Re: [ATM] LWT setup questions

["Don Clement" <clement.focuser@verizon.net>]

Bernard,

IIR, wayback in the early 70's in the "Gleanings for ATM"  S&T monthly
column, there was a description of a caustic tester that used a simple
method of making precision Y-axis measurements without the need for a
precision Y-axis mechanical stage. The Y-axis measurement was made by  a
pivoted  plane parallel refractive element using a standard micrometer head
to precisely position the Y-axis image.

Don Clement
Running Springs, California

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