Quick and large amount of test by means of measuring double reflection generated by internal stress of transparent materials.

Characteristics
Quick and large amount of test by means of measuring double reflection generated by internal stress of transparent materials.
Widely used in the fields of optical glasses, glass products and transparent plastic products.

Specifications
Measurement range: 560nm
Optical-path-difference of l retardation plate: 560nm
Table glass diameter: f 150mm
Table glass diameter: f 220mm
Overall dimensions: 510mmx135mmx250mm