JP6451821B1 - 検査システム及び検査方法 - Google Patents
検査システム及び検査方法 Download PDFInfo
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
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Abstract
Description
照射光の光軸に対して放射状に存在する場合に、前記検査対象上の点Pの明るさが、前記点Pより反射される反射光の立体角と撮像装置Cが前記点Pに対して形成する観察立体角との包含関係によってどのように変化するかを記述する。
その変化を捕捉するために十分な大きさを持つ場合を考えており、図11の(a)では、前記観察立体角OSが前記立体角領域RS1に完全に包含されている場合を示している。このときに、前記撮像装置Cにおいて、前記異なる光物性の光をそれぞれ選択的に検出できる第2のフィルター手段を備えておれば、前記検査対象上の点Pの明るさは、前記立体角領域RS1のもつ光属性の光と、前記立体角領域RS2のもつ光属性の光と、前記立体角領域RS3のもつ光属性の光の、ある割合で表される明るさになる。
100 :検査用照明装置
1 :面光源
11 :光射出面
2 :レンズ
4 :ハーフミラー
C :撮像装置
L1 :照射光路
L2 :反射・透過光路
M1 :第1遮光マスク(及びその遮光部)
F1 :第1フィルター手段
F11 :第1フィルター手段の或る光属性1を持つ光を透過する部分
F12 :第1フィルター手段の或る光属性2を持つ光を透過する部分
F13 :第1フィルター手段の或る光属性3を持つ光を透過する部分
F2 :第2フィルター手段
F3 :第3フィルター手段
F4 :第4フィルター手段
M2 :第2遮光マスク
W :検査対象
P :検査対象W上の或る点
P′ :検査対象W上の別の点
P1 :レンズ2の物体側焦点
P2 :レンズ2からPIと同一距離の点
P3 :レンズ2からPIと同一距離の点
P4 :レンズ2の物体側焦点以遠の任意の点
P5 :レンズ2の物体側焦点以遠の任意の点
IS :照射立体角
IS′ :別の照射立体角
IS1 :照射立体角内の異なる光属性を持つ立体角領域1
IS2 :照射立体角内の異なる光属性を持つ立体角領域2
IS3 :照射立体角内の異なる光属性を持つ立体角領域3
OS :観察立体角
RS :反射光の立体角
RS′ :反射光の立体角
RS1 :反射光の立体角内の異なる光属性を持つ立体角領域1
RS2 :反射光の立体角内の異なる光属性を持つ立体角領域2
RS3 :反射光の立体角内の異なる光属性を持つ立体角領域3
TS :透過光の立体角
Claims (5)
- 検査対象に検査光を照射する検査用照明装置であって、前記検査対象の各点に照射される検査光の照射立体角を、異なる光属性を持つ複数の立体角領域が光軸を中心として放射状に配置され、円周方向に於いて隣接するように設定できる検査用照明装置と、前記検査対象の各点において反射又は透過する物体光を撮像する撮像装置であって、前記物体光の異なる光属性を選択的に撮像可能な撮像装置とを備え、前記検査対象の各点において、前記物体光の光軸の変化、若しくは、撮像装置によって形成される前記検査対象の各点に対する観察立体角に対する前記物体光の立体角の変化を、前記観察立体角との包含関係において、前記検査光の前記複数の立体角領域に起因する複数の光属性を持つ前記物体光の変化として検知し、その複数の光属性ごとの前記物体光の変化量によって、前記検査対象の各点における複数方向の傾きに対して傾きの方向と、その傾きの角度を特定し、前記検査対象の表面の三次元性状を特定することが可能なことを特徴とする検査システム。
- 前記検査用照明装置において、前記検査光の照射方向を変え、なおかつ前記検査対象からの光を透過して前記撮像装置で撮像できるようにするためのハ−フミラ−を備え、前記検査光の前記検査対象の各点に対する照射立体角として、前記立体角領域と前記撮像装置の前記検査対象の各点に対する観察立体角の光軸を略一致させたことを特徴とする請求項1に記載の検査システム。
- 前記検査用照明装置で前記検査対象に照射される検査光の照射立体角において、前記撮像装置の前記検査対象の各点における観察立体角の形状及び大きさ及び傾きに基づいて、前記検査対象の各点における前記立体角領域の形状及び大きさ及び傾きが、所望の濃淡情報を得るために好適に設定、若しくは相対的に前記立体角領域と前記観察立体角の形状及び大きさ及び傾きが略均一に設定されていることを特徴とする請求項1、又は請求項2に記載の検査システム。
- 前記検査対象の各点における前記観察立体角が、前記照射立体角より小さく設定され、前記検査対象の各点から返される前記物体光の光軸の傾きが変化したときに、その変化を、複数の光属性を持つ前記物体光の変化として検知することができるよう、前記照射立体角内に形成される異なる光属性を持つ複数の立体角領域を、略連続的に変化させたことを特徴とする請求項1に記載の検査システム。
- 請求項1から請求項4の何れかに記載の検査システムを用いて、前記検査対象の三次元形状を、前記物体光の複数の光属性の変化をもって特定する検査方法。
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JP2017233858A JP6451821B1 (ja) | 2017-12-05 | 2017-12-05 | 検査システム及び検査方法 |
US16/622,030 US10883944B2 (en) | 2017-12-05 | 2018-03-17 | Inspection system and method of inspection |
KR1020197034491A KR102061163B1 (ko) | 2017-12-05 | 2018-03-17 | 검사 시스템 및 검사 방식 |
PCT/JP2018/010667 WO2019111426A1 (ja) | 2017-12-05 | 2018-03-17 | 検査システム及び検査方式 |
EP18887118.0A EP3620777B1 (en) | 2017-12-05 | 2018-03-17 | Inspection system and inspection method |
CN201880035206.4A CN110691966B (zh) | 2017-12-05 | 2018-03-17 | 检查***以及检查方式 |
SG11202003241TA SG11202003241TA (en) | 2017-12-05 | 2018-03-17 | Inspection system and method of inspection |
IL274772A IL274772B (en) | 2017-12-05 | 2020-05-19 | Test system and test method |
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EP (1) | EP3620777B1 (ja) |
JP (1) | JP6451821B1 (ja) |
KR (1) | KR102061163B1 (ja) |
CN (1) | CN110691966B (ja) |
IL (1) | IL274772B (ja) |
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Cited By (6)
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CN110068534A (zh) * | 2019-05-17 | 2019-07-30 | 北京领邦智能装备股份公司 | 检测用精准出光装置和测量仪 |
WO2021107027A1 (ja) * | 2019-11-29 | 2021-06-03 | マシンビジョンライティング株式会社 | 形状復元方法及び画像測定装置 |
WO2022107725A1 (ja) * | 2020-11-17 | 2022-05-27 | マシンビジョンライティング株式会社 | 画像観察装置及びその照明光学系 |
WO2024014273A1 (ja) * | 2022-07-13 | 2024-01-18 | パナソニックIpマネジメント株式会社 | 検査システム及びこれを用いた物品の表面の傾斜角補正方法 |
JP7458617B1 (ja) | 2023-12-02 | 2024-04-01 | マシンビジョンライティング株式会社 | 検査用照明装置及び照明光学系及び検査システム |
WO2024116634A1 (ja) * | 2022-11-28 | 2024-06-06 | パナソニックIpマネジメント株式会社 | 検査システム |
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JP2021085815A (ja) * | 2019-11-29 | 2021-06-03 | シーシーエス株式会社 | 光照射装置、検査システム、及び、光照射方法 |
JP6799272B1 (ja) * | 2020-06-14 | 2020-12-16 | マシンビジョンライティング株式会社 | 検査測定システム及び検査測定方法 |
US11630070B2 (en) | 2020-06-14 | 2023-04-18 | Machine Vision Lighting Inc. | Inspection and measurement system, and inspection and measurement method |
JP2023139653A (ja) * | 2022-03-22 | 2023-10-04 | 株式会社東芝 | 光学検査装置、処理装置、光学検査方法、及び、光学検査プログラム |
WO2024116674A1 (ja) * | 2022-11-29 | 2024-06-06 | パナソニックIpマネジメント株式会社 | 検査システム |
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JP2010112941A (ja) * | 2008-10-10 | 2010-05-20 | Toyota Motor Corp | 表面検査装置 |
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WO2017051447A1 (ja) * | 2015-09-22 | 2017-03-30 | マシンビジョンライティング株式会社 | 検査用照明装置及び検査システム |
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KR20230002839A (ko) | 2020-11-17 | 2023-01-05 | 머신 비전 라이팅 가부시키가이샤 | 화상 관찰 장치 및 그 조명 광학계 |
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WO2024014273A1 (ja) * | 2022-07-13 | 2024-01-18 | パナソニックIpマネジメント株式会社 | 検査システム及びこれを用いた物品の表面の傾斜角補正方法 |
WO2024116634A1 (ja) * | 2022-11-28 | 2024-06-06 | パナソニックIpマネジメント株式会社 | 検査システム |
JP7458617B1 (ja) | 2023-12-02 | 2024-04-01 | マシンビジョンライティング株式会社 | 検査用照明装置及び照明光学系及び検査システム |
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US10883944B2 (en) | 2021-01-05 |
IL274772A (en) | 2020-07-30 |
US20200158657A1 (en) | 2020-05-21 |
SG11202003241TA (en) | 2020-05-28 |
CN110691966B (zh) | 2022-08-12 |
KR102061163B1 (ko) | 2019-12-31 |
IL274772B (en) | 2021-07-29 |
WO2019111426A1 (ja) | 2019-06-13 |
CN110691966A (zh) | 2020-01-14 |
EP3620777A4 (en) | 2020-09-23 |
JP2019100930A (ja) | 2019-06-24 |
KR20190138868A (ko) | 2019-12-16 |
EP3620777B1 (en) | 2024-06-05 |
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