Assembly of FPD Evaluation / Inspection Device

Sigma Koki offers many custom-specification products, including measurement devices for liquid crystal pretilt angles, liquid crystal viscoelasticity, anchoring energy, semiconductor laser polarization ratio, non-linear spectroperformance, polarizing filter and polarization beam splitter characteristics, and liquid-crystal-panel evaluation. Some examples are given below:

Smaller liquid crystal retardation measurement device

Used to evaluate the characteristics of smaller liquid crystals based on the Senarmont method. In its basic configuration, this device effectively measures transmission light amount, phase difference, and extinction ratio.

Device for evaluating and measuring characteristics of polarization beam splitter

Sample and receiver units can be rotated independently, enabling measurement of reflected/scattered light and the characteristics when the incident angle is altered.

Analysis software

Software for plotting data obtained by power meter and analyzing phase differences and extinction ratios.

This software can be customized depending on the customer's measurement purpose and method.

Key features of Sigma Koki products

This APAS (automatic polarization analysis system) shown in the figure to the left is yet another result of Sigma Koki's combined resources and technologies.

Light source emitting light at various wavelengths, manual or automatic precision positioning and attitude control device, mirror, polarizing plate, various types of optical elements, including calcite elements, precision base plates that secure these elements in place...