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​Optical scattering measurement equipment

Opticattering Scattering 측정 장비

Optical Scattering characteristic evaluation

Evaluation of optical scattering characteristics is the process of measuring and analyzing the phenomenon in which the direction or intensity changes when light interacts with a material. There are several methods for evaluating optical scattering properties. Optical scattering properties are determined by the microscopic structure on the surface or inside the material, which affects its optical quality or functionality.

For example, optical plates in automotive HUDs increase optical scattering, reducing resolution. Therefore, quantitative evaluation of optical scattering properties plays an important role in understanding and improving the properties of materials. Various techniques and equipment have been developed for evaluating optical scattering properties. We provide optical scatterometry equipment and measurement services. They precisely measure optical scattering data such as reflectance, transmission, absorption, and BSDF (surface scattering), which can be leveraged in optical design software such as ASAP, LightTools, Speos, and LucidShape.

Evaluation of optical scattering properties helps determine the optical properties of materials, thereby improving their performance or giving them new functions. If you would like to know more about optical scattering property evaluation, please refer to the link below.


Conoscopic BSDF


BSDF stands for Bidirectional Scattering Distribution Function and represents the scattering distribution by angle for reflection and transmission.  Conoscopic method is a method that can measure the scattering characteristics of a sample with a single scan. The advantage of the conoscopic BSDF system is that it can improve problems such as wide-angle measurement, optical system alignment, and measurement time.


Goniometric BSDF

The goniometric bsdf system is a device that mounts/controls a light source and sensor on a rotating mechanism and measures the angle-dependent distribution of scattered light. For example, specular isotropic scattering materials such as metals and pearls have characteristics where the light intensity changes significantly and the color changes depending on the angle of incidence or observation of light, so a system with a high dynamic range is required.


Spectro Haze meter
Spectro Haze meter

The spectro haze system is a device that measures the transmittance and turbidity of transparent or translucent samples by wavelength. Transmittance is the proportion of light that passes through the sample, and turbidity is the proportion of light scattered by the sample. For example, it can be used to evaluate the optical properties of displays, glass, plastic, film, solar cells, etc., to analyze emotional image quality, and to perform ultra-precision processing.

Spectroscopic BSDF

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