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  6. Evaluation of transmittance and yellowness (yellow degree) using a color difference meter.

Evaluation of transmittance and yellowness (yellow degree) using a color difference meter.

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last updated:Jun 26, 2025

アイテス
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Digitizing transparency and color into numerical data! Objectively evaluating transparency rate and yellowing degree!

This introduction covers the evaluation of transmittance and yellowing (yellowness) using a color difference meter. By making the product's constituent materials transparent and richly colored, necessary functional characteristics, artistic qualities, and design elements for the product's application are imparted. However, yellowing (discoloration) can occur due to the environment in which they are used, potentially compromising those characteristics. By quantifying transparency and color not through human perception but as numerical data, objective evaluation becomes possible. 【Overview】 ■ Principles of color difference measurement and acquired data (XYZ Yxy color space) - Light emitted from a light source passes through a transparent sample, and within an integrating sphere box, data on the transmitted wavelengths (transmittance) and converted color space data are obtained. *For more details, please refer to the PDF document or feel free to contact us.

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Evaluation of transmittance and yellowness (yellow degree) using a color difference meter.

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  • Related Link - http://www.ites.co.jp/analyze/index.html
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【Measurement Examples of Transparent Resin】 ■Measurement Samples - PMMA: Acrylic - PC: Polycarbonate - PET: Polyethylene Terephthalate *For more details, please refer to the PDF document or feel free to contact us.

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[Data] Research Institute of Chemical Reaction Mechanisms - Case Study on the Causes of Material Discoloration

[Data] Research Institute of Chemical Reaction Mechanisms - Case Study on the Causes of Material Discoloration

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Total coordination from reliability testing to observation.

Total coordination from reliability testing to observation.

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Evaluation of transmittance and yellowing degree (yellowness) using a color difference meter.

Evaluation of transmittance and yellowing degree (yellowness) using a color difference meter.

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[Data] Colorimetric evaluation of resin's color system and transmittance using a color difference meter.

[Data] Colorimetric evaluation of resin's color system and transmittance using a color difference meter.

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We handle everything from reliability testing of materials to chemical analysis.

We handle everything from reliability testing of materials to chemical analysis.

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Surface analysis of discolored and altered materials using XPS (ESCA).

Surface analysis of discolored and altered materials using XPS (ESCA).

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[Data] FT-IR Analysis of Transparent Resin

[Data] FT-IR Analysis of Transparent Resin

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Evaluation of distortion and birefringence in plastic molded products.

Evaluation of distortion and birefringence in plastic molded products.

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Color evaluation of paint using a colorimeter.

Color evaluation of paint using a colorimeter.

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[Dataset] LCD Panel Analysis Dataset

[Dataset] LCD Panel Analysis Dataset

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Spectral Radiance and Chromaticity Evaluation of Liquid Crystal Displays

Spectral Radiance and Chromaticity Evaluation of Liquid Crystal Displays

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Condensation cycle test

Condensation cycle test

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Optical film light transmission characteristics

Optical film light transmission characteristics

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Optical film light transmission characteristics

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At Aites Co., Ltd., we conduct "optical film analysis." Optical films used in smartphones and other devices have various functions depending on their structure and materials. We measured the light transmittance of privacy protection films at different angles and combined cross-sectional observation with Raman analysis to investigate the mechanism of function manifestation. By investigating the transmittance characteristics of privacy protection films using angle-variable spectrophotometry, we were able to analyze the mechanism of function manifestation through cross-sectional observation and Raman analysis. At Aites, we provide consistent evaluation and analysis from material properties to the mechanisms of function manifestation.

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アイテス

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Electronic Components and Semiconductors

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Aites was established in 1993, originating from the quality assurance department of the IBM Japan Yasu office. Based on the technical expertise cultivated through cutting-edge defect analysis and reliability assurance of electronic components at the IBM Japan Yasu office, we have provided various products and services that support the development and manufacturing of semiconductors, displays, organic EL, solar cells, and electronic components to customers both domestically and internationally.

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