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Re: [ATM] History of moving mirrors for Schmidt Cassegrains.

To: "Bob May" <bobmay@nethere.com>, "atml" <atm@atmlist.net>
Subject: Re: [ATM] History of moving mirrors for Schmidt Cassegrains.
From: Gary Seronik <gseronik@netway.com>
Date: Tue, 13 Apr 2004 17:23:40 -0400
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At 10:12 AM 4/13/2004 -0700, Bob May wrote:
>Designed for Celestron as a way to get a very large focal range.  The basic
>design was then copied by Bausch and Lomb and then Meade (apparently no
>patent on the method?) 

Of course the very first moving-mirror focusing mechanism was on the very
first Newtonian (Isaac's), so a patent on the method might be a little
tough to defend.

Gary

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Follow-Ups:
- Re: [ATM] History of moving mirrors for Schmidt Cassegrains.
  - From: "Don Clement" <clement.focuser@verizon.net>

References:
- [ATM] Source for Dental Stone
  - From: "Robert Turner" <rbturner@charter.net>
- Re: [ATM] Source for Dental Stone
  - From: "Donald \"Don\" Ware" <mimas@charter.net>
- Re: [ATM] Source for Dental Stone
  - From: "Bob May" <bobmay@nethere.com>
- [ATM] Source for Dental Stone
  - From: "Dan & Barb" <sunshine92@insightbb.com>
- [ATM] History of moving mirrors for Schmidt Cassegrains.
  - From: "Lawrence D. Lopez" <lopez@mv.mv.com>
- Re: [ATM] History of moving mirrors for Schmidt Cassegrains.
  - From: "Bob May" <bobmay@nethere.com>

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