Re: [ATM] Inventor of Mangin mirror dies?

["Bevan Harris" <ngc2070@gmail.com>]

Thanks Richard,

It would certainly seem to refute the claim.  I've done some more
digging and found references to a searchlight design of this vintage -
as you say, by a Frenchman. A military colonel actually.   I've not
seen a specific diagram yet, but the assertion at this stage would
appear to be blown.

I tell her the news and ask if she has more information.

Cheers
Bevan

On Nov 21, 2007 7:56 PM, Richard F.L.R. Snashall <rflrs@rcn.com> wrote:
> Bevan Harris wrote:
> >
> > I've been trying to corroborate the claim, but my efforts at googling
> > are turning up a scant response.    Can anyone confirm or refute the
> > assertion?   I have no reason to disbelieve my colleague and I think
> > it would be a shame if someone who has contributed so much to the
> > field of optics should pass in obscurity.
> >
> Kingslake, in "Lens Design Fundamentals", specifies it as attributable to a
> French engineer, A. Mangin in 1876 (article reference).  That would seem
> to preclude your coworker's neighbor, if he was less than 94.
>
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