Those plastic windows that display light from circuit behind...

[IamJon]

What are these things called? Like you have in your car, or keyboard etc. There's an LED behind them, but all the part is that's mounted on the surface is a plastic window that catches the light to display to the user? I need to purchase some, so if you have any idea what they're called or where to buy them, I'd appreciate the input. Thanks.

[BobB]

Annunciator?

[IamJon]

Lens or cap maybe. What I want is more than just a cap, I want it to capture the light from below and direct it to the top. Edited October 10, 2012 by IamJon

[OkiePC]

In some cars, there are simple clear plastic "pegs" sometimes painted with a silver reflective paint that direct incandescent light and spread it out to the seat belt warning light, for example. Some newer ones even have fiber optic cable directing light from several feet away. I think we need a picture of what you re trying to highlight with this lens. Edited October 11, 2012 by OkiePC

[Mendon Systems]

I think what you are describing is a "light pipe". It is a low tech form of a fiber optic. They are generally just a round piece of clear acrylic rod custom made for a specific application. The Mouser Electronics catalog lists some, but I don't know if they are what you want.

[BobB]

There are complete annunciator systems and annunciators you can drive from uour PLC. Here are a few links from a simple Google search http://www.mscontrols.com/ALM200.htm http://www.wernerelectric.de/annunciator-windows.html http://www.alibaba.com/showroom/annunciator-windows.html http://www.clrwtr.com/PDF/IDEC/IDEC-Annunciator-Panels-SLC40-Series.pdf I think this probably what you want

[IamJon]

Thanks guys. Light pipe is it.