JP2001056295A - Surface inspection device - Google Patents
Surface inspection deviceInfo
- Publication number
- JP2001056295A JP2001056295A JP11231782A JP23178299A JP2001056295A JP 2001056295 A JP2001056295 A JP 2001056295A JP 11231782 A JP11231782 A JP 11231782A JP 23178299 A JP23178299 A JP 23178299A JP 2001056295 A JP2001056295 A JP 2001056295A
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent lamp
- light
- light receiving
- area
- light source
- 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.)
- Withdrawn
Links
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、印刷物の表面の印
刷状態、又は抄紙、プラスチックシートもしくは金属シ
ートの表面の汚れ状態等、被検物の表面状態を判別可能
とする表面検査装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface inspection apparatus capable of discriminating a surface state of a test object such as a printing state on a surface of a printed matter or a stain state on a papermaking, plastic sheet or metal sheet.
【０００２】[0002]
【従来の技術】従来、印刷物の表面検査装置として、実
開平6-7056号公報に記載の如く、検査領域に位置付けら
れる被検物（印刷物）の表面に光を照射する光源と、被
検物の表面からの反射光量を検出する受光部とを有し、
受光部が検出した反射光量に基づき、当該被検物の表面
状態（印刷状態）を判別可能とするものがある。2. Description of the Related Art Conventionally, as a printed matter surface inspection apparatus, as described in Japanese Utility Model Application Laid-Open No. 6-7056, a light source for irradiating light to the surface of a test object (printed material) positioned in an inspection area, and a test object A light receiving unit for detecting the amount of reflected light from the surface of the
In some cases, the surface state (printing state) of the test object can be determined based on the amount of reflected light detected by the light receiving unit.
【０００３】この従来技術では、光源として蛍光灯を用
いることができ、図４に示す如く、表面検査装置１のケ
ーシング２の中に蛍光灯３と受光部（不図示）を収納
し、ケーシング２の検査領域に臨む開口面には透明板４
を設けている。In this prior art, a fluorescent lamp can be used as a light source. As shown in FIG. 4, a fluorescent lamp 3 and a light receiving section (not shown) are housed in a casing 2 of a surface inspection apparatus 1 and a casing 2 is provided. Transparent plate 4 on the opening surface facing the inspection area
Is provided.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来技
術では、蛍光灯３が、中央の長さ（Ａ）の安定領域３
Ａ、両端の長さ（Ｂ）の不安定領域３Ｂ、両側の長さ
（Ｃ）のソケット３Ｃを備え、それらの全体をストレー
ト状としている。このとき、不安定領域３Ｂからの照射
光は安定領域３Ａに比べて暗く表面状態の判別に適さな
いから、表面検査装置１の検査領域の長さは安定領域３
Ａの長さ（Ａ）の範囲にとどまる。ところが、表面検査
装置１のケーシング２の全幅Ｌは、蛍光灯３の全体がス
トレート状であるため、検査領域の長さ（Ａ）に加え
て、両不安定領域３Ｂ、３Ｂの長さ（２×Ｂ）と両ソケ
ット３Ｃ、３Ｃの長さ（２×Ｃ）を含むものとなり、必
要以上に長大になるという不都合がある。However, in the prior art, the fluorescent lamp 3 has a stable area 3 having a central length (A).
A, an unstable area 3B having a length (B) at both ends, and a socket 3C having a length (C) on both sides are provided, all of which are straight. At this time, the irradiation light from the unstable region 3B is darker than the stable region 3A and is not suitable for determining the surface state.
The length of A stays within the range (A). However, the entire width L of the casing 2 of the surface inspection apparatus 1 is not only the length of the inspection area (A) but also the length (2) of both unstable areas 3B and 3B because the entire fluorescent lamp 3 is straight. × B) and the length of both sockets 3C, 3C (2 × C), which is disadvantageously unnecessarily long.
【０００５】本発明の課題は、表面検査装置において、
蛍光灯を光源として用いるとき、蛍光灯の安定領域を有
効に用いながら、装置のコンパクトを図ることにある。An object of the present invention is to provide a surface inspection apparatus,
When a fluorescent lamp is used as a light source, it is desirable to make the apparatus compact while effectively using the stable region of the fluorescent lamp.
【０００６】[0006]
【課題を解決するための手段】請求項１に記載の本発明
は、検査領域に位置付けられる被検物の表面に光を照射
する光源と、被検物の表面からの反射光量を検出する受
光部とを有し、受光部が検出した反射光量に基づき、当
該被検物の表面状態を判別可能とする表面検査装置にお
いて、光源として、蛍光灯の両端の不安定領域を中央の
安定領域に対し屈曲させた蛍光灯曲管を用い、該蛍光灯
曲管の中央の安定領域を検査領域に対向配置してなるよ
うにしたものである。According to a first aspect of the present invention, there is provided a light source for irradiating light to a surface of a test object positioned in an inspection area, and a light receiving device for detecting an amount of light reflected from the surface of the test object. A surface inspection apparatus that can determine the surface state of the test object based on the amount of reflected light detected by the light receiving unit. On the other hand, a bent fluorescent lamp tube is used, and the central stable region of the fluorescent lamp bent tube is arranged to face the inspection region.
【０００７】請求項２に記載の本発明は、請求項１に記
載の本発明において更に、前記蛍光灯曲管の両端の不安
定領域を、検査領域に対して遮光する遮光手段を用いて
なるようにしたものである。According to a second aspect of the present invention, there is provided the light emitting device according to the first aspect, further comprising light shielding means for shielding the unstable regions at both ends of the fluorescent lamp curved tube from the inspection region. It is like that.
【０００８】[0008]
【作用】請求項１の本発明によれば下記の作用があ
る。 蛍光灯曲管を光源とし、蛍光灯曲管の中央の安定領域
を検査領域に対向配置した。従って、蛍光灯曲管の中央
の安定領域の全部（長さＡ）を検査領域に対応させて有
効利用できる。同時に、表面検査装置の全幅Ｌは、蛍光
灯曲管の中央の安定領域の長さ（Ａ）に左右されるもの
の、両端の不安定領域の長さ（Ｂ）、両側のソケットの
長さ（Ｃ）には左右されない短寸法となる。According to the first aspect of the present invention, the following operations are provided. The fluorescent lamp curved tube was used as a light source, and the central stable region of the fluorescent lamp curved tube was arranged to face the inspection region. Therefore, the entire stable area (length A) at the center of the fluorescent lamp curved tube can be effectively used in correspondence with the inspection area. At the same time, the total width L of the surface inspection apparatus depends on the length (A) of the central stable area of the fluorescent lamp curved tube, but the length of the unstable area at both ends (B) and the length of the socket on both sides (B). The short dimension does not depend on C).
【０００９】請求項２の本発明によれば下記の作用が
ある。 蛍光灯曲管の両端の不安定領域を検査領域に対して遮
光することにより、被検物の表面状態の判別精度を向上
できる。According to the present invention, the following effects are obtained. By shading the unstable regions at both ends of the fluorescent lamp curved tube from the inspection region, the accuracy of determining the surface state of the test object can be improved.
【００１０】[0010]
【発明の実施の形態】図１は第１実施形態の表面検査装
置を示す断面図、図２は図１のII-II線を沿う断面図、
図３は第２実施形態を示す断面図である。FIG. 1 is a sectional view showing a surface inspection apparatus according to a first embodiment, FIG. 2 is a sectional view taken along the line II-II of FIG.
FIG. 3 is a sectional view showing the second embodiment.
【００１１】（第１実施形態）（図１、図２） 表面検査装置１０は、図１、図２に示す如く、ケーシン
グ１１内に光源１２と受光部１３を収納し、被検物１０
０（印刷物等）が位置付けられる検査領域に対向するケ
ーシング１１の開口部には防塵用透明板１４を設けてい
る。(First Embodiment) (FIGS. 1 and 2) As shown in FIGS. 1 and 2, a surface inspection apparatus 10 includes a casing 11 in which a light source 12 and a light receiving section 13 are housed.
A dustproof transparent plate 14 is provided at the opening of the casing 11 facing the inspection area where 0 (printed matter or the like) is positioned.
【００１２】光源１２は、後に詳述する蛍光灯曲管２１
からなり、検査領域に位置付けられる被検物１００の表
面に光を照射する。The light source 12 includes a fluorescent lamp curved tube 21 which will be described in detail later.
And irradiates the surface of the test object 100 positioned in the inspection area with light.
【００１３】受光部１３は、複数の受光素子３１と、各
受光素子３１に対応する光路管３２とを、光源１２の側
方にて直列配置して構成される。各受光素子３１は、フ
ォトダイオード等からなり、被検物１００の表面の各部
からの反射光量を検出する。The light receiving section 13 is configured by arranging a plurality of light receiving elements 31 and optical path tubes 32 corresponding to the respective light receiving elements 31 in series on the side of the light source 12. Each light receiving element 31 includes a photodiode or the like, and detects the amount of light reflected from each part of the surface of the test object 100.
【００１４】そして、表面検査装置１０は、受光部１３
が検出した被検物１００の表面の各部の反射光量に基づ
き、例えばこの反射光量を、被検物１００の理想表面の
各部毎に予めメモリしてある基準値と比較することによ
り、当該被検物１００の表面状態（印刷状態等）を判別
可能とする。尚、表面検査装置１０は、受光部１３の複
数の受光素子３１の直列配置ラインに対し直交する方向
に被検物１００を移送し、被検物１００の各部の表面状
態をその移動方向に沿う方向で順次判別可能とする。The surface inspection apparatus 10 includes a light receiving unit 13
For example, based on the detected amount of reflected light of each part of the surface of the test object 100, the reflected light amount is compared with a reference value stored in advance for each part of the ideal surface of the test object 100, and The surface state (printing state or the like) of the object 100 can be determined. In addition, the surface inspection apparatus 10 transfers the test object 100 in a direction orthogonal to the serial arrangement line of the plurality of light receiving elements 31 of the light receiving unit 13 and changes the surface state of each part of the test object 100 along the moving direction. The direction can be sequentially determined.
【００１５】しかるに、表面検査装置１０にあっては、
光源１２として蛍光灯曲管２１を用いる。蛍光灯曲管２
１は、中央の長さ（Ａ）の安定領域２１Ａ、両端の長さ
（Ｂ）の不安定領域２１Ｂ、両側の長さ（Ｃ）のソケッ
ト２１Ｃを備え、両端の不安定領域２１Ｂを中央の安定
領域２１Ａに対し屈曲させたものである。そして、表面
検査装置１０は、蛍光灯曲管２１の中央の安定領域２１
Ａを検査領域に対向配置するものである。However, in the surface inspection apparatus 10,
A fluorescent lamp curved tube 21 is used as the light source 12. Fluorescent lamp curved tube 2
1 includes a stable area 21A having a central length (A), an unstable area 21B having both ends (B), and a socket 21C having a length (C) on both sides. It is bent with respect to the stable region 21A. Then, the surface inspection apparatus 10 includes a stable area 21 at the center of the fluorescent lamp curved tube 21.
A is arranged to face the inspection area.
【００１６】尚、表面検査装置１０は、蛍光灯曲管２１
の両端の不安定領域２１Ｂの長さ（Ｂ）の部分を、不透
光体（巻付テープ又は筒状体等）で包み、又は黒色塗布
する等を施した遮光部２２とし、この部分を検査領域に
対して完全に遮光する。The surface inspection apparatus 10 includes a fluorescent lamp curved tube 21
The length (B) portion of the unstable region 21B at each end of the light-shielding portion 22 is wrapped with an opaque material (wrapping tape or tubular body, or the like), or the light-shielding portion 22 is coated with black. Completely shield the inspection area from light.
【００１７】従って、本実施形態によれば以下の作用が
ある。 蛍光灯曲管２１を光源１２とし、蛍光灯曲管２１の中
央の安定領域２１Ａを検査領域に対向配置した。従っ
て、蛍光灯曲管２１の中央の安定領域２１Ａの全部（長
さＡ）を検査領域に対応させて有効利用できる。同時
に、表面検査装置の全幅Ｌは、蛍光灯曲管２１の中央の
安定領域２１Ａの長さ（Ａ）に左右されるものの、両端
の不安定領域２１Ｂの長さ（Ｂ）、両側のソケット２１
Ｃの長さ（Ｃ）には左右されない短寸法となる。Therefore, according to the present embodiment, the following operations are provided. The fluorescent lamp bent tube 21 was used as the light source 12, and the central stable region 21A of the fluorescent lamp bent tube 21 was arranged to face the inspection region. Therefore, the whole (length A) of the central stable area 21A of the fluorescent lamp bending tube 21 can be effectively used in correspondence with the inspection area. At the same time, the total width L of the surface inspection device depends on the length (A) of the central stable area 21A of the fluorescent lamp tube 21, but the length (B) of the unstable area 21B at both ends and the sockets 21 on both sides.
The short dimension does not depend on the length (C) of C.
【００１８】蛍光灯曲管２１の両端の不安定領域２１
Ｂを検査領域に対して遮光することにより、被検物１０
０の表面状態の判別精度を向上できる。Unstable areas 21 at both ends of the fluorescent lamp curved tube 21
B is shielded from light for the inspection area, so that the test object 10
The accuracy of determining the surface state of 0 can be improved.
【００１９】（第２実施形態）（図３） 図３の第２実施形態が第１実施形態と異なる点は、ケー
シング１１の内部に、蛍光灯曲管２１の両端の不安定領
域２１Ｂを挿入した遮光板２３を配置したことにあり、
この遮光板２３により、蛍光灯曲管２１の両端の不安定
領域２１Ｂを検査領域に対して遮光するものである。(Second Embodiment) (FIG. 3) The second embodiment of FIG. 3 is different from the first embodiment in that unstable regions 21B at both ends of a fluorescent tube 21 are inserted inside a casing 11. That the light shielding plate 23 is arranged,
The light shielding plate 23 shields the unstable regions 21B at both ends of the fluorescent lamp curved tube 21 from light with respect to the inspection region.
【００２０】以上、本発明の実施の形態を図面により詳
述したが、本発明の具体的な構成はこの実施の形態に限
られるものではなく、本発明の要旨を逸脱しない範囲の
設計の変更等があっても本発明に含まれる。例えば、蛍
光灯曲管２１の両端の不安定領域２１Ｂの遮光手段とし
て、受光部１３を構成する受光素子３１の受光量を、被
検物１００に対する検査領域の両端側で減量補正する受
光量補正回路を用いるものであっても良い。The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, and the design may be changed without departing from the scope of the present invention. The present invention is also included in the present invention. For example, as the light shielding means of the unstable region 21B at both ends of the fluorescent lamp curved tube 21, the light receiving amount of the light receiving element 31 constituting the light receiving unit 13 is reduced at both ends of the inspection region with respect to the test object 100. A circuit may be used.
【００２１】[0021]
【発明の効果】以上のように本発明によれば、表面検査
装置において、蛍光灯を光源として用いるとき、蛍光灯
の安定領域を有効に用いながら、装置のコンパクトを図
ることができる。As described above, according to the present invention, when a fluorescent lamp is used as a light source in a surface inspection apparatus, the apparatus can be made compact while effectively using the stable region of the fluorescent lamp.
【図１】図１は第１実施形態の表面検査装置を示す断面
図である。FIG. 1 is a sectional view showing a surface inspection apparatus according to a first embodiment.
【図２】図２は図１のII-II線を沿う断面図である。FIG. 2 is a cross-sectional view taken along the line II-II of FIG.
【図３】図３は第２実施形態を示す断面図である。FIG. 3 is a sectional view showing a second embodiment.
【図４】図４は従来例を示す断面図である。FIG. 4 is a sectional view showing a conventional example.
１０ 表面検査装置 １２ 光源 １３ 受光部 ２１ 蛍光灯曲管 ２１Ａ 安定領域 ２１Ｂ 不安定領域 ２２ 遮光部（遮光手段） ２３ 遮光板（遮光手段） DESCRIPTION OF SYMBOLS 10 Surface inspection apparatus 12 Light source 13 Light receiving part 21 Fluorescent lamp curved tube 21A Stable area 21B Unstable area 22 Light shielding part (light shielding means) 23 Light shielding plate (light shielding means)
Claims (2)
に光を照射する光源と、被検物の表面からの反射光量を
検出する受光部とを有し、 受光部が検出した反射光量に基づき、当該被検物の表面
状態を判別可能とする表面検査装置において、 光源として、蛍光灯の両端の不安定領域を中央の安定領
域に対し屈曲させた蛍光灯曲管を用い、該蛍光灯曲管の
中央の安定領域を検査領域に対向配置してなることを特
徴とする表面検査装置。1. A light source for irradiating light to a surface of a test object positioned in an inspection area, and a light receiving unit for detecting an amount of reflected light from the surface of the test object. A surface inspection apparatus capable of determining the surface state of the test object based on the fluorescent lamp, wherein a fluorescent lamp curved tube in which unstable regions at both ends of the fluorescent lamp are bent with respect to a central stable region is used as a light source; A surface inspection apparatus characterized in that a central stable area of a curved tube is arranged to face an inspection area.
検査領域に対して遮光する遮光手段を用いてなる請求項
１記載の表面検査装置。2. An unstable region at both ends of the fluorescent lamp curved tube,
2. The surface inspection apparatus according to claim 1, wherein a light shielding unit that shields the inspection area from light is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11231782A JP2001056295A (en) | 1999-08-18 | 1999-08-18 | Surface inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11231782A JP2001056295A (en) | 1999-08-18 | 1999-08-18 | Surface inspection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001056295A true JP2001056295A (en) | 2001-02-27 |
Family
ID=16928956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11231782A Withdrawn JP2001056295A (en) | 1999-08-18 | 1999-08-18 | Surface inspection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001056295A (en) |
-
1999
- 1999-08-18 JP JP11231782A patent/JP2001056295A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20061107 |