Re: [time-nuts] LTE-Lite
We were talking about remotely viewing light from small things
like LED's. I hardly think that telling me about a 1m diameter
solar "light pipe", or the marvels of ancient Egyptians is relevant.
I see two types of devices used for moving light remotely:
-
fiber optic, which is a standardized media, and is available
off the shelf, and in any length you want. It isn't all the
stuff meant to run data around. -
custom molded acrylic light pipes, which are, well, custom
made devices for the situation at hand.
Which of the two do you think is more applicable to the OP's
needs?
-Chuck Harris
Dr. David Kirkby (Kirkby Microwave Ltd) wrote:
On 5 Dec 2014 13:19, "Chuck Harris" cfharris@erols.com wrote:
I think the name "light pipe" has been supplanted by fiber-optic.
-Chuck Harris
Technically I agree that they have a lot in common. But I think the large
devices, which are often not cylindrical, are usually called light pipes.
http://uk.mouser.com/Mobile/Optoelectronics/LED-Indication/LED-Light-Pipes/_/N-b1d20
Some light pipes are hollow inside. I think that is stretching the
definition of optical fibre.
According to Wikipedia, light pipes or light tubes were originally
developed by the ancient Egyptians.
Some of these things are hollow are more than 1 m in diameter. I would
hardly call that an optical fibre.
But call them what you fancy (optical fibre, multi more fibre, waveguide,
light tube, light pipe. ...) I think such a device might solve the problem
getting the LTE Lite's status LEDs onto a box.
I don't have an LTE Lite, but given that they are low power devices, where
heat generation is undesirable, I suspect that the light output level
might be a bit low. In which case a photodiode or similar may be needed.
Dave.
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
That is a good suggestion. But I fall into the camp. "Not really that
important now."
At least not to get me to pull it out of the rack. :-)
The little LED are pretty bright and I remember some broadcast equipment
used light pipes.
OK now I am going to get silly but this is time-nuts. I think light pipe
and fiber optics are two different terms.
Yes they both pass light. But a fiber optic is a precision glass or plastic
waveguide. A light pipe is a bulk piece of plastic that is not a wave guide
in respect to the accuracy of the walls.
Oh I am so doomed now that I said that.
Regards
Paul
WB8TSL
On Fri, Dec 5, 2014 at 9:10 AM, Dr. David Kirkby (Kirkby Microwave Ltd) <
drkirkby@kirkbymicrowave.co.uk> wrote:
On 5 Dec 2014 13:19, "Chuck Harris" cfharris@erols.com wrote:
I think the name "light pipe" has been supplanted by fiber-optic.
-Chuck Harris
Technically I agree that they have a lot in common. But I think the large
devices, which are often not cylindrical, are usually called light pipes.
http://uk.mouser.com/Mobile/Optoelectronics/LED-Indication/LED-Light-Pipes/_/N-b1d20
Some light pipes are hollow inside. I think that is stretching the
definition of optical fibre.
According to Wikipedia, light pipes or light tubes were originally
developed by the ancient Egyptians.
Some of these things are hollow are more than 1 m in diameter. I would
hardly call that an optical fibre.
But call them what you fancy (optical fibre, multi more fibre, waveguide,
light tube, light pipe. ...) I think such a device might solve the problem
getting the LTE Lite's status LEDs onto a box.
I don't have an LTE Lite, but given that they are low power devices, where
heat generation is undesirable, I suspect that the light output level
might be a bit low. In which case a photodiode or similar may be needed.
Dave.
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
Mount the LTE-lite to the front panel with a cutout and a green bezel so
you can see the LEDs directly.
--
Brian Lloyd
Lloyd Aviation
706 Flightline Drive
Spring Branch, TX 78070
brian@lloyd.aero
+1.210.802-8FLY (1.210.802-8359)
The OP said he couldn't find anything applicable when he was
looking for "light pipe". So, I offered him a suggestion for
why. Ultimately, we are talking about locating something
using a search engine.
The public has taken to the high tech sounding term "fiber optic"
to describe what used to be called a light pipe. If it is thin,
and flexible, and moves light from one location to another, it
will be known to most people as "fiber optic".
As an example, sitting here on my workbench is a light that I use
to illuminate objects under my Olympus stereo microscope. It is
made by Nikon, and has the following words inscribed on its panel:
"NIKON, Inc. MKII Fiber Optic Light"
Do you imagine that it is a precision glass or plastic waveguide,
or just a flexible light pipe?
-Chuck Harris
paul swed wrote:
That is a good suggestion. But I fall into the camp. "Not really that
important now."
At least not to get me to pull it out of the rack. :-)
The little LED are pretty bright and I remember some broadcast equipment
used light pipes.
OK now I am going to get silly but this is time-nuts. I think light pipe
and fiber optics are two different terms.
Yes they both pass light. But a fiber optic is a precision glass or plastic
waveguide. A light pipe is a bulk piece of plastic that is not a wave guide
in respect to the accuracy of the walls.
Oh I am so doomed now that I said that.
Regards
Paul
WB8TSL
actually, Magritte had it: “this is not a pipe”
Don
On Dec 5, 2014, at 8:01 AM, Chuck Harris cfharris@erols.com wrote:
The OP said he couldn't find anything applicable when he was
looking for "light pipe". So, I offered him a suggestion for
why. Ultimately, we are talking about locating something
using a search engine.
The public has taken to the high tech sounding term "fiber optic"
to describe what used to be called a light pipe. If it is thin,
and flexible, and moves light from one location to another, it
will be known to most people as "fiber optic".
As an example, sitting here on my workbench is a light that I use
to illuminate objects under my Olympus stereo microscope. It is
made by Nikon, and has the following words inscribed on its panel:
"NIKON, Inc. MKII Fiber Optic Light"
Do you imagine that it is a precision glass or plastic waveguide,
or just a flexible light pipe?
-Chuck Harris
paul swed wrote:
That is a good suggestion. But I fall into the camp. "Not really that
important now."
At least not to get me to pull it out of the rack. :-)
The little LED are pretty bright and I remember some broadcast equipment
used light pipes.
OK now I am going to get silly but this is time-nuts. I think light pipe
and fiber optics are two different terms.
Yes they both pass light. But a fiber optic is a precision glass or plastic
waveguide. A light pipe is a bulk piece of plastic that is not a wave guide
in respect to the accuracy of the walls.
Oh I am so doomed now that I said that.
Regards
Paul
WB8TSL
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
I finally took an ineterest in this thread, because I have needed (rather
infrequently) a way to get LED light from a PCB to a front panel. I Googled
"flexible light pipe" (no quotes in the Google search) and got loads of hits
for them. So, I guess they're called "pipes" after all. And they're
stocked at Mouser, in various sizel and lengths. How quaint!
Check out Mouser's catalog page at
http://www.mouser.com/catalog/catalogusd/647/186.pdf. There's probably
more, but this was as far as I went.
Cheers,
Dave M
Don Latham wrote:
actually, Magritte had it: “this is not a pipe”
Don
On Dec 5, 2014, at 8:01 AM, Chuck Harris cfharris@erols.com wrote:
The OP said he couldn't find anything applicable when he was
looking for "light pipe". So, I offered him a suggestion for
why. Ultimately, we are talking about locating something
using a search engine.
The public has taken to the high tech sounding term "fiber optic"
to describe what used to be called a light pipe. If it is thin,
and flexible, and moves light from one location to another, it
will be known to most people as "fiber optic".
As an example, sitting here on my workbench is a light that I use
to illuminate objects under my Olympus stereo microscope. It is
made by Nikon, and has the following words inscribed on its panel:
"NIKON, Inc. MKII Fiber Optic Light"
Do you imagine that it is a precision glass or plastic waveguide,
or just a flexible light pipe?
-Chuck Harris
paul swed wrote:
That is a good suggestion. But I fall into the camp. "Not really
that important now."
At least not to get me to pull it out of the rack. :-)
The little LED are pretty bright and I remember some broadcast
equipment used light pipes.
OK now I am going to get silly but this is time-nuts. I think light
pipe and fiber optics are two different terms.
Yes they both pass light. But a fiber optic is a precision glass or
plastic waveguide. A light pipe is a bulk piece of plastic that is
not a wave guide in respect to the accuracy of the walls.
Oh I am so doomed now that I said that.
Regards
Paul
WB8TSL
On 5 Dec 2014 20:05, "Dave M" dgminala@mediacombb.net wrote:
I finally took an ineterest in this thread, because I have needed (rather
infrequently) a way to get LED light from a PCB to a front panel. I
Googled "flexible light pipe" (no quotes in the Google search) and got
loads of hits for them. So, I guess they're called "pipes" after all.
I can't help feeling that the name(s) of the device(s) that will allow one
to get light from an LED on a PCB to a front panel is a bit off-topic. I
think it is fair to say we have ascertained that different people call them
by different names, and searching using Google with different names will
likely bring benefits over searching with one name.
IMHO, we should close this particular part of the thread.
Dave