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Epson unveils a prototype projector using an LED light source

Posted at 04 September 2005 02:19 CET by Seán Byrne
While projectors seem like a low hassle way of setting up a home cinema system, consumers have been put off by the issue with requiring a dark room and replacing the very costly consumable bulb ($250 to $600) that only lasts an average of 1500 to 3000 hours depending on the projector.  Well, recently black screen technology has been developed to allow a bright picture in well lit up rooms.  Now, Epson has announced a prototype projector that uses LED light as its light source. The prototype has a small footprint of just 13.8 x 10.3 cm (5.4" x 4") and weights just 500g (~18oz).  This projector uses Epson's 3LCD technology, which aims to provide bright and natural looking images.  Other advantages with using an LED light source includes instant warm-up, long lifetime and a rapid cool-off when powering off.  So far, no announcement has been made about its expected lumen rating or contrast ratio or when the projector will hit the market.  The projector is currently being presented at the IFA trade show, which is held in Berlin, within Germany.  Epson today announced that it had succeeded in developing a prototype postcard-sized mini-projector using an LED light source. With a footprint of just 13.8 by 10.3 centimeters (just smaller than a sheet of A6 paper) and a slender profile, the 500-gram prototype can fit easily into the palm of your hand. The mini-projector can be viewed at first hand by visitors to the IFA trade show to be held in Berlin, Germany, from September 2 to 7. In addition to allowing ever more compact design, LED light sources provide several advantages over conventional lamps including immediate projection readiness, a long running time, and swift switch-off. The use of an LED light source in a projector is a first for 3LCD. With these two improvements in projector technology, projectors may become a very good competitor against Plasma, rear-projection and other large TV sets, especially with consumers upgrading to HDTV sets to take advantage of HD broadcasts or to prepare for the upcoming Blu-ray and HD DVD players.  The other advantage is portability, for example the projector can easily be carried on holidays and used with a portable DVD player for watching movies while staying at a hotel or B&B.  The drawback with current projectors is that their bulb can fuse unexpectedly like with any other light bulb.  I had this happen twice before while using a digital projector, long before the bulb reached its expected lifetime. For a guide on choosing a big screen, such as how projectors compare against plasma and rear-projection TV sets, see this forum sticky.  Source: Cameratown

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There are 4 comments

the bean
New on Forum
Posted on: 04 Sep 05 02:41
    i see that LEd lights are becoming more and more populair. like changing the traffic lights in Belgium with led type lamps. if these projectors have enough ansi lumens, i see a "bright" futre ahead!
    Ranmacanada
    MyCE Senior Member
    Posted on: 04 Sep 05 08:29
      Yes I agree this is a good thing. Even here in my small town in Canada we have replaced all our street lights with LED's cause they are cheaper. I hope that this comes to market and is not super expensive, cause it would make upgrading the tv so much cheaper Then I can actually read what I am typing cause a 36" TV as your monitor is not always the greatest for small type :P
      agomes
      CDFreaks Resident
      Posted on: 04 Sep 05 10:03
        Even some cars have LED lights now, VW beeing an example. I don't know if they use it for the all set, but believe so and the intensity for the long range front lights require a lot of "power" and it could maybe fit the projector needs. Considering this, projector prices could become much lower...depending on manufacturers decisions and marketing blabla not deciding to say that the involved technology and research costs impose higher prices.
        Seimour
        CD Freaks Junior Member
        Posted on: 05 Sep 05 08:37
          I was planning to buy a lamp projector but I think I'll wait till this is released. It looks good because LED bulbs last LONGER that standard bulbs, and they're cheaper. BTW BMW has been also using LED in the rare of their cars for a long time: Stop lights and blinkers

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