Saturday, January 11, 2014
Bright Ideas: Lamp-Less Projector Update
www.avnetwork.com: Ask anybody who has to install projectors and keep them running about what they hate most about the job, and you’re likely to get an ear full of their fear and loathing of having to change lamps every year or two. It’s not only tedious and expensive, but for some out-of-the-way projectors, it can even be dangerous.
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Lamp-less projectors seem to be the wave of the future. Brian Nadel’s article gives a good overview of the benefits of going lamp-free and also the different approaches to alternative technologies that are being developed. Nadel cites danger and cost as two main reasons for making the switch. Depending upon where a projector is installed, changing the lamp can be in some cases be a health risk. And with the approximate 3,000 hour bulb-life of conventional projectors, replacement bulb costs (Nadel states between $100 - $500), quickly add up. The three lamp-less technologies currently in development are lasers, LEDs, and a hybrid of the two. (For the details on how these work, read the article!) The lifespan of these alternative illumination sources are between 10,000 to 100,000 hours, ultimately winning in cost analysis over their conventional counterparts. While light output (lumens) still remains an issue, strides are being made in this arena of lamp-less technology. Other benefits include a wider range of colors, and less noise since fan-cooling a hot lamp is no longer an issue. The bottom line? While lamp-less projectors may not be the answer to every situation, they are now at the point to provide a solid alternative for most needs.
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