From tom@clark.phys.nwu.edu Fri Jun 27 16:27 CDT 1997 Return-Path:Received: from relay.acns.nwu.edu by belmont.astro.nwu.edu. (SMI-8.6/SMI-SVR4) id QAA07937; Fri, 27 Jun 1997 16:27:19 -0500 Received: from clark.phys.nwu.edu (clark.phys.nwu.edu [129.105.151.58]) by relay.acns.nwu.edu with SMTP (8.7.6/8.7.1) id QAA21548 for ; Fri, 27 Jun 1997 16:40:16 -0500 (CDT) Received: by clark.phys.nwu.edu (4.1/SMI-4.1) id AA16610; Fri, 27 Jun 97 16:56:46 CDT Date: Fri, 27 Jun 97 16:56:46 CDT From: tom@clark.phys.nwu.edu (Tom Renbarger) Message-Id: <9706272156.AA16610@clark.phys.nwu.edu> To: jdotson@belmont.astro.nwu.edu Subject: Re: revised optics snout design Content-Type: text Content-Length: 217 Status: RO OK, assuming that the field lens has a 0.75" open diameter, and that we want the other openings to form an F/3.5 cone, we get: Inner snout: 0.750" Middle snout: 0.947" Outer snout: 1.143" Vacuum Window: 1.429" Tom