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屏蔽可见光、高透红外光的IR油墨原理简介如下:通过对玻璃、PMMA、PET、PC等透明材料的IR孔印刷红外高透过率IR油墨(红外油墨),由于IR黑色油墨遮挡了低于近红外线波长的光线,从而防止了其他波长光线所产生干扰而引起误操作。红外信号激发是因为通过滤光器的红外线在传感器处受光后,转化为光电信号,达到一定条件时启动红外光控制开关实现工作状态2438。在日常生活中,我们用手机接听电话的时候,耳朵贴近手机屏幕,屏幕就会变暗,离开耳朵屏幕就又亮了,起作用的是IR孔上涂的那层IR油墨。
丝印油墨中的IR油墨也称为IR红外透明油墨,是可以使IR(红外光线)透过、并能屏蔽可视光(用眼睛可以看到的光)、紫外线(例如太阳光中比可见光波长小的部分光)的油墨。黑色IR油墨主要用于各种电子数码产品、光电材料和红外传输滤光材料中。
红外透明色粉BZH做出黑色IR油墨红外透过率高达850纳米处85%、940nm处90%左右,是我们下游IR油墨厂实测反馈,仅供参考。所以请您在使用前购样IR色粉实测以确定在您体系中和现有技术水平下的红外透过率135。实际应用中元肃的红外IR黑色粉BZH系列材料具有浓度高、耐温且易溶,用于可见光截止且近红外透过涂层着色,推荐用于IR油墨、光学胶及透明滤光树脂材料着色。
实际应用中IR油墨透过率一般使用透光率测试仪来检测,以对IR油墨孔透过率进行可见光、红外线的具体量化确认9982,适用于手机屏、LED显示屏、强化玻璃及镜片、光学胶、涂层油墨、镀膜镜片等材料的透过率测量。
现在丝网印刷油墨包括IR油墨下游使用者对红外光IR透过率在850nm和940nm处要求越来越高,一般需在近红外线波长850nm处红外透光率在85%左右,在940nm处红外透过率在90%左右。上面是对IR透明色粉和红外油墨的基本编辑,后面元肃还会对IR油墨使用中遇到的问题进行总结与分析,欢迎大家交流及指正。
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