Closed-loop lens driving device
The invention relates to a closed-loop lens driving device. The driving device comprises a pedestal, a lens seat for bearing a lens, a coil wound around the lens seat, magnets arranged in the periphery of the coil, a circuit board fixed on the pedestal and an induction element fixed on the circuit b...
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| creator | GUAN YUHAO LI YUSHENG LIN YIMIN |
| description | The invention relates to a closed-loop lens driving device. The driving device comprises a pedestal, a lens seat for bearing a lens, a coil wound around the lens seat, magnets arranged in the periphery of the coil, a circuit board fixed on the pedestal and an induction element fixed on the circuit board and positioned in parallel with the optical axis. According to the invention, the circuit board of the pedestal of the driving device is provided with the induction element, and the induction element can be used to detect the weakness of a magnetic field and the electrification amount of the coil generated after electrification of the detection coil and further to determine the position of the lens accurately; and compared with a traditional manner, the horizontal size of a camera is reduced, and the wring difficulty is reduced.
本发明涉及种闭环透镜驱动装置，其包括：底座、用于承载透镜的镜座、缠绕于镜座外围的线圈、设置在线圈外周侧的多个磁铁、固定在底座上的电路板和固定在电路板上并位于与所述光轴平行的方向上的感应元件。本发明在闭环透镜驱动装置的底座的电路板上设置感应元件，可通过该感应元件检测线圈通电后所产生的磁场强弱和线圈通电量来精确定位透镜的位置，相比传统的方式减小了摄像头的横向体积，并降低 |
| format | Patent |
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本发明涉及种闭环透镜驱动装置，其包括：底座、用于承载透镜的镜座、缠绕于镜座外围的线圈、设置在线圈外周侧的多个磁铁、固定在底座上的电路板和固定在电路板上并位于与所述光轴平行的方向上的感应元件。本发明在闭环透镜驱动装置的底座的电路板上设置感应元件，可通过该感应元件检测线圈通电后所产生的磁场强弱和线圈通电量来精确定位透镜的位置，相比传统的方式减小了摄像头的横向体积，并降低</description><language>chi ; eng</language><subject>ACCESSORIES THEREFOR ; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES ; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM ; CINEMATOGRAPHY ; ELECTROGRAPHY ; HOLOGRAPHY ; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS ; OPTICS ; PHOTOGRAPHY ; PHYSICS</subject><creationdate>2017</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=20170815&DB=EPODOC&CC=CN&NR=107045175A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20170815&DB=EPODOC&CC=CN&NR=107045175A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GUAN YUHAO</creatorcontrib><creatorcontrib>LI YUSHENG</creatorcontrib><creatorcontrib>LIN YIMIN</creatorcontrib><title>Closed-loop lens driving device</title><description>The invention relates to a closed-loop lens driving device. The driving device comprises a pedestal, a lens seat for bearing a lens, a coil wound around the lens seat, magnets arranged in the periphery of the coil, a circuit board fixed on the pedestal and an induction element fixed on the circuit board and positioned in parallel with the optical axis. According to the invention, the circuit board of the pedestal of the driving device is provided with the induction element, and the induction element can be used to detect the weakness of a magnetic field and the electrification amount of the coil generated after electrification of the detection coil and further to determine the position of the lens accurately; and compared with a traditional manner, the horizontal size of a camera is reduced, and the wring difficulty is reduced.
本发明涉及种闭环透镜驱动装置，其包括：底座、用于承载透镜的镜座、缠绕于镜座外围的线圈、设置在线圈外周侧的多个磁铁、固定在底座上的电路板和固定在电路板上并位于与所述光轴平行的方向上的感应元件。本发明在闭环透镜驱动装置的底座的电路板上设置感应元件，可通过该感应元件检测线圈通电后所产生的磁场强弱和线圈通电量来精确定位透镜的位置，相比传统的方式减小了摄像头的横向体积，并降低</description><subject>ACCESSORIES THEREFOR</subject><subject>APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES</subject><subject>APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM</subject><subject>CINEMATOGRAPHY</subject><subject>ELECTROGRAPHY</subject><subject>HOLOGRAPHY</subject><subject>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</subject><subject>OPTICS</subject><subject>PHOTOGRAPHY</subject><subject>PHYSICS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2017</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJB3zskvTk3RzcnPL1DISc0rVkgpyizLzEtXSEkty0xO5WFgTUvMKU7lhdLcDIpuriHOHrqpBfnxqcUFicmpeakl8c5-hgbmBiamhuamjsbEqAEAFockuA</recordid><startdate>20170815</startdate><enddate>20170815</enddate><creator>GUAN YUHAO</creator><creator>LI YUSHENG</creator><creator>LIN YIMIN</creator><scope>EVB</scope></search><sort><creationdate>20170815</creationdate><title>Closed-loop lens driving device</title><author>GUAN YUHAO ; LI YUSHENG ; LIN YIMIN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN107045175A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2017</creationdate><topic>ACCESSORIES THEREFOR</topic><topic>APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES</topic><topic>APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM</topic><topic>CINEMATOGRAPHY</topic><topic>ELECTROGRAPHY</topic><topic>HOLOGRAPHY</topic><topic>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</topic><topic>OPTICS</topic><topic>PHOTOGRAPHY</topic><topic>PHYSICS</topic><toplevel>online_resources</toplevel><creatorcontrib>GUAN YUHAO</creatorcontrib><creatorcontrib>LI YUSHENG</creatorcontrib><creatorcontrib>LIN YIMIN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>GUAN YUHAO</au><au>LI YUSHENG</au><au>LIN YIMIN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Closed-loop lens driving device</title><date>2017-08-15</date><risdate>2017</risdate><abstract>The invention relates to a closed-loop lens driving device. The driving device comprises a pedestal, a lens seat for bearing a lens, a coil wound around the lens seat, magnets arranged in the periphery of the coil, a circuit board fixed on the pedestal and an induction element fixed on the circuit board and positioned in parallel with the optical axis. According to the invention, the circuit board of the pedestal of the driving device is provided with the induction element, and the induction element can be used to detect the weakness of a magnetic field and the electrification amount of the coil generated after electrification of the detection coil and further to determine the position of the lens accurately; and compared with a traditional manner, the horizontal size of a camera is reduced, and the wring difficulty is reduced.
本发明涉及种闭环透镜驱动装置，其包括：底座、用于承载透镜的镜座、缠绕于镜座外围的线圈、设置在线圈外周侧的多个磁铁、固定在底座上的电路板和固定在电路板上并位于与所述光轴平行的方向上的感应元件。本发明在闭环透镜驱动装置的底座的电路板上设置感应元件，可通过该感应元件检测线圈通电后所产生的磁场强弱和线圈通电量来精确定位透镜的位置，相比传统的方式减小了摄像头的横向体积，并降低</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAPHY PHYSICS |
| title | Closed-loop lens driving device |
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