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Placing a measurement system directly into a precision polishing system eliminates a significant amount of material handling and fixturing time. The result is highly efficient processing and far less risk of damage to optics during handling.

The challenge for in situ measurement, however, is overcoming the air flow, vibration and noise associated with such equipment.

Instantaneous measurement using 4D's Dynamic Interferometry technology, makes it possible measure despite the difficult environment of the factory floor. 4D systems can be incorporated directly into polishing equipment, providing immediate feedback for the polishing process.

 

4D dynamic laser  interferometers measure  within process equipment, for in situ process control despite vibration and turbulence.

 

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