适用范围：

检测小尺寸的玻璃容器或加工过程中的小尺寸的塑料产品，安装及条件检测。

参数：

Crossed Nicols 法观测时，整个视野将出现黑色。样品置于观测台，存在应力的部位为明亮的白色，没有应力的部位将呈现黑色，和未置样品时同样的黑色。

Example of Appearancc vnder
树脂—流动状态	Unevenness of Film	Strain resulted from Processing
Strain and cracks in a molded article
Sample with substantially no strain The whole of a sample appears dark in blackish color similarly to the visual field.	Sample with less degree of strain Outer peripheral region of a sample appears in whitish color.	Sample with greater degree of strain Region in whitish color in the outer periphery of a sample, where strain exists, extends inwardly. Also, the whitish region appears brighter than a sample with less degree of strain.
Sample at the Reference Position/ Rotated Angle 0 X-shaped region in the transmission axis direction of a polarizer or an analyzer appears in blackish color.	Sample rotated by 45 X-shaped region appeared in sensible color remains in the same direction irrespective of the direction change of a sample. Due to this, the pattern of strain varies.	Sample rotated by 90 Pattern of strain in a sample is same as that of a sample at the reference position.