Version 3 of TouchScreen…

Oct 16, 2007

I thought you’d all like to see the first integrated screen and LED Guide working…

Whats different from previous versions, you might ask?
– LED Guide, touch surface, video screen and backing sheet are now in one strong, reasonably nice looking frame
– LED orientation gives even light distribution across screen using only side arrays
– Heat dissipation into frame is reduced and now manageable.

what needs to be done next?
– Narrow beam LED circuits need to be made and tested. As it stands I am 2 circuits short of filling the screen with light and
found some narrow beam, very bright LEDs that should be tried… they will reduce spillover and may improve performance.

– decide on housing shape (table, kiosk…convertible?) and build it (or whatever variations seem to make sense) so you guys can have a new toy to play with and we can begin to get some applications developed and running on it…

here are some development process pix:

the AutoCAD cross section

Milling the slot to hold the touch surface…

just finished cutting the shelf that makes connection to next piece

the four pieces before cutting off clamp ends

partially assembled showing LED circuits..

……more as it happens…..

cheers, ronmac

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