what about using those transparent tubes that can deliver the led light, so
you need less leds to use, each led can cover about 4-5cm along the tube.

it also used in thus brake lights at cars

Tal

-----Original Message-----
From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU]On
Behalf Of Jinx
Sent: Thursday, December 27, 2001 11:56 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [EE]: big led display


> But how large were your digits?

They wanted 30cm by 5cm segments, which worked out to 3
rows of 40 5mm LEDs at 0.3 inch spacing. So each digit was
around 70cm high by 45 wide. Putting the LEDs further apart
just didn't look right so it needed that many. They choked on
the price, but never followed up on the magnetic idea. Not a
clue what, if anything, they ended up with. If you need only two
digits sounds like yours is still feasible in LEDs. Have you
thought about 12V fluorescent tubes ? Length and shape is
right, don't know about brightness though

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu