Re: Pinhole 9x12cm quest

Wayde Allen (allen@boulder.nist.gov)
Tue, 14 Oct 1997 12:46:34 -0600 (MDT)

On Tue, 14 Oct 1997, Richard Knoppow wrote:

> At 10:49 AM 10/14/97 -0600, Wayde Allen wrote:
> >On Sun, 12 Oct 1997, Tom Ferguson wrote:
> >
> >> I believe that everyone is coming up with very similar equations, simply
> >> stated differently.
> >
> >Yep, that is why I posted the derivation of the equation. There is no one
> >correct set of numbers to plug in. It is up to the guy making the pinhole
> >to decide what wavelength of light to optimize the pinhole size for.
> >
> >- Wayde
> > (wallen@boulder.nist.gov)
> >
>
> Of course, white light is also going to smear out all of those
> interference patterns anyway. So probably the pin hole should be made for
> somewhere in the middle (green) and forget trying to be too exact.

That is exactly correct. The equation(s) can only get you in the
ballpark.

- Wayde
(wallen@boulder.nist.gov)