| 激光全息防伪标识参数测量方法 |
| |
| 引用本文： | 孟卓,刘铁根,江俊峰,何瑾.激光全息防伪标识参数测量方法[J].纳米技术与精密工程,2007,5(3):173-176. |
| |
| 作者姓名： | 孟卓 刘铁根 江俊峰 何瑾 |
| |
| 作者单位： | 天津大学精密仪器与光电子工程学院,光电信息技术科学教育部重点实验室,天津,300072 |
| |
| 摘 要： | 针对激光全息防伪标识的重要光学特性参数中衍射效率和信噪比的测试要求，提出了一种简便、可靠的自动测量方法．通过采用步进电机驱动的丝杠传动带动样品进行一维位移扫描，大光敏面的光电探测器将光强转化为电压信号，计算机采集并获得扫描时的光强分布曲线，通过对该曲线计算分析可得到标识的衍射效率及信嗓比．
|
| 关 键 词： | 全息防伪 彩虹全息 衍射效率 信噪比 |
| 文章编号： | 1672-6030（2007）03-0173-04 |
| 修稿时间： | 2007-02-28 |
Method of Measuring Parameters of Laser Holographic Labels for Anti-Counterfeit |
| |
| MENG Zhuo,LIU Tie-gen,JIANG Jun-feng,HE Jin.Method of Measuring Parameters of Laser Holographic Labels for Anti-Counterfeit[J].Nanotechnology and Precision Engineering,2007,5(3):173-176. |
| |
| Authors: | MENG Zhuo LIU Tie-gen JIANG Jun-feng HE Jin |
| |
| Affiliation: | Key Laboratory of Opto-Electronics Information and Technical Science of Ministry of Education, School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China |
| |
| Abstract: | A simple and credible method was proposed to measure the diffraction efficiency and SNR of laser holographic labels for anti-counterfeit automatically. The stepper motor drives the lead screw for scanning the label of one dimension, while the photoreceiver with wide photosensitive area transforms optical intensity signals into voltage signals. The diffraction efficiency and SNR of the label can be obtained by analyzing and computing the curve of the optical intensity via the computer. |
| |
| Keywords: | holographic anti-counterfeit rainbow hologram diffraction efficiency SNR |
| 本文献已被 维普 万方数据 等数据库收录！ |
