[time-nuts] LTE-Lite

paul swed paulswedb at gmail.com
Fri Dec 5 09:41:35 EST 2014

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.

On Fri, Dec 5, 2014 at 9:10 AM, Dr. David Kirkby (Kirkby Microwave Ltd) <
drkirkby at kirkbymicrowave.co.uk> wrote:

> On 5 Dec 2014 13:19, "Chuck Harris" <cfharris at 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.
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