ZOOM LENS SYSTEM

ZOOM LENS SYSTEM

PROBLEM TO BE SOLVED: To provide a zoom lens system having a high zoom ratio such as ten or more in spite of having a simple constitution. SOLUTION: This lens system is constituted of a 1st lens group Gr1 having positive power, a 2nd lens group Gr2 having negative power, a 3rd lens group Gr3 having...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: ARIMOTO TETSUYA
Format: Patent
Sprache:eng
Schlagworte:
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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 ARIMOTO TETSUYA
description PROBLEM TO BE SOLVED: To provide a zoom lens system having a high zoom ratio such as ten or more in spite of having a simple constitution. SOLUTION: This lens system is constituted of a 1st lens group Gr1 having positive power, a 2nd lens group Gr2 having negative power, a 3rd lens group Gr3 having positive power and a 4th lens group Gr4 having positive power in order from the object side. In the case of performing zooming from the wide angle end to telephoto end, at least the 1st, the 3rd and the 4th lens groups Gr1, Gr3 and Gr4 are moved to the object side and the 2nd, the 3rd and the 4th lens groups Gr2, Gr3 and Gr4 have at least one aspherical surface, respectively.
format Patent
fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_JPH11352400A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>JPH11352400A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_JPH11352400A3</originalsourceid><addsrcrecordid>eNrjZBCI8vf3VfBx9QtWCI4MDnH15WFgTUvMKU7lhdLcDIpuriHOHrqpBfnxqcUFicmpeakl8V4BHoaGxqZGJgYGjsbEqAEADxodtQ</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>ZOOM LENS SYSTEM</title><source>esp@cenet</source><creator>ARIMOTO TETSUYA</creator><creatorcontrib>ARIMOTO TETSUYA</creatorcontrib><description>PROBLEM TO BE SOLVED: To provide a zoom lens system having a high zoom ratio such as ten or more in spite of having a simple constitution. SOLUTION: This lens system is constituted of a 1st lens group Gr1 having positive power, a 2nd lens group Gr2 having negative power, a 3rd lens group Gr3 having positive power and a 4th lens group Gr4 having positive power in order from the object side. In the case of performing zooming from the wide angle end to telephoto end, at least the 1st, the 3rd and the 4th lens groups Gr1, Gr3 and Gr4 are moved to the object side and the 2nd, the 3rd and the 4th lens groups Gr2, Gr3 and Gr4 have at least one aspherical surface, respectively.</description><edition>6</edition><language>eng</language><subject>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS ; OPTICS ; PHYSICS</subject><creationdate>1999</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&amp;date=19991224&amp;DB=EPODOC&amp;CC=JP&amp;NR=H11352400A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19991224&amp;DB=EPODOC&amp;CC=JP&amp;NR=H11352400A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ARIMOTO TETSUYA</creatorcontrib><title>ZOOM LENS SYSTEM</title><description>PROBLEM TO BE SOLVED: To provide a zoom lens system having a high zoom ratio such as ten or more in spite of having a simple constitution. SOLUTION: This lens system is constituted of a 1st lens group Gr1 having positive power, a 2nd lens group Gr2 having negative power, a 3rd lens group Gr3 having positive power and a 4th lens group Gr4 having positive power in order from the object side. In the case of performing zooming from the wide angle end to telephoto end, at least the 1st, the 3rd and the 4th lens groups Gr1, Gr3 and Gr4 are moved to the object side and the 2nd, the 3rd and the 4th lens groups Gr2, Gr3 and Gr4 have at least one aspherical surface, respectively.</description><subject>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</subject><subject>OPTICS</subject><subject>PHYSICS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1999</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBCI8vf3VfBx9QtWCI4MDnH15WFgTUvMKU7lhdLcDIpuriHOHrqpBfnxqcUFicmpeakl8V4BHoaGxqZGJgYGjsbEqAEADxodtQ</recordid><startdate>19991224</startdate><enddate>19991224</enddate><creator>ARIMOTO TETSUYA</creator><scope>EVB</scope></search><sort><creationdate>19991224</creationdate><title>ZOOM LENS SYSTEM</title><author>ARIMOTO TETSUYA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH11352400A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1999</creationdate><topic>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</topic><topic>OPTICS</topic><topic>PHYSICS</topic><toplevel>online_resources</toplevel><creatorcontrib>ARIMOTO TETSUYA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ARIMOTO TETSUYA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>ZOOM LENS SYSTEM</title><date>1999-12-24</date><risdate>1999</risdate><abstract>PROBLEM TO BE SOLVED: To provide a zoom lens system having a high zoom ratio such as ten or more in spite of having a simple constitution. SOLUTION: This lens system is constituted of a 1st lens group Gr1 having positive power, a 2nd lens group Gr2 having negative power, a 3rd lens group Gr3 having positive power and a 4th lens group Gr4 having positive power in order from the object side. In the case of performing zooming from the wide angle end to telephoto end, at least the 1st, the 3rd and the 4th lens groups Gr1, Gr3 and Gr4 are moved to the object side and the 2nd, the 3rd and the 4th lens groups Gr2, Gr3 and Gr4 have at least one aspherical surface, respectively.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language eng
recordid cdi_epo_espacenet_JPH11352400A
source esp@cenet
subjects OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
title ZOOM LENS SYSTEM
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-08T23%3A20%3A35IST&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=ARIMOTO%20TETSUYA&rft.date=1999-12-24&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EJPH11352400A%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