Automotive window glass has a large surface area, which cannot be measured by general desktop birefringence/residual stress measuring instruments. Scanning measurements are very slow and cannot meet practical needs. Therefore, Photonic Lattice has developed the ultra-large-area WPA birefringence measuring instrument, which customizes a large circularly polarized light source system according to customer samples to achieve high-speed measurement of large-area samples. The equipment is widely used by automotive manufacturers in Japan.

Main Features: 

• Solves the measurement of birefringence/residual stress for large-area products such as automotive window glass.

• Fast measurement speed, suitable for R&D or quality control measurements in glass factories.
• Uses three wavelengths: 523nm, 543nm, and 575nm, with a phase difference measurement range of up to 3000nm.
• Employs a wide-angle polarization area sensor to obtain measurement results in one go.
• Dedicated operating software, powerful and easy to use, facilitating analysis, comparison, and quality judgment.