Optics
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Hola,
I am using an IR transmitter and receiver circuit to be placed next to
one another with proper shielding. I would like to use a reflective
device about 15 meters away from their position to reflect the
transmitter IR back to the receiver. Does anyone know of any web pages
that would have information on this?
Thanks,
jesse
I am using an IR transmitter and receiver circuit to be placed next to
one another with proper shielding. I would like to use a reflective
device about 15 meters away from their position to reflect the
transmitter IR back to the receiver. Does anyone know of any web pages
that would have information on this?
Thanks,
jesse
Comments
A coated surface will improve reflection efficiency.
Special IR coatings are available at great cost.
Date sent: Sun, 12 Mar 2000 14:52:47 -0600
From: jbabich@p...
To: basicstamps@egroups.com
Send reply to: basicstamps@egroups.com
Subject: [noparse][[/noparse]basicstamps] Optics
> Hola,
> I am using an IR transmitter and receiver circuit to be placed next to
> one another with proper shielding. I would like to use a reflective
> device about 15 meters away from their position to reflect the
> transmitter IR back to the receiver. Does anyone know of any web pages
> that would have information on this?
> Thanks,
> jesse
>
>
>
> eGroups.com Home: http://www.egroups.com/group/basicstamps/
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>
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Ronald Doctors
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>one another with proper shielding. I would like to use a reflective
>device about 15 meters away from their position to reflect the
>transmitter IR back to the receiver. Does anyone know of any web pages
>that would have information on this?
Not sure about web pages with details, but reflective safety tape
(ScotchBrite, etc.) makes a dandy reflector. Light goes in, shoots out
again at suprisingly high brightness. You lose coherence (they're made to
scatter light to act as safety reflectors), but they're great for bouncing
photons around.
As to availability, you should be able to find some sort of safety tape at
any hardware store in the universe. Check around the mailboxes, house
numbers, driveway reflectors, etc. That's where most hardware stores keep
their safety stuff, in my experience.
-- Pat
______________________________________________________
35mm square, that do exactly that. At $35 a pop in single, it's not that
bad a price. A corner cube reflects any light back the way it came,
regardless of the orientation of the cube itself. In a nutshell, it's
three mirrors forming a three sided inside corner. Very powerful and nifty
device, and used a lot in measurement devices.
Go to http://www.edsci.com/ to the optics division and ask for a
catalog. I drool over this catalog every time I get one, and I get one a
lot! The optics division doesn't have a searchable web site, and it wasn't
on the scientific side of the house.
Original Message
From: patrick innes <pkinnes@h...>
To: <basicstamps@egroups.com>
Sent: Tuesday, March 14, 2000 10:49 AM
Subject: [noparse][[/noparse]basicstamps] Re: Optics
> >I am using an IR transmitter and receiver circuit to be placed next to
> >one another with proper shielding. I would like to use a reflective
> >device about 15 meters away from their position to reflect the
> >transmitter IR back to the receiver. Does anyone know of any web pages
> >that would have information on this?
>
> Not sure about web pages with details, but reflective safety tape
> (ScotchBrite, etc.) makes a dandy reflector. Light goes in, shoots out
> again at suprisingly high brightness. You lose coherence (they're made
to
> scatter light to act as safety reflectors), but they're great for
bouncing
> photons around.
>
> As to availability, you should be able to find some sort of safety tape
at
> any hardware store in the universe. Check around the mailboxes, house
> numbers, driveway reflectors, etc. That's where most hardware stores
keep
> their safety stuff, in my experience.
>
> -- Pat
>
> ______________________________________________________
>
>
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