It is broadly applied in optical glass, glass product and transparent plastic industry to check products rapidly and vastly and solve many complicated questions that cannot be practically through mathematical manipulation.

Dial reads directly

Measuring scope of stress   under 560nm (A level interference color)

Optical path difference of full-wave plate    560nm

Effective aperture of polarization analyzer   Φ150nm

Effective aperture of tabletop glass            Φ220nm

Maximum height of measurable sample     250mm

Illuminant                                                 12/100W incandescent lamp

Power supply                                           AC220V±22V; 50Hz±1Hz

Weight (net)                                            21kg