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Re: [OM] Multi coating (again)

Subject: Re: [OM] Multi coating (again)
From: "Tom Trottier" <infoanim@xxxxxx>
Date: Fri, 21 May 1999 11:08:32 -0400
With all these layers of different refractive indices, I wonder if the 
image sharpness is also affected. Taken to the extreme, perhaps some 
[thick] layers could be used to further correct the optics?
Tom

> Date: Thu, 20 May 1999 01:41:25 -0700
> From: Chris Barrett <cpbarrett@xxxxxxxxxxx>
> Subject: [OM] Multi coating (again)
...
> The ideal coating has no reflection at any wavelength. However there is
> always a compromise between the number of layers, the thicknesses and the
> choice of materials (i.e. the refractive indices, and hardness) of the
> layers. So all multicoatings tend to reflect some colour. As William
> points out, a MC lens still reflects less than a SC lens.
------------------
From: Tom Trottier, President, ACT Productions Inc.
infoanim@xxxxxx                   http://www.act.ca
+1 613 594-4829                 fax +1 613 594-8944
199 Holmwood Ave,  Ottawa, Ontario, Canada  K1S 2P3
"Make it as simple as possible, but no simpler" - Einstein

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