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A Digital Readout Caustic Tester
An Accurate Multi-Purpose Tester
Additional Project Photographs

This short article shows some details of T. Lum's digital readout Caustic tester.  Like all Caustic tester designs, this one can also be used for many of the other common ATM mirror testing methods.  Built to a high degree of accuracy, it may be used to perform the Caustic, Foucault, Wire, and Ronchi tests.  (The text of this article is extracted from an email from Mr. Lum.  Eventually, a detailed construction article will replace this one.)

...Incomplete article  Photo was not downloaded.  more to come later...
February 2001

 

 

 

Article: A Digital Readout Caustic Tester

Photographs by:
John D. Upton
Georgetown, Texas

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