JPH0366362A - Formation of elastic body thin film - Google Patents
Formation of elastic body thin filmInfo
- Publication number
- JPH0366362A JPH0366362A JP1201310A JP20131089A JPH0366362A JP H0366362 A JPH0366362 A JP H0366362A JP 1201310 A JP1201310 A JP 1201310A JP 20131089 A JP20131089 A JP 20131089A JP H0366362 A JPH0366362 A JP H0366362A
- Authority
- JP
- Japan
- Prior art keywords
- thin film
- elastic body
- prism
- body thin
- film material
- 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.)
- Granted
Links
- 239000010409 thin film Substances 0.000 title claims abstract description 39
- 230000015572 biosynthetic process Effects 0.000 title 1
- 239000000463 material Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims description 9
- 238000009795 derivation Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 abstract description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 239000002518 antifoaming agent Substances 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract 1
- 238000005187 foaming Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 238000002788 crimping Methods 0.000 description 5
- 210000004243 sweat Anatomy 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 210000000106 sweat gland Anatomy 0.000 description 1
- 230000035900 sweating Effects 0.000 description 1
Landscapes
- Character Discrimination (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Image Input (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は凹凸面情報検出装置の指紋等の被照合バタンを
光学的に検出する画像入力部に弾性体薄膜を形成する弾
性体薄膜形成方法に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method for forming an elastic thin film on an image input section for optically detecting a stamp to be verified such as a fingerprint of an uneven surface information detection device. Regarding.
［従来の技術］
指紋を用いて個人を同定する方法は、指紋の「万人不同
」および「終生不変」の特質から、極めて高い信頼性を
有する。このため１画像処理およびバタン認識技術を用
いて入力指紋と予め登録されている登録指紋との同一性
を検出する指紋照合装置が、例えば特開昭５５−１８８
１７４号公報および特開昭５９−７７８号公報をはじめ
として、多くの提案がなされている。[Prior Art] A method for identifying individuals using fingerprints has extremely high reliability because of the characteristics of fingerprints that are "unique for everyone" and "unchangeable throughout life." For this reason, a fingerprint matching device that detects the identity of an input fingerprint and a pre-registered registered fingerprint using image processing and button recognition technology has been developed, for example, in Japanese Patent Application Laid-Open No. 55-188.
Many proposals have been made, including those in Japanese Patent Laid-Open No. 174 and Japanese Unexamined Patent Publication No. 59-778.
かかる指紋照合装置では、プリズムの載置面上に載置さ
れた指に対して２ この載置面の裏面から光を照射し光
学的境界変化を利用して、ＩＴＶ（Ｉｎｄｕｓｔｒｌａ
ｌ Ｔｅ１ｅｖ１ｓｉｏｎ ）等の撮像装置によって指
紋紋様パターン像を得る指紋画像入力装置を有している
。このような指紋画像入力装置は例えば、特開昭５４−
６９３００号公報および特開昭５４−８５８００号公報
に開示されている。In such a fingerprint matching device, light is irradiated from the back side of the prism placement surface to the finger placed on the placement surface of the prism, and optical boundary changes are utilized to generate ITV (IndustrLa
It has a fingerprint image input device that obtains a fingerprint pattern image using an imaging device such as a digital camera. Such a fingerprint image input device is disclosed in, for example, Japanese Unexamined Patent Application Publication No. 1986-
It is disclosed in Japanese Patent Application Laid-open No. 69300 and Japanese Patent Application Laid-open No. 85800/1983.
第２図（＾）は、かかる画像入力装置におけるプリズム
１と、被検査対象物である指２０との配置関係を示す平
面図である。FIG. 2(^) is a plan view showing the arrangement relationship between the prism 1 and the finger 20, which is the object to be inspected, in such an image input device.
プリズム１は第２図（Ｂ）に示すように光の入射面１１
と指２０を載置する載置面である反射面１２と、この反
射面からの反射光を導出する導出面１３との三面を有す
る。The prism 1 has a light entrance surface 11 as shown in FIG. 2(B).
It has three surfaces: a reflective surface 12 which is a mounting surface on which the finger 20 is placed, and a derivation surface 13 which derives reflected light from this reflective surface.
１１２図（Ｃ）は導出面１３から得られる指紋紋様パタ
ーンの一例である。FIG. 112 (C) is an example of a fingerprint pattern obtained from the derivation surface 13.
通常、プリズム１の反射面１２に指を載置した場合、第
３図（ａ）に示すように隆線（指紋紋様凸部）３１が反
射面１２に接触する。指の表面の屈折率は空気の屈折率
より大きいので、その部分では入射光は乱反射を生じる
。一方、指紋の谷線部（指紋紋様凹部）３２では２反射
面１２において全反射を生じる。これにより、隆線が暗
く、谷線および背景領域が明るい濃淡画像が得られる。Normally, when a finger is placed on the reflective surface 12 of the prism 1, the ridges (fingerprint pattern projections) 31 come into contact with the reflective surface 12, as shown in FIG. 3(a). Since the refractive index of the surface of the finger is greater than that of air, incident light is diffusely reflected at that part. On the other hand, total reflection occurs at the two reflective surfaces 12 at the fingerprint valley line portion (fingerprint pattern concave portion) 32 . This results in a grayscale image in which the ridges are dark and the valley lines and background area are bright.
また、汗腺口からの発汗や隆線上の水分が十分な場合に
は第３図（ｂ）に示す如く、隆線上の微小な凹凸に、汗
や水分３３が充填されることにより。Furthermore, when there is sufficient sweat from the sweat gland pores and sufficient moisture on the ridges, sweat and moisture 33 are filled into minute irregularities on the ridges, as shown in FIG. 3(b).
隆線３１と反射面１２との密着性が保たれ、鮮明な濃淡
画像が得られる。Adhesion between the ridge 31 and the reflective surface 12 is maintained, and a clear gradation image can be obtained.
ところが２発汗が十分でない場合等、指表面が乾燥して
いる場合は、第３図（Ｃ）に示す様に隆線３１が反射面
１２へ部分的にしか接触しないので隆線３１の鮮明な画
像が得られない。そこで従来は反射面１２上に弾力性を
有し、かつ透明度の高い弾性体薄１ｌ１３４を形成する
ことにより、隆線３１の微小な凹凸部分に９弾性体表面
３５が密着するようにして、鮮明な画像が得られるよう
にしている。However, if the finger surface is dry, such as when sweating is insufficient, the ridges 31 only partially contact the reflective surface 12, as shown in FIG. I can't get an image. Therefore, conventionally, a thin elastic body 1134 having elasticity and high transparency is formed on the reflective surface 12, so that the elastic body surface 35 is brought into close contact with the minute uneven portions of the ridges 31, and the 9 elastic body surface 35 is clearly This allows you to obtain accurate images.
［発明が解決しようとする課題］
しかしながら、上述の弾性体薄膜はプリズムの反射面上
に単に塗布されただけのもので、その表面には凹凸が存
在する。その結果、得られた画像に歪みが生じるという
問題点がある。[Problems to be Solved by the Invention] However, the above-mentioned elastic thin film is merely coated on the reflective surface of the prism, and its surface has irregularities. As a result, there is a problem that distortion occurs in the obtained image.
本発明は、膜厚が均一で平面が平坦な弾性体薄膜の形成
方法を提供することを目的とする。An object of the present invention is to provide a method for forming an elastic thin film having a uniform thickness and a flat surface.
本発明は入射面１反射面、及び導出面を有し。 The present invention has an entrance surface, a reflection surface, and an output surface.
前記反射面上に被検査対象物が載置され、前記入射面か
ら入射する光を前記反射面で反射させ、前記導出面より
前記反射光を得るプリズムに弾性体薄膜を形成する際に
用いられ、前記入射面と前記導出面とを支持部で支持し
た状態で前記反射面上に弾性体薄膜材料を塗布した後、
圧着部によって前記弾性体薄膜材料を押圧した状態で加
熱して前記反射面上に弾性体薄膜を形成するようにした
ことを特徴とする凹凸面情報検出装置における弾性体薄
膜形成方法。Used when forming an elastic thin film on a prism in which an object to be inspected is placed on the reflective surface, the light incident from the incident surface is reflected by the reflective surface, and the reflected light is obtained from the output surface. , after applying an elastic thin film material on the reflective surface with the incident surface and the output surface supported by a support part,
A method for forming an elastic thin film in an uneven surface information detection device, characterized in that an elastic thin film is formed on the reflective surface by heating the elastic thin film material while being pressed by a crimping part.
［実施例］ 本発明の一実施例を、第１図を参照して説明する。[Example] An embodiment of the present invention will be described with reference to FIG.
まず、プリズム１を支持部２に設けられたプリズム１の
入射面１１と導出面１３とがなす角度と同一角度を有す
る三角柱形状切り込み中に置く。First, the prism 1 is placed in a triangular prism-shaped cut that has the same angle as the angle formed by the entrance surface 11 and the output surface 13 of the prism 1 provided on the support section 2 .
次に１反射面１２上に弾性体薄膜とガラスとの物理的密
着性を保つと同時に、光学的バスを著しく乱さない接着
剤（以降、ブライマーと呼ぶ）を薄く塗布する。その後
、ブライマーが硬化しない前に弾性体薄膜材料をブライ
マー上に塗布する。この際２弾性体薄膜材料硬化後、該
弾性体薄膜材料中に気泡を生じないように、脱泡剤を添
加することが必要である。Next, on the first reflective surface 12, a thin layer of adhesive (hereinafter referred to as brimer) is applied which maintains the physical adhesion between the elastic thin film and the glass and does not significantly disturb the optical bus. Thereafter, an elastomer thin film material is applied onto the brimer before the brimer is cured. At this time, it is necessary to add a defoaming agent after the two-elastic thin film material is cured so as not to generate air bubbles in the elastic thin film material.
その後、圧着部３を支持部２上に載せ、固定部材４によ
り締め付けて弾性体を押圧する。ここで。Thereafter, the crimp section 3 is placed on the support section 2 and tightened by the fixing member 4 to press the elastic body. here.
圧着部３の弾性体薄膜材料に接する面には弾性体薄膜表
面に生じる凹凸をなくシ２弾性体薄膜表面の滑らかさ精
度を高めるために、クロムメツキが施されている。The surface of the crimp portion 3 that comes into contact with the elastic thin film material is chrome plated to eliminate irregularities that occur on the elastic thin film surface and to improve the smoothness and accuracy of the elastic thin film surface.
プリズム反射面１２にブライマーおよび弾性体薄膜材料
を塗布し、支持部２に載せ２圧着部３で押圧し、固定部
材４で締め付けた後、焼付は用釜に入れ、高温（６０℃
〜１００’Ｃ）にて約１時間程、加熱して弾性体薄膜を
形成する。その後、自然冷却し、支持部２及び圧着部３
よりプリズム１を取り出す。After coating the prism reflective surface 12 with a brimer and an elastic thin film material, placing it on the support part 2 and pressing it with the crimping part 3 and tightening it with the fixing member 4, place it in a baking oven and heat it at a high temperature (60°C).
~100'C) for about 1 hour to form an elastic thin film. After that, the supporting part 2 and the crimp part 3 are cooled naturally.
Take out prism 1.
第１図（ｂ）に支持部２に載置され圧着部３で押えられ
たプリズム１の部分拡大断面図を示す。この図において
、プリズム１を支持部に載せた際。FIG. 1(b) shows a partially enlarged sectional view of the prism 1 placed on the support part 2 and pressed by the crimping part 3. In this figure, when the prism 1 is placed on the support.
支持部２の圧着部に対向する面とプリズム１の反射面１
２との間にはΔＴの深さを生じる様に支持部２の切り込
みを設けている。ここで、プライマーは、一般に粘性が
低く、その厚さは弾性体の厚さと比較して無視できる程
の厚さで塗布できる。The surface of the support portion 2 facing the crimp portion and the reflective surface 1 of the prism 1
A notch is provided in the support portion 2 so as to create a depth of ΔT between the support portion 2 and the support portion 2 . Here, the primer generally has low viscosity and can be applied to a thickness that is negligible compared to the thickness of the elastic body.
従って、この△Ｔが弾性体の厚さとなる。この切り込み
の深さを変えれば１弾性体薄膜の厚さを変えることがで
きる。Therefore, this ΔT becomes the thickness of the elastic body. By changing the depth of this cut, the thickness of the elastic thin film can be changed.
なお、プライマーおよび弾性体薄膜材料の塗布方法につ
いては数多くの公知なる手法が存在しており、ここでは
、それらを組合わせて使うものとする。Note that there are many known methods for applying the primer and the elastic thin film material, and a combination of these methods will be used here.
本発明において使用する弾性を有する材料の一例として
、シリコンゴム系、天然ゴム系の材料を用いることがで
きる。As an example of an elastic material used in the present invention, a silicone rubber-based material or a natural rubber-based material can be used.
［発明の効果］
以上説明したよ′うに本発明は支持部で支持されたプリ
ズム面上にプライマーおよび弾性体薄膜材料を塗布後、
圧着部により弾性体薄膜材料を押圧し、高温で熱するこ
とにより、厚さが均一で表面が平坦な弾性体薄膜を形成
することができる。[Effects of the Invention] As explained above, the present invention applies the primer and the elastic thin film material to the prism surface supported by the support part, and then
By pressing the elastic thin film material with the crimping part and heating it at a high temperature, it is possible to form an elastic thin film with a uniform thickness and a flat surface.
第１図（ａ）及び（ｂ）は本発明の一実施例を説明する
ための図であり、（ａ〉は概略図、（ｂ）は第１図（ａ
）の一部拡大図、第２ （Ａ） （Ｂ） （Ｃ）は従来
の装置の基本的な構成図であり、（Ａ）は平面図、（Ｂ
）は正面図、（Ｃ〉は得られる像を示す図、第３図（ａ
）（ｂ） （ｃ）及び（ｄ）はガラス面上の隆線の密着
状態および弾性体膜上の隆線の密着状態を示す概略図を
示す。
１・・・プリズム、２・・・支持部、３・・・圧着部、
４・・・固定部材、５・・・弾性体薄膜、１１・・・入
射面、１２・・・反射面、１３・・・導出面、２０・・
・指、３１・・・隆線。
３２・・・谷線部、３３・・・汗および水分、３４・・
・弾性体薄膜、３５・・・弾性体表面である。
第１図
（Ａ）
光
（Ｂ）
（ｂ）
（Ｃ）
手続補正書
（方式）
％式％
事件の表示
平成１年特許願第２０１３１０号
２゜
発明の名称
弾性体薄膜形成方法
３゜
補正をする者
事件との関係FIGS. 1(a) and (b) are diagrams for explaining one embodiment of the present invention, where (a) is a schematic diagram and FIG. 1(b) is a diagram for explaining an embodiment of the present invention.
), Part 2 (A), (B), and (C) are basic configuration diagrams of the conventional device; (A) is a plan view, and (B)
) is a front view, (C> is a diagram showing the obtained image, and Figure 3 (a)
)(b) (c) and (d) are schematic diagrams showing the state of close contact of the ridges on the glass surface and the state of close contact of the ridges on the elastic membrane. DESCRIPTION OF SYMBOLS 1... Prism, 2... Support part, 3... Crimping part,
4... Fixed member, 5... Elastic thin film, 11... Incident surface, 12... Reflective surface, 13... Derivation surface, 20...
・Finger, 31...ridge. 32... Valley line part, 33... Sweat and moisture, 34...
- Elastic body thin film, 35... Elastic body surface. Figure 1 (A) Light (B) (b) (C) Procedural amendment (method) % formula % Display of case 1999 Patent Application No. 201310 2゜Name of invention Elastic thin film forming method 3゜Amendment Relationship with cases involving persons who commit crimes
Claims (1)
に被検査対象物が載置され、前記入射面から入射する光
を前記反射面で反射させ、前記導出面より前記反射光を
得るプリズムに弾性体薄膜を形成する際に用いられ、前
記入射面と前記導出面とを支持部で支持した状態で前記
反射面上に弾性体薄膜材料を塗布した後、圧着部によっ
て前記弾性体薄膜材料を押圧した状態で加熱して、前記
反射面上に弾性体薄膜を形成するようにしたことを特徴
とする凹凸面情報検出装置における弾性体薄膜形成方法
。1. It has an entrance surface, a reflection surface, and a derivation surface, an object to be inspected is placed on the reflection surface, the light incident from the entrance surface is reflected by the reflection surface, and the light is reflected from the derivation surface. It is used when forming an elastic thin film on a prism that obtains light, and after applying an elastic thin film material on the reflective surface with the incident surface and the outgoing surface supported by a support section, 1. A method for forming an elastic thin film in an uneven surface information detection device, characterized in that the elastic thin film material is heated while being pressed to form an elastic thin film on the reflective surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1201310A JPH0657206B2 (en) | 1989-08-04 | 1989-08-04 | Method for forming elastic thin film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1201310A JPH0657206B2 (en) | 1989-08-04 | 1989-08-04 | Method for forming elastic thin film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0366362A true JPH0366362A (en) | 1991-03-22 |
| JPH0657206B2 JPH0657206B2 (en) | 1994-08-03 |
Family
ID=16438887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1201310A Expired - Lifetime JPH0657206B2 (en) | 1989-08-04 | 1989-08-04 | Method for forming elastic thin film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0657206B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1014904A (en) * | 1996-07-01 | 1998-01-20 | Ryokichi Tamaoki | Finger print reader |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5734147U (en) * | 1980-07-30 | 1982-02-23 | ||
| JPH10136620A (en) * | 1996-10-31 | 1998-05-22 | Sanyo Denki Co Ltd | Method and apparatus for winding of split core |
| JPH10271715A (en) * | 1997-03-25 | 1998-10-09 | Shibaura Eng Works Co Ltd | Stator core |
| JPH11206057A (en) * | 1998-01-16 | 1999-07-30 | Oriental Motor Co Ltd | Structure of insulator for stator core of motor |
| JP2000184635A (en) * | 1998-12-18 | 2000-06-30 | Calsonic Kansei Corp | Motor |
| JP2002291190A (en) * | 2001-03-28 | 2002-10-04 | Nippon Densan Corp | motor |
| JP2007252031A (en) * | 2006-03-14 | 2007-09-27 | Mitsuba Corp | Insulator and motor |
| JP2011067055A (en) * | 2009-09-18 | 2011-03-31 | Mitsuba Corp | Method of manufacturing stator and stator |
-
1989
- 1989-08-04 JP JP1201310A patent/JPH0657206B2/en not_active Expired - Lifetime
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5734147U (en) * | 1980-07-30 | 1982-02-23 | ||
| JPH10136620A (en) * | 1996-10-31 | 1998-05-22 | Sanyo Denki Co Ltd | Method and apparatus for winding of split core |
| JPH10271715A (en) * | 1997-03-25 | 1998-10-09 | Shibaura Eng Works Co Ltd | Stator core |
| JPH11206057A (en) * | 1998-01-16 | 1999-07-30 | Oriental Motor Co Ltd | Structure of insulator for stator core of motor |
| JP2000184635A (en) * | 1998-12-18 | 2000-06-30 | Calsonic Kansei Corp | Motor |
| JP2002291190A (en) * | 2001-03-28 | 2002-10-04 | Nippon Densan Corp | motor |
| JP2007252031A (en) * | 2006-03-14 | 2007-09-27 | Mitsuba Corp | Insulator and motor |
| JP2011067055A (en) * | 2009-09-18 | 2011-03-31 | Mitsuba Corp | Method of manufacturing stator and stator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1014904A (en) * | 1996-07-01 | 1998-01-20 | Ryokichi Tamaoki | Finger print reader |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0657206B2 (en) | 1994-08-03 |
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