Human-centric lighting was a sufficiently significant trend at L+B that the LightingEurope organization presented a walking map of such demonstrations around the fairgrounds. Indeed, the organization is targeting the application with its SSL-erate initiative that was heavily promoted at the fair.
Here, however, let’s progress through some key technology and lighting exhibits at the fair that all are tied to the central themes of light quality, dynamic control, and efficiency. We’ll cover topics ranging from retrofit lamps to luminaires to light sources.
Retrofit lamps
We can’t seem to get away from the retrofit lamps space, because the technology is simply the first touch point for most people when it comes to LED lighting. But what was different at L+B was the focus on light quality and aesthetics in lamps. For example, Philips Lighting and Osram hosted eerily similar demonstrations of low-output A19 lamps with very elegant designs.
FIG. 1. Osram’s LED Superstar Classic A40 LED could virtually pass for an incandescent bulb in the on or off states.
FIG. 1. Osram’s LED Superstar Classic A40 LED could virtually pass for an incandescent bulb in the on or off states.
The Osram LED Superstar Classic A40 is a 40W-equivalent lamp that is designed to more closely mimic a clear incandescent lamp in both the on and off states (Fig. 1). Likewise, the Philips Master LED (also referred to as LED Clear Classic) looks very much like a filament lamp. Both designs appear to use a light guide that functions somewhat like a filament with the LEDs hidden in the base. Although the lamps do have a white plastic neck, it’s hard to envision an application for a clear incandescent lamp in which these led street lighting fixture wouldn’t serve admirably.
The other story in retrofit lamps was in more products with integrated wireless controls for on-off, dimming, and in some cases color selection. Philips perhaps led the way with more Hue products including both a white-only Hue Lux version and a new control product called Hue Tap. We covered those products in more detail in an earlier online story. And there were numerous other wireless lamps demonstrated based on ZigBee from the likes of Samsung, LG Electronics, Osram, and others.
But use of the ZigBee standard for wireless isn’t universal. Megaman, for example, announced its Ingenium Smart Lighting family at L+B. The family includes lamps with Bluetooth support for simple smartphone control (Ingenium Blu), and more complex systems that rely on a proprietary wireless scheme (Ingenium RF). The latter family includes lamps, wall panels, dimmer modules, and a Wi-Fi bridge with support for as many as 288 lamps on one network.
The diversity of network options will remain a challenge for the industry until some movement is made toward at least de facto standardization. But that may not happen soon and companies such as Osram are preparing for a multi-network environment.
Indeed, a highlight of the Osram exhibit was the new Lightify product concept. The tablet-like controller can be used to set light levels and control color spectrum. Osram said the product is due on the market this fall. But the more interesting angle is that the company will support ZigBee, Wi-Fi, DALI (digital addressable lighting interface), and perhaps other lighting networks or interconnects.
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