Half a croissant, on a plate, with a sign in front of it saying '50c'
h a l f b a k e r y
Outside the bag the box came in.

idea: add, search, annotate, link, view, overview, recent, by name, random

meta: news, help, about, links, report a problem

account: browse anonymously, or get an account and write.



Rotating camera

For 3D
  [vote for,

There is another idea for a rotating TV, but this didn't consider the camera.

A conventional camera CCD is vertically rotated through the image created by a conventional lens.

Edit: a CCD sensor has vertical axis at one end, and is rapidly rotated around this point. The axis is at the nominal focal length of the lens. As the CCD is moved, it will swing through the image created by the lens.

Some of the image will be in focus at different parts of the rotation, and some will be out of focus. The display, also rotating, but synchronised, displays 1:1 what the CCD sees.

It's a little difficult to imagine the result of very quickly overlaid images at different locations, with different focus, but maybe it will create an interesting 3D effect.

Ling, Jan 10 2015

Rotating TV rotatingTV
[Ling, Jan 10 2015]

Maybe it will create an interesting effect - not even vaguely related... Pop-up_20Sprinkler_...d_20Laptop_20Camera
[normzone, Jan 11 2015]


       Conventional wisdom says: yes. But different parts of a lens receives light from the object at slightly different angles. So, in this case wouldn't the 3D image be related to the width of the lens?
Ling, Jan 12 2015

       // missing the point about the "Rotating TV".//   

       More likely, it's my lazy thumbs not wanting to explain the detailed differences. It was related in mechanical concept.
Ling, Jan 12 2015

       // [marked-for-deletion] Bad science. Not a clue// Heh!   

       I think that I would agree that I probably didn't explain it well enough.   

       Let me try again: edited idea.
Ling, Jan 12 2015

       A little. Is that clearer?
Ling, Jan 12 2015

       OK. I see.
Ling, Jan 12 2015

       Yes, thank you.
Ling, Jan 12 2015

       A camera, with a CCD that spins around a vertical axis through its middle. One assumes a double-sided CCD.   

       So the image will be a bunch of horizontal streaks, the same sort of thing as if you rotated the entire camera, except limited to the bit in the nominal front, no ? or, how fast does it rotate.
FlyingToaster, Jan 12 2015

       I think it would need to rotate at approx 30 rps for flicker free images, but as an experiment, could run slower.   

       I don't think the image would change as much as spinning a normal camera around on its axis, at least when the CCD is nearly perpendicular.
Ling, Jan 12 2015

       hmm... drop that down to a couple hundred RPM and you'd be seeing what a Leslie speaker sounds like. (you'd need some software to fudge doppler effect in the colour spectrum, though).
FlyingToaster, Jan 12 2015


back: main index

business  computer  culture  fashion  food  halfbakery  home  other  product  public  science  sport  vehicle