Brian,
I delve into many things submarine with no prior knowledge of the particular device being studied.
The periscope I mentioned will not raise nor lower and would rotate with the intended use aboard but an ambient submarine.
I am sure that even in the real world the use of small cameras has come of age. These can be quite small and have differing fields of view. Take a peep hole camera for a door for instance.
I would love to be able to film what is seen thru such a scope as it breaks the water so I could share this with others at home, and the fun to be had with weekend fishermen and the tails these would tell later in the bar!
I am sure with hydraulics, one could be made to lower and stow during transits...to lean on the two arm supports while peering into the viewpiece and slowly look around.
I would have no eyepiece to speak of...only a small portable monitor on the main ships control panel.
That is a very long way of saying no...But I would be happy to share what I find along the way if your interested.
David Bartsch
From: ojaivalleybeefarm@dslextreme.com
To: personal_submersibles@psubs.org
Subject: RE: [PSUBS-MAILIST] optronic mast
Date: Fri, 5 Feb 2010 10:36:45 -0800
David,
Do you have experiance with building a periscope? or do you have any suggestions for a small one for a psub? I wouldn't mind having one that I could retract. I would have to find a sutible place for it however.
Brian
Jens,
With the camera mounted to the upmost portion of the mast and rotated with this mast, this inversion will not take place...I have in my study of actual periscope optics come across this inversion.
I think one could spend a lifetime studying this area and still not be fully satisfied with the results...You have to eventually say to your self this is simply good enough and move on.
David Bartsch
> Date: Fri, 5 Feb 2010 15:41:46 +0100
> Subject: RE: [PSUBS-MAILIST] optronic mast
> From: laland@artematrix.org
> To: personal_submersibles@psubs.org
>
> David
>
> ** My mast camera will not be this fancy but will able to be rotated to
> ** hopefully make up for any shortfall in viewing angle.
>
> I have also looked into a version using a fixed, vertical mounted video
> camera inside a tubular mast, and only rotate the external optics above.
>
> However, this method will produce the exact same effect for the observer
> as the Royal Navy submariners had to deal with in World War One: a
> periscope image that gradually turned itself upside down as it approached
> the aft direction.
>
> The funny thing, though, is that those guys protested when they were first
> introduced to a more modern periscope, since they claimed the old system
> actually helped them to always know which direction they were looking.
>
> Best regards,
> Jens Laland
>
>
>
>
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