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Nice idea! > Date: Sat, 6 Feb 2010 01:28:08 +0100 > Subject: [PSUBS-MAILIST] my optronic mast idea with sketch > From: laland@artematrix.org > To: personal_submersibles@psubs.org > > Hi again, > > I'd like to share my idea of a modern WWI periscope, see my sketch > attached to this mail. > > The mast itself will not be based on hoisting in and out of the pressure > hull, but rather be a sort of pivoted jack-knife mast. > > This is made possible because the only component that will be rotating > (azimuth) is the inner sleeve, denoted 'A' on the sketch. > > This sleeve (A) will be rotated by means of an offset stepper motor > through a gear attached around the lower end of the said sleeve (A). > > Two large diameter bearings within the annulus between the sleeve (A) and > the outer tubular mast, denoted 'B' on the sketch, will support and > stabilize the sleeve (A) and its upper, rotating optics assembly, denoted > 'D' on the sketch. > > The optics is only indicated by a simple mirror, although I plan to use > proper prisms. > > The video camera, here denoted 'C' in the sketch, complete with remote > operated focus and zoom, will remain in a fixed position at all times. > > As I said, it'll only be the sleeve (A) with its external optics that > rotates around the stationary camera. > > The same sketch is also available through my ftp-server, ref > > ftp://ftp.artematrix.org/personal_submarine/optronic_mast/Rotating-Optics-WWI-Periscope.jpg > > Best regards, > Jens Laland Hotmail: Free, trusted and rich email service. Get it now. |