Brian
The way I understand a real basic periscope (with regards to what is in
between the two prisms, or "90 degrees optical bends") is actually quite
identical to what happens when you look through a combination of two
telescopes pointing against each other.
You know how things looks smaller when looking the wrong way through a
telescope (or a pair of binoculars)... this will be like your lower
section of a periscope, whilst the upper section of the same periscope
would be like the other telescope, but now oriented in its proper
direction of view.
Best regards,
Jens Laland
** For a real basic periscope could one have two prisims and then lenses
on
** each end? I guess the lens part would take a bit of doing with the
** correct
** focal lenght and all. Edmunds Scientific has quite a bit of optical
** products.
**
** Brian
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