ZOOM LENS BARREL

ZOOM LENS BARREL

PURPOSE:To obtain a zoom lens barrel for an infrared detecting device which is improved in the radial position precision of a lens of a movable part. CONSTITUTION:A roller bearing unit 22 is arranged at a 1st movable frame 3 and a 2nd movable frame 4, which engages the internal cylinder 12 of a fixe...

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Hauptverfasser: WADA AKIFUMI, KANEKO KEIICHIRO, NIITSU KAZUMI
Format: Patent
Sprache:eng
Schlagworte:
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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creator WADA AKIFUMI
KANEKO KEIICHIRO
NIITSU KAZUMI
description PURPOSE:To obtain a zoom lens barrel for an infrared detecting device which is improved in the radial position precision of a lens of a movable part. CONSTITUTION:A roller bearing unit 22 is arranged at a 1st movable frame 3 and a 2nd movable frame 4, which engages the internal cylinder 12 of a fixed frame 7 through the roller bearing 23 of the roller bearing unit 22; and the 1st movable frame 3 and 2nd movable frame 4 are slid by rolling to reduce the clearance and when the roll bearing 23 is assembled with an eccentric pin 24, the clearance is made adjustable.
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CONSTITUTION:A roller bearing unit 22 is arranged at a 1st movable frame 3 and a 2nd movable frame 4, which engages the internal cylinder 12 of a fixed frame 7 through the roller bearing 23 of the roller bearing unit 22; and the 1st movable frame 3 and 2nd movable frame 4 are slid by rolling to reduce the clearance and when the roll bearing 23 is assembled with an eccentric pin 24, the clearance is made adjustable.</description><edition>5</edition><language>eng</language><subject>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS ; OPTICS ; PHYSICS</subject><creationdate>1994</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=19940614&amp;DB=EPODOC&amp;CC=JP&amp;NR=H06167645A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19940614&amp;DB=EPODOC&amp;CC=JP&amp;NR=H06167645A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WADA AKIFUMI</creatorcontrib><creatorcontrib>KANEKO KEIICHIRO</creatorcontrib><creatorcontrib>NIITSU KAZUMI</creatorcontrib><title>ZOOM LENS BARREL</title><description>PURPOSE:To obtain a zoom lens barrel for an infrared detecting device which is improved in the radial position precision of a lens of a movable part. CONSTITUTION:A roller bearing unit 22 is arranged at a 1st movable frame 3 and a 2nd movable frame 4, which engages the internal cylinder 12 of a fixed frame 7 through the roller bearing 23 of the roller bearing unit 22; and the 1st movable frame 3 and 2nd movable frame 4 are slid by rolling to reduce the clearance and when the roll bearing 23 is assembled with an eccentric pin 24, the clearance is made adjustable.</description><subject>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</subject><subject>OPTICS</subject><subject>PHYSICS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1994</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBCI8vf3VfBx9QtWcHIMCnL14WFgTUvMKU7lhdLcDIpuriHOHrqpBfnxqcUFicmpeakl8V4BHgZmhmbmZiamjsbEqAEAAicdrg</recordid><startdate>19940614</startdate><enddate>19940614</enddate><creator>WADA AKIFUMI</creator><creator>KANEKO KEIICHIRO</creator><creator>NIITSU KAZUMI</creator><scope>EVB</scope></search><sort><creationdate>19940614</creationdate><title>ZOOM LENS BARREL</title><author>WADA AKIFUMI ; KANEKO KEIICHIRO ; NIITSU KAZUMI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH06167645A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1994</creationdate><topic>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</topic><topic>OPTICS</topic><topic>PHYSICS</topic><toplevel>online_resources</toplevel><creatorcontrib>WADA AKIFUMI</creatorcontrib><creatorcontrib>KANEKO KEIICHIRO</creatorcontrib><creatorcontrib>NIITSU KAZUMI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>WADA AKIFUMI</au><au>KANEKO KEIICHIRO</au><au>NIITSU KAZUMI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>ZOOM LENS BARREL</title><date>1994-06-14</date><risdate>1994</risdate><abstract>PURPOSE:To obtain a zoom lens barrel for an infrared detecting device which is improved in the radial position precision of a lens of a movable part. CONSTITUTION:A roller bearing unit 22 is arranged at a 1st movable frame 3 and a 2nd movable frame 4, which engages the internal cylinder 12 of a fixed frame 7 through the roller bearing 23 of the roller bearing unit 22; and the 1st movable frame 3 and 2nd movable frame 4 are slid by rolling to reduce the clearance and when the roll bearing 23 is assembled with an eccentric pin 24, the clearance is made adjustable.</abstract><edition>5</edition><oa>free_for_read</oa></addata></record>
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subjects OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
title ZOOM LENS BARREL
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