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Re: [ATM] 7 inch sphereical mirror

Howdy,

At optimum focus I get an RMS diameter of ~ 9 microns.  A little
parabolizing would be useful for this mirror.

-- Dave Rowe

-----Original Message-----
From: atm-bounces@atmlist.net [mailto:atm-bounces@atmlist.net] On Behalf Of
Richard
Sent: Saturday, April 12, 2008 7:00 AM
To: Dale Eason
Subject: Re: [ATM] 7 inch sphereical mirror

Hi Dale,

Saturday, April 12, 2008, 5:57:08 AM, you wrote:

DE> using OpenFringe...  The RMS error is 1/21 wave and the
DE> strehl is .92.

Zemax is considerably less optimistic. On axis spot size is 17um RMS
with a 6.7um Airy disk. On axis Strehl is 0.25.

-- 

Best regards,
  Richard in the UK

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