LASER IRRADIATION HEAD AND ULTRASONIC WAVE MEASUREMENT SYSTEM
PROBLEM TO BE SOLVED: To provide a laser irradiation head for preventing a difference from occurring between the displacement amount of a lens and the displacement amount of the focal position of the laser.SOLUTION: In order to generate a laser-induced breakdown in a liquid 6 in a water tank 8, a la...
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| description | PROBLEM TO BE SOLVED: To provide a laser irradiation head for preventing a difference from occurring between the displacement amount of a lens and the displacement amount of the focal position of the laser.SOLUTION: In order to generate a laser-induced breakdown in a liquid 6 in a water tank 8, a laser irradiation head 30 collects laser L and radiates it into water tank 8. The laser irradiation head 30 includes: a lens 13 for collecting the laser L; a cylindrical body for storing the lens 13 inside it; and a cover 18 that is closer to the irradiation side of the laser L than the lens 13 is, has the same refraction index as that of the wall of the water tank 8, and passes the laser L. A closed space for storing the liquid 6 is formed between the lens 13 and the cover 18.SELECTED DRAWING: Figure 1
【課題】レンズの変位量とレーザの焦点位置の変位量との間にズレが発生するのを防ぐレーザ照射ヘッドを提供する。【解決手段】レーザ照射ヘッド３０は、水槽８の液体６中でレーザ誘起ブレークダウンを生じさせるために水槽８内に向けてレーザＬを集光して照射する。レーザ照射ヘッド３０は、レーザＬを集光するレンズ１３と、レンズ１３を内部に収容する筒体と、レンズ１３よりもレーザＬの照射側に設けられかつ水槽８の壁と屈折率が同じであると共にレーザＬを透過させるカバー１８とを備えている。レンズ１３とカバー１８との間に、液体６を収容する閉空間が形成されている。【選択図】図１ |
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【課題】レンズの変位量とレーザの焦点位置の変位量との間にズレが発生するのを防ぐレーザ照射ヘッドを提供する。【解決手段】レーザ照射ヘッド３０は、水槽８の液体６中でレーザ誘起ブレークダウンを生じさせるために水槽８内に向けてレーザＬを集光して照射する。レーザ照射ヘッド３０は、レーザＬを集光するレンズ１３と、レンズ１３を内部に収容する筒体と、レンズ１３よりもレーザＬの照射側に設けられかつ水槽８の壁と屈折率が同じであると共にレーザＬを透過させるカバー１８とを備えている。レンズ１３とカバー１８との間に、液体６を収容する閉空間が形成されている。【選択図】図１</description><language>eng ; jpn</language><subject>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES ; MEASURING ; MEASURING ANGLES ; MEASURING AREAS ; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS ; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS ; PHYSICS ; TESTING</subject><creationdate>2018</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20181129&DB=EPODOC&CC=JP&NR=2018189610A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20181129&DB=EPODOC&CC=JP&NR=2018189610A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NANRI KOTA</creatorcontrib><title>LASER IRRADIATION HEAD AND ULTRASONIC WAVE MEASUREMENT SYSTEM</title><description>PROBLEM TO BE SOLVED: To provide a laser irradiation head for preventing a difference from occurring between the displacement amount of a lens and the displacement amount of the focal position of the laser.SOLUTION: In order to generate a laser-induced breakdown in a liquid 6 in a water tank 8, a laser irradiation head 30 collects laser L and radiates it into water tank 8. The laser irradiation head 30 includes: a lens 13 for collecting the laser L; a cylindrical body for storing the lens 13 inside it; and a cover 18 that is closer to the irradiation side of the laser L than the lens 13 is, has the same refraction index as that of the wall of the water tank 8, and passes the laser L. A closed space for storing the liquid 6 is formed between the lens 13 and the cover 18.SELECTED DRAWING: Figure 1
【課題】レンズの変位量とレーザの焦点位置の変位量との間にズレが発生するのを防ぐレーザ照射ヘッドを提供する。【解決手段】レーザ照射ヘッド３０は、水槽８の液体６中でレーザ誘起ブレークダウンを生じさせるために水槽８内に向けてレーザＬを集光して照射する。レーザ照射ヘッド３０は、レーザＬを集光するレンズ１３と、レンズ１３を内部に収容する筒体と、レンズ１３よりもレーザＬの照射側に設けられかつ水槽８の壁と屈折率が同じであると共にレーザＬを透過させるカバー１８とを備えている。レンズ１３とカバー１８との間に、液体６を収容する閉空間が形成されている。【選択図】図１</description><subject>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</subject><subject>MEASURING</subject><subject>MEASURING ANGLES</subject><subject>MEASURING AREAS</subject><subject>MEASURING IRREGULARITIES OF SURFACES OR CONTOURS</subject><subject>MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS</subject><subject>PHYSICS</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2018</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLD1cQx2DVLwDApydPF0DPH091PwcHV0UXD0c1EI9QkJcgz29_N0Vgh3DHNV8HV1DA4NcvV19QtRCI4MDnH15WFgTUvMKU7lhdLcDEpuriHOHrqpBfnxqcUFicmpeakl8V4BRgaGFoYWlmaGBo7GRCkCAIxjKnQ</recordid><startdate>20181129</startdate><enddate>20181129</enddate><creator>NANRI KOTA</creator><scope>EVB</scope></search><sort><creationdate>20181129</creationdate><title>LASER IRRADIATION HEAD AND ULTRASONIC WAVE MEASUREMENT SYSTEM</title><author>NANRI KOTA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2018189610A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2018</creationdate><topic>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</topic><topic>MEASURING</topic><topic>MEASURING ANGLES</topic><topic>MEASURING AREAS</topic><topic>MEASURING IRREGULARITIES OF SURFACES OR CONTOURS</topic><topic>MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS</topic><topic>PHYSICS</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>NANRI KOTA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>NANRI KOTA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>LASER IRRADIATION HEAD AND ULTRASONIC WAVE MEASUREMENT SYSTEM</title><date>2018-11-29</date><risdate>2018</risdate><abstract>PROBLEM TO BE SOLVED: To provide a laser irradiation head for preventing a difference from occurring between the displacement amount of a lens and the displacement amount of the focal position of the laser.SOLUTION: In order to generate a laser-induced breakdown in a liquid 6 in a water tank 8, a laser irradiation head 30 collects laser L and radiates it into water tank 8. The laser irradiation head 30 includes: a lens 13 for collecting the laser L; a cylindrical body for storing the lens 13 inside it; and a cover 18 that is closer to the irradiation side of the laser L than the lens 13 is, has the same refraction index as that of the wall of the water tank 8, and passes the laser L. A closed space for storing the liquid 6 is formed between the lens 13 and the cover 18.SELECTED DRAWING: Figure 1
【課題】レンズの変位量とレーザの焦点位置の変位量との間にズレが発生するのを防ぐレーザ照射ヘッドを提供する。【解決手段】レーザ照射ヘッド３０は、水槽８の液体６中でレーザ誘起ブレークダウンを生じさせるために水槽８内に向けてレーザＬを集光して照射する。レーザ照射ヘッド３０は、レーザＬを集光するレンズ１３と、レンズ１３を内部に収容する筒体と、レンズ１３よりもレーザＬの照射側に設けられかつ水槽８の壁と屈折率が同じであると共にレーザＬを透過させるカバー１８とを備えている。レンズ１３とカバー１８との間に、液体６を収容する閉空間が形成されている。【選択図】図１</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS TESTING |
| title | LASER IRRADIATION HEAD AND ULTRASONIC WAVE MEASUREMENT SYSTEM |
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