IR receiver window

Pickup an old VCR, DVD, CD, TV from the roadside and remove it from there?

I's be inclined to check the various 3mm sheet plastics in red and smoked colours. May be worth evaluating them with a ccd camera and IR illumination in a dark room to see how transparent they are.

If worst comes to worst (and I'm guessing you're not going to find something like that as a spare part), acrylic.

Any colour at all, while it's opaque to visible light, it's transparent to IR.

On Tue, 12 May 2009 08:47:37 +0800, "Alan Rutlidge"

just buy a couple of small cctv replacement domes , one of those will make hundreds of windows for a couple of bucks

Tooling costs wouldn't make it cheaper than a large sheet of acrylic cut into little rectangular squares. Circles would cost more, but you need to evaluate the tooling on the box too. Rectangular holes in a box are more costly than a simple hole. Need to get the calculator out and do some adding here.

It really doesn't need to (and shouldn't) be fancy. Heck, the trend on remotes is to mould a hole into the plastics and simply poke the IR led out directly.

At the receiving side, the fancy window is integrated into the display panel, so you don't need a separate window for the IR receiver, and double up on the use of the translucent window for the display that needs to be there anyway.

You're hands would be tied if the case is complete except for the IR hole, but that would more than likely show bad engineering behind it. (and a distinct lack of forethought).

Try these guys:

Dave.

If you are happy to cut yourself, Jaycar have red perspex - HM9505 $9/sheet from Electus.

Dave.

Thanks Dave,

Quite a good alternative to a commercially made window and I can cut a heap of them from a sheet that size.

Cheers, Alan