Re: high resolution optical encoder patterns.

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#2199

From: Paul Burke
Date: Thu, 25 Sep 2003 07:28

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Cory Seligman wrote:

>
> Does anyone know of somewhere I can get stripes like that printed
> directly on the steel? Or etched?
>
> Any thoughts on producing a clear strip with black stripes
> photographically?
>
If you get hold of some old HP Deskjet printers, they have a nice little 
linear encoder (a transparent plastic strip) for the head positioning 
system. It's about the width of an A4 sheet and probably has a 
resolution of 300DPI! I expect they used to produce the stuff in long 
lengths, so maybe HP have it in their catalog somewhere.

Paul Burke

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From: Paul Burke <paul@scazon.com>
Newsgroups: sci.electronics.design,aus.electronics
Subject: Re: high resolution optical encoder patterns.
Date: Thu, 25 Sep 2003 08:28:45 +0100
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