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Transmission and Reflectance Spectra and Color of Optical Thin Films Chapter 1

Article source:Zhenhua vacuum
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Published:24-04-24

Transmission and reflectance spectra and colors of optical thin films are two characteristics of thin film devices that exist at the same time.

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1. Transmission and reflectance spectrum is the relationship between reflectance and transmittance of optical thin film devices with wavelength.
It is characterized by:
Comprehensive – see the reflectance and transmittance distribution characteristics of the whole wavelength band.
Accurate – reflectance and transmittance values for each wavelength are accurately presented.
Unique – standardized measurement and expression without ambiguity.
2. Color is the visual characteristic that a thin film device presents to the human eye when illuminated by a visible light source.
3. It is characterized by:
Intuitive – is the human eye to see the real feeling (sensibility).
One-sided – only show the thin film device on the visible light transmission, reflection characteristics.
Variable – color changes with the light: change the light source film device will change the color; vary from person to person: different people can see different color sensation;
A color multi-spectrum: the same color can correspond to different spectra.

–This article is released by vacuum coating machine manufacturer Guangdong Zhenhua


Post time: Apr-24-2024