JP2003149048A - Optical measuring instrument - Google Patents

Optical measuring instrument

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Publication number
JP2003149048A
JP2003149048A JP2001351376A JP2001351376A JP2003149048A JP 2003149048 A JP2003149048 A JP 2003149048A JP 2001351376 A JP2001351376 A JP 2001351376A JP 2001351376 A JP2001351376 A JP 2001351376A JP 2003149048 A JP2003149048 A JP 2003149048A
Authority
JP
Japan
Prior art keywords
measuring instrument
light source
optical measuring
work
cover
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
Application number
JP2001351376A
Other languages
Japanese (ja)
Inventor
Osamu Hanajima
修 花島
Masaharu Kamiya
雅治 神屋
Kazuhiro Saiki
和弘 斉木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toppan Inc
Original Assignee
Toppan Printing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP2001351376A priority Critical patent/JP2003149048A/en
Publication of JP2003149048A publication Critical patent/JP2003149048A/en
Pending legal-status Critical Current

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  • Spectrometry And Color Measurement (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide an optical measuring instrument which realizes enhancement of workability and abolition of complicated work, by providing customized composite parts without removing the measuring instrument from a specified position, when a periodic maintenance parts exchange for the optical measuring instrument is performed, or when the measuring instrument becomes in trouble and a defective component is exchanged, since there are some cases where efficiency worsens, in general, in some work by performing thorough size reduction, and easiness of using the instrument is insufficient for users, and labor is required again for positioning, owing to detachment of an apparatus, etc., when maintenance work is performed, or a trouble occurs. SOLUTION: This optical measuring instrument is used for various kinds of measurement, and has a mechanism in which a measuring light source fitted in a sensor and an interruption cover for interruption from outside are integrated.

Description

【発明の詳細な説明】 【0001】 【発明の属する技術分野】本発明は光源内蔵型の光学式
計測器全般に関するものである。 【0002】 【従来の技術】基本的に光源内蔵型の光学式計測器に共
通しているのは、光源を1個以上有していることであ
る。形態は多種あるが、大別すると透過光タイプと反射
光タイプに分けられる。前記両タイプのいずれも、検出
方式に適切な量かつ適切な波長帯域の光源を備えている
ことが必要であるが、検出に重きを置いた場合は検出部
と光源部は、共に大きくなる傾向があるため、一体型に
はなり難い。 【0003】特に光源は大きくなり、更には適切な量か
つ適切な波長帯域の光を安定供給する必要があるため、
光源自体で自己管理できる機能を求められることが少な
くない。このようなの形態の場合は、検出部と光源部を
光学的外乱の極めて少ないと思われる手段で連結する必
要があり、現在では光ファイバーが最も有効な方法の一
つである。しかし、光ファイバーを用いる場合は検出部
および光源部は位置固定が必然となるので、持ち運びや
検出部移動を考えた計測形態には非常に不都合である。 【0004】光学式計測器の構成要素としては、簡単に
分けると受光部、光源部、演算処理部、その他がある
が、時系列的変化が必ず起こるのは光源部であり、受光
部は受光素子の選定により大きく異なるので事情はそれ
ぞれ違ってくる。 【0005】光源の性能が長時間安定していることが計
測器としては望ましいが、光源の時系列的劣化速度が速
くても、受光素子性能の補助により正常と考えられる検
出が所定期間維持できるならば、前記ファイバー方式で
はない一体型で十分考えられることになるし、計測器の
構成要素数もファイバー式に比べ減る可能性が高いの
で、コスト面でも有利である。 【0006】以上のことを踏まえても、光学式計測器に
おいても多様な環境に適応できるよう基本性能が求めら
れることは多く、要求性能の中に機器自体の大きさも当
然入っているし、重量と比例することからも重要な性能
の一つでもある。 【0007】以下、図3の反射型光学式計測器の光源一
体型の例である構成図を用いて従来例を説明する。図の
説明を簡単にすると、直接の検出部(2)は投光側と受
光側より構成されていることが通常である。 【0008】本体(1)の大きさは、内蔵する必要な部
品により大きさが勿論異なってくるが、基本的に外部と
の接触で影響を受けやすい部品が多いので密封された形
態になっていることが多い。 【0009】ただし、消耗品である光源(4)は必ず定
期的交換を必要とするので、他構成部品とは別扱いにし
て、別の蓋(3)の開閉だけで交換可能であることが望
ましい。 【0010】他構成部品とは隔絶された部屋に設置され
ることにより発熱の影響も抑えることができる。 【発明が解決しようとする課題】 【0011】光学式計測器の小型化には全構成部品の小
型化が当然必要であるが、小型化に徹することにより作
業によっては効率が悪くなる場合もある。市販品の傾向
でも小型化後の使い易さはユーザーにとって十分とは言
えないことが未だに多い。 【0012】更には、被計測対象と光学式計測機器の位
置関係が計測精度に重要な場合は、メンテナンスやトラ
ブル時の機器取り外し、取り付けが発生すると再度位置
調整に多大な労力が必要となる場合が少なくないので、
この点でも改善の余地がある。 【0013】 【課題を解決するための手段】上記の課題を解決するた
めに本発明は、光学式計測器の定期メンテナンス部品交
換やトラブル時の不良部品交換の際に所定の位置より計
測器を取り外すことなくかつカスタマイズした複合部品
を提供することにより作業性の向上と複雑な作業の廃止
を実現するものである。具体的には、少なくとも受光
部、演算処理部、光源部を内蔵する光学式計測器におい
て、光学式計測器内に組み込まれた光源が外部との遮蔽
用カバーと連接してあることを特徴とする光学式計測器
を提供するものである。 【0014】ここにおいて連接とは、光源がカバーに固
定されているものの他、ブラケット等の部材を介して固
定されているもの、その他途中に回動機構や伸縮機構等
の各種調整機構を介するものであっても構わないが、と
にかくカバーを固定する事により光源が結果的に固定で
きる様な機構を持つものであればどのような構造を持つ
ものでも構わない。 【0015】また、カバーは、蓋の他、直方体の一面が
開口しており、その開口面を本体の開口部に固定できる
様なカセット式のカバー等でもその固定により遮蔽が行
われるものであれば構わないものである。さらに、光源
の電源については、カバーを固定することにより配線の
接触が行われるのが簡便で好ましいが、固定後別途手段
により電源供給を行う機構のものであっても構わないも
のである。 【0016】 【発明の実施の形態】本発明が提案することは、図示し
ない受光部、演算処理部を有する光学式計測器において
光源部が図1に示すように蓋(3)側と光源(4)をブ
ラケット(5)で接続することにより一体化することに
より、光源交換による光学式計測器の本体(1)の取り
外し回数を不要にすることによって、光学式計測器とし
て必要な位置精度の調整作業を故障時以外に発生させな
い様にすることである。 【0017】また、光源取り付け作業自体も電源線の接
続や光源位置出しなどの複雑な作業を要求されることが
多いので、作業性の向上と複雑な作業の廃止を実現する
ものである。 【0018】発熱対策としても、蓋(3)と常時接触す
ることになるため蓋(3)やブラケット(5)の材質を
熱伝導性の高いものにすれば放熱面でも向上させること
ができる。 【0019】本発明による部品構成ならば、光源の位置
だしは、蓋(7)の形状で段差(8)のように製作すれ
ば蓋(3)自体と本体(1)との相対位置は高精度で再
現性を持つことができる。 【0020】ピン(6)(図3参照)による位置出し精
度の方が高精度で光源の取り付け再現性を可能にする
が、本発明の方式でも十分に精度保証できることが確認
できている。 【0021】トラブル時の作業効率を上げるには蓋
(3)と同じ考え方で、光源部以外の蓋も分割取り付け
することにより、取り外しが非常に簡単に行うことがで
き、光学式計測器の取り外し回数を更に少なくできる。 【0022】 【実施例】本発明による実施例を図2に示す。光学式計
測器は、(倉敷紡績株式会社製:製品名RX−220)
である光源内蔵型光学式計測器であり、その光源(4)
にはタングステンの光源5ワット(5V,1A)を用い
た。電源供給は、光源後部に正極板(12)を接続し、
光源胴部に負極(13)を固定して本体(1)側から供
給した。これは、本体(1)から正極板(12)と負極
(13)が光源(4)の後部および胴部の固定位置に相
応する場所に予め設けられ、本体(1)への配線と緩衝
機構を兼ねた片持ち梁により支えられている。 【0023】電極材料として厚み0.3mmの黄銅版
(JIS記号C2801P)を採用し、製作した。光源
は直接的には平板状のブラケット(11)に図2と同様
にナット(9)で固定している。 【0024】ブラケット(11)の材質は、放熱性を重
視してアルミ合金(JIS記号A5052P)、厚み2
mmの材料を用いた。蓋(7)は、上述のRX−220
の光源ランプ取り替え用の蓋にブラケット(11)を取
り付けたものを使用した。最後にオプション的部品とし
て光源強度を上げる方法として特殊ミラー(14)を本
体(1)に取り付けることを試みた。 【0025】実際に取り付けて、光源強度を計測したと
ころ光量として平均20〜30%増量できることが確認
できた。 【0026】光源の選定でも光量を上げられるが、光源
の寿命と発熱、大きさの制約を考慮すると部品一つで可
能なことから有効なオプションと考えられる。以上の実
施形態により、以前は光源交換作業に10〜15分必要
であったが、1〜2分に大きく短縮することが確認でき
た。 【0027】 【発明の効果】本発明の提案により、従来必要であった
機器取り外し時の被計測対象と光学式計測機器の位置調
整作業やメンテナンスやトラブル時の所定位置より計測
器を取り外すことなく、必要な作業が可能なことにより
自動化システムの稼動効率を向上させることができる。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical measuring instrument having a built-in light source. 2. Description of the Related Art Basically, an optical measuring instrument with a built-in light source is common in that it has one or more light sources. There are various types, but they are roughly classified into transmitted light type and reflected light type. Both of the above types need to be provided with a light source of an appropriate amount and an appropriate wavelength band for the detection method, but when emphasis is placed on detection, both the detection unit and the light source unit tend to be large. Therefore, it is difficult to be integrated. [0003] In particular, the light source becomes large, and it is necessary to stably supply light of an appropriate amount and an appropriate wavelength band.
In many cases, the light source itself is required to have a function capable of self-management. In such a case, it is necessary to connect the detection unit and the light source unit by means considered to have very little optical disturbance. At present, an optical fiber is one of the most effective methods. However, when an optical fiber is used, the position of the detection unit and the light source unit must be fixed, which is very inconvenient in a measurement form in consideration of carrying or moving the detection unit. [0004] The components of the optical measuring instrument can be simply divided into a light receiving section, a light source section, an arithmetic processing section, and others. However, the time series change always occurs in the light source section. The situation differs from one to the other because it greatly differs depending on the selection of the element. It is desirable that the performance of the light source be stable for a long time as a measuring instrument. However, even if the speed of the light source deteriorates in a time series is high, the detection considered to be normal can be maintained for a predetermined period with the aid of the performance of the light receiving element. If this is the case, an integrated type other than the fiber type can be considered sufficiently, and the number of components of the measuring instrument is more likely to be reduced than that of the fiber type, which is advantageous in terms of cost. [0006] In view of the above, it is often the case that an optical measuring instrument is required to have basic performance so that it can be adapted to various environments. The required performance naturally includes the size of the device itself, It is also one of the important performances because it is proportional to Hereinafter, a conventional example will be described with reference to a configuration diagram of an example of a light source integrated type of a reflection type optical measuring instrument shown in FIG. To simplify the description, the direct detection unit (2) is usually composed of a light projecting side and a light receiving side. The size of the main body (1) naturally depends on the necessary components to be built in. However, since there are many components that are basically susceptible to contact with the outside, the main body (1) is in a sealed form. Often. However, since the light source (4), which is a consumable, always needs to be replaced periodically, it can be replaced by opening and closing another cover (3) separately from other components. desirable. [0010] By being installed in a room separated from other components, the influence of heat generation can be suppressed. The miniaturization of the optical measuring instrument requires the miniaturization of all the components, but the miniaturization of the optical measuring instrument may lower the efficiency depending on the operation. . Even with the tendency of commercial products, the ease of use after miniaturization is still often insufficient for users. Further, when the positional relationship between the object to be measured and the optical measuring device is important for the measurement accuracy, when the maintenance or removal and attachment of the device in the event of trouble occur, a great deal of labor is required for the position adjustment again. Is not small,
There is still room for improvement in this regard. [0013] In order to solve the above-mentioned problems, the present invention provides a method for replacing a measuring instrument from a predetermined position at the time of periodic maintenance part replacement of an optical measuring instrument or replacement of a defective part at the time of trouble. By providing a customized composite part without removing it, it is possible to improve workability and eliminate complicated work. Specifically, in an optical measuring instrument including at least a light receiving section, an arithmetic processing section, and a light source section, a light source incorporated in the optical measuring instrument is connected to a cover for shielding from the outside. An optical measuring instrument is provided. Here, the connection means that the light source is fixed to the cover, the light source is fixed via a member such as a bracket, and the connection through a variety of adjusting mechanisms such as a rotating mechanism and a telescopic mechanism. However, any structure may be used as long as it has a mechanism capable of fixing the light source by fixing the cover. The cover has an opening on one side of the rectangular parallelepiped in addition to the lid, and a cassette-type cover or the like capable of fixing the opening to the opening of the main body can be shielded by the fixing. It doesn't matter. Further, as for the power source of the light source, it is preferable that the wiring be brought into contact by fixing the cover simply and preferably. However, a mechanism that supplies power by a separate means after fixing may be used. DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention proposes that, in an optical measuring instrument having a light receiving section and an arithmetic processing section (not shown), a light source section has a lid (3) side and a light source (not shown) as shown in FIG. By integrating 4) by connecting the bracket (5), the number of times of removing the main body (1) of the optical measuring instrument by exchanging the light source becomes unnecessary, and the positional accuracy required as the optical measuring instrument is eliminated. The purpose is to prevent adjustment work from occurring only at the time of failure. In addition, since the light source mounting operation itself often requires complicated operations such as connection of a power supply line and positioning of a light source, improvement of workability and elimination of complicated operations are realized. As a measure against heat generation, the cover (3) is always in contact with the cover (3), so that if the material of the cover (3) and the bracket (5) is made of a material having high thermal conductivity, the heat dissipation surface can be improved. In the case of the component structure according to the present invention, the position of the light source is made to be the same as the step (8) in the shape of the lid (7), so that the relative position between the lid (3) itself and the main body (1) is high. It can have reproducibility with accuracy. Although the positioning accuracy by the pin (6) (see FIG. 3) enables the mounting reproducibility of the light source with higher accuracy, it has been confirmed that the method of the present invention can sufficiently guarantee the accuracy. In order to increase the work efficiency at the time of trouble, the lid other than the light source section can be detached very easily by splitting and attaching the lid other than the light source section in the same way as the lid (3), and the optical measuring instrument can be removed. The number of times can be further reduced. FIG. 2 shows an embodiment according to the present invention. The optical measuring instrument is manufactured by Kurashiki Spinning Co., Ltd. (product name: RX-220).
Optical measuring instrument with built-in light source, and its light source (4)
A tungsten light source of 5 watts (5 V, 1 A) was used. For power supply, connect the positive plate (12) to the rear of the light source,
The negative electrode (13) was fixed to the light source body, and supplied from the main body (1) side. This is because the positive electrode plate (12) and the negative electrode (13) are provided beforehand from the main body (1) at a position corresponding to the fixed position of the rear part and the body part of the light source (4), and the wiring to the main body (1) and the buffer mechanism are provided. It is supported by a cantilever that also serves as A brass plate (JIS symbol C2801P) having a thickness of 0.3 mm was adopted as an electrode material and manufactured. The light source is directly fixed to a flat bracket (11) with a nut (9) as in FIG. The material of the bracket (11) is aluminum alloy (JIS symbol A5052P) and thickness
mm of material. The lid (7) is provided with the above-mentioned RX-220.
A light source lamp replacement lid having a bracket (11) attached thereto was used. Finally, an attempt was made to attach a special mirror (14) to the main body (1) as an optional part to increase the light source intensity. When the light source was actually mounted and the light source intensity was measured, it was confirmed that the light amount could be increased by 20 to 30% on average. Although the amount of light can be increased by selecting a light source, it is considered to be an effective option because only one component can be used in consideration of the life of the light source, heat generation, and restrictions on the size. According to the above-described embodiment, it was confirmed that the replacement of the light source previously required 10 to 15 minutes, but the time was greatly reduced to 1 to 2 minutes. According to the proposal of the present invention, it is possible to adjust the position of the object to be measured and the optical measuring device at the time of removing the device, which is conventionally required, and to remove the measuring device from the predetermined position at the time of maintenance or trouble. As a result, necessary operations can be performed, so that the operation efficiency of the automation system can be improved.

【図面の簡単な説明】 【図1】本発明による光学式計測器の光源部の概略図で
ある。 【図2】本発明による実施例の概略図である。 【図3】従来の検出部と光源が一体化した光学式計測器
の概略図である。 【符号の説明】 1・・・・本体 2・・・・検出部 3・・・・蓋 4・・・・光源 5・・・・ブラケット 6・・・・ピン 7・・・・蓋 8・・・・段差 9・・・・ナット 10・・・光学式計測器本体の破断面 11・・・ブラケット 12・・・正極板 13・・・負極 14・・・特殊ミラー
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a light source unit of an optical measuring instrument according to the present invention. FIG. 2 is a schematic diagram of an embodiment according to the present invention. FIG. 3 is a schematic view of a conventional optical measuring instrument in which a detection unit and a light source are integrated. [Description of Signs] 1 ··· Main body 2 ··· Detector 3 ··· Lid 4 ···· Light source 5 ···· Bracket 6 ···· Pin 7 ···· Lid 8 · ··· Step 9 ··· Nut 10 ··· Broken surface 11 of optical measuring instrument main body ··· Bracket 12 ··· Positive plate 13 ··· Negative electrode 14

───────────────────────────────────────────────────── フロントページの続き Fターム(参考) 2G020 CB25 CB51 CB52 CD12 CD13 CD22 CD33 2G059 EE01 EE02 GG10 KK01 MM01   ────────────────────────────────────────────────── ─── Continuation of front page    F term (reference) 2G020 CB25 CB51 CB52 CD12 CD13                       CD22 CD33                 2G059 EE01 EE02 GG10 KK01 MM01

Claims (1)

【特許請求の範囲】 【請求項1】少なくとも受光部、演算処理部、光源部を
内蔵する光学式計測器において、光学式計測器内に組み
込まれた光源が外部との遮蔽用カバーと連接してあるこ
とを特徴とする光学式計測器。
Claims: 1. An optical measuring instrument having at least a light receiving section, an arithmetic processing section, and a light source section, wherein a light source incorporated in the optical measuring instrument is connected to a cover for shielding from the outside. An optical measuring instrument, characterized in that:
JP2001351376A 2001-11-16 2001-11-16 Optical measuring instrument Pending JP2003149048A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001351376A JP2003149048A (en) 2001-11-16 2001-11-16 Optical measuring instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001351376A JP2003149048A (en) 2001-11-16 2001-11-16 Optical measuring instrument

Publications (1)

Publication Number Publication Date
JP2003149048A true JP2003149048A (en) 2003-05-21

Family

ID=19163695

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001351376A Pending JP2003149048A (en) 2001-11-16 2001-11-16 Optical measuring instrument

Country Status (1)

Country Link
JP (1) JP2003149048A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013124877A (en) * 2011-12-13 2013-06-24 Hamamatsu Photonics Kk Optical measurement device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013124877A (en) * 2011-12-13 2013-06-24 Hamamatsu Photonics Kk Optical measurement device

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