Different applications require different optics, as professionals are increasingly coming to understand. Yet many manufacturers still rely on off-the-shelf optics. Why? Because they're used to it. That's the way they got accustomed to building luminaires in the pre-LED past, when complete standardization was the industry watchword.
But with the introduction of the small LED light source, the situation changed. Small LED sources could deliver sharper light distributions, thus cutting down on spill light – and, significantly, increasing energy savings. A rigidly standardized optic, on the other hand, prevents full optimization of light quality and degrades this energy-saving potential. There’s therefore an increasing need for a full range of application-tailored optics.
The right optic in your LED luminaire and lighting design can deliver the following:
Clearly, the right optics choice is crucial to your ability to provide lighting that fully satisfies all of the needs of an application and the users in it. The right optics let you balance a variety of imperatives, from performance to reliability to costs to government requirements and beyond. Choosing it isn't to be taken lightly.
One ideal solution for future-proof and guaranteed optical performance is Philips
A complete range of application-tailored optics ensures a perfect fit for every outdoor application. The optics offer flexibility, enabling standardization across applications and ensuring outstanding performance across a wide range of geometries in various applications, including high-traffic and less-used roads; tunnels; city centers and squares; and sports facilities. They're also capable of fulfilling design parameters related to such issues as tilt and overhang. They're easy to use and the distribution remains the same, so even after a LED upgrade you'll be assured of design continuity. In addition, they comply with all national and European road-lighting standards.
Using a standard engine across the portfolio means you'll benefit from the latest LED upgrades to various products without changing light distributions. The flux packages are pre-defined across product
The choice of optics can make a radical difference on the final result. Below you can see the example of a road lighting design using different optical solutions. Even though there is light everywhere on the road on the left image, you can see that the light is highly concentrated on the road, resulting in two effects. First, the pedestrian zone on the side is poorly lit, creating an uncomfortable and maybe even unsafe environment for pedestrians. And second, the concentration of the light on the road creates an undesired “tunnel” effect for drivers.
Even though the application of narrow optic may bring the desired reduction in terms of energy, we can clearly conclude that this is not the ideal solution for the users of the area. On the other hand, when you look at the image on the right-hand side, you can clearly see that in this
Standard and pre-defined solutions make things easier — but there also has to be room for a bit of flexibility. To put it in conventional terms: Have you ever dreamed of having a 60W lamp in addition to the
The first step is simply to type into the L-Tune interface information regarding the selected luminaire and flux you’re using in your lighting calculation, as well as your preferences regarding lumen depreciation, LED operational lifetimes, dimming, and more. L-Tune then calculates different solutions for the same flux. You can choose from these the one that will achieve the best possible balance between cost, lifetime, and energy consumption.
L-Tune also helps you match your local requirements, which can be even more strict than regional ones in terms of the minimum lumen maintenance or power factor
Optics innovations like Philips
Having checked off all of that, you’ll be ready to generate a design and provide or identify the following:
This last phase, when your project really takes shape, will go the smoother if you’re regularly talking with different stakeholders to define the best solution.