A film system design and preparation method for reducing chromatic aberration caused by viewing angle changes

Abstract

The invention discloses a film system design of reducing an aberration generated because of observation angle changes and a manufacturing method thereof. The design method comprises the following steps of 1) according to a product performance integration requirement and a production condition, establishing a film system thickness reasonable design scope; 2) according to product performance, carrying out film layer initial setting, forming an initial value and establishing an admittance matrix optical model; and 3) using a genetic algorithm to analyze glass surface reflection spectrums and colors of the film system under different observation angle conditions and acquiring a film system structure which has a minimum aberration when the angle changes. In the invention, repeated product debugging and performance test processes are avoided; and a design result can be rapidly acquired, product performance is optimized, product design exploitation cost is reduced and a product exploitation period is shortened.

Description

technical field [0001] The invention relates to a film system design and preparation method, in particular to a film system design and preparation method for reducing chromatic aberration caused by viewing angle changes. Background technique [0002] Improving the optical properties of materials is one of the main purposes of coating the surface of materials. Off-line low-emissivity Low-E coated glass is to use magnetron sputtering coating method to coat multi-layer films on the glass surface, so that architectural float glass has low emissivity. , sunshade and meet the requirements of architectural appearance color design, and evaluate its optical properties by indicators such as radiance, visible light transmittance, solar light transmittance, color, etc. These optical properties are the result of interference between the various layers of the film system, directly It is reflected in the transmission and reflection spectral data of the product, and the corresponding perfor...

AI Technical Summary

Problems solved by technology

[0003] Since the interference result of each film layer is determined by the optical thickness of the film layer, compared with the observation angle of 0 degrees, the optical thickness of the film layer under other observation angle conditions increases, so the interference result will inevitably change. The color obtained by the observer when the angle changes is different. In addition, for large-area coated products, the thickness of each film layer fluctuates in a large area due to the limitation of process conditions. When the viewing angle becomes larger, the fluctuation of film thickness is also enlarged. Therefore color uniformity issues are exacerbated when viewed at large angles

Images