JP5615944B2 - ダイレクト部品マークリーダ用の低プロファイル照明 - Google Patents
ダイレクト部品マークリーダ用の低プロファイル照明 Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10712—Fixed beam scanning
- G06K7/10722—Photodetector array or CCD scanning
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Description
大部分のダイレクト部品マーキング用途のために、2次元記号が使用される。何故ならば、そのような記号は、比較的コンパクトなサイズを維持しつつ、十分な多くの文字をエンコードすることができるからである。読み出し可能性(判読率)を改善するために、誤り訂正方式が、大抵の2次元記号の利用(symbology)において典型的には含まれる。該2次元記号は、材料の構成、部品用途、及び環境条件に依存して、様々な方法を用いて、部品上か又は構成要素上に直接的にマークされる。一般的な方法には、ドットピーニング(dot peening)、レーザ、及び電子化学エッチングが含まれる。
図1は、1次元か又は2次元のバーコードか、又はデータマトリクス記号のようなマーク又は記号の画像を取得するタイプの、ハンドヘルド動作用に構成された、例示的な工業用マークリーダ100を示す。内部プロセッサ(図示せず)が、取得された画像の解析を実施して、エンコードされた情報の文字列を提供するために、そのマークか又は記号をデコードする。
ハウジングと、
前記リーダの前に置かれた対象物上のマークの画像を取り込むために、前記ハウジング内において配置された撮像モジュールと、
複数の選択的に作動させられる照明器を含む照明器モジュールであって、前記ハウジング内において実装された、照明器モジュールと、
前記ハウジング内において実装された、組み込み型光学伝送器であって、該組み込み型光学伝送器は、暗視野照明伝送器であって、前記複数の選択的に作動させられる照明器のうちの少なくとも1つと光学的に協働して、前記対象物上に暗視野照明を投射する、暗視野照明伝送器と、明視野照明伝送器であって、前記複数の選択的に作動させられる照明器のうちの少なくとも1つと光学的に協働して、前記対象物上に明視野照明を投射する、明視野照明伝送器とを、有することからなる、組み込み型光学伝送器
とを備える、工業用識別マークリーダ。
構造フレームと、
前記フレーム内に組み込まれた暗視野照明伝送器と、
前記フレーム内に組み込まれ且つ前記暗視野照明伝送器の近傍にある、少なくとも1つの明視野照明伝送器
とを備える、光学伝送器。
ある視野を有する撮像モジュールであって、該視野内に置かれた対象物上のマークの画像を取り込むための、前記ハウジング内において実装された、撮像モジュールと、
複数の選択的に作動させられる照明器を含む照明器モジュールであって、前記ハウジング内において実装された、照明器モジュールと、
前記照明器モジュール内の前記複数の選択的に作動させられる照明器のうちの少なくとも1つと光学的に協働して、前記対象物上に暗視野照明を投射する、暗視野照明伝送器であって、前記ハウジング内において実装された、暗視野照明伝送器と、
前記視野の観察を可能にするための前記ハウジングを通した視界ポート
とを備える、ハンドヘルドダイレクト部品マークリーダ。
Claims (14)
- ダイレクト部品マークリーダ内において使用するための組み込み型光学伝送器であって、
暗視野照明伝送器であって、該暗視野照明伝送器を通過する光の方向を変更して対象物に暗視野照明を投射するものであり、及び、センサモジュールの光軸に沿った光路内の反射された照明に伝送経路を提供するよう構成された窓を含んだ、暗視野照明伝送器と、
前記暗視野照明伝送器の近傍にあり且つ前記暗視野照明伝送器とは分離された複数の明視野照明伝送器であって、前記対象物に明視野照明を投射するよう構成されており、窓が無い状態であり、及び前記光軸からオフセットされている状態である、明視野照明伝送器
とを備える、組み込み型光学伝送器。 - 成形されたか又は組み立てられたレンズを、前記明視野照明伝送器が含むことからなる、請求項1に記載の組み込み型光学伝送器。
- 前記レンズが、前記明視野照明の角度か又は配向を変更するよう構成されていることからなる、請求項2に記載の組み込み型光学伝送器。
- 前記明視野照明伝送器が、前記組み込み型光学伝送器の前方と、前記組み込み型光学伝送器の該前方と後方との両方と、のうちの少なくとも一方に提供される光学特性を含むことからなる、請求項1に記載の組み込み型光学伝送器。
- 角度付けられた先端部を前記暗視野照明伝送器が含み、前記ダイレクト部品マークリーダの前方の領域内に低角暗視野照明を直接投射する内部反射を生じさせるよう該角度付けられた先端部が構成されていることからなる、請求項1に記載の組み込み型光学伝送器。
- 少なくとも1つの暗視野照明器と、少なくとも1つの明視野照明器とを更に含む、請求項1に記載の組み込み型光学伝送器。
- 前記暗視野照明伝送器が前記少なくとも1つの暗視野照明器に光学的に位置合わせされる時には、前記明視野照明伝送器が前記少なくとも1つの明視野照明器に光学的に位置合わせされることとなり、且つ、前記少なくとも1つの暗視野照明器が前記少なくとも1つの明視野照明器に光学的に位置合わせされないこととなるように、前記明視野照明伝送器が前記暗視野照明伝送器と並べて置かれていることからなる、請求項6に記載の組み込み型光学伝送器。
- 識別マークリーダであって、
内部ルーメンを画定する照明伝送器であって、該内部ルーメンを通じて画像センサが対象物をとらえることからなる照明伝送器と、
光を前記照明伝送器に提供する複数の照明器を含む照明モジュール
とを備え、
前記照明伝送器が、複数の第1の光出口面と第2の光出口面とを含み、該複数の第1の光出口面によって、前記照明伝送器内からの前記光のうちの少なくとも一部が、該複数の第1の光出口面の外へと該複数の第1の光出口面を通過して、前記対象物上に明視野照明を提供することが可能となるように該複数の第1の光出口面が構成されており、及び、前記第2の光出口面が、前記複数の第1の光出口面の近傍にあり且つ前記複数の第1の光出口面とは分離されており、該第2の光出口面によって、前記照明伝送器内からの前記光のうちの少なくとも他の部分が、該第2の光出口面の外へと該第2の光出口面を通過して、前記対象物上に暗視野照明を提供することが可能となるように該第2の光出口面がさらに構成されていることからなる、識別マークリーダ。 - 前記複数の第1の光出口面と前記第2の光出口面とのうちの少なくとも一方が平面であることからなる、請求項8に記載の識別マークリーダ。
- 前記複数の第1の光出口面と前記第2の光出口面とのうちの少なくとも一方には、角度が付けられていることからなる、請求項8に記載の識別マークリーダ。
- 前記複数の第1の光出口面と前記第2の光出口面とのうちの少なくとも一方は、曲げられてることからなる、請求項8に記載の識別マークリーダ。
- 前記複数の第1の光出口面と前記第2の光出口面とのうちの少なくとも一方は、拡散性のものであることからなる、請求項8に記載の識別マークリーダ。
- 前記複数の照明器が、少なくとも1つの暗視野照明器と少なくとも1つの明視野照明器とを含むことからなる、請求項8に記載の識別マークリーダ。
- 前記少なくとも1つの暗視野照明器と前記少なくとも1つの明視野照明器とが、作動可能に分離されていることからなる、請求項13に記載の識別マークリーダ。
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US11/019,763 | 2004-12-21 | ||
US11/019,763 US7823789B2 (en) | 2004-12-21 | 2004-12-21 | Low profile illumination for direct part mark readers |
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JP2013000459A Expired - Fee Related JP5615944B2 (ja) | 2004-12-21 | 2013-01-07 | ダイレクト部品マークリーダ用の低プロファイル照明 |
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JP2008524746A (ja) | 2008-07-10 |
US8672227B2 (en) | 2014-03-18 |
US20060131419A1 (en) | 2006-06-22 |
JP5198873B2 (ja) | 2013-05-15 |
US20150021396A1 (en) | 2015-01-22 |
US9495573B2 (en) | 2016-11-15 |
WO2006068848A1 (en) | 2006-06-29 |
US7823789B2 (en) | 2010-11-02 |
JP2013080515A (ja) | 2013-05-02 |
US20110024506A1 (en) | 2011-02-03 |
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