MOVABLE COIL TYPE ACTUATOR
PURPOSE:To smoothly move a moving element and to alleviate power necessary to move the element by operating propulsion forces of a plurality of movable coil type actuators substantially at a center of gravity of the element and a movable element made of a moving member. CONSTITUTION:A moving element...
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| creator | INOUE RYOKATSU SAKAMOTO SATOSHI ISHII HIROHISA |
| description | PURPOSE:To smoothly move a moving element and to alleviate power necessary to move the element by operating propulsion forces of a plurality of movable coil type actuators substantially at a center of gravity of the element and a movable element made of a moving member. CONSTITUTION:A moving element 12 is supported movably in a direction parallel to an optical axis of a lens 7 in a state that two positions of opposite side are respectively supported two guide shafts 17, 17' through its center. When driving currents flow to movable coils 31, 31', propulsion forces are applied to the coils 31, 31' in a direction responsive to a direction of the current in a direction along its axial direction, and hence the element 12 is moved forward or rearward together with the movable lens 7 by the propulsion force. Since the forces are operated from a center of gravity of a movable element formed of the element 12 and the lens 7 to two positions spaced at equal distances in opposite directions, a resultant force of the two propulsion forces is applied to a position of the center of gravity. |
| format | Patent |
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CONSTITUTION:A moving element 12 is supported movably in a direction parallel to an optical axis of a lens 7 in a state that two positions of opposite side are respectively supported two guide shafts 17, 17' through its center. When driving currents flow to movable coils 31, 31', propulsion forces are applied to the coils 31, 31' in a direction responsive to a direction of the current in a direction along its axial direction, and hence the element 12 is moved forward or rearward together with the movable lens 7 by the propulsion force. Since the forces are operated from a center of gravity of a movable element formed of the element 12 and the lens 7 to two positions spaced at equal distances in opposite directions, a resultant force of the two propulsion forces is applied to a position of the center of gravity.</description><edition>5</edition><language>eng</language><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; DYNAMO-ELECTRIC MACHINES ; ELECTRICITY ; GENERATION ; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS ; OPTICS ; PHYSICS</subject><creationdate>1993</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=19931210&DB=EPODOC&CC=JP&NR=H05328696A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76516</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19931210&DB=EPODOC&CC=JP&NR=H05328696A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>INOUE RYOKATSU</creatorcontrib><creatorcontrib>SAKAMOTO SATOSHI</creatorcontrib><creatorcontrib>ISHII HIROHISA</creatorcontrib><title>MOVABLE COIL TYPE ACTUATOR</title><description>PURPOSE:To smoothly move a moving element and to alleviate power necessary to move the element by operating propulsion forces of a plurality of movable coil type actuators substantially at a center of gravity of the element and a movable element made of a moving member. CONSTITUTION:A moving element 12 is supported movably in a direction parallel to an optical axis of a lens 7 in a state that two positions of opposite side are respectively supported two guide shafts 17, 17' through its center. When driving currents flow to movable coils 31, 31', propulsion forces are applied to the coils 31, 31' in a direction responsive to a direction of the current in a direction along its axial direction, and hence the element 12 is moved forward or rearward together with the movable lens 7 by the propulsion force. Since the forces are operated from a center of gravity of a movable element formed of the element 12 and the lens 7 to two positions spaced at equal distances in opposite directions, a resultant force of the two propulsion forces is applied to a position of the center of gravity.</description><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>DYNAMO-ELECTRIC MACHINES</subject><subject>ELECTRICITY</subject><subject>GENERATION</subject><subject>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</subject><subject>OPTICS</subject><subject>PHYSICS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1993</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJDy9Q9zdPJxVXD29_RRCIkMcFVwdA4JdQzxD-JhYE1LzClO5YXS3AyKbq4hzh66qQX58anFBYnJqXmpJfFeAR4GpsZGFmaWZo7GxKgBADVIIIM</recordid><startdate>19931210</startdate><enddate>19931210</enddate><creator>INOUE RYOKATSU</creator><creator>SAKAMOTO SATOSHI</creator><creator>ISHII HIROHISA</creator><scope>EVB</scope></search><sort><creationdate>19931210</creationdate><title>MOVABLE COIL TYPE ACTUATOR</title><author>INOUE RYOKATSU ; SAKAMOTO SATOSHI ; ISHII HIROHISA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH05328696A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1993</creationdate><topic>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</topic><topic>DYNAMO-ELECTRIC MACHINES</topic><topic>ELECTRICITY</topic><topic>GENERATION</topic><topic>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</topic><topic>OPTICS</topic><topic>PHYSICS</topic><toplevel>online_resources</toplevel><creatorcontrib>INOUE RYOKATSU</creatorcontrib><creatorcontrib>SAKAMOTO SATOSHI</creatorcontrib><creatorcontrib>ISHII HIROHISA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>INOUE RYOKATSU</au><au>SAKAMOTO SATOSHI</au><au>ISHII HIROHISA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>MOVABLE COIL TYPE ACTUATOR</title><date>1993-12-10</date><risdate>1993</risdate><abstract>PURPOSE:To smoothly move a moving element and to alleviate power necessary to move the element by operating propulsion forces of a plurality of movable coil type actuators substantially at a center of gravity of the element and a movable element made of a moving member. CONSTITUTION:A moving element 12 is supported movably in a direction parallel to an optical axis of a lens 7 in a state that two positions of opposite side are respectively supported two guide shafts 17, 17' through its center. When driving currents flow to movable coils 31, 31', propulsion forces are applied to the coils 31, 31' in a direction responsive to a direction of the current in a direction along its axial direction, and hence the element 12 is moved forward or rearward together with the movable lens 7 by the propulsion force. Since the forces are operated from a center of gravity of a movable element formed of the element 12 and the lens 7 to two positions spaced at equal distances in opposite directions, a resultant force of the two propulsion forces is applied to a position of the center of gravity.</abstract><edition>5</edition><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERATION OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS |
| title | MOVABLE COIL TYPE ACTUATOR |
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