【摘要】 以叠氮基聚乙烯醇为感光体系，群青为颜料，采用粉浆曝光法制备蓝色滤光膜．探讨了滤光膜的厚度、颜料的含量等因素对滤光膜性能的影响．实验结果表明，与空白玻璃板相比较，涂膜玻璃板的对比度有很大的提高更多还原

【Abstract】 The contrast of color picture tube was improved by using a color Cathode Ray Tube filter. The blue filter was prepared by using ultramarine as pigment and a novel water soluble azido poly(vinyl alcohol) as photopolymer. Compared with black glass plate contrast of the glass phate with filter was improved. A detailed study showed that filter thickness, content and dispersity of pigment great influence the optical properties of filter.更多还原