Low Contrast Barcode Reader??

[GeraldKW]

I am working on setting up a barcode system that utilizes etching in a transparent substance. I am looking for a barcode scanner that needs the lowest contrast possible. If anyone has any tips that you may be uncovered, I would really appreciate them.

 

[DougP]

first things first
can you fill the etching with a black ink and see if it will scan with a normal barcode scanner. Just as a test?
DougP, MCP

 

[GeraldKW]

I have in fact done that, and I could read the barcode, but not reliably. I think it was reflecting inside the glass. However, I can't use ink in the application that I am designing.

 

[DougP]

A company makes a process to create raised barcodes on metal. But the scanner is very expensive. Several Thousand $$$$$. Maybe you could send them a sample of yours and see if their scanner can read it.
I don’t recall the name
Look on the internet for Metal Stamping

DougP, MCP