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Thin Glass Metrology Measure plane-parallel glass, less than 1 mm thick, with one measurement.

Verifire MST Interferometer System
The Verifire™ MST Multiple Surface Test laser interferometer system provides high precision measurements of surface form and transmitted wavefront of optical components and lens systems. It is the only commercial interferometer system that can measure multiple surfaces – with a single measurement.

Measuring Thin Optics

The Verifire™ MST system is able to reliably measure plane-parallel thin glass less than 1 mm thick.

Thin glass is very susceptible to environmental influences, so even small changes in vibration or air turbulence can adversely affect the data. If the front and back surfaces were measured separately, the environment could change between measurements, and there would be no way to correct for it. Therefore, it is very advantageous to be able to measure the front and back surfaces at the same time, which is why the Verifire MST system provides such a significant advantage.

The measurability of thin glass is determined by its optical thickness, which is calculated as the physical thickness multiplied by the material's index of refraction. This means that optics with a higher index can have a physical thickness than 1 mm and still be measured by the Verifire MST system.

Capable of Much More than Thin Glass Metrology

Explore these important features and capabilities of the Verifire™ MST interferometer system...

Thin Glass
Thin Glass Metrology Learn More
Homogeneity/TTV
Optical Homogeneity Interferometric Testing Learn More
IR Testing
Infrared IR interferometry testing Learn More
Large Aperture
Large Aperture Interferometer Learn More

Inquiry Form
Please use the form below to contact us with any questions you have regarding thin glass measurement with ZYGO's Verifire MST interferometer system, or interferometry in general.

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