| 高性能激光全息防伪标识特性参数测量系统 |
| |
| 引用本文： | 何瑾,刘铁根,孟卓,杨莉琚.高性能激光全息防伪标识特性参数测量系统[J].光学与光电技术,2008,6(2):63-66. |
| |
| 作者姓名： | 何瑾 刘铁根 孟卓 杨莉琚 |
| |
| 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： | 提出了一种高性能激光全息防伪标识参数的检测方法，利用同一束光在分束器分成的反射光和透射光光强度比例恒定的性质，实时探测衍射方向光强和标识入射光强值，通过一维线性扫描实现激光全息防伪标识衍射效率和信噪比的自动测量。实验数据表明：入射光强测量值相对误差不超过0．29％；衍射效率及信噪比的测量值最大相对误差分别不超过0．81％和2．0％，比第一代检测仪采用的方法测量精度提高近一倍。该方法降低了对光源稳定度的要求，大大降低了激光器的成本，有利于测量仪器的推广。
|
| 关 键 词： | 光电测量 全息防伪 稳定 信噪比 衍射效率 |
| 文章编号： | 1672-3392(2008)02-0063-04 |
| 收稿时间： | 2007/7/20 |
| 修稿时间： | 2007年7月20日 |
A High Performance System for Measuring the Parameters of the Holographic Anti-Counterfeiting Labels |
| |
| HE Jin,LIU Tie-gen,MENG Zhuo,YANG Li-jun.A High Performance System for Measuring the Parameters of the Holographic Anti-Counterfeiting Labels[J].optics&optoelectronic technology,2008,6(2):63-66. |
| |
| Authors: | HE Jin LIU Tie-gen MENG Zhuo YANG Li-jun |
| |
| Institution: | HE Jin LIU Tie-gen MENG Zhuo YANG Li-jun ( Key Laboratory of Opto-Electronics Information , Technical Science of MOE,College of Precision Instrument , Opto-Electronics Engineering,Tianjin University,Tianjin 300072,China ) |
| |
| Abstract: | A new method is presented to measure the characteristic parameters of the laser holographic anti-counterfeiting label, with less dependency on the stability of source light. The He-Ne laser is used as the light source. Based on the nature that one beam of light can be divided into two beams at a fixed ratio, the source light is divided into the reflex and the transmission at the fixed ratio by a beam splitter. As the label is scanned automatically, the intensities of the reflex and the diffraction are measu... |
| |
| Keywords: | photoelectric measurement holographic anti-counterfeiting stabilization SNR diffraction efficiency |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
