该技术要在黑白胶囊上方加一层彩色滤光片(coloured filters)，这样胶囊就能变色。
This involves adding a layer of coloured filters above the black-and-white capsules, so that they can change colour.
同时研究了膜层的误差对滤光片光谱性能的影响，表明其敏感层主要是缺陷层。
The influence of thickness error of each layer to optical character was also discussed, and the result shows that the most sensitive layer is defect-layer.
应用导纳轨迹图解方法，可以确定能诱导出滤光片最大透射率的金属层厚度。
The thickness of metal layer can be confirmed by admittance loci illustrate method.
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