Terry,

Are you being funny?
With barcodes and scanners cashiers don't need to read to price labels.

He wants to devise a scanning method that identifies the type plastic
without the need for labels.
The optical properties of each plastic type would act like a natural bar
code.

Harry


On Thu, Feb 27, 2014 at 12:35 PM, Terry Blanton <hohlr...@gmail.com> wrote:

> On Thu, Feb 27, 2014 at 11:43 AM,  <fznidar...@aol.com> wrote:
> > Thank you Jones.  I want to detect the bottles before they are shredded
> and
> > washed.
>
> Why don't you just read the code off the bottom of the bottle?
>
> http://en.wikipedia.org/wiki/Plastic_recycling
>
>

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