LightFair part 1 - White LEDs and light engines
Among the key trends at this year’s LightFair was a focus on usable white light (providing color control, consistency) and also the development of solid-state lighting platforms.
In general, many companies seemed to have moved past the stage of exhibiting LED-based products simply to because they are a new technology; instead, there was more of a sense of accepting the current limitations of LEDs which makes them more appropriate for certain product categories than for others. Even so, there continues to be a gap in sophistication between companies that simply put LEDs into fixtures, and others that understand the fundamentals that make LED systems work properly.
Platforms and light engines
Because of the many design considerations involved in building luminaires using LEDs – thermal, optical, mechanical and electrical – some companies have taken the approach of integrating the necessary technology into a solid-state building block that can form the core of different luminaire designs. Two excellent examples of this approach were from TIR Systems and Dialight.
One of the highest-profile LED-related announcements at the show was TIR's LEXEL technology, which incorporates key advances in thermal management, optics and color control - see TIR Systems unveils LEXEL lighting platform.
Along similar lines, Dialight displayed several lighting products based around its integrated solid-state light engine, which contains proprietary optics and is capable of generating a flux density of 1,214 lumens per square inch – see Dialight demonstrates integrated solid-state light engine.
|Teledyne Photon Engine|
White LEDs and white lighting products were emphasized by a number of companies, with a focus on improving color consistency and controllability and reducing the variations inherent in the manufacturing process. Osram Opto Semiconductors announced a design win for its white Golden Dragon LEDs with Color Kinetics (see news item); the devices are incorporated into iW Blast fixtures containing warm white and cool white LEDs.
|Encore EXIT combo|
Elsewhere on the scale of white LED fixtures, Maxlite introduced a series of 2700K light bulbs containing four white LEDs and developed in conjunction with Toshiba (see Maxlite introduces 2700K LED light bulbs).
LED systems capable of replacing neon were offered by a number of companies (see Exposed neon appearance in robust GELcore LED system).
iLight Technologies’ approach for generating white light in its Plexineon product is to use high-intensity blue LEDs in combination with different colored covers to produce white at 3500K, 4500K or 6500K. iLight also exhibited a 1-foot strip of blue Plexineon capable of producing 15,000 lux, which contained 5 W Lumileds devices positioned 0.5 inch apart.
More new products at LightFair
The New Products Showcase Awards featured a large number of LED-related entries – among the winners were products from Nualight, Waldmann Lighting, e3LED, Color Kinetics, Xenon Light, Dialight, Hess America, Lamina Ceramics (see LED products pick up awards at LightFair).
|Prescolite LD4 LiteForms|