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New Product Express - Alignment Film Angle Measuring Instrument

The alignment film angle measuring instrument independently developed, designed and produced by PTC Optical Instrument has been successfully launched.


By manually rotating a stage with a dial, the device can measure the axis angle generated during the stretching process of high transparency films such as alignment film. Such film products will also form a certain amount of internal stress during the stretching process. And will form a stable phase retardation in the polarization field, hence the polarization field will change to a certain extent. Combined with the light intensity change information after passing through the analyzer component, the axial angle value of the alignment film can be calculated.


Application field: high transmittance optical film such as alignment film


Advantages: it replaces the previous method of manually measuring the axis angle with an affordable cost, and reduces human visual errors.


The energy change curve during the 360-degree rotation of the alignment film in the polarizing field is as below :

(take a 0° alignment film as an example):



New Product Express - Alignment Film Angle Measuring Instrument

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No.581, Hengchangjing Road, Zhoushi Town, Kunshan City, Jiangsu Province, China
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No.581, Hengchangjing Road, Zhoushi Town, Kunshan City, Jiangsu Province, China
sales@ptcstress.com 86-512-57925888