Optical flats or test plates are polished surfaces that are used as references against the flatness of unknown surfaces for comparison. They use the property of interference to measure the flatness of a test surface.
In today's technologically advanced world, there are a growing number of applications where conventional machining techniques just aren't accurate enough to meet precision finishing requirements. Loose abrasive processing, a technology developed and refined by Lapmaster International over the past... (more)
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