February 2012 Archives

A guide to costing LEDsOur Technology Editor Steve Bush has added anotherr to his series of 'Big Guides' to LED technology. His latest covers the issues of costing LEDs.

He begins:

Power LED makers have made great efforts to understand the needs of the lighting industry, resulting in a range of products which may look distressingly similar at first glance.

Seldom will only one LED fit a particular application, so even if bare minimum cost is the only requirement, designers will still have to ask themselves some questions to focus on likely candidates.

162 lm/W at 25°C from Cree lighting LEDCree is claiming 148 lm/W at 85°C (350mA) for its latest lighting LED, writes Steve Bush.

XT-E, as it has been named, will hit 162 lm/W at 25°C, it added.

"The XT-E LED more than doubles the lumens per watt of the XP-E LED family, in the same 3.45x3.45mm XP footprint," said Cree. "By leveraging the XP footprint, customers can incorporate the XT-E in existing XP designs."

LED generic.jpgLED Lighting guides

Here in one neat package is our collection of key LED lighting articles, covering white LEDs, coloured LEDs, OLEDs and Lighting LEDs...

* White LEDs

* Coloured LEDs

* LED Lighting (1)

* LED Lighting (2)

* LEDs General

* LED Optics

* OLEDs

* Costing LEDs

* LED heatsinking

* 50 year history of the LED

The Fortronic LED and Lighting Design Forum is a one day event free to engineers. It will be held at the Williams F1 Conference Centre, Oxford, on 27 March 2012.

Topics covered will include:
* LED colour/heat selection
* Thermal Management
* Driver Electronics
* Optics
* Light measurement & planning
* Applications aimed at Street, Building, Signage and Theatre,
* Light shaping (diffuser, Software Control/automation).

The organisers write: "The day comprises of 8 presentations in the morning given by speakers from leading manufactures and up to 9 workshops in the afternoon offer in depth design solutions and technical updates. 20 exhibitors support the event in our networking area where there is the opportunity to discuss your requirements with engineers from leading suppliers and network with your engineering colleagues in an informal and club like atmosphere."

Plessey to make white power LEDs in PlymouthPlessey has acquired University of Cambridge spin-out CamGaN, and will be using its technology to make white power LEDs in Plymouth.

Its critical intellectual property is a way of growing LED-quality GaN on silicon substrates.

"This technology is the product of substantial R&D investment over the past decade and the plans for its commercial development within Plessey have tremendous potential," said co-inventor Professor Sir Colin Humphreys, director of Cambridge's centre for GaN.

The power supply market for LED lighting is forecast to reach $10bn in 2016, according to a report from IMS Research, writes Richard Wilson.

The report predicts that the rapid uptake of LED lighting will result in a potential market of four billion power supply units by 2016, worth $10bn.

According to report co-author and senior market analyst, Ryan Sanderson: "Demand for LED lighting solutions is increasing rapidly for all applications from low-power residential retrofit LED lamps and bulbs to high-power commercial and industrial LED luminaires for applications such as street lighting."

Light engines hand wire with easeLED Engin has announced LED light engines with integral connectors that eliminate soldering during the assembly, writes Steve Bush.

The poke-home connectors accept 18-24AWG wires to terminate the metal-core PCBs inside LED fixtures.

With a common 50mm footprint, the LuxiGen LZC 12 die and LZP 24 die emitters can be driven up to 1A and the boards feature mounting holes for LuxiGen TIR lens-holder legs for integration with secondary optics.

"There are mounting-screw cut-outs to facilitate attachment of a heatsink. The boards include one connector for the LED and one for an on-board thermistor to be used with common constant current sources with thermal feedback option," said the firm.

AMOLED TVs stand out but at a price - IHSGlobal shipments of TVs based on active matrix organic light emitting diode (AMOLED) technology are expected to reach 2.1 million units in 2015, up from just 34,000 in 2012, according to market analyst IHS iSuppli

But even this large increase will mean that AMOLED TV shipments will still account for only 1% of the flat-panel market by 2015. The reason AMOLED will not make more of an impact on the TV market is high cost of manufacture.

LED Lighting guides

See also Electronics Weekly's roundup of content related to LEDs, with a special focus on both white LEDs and coloured LEDs, and Lighting LEDs.

* White LEDs

* Coloured LEDs

* LED Lighting (1)

* LED Lighting (2)

* LEDs General

* LED optics

* OLEDs

* LED heatsinking

* Costing LEDs

* 50 year history of the LED








Powered by Movable Type 4.37

Sponsored by Recom Lighting

This blog is brought to you in association with Recom Lighting.

Archives

Recent Comments

  • Alun Williams - Electronics Weekly.com on Wrap around Traffic Signals: That sounds believable - I guess it is one possible read more
  • Alun Williams - Electronics Weekly.com on Wrap around Traffic Signals: Maybe it is a slightly misleading headline - think pedestrian read more
  • John Henry Albert on Wrap around Traffic Signals: You could easily put a small heater into the design read more
  • LED Lights on Wrap around Traffic Signals: I like the idea of using existing poles and LED read more
  • Lighting Enthusiast on Wrap around Traffic Signals: This is an interesting design. I recently read somewhere that read more
  • Interior Ideas on An accent on LED sofa lighting: Really? What is the point of this. All your going read more
  • Dale of DesignerGoodies.com on Sleeved LED kit highlights computer cases: I honestly don't understand why people chav up the computers read more
  • Janice on Super-bright LED Bazooka: Well, that sounds like a lot of light - probably read more
  • Rafael Gomez on LED Life Expectancy: how long is the usual life span of a good read more
  • Alun Williams - Electronics Weekly.com on LED display comes to Vodka bottles: And did you try setting the LED lights, John? read more

Author Profiles

Paul Ward
As Opto Product Manager at Farnell, Paul is overseeing the company's involvement in the rapidly evolving and high profile LED lighting market sector.

As well as ensuring that Farnell offers the latest technologies and products related to solid state lighting, Paul is also responsible for ensuring that the resources are in place to make it easier for design engineers to specify and design-in LED solutions for their applications.

Educated in Production Engineering and Design at Sheffield Hallam University, Paul has worked in various engineering, training and marketing roles for companies including C&K switches, ITT Cannon, Cherry and LED specialist Chicago Miniature Lighting.

Away from the world of LEDs, Paul is a Founder of the charity RTTW, Photographer and Harley Davidson rider; he has ridden and snapped across Europe, New Zealand and the USA on his chrome hog!

Gordon Routledge
Gordon Routledge is one of the original pioneers in LED illumination having worked with LEDs in illumination applications since 1996. Currently VP of Illumination at Dialight, Gordon founded Lumidrives in 2001, having previously been managing director at ACDC Lighting Systems. Gordon has a degree in Electrical & Electronic Engineering from university of Manchester Institute of Science and Technology.

Ian Bryant
ian bryant.jpgIan Bryant is Business Development Manager LED Division at Carclo Technical Plastics. He has worked on and off at Carclo (Formerly Combined Optical Industrial) since leaving school. He has worked through the company from Toolmaking to starting the company on the road of LED optics business some 6-7 years ago, starting with a standard range and more in line with the business of custom optics. In between all this he has worked in engineering and as a works Director for a hydraulics company but kept getting pulled back to the optics industrial. We are able to offer the full solution from idea to parts so have a very good understanding on what is needed. You will see some posts from our design team also under my name.

About this Archive

This page is an archive of entries from February 2012 listed from newest to oldest.

January 2012 is the previous archive.

March 2012 is the next archive.

Find recent content on the main index or look in the archives to find all content.