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| LED多波段光源显现人民币上潜指印的研究 | |
| 引用本文： | 蔡能斌,徐峰,张继云.LED多波段光源显现人民币上潜指印的研究[J].中国司法鉴定,2013(2):59-61. |
| 作者姓名： | 蔡能斌 徐峰 张继云 |
| 作者单位： | 1. 上海市公安局物证鉴定中心,上海市现场物证重点实验室,法医物证学现场应用技术公安部重点实验室,上海200083 2. 上海市公安局松江分局刑事科学技术研究所,上海,201600 3. 上海市公安局青浦分局刑事科学技术研究所,上海,201700 |
| 基金项目： | 公安部应用创新计划项目 |
| 摘 要： | 目的研究显现、提取遗留在人民币上潜在指印的方法。方法采用荧光试剂罗丹明6G对人民币进行染色处理,以LED多波段光源输出的波长为520nm的绿光照射检材,透过580nm的带通型干涉滤光镜观察指印的显现效果,并拍照提取。结果获得亮纹线暗背景的指印图像,指印纹线清晰,反差良好,特征丰富,具备良好的检验鉴定条件。结论 LED多波段光源输出的波长为520nm的绿光与罗丹明6G染色指印的吸收特性吻合,是显现、提取遗留在人民币上潜在指印的良好光源。 |
| 关 键 词： | 多波段光源 罗丹明6G 潜在指印 |
Visualizing Latent Fingerprints on RMB by LED Multi-band Light Source |
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| CAI Neng-bin,XU Feng,ZHANG Ji-yun.Visualizing Latent Fingerprints on RMB by LED Multi-band Light Source[J].Chinese Journal of Forensic Sciences,2013(2):59-61. | |
| Authors: | CAI Neng-bin XU Feng ZHANG Ji-yun |
| Institution: | 1.Shanghai Key Laboratory of Criminal Scene Evidence,Key Laboratory of Forensic Evidence and Scene Technology,Ministry of Public Security;Institute of Forensic Science,Shanghai Public Security Bureau,Shanghai 200083,China;2.Institute of Forensic Science,Songjiang Branch of Shanghai Public Security Bureau,Shanghai 201600,China;3.Institute of Forensic Science,Qingpu Branch of Shanghai Public Security Bureau,Shanghai 201700,China) |
| Abstract: | Objective To study the technique of revealing latent fingerprints on RMB by LED multi-band light source.Method RMB samples bearing latent fingerprints were dyed with a fluorescent reagent of Rhodamine 6G;then irradiated by green light at wavelength of 520 nm emitted by LED multi-band light source.The latent fingerprint images were observed through the 580 nm band-pass filter and photographed.Result luminous images of latent fingerprints with bright ridges and dark background were obtained.Conclusion The green light at wavelength of 520 nm emitted by LED multi-band light source is well absorbed by the latent fingerprints dyed with Rhodamine 6G and good for revealing latent fingerprints on RMB. |
| Keywords: | multi-band light source Rhodamine 6G latent fingerprint |
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