1.Observation range and sample size: The observation range is the range of the field of view, and the sample size can be larger than the range of the field of view. As long as the observed part can be placed in the field of view, it can be observed

2.Measurement unit: If the degree is in degrees, you can multiply it by a coefficient and convert it to nanometer values yourself

SZY-150.Portable stress gauge (qualitative)

The glass product stress tester is an instrument that uses the principle of polarized light interference to check the internal stress or crystal birefringence effect in glass. Due to the presence of sensitive color plates, this instrument can qualitatively or semi quantitatively measure the internal stress of glass based on the interference color sequence in the polarization field. Therefore, this instrument is suitable for optical instrument factories, glass factories, and glass product factories to measure the stress of optical glass, glass products, and other optical materials.

Technical Parameter

Polarizer aperture: 15O millimeters

Diagonal size of glasses polarizer: 48mm