# Quantum camera

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• 01-22-2013, 01:58 PM
cliveh
Quantum camera
If I construct a camera with 2 slits in the focal plane curtain and call it the quantum camera. Will the picture I produce with film in the camera be different to the image projected on the focal plane without any film in the camera?
• 01-22-2013, 02:36 PM
AgX
Without film the image could be either a full image one strip or two stripes.
Depending of the setting/construction of that shutter.

But as we are in the philosophical section, I'm sure I missed the point as usual. Slow on the uptake...
• 01-22-2013, 02:56 PM
jnanian
it will be the same image even if it is an imagined camera and does not exist.

i sometimes forget to put film in a camera, i go out expose it, and process it.
it ends up being the same image on the non existent film that i thought i had.
• 01-22-2013, 03:10 PM
Alan W
Quote:

Originally Posted by jnanian
it will be the same image even if it is an imagined camera and does not exist.

i sometimes forget to put film in a camera, i go out expose it, and process it.
it ends up being the same image on the non existent film that i thought i had.

This might be the best answer I've seen on this forum,you just made my day John!
• 01-22-2013, 03:19 PM
dmb
It depends on whether the dead cat gets in the way. =^.^=
• 01-22-2013, 03:41 PM
tkamiya
No, the image will be the same except it will get double the amount of light, assuming width of the slit are the same as the single one.

The quanum double-slit experiment resulting in multiple bands require wave from photons in slot1 interfering with the same from slot2. In focal plain shutter situation, the shutter is so close to the film plane that this interference of two waves will not take place.

Thus the image is the same.
• 01-22-2013, 03:47 PM
cliveh
Quote:

Originally Posted by tkamiya
No, the image will be the same except it will get double the amount of light, assuming width of the slit are the same as the single one.

The quanum double-slit experiment resulting in multiple bands require wave from photons in slot1 interfering with the same from slot2. In focal plain shutter situation, the shutter is so close to the film plane that this interference of two waves will not take place.

Thus the image is the same.

OK, good point, so for the sake of this experiment lets put the curtain further from the focal plane.
• 01-22-2013, 03:50 PM
tkamiya
OK, for the sake of argument, I'm going to enlarge the size of photon to a basket ball size. They'll all get stuck at the slit so there will be no image.
• 01-22-2013, 03:53 PM
cliveh
Quote:

Originally Posted by tkamiya
OK, for the sake of argument, I'm going to enlarge the size of photon to a basket ball size. They'll all get stuck at the slit so there will be no image.