MECHANISM AND METHOD FOR DETECTING FOCUS
PROBLEM TO BE SOLVED: To provide a focus detecting mechanism which detects a focus using image signals for which a sample image is captured and further detects highly accurate focus position. SOLUTION: The focus detecting mechanism includes: an illumination light source 1 for performing emission to...
Gespeichert in:
| Hauptverfasser: | , , , |
|---|---|
| Format: | Patent |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | |
| container_title | |
| container_volume | |
| creator | KUSUSE HARUHIKO MIYAZAKI KOJI NOZAWA HIROTO TAKIZAWA HIDERO |
| description | PROBLEM TO BE SOLVED: To provide a focus detecting mechanism which detects a focus using image signals for which a sample image is captured and further detects highly accurate focus position. SOLUTION: The focus detecting mechanism includes: an illumination light source 1 for performing emission to a sample; an imaging optical system including a first photodetection means 23 for outputting the image signal of the sample; a relative distance change means 9 for changing a distance between the sample and the focus of an objective lens; a control means 32 for driving the illumination light source; a position detection means 11 for detecting the position in the optical axis direction of the objective lens or a sample stage; a second photodetection means 4 for monitoring the light quantity of illumination light; and a signal processing apparatus 40 for outputting focusing position information. The signal processing apparatus 40 includes: a means 44 for calculating the contrast of the sample image; a means 45 for normalizing the calculated contrast using monitor signals; and a means 46 for detecting the position of the objective lens or the sample stage for maximizing the contrast on the basis of a series of relations between the normalized contrast and the position signal. COPYRIGHT: (C)2011,JPO&INPIT |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_JP2010243815A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>JP2010243815A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_JP2010243815A3</originalsourceid><addsrcrecordid>eNrjZNDwdXX2cPTzDPZVcPRzUfB1DfHwd1Fw8w9ScHENcXUO8fRzB_KcQ4N5GFjTEnOKU3mhNDeDkptriLOHbmpBfnxqcUFicmpeakm8V4CRgaGBkYmxhaGpozFRigAyBSQ-</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>MECHANISM AND METHOD FOR DETECTING FOCUS</title><source>esp@cenet</source><creator>KUSUSE HARUHIKO ; MIYAZAKI KOJI ; NOZAWA HIROTO ; TAKIZAWA HIDERO</creator><creatorcontrib>KUSUSE HARUHIKO ; MIYAZAKI KOJI ; NOZAWA HIROTO ; TAKIZAWA HIDERO</creatorcontrib><description>PROBLEM TO BE SOLVED: To provide a focus detecting mechanism which detects a focus using image signals for which a sample image is captured and further detects highly accurate focus position. SOLUTION: The focus detecting mechanism includes: an illumination light source 1 for performing emission to a sample; an imaging optical system including a first photodetection means 23 for outputting the image signal of the sample; a relative distance change means 9 for changing a distance between the sample and the focus of an objective lens; a control means 32 for driving the illumination light source; a position detection means 11 for detecting the position in the optical axis direction of the objective lens or a sample stage; a second photodetection means 4 for monitoring the light quantity of illumination light; and a signal processing apparatus 40 for outputting focusing position information. The signal processing apparatus 40 includes: a means 44 for calculating the contrast of the sample image; a means 45 for normalizing the calculated contrast using monitor signals; and a means 46 for detecting the position of the objective lens or the sample stage for maximizing the contrast on the basis of a series of relations between the normalized contrast and the position signal. COPYRIGHT: (C)2011,JPO&INPIT</description><language>eng</language><subject>BASIC ELECTRIC ELEMENTS ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ; ELECTRICITY ; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS ; OPTICS ; PHYSICS ; PICTORIAL COMMUNICATION, e.g. TELEVISION ; SEMICONDUCTOR DEVICES</subject><creationdate>2010</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=20101028&DB=EPODOC&CC=JP&NR=2010243815A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20101028&DB=EPODOC&CC=JP&NR=2010243815A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KUSUSE HARUHIKO</creatorcontrib><creatorcontrib>MIYAZAKI KOJI</creatorcontrib><creatorcontrib>NOZAWA HIROTO</creatorcontrib><creatorcontrib>TAKIZAWA HIDERO</creatorcontrib><title>MECHANISM AND METHOD FOR DETECTING FOCUS</title><description>PROBLEM TO BE SOLVED: To provide a focus detecting mechanism which detects a focus using image signals for which a sample image is captured and further detects highly accurate focus position. SOLUTION: The focus detecting mechanism includes: an illumination light source 1 for performing emission to a sample; an imaging optical system including a first photodetection means 23 for outputting the image signal of the sample; a relative distance change means 9 for changing a distance between the sample and the focus of an objective lens; a control means 32 for driving the illumination light source; a position detection means 11 for detecting the position in the optical axis direction of the objective lens or a sample stage; a second photodetection means 4 for monitoring the light quantity of illumination light; and a signal processing apparatus 40 for outputting focusing position information. The signal processing apparatus 40 includes: a means 44 for calculating the contrast of the sample image; a means 45 for normalizing the calculated contrast using monitor signals; and a means 46 for detecting the position of the objective lens or the sample stage for maximizing the contrast on the basis of a series of relations between the normalized contrast and the position signal. COPYRIGHT: (C)2011,JPO&INPIT</description><subject>BASIC ELECTRIC ELEMENTS</subject><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRICITY</subject><subject>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</subject><subject>OPTICS</subject><subject>PHYSICS</subject><subject>PICTORIAL COMMUNICATION, e.g. TELEVISION</subject><subject>SEMICONDUCTOR DEVICES</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2010</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNDwdXX2cPTzDPZVcPRzUfB1DfHwd1Fw8w9ScHENcXUO8fRzB_KcQ4N5GFjTEnOKU3mhNDeDkptriLOHbmpBfnxqcUFicmpeakm8V4CRgaGBkYmxhaGpozFRigAyBSQ-</recordid><startdate>20101028</startdate><enddate>20101028</enddate><creator>KUSUSE HARUHIKO</creator><creator>MIYAZAKI KOJI</creator><creator>NOZAWA HIROTO</creator><creator>TAKIZAWA HIDERO</creator><scope>EVB</scope></search><sort><creationdate>20101028</creationdate><title>MECHANISM AND METHOD FOR DETECTING FOCUS</title><author>KUSUSE HARUHIKO ; MIYAZAKI KOJI ; NOZAWA HIROTO ; TAKIZAWA HIDERO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2010243815A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2010</creationdate><topic>BASIC ELECTRIC ELEMENTS</topic><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRICITY</topic><topic>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</topic><topic>OPTICS</topic><topic>PHYSICS</topic><topic>PICTORIAL COMMUNICATION, e.g. TELEVISION</topic><topic>SEMICONDUCTOR DEVICES</topic><toplevel>online_resources</toplevel><creatorcontrib>KUSUSE HARUHIKO</creatorcontrib><creatorcontrib>MIYAZAKI KOJI</creatorcontrib><creatorcontrib>NOZAWA HIROTO</creatorcontrib><creatorcontrib>TAKIZAWA HIDERO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KUSUSE HARUHIKO</au><au>MIYAZAKI KOJI</au><au>NOZAWA HIROTO</au><au>TAKIZAWA HIDERO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>MECHANISM AND METHOD FOR DETECTING FOCUS</title><date>2010-10-28</date><risdate>2010</risdate><abstract>PROBLEM TO BE SOLVED: To provide a focus detecting mechanism which detects a focus using image signals for which a sample image is captured and further detects highly accurate focus position. SOLUTION: The focus detecting mechanism includes: an illumination light source 1 for performing emission to a sample; an imaging optical system including a first photodetection means 23 for outputting the image signal of the sample; a relative distance change means 9 for changing a distance between the sample and the focus of an objective lens; a control means 32 for driving the illumination light source; a position detection means 11 for detecting the position in the optical axis direction of the objective lens or a sample stage; a second photodetection means 4 for monitoring the light quantity of illumination light; and a signal processing apparatus 40 for outputting focusing position information. The signal processing apparatus 40 includes: a means 44 for calculating the contrast of the sample image; a means 45 for normalizing the calculated contrast using monitor signals; and a means 46 for detecting the position of the objective lens or the sample stage for maximizing the contrast on the basis of a series of relations between the normalized contrast and the position signal. COPYRIGHT: (C)2011,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | |
| ispartof | |
| issn | |
| language | eng |
| recordid | cdi_epo_espacenet_JP2010243815A |
| source | esp@cenet |
| subjects | BASIC ELECTRIC ELEMENTS ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION SEMICONDUCTOR DEVICES |
| title | MECHANISM AND METHOD FOR DETECTING FOCUS |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-27T11%3A29%3A57IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=KUSUSE%20HARUHIKO&rft.date=2010-10-28&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EJP2010243815A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |