Xref: utzoo sci.astro:11704 sci.optics:48 alt.books.technical:229 sci.bio:4418
Newsgroups: sci.astro,sci.optics,alt.books.technical,sci.bio
Path: utzoo!utgpu!cunews!bnrgate!bwdls61!pww
From: pww@bnr.ca (Peter Whittaker)
Subject: Re: Making Your Own Microscopes
Message-ID: <1991Feb15.145829.17885@bwdls61.bnr.ca>
Sender: usenet@bwdls61.bnr.ca (Use Net)
Organization: Bell-Northern Research, Ltd., Ottawa, Ontario, Canada
References: <7991@exodus.Eng.Sun.COM> <1991Feb14.051740.14508@ms.uky.edu> <1991Feb15.004101.10578@ux1.cso.uiuc.edu>
Date: Fri, 15 Feb 91 14:58:29 GMT

In article <1991Feb15.004101.10578@ux1.cso.uiuc.edu> mcdonald@aries.scs.uiuc.edu (Doug McDonald) writes:
>
>In article <7991@exodus.Eng.Sun.COM> fiddler@concertina.Eng.Sun.COM (Steve Hix) writes:
>>
>>As to making more sophisticated microscopes, you could probably develop a 19th-
>>century-Zeiss type microscope from that start pretty easily.  That would be
>>about the same scale of difficulty as making a small refractor, but smaller.
>>
>
>You could also make a Cassegrain reflecting microscope easily: 
>It uses one large concave mirror and one small convex one, both spherical.
>I have successfully made these from commercial mirrors. These
>can get to numerical apertures of roughly 0.5.

Pretty picture deleted......

I don't mean to be a grinch, and this is admittedly an alt. group, but
telescope and microscope design is not appropriate here....  


--
Peter Whittaker      [~~~~~~~~~~~~~~~~~~~~~~~~~~]   Open Systems Integration
pww@bnr.ca           [                          ]   Bell Northern Research 
Ph: +1 613 765 2064  [                          ]   P.O. Box 3511, Station C
FAX:+1 613 763 3283  [__________________________]   Ottawa, Ontario, K1Y 4H7