Archived posting to the Leica Users Group, 2011/09/21

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Subject: [Leica] Prism fun
From: abridge at mac.com (Adam Bridge)
Date: Wed, 21 Sep 2011 12:13:49 -0700
References: <7E72ED03-D3EC-411C-A2BE-E89C6C2D2251@yahoo.co.uk>

It works best to have the light coming from a point source and then refining 
it with a slit to allow a band of light to enter the prism.

But it's really not rocket surgery and prisms do work just fine as my 
kitchen window demonstrates every morning with rainbows floating around the 
wall from morning sun shining through prisms of various configurations.

It's a pretty wonderful thing to switch from the time to the frequency 
domain through a piece of glass!

Adam

On 2011 Sep 16, at 4:28 AM, Peter Cheyne wrote:

> Tomorrow I'll give an 8 year old boy a gift of a small prism , so he can 
> have fun making rainbows.  However, after playing with it myself for a 
> couple of hours, I can't even get a spectrum myself.
> I imagined it wouldn't be too hard to recreate the cover of Pink Floyd's 
> Dark Side of the Moon.
> 
> Has anyone done this before?  Any tips to pass on to the young lad?
> 
> Thanks,
> 
> Peter
> 
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In reply to: Message from geordiepete211 at yahoo.co.uk (Peter Cheyne) ([Leica] Prism fun)