JP5583120B2 - オブジェクトを検出するための光電スイッチおよび方法 - Google Patents
オブジェクトを検出するための光電スイッチおよび方法 Download PDFInfo
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- JP5583120B2 JP5583120B2 JP2011513870A JP2011513870A JP5583120B2 JP 5583120 B2 JP5583120 B2 JP 5583120B2 JP 2011513870 A JP2011513870 A JP 2011513870A JP 2011513870 A JP2011513870 A JP 2011513870A JP 5583120 B2 JP5583120 B2 JP 5583120B2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0232—Optical elements or arrangements associated with the device
- H01L31/02325—Optical elements or arrangements associated with the device the optical elements not being integrated nor being directly associated with the device
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/12—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto
- H01L31/16—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the semiconductor device sensitive to radiation being controlled by the light source or sources
- H01L31/167—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the semiconductor device sensitive to radiation being controlled by the light source or sources the light sources and the devices sensitive to radiation all being semiconductor devices characterised by at least one potential or surface barrier
- H01L31/173—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the semiconductor device sensitive to radiation being controlled by the light source or sources the light sources and the devices sensitive to radiation all being semiconductor devices characterised by at least one potential or surface barrier formed in, or on, a common substrate
Description
Claims (15)
- 半導体エレメント(1)を有する光電スイッチにおいて、
前記半導体エレメント(1)は、
支持体(2)と、
前記支持体(2)の上面(21)に設けられ電磁放射を検出する少なくとも2つの検出半導体チップ(4)と、
前記支持体(2)の上面(21)に設けられ電磁放射を送出する少なくとも1つの送出半導体チップ(3)と、
前記支持体(2)の上面(21)に設けられ、前記検出半導体チップ(4)によって受信される電磁放射および/または前記送出半導体チップ(3)によって放出される電磁放射の角度領域を制限する、少なくとも1つの方向選択素子(5)と、
を有し、
前記検出半導体チップ(4)によって受信される電磁放射の主放射軸(V)は、前記送出半導体チップ(3)によって放出される電磁放射の主放射軸(U)に対して傾斜しており、
前記方向選択素子は、前記検出半導体チップ(4)によって検出される電磁放射を透過しない材料から成る複数のバリア(5)によって形成されており、
前記バリア(5)は、前記バリア(5)および前記検出半導体チップ(4)が前記支持体(2)の上面(21)に垂直に平行投影された場合に、前記バリア(5)の投影面と前記検出半導体チップ(4)の投影面とが少なくとも部分的に重なり合うように成形され、電磁放射が前記上面(21)に垂直に当たる場合に影(6)が生じ、前記影(6)が前記検出半導体チップ(4)を少なくとも部分的に覆い、
死角領域が、前記検出半導体チップ(4)の間かつ前記送出半導体チップ(3)の真上に存在し、検出すべきオブジェクトが前記死角領域に存在する場合、前記検出半導体チップ(4)は前記死角領域から電磁放射を受信しない、
光電スイッチ。 - 前記主放射軸(U,V)は相互に、15°以上45°以下の角度で傾斜する、
請求項1記載の光電スイッチ。 - 前記バリア(5)は、前記検出半導体チップ(4)から離隔されている、請求項1または2記載の光電スイッチ。
- 前記バリア(5)は、それぞれ、前記送出半導体チップ(3)と前記検出半導体チップ(4)との間に設けられており、
前記検出半導体チップ(4)が電磁放射を受信する検出領域は重ならない、
請求項1から3までのいずれか1項記載の光電スイッチ。 - 前記バリア(5)は接着材によって前記支持体(2)の上面(21)に取り付けられている、
請求項1から4までのいずれか1項記載の光電スイッチ。 - 前記支持体(2)の上面(21)に配置される、電磁放射を検出する前記検出半導体チップ(4)は2つより多く、前記検出すべきオブジェクトを2次元で位置検出可能である、
請求項1から5までのいずれか1項記載の光電スイッチ。 - 前記検出半導体チップ(4)の主放射軸(V)の方向は相互に平行である、
請求項6記載の光電スイッチ。 - 前記送出半導体チップ(3)は、振幅変調された放射パルスまたは振幅変調されない放射パルスを時分割多重方式で送出する、
請求項1から7までのいずれか1項記載の光電スイッチ。 - 前記バリア(5)はL字形および/またはアーチ形および/または斜行するように成形されている、
請求項1から8までのいずれか1項記載の光電スイッチ。 - 前記半導体チップ(3,4)のうち少なくとも1つの上方で行われる電磁放射の導波を改善するための少なくとも1つの光学的素子(7)が、前記半導体チップ(3,4)の放射経路に配置される、
請求項1から9までのいずれか1項記載の光電スイッチ。 - 電磁放射を検出する前記検出半導体チップ(4)は、特殊用途集積回路であるか、またはフォトトランジスタであるか、またはフォトダイオードであるか、またはフォトレジスタである、
請求項1から10までのいずれか1項記載の光電スイッチ。 - 電磁放射を送出する前記送出半導体チップ(3)はレーザダイオードまたはLEDであり、
前記バリア(5)が前記支持体(2)の前記上面(21)に垂直に平行投影される場合には、前記検出半導体チップ(4)は前記バリア(5)によって完全に覆われている、
請求項4記載の光電スイッチ。 - 前記送出半導体チップ(3)は、少なくとも2つ設けられ、
前記送出半導体チップ(3)は、相互に異なる波長を有する電磁放射を送出する、
請求項1から12までのいずれか1項記載の光電スイッチ。 - 請求項1から13までのいずれか1項記載の光電スイッチによってオブジェクトを検出する方法であって、
前記検出半導体チップ(4)において検出された電磁放射の強度を、後置接続された評価ユニットにおいて評価し、
前記電磁放射の強度の大きさに基づいて、前記オブジェクトと前記半導体エレメント(1)との間の間隔を推定する方法において、
前記半導体エレメント(1)において、前記検出半導体チップ(4)を少なくとも2つ使用して電磁放射の検出を行い、
前記評価ユニットにおいて、前記少なくとも2つの検出半導体チップ(4)の強度を評価し、
検出された前記電磁放射の強度に基づき、電磁放射を送出する前記送出半導体チップ(3)に対する前記オブジェクトの相対位置を求める、
ことを特徴とする方法。 - 別の送出半導体チップ(3)および/または別の検出半導体チップ(4)を使用して、前記オブジェクトを検出する分解能を上昇させ、
前記半導体チップ(3,4)の放射経路において光学的素子(7)を使用して、オブジェクトを検出する感度を上昇させる、
請求項14記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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DE102008029467A DE102008029467A1 (de) | 2008-06-20 | 2008-06-20 | Halbleiterbauelement, Verwendung eines Halbleiterbauelements als Näherungssensor sowie Verfahren zum Detektieren von Objekten |
DE102008029467.5 | 2008-06-20 | ||
PCT/DE2009/000864 WO2009152820A2 (de) | 2008-06-20 | 2009-06-18 | Lichtschranke sowie verfahren zum detektieren von objekten |
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JP2011525239A JP2011525239A (ja) | 2011-09-15 |
JP2011525239A5 JP2011525239A5 (ja) | 2012-04-12 |
JP5583120B2 true JP5583120B2 (ja) | 2014-09-03 |
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US (1) | US8711334B2 (ja) |
EP (1) | EP2288943B1 (ja) |
JP (1) | JP5583120B2 (ja) |
KR (1) | KR101581061B1 (ja) |
CN (1) | CN101971056B (ja) |
DE (1) | DE102008029467A1 (ja) |
WO (1) | WO2009152820A2 (ja) |
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2008
- 2008-06-20 DE DE102008029467A patent/DE102008029467A1/de not_active Withdrawn
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2009
- 2009-06-18 JP JP2011513870A patent/JP5583120B2/ja active Active
- 2009-06-18 WO PCT/DE2009/000864 patent/WO2009152820A2/de active Application Filing
- 2009-06-18 CN CN200980109064.2A patent/CN101971056B/zh active Active
- 2009-06-18 EP EP09765456.0A patent/EP2288943B1/de active Active
- 2009-06-18 KR KR1020107019722A patent/KR101581061B1/ko active IP Right Grant
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Publication number | Publication date |
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EP2288943B1 (de) | 2019-12-18 |
CN101971056A (zh) | 2011-02-09 |
WO2009152820A2 (de) | 2009-12-23 |
JP2011525239A (ja) | 2011-09-15 |
EP2288943A2 (de) | 2011-03-02 |
KR20110031272A (ko) | 2011-03-25 |
US8711334B2 (en) | 2014-04-29 |
DE102008029467A1 (de) | 2009-12-24 |
KR101581061B1 (ko) | 2015-12-29 |
CN101971056B (zh) | 2014-02-05 |
WO2009152820A3 (de) | 2010-06-10 |
US20110188025A1 (en) | 2011-08-04 |
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