Author Topic: LED indicator rings for rotary encoders?  (Read 10766 times)

ZiggyZipgun

LED indicator rings for rotary encoders?
« on: December 27, 2009, 10:50:13 AM »
I know there has to be more available, but all I've found thus far are these from Top Up in Taiwan, and most of the data sheets are blank since I don't have the Chinese language packs installed for Adobe Reader.  So much gear these days uses the indicator rings - and not just teeny LEDS mounted to the board with individual holes for each one - so there must be some out there...right?
http://top-up.so-buy.com/front/bin/ptlist.phtml?Category=336089

ElectricDruid

Re: LED indicator rings for rotary encoders?
« Reply #1 on: January 15, 2010, 02:37:18 PM »
now *that's* funky!

This is the only one I know about, from Conrad Electronic. I think it's a German firm, but they've now got a UK webshop. Maybe they have other international sites too.
It's not just the ring, but the encoder too. Pity they're so damn expensive...

http://www.conrad-uk.com/goto.php?artikel=700608

T.

JKowalski

Re: LED indicator rings for rotary encoders?
« Reply #2 on: January 15, 2010, 04:05:08 PM »
The Nord ones are nice...

http://www.nordkeyboards.com/products/nord%20stage%20ex/images/synthsection.lg.jpg

The reason for that was:
I think how they do it is they make a plastic case to house a bunch of discrete (mini-rectangle in this case) LEDs. Other companies most likely do similar things. It's cheaper.

ZiggyZipgun

Re: LED indicator rings for rotary encoders?
« Reply #3 on: January 15, 2010, 05:24:18 PM »
Ah, but the one from Conrad is made by Alps - and that's pretty easy to track down.  Having scoured their data sheets quite a bit, I'm surprised I hadn't seen that kind of thing til now.  Since my original post, I did come across LEDtronics, which makes a crescent bar-graph array, but so far they're the only ones I've found that make something like that.  More practical that the TOP-UP ones, but minimum quantity is 100, and unlike Alps, other companies don't carry them.

http://www.ledtronics.com/products/ProductsDetails.aspx?WP=C91K162