Specifications : Viewing field: 200* 200 mm Overall size: 300*335*330 mm Main voltage:220 V AC Measuring space height : 234.5 mm Light source: LED ( White and Sodium light) Gross Weight : 10KG Packed in 1 carton : 45*45*32cm Application area This Polariscope is designed to observe and analyze the distribution of internal strain in transparent plastic preforms. It has been widely used in the quality control of various plastic rough processing products and finished bottles. Features 1.Defects invisible to the naked eyes such as crystallization or other common defects become visible ; 2.When the plastic preform is placed on the Polarizer at a 0�° , the colored birefringent stripes at the edge of the preform can be observed; 3.When the plastic preform is placed on the polarizer at 45�° , black birefringence stripes in the central part of the preform will be displayed; 4. In addition to white light, Sodium light is also used to test colored preforms or finished bottles;
