紫外パルスレーザーによる紙上潜在指紋の可視化 Visualization of Latent Fingerprints on Papers Using a Ultra-violet Pulsed Laser

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We have studied inherent fluorescence spectra of fingerprints and various papers in the deep UV region with a nanosecond pulsed laser system and have visualized latent fingerprints on papers with the time-resolved fluorescence imaging method. The excitation wavelength is 230 nm and 280 nm. Fingerprints emit fluorescence from 300 nm to 500 nm. Since papers also emit fluorescence above 400 nm and it is quite strong, it is necessary to suppress paper fluorescence using filters for imaging latent fingerprints. For printed papers, inks or toners often emit fluorescence. By using appropriate filters, latent fingerprints on papers were visualized for all white and printed papers examined. We have also studied absorption images of fingerprints and obtained clearest images with 215-nm illumination for latent fingerprints on white papers.

収録刊行物

  • 可視化情報学会誌. Suppl.  

    可視化情報学会誌. Suppl. 26(2), 169-172, 2006-09-15 

    The Visualization Society of Japan

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各種コード

  • NII論文ID(NAID)
    10018247365
  • NII書誌ID(NCID)
    AA11907562
  • 本文言語コード
    JPN
  • 資料種別
    SHO
  • ISSN
    09164731
  • NDL 記事登録ID
    8516933
  • NDL 雑誌分類
    ZM35(科学技術--物理学)
  • NDL 請求記号
    Z15-431
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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