i need some help with new system my company is developing for purpose of
coins with security code system uses precision laser to melt surface making
contrast 1 mm by 0.1 mm barcodes that is essentially invisible to observer
catches light just right you can see system at
i have tested system with many types of coins including ancient coins & coins
every nation i am having problems with aluminums coins at low laser power the
is undetectable by scanner but at slightly higher laser power barcodes becomes
visible to eye
i am thinking of using optical servos in attempt to search the perfect power
anyone here familiar with such optical servos devices?
Wouldn't this lower the value of these rare coins? I can understand the
need to securely identify valuable coins. But, etching in a bar code
IMHO would degrade the coins. Is there some other less invasive way of
tagging these coins?
Getting even isn't good enough.
On 9 Aug 2005 08:14:12 -0700, the renowned "Draco"
I believe some items (such as integrated circuit packages) are marked
by coating the surface with a film and then exposing the film to laser
light. This method would leave the option open of removing the film.
"it\'s the network..." "The Journey is the reward"
email@example.com Info for manufacturers: http://www.trexon.com
Did you pick up on his stated dimensions, Tim?
He's talking about a barcode mark that's only about .004" high by .040"
wide and barely visible. Shure enough, my tired eyes would never find it
I don't think I'd have a problem paying market price for a rare coin
with that kind of mark on it, if it gave me even a tiny bit more chance
to prove it was mine and recover it if it got "grew legs" and later
turned up somewhere.
But it sounds like what he described would be "removable" by someone who
knew it was there.
I use R200 and inkrepublic.com 's bulk ink system to handle my DVD
These are great tools for moonlight business.
Great deal from Office Depot for the r200
The bulk ink system you can find out from
PLEASE only do that to circulated Susan B. Anthony dollars and Eunice
Visit the RCCers favorite coins web page
Why not just use a metal punch with a serial number. Just postion right in
the center or other focal area and and give it a good whack with a hammer.
Presto, the coin is marked .
Seriously, in this day and age, it would seem prudent to PHOTOGRAPH the
coin and store the image for future reference. Why mess with the surface of
the coin at all!!??
Best Regards, O.E.Pepper
"I bought a book on how to get organized..but I can\'t seem to find it.."
"If I were any happier, I\'d have to be institutionalized."
This post looks suspicious and may be a troll.
'Genome' is certainly the nickname used by a poster
in s.e.d, but he does not use supernews and does
added s's), is used by another poster in s.e.d, but
he doesn't use supernews either.
Neither of them use the newsreader used for this post.
The GMT in the time and the inclusion of the demon.local
newsgroup suggests one of the Brits who troll d.l.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.