JPS61154538A - Detection of fingerprint - Google Patents
Detection of fingerprintInfo
- Publication number
- JPS61154538A JPS61154538A JP59280889A JP28088984A JPS61154538A JP S61154538 A JPS61154538 A JP S61154538A JP 59280889 A JP59280889 A JP 59280889A JP 28088984 A JP28088984 A JP 28088984A JP S61154538 A JPS61154538 A JP S61154538A
- Authority
- JP
- Japan
- Prior art keywords
- fingerprint
- attached
- solution
- reagent
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、鑑識技術分野における検体（指紋付着対象物
）の指紋を検出する技術に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a technique for detecting a fingerprint on a specimen (an object to which a fingerprint is attached) in the field of forensic science.
従来の潜在指紋検出方法として０通常は（１）アルミ等
の粉末を指紋隆線に付着させて。Conventional latent fingerprint detection methods usually include (1) attaching powder such as aluminum to the fingerprint ridges;
付着対象と粉末との色差を利用して検出する方法、
（２）指紋成分中のアミノ酸や塩分に化学薬品を反応さ
せて呈色させる方法。(2) A method that uses chemicals to react with amino acids and salts in fingerprint components to create color.
（３）指紋成分中の脂肪分にヨードガスを反応させて呈
色させる方法、
の各方法が用いられているが、長期間経過した指紋や新
建材などの特殊処理を施した表面に付着した指紋等に対
し検出能力が低い等の問題点が指摘されており、これを
解決する方法として、レーデ光照射に生ずる蛍光を利用
する方法が例えば次の文献１）、２）に提案されている
。(3) A method of reacting iodine gas to the fat in the fingerprint component to give it color. For example, the following documents 1) and 2) propose a method to solve this problem by using fluorescence generated by Raded light irradiation.
１）イーΦアール・メンツエル：フイデンティフィケー
シ＊７ ニューズ （Ｅ、Ｒ，Ｍｅｎｚｅｌ：Ｉｄｅ
ｎｔｉｆｉｃａｔｉｏｎ Ｎｅｗｓ、Ｉｎｔｅｒｎａｔ
ｉｏｎａｌ Ａｇ５ｏｃｉａ−ｔｉｏｎ ｆａｒ Ｉｄ
ｅｎｔｉｆｉｃａｔｉｏｎ、 Ｖｏｌ、 ＸＸＸｍ
、 Ｎｏ、９（Ｓｅｐｔｅｍｂｅｒ ｌ ９ ８
３ ） ）２）アール−デー参オルセン：アイデンテ
ィフィケ’／２７ ニューズ （Ｒ，Ｄ、０ｌｓｅｎ
： Ｉｄｅｎｔｉ−ｆｉｃａｔｉｏｎ Ｎｅｗｓｊｎ
Ｌｅｒ−ｎａｔｉｏｎａｌ Ａｓ５ｏｃｉａｔｉｏｎ
ｆｏｒ Ｉｄｅｎｔｉｆｉｃａｔｉｏｎ、 Ｖｏｌ
、 ＸＸＸＩ’Ｖ 、 Ｎｏ、４（Ａｐｒｉ’＋
１９８４） ）
このようなレーザ蛍光法としては、
ａ）付近指紋にそのままレーザ光を照射し、指紋成分（
リボフラビン等）の発光をとらえる方法。1) E, R, Menzel: Ide
ntification News, International
ional Ag5ocia-tion far Id
entification, Vol, XXXm
, No. 9 (September l 9 8
3) )2) R, D, Olsen: Identifique'/27 News (R, D, Olsen
: Identity Newsjn
Ler-national association
for Identification, Vol.
, XXXI'V, No, 4 (Apri'+
(1984)) This type of laser fluorescence method involves a) directly irradiating the nearby fingerprint with laser light, and detecting the fingerprint components (
A method to capture the luminescence of riboflavin, etc.
ｂ）指紋成分中のアミノ酸、尿素等と反応し蛍光物質と
なる試薬と反応させた後、レーザ光を照射し、その発光
をとらえる方法。b) A method of reacting with a reagent that reacts with amino acids, urea, etc. in fingerprint components to become a fluorescent substance, then irradiating it with laser light and capturing the emitted light.
Ｃ）蛍光性を有する色素溶液に接触させる方法。C) A method of contacting with a fluorescent dye solution.
の３方法がある。There are three methods.
上記ｂ）、ｃ）の方法は指紋付着対象物の発光がある場
合、ａ）に比して、より有効ではあるが、試薬または色
素溶液を塗布または噴霧する方法については次のような
問題点があった。Methods b) and c) above are more effective than method a) when the object to which the fingerprint is attached emits light, but the method of applying or spraying the reagent or dye solution has the following problems. was there.
上記参考文Ｍｌ）、２）の提示している方法は薬液に浸
漬または噴霧する方法であり、下記のごとき難点があっ
た。The method proposed in the above references Ml) and 2) involves immersion or spraying in a chemical solution, which has the following drawbacks.
（ｉ）色素溶液に浸漬した場合、灯象面に必要以上に多
く付若し、指紋隆線以外の部分からの発光が強い。(i) When immersed in a dye solution, an unnecessarily large amount of dye is attached to the light surface, and light emission is strong from areas other than the fingerprint ridges.
色素溶液に浸漬した場合、溶液が指紋の押捺された対象
物に多量に付着し、これに光照射した場合指紋隆線以外
の部分も隆線と同等に発光し指紋発光像が明確にとらえ
られない場合が多い。When immersed in a dye solution, a large amount of the solution adheres to the object imprinted with a fingerprint, and when the object is irradiated with light, areas other than the fingerprint ridges also emit light in the same way as the ridges, making it possible to clearly capture the fingerprint luminescent image. There are many cases where there is no.
（ｉｉ）浸漬、噴霧の条件を一定とすることが必要で、
過多に付着した場合、指紋成分１反応生成物が流されて
しまう場合がある。(ii) It is necessary to keep the dipping and spraying conditions constant;
If too much is attached, the fingerprint component 1 reaction product may be washed away.
浸漬、噴霧の条件を一定とするためには浸漬の場合、浸
漬時間、噴霧の場合噴霧量を一定としなければならず、
実施時に手間がかかる。また過多に付着した場合、対象
物に付着した指紋成分または反応生成物が溶液中に溶解
、流出し、結果として指紋発光像が不鮮明となる場合が
ある。In order to keep the conditions of immersion and spraying constant, the immersion time in the case of immersion and the amount of spray in the case of spraying must be constant.
It takes time to implement. In addition, if too much of the fingerprint is attached, the fingerprint components or reaction products attached to the object may dissolve and flow out into the solution, resulting in the fingerprint luminescent image becoming unclear.
（ｉｉｉ）溶液を扱わざるを得ず、また噴霧機を必要と
するため実用上不便である。(iii) It is practically inconvenient because a solution must be handled and a sprayer is required.
指紋検出実施現場で液体を扱わざるを得ず、不便である
と同時に対象物を不必要に汚す場合がある。また噴霧す
る場合、噴霧機を必要とするため簡便でないと同時に設
備費を要する。Liquids must be handled at the fingerprint detection site, which is inconvenient and may unnecessarily stain the object. Furthermore, when spraying, a sprayer is required, which is not simple and requires equipment costs.
本発明はこれらの問題点を解決し、簡便、安価で安定し
た検出結果を得る検出方法を提供するものである。The present invention solves these problems and provides a detection method that is simple, inexpensive, and provides stable detection results.
以下に上記問題点を解決する本発明の技術手段を説明す
る。The technical means of the present invention for solving the above problems will be explained below.
一般にゼラチン質膜は試薬１色素の最も一般的な溶媒で
あるメタノール、エタノール、蒸留水、アセトン等に対
し不溶性であり、またその内部に溶液を適量含有させる
ことができる０本発明はゼラチン質膜を利用し、下記の
要領で指紋検出を行うものである。すなわち。In general, gelatin membranes are insoluble in methanol, ethanol, distilled water, acetone, etc., which are the most common solvents for reagent 1 dyes, and an appropriate amount of solution can be contained inside the gelatin membrane. Fingerprint detection is performed using the following procedure. Namely.
（１）適量の試薬または色素溶液を含有させたゼラチン
質膜を用いる。(1) A gelatin membrane containing an appropriate amount of reagent or dye solution is used.
試薬としては、アミノ酸の蛍光試薬である７−クロロ−
４ニトロベンゾ−オキサ−１，３−７ゾル（溶媒：メタ
ノール）、オルトフタルアルデヒド（溶媒：蒸留水）、
尿素の蛍光試薬であるパラジメチルアミノシンナマアル
デヒド（溶媒：アセトン）等があり、蛍光性色素溶液と
してはローダミン６Ｇのメタノール溶液、クマリンのメ
タノール溶液等がある。これら溶液を適量（８０〜９９
重量％）含有させたゼラチン質膜を用いる。The reagent used is 7-chloro-, which is a fluorescent reagent for amino acids.
4-nitrobenzo-oxa-1,3-7 sol (solvent: methanol), orthophthalaldehyde (solvent: distilled water),
Examples include paradimethylaminocinnamaldehyde (solvent: acetone), which is a fluorescent reagent for urea, and examples of fluorescent dye solutions include a methanol solution of rhodamine 6G and a methanol solution of coumarin. Appropriate amount of these solutions (80-99
% by weight) is used.
（２）指紋付着対象面に上記のゼラチン質膜を密着させ
、試薬と指紋成分の反応、または色素による指紋部分の
染色に十分な時間保持する。(2) The above-mentioned gelatin film is brought into close contact with the surface to which the fingerprint is to be attached, and held for a sufficient time for the reaction between the reagent and the fingerprint components or the staining of the fingerprint portion with the dye.
保持する時間は試薬１色素、溶媒の種類、温度、指紋の
新旧等の条件で異なるが、ＪＩ略として試薬については
数十分〜数日、色素の場合では数分〜数十分である。The holding time varies depending on conditions such as the reagent 1 dye, type of solvent, temperature, and whether the fingerprint is old or new, but it is several tens of minutes to several days for JI reagents, and several minutes to several tens of minutes for dyes.
（３）ゼラチン質１漠を剥離した後、それぞれの反応物
質または色素溶液が蛍光を発し得るレーザ光等の励起光
を対象面に照射し、得られる発光像を撮像装置にて検出
する。(3) After peeling off the gelatinous material, the target surface is irradiated with excitation light such as laser light that can cause each reactant or dye solution to emit fluorescence, and the resulting luminescent image is detected by an imaging device.
蛍光性色素としてローダミン６Ｇを用いた実施例を示す
。An example using rhodamine 6G as a fluorescent dye is shown.
使用したゼラチン質膜は第１１４に示すようにポリエチ
レン製基板上に付いており、ゼラチン膜製造時に貼付し
であるポリエチレン製密閉膜を第２図のごとく取り外し
た後、指紋付着対象面に密着せしめる。ゼラチン質膜は
厚さ約０．５ ｍ ｍでローダミン６Ｇの０．２％エタ
ノール溶液を約９９９６含有する。The gelatin membrane used is attached to a polyethylene substrate as shown in Figure 114, and after removing the polyethylene sealing membrane attached during gelatin membrane production as shown in Figure 2, it is brought into close contact with the surface to which fingerprints are to be attached. . The gelatinous membrane is approximately 0.5 mm thick and contains approximately 9996 ml of a 0.2% ethanol solution of Rhodamine 6G.
Ｌ記ゼラチンＷＭを用いてプリント合板に押捺された指
紋を検出した結果を第３図に示す。FIG. 3 shows the results of detecting fingerprints stamped on printed plywood using L gelatin WM.
対象面へのゼラチン質膜の密着保持時間は約１０分間で
励起光はアルゴンイオンレーザ光（波長：５１４ｎｍ、
照射光密度０．１ Ｗ／ ｃ ｍ’）である。The gelatin film remains in close contact with the target surface for approximately 10 minutes, and the excitation light is argon ion laser light (wavelength: 514 nm,
The irradiation light density was 0.1 W/cm').
上述の方法によりプリント合板とに押捺された指紋の検
出を行い良好な検出結果を得ている。第３図に本発明に
よる検出結果を示し、第４図に従来法を用いた場合に不
鮮明となった検出例を示した。Fingerprints stamped on printed plywood have been detected using the method described above, and good detection results have been obtained. FIG. 3 shows the detection results according to the present invention, and FIG. 4 shows an example of detection that was unclear when using the conventional method.
本発明方法は以上のように構成されているので、常に−
” ：ｌｉ：’ 、、；、の試薬または色素を指紋と接
触させることができ、付着量が多すぎるために指紋隆線
以外の部分からの発光が強過ぎたり、指紋成分、反応生
成物が流されてしまう等の従来の問題点を解消すること
ができる。Since the method of the present invention is configured as described above, always -
” :li:',;, reagents or dyes can be brought into contact with the fingerprint, and the amount of adhesion may be too large, resulting in too strong light emission from areas other than the fingerprint ridges, or the fingerprint components and reaction products may be Conventional problems such as being washed away can be solved.
また、ｇ′ｆｆＪに作成しておいたゼラチン質膜（試薬
または色素含有）を指紋検出現場で用いることにより極
めて簡便に検出作業を行うことができる。また運搬にも
便利である。ざらに噴霧機等の装置を必要としないため
指紋検出システムとしての価格が安価となる。Further, by using the gelatinous membrane (containing reagent or dye) prepared in g'ffJ at the fingerprint detection site, the detection work can be carried out extremely easily. It is also convenient for transportation. Furthermore, since no equipment such as a sprayer is required, the price of the fingerprint detection system is low.
ｍ１図は本発明の実施例のゼラチン質膜の未使用時の斜
視図、第２図はその使用時の斜視図、第３図は本発明方
法による指紋検出結果例を示す倍率３倍の写真、第４図
は従来法による検出例を示す比較写真である。
ｌ・・・ポリエチレン製基板膜
２・・・ゼラチン質
３・・・含有溶液
４・・・ポリエチレン製密閉膜Figure m1 is a perspective view of the gelatin membrane of the example of the present invention when it is not in use, Figure 2 is a perspective view when it is in use, and Figure 3 is a photograph at 3x magnification showing an example of fingerprint detection results by the method of the present invention. , FIG. 4 is a comparative photograph showing an example of detection by the conventional method. l... Polyethylene substrate membrane 2... Gelatinous material 3... Containing solution 4... Polyethylene sealing membrane
Claims (1)
性色素を指紋部分に付着または溶解せしめた後光照射し
、該光照射により生じる蛍光を用いて指紋の蛍光像を得
るにあたり、前記試薬または色素を溶解した溶液を含有
するゼラチン質膜を指紋付着部分に接触させ、前記溶液
を十分に付着または溶解せしめた 後、ゼラチン質膜を剥離し、指紋付着面に励起光を照射
して蛍光像を得ることを特徴とする指紋検出方法。[Scope of Claims] 1. A reagent or fluorescent dye that reacts with fingerprint components to produce a fluorescent substance is attached to or dissolved in the fingerprint area, and then irradiated with light, and the fluorescence generated by the light irradiation is used to obtain a fluorescent image of the fingerprint. In this process, a gelatin film containing a solution in which the reagent or dye is dissolved is brought into contact with the fingerprint-attached area, and after the solution is sufficiently attached or dissolved, the gelatin film is peeled off and excitation light is applied to the fingerprint-attached surface. A fingerprint detection method characterized by obtaining a fluorescent image by illumination.
Priority Applications (12)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59280889A JPS61154538A (en) | 1984-12-27 | 1984-12-27 | Detection of fingerprint |
| AT85116134T ATE65322T1 (en) | 1984-12-27 | 1985-12-18 | METHOD OF CAPTURE OF FINGERPRINTS USING A LASER. |
| DE8585116134T DE3583498D1 (en) | 1984-12-27 | 1985-12-18 | METHOD FOR DETECTING FINGERPRINTS BY MEANS OF A LASER. |
| EP85116134A EP0188758B1 (en) | 1984-12-27 | 1985-12-18 | A method for detecting fingerprints using a laser |
| KR1019850009599A KR890001981B1 (en) | 1984-12-27 | 1985-12-19 | Device for detecting fingerprint by using razor |
| US06/810,988 US4708882A (en) | 1984-12-27 | 1985-12-19 | Method for detecting fingerprints using a laser and an apparatus therefor |
| CA000498089A CA1258973A (en) | 1984-12-27 | 1985-12-19 | Method for detecting fingerprints using a laser and an apparatus therefor |
| AU51583/85A AU584958B2 (en) | 1984-12-27 | 1985-12-23 | A method for detecting fingerprints using a laser and an apparatus therefor |
| US06/933,032 US4794260A (en) | 1984-12-27 | 1987-02-10 | Method for detecting fingerprints using a laser and an apparatus therefor |
| KR1019890004786A KR890002570B1 (en) | 1984-12-27 | 1989-04-11 | Method for clearing picture of finger print |
| KR1019890004785A KR890002569B1 (en) | 1984-12-27 | 1989-04-11 | Finger print detecting device by using rasor |
| AU36723/89A AU609618B2 (en) | 1984-12-27 | 1989-06-21 | A method for detecting fingerprints using a laser and an apparatus therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59280889A JPS61154538A (en) | 1984-12-27 | 1984-12-27 | Detection of fingerprint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61154538A true JPS61154538A (en) | 1986-07-14 |
Family
ID=17631353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59280889A Pending JPS61154538A (en) | 1984-12-27 | 1984-12-27 | Detection of fingerprint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61154538A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009056084A (en) * | 2007-08-31 | 2009-03-19 | Sky Science Co Ltd | Fingerprint detecting sheet and its manufacturing method |
| JP2016535264A (en) * | 2013-11-08 | 2016-11-10 | インテリジェント・フィンガープリンティング・リミテッドＩｎｔｅｌｌｉｇｅｎｔ Ｆｉｎｇｅｒｐｒｉｎｔｉｎｇ Ｌｉｍｉｔｅｄ | Skin print fluorescence analysis method and apparatus |
-
1984
- 1984-12-27 JP JP59280889A patent/JPS61154538A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009056084A (en) * | 2007-08-31 | 2009-03-19 | Sky Science Co Ltd | Fingerprint detecting sheet and its manufacturing method |
| JP2016535264A (en) * | 2013-11-08 | 2016-11-10 | インテリジェント・フィンガープリンティング・リミテッドＩｎｔｅｌｌｉｇｅｎｔ Ｆｉｎｇｅｒｐｒｉｎｔｉｎｇ Ｌｉｍｉｔｅｄ | Skin print fluorescence analysis method and apparatus |
| US10254277B2 (en) | 2013-11-08 | 2019-04-09 | Intelligent Fingerprinting Limited | Skin-print fluorescence analysis method and apparatus |
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