Indicators for high performance of optical components (birefringence, stress evaluation, etc.)

State-of-the-art imaging evaluation tools and technical support

High quality is increasingly required for imaging and image display components, including the latest AR/VR optics. In this context, the measurement of birefringence distribution is increasingly being adopted as a basic performance indicator for polarization control devices, as a control item to reduce the risk of cracks and breaks under actual use conditions, and as an evaluation indicator for process quality in laser processing.

However, because birefringence is caused and influenced by multiple factors, such as material and shape, without specific knowledge the interpretation of measurement results and how to utilize them to improve product quality remain difficult, and requires expertise that we are proud to provide to our customers.

As a pioneer of surface measurement devices for birefringence, Photonic Lattice has contributed to solving problems in a wide range of markets with a high level of expertise in the course of its consistent activities from product development to market development and application development.

As a result, we do not simply sell measuring devices, but have accumulated experience that enables us to provide support from various technical aspects, such as when birefringence measurement is effective, how it is appropriate to analyze, and how to improve the quality from the results.

In addition, by taking advantage of our equipment’s ability to measure surface distribution at high speed, we can propose the development of in-line measurement equipment and total evaluation systems for mass-produced targets.

Furthermore, as a company specializing in optics, we can contribute to advanced quality improvement and problem solving by combining birefringence measurement with other technologies in integrated solutions.

For example, while using a birefringence measurement system to measure the distortion caused by laser processing, we can propose controlling the beam profile of the laser itself with a photonic crystal and measuring the temperature rise during processing with a high-precision high-speed infrared camera.
We hope that our distinctive technologies and products can be used to improve the quality of products and components in various optical fields.

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This product is very effective if evaluation with high spatial resolution is essential.With the WPA series, it is possible to measure a phase difference of about 3000 nm by selecting three different wave lengths and comparing and calculating the phase difference at each wave length.

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PA Series PA-micro / PA-micro-S

This equipment measures birefringence and phase difference with high resolution of 5 million pixels at high speed, for low phase difference with a measurement range of 0 to 130 nm. A type that can measure birefringence with microscope FOV. The included microscope can be selected either Olympus or Nikon

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Suitable for measurement of films and transparent resin products.

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The WPA-300 series provides sharper measurement by increasing the resolution of the polarization image sensor up to 5 times, while maintaining the large phase difference measurement performance of the WPA-200 series.

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