED technologies began to separate themselves as a market in their own right, with the timing of their potential for adoption in general purpose lighting starting to become evident to those that were participating. That opportunity wasn't lost on the team at Strategies Unlimited, and they began to add some additional focus into the LED arena. Interestingly, Jo Ann McDonald, our founding editor at CompoundSemi Online (which later added its Solid State Lighting Net/LIGHTimes arm), was enlisted for her conference and marketing expertise to help implement that new event, suggesting the name "Strategies in Light" in the process. Jo Ann and Bob's collaboration worked, and Strategies set off towards the success that you see today.

Perhaps the coolest thing about Strategies is that it has evolved in lock-step with the interests and opportunities of the industry as a whole. Always a west-coast US event, it is located almost exactly mid-way between Asia and Europe, much as the US LED-related market is. Asia has been the historic epi-center in chips, and strong in packaged LED lamps and the earliest mainstream applications, including keypads, handhelds, and display backlighting. Europe has been an hotbed of forward thinking lighting design, laid a lot of the groundwork for automotive applications and was the early champion of OLED technologies. In between are the US and Canada, where you find major chip, lamp and lighting companies, as well as a lot of the IP that makes up today's light engines and control systems. From an original focus on the materials and chips, Strategies has moved up the chain to a focus today on the breadth of applications and industry issues as a whole, with only a few talks on underlying componentry or technology. This is about "the markets" in which high brightness LEDs have and will find their homes.

Keynoters this year include Bas van de Kieft, Executive VP of Phillips lighting, who will share his thoughts on some scenarios regarding the penetration of the general lighting market by solid state lighting, and of course, Bob Steele who will be sharing the latest global market report and forecast. Featured speakers from luminaire manufacturers include Bob Smith, Director of Innovation and Advanced Engineering at Cooper Lighting (whose enthusiasm for SSL is extremely contagious) and Liam Kelly, who is managing director at Nualight. At the technology level, we'll be hearing from Bernhard Stapp, VP and GM of SSL at OSRAM Opto Semiconductors on the target markets and status of OLEDs. It's simple... don't miss Strategies.

Blue 2008

The next "can't miss" on the industry calendar is the Blue 2008 event, returning this year to the attractive Ambassador Hotel in Hsinchu, Taiwan, on May 7-8. Work is underway now to finalize the agenda and speakers, so expect to hear more of those details here in 1-2 weeks. Blue was launched back in 2003, as a celebration of the commercial emergence of the nitride-based blue-spectrum devices, including blue and white LEDs, as well as the blue laser diodes that were to become the heart of the "high def" DVD revolution. When blue and white were added to the existing red and green LEDs, it marked the effective beginning of the LED lighting revolution. In 2004, Blue moved to Taiwan, establishing itself as a leading industry event, with its main focus on the chip and packaged "lamp" level of the LED supply chain. In 2006 and 2007, there was an agenda emphasis on "understanding and meeting the needs of the lighting industry" with the intention to better connect the chip and packaged device producers with the rapidly emerging general lighting markets. For the 2008, it's time for Blue to bring the spotlight back onto the core level of LED innovation at the materials, chip and packaged lamp level. We're pleased to be able to bring Bob Steele and his mid-year global market update to the Asian audience. He'll be joined by Asif Anwar of Strategy Analytics, who will be covering the GaN and materials market developments, along with some related updates including a bit on blue lasers. New with us this year will be Enboa Wu of Hong Kong's research lab, ASTRI for updates on mainland China's programs and progress, and we'll be rejoined by the good folks at Taiwan's Photonic Industry Development Association (PIDA) who will provide local market insights that you don't find anywhere else. Make your plans now.

When it comes to conferences, its all about who you'll meet and what nuggets you will carry away that make a difference in your business. Who you'll meet is almost entirely dependent on the quality of the agenda, which, in turn, is driven by the organizer's market knowledge and their integration with the industry (we call it having "skin in the game"). We'll be there, and we look forward to seeing you as well at Strategies and at Blue.

100W LED Grow Light with 3640 Lumens


Solid State LED Grow Lights are gaining traction again, this time with a press release from Dialight (Lumidrives) reporting that the Canadian Standards Association (CSA) has certified for sale its new state of the art SafeSite fixture for sale. Dialight reportedly designed its SafeSite fixture to replaces conventional 175W to 250W metal- halide and high-pressure sodium light sources with 100W LED technology for hazardous location applications. CSA Certification involves stringent testing and requires that all wiring be done with CSA-approved materials.

Additional features and benefits include:

Low power consumption
Universal input supply (120 - 277 VAC)
Suitable for all Class 1, Div 2, Groups A, B, C, D
hazardous environments T4A rated
Patent pending optical design
State of the art solid state lighting source
Self-contained wiring compartment eliminates
additional junction boxes
Weather/corrosion resistant lamp assembly and housing
5 year warranty
Resistant to shock and vibration
Instant on / off response
Wide operating voltage range
Power factor > .9
THD < 20%

This is more good news for anyone looking for a stand alone fixture that could be safely used indoors as LED Grow Lights. The newly approved Solid State Lighting fixture weighs 19lbs and consumes 85-115W (100W nominal) at 110 volts; for a total output of 3640 Lumens ( 70% lumen maintenance over 50,000 operating hours ). Now if they could start offering other models in different spectrums as LED Grow Lights everyone would have a happy holiday season to rejoice over.

Taiwan LED Chip maker VPEC gains New patent in the US market

Visual Photonics Epitaxy (VPEC), a Taiwan-based high brightness LED chip maker, recently announced that the company has secured a patent for LEDs with a reflective layer in the USA market, according to a company filing with the Taiwan Stock Exchange (TSE).

Market sources also citied in a recent Chinese-language Economic Daily News (EDN) report indicated that the patent is similar to patents 5008718, 5376580 and 5502316 which Lumileds secured in 1989-1995.

More great news for the High Brightness LED Solid State Lighting industy.

iDrive™ 1000 Powers LED Grow Lights

As promised in the LED Grow Lights 1000+ Lumen LED post, here is one of many Bench Power Supplies posts for working with the latest generation UHB LEDs. This is one of the best Solid State Lighting PSUs on the market, and should be on every DIY LED Grow Light bench.
( Radiant Research- please send over an engineering sample for test and review purposes, I will pay for shipping and duty! )


Integrated System Technologies, a leading European LED driver design manufacturer, has released the new 210 Watt 3 channel iDrive™ 1000 LED driver. The driver is a natural extension to the current iDrive™ range which includes the 3 channel 350mA driver, the iDrive™ Lite. Both products incorporate patented Pulse Amplitude Modulation (PAM) drive technology and ColourCool™, a thermal management system to ensure optimum LED output and life.

The new iDrive™ 1000 delivers an industry leading level of energy efficiency provided through new patent pending technology which delivers twice the power density of the iDrive™ Lite. The breakthrough in combining high power density with leading PSU efficiency ensures the iDrive™ 1000 has a small footprint and does not require large heatsinks.

A new feature enables iDrive™ 1000 users to choose the forward current, independently on all three channels between 500mA-1000mA. This exclusive feature introduced to the high power LED market place enables users to select the forward current digitally by channel for optimum LED performance. Each channel’s forward current can be precisely varied in 50mA steps via the LED display panel. Unlike most solutions in the market, there are no external DMX address switches making it very quick to install and configure. The 1000 provides an increased forward voltage range up to 55V per channel to allow for the increase in forward voltage in high power LEDs when driving these products at higher currents. Additional features include a master/slave option, increased internal preset programmes and user selectable thermister settings for desired fixture lumen maintenance in any environment.

The iDrive™ range uses patented technologies that differentiates it from all LED drivers on the market, in addition the drivers will only supply the correct forward voltage required by each LED channel and compensates for voltage drop over long cable runs thereby optimising the energy required to drive the LED fixture. This makes the iDrive™ solutions the most intelligent and power efficient drivers on the market, providing a significant advantage to all SSL manufacturers that are serious about reducing the carbon footprint of their lighting product range.

Sales Director Matt Fitzpatrick said, “Since we launched the iDrive™ Lite in March 07, it has been received fantastically by the market place however, the design team are extremely excited about the potential of the iDrive™ 1000. There is choice globally for drivers in the 350mA 3 channel class but there are no 210 Watt high efficiency drivers that allow the user to vary the current on each channel between 500mA-1000mA. With many of the high power LED manufacturers now delivering product that is optimised at 700mA and 1000mA drive currents, we now feel that the iDrive™ 1000 will give the SSL manufacturers a high quality power supply solution and allow them to efficiently get more lumens for their money”.

The iDrive™ 1000 will be available in volume from September 2007 with engineering sample available in August
Dimensions 200mm x 150mm x 70mm
Weight 0.8Kg approx.
Compatible with all high power LEDs

About Integrated System Technologies Limited
IST Ltd is a professional lighting group company specialising in the development of innovative lighting solutions for the general, wide area, architectural and entertainment lighting industry. It offers over 20 years of experience in traditional and solid state lighting including award winning electronic and optical system design for a variety of lighting products from controllers to luminaires.

Radiant Research Ltd is the solid state lighting division of IST which designs and manufactures advanced solid state lighting products from LED light engines through to driver solutions. All LED driver technology designed and produced by Radiant Research incorporates our unique patented technology Colour Cool™ (GRANTED in UK & USA) to ensure optimum LED efficiency of multiple channel systems. This unique and patented driving technology uses Pulse Amplitude Modulation (PAM). This technique provides optimum colour mixing (RGB/A/W) and full additive luminosity which, integrated into our closed loop temperature monitory system, ensures optimum LED output regardless of environmental conditions.

Goldeneye Allowed LED Lighting Color Conversion Patent

Goldeneye, Inc., creator of light recycling technology and the world’s brightest LED light sources, today announced the allowance by the U.S. Patent Office for its patent of a new color conversion method for LEDs utilizing a solid luminescent element. This “wavelength conversion chip” can be used with Goldeneye’s recycling light cavity or attached directly to any LED. The patent covers both methods of manufacture and a wide range of applications in solid-state lighting. The technology described in the patent enables Goldeneye’s next generation of LED light products to produce white, yellow, green, red and a spectrum of visible colors from blue or ultraviolet LEDs.

"This technology will enable significant improvements in efficiency and color rendering as well as greatly simplifying binning requirements”, says Scott Zimmerman, Vice President of Technology for Goldeneye. “It also delivers life and thermal performance that powdered phosphor approaches simply cannot match.”

This patent will add to Goldeneye's already strong IP portfolio, enhancing the company’s ability to manufacture and license technology in virtually all solid-state lighting applications. It encompasses ceramic processing techniques such as tape casting and sintering to form thin luminescent sheets for volume production.

In Goldeneye’s basic technology, multiple LEDs are combined in a “light-recycling cavity” to enhance their individual brightness output. By incorporating the conversion chip in this arrangement, the individual LEDs can operate at lower drive levels with improved optical efficiency, unlike other high brightness approaches that rely on overdrive conditions. The result is a light source with a longer lifetime, greater wavelength stability and superb color uniformity.

“Our early work in the area of very high intensity LED sources forced us several years ago to develop a new type of wavelength conversion technology compatible with these high flux levels”, says Zimmerman. “The conversion chip will enable all of Goldeneye’s high brightness LED light products to operate at greater efficiency than in other conversion schemes”.

About Goldeneye

Goldeneye, Inc. is a technology foundry and light product manufacturer focused on optical solutions to the solid-state lighting market. The company is headquartered in Carlsbad, California.