Re: Nikon microscope/instrument


"ouroboros rex" <c-bee1@xxxxxxxxxxxxxxxxxxxx> wrote in message
news:e1luuo$kdq$1@xxxxxxxxxxxxxxxxxxx

<hbarwood@xxxxxxxx> wrote in message
news:1144895524.208388.40500@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
In a weak moment, I bought a nikon "device" off LabX.
Unfortunately,
there is absolutely nothing to identify what it is. No name,
other than
Nikon, no number, no identifying marks. labels, etc. I'm
stumped. It is
obviously some sort of microscope/optical device and very
well made. It
was once part of a medical lab according to an old inventory
sticker.
There is a holder mounted over an inverted objective
(possibly a
condensor?) that projects an image up to a screen with a
circular
degrees pattern. Projected onto the circular pattern is a
green
cross-like projection that rotates as you rotate a 0-360
degree knob
below the objective. Below the circular pattern is another
small screen
that has a scale from +25 to -25. The green cross is only in
focus at
the 0 position of this scale.

If any of this rings a bell with anyone, please let me know
what this
thing is.

Thanks.

Henry Barwood
hbarwood@xxxxxxxx


Sounds vaguely like an old measurement microscope for
machinists..?
Judging by your description, when I was a kid my dad's various
quality
control magazines were filled with somewhat similar equipment.
You'd stick
a part in it and it would cast a big shadow on the screen, and
you could
measure angles, hole sizes, corner radii, etc.

O.:

I think you are talking about an optical comparator.

Regards,

Edward Hennessey


.

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