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keepps
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« on: September 10, 2005, 08:32:57 AM »

Has anyone used one of these laser projection keyboards?
http://www.plawa.com/mobilities/celluon/laserkeyboard/laserkeysmart/
The described (expensive) lithium battery life seems short to me, but otherwise....looks interesting. Is it reliable in the hands of the kids?
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Petra
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« Reply #1 on: September 11, 2005, 09:37:11 PM »

I have seen it and talked to the tester. He told me that you can't use it on a glass table, but it is interesting indeed. You need to get used to the unusual feeling - you don't feel nor hear the keys.

It's rather expensive. If it's useful for school I can't say, but might get a chance to test it.   Kiss

Cheers, Petra
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thijs
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« Reply #2 on: September 13, 2005, 08:26:46 AM »

Has anyone used one of these laser projection keyboards?
http://www.plawa.com/mobilities/celluon/laserkeyboard/laserkeysmart/
The described (expensive) lithium battery life seems short to me, but otherwise....looks interesting. Is it reliable in the hands of the kids?


I didn't test this brand in particular, but I did just test one from i-Tech (http://www.itechdynamic.com/html/border25.htm). I found it a bit difficult to connect en reconnect it to devices (I tested it on a PDA, smartphone and laptop). The battery life was too short, but I think it's because of a broken battery or somethink because other reviewers got up to two hours and more with it. A disadvantage is when it's too light at the place you are using it, it's difficult or impossible to use it. But the big advantage is that you have a full-size QWERTY keyboard that works surprisingly well.
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Graham
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« Reply #3 on: September 13, 2005, 09:27:57 AM »

Personally having seen these projected keyboards in action and compared them to the small portable fold out ones I'm yet to be convinced by the projected laser versions.

Firstly, what's the point?

if you're projecting a keyboard you need a flat space and more space in which to project than if you were using the pgysical fold out variety.

Second, as mentioned, you don't have the feel or travel of the keys. Feel and travel is not a design accident, quality designed keyboards design in travel to prevent R.S.I. and other such ailments.

A fold out keyboard is as small as a PDA and a lot thinner, the one I use is no bigger than a man's wallet and sits on my lap when I'm on a train.

The projected keyboards certainly have the bling bling wow factor but personally I don't think they are all that. It would be better to, rather than be a keyboard replacement, that they were a new type of input device like, for example, a wacom to get drawing of 3D scanning data into the handheld.
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swalthes
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« Reply #4 on: September 13, 2005, 03:41:34 PM »

I would agree with Graham.  I like having a keyboard for my handheld, although, I still prefer to type on a full size boord over a laptop, and a laptop over my handheld.  There just isn't enough room if you have large hands.

Not sure of their application with handhelds, but the info I saw on them a year or so back suggested they be used in "clean" environments (labs, hospitals, clean rooms, etc.) in conjunction with a desktop machine as to avoid that gunk that inevitably gets trapped between keys.
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S. A. Walthes
Education Technology Consultant / Techology Coordinator
Madison County ROE #41-SIS
Edwardsville, IL  USA
http://www.madison.k12.il.us
thijs
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« Reply #5 on: September 14, 2005, 08:29:42 AM »

That's a bit pessimistic I think. I think it's a good step in the direction of finding new ways of input.
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Gill
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« Reply #6 on: January 14, 2006, 03:50:59 PM »

I played with one at a conference recently. Exciting to start with, but as a touch typist, I found I needed to watch the projected keys as I typed. Apart from the need for a flat surface (no good for Graham's knees on the train), it also requires a plain surface. The table I was using was wood with quite a strong grain, and I very soon found that I was having difficulty focusing on the letters.  Shocked

Innovative idea though.
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