主管:中华人民共和国司法部
主办:司法鉴定科学研究院
ISSN 1671-2072  CN 31-1863/N

›› 2013 ›› Issue (2): 59-61.

• 鉴定实践 • 上一篇    下一篇

LED多波段光源显现人民币上潜指印的研究

蔡能斌1,徐峰2,张继云3   

  1. 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
    2. 上海市公安局松江分局
    3. 上海市公安局青浦分局
  • 收稿日期:2012-10-15 修回日期:2012-12-01 出版日期:2013-03-15 发布日期:2013-04-02
  • 通讯作者: 蔡能斌
  • 基金资助:
    公安部应用创新计划项目

Revealing the Latent Fingerprint on the Surface of RMB by LED Multi-Band Light Source

  • Received:2012-10-15 Revised:2012-12-01 Published:2013-03-15 Online:2013-04-02

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, Multi-Band Light Source , Rhodamine 6G, Latent fingerprint

Abstract: Objective Study on the technology of revealing the latent fingerprint on the surface of RMB by LED multi-band light source. Methods Using the fluorescent reagent of Rhodamine 6G to dyeing processing the latent fingerprint on the surface of RMB; Using the green light which wavelength at 520 nm output by the LED multi-band light source irradiated the samples, Observe and photograph latent fingerprints image through the 580 nm band-pass filter. Results A luminous image of latent fingerprint with bright ridges and dark background were obtained. Conclusion This method can reduce the interference of background, and improve the efficiency of detection for the latent fingerprint on the surface of RMB .