[Information] Transmittance measurement service using a self-recording spectrophotometer

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.

The blue light cut film has the effect of suppressing the transmission of visible light, particularly light with a wavelength of 500 nm or less, compared to regular PET film. Using a spectrophotometer, we verified how the light transmittance of the blue light cut film changes under UV irradiation. The transmittance of light in the wavelength range of 350 to 400 nm decreased further due to UV irradiation. Additionally, we conducted an analysis of the reactions occurring within the film using GC-MS. [Analysis Content] ■ Light transmittance characteristics of regular PET film and blue light cut film ■ UV irradiation of blue light cut film ■ GC-MS analysis of components within the film For more details, please refer to the related products and catalogs below.