Optical Flat Set

Optical flat sets are precision measuring tools used in various industries, including manufacturing, engineering, and metrology. They are commonly used for measuring the flatness and parallelism of surfaces.

An optical flat set typically consists of two optical flats, which are transparent glass or quartz plates with extremely flat and parallel surfaces. These plates are usually coated with a thin layer of a low-reflective material, such as magnesium fluoride, to minimize reflections.

To use an optical flat set, one of the flats is placed on the surface being measured, while the other flat is held above it. By observing the interference patterns formed between the two surfaces, the user can determine the flatness and parallelism of the surface being measured.

Optical flat sets are highly accurate and can measure flatness within a few millionths of an inch. They are commonly used in the calibration of precision instruments, such as surface plates, machine tools, and optical components.

In summary, optical flat sets are essential tools for measuring the flatness and parallelism of surfaces with high precision. They are widely used in industries where accuracy is crucial for quality control and precision engineering.