Polariscope viewing stress in any transparent mateial with long serving life

Description

Detecting object
1. transparent glass products with complex construction.
such as : penicillin bottle, ampoule , mobile phone cover, lighting tube, solar glass ,automobile glass,sapphire, glass container , glass handicraft  
2. transparent plastic samples
plastic bottle , cosmetic bottle , beverage bottle, plastic tray, plastic film 

Specifications
Optical path difference of full-wave plate : **0nm 
Viewing field: 200mm*200mm
Measuring height:*36mm
Overall size: **0***5***0mm
Voltage: *4VDC( with a AC/DC adaptor ) 
Light source: White fluorescent lamp
Weight:8KG