Re: [ATM] Malacara, Flats etc... topic was "They come through for me, again"

[Richard <cnc@cncservo.co.uk>]

Hi Francis,

Wednesday, February 21, 2007, 4:11:17 PM, you wrote:

FJOR> I
FJOR> want one for a reference for a spherometer, although I am told
FJOR> that a flat is not necessary for that purpose, just a piece of
FJOR> float glass will do.

If you mean as a 45 degree semi transparent mirror for viewing
interferometer results whilst letting the monochromatic source
through, yes. If you do mean as the reference for an interferometer,
absolutely not! The reference element of an interferometer is
probably the most precise optical component ever made.

-- 

Best regards,
  Richard in the UK

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