TWI318401B - - Google Patents

Download PDF

Info

Publication number
TWI318401B
TWI318401B TW095131231A TW95131231A TWI318401B TW I318401 B TWI318401 B TW I318401B TW 095131231 A TW095131231 A TW 095131231A TW 95131231 A TW95131231 A TW 95131231A TW I318401 B TWI318401 B TW I318401B
Authority
TW
Taiwan
Prior art keywords
coil
lens
drive
focus
lens holder
Prior art date
Application number
TW095131231A
Other languages
Chinese (zh)
Other versions
TW200713250A (en
Original Assignee
Sumida Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumida Corp filed Critical Sumida Corp
Publication of TW200713250A publication Critical patent/TW200713250A/en
Application granted granted Critical
Publication of TWI318401B publication Critical patent/TWI318401B/zh

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/093—Electromechanical actuators for lens positioning for focusing and tracking
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/0932—Details of sprung supports
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/0933—Details of stationary parts
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/0935—Details of the moving parts
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/095—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble
    • G11B7/0956—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372—Lenses
    • G11B7/1374—Objective lenses

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)

Description

1318401 九、發明說明： 【發明所屬之技術領域】 再1318401 IX. Description of the invention: [Technical field to which the invention belongs]

本發明涉及的是裝載於進行光存儲媒介物的記 生的光頭裝置上的物鏡驅動裝置。 D 【先前技術】 在 cD(C0mpact Disk)及 _(Digita| v的籍The present invention relates to an objective lens driving device mounted on an optical head device that performs recording of an optical storage medium. D [Prior Art] in cD (C0mpact Disk) and _ (Digita| v

Disk)等進行光存儲媒介物的記錄、再生等的光頭裝置上Disk, etc., on an optical head device that performs recording, reproduction, and the like of an optical storage medium

有物鏡、支持物鏡的透鏡架、以及使透鏡架向跟 ^向和聚焦方向驅動的驅動機構的物鏡驅動穿詈. ^種物鏡驅動裝置’已知的有，在偏離透鏡架；心部的I 隸置）上配置物鏡的、所謂透鏡偏移型的物鏡驅 動裝置。（例如，參照專利文獻1 ) ::利文獻1所記載的物鏡驅動裝置中，透鏡架是由 形成了在聚焦方向上貫穿的貫穿孔的方形主體部、 物鏡的透鏡支持部構成。透鏡支持部是，財形主體部的 一個側面向與聚焦方向和跟縱方向垂直相交的方向 形成的。另外，從雙隹太Λ@ ± 比較薄。 從聚…方向觀察打’主體部的厚度形成得 另外’在該物鏡驅動裝置中，在形成於主體部的貫穿 =内配置有’用於使透鏡架向聚焦方向驅動的聚焦驅動線 ’用於使透鏡架向跟射向驅動的跟絲動線圈，以及 固定了-對用於使透鏡架向跟縱方向以及聚焦方向驅動的 =磁鐵的—對辆。更具體地說，在使捲繞成長方形形狀 焦驅動線圈的一邊’與形成了透鏡支持部的主體部— 1318401 圈。'目對側面内周側相接的狀態下，配置有聚焦驅動線 柏料：外在與主體部内周侧相接的聚焦驅動線圈-邊的 、外侧上’固定有兩個跟蹤驅動線圈。 〔專利文獻1〕特開2003— 168228號公報 【發明内容】 1¾明所要解決的课題 近年&料光存㈣介物，以比現有DVD等更短波 :激光進行記錄、再生的藍盤等的新一代dvd在市場上 物：S'。該：一 K DVD等所代表的新-代光存儲媒介 間的;;隔1仃向密度記錄’而且記錄坑點PU)之 比現有技術的光存儲媒介物的狹窄。因此，光頭 射。精度對新-代的光存儲媒介物進行激光照 化的要灰近年來’隨著光存儲媒介物的記錄、再生高速 、：亡，光存儲媒介物的旋轉速度也正向高速化發展。 穿，而s古、 由於即使在記錄坑點之間的間隔狹 而且向速旋轉的光存儲姐入从^ L A 動的情7 '"勿上產生了偏心和表面振An objective lens, a lens holder supporting the objective lens, and an objective lens driving the driving mechanism for driving the lens holder to the aligning direction and the focusing direction. The objective lens driving device is known to be offset from the lens holder; A so-called lens shift type objective lens driving device in which an objective lens is disposed. In the objective lens driving device described in the document 1, the lens holder is constituted by a square main body portion in which a through hole penetrating in the focus direction is formed, and a lens support portion of the objective lens. The lens supporting portion is formed by a side surface of the main body portion of the financial shape intersecting the direction of the focus and the direction perpendicular to the longitudinal direction. In addition, from the double 隹 too Λ @ ± thinner. The thickness of the main body portion is formed from the direction of the poly..., and in the objective lens driving device, a focus driving line for driving the lens holder in the focusing direction is disposed in the penetration direction formed in the main body portion for The traverse coil that causes the lens holder to be directed toward the drive, and the pair of magnets that are used to drive the lens holder in the longitudinal direction and the focus direction. More specifically, the side of the rectangular-shaped focal drive coil is wound and the main body portion where the lens support portion is formed is 1318401. In a state in which the inner peripheral side of the side faces are in contact with each other, a focus drive line is disposed. The outer cover is provided with two tracking drive coils on the outer side of the focus drive coil that is in contact with the inner peripheral side of the main body portion. [Patent Document 1] JP-A-2003-168228 [Summary of the Invention] The problem to be solved in the recent years is to use a shorter-wave than a conventional DVD or the like: a blue disk such as a laser for recording and reproduction. The new generation of DVDs on the market: S'. The difference between the new-generation optical storage medium represented by a K DVD and the like; the density recording of the density and the recording of the pit PU is smaller than that of the prior art optical storage medium. Therefore, the head is shot. Accuracy has been ashing for new-generation optical storage media in recent years. With the recording and reproduction of optical storage media, the speed of rotation of optical storage media is also increasing. Wear, and s ancient, because even if the interval between the recorded pits is narrow and the speed of rotation of the light storage sister enters from the ^ L A move 7 '" do not produce eccentricity and surface vibration

Hr 高精度進行光存儲媒介物的記錄、再生， 物鏡驅動敦置。也就是ΓΓ 和表面振動的 速旋棘、… 市場上需要具有，即使在以高 偏、Ή订°己錄和再生時的新一代光存储媒介物上產生了 表面振動的情況下’也能夠跟縱其偏心和表面振動 而Ν頻驅動的透鏡架的物鏡驅動裝置。 p ^ I* π在專利文獻1所記載的物鏡㈣裝置中，在形 成於主體Μ貫穿孔内，配置有聚焦驅動線圈、跟縱驅動 7 1318401 線圏以及固$ 穿孔。另外—對驅動磁鐵的一對輕’形成比較大的貫 心的聚m在該物鏡驅㈣置中’作為透鏡架的驅動中 的貫穿孔内的、從“… 在形成於主體部 也就是說十“支持物鏡的透鏡支持部偏離的位置上。 主體部的厚^勿/驅動裝置中’雖然從聚焦方向觀察時， 透鏡架=:=薄、從而主體部的剛性低，但是 鏡驅動裝置中間的距離變長。因此，在該物 的偏心和表面二Π跟蹤新一代的光存儲媒介物上産生 中心與物鏡之^鏡“頻驅動時，在透鏡架的驅動 另外，_曰透鏡架上容易産生扭曲和歪斜等變形。 形量變大—/鏡架上産生變形，則在透鏡支持部上的變 媒介it产:很難使物鏡以較好的靈敏度跟縱光存儲 所”的：产和表面振動。其結果是，在專利文獻1 難己=鏡驅動裝置中’在透鏡架高頻驅動的情況下， 很難^精度進行光存儲媒介物的記錄、再生。 架高It動::明的目的在於提供一種具有，即使在透鏡 的記錄 月’兄下’也能夠以高精度進行光存儲媒介物 ^ 再生的構成的物鏡驅動裝置。 解決課題的手段 為了解決上述課題，本發明的物 鏡、支持物鏡的透鏡芊、以及接读倍/ 置’設有物 及使相架至少向跟縱方向以 至Γ驅動機構，其中，驅動機構具有··用於 使透=至少向跟财向以及聚焦方㈣動的㈣ 用於使透鏡架向聚焦方向驅動的聚焦驅動線圏， 8 1318401 使透鏡架向跟縱方而 形成了在聚隹方向上跟縱驅動線圈；透鏡架具有： 線圏捲繞料主體貫穿减捲繞聚焦驅動線圈的 部;在透鏡支持部_方;二上支t:鏡的透鏡Μ 交的方向上相對。在與聚焦方向和跟縱方向垂直相 在本發明的物鏡驅動裝 向兩側上設有驅動磁撒。“的跟縱方 ’载因此，在本發明的物鏡驅動裝置 中，在透鏡架上形ώ f空 成貝穿孔時，不需要考慮設置於透鏡支 捋部兩側上的驅動磁纖砧 ㈣鐵的大小。因此’㈣縮小形成於透 •兄架上的貫穿孔，從而縮小透鏡架自身的大小…士果是， 能夠縮短透鏡架的驅動中心與物鏡之間的距離。、因。此，即 使在為了跟蹤光存儲媒介物上産生的偏心和表面振動而透 鏡架高頻驅動的情況下，也難以在透鏡架上産生扭曲和歪 斜專羞I丨外’即使在透鏡架的驅動中心、與物鏡之間， 透鏡架上産生了扭曲和歪斜等變形的情況下，在透鏡支持 部上的變形量變小，也能夠使物鏡以較好的靈敏度跟蹤光 存儲媒介物上産生的偏心和表面振動。 另外’在本發明的物鏡驅動裝置中，跟蹤驅動線圈與 驅動磁鐵，在與聚焦方向和跟蹤方向垂直相交的方向上相 對。在這里，在跟蹤驅動線圈與驅動磁鐵在跟蹤方向或聚 焦方向上相對的情況下，與設置於透鏡支持部的跟蹤方向 兩側上的驅動磁鐵相對的跟蹤驅動線圈，配置在透鏡支持 !318401 部的跟縱方向兩側上。因此，在所謂的透鏡偏移型的物鏡 驅動裝置中，跟縱驅動線圈是配置在從透鏡架的聚焦方向 :驅動中心偏離的位置上’在由於該跟蹤驅動線圈重量的 衫響而透鏡架高頻驅動時，纟易在透鏡架上産生扭曲和歪 斜等的變％。相對於此，在本發明中，由於跟蹤驅動線圈 ，驅動磁鐵，在與聚焦方向和跟縱方向$直相交的方向上 是相對的，因&，能夠將與設置在透鏡支持部的跟縱方向 2側上的驅動磁鐵相對的跟蹤驅動線圈設置在透鏡架的主 組部側上。因&，在本發明的物鏡驅動裝置t，即使在透 鏡架高頻驅動的情況下，也能夠抑制因跟蹤驅動線圈重量 的影響而産生的透鏡架的變形。其結果是，能夠抑制在透 鏡支持部上的變形量，能夠使物鏡以較好的靈敏度跟蹤光 存儲媒介物上產生的偏心和表面振動。 在本發明中，以貫穿孔是貫穿線圈捲繞部而形成、聚 :驅動線圈是沿著線圈捲繞部的外周捲繞為佳。如果採用 、言7勺構《貝Ij即使在從聚焦方向觀察時線圈捲繞部的厚 度形成得比較薄、主體部的·降低的情況下，也能夠通 過捲繞後經過自熱粘接處理的聚焦驅動線圈的剛性來抑制 透鏡架的扭曲和歪斜等變形。也就是說，能夠通過沿著線 圈捲繞部外周捲繞的聚焦驅動線圈的剛性，確保透鏡架的 剛性。因A ’即使在透鏡架高頻驅動的情況下，也能夠進 2抑制透鏡架的變形，能夠使物鏡以更好的靈敏度跟縱 光予儲媒；1物上産生的偏心和表面振動。 本發月中，以在透鏡架上形成兩個線圈捲繞部，利 1318401 用捲繞在-方的線圈捲繞部上的聚焦驅動線圈上産生的驅 動力，與捲繞在另一方的線圈捲繞部上的聚焦驅動線圈上 產生的驅動力之差，使透鏡架在傾斜方向上驅動為佳。如 果採用這種構成’則不需要另行設置傾斜驅動用的驅動線 圈與驅動磁鐵，透鏡架也能夠進行傾斜驅動。另外，在聚 焦驅動線圈沿著線圈捲繞部外周捲繞的情況下，也能夠通 過聚焦驅動線圈的剛性，確保透鏡架的剛性。 如以上所說明’在本發明涉及的物鏡驅動裝置中，即 使在㈣架高頻驅動的情況下’也能夠以高精度進行光存 儲媒介物的記錄、再生。 【實施方式】 以下，根據附圖說明本發明的最佳實施形態。 〔實施形態一〕 & (物鏡驅動裝置的構成） 第一圖是表示本發明實施形態一 “嫩圖。第二圖是表示第一圖所示：物鏡驅動裝置 側面圖。第三圖是表示第一圖的剖動裝置1的 圖是表示第-圖所示的透鏡架3的示的剖面圖。第四 視圖，⑻是側面圖。 -圖’其中（A)是俯 本實施形態的物鏡驅動裝置彳是， 驅動裝置。特別是，本實施形態的物 使在以比現有技術更短波長的激光進行: 或新-代DVD等光存儲媒介物（省略圖^了進行CD、DVD 而使用於具有規定光學系統的光頭1 ^的記錄、再生’ 缸姑堪„枝e丨丨且·丄& . 夏〔省略圖示)上的 暖驅動裝置彳是 錄、再生的 11 1318401 •錄坑點(rec_n9 Pi”之間間隔狹f的 現有技術更快的速产* 褚媒"物，以比 驅動的、裝载於下’也能夠進行高頻 生的光頭裝置物订光存儲媒介物的記錄、再 貝装罝上的物鏡驅動裝置。如 鏡驅動裝置*1县邮啡A 圓寺所不，該物 疋所明的鋼絲懸吊型的物鏡驅動妒 支持物鏡2的透鏡架3，以四广 3、使其能夠向聚焦方向（以箭頭標諸F。表、=鏡架 跟縱方向（以箭頭標…示的 ：：的方向）及 • 5,以及使透鏡架3向聚焦方“了）移動的固定側部件 6。 ’、’、 °馭蹤方向驅動的驅動機構 而且’在光頭裝置上進行記錄、再生 的半徑方向與跟蹤方向大體一致 =儲媒介物 蹤方h千古4 焦方向和跟Hr High-precision recording and reproduction of optical storage media, and objective lens driving. That is, the 旋 and the surface oscillating speed spine, ... the market needs to have, even in the case of surface vibration caused by a new generation of optical storage media when recording and reproducing with high bias, ° ° ° The objective lens driving device of the lens frame driven by the eccentricity and surface vibration. In the objective lens (4) device described in Patent Document 1, p ^ I* π is formed in the main body through hole, and is provided with a focus drive coil, a longitudinal drive 7 1318401 coil, and a solid perforation. In addition, a pair of light-forming pairs of the driving magnets form a relatively large centering polym in the objective lens drive (four) centered in the through hole in the driving of the lens holder, from "... in the main body portion Ten "supports the position where the lens support of the objective lens deviates. In the thickness of the main body portion, the lens holder =: = is thin, and the rigidity of the main body portion is low, but the distance between the mirror driving devices becomes long. Therefore, when the eccentricity of the object and the surface annihilation of the new generation of optical storage medium are generated, the center and the objective lens are “frequency-driven, and the lens holder is driven, and the _ 曰 lens holder is prone to distortion and skew. Deformation. The shape becomes larger—or the deformation on the frame, the variable medium on the lens support: it is difficult to make the objective lens with good sensitivity and longitudinal light storage: production and surface vibration. As a result, in Patent Document 1, it is difficult to accurately record the optical storage medium in the case where the lens holder is driven at a high frequency. The purpose of the high-speed movement is to provide an objective lens driving device having a configuration capable of reproducing the optical storage medium with high precision even under the recording month of the lens. Means for Solving the Problems In order to solve the above problems, the objective lens of the present invention, the lens 支持 of the supporting objective lens, and the reading/setting device and the phase frame are at least oriented in the longitudinal direction, wherein the driving mechanism has · For the purpose of making the transmission at least to the fiscal direction and the focus side (four), the focus drive line for driving the lens holder in the focus direction, 8 1318401, the lens holder is formed in the convergence direction. The longitudinal drive coil; the lens holder has: a wire winding body that penetrates the portion of the reduced-winding focus drive coil; and a lens support portion _ square; two upper branches t: the mirror lens intersects in a direction intersecting. In the direction perpendicular to the focusing direction and the longitudinal direction, driving magnetic scattering is provided on both sides of the objective lens driving direction of the present invention. Therefore, in the objective lens driving device of the present invention, when the shape of the yoke is formed on the lens holder, it is not necessary to consider the driving magnetic anvil (4) iron provided on both sides of the lens support portion. Therefore, '(4) reduces the size of the through hole formed in the transparent frame, thereby reducing the size of the lens holder itself. The result is that the distance between the driving center of the lens holder and the objective lens can be shortened. In the case of tracking the eccentricity and surface vibration generated on the optical storage medium and the lens holder is driven at a high frequency, it is also difficult to produce distortion and skew on the lens holder, even if it is in the driving center of the lens holder and the objective lens. In the case where deformation such as distortion and skew occurs on the lens holder, the amount of deformation on the lens supporting portion becomes small, and the objective lens can also track the eccentricity and surface vibration generated on the optical storage medium with good sensitivity. In the objective lens driving device of the present invention, the tracking drive coil and the drive magnet are opposed in a direction perpendicular to the focus direction and the tracking direction. Here, the tracking drive When the coil and the driving magnet are opposed to each other in the tracking direction or the focusing direction, the tracking drive coils opposed to the driving magnets provided on both sides of the lens supporting portion in the tracking direction are disposed on both sides of the lens supporting !318401 portion in the longitudinal direction. Therefore, in the so-called lens shift type objective lens driving device, the vertical drive coil is disposed at a position deviated from the focus direction of the lens holder: the drive center, and the lens is struck by the weight of the drive coil due to the tracking drive. When the frame is driven at a high frequency, it is easy to cause a distortion of distortion, skew, etc. on the lens holder. In contrast, in the present invention, since the drive coil is tracked, the magnet is driven to intersect with the focus direction and the longitudinal direction. The direction is opposite, and the tracking drive coil that is opposite to the drive magnet provided on the side of the lens support portion in the longitudinal direction 2 can be disposed on the main group side of the lens holder because of & According to the objective lens driving device t of the invention, even in the case where the lens holder is driven at a high frequency, deformation of the lens holder due to the influence of the weight of the tracking drive coil can be suppressed. As a result, the amount of deformation on the lens supporting portion can be suppressed, and the objective lens can be used to track the eccentricity and surface vibration generated on the optical storage medium with good sensitivity. In the present invention, the through hole is wound through the coil. Forming and gathering: the drive coil is preferably wound around the outer circumference of the coil winding portion. If the method is adopted, the thickness of the coil winding portion is formed thinner even when viewed from the focus direction. When the main body portion is lowered, it is also possible to suppress deformation such as distortion and skew of the lens holder by the rigidity of the focus drive coil subjected to the self-heat bonding treatment after winding. That is, it is possible to pass along the coil winding portion. The rigidity of the focus-driving coil wound around the outer circumference ensures the rigidity of the lens holder. Because A' can suppress the deformation of the lens holder even when the lens holder is driven at a high frequency, the objective lens can be improved with better sensitivity. Light to the storage medium; 1 eccentricity and surface vibration generated on the object. In the present month, two coil winding portions are formed on the lens holder, and the driving force generated by the focusing drive coil wound on the coil winding portion of the 1384041 is wound with the coil wound on the other coil. The difference in driving force generated on the focus drive coil on the winding portion makes it preferable to drive the lens holder in the oblique direction. According to this configuration, it is not necessary to separately provide a drive coil for driving the tilt and a drive magnet, and the lens holder can be tilt-driven. Further, in the case where the focus drive coil is wound around the outer circumference of the coil winding portion, the rigidity of the focus drive coil can be ensured to ensure the rigidity of the lens holder. As described above, in the objective lens driving device according to the present invention, recording and reproduction of the optical storage medium can be performed with high precision even in the case of (four) frame high frequency driving. [Embodiment] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. [Embodiment 1] & (Configuration of objective lens driving device) Fig. 1 is a front view showing a first embodiment of the present invention. The second drawing shows a side view of the objective lens driving device. The third figure shows The cross-sectional view of the lens holder 3 shown in the first figure is a cross-sectional view showing the lens holder 3 shown in the first figure. The fourth view, (8) is a side view. - (A) is an objective lens of the present embodiment. The driving device is a driving device. In particular, the object of the present embodiment is made of a laser having a wavelength shorter than that of the prior art: or an optical storage medium such as a new-generation DVD (the use of a CD or a DVD is omitted). For the recording and reproduction of the optical head 1 ^ with the specified optical system, the warm drive on the summer [omitted] is recorded and regenerated 11 1318401 • Recording pit The point (rec_n9 Pi) is a faster-speed production of the prior art with a narrower gap between the "rec_n9 Pi", and the recording of the light-storing storage medium of the optical head device capable of high-frequency generation. The objective lens driving device on the top of the shell, such as the mirror drive Set the *1 County Mail and A Temple, the object of the wire hanging type is driven by the objective lens to support the lens holder 3 of the objective lens 2, so that it can be directed to the focus direction (marked by arrows) F. Table, = frame with the longitudinal direction (in the direction indicated by the arrow::) and • 5, and the fixed side member 6 that moves the lens holder 3 to the focus side. ', ', °驭The drive mechanism driven by the trace direction and the radial direction of the recording and regeneration on the optical head device are substantially consistent with the tracking direction = the storage medium traces the angle of the eye and the

Ta表；的方二；的：向（第―圖的左右方向、以箭頭標誌 大體：致: 储媒介物的切線方向（切向方向） 的方白 此’以下將與聚焦方向和跟蹤方向垂直相交 J万向C載為切向方向。 持透= 具有：在前端側（第一圖的右端側）支 兄木3的四根鋼絲4’在其基端側（第—圊的左端側） 支持鋼絲4的塊狀的支架支持部件7，以及 的同時，構成驅動機構6的一邛分的妒 肢匡木 支牟7 〇P刀的軛8。如第二圖所示， 木支持部件7在圖示左端側通過 軛8的上表面上。 寻U疋手奴固疋在 如第-圖及第二圖所示，四根鋼絲4,在聚焦方向上重 設置，並且在透鏡架3的跟縱方向兩側的每一側上各 )2 1318401 設置兩根。該銅絲4澴且女 ^ ._ '、有’作為對後述的聚焦驅動線圈 15以及跟縱驅動線圈16餹雷 ， 饋電的饋電鋼絲的功能。因此，鋼 絲4的前端側，通過焊 邱接破固定於在透鏡架3的跟蹤方向 兩侧上固定的中繼電路. 上。更具體地說，在兩塊中繼 電路板1 0、1 0上分別A 士 + ^ 刀別固疋有兩根鋼絲4的前端側。而且， 在中繼電路板1 〇、1 〇卜、-_ 上連接有聚焦驅動線圈1 5以及跟蹤 驅動線圈1 6。另—古； . ’鋼絲4的基端側，通過焊接固定 在安裝於支架支持部件7 干’的奇面（第一圖的左端面）的印 刷電路板1 1上。 1 輛8疋由具有磁性 θ 1 π生屬邛件形成。本貫施形態的軛8 :〗銹鋼板等的薄鋼板形成大致長方形形狀。該軛8， :、底：部配置在形成於透鏡架3上的後述貫穿孔3a 、㈣固定後述第—驅動磁鐵13的第-磁鐵支持部8b， 以及配置在構成透鏡举λ ^ y , 3的後述透鏡支持部3c的跟蹤方向 ^ 疋後述兩個第二驅動磁鐵14、14的兩 個第二磁鐵支持部8c、8。構成的。 第磁鐵支持部8b以及第二磁鐵支持部^ 底面部8 a彎曲踔叙& Λ，二、仏 )成的。更具體地說，第一磁鐵支持 部8b疋，底面部 ,y 的大致中心部從第一圖以及第二圖的 左側朝右側彎曲蹺钯& + θ 而形成的。另外，第二磁鐵支持部8c、 、^底面。卩8a的右端側上，跟蹤方向兩端側從第—圖 以及第二圖的右側朝左側彎曲蹺起而形成的。 如第一圖所不’從省略圖示的光頭裝置的激光光源射 “的、且在省略圖示的光存儲媒介物被反射的激光通過 13 1318401 的通過孔心是貫穿底面部8a而形成於底面部以上的。 更具體地說，通過孔8d在底面部8a的右端側上，形成於 跟縱方向的大致中心位置上，以在聚焦方向上與物鏡2的 位置相對應。 透鏡架3,由樹脂部件形成，同時，如第四圖等所示， 疋由形成了在聚焦方向上貫穿的貫穿孔3a的主體部3b、與 以上端面支持物鏡2的透鏡支持部3c構成的。 如第四圖等所示’主體部3b是，形成於第四圖⑻ 中下側部分的大致方形線圈捲繞部3f，與形成於第四圖⑻ 中上侧部分的扁平的大致方形線圈相接部^成為—體而構 成的。線圈捲繞部3f形成於線圈相接部化的大致中心位置 上。另外，如第四圖等所示，從聚焦方向觀察時的線圈捲 繞部3的外形，形成為小於線圈相接部3g的外形。在線圈 捲繞β 3f上’聚焦驅動線圈，5沿著線圈捲繞部μ的外周 而捲繞’線圈相接部3g的下側與聚焦驅動線圈15的一端 (更具體地說’ S第三圖的上端）相接。 士第四圖等所不’貫穿孔3a形成於主體部3b的大致 中心部上，略呈長方形形狀。也就是說，貫穿 線圈捲繞部以而形成的。更具體地說，為了謀求透鏡架3 的小型化、輕篁化，貫穿孔33形成為，從聚焦方向觀察時 線圈捲繞部的厚度比較薄。如第—圖等所示，該貫穿孔 33内配置有’第—磁鐵支持部8b及後述第-驅動磁鐵13。 另外’線圈相接部3g的跟蹤方向的寬度，寬於軛8的跟蹤 方向的寬度。 14 1318401 '•支持°卩3 c，是從方形主體部3 b的一個側面向切向 方向（與聚焦方向和跟蹤方向垂直相交的方向）突出而形 成的更具體地說’如第一圖等所示，透鏡支持部3c，是 、、在圈相接3 g右側面的跟蹤方向中心部向右側突出（連 接於線圈相接部3g)而形成的。另外，透鏡架3被固定侧 部件5支持為’在切向方向上透鏡支持部3c的右端與軛8 的第一磁鐵支持部8 c、8 c的右側面大體一致。The second table of the Ta table; the direction of the direction (the left and right direction of the figure, with the arrow mark generally: to: the tangential direction of the storage medium (tangential direction), this will be perpendicular to the focus direction and the tracking direction Intersecting J-direction C load is tangential direction. Hold-through = With: On the front end side (the right end side of the first figure), the four wires 4' of the brothers 3 are on the base end side (the left end side of the first 圊) The block-shaped bracket supporting member 7 of the support wire 4, and at the same time, constitutes a yoke of the armored rafter 7 〇P blade of the drive mechanism 6. As shown in the second figure, the wooden support member 7 On the left end side of the figure, it passes through the upper surface of the yoke 8. Looking at the U-hands, as shown in the first and second figures, the four wires 4 are reset in the focus direction, and are in the lens holder 3. Set two on each side of each side of the longitudinal direction 2 1318401. The copper wire 4 is a female wire and has a function as a feed wire for feeding the focus drive coil 15 and the vertical drive coil 16 which are described later. Therefore, the front end side of the wire 4 is fixed to the relay circuit fixed on both sides in the tracking direction of the lens holder 3 by welding. More specifically, the front end sides of the two wires 4 are fixed on the two relay boards 10 and 10, respectively. Further, a focus drive coil 15 and a tracking drive coil 16 are connected to the relay board 1 〇, 1 、b, -_. Further, the base end side of the steel wire 4 is fixed to the printed circuit board 1 1 attached to the odd surface (the left end surface of the first drawing) of the bracket support member 7 by the welding. One vehicle is formed of a magnetic θ 1 π element. The thin steel plate of the yoke 8 or the rust steel plate of the present embodiment has a substantially rectangular shape. The yoke 8 and the bottom portion are disposed in a through hole 3a to be described later formed on the lens holder 3, (4) a first magnet support portion 8b to which the first drive magnet 13 is fixed, and a lens λ y, 3 In the tracking direction of the lens supporting portion 3c, which will be described later, the two second magnet supporting portions 8c and 8 of the two second driving magnets 14 and 14 will be described later. Constituted. The second magnet supporting portion 8b and the second magnet supporting portion ^ bottom portion 8a are curved and formed. More specifically, the first magnet supporting portion 8b is formed by bending the palladium & + θ from the left side of the first figure and the second side toward the right side of the bottom portion. Further, the second magnet supporting portions 8c and φ are provided on the bottom surface. On the right end side of the cymbal 8a, the both end sides in the tracking direction are formed by bending up from the right side of the first figure and the second figure to the left side. As shown in the first figure, the laser light emitted from the laser light source of the optical head device (not shown) is formed by the laser beam reflected by the optical storage medium (not shown) passing through the hole core 13 1318401 through the bottom surface portion 8a. More specifically, the hole 8d is formed at a substantially central position in the longitudinal direction on the right end side of the bottom surface portion 8a so as to correspond to the position of the objective lens 2 in the focus direction. It is formed of a resin member, and as shown in Fig. 4 and the like, the crucible is constituted by the main body portion 3b forming the through hole 3a penetrating in the focus direction, and the lens supporting portion 3c of the upper end surface supporting objective lens 2. The main body portion 3b shown in Fig. 4 is a substantially square coil winding portion 3f formed in a lower portion of the fourth figure (8), and a flat substantially square coil portion formed in the upper portion of the fourth figure (8). The coil winding portion 3f is formed at a substantially central position at which the coil is partially connected. Further, as shown in the fourth diagram or the like, the outer shape of the coil winding portion 3 when viewed from the focus direction is formed. Less than the coil junction The outer shape of 3g. The focus drive coil 5 is wound on the coil winding β 3f, and the lower side of the coil contact portion 3g and the one end of the focus drive coil 15 are wound around the outer circumference of the coil winding portion μ (more specifically The upper end of the third drawing is connected to the fourth hole or the like. The through hole 3a is formed in a substantially central portion of the main body portion 3b, and has a substantially rectangular shape. More specifically, in order to reduce the size and weight of the lens holder 3, the through hole 33 is formed to have a relatively small thickness of the coil winding portion when viewed from the focus direction. As shown in Fig. The first magnet support portion 8b and the first drive magnet 13 to be described later are disposed in the hole 33. The width of the coil contact portion 3g in the tracking direction is wider than the width of the yoke 8 in the tracking direction. 14 1318401 '•Support°卩3 c is formed more specifically from one side surface of the square main body portion 3 b toward the tangential direction (a direction perpendicularly intersecting the focusing direction and the tracking direction). As shown in the first figure or the like, the lens supporting portion 3c , yes, tracking on the right side of the circle connected to 3 g The central portion is protruded to the right side (connected to the coil contact portion 3g). Further, the lens holder 3 is supported by the fixed side member 5 as 'the right end of the lens support portion 3c in the tangential direction and the first magnet of the yoke 8 The right side faces of the support portions 8c, 8c are substantially identical.

透鏡支持部3c的跟蹤方向的寬度，比主體部3b的線 圈才接P 3g的跟縱方向寬度狹窄。例如，透鏡支持部& 的跟蹤方向的寬度，是線圈相接部3g的跟蹤方向寬度的大 勺一刀之左右。位於透鏡支持部3c兩側上的線圈相接部 g的右侧面，成為安裝後述兩個跟縱驅動線圈16、16的 安裝部3d、3d (參照第四圖）。 另外如第二圖所示，由省略圖示的光頭裝置的激光 光源射出#、且在省略圖示的光存儲媒介物上被反射的激 光，過的通過孔3e’是貫穿透鏡支持部3c而形成於透鏡支 夺 的更具體地說，通過孔3e形成於被透鏡支持 部3c上端面支持的物鏡2的下侧。 。驅動機構6除上述的辆8之外，還具有：用於使透鏡 架3向聚焦方向以及跟蹤方向驅動的第—驅動磁鐵u以及 兩個第二驅動磁鐵14、14，用於使透鏡架3向聚焦方向驅 動的聚焦驅動線圈15，以及用於使透鏡架3向跟蹤方向驅 動的兩個跟蹤驅動線圈]6、《! 6。 固定在 第一驅動磁鐵13 ’形成為扁平的長方體形狀 15 1318401 第—圖等中的第一磁鐵支掊 鐵13的跟縱方向的寬、° 、側面上。第一驅動磁 的寬度大致相同。與第—磁鐵支持部北的跟縱方向 第一驅動磁鐵14、14，你屮法e 形成為長方體形狀，分別固定 在弟一圖#中的兩個第二 ,, 现叉符。卩8c、8c各自的左側面 上。也就是說，第二驅動磁纖] ^ , 動磁鐵14、14設置在透鏡支持部3c 的跟蹤方向兩側上。另外，笼_ 第—驅動磁鐵14、1 4的跟蹤方 向的寬度，與第二磁鐵支接邱 符。卩8c、8c的跟蹤方向的寬度大 致相同。也就是說’如第— ^ 圓尸汁不，第二驅動磁鐵14、14， 在跟縱方向上是以不超出透鐘 ^ w迭鲵木3的外侧而配置的。換句 活說’第二驅動磁鐵14、14，在跟蹤方向上配置在與主體 部3b的跟蹤方向垂直相交的兩個側面（第一圖中的上側面 與下側面）之間。因此’能夠在跟縱方向上謀求物鏡驅動 裝置1的小型化。 第一驅動磁鐵13以及第二驅動磁鐵彳4、彳4,均在切 鲁向方向上兩極被磁化。更具體地說，例如，第一驅動磁鐵 及第二驅動磁鐵14、14’在第—圖等中均被磁化成其 右端面為s極，左端面為N極。 如第一圖等所不，聚焦驅動線圈彳5，沿著線圈捲繞部 3f的外周及線圏相接部3g的下表面捲繞成大致長方形形 狀。更具體地說，在聚焦驅動線圈彳5的内周側全周與線圈 捲，堯部3f的外周接觸的狀態下，並且，在聚焦驅動線圈j 5 的上表面與線圈相接部3g的下表面接觸的狀態下，通過粘 …等方法使聚焦驅動線圈1 5固定在線圈捲繞部3f的外周側 16 1318401 上。構成該聚焦驅動線圈1 5的導線外周側涛望―1 復盖著熱點接 覆膜，聚焦驅動線圈1 5在以空芯捲繞後經過自熱粘接處理 的狀態下，嵌入固定在線圈捲繞部3f上。The width of the lens support portion 3c in the tracking direction is narrower than the width of the main body portion 3b in the longitudinal direction of P 3g. For example, the width of the lens support portion & the tracking direction is about a large square of the width of the coil contact portion 3g in the tracking direction. The right side surface of the coil contact portion g located on both sides of the lens supporting portion 3c is a mounting portion 3d, 3d to which the two vertical driving coils 16 and 16 described later are attached (see the fourth drawing). Further, as shown in the second figure, the laser light source of the optical head device (not shown) emits a laser beam that is reflected on the optical storage medium (not shown), and the passing through hole 3e' passes through the lens supporting portion 3c. More specifically, the lens 3c is formed on the lower side of the objective lens 2 supported by the upper end surface of the lens supporting portion 3c through the hole 3e. . The drive mechanism 6 has, in addition to the above-described vehicle 8, a first drive magnet u and two second drive magnets 14, 14 for driving the lens holder 3 in the focus direction and the tracking direction for making the lens holder 3 The focus drive coil 15 driven in the focus direction, and two tracking drive coils 6 for driving the lens holder 3 in the tracking direction, "! The first driving magnet 13' is fixed to have a flat rectangular parallelepiped shape. The first magnet supporting iron 13 in the first embodiment has a width, a width, and a side surface in the longitudinal direction. The width of the first drive magnet is substantially the same. And the first drive magnets 14 and 14 in the longitudinal direction of the north of the first magnet support portion, the e-shape e is formed into a rectangular parallelepiped shape, and is respectively fixed in the second and second of the younger figure #.左侧8c, 8c are on the left side of each side. That is, the second drive magnets ^, the moving magnets 14, 14 are disposed on both sides of the lens support portion 3c in the tracking direction. Further, the width of the tracking direction of the cage_first-drive magnets 14, 14 is branched from the second magnet. The widths of the tracking directions of 卩8c and 8c are substantially the same. That is to say, the first driving magnets 14, 14 are arranged in the longitudinal direction so as not to exceed the outer side of the bellows 3 in the longitudinal direction. In other words, the second drive magnets 14, 14 are disposed between the two side faces (the upper side and the lower side in the first drawing) perpendicularly intersecting the tracking direction of the main body portion 3b in the tracking direction. Therefore, it is possible to reduce the size of the objective lens driving device 1 in the vertical direction. The first drive magnet 13 and the second drive magnets 4, 4 are magnetized at both poles in the direction of the cutting direction. More specifically, for example, the first drive magnets and the second drive magnets 14, 14' are magnetized in the first figure or the like so that the right end surface thereof is the s pole and the left end surface is the N pole. The focus drive coil 彳5 is wound in a substantially rectangular shape along the outer circumference of the coil winding portion 3f and the lower surface of the turn connecting portion 3g as in the first figure or the like. More specifically, in the state where the entire circumference of the inner peripheral side of the focus drive coil 彳5 is in contact with the coil bobbin and the outer circumference of the crotch portion 3f, and above the upper surface of the focus drive coil j 5 and the coil contact portion 3g In the state in which the surface is in contact, the focus drive coil 15 is fixed to the outer peripheral side 16 1318401 of the coil winding portion 3f by a method such as sticking. The outer circumference side of the wire constituting the focus drive coil 15 is covered with a hot-spot film, and the focus drive coil 15 is embedded and fixed in the coil roll in a state of being self-heat-bonded after being wound by the hollow core. On the winding 3f.

^跟蹤驅動線圈16、16，捲繞成扁平的長方形形狀，如 第-圖及第三圖所示’安裝在透鏡架3的安裝部％、如及 聚焦驅動線圈15上。更具體地說’與跟蹤驅動線圈16、16 的扁平方向垂直相交的自（與繞線方向垂直相交的面）中 的其中一面，通過粘結等方法固定在透鏡架3的安裝部 d 3d與第二圖中的聚焦驅動線圈1 5的右側面上。與聚 焦驅動線圈1 5相同，構成跟蹤驅動線圈】6、] 6的導線外 周側上覆蓋著熱粘接覆膜。而且，跟蹤驅動線圈，6、1 6， 在以空芯捲繞後經過自熱粘接處理的狀態下，安裝在透鏡 木3的安裝部3d、3d及聚焦驅動線圈’ 5上。如第一圖等 所不，跟蹤驅動線圈彳6、彳6，在切向方向上與第二驅動磁 鐵1 4、1 4相對。 如第一圖等所示，本實施形態中，在透鏡架3的線圈 捲繞部3f的外周側上設置有聚焦驅動線圈’ 5。另外，跟蹤 驅動線圈16、16安裝在安裝部3d、3d及第三圖中的聚焦 驅動線圈1 5的右側面上。進而’第一驅動磁鐵13與第二 驅動磁鐵14、14,是夾住主體部3b的右側面側而設置的。 因此，在聚焦驅動線圈1 5的一邊以及跟蹤驅動線圈，6、” 6 被设置的同時，由第一驅動磁鐵】3與第二驅動磁鐵1 4、14 以及軛8形成的磁路’通過透鏡支持部％突出的主體部3b 的右側面部分。也就是說，主體部3b的右側面部分，與通 17 !318401 過驅動機構6而被驅動的透鏡架 動中心大體一致。 在具有如上所述構成的物鏡 初扳置1中，若對甲隹 驅動線圈15提供電流，則透鏡架 1焦 .. 牡眾·焦方向上驅動；裳 對跟蹤驅動線圈1 6、1 6提供電流彳 上驅動。 Μ鏡*3在跟縱方向 (本實施形態的主要效果） 如以上所說明’在本實施形態的物鏡驅動裝置，中 在用於使透鏡帛3向聚焦方向及跟縱方向驅動的第_ 磁鐵13以及兩個第二驅動磁鐵14、 甲，第一驅動磁鐵 U設置在透鏡架3的貫穿孔33内，第二驅動磁鐵14、14 則設置在透鏡支持部3。的跟蹤方向兩側上。因此，在物铲 驅動裝置1中’不需要考慮第二驅動磁鐵14、14的大小= 就能夠在透鏡架3上形成貫穿孔3a。 ^， 口此，犯夠形成比較 小的貫穿孔3a，從而能夠縮小透鏡架3自身的大小。其社 果是，能夠縮短透鏡架3的驅動中心與物鏡2之間的距/離 即使在透鏡架3高頻驅動從而跟蹤光存儲媒介物上産生的 偏心和表面振動的情況下，也難以在透鏡架3上產生扭曲 和歪斜等變形。另外，由於即使在透鏡架3的驅動中心與 物鏡2之間，透鏡架3上產生扭曲和歪斜等變形的情況下^ 也能夠縮短透鏡架3的驅動中心與物鏡2之間的距離，因 此能夠使在透鏡支持部3c上的變形量變小。其結果是，& 夠使物鏡2以較好的靈敏度跟蹤光存儲媒介物上産生的2 心和表面振動。 特別是在本實施形態中，透鏡支持部3c突出的主體部 18 1318401 > * 3b的右側面部分，與通過驅動機構6而被驅動的透鏡架3 的驅動中心大體一致。因此，能夠縮短透鏡架3的驅動中 心與物鏡2之間的距離，即使在透鏡架3高頻驅動的情況 下，也難以在透鏡架3上産生扭曲和歪斜等變形。另外， 即使在透鏡架3的驅動中心與物鏡2之間，透鏡架3上產 生扭曲和歪斜等變形的情況下，在透鏡支持部孔上的變形 量也變小。其結果是，能夠使物鏡2以較好的靈敏度跟蹤 光存儲媒介物上産生的偏心和表面振動。 另外，在本實施形態的物鏡驅動裝置彳中，跟蹤驅動 線圈16、16與第二驅動磁鐵14、14在切向方向上相對。 因此，能夠將與第二驅動磁鐵14、14相對的跟蹤驅動線圈 16、16設置在透鏡架3的主體部3b側（更具體地說，是 主體部3b的右側面）上。所以，即使與跟蹤驅動線圈16、 16設置在透鏡支持部3cJl的情況相比較，透鏡架3高頻驅 動的情況下，也能夠抑制因跟蹤驅動線圈’ 6、，6重量的影 鲁響而產生的透鏡架3的變形。其結果是，能夠抑制在透= 支持部3c上的變形量’能夠使物鏡2以較好的靈敏度跟蹤 光存儲媒介物上産生的偏心和表面振動。 在本實施形態中’聚焦驅動線圈15是沿著線圈捲繞部 的外周而捲繞的。因此，如本實施形態，即使在從聚焦 方向觀察時線圈捲繞部3f的厚度形成得比較薄、從而主體 部3b的剛性降低的情況下，通過以空芯捲繞後經過自熱= 接處理的聚焦驅動線圈15的剛性，能夠抑制透鏡架3的扭 曲和歪斜等變形。因此，即使在透鏡架3高頻驅動的情況 19 1318401 下’也成夠抑制透鏡架3的變形，能夠使物鏡2以較好的 靈敏度跟縱光存儲媒介物上産生的偏心和表面振動。 4寺另彳是在本實施形態中，在聚焦驅動線圈1 5的内周側 王周與線圈捲繞部3f的外周接觸的狀態下，聚焦驅動線圈 1 5通過枯結等被固定。因此，能夠進一步有效地提高透鏡 架3的剛性。 (實施形態一的變形例一） 在上述貫施形態一涉及的物鏡驅動裝置1中，聚焦驅 動線圈1 5在以空芯捲繞後嵌入固定在線圈捲繞部3f上。但 疋’聚焦驅動線圈！ 5 ’也可以通過繞線機直接捲繞在線圈 、堯P 3f上。這種情況下，為了防止捲繞工作時導線捲散 .月兄如第五圖所示，以在線圈播繞部3f的下端側上設 置朝外側擴展的轴環部3h為佳。而且，即使在這種情況下， 捲繞後的聚焦驅動線圈15上會有熱被施加，聚焦驅動線圈 1 5被自熱粘接處理。 (實施形態一的變形例二） 上述實施形態一涉及的物鏡驅動裝置1是，透鐘牟3 通過鋼絲4的支持能夠向聚焦方向以及跟縱方向移動的鋼 絲懸吊型的物鏡驅動裝置，是，如第六圖及第七圖所干， 物鏡驅動裝置也可以是，透鏡架23通過支撑轴24 能夠向聚焦方向以及跟蹤方向移 、 鏡陶置。以下，對該物鏡駆動裝置=1動說= 且，在以下的說明中，對於和物鏡驅動裝置1二 標以同-符號，並省略或簡化其說明。、 同的構成 20 1318401 物鏡驅動裝置21與物鏡 進行高頻驅動的物鏡，驅動 二置1相同’也是能夠能 示’該物鏡驅動裝置21且\ 帛八圖以及第七圖所 架23,以支撐軸24 支持物鏡2的透鏡 及邡蹤方6 η 、透兄尜23、使其能夠向聚焦方向 及跟蹤方向移動的固定側部 ^ , 乂及使透鏡架23向聚隹 ° 〈蹤方向驅動的驅動機構26。 、、、 固定側部件25除了支撑轴24之外，還具有： 支撐軸24的塊狀的軸固定 加八门士 竿口疋#件27,與構成駆動機構26的 一 h、同時固定在軸固定部件27上的軛28。如第七 所示’支料24的下端在圖示左端側上固定在軸固定部件 27上。 輛28與輕8相同，由且古讲 由具有磁性的金屬部件形成，由底 面部28a，從底面部28a變曲踉 _ 4曲硯起而形成的、固定第一驅 動磁鐵1 3的第一磁纖φ才主9 h ^磁鐵叉待部28b，以及從底面部28a彎曲 蹺起而形成的、分別固定第二驅動磁鐵14、14的兩個第二 磁鐵支持部28c、28c構成。與實施形態一相同，第一磁鐵 支持部28b配置在形成於透鏡架23上的後述貫穿孔23a 内，第二磁鐵支持部28c、28c配置在構成透鏡架23的後 述透鏡支持部2 3 c的跟縱方向兩側上。 透鏡架23具有，分別相當於主體部3b及透鏡支持部 3c的主體部23b及透鏡支持部23c。如第八圖所示，主體 部23b設有，分別相當於線圈捲繞部3f及線圈相接部扣 的線圈捲繞部23f及線圈相接部23g。該主體部23b上形成 了相當於上述貫穿孔3a的貫穿孔23a，另外，位於透鏡支 21 1318401 持部23c兩側上的主體部23b的右側面，成為相當於上述 安裝部3d、3d的安裝部23d、23d (參照第八圖)'、The tracking drive coils 16, 16 are wound into a flat rectangular shape, as shown in Figs. 3 and 3, mounted on the mounting portion % of the lens holder 3, such as the focus drive coil 15. More specifically, one of the surfaces (the surfaces perpendicularly intersecting the winding direction) perpendicularly intersecting the flat direction of the tracking drive coils 16 and 16 is fixed to the mounting portion d 3d of the lens holder 3 by bonding or the like. The right side of the focus drive coil 15 in the second figure. Similarly to the focus drive coils 15, the outer peripheral side of the wires constituting the tracking drive coils 6, 6 is covered with a thermal adhesive film. Further, the tracking drive coils 6, 6 and 6 are attached to the mounting portions 3d and 3d of the lens 3 and the focus drive coil '5 in a state of being subjected to self-heat bonding treatment after being wound by the hollow core. As in the first figure or the like, the tracking drive coils 彳6, 彳6 are opposed to the second drive magnets 14 and 14 in the tangential direction. As shown in the first figure and the like, in the present embodiment, the focus drive coil '5 is provided on the outer peripheral side of the coil winding portion 3f of the lens holder 3. Further, the tracking drive coils 16, 16 are mounted on the right side faces of the mounting portions 3d, 3d and the focus drive coils 15 in the third figure. Further, the first drive magnet 13 and the second drive magnets 14 and 14 are provided to sandwich the right side surface side of the main body portion 3b. Therefore, at the side of the focus drive coil 15 and the tracking drive coil 6, while "6 is provided, the magnetic path ' formed by the first drive magnet 3' and the second drive magnets 14 and 14 and the yoke 8 passes through the lens The support portion % protrudes from the right side portion of the main body portion 3b. That is, the right side portion of the main body portion 3b substantially coincides with the lens holder moving center that is driven by the through drive mechanism 6; The objective lens is configured to be initially set to 1. If the current is supplied to the nail drive coil 15, the lens holder 1 is driven by the focus of the lens and the focus is driven. The skirt drives the tracking drive coils 16 and 16 to provide current driving. Μ mirror *3 in the vertical direction (main effect of the present embodiment) As described above, in the objective lens driving device of the present embodiment, the _th magnet for driving the lens 帛3 in the focusing direction and the vertical direction is used. 13 and two second drive magnets 14, A, the first drive magnets U are disposed in the through holes 33 of the lens holder 3, and the second drive magnets 14, 14 are disposed on both sides of the lens support portion 3 in the tracking direction. Therefore, in the shovel drive In the first step, the through hole 3a can be formed on the lens holder 3 without considering the size of the second drive magnets 14, 14. ^, the mouth can be formed into a relatively small through hole 3a, so that the lens holder 3 can be reduced. The size of the self is such that the distance between the driving center of the lens holder 3 and the objective lens 2 can be shortened even if the lens holder 3 is driven at a high frequency to track the eccentricity and surface vibration generated on the optical storage medium. It is also difficult to cause distortion such as distortion and skew on the lens holder 3. Further, since the lens holder 3 is deformed such as distortion and skew even between the driving center of the lens holder 3 and the objective lens 2, the lens can be shortened. The distance between the driving center of the frame 3 and the objective lens 2 can thereby reduce the amount of deformation on the lens supporting portion 3c. As a result, & enables the objective lens 2 to track the generation of the optical storage medium with better sensitivity. 2. Heart and surface vibration. In particular, in the present embodiment, the right side surface portion of the main body portion 18 1318401 > * 3b protruding from the lens supporting portion 3c is larger than the driving center of the lens holder 3 driven by the driving mechanism 6. Therefore, the distance between the driving center of the lens holder 3 and the objective lens 2 can be shortened, and even when the lens holder 3 is driven at a high frequency, it is difficult to cause distortion such as distortion and skew on the lens holder 3. When the lens holder 3 is deformed by distortion or skew between the driving center of the lens holder 3 and the objective lens 2, the amount of deformation on the lens supporting portion hole is also small. As a result, the objective lens 2 can be made smaller. Good sensitivity is used to track eccentricity and surface vibration generated in the optical storage medium. Further, in the objective lens driving device 本 of the present embodiment, the tracking drive coils 16 and 16 and the second drive magnets 14 and 14 face each other in the tangential direction. Therefore, the tracking drive coils 16 and 16 facing the second drive magnets 14 and 14 can be provided on the main body portion 3b side of the lens holder 3 (more specifically, on the right side surface of the main body portion 3b). Therefore, even when the lens holder 3 is driven at a high frequency as compared with the case where the tracking drive coils 16 and 16 are provided in the lens support portion 3cJ1, it is possible to suppress the occurrence of the shadow of the tracking drive coils '6, 6 and 6 The deformation of the lens holder 3. As a result, it is possible to suppress the amount of deformation on the through-support portion 3c, which enables the objective lens 2 to track the eccentricity and surface vibration generated on the optical storage medium with good sensitivity. In the present embodiment, the focus drive coil 15 is wound around the outer circumference of the coil winding portion. Therefore, according to the present embodiment, even when the thickness of the coil winding portion 3f is relatively thin when viewed from the focus direction, and the rigidity of the main body portion 3b is lowered, the self-heating is performed after being wound by the hollow core. The rigidity of the focus drive coil 15 can suppress deformation such as distortion and skew of the lens holder 3. Therefore, even in the case where the lens holder 3 is driven at a high frequency, the deformation of the lens holder 3 is suppressed, and the objective lens 2 can be caused to have eccentricity and surface vibration generated on the medium with the longitudinal light with good sensitivity. In the present embodiment, in the state in which the inner circumference side of the focus drive coil 15 is in contact with the outer circumference of the coil winding portion 3f, the focus drive coil 15 is fixed by dryness or the like. Therefore, the rigidity of the lens holder 3 can be further effectively improved. (Variation 1 of the first embodiment) In the objective lens driving device 1 according to the first aspect of the invention, the focus drive coil 15 is wound around the coil winding portion 3f after being wound by the hollow core. But 疋’ focus on the drive coil! 5 ' can also be wound directly on the coil and 尧P 3f by a winding machine. In this case, in order to prevent the wire from being scattered during the winding operation, as shown in Fig. 5, it is preferable to provide the collar portion 3h which is expanded outward on the lower end side of the coil winding portion 3f. Moreover, even in this case, heat is applied to the wound drive coil 15 after winding, and the focus drive coil 15 is self-heat-bonded. (Variation 2 of the first embodiment) The objective lens driving device 1 according to the first embodiment is a wire suspension type objective lens driving device that can move in the focusing direction and the vertical direction by the support of the wire 4; As shown in the sixth and seventh figures, the objective lens driving device may be such that the lens holder 23 can be moved to the focusing direction and the tracking direction by the support shaft 24, and the mirror is placed. In the following description, the objective lens swaying device is assumed to be the same as the sign of the objective lens driving device 1, and the description thereof is omitted or simplified. The same configuration 20 1318401 The objective lens driving device 21 and the objective lens for high-frequency driving of the objective lens, the same as the two-set 1 'can also show the objective lens driving device 21 and the eight-frame and the seventh frame 23 to support The shaft 24 supports the lens of the objective lens 2 and the traverse side 6 η , the 尜 23 , the fixed side portion which enables the movement to the focus direction and the tracking direction, and the lens holder 23 to be driven in the convergence direction. Drive mechanism 26. The fixed side member 25 has, in addition to the support shaft 24, a block-shaped shaft-fixing and eight-mouth 疋# member 27 of the support shaft 24, and a h that constitutes the swaying mechanism 26, and is fixed to the shaft at the same time. The yoke 28 on the fixing member 27. The lower end of the 'batch 24' is fixed to the shaft fixing member 27 on the left end side as shown in the figure. The vehicle 28 is the same as the light 8 and is formed of a magnetic metal member. The first portion of the first driving magnet 13 is formed by the bottom surface portion 28a being bent from the bottom surface portion 28a. The magnetic fiber φ is formed mainly by the main magnet 9h, the magnet fork waiting portion 28b, and the two second magnet supporting portions 28c and 28c which are formed by bending the bottom surface portion 28a and fixed the second driving magnets 14, 14 respectively. Similarly to the first embodiment, the first magnet supporting portion 28b is disposed in a through hole 23a which will be described later formed in the lens holder 23, and the second magnet supporting portions 28c and 28c are disposed in a lens supporting portion 2 3c which will be described later of the lens holder 23. On both sides in the longitudinal direction. The lens holder 23 has a main body portion 23b and a lens support portion 23c corresponding to the main body portion 3b and the lens support portion 3c, respectively. As shown in Fig. 8, the main body portion 23b is provided corresponding to the coil winding portion 3f and the coil winding portion 23f and the coil abutting portion 23g of the coil abutting portion. The main body portion 23b is formed with a through hole 23a corresponding to the through hole 3a, and the right side surface of the main body portion 23b on both sides of the lens holder 21 1318401 holding portion 23c is mounted corresponding to the mounting portions 3d and 3d. Parts 23d, 23d (refer to the eighth figure)',

透鏡架23在這些構成的基礎上，還具有形成了插通支 撑轴24的軸承孔23i的轴承部23j。如第六圖等所示，軸 承部23j是，從主體部23b左側面的跟蹤方向中心部分向圖 示左侧方向突出而設置的。另外，軸承部23j在聚焦方I 上，形成與主體部23b的高度大致相同的高度，確保軸承 孔23i與支撐軸24之間滑動部分的長度。因此，通過支撐 軸24與軸承孔23i，能夠將透鏡架23適當地引向聚焦方向。 驅動機構26,具有：輛28,第一驅動磁鐵13 ’兩個 第二驅動磁鐵14、14，聚焦驅動線圈15,以及兩個跟蹤驅 動線圈16、16。物鏡驅動裝置21也和物鏡驅動裝置]相 同，第六圖中的主體部23b右側面部分，與通過驅動機構 26而被驅動的透鏡架23的驅動中心大體一致。 即使是具有如上構成的物鏡驅動裝置21，也能夠得到 與上述物鏡驅動裝置1相同的效果。 (貫施形態一的變形例三） 在上述實施形態一涉及的物鏡驅動裝置彳中，跟縱驅 動線圈16、16分別安裝在，作為位於透鏡支持部3c兩側 上的主體部3b右側面的安裝部3d、3d，以及聚焦驅動線 圈1 5的右側面上。但是，跟蹤驅動線圈彳6、1 6的安裝位 置並不限定於安裝部3d、3d以及聚焦驅動線圈15的右側 面。 例如’如第九圖（A)所示，也可以將跟縱驅動線圈1 6、 22 1318401 • 16分別安裝在與主體部3b的跟蹤方向垂直相交的兩側面 (第九圖(A)中的上側面與下側面）上。更具體地說，也可 以將跟蹤驅動線圈16、16分別安裝在第九圖（a)中的線圈 相接部3g及聚焦驅動線圈15的上側面上，或第九圖（八）中 的線圈相接部3g及聚焦驅動線圈彳5的下側面上。即使在 這種情況下’也能夠得到與上述實施形態一相同的效果。 而且，在種情況下，也可以加寬第二驅動磁鐵，4、14的 ,方向的寬度以及第二磁鐵支持部8g、8g的跟縱方向的 見度，使第二驅動磁鐵14、彳4與跟蹤驅動線圈1 6、1 6在 切向方向上相對。 另外，如第九圖（B)所示，也可以在透鏡架3的主體部 3b右側面的内周側上，形成向外侧（第九圖中的右側） 塌陷的兩個凹部，並在該兩個凹部上分別安裝跟縱驅動線 圈1 6、1 6。在這種情況下，也能夠得到與上述實施形態一 相同的效果。另外，通過捲繞在線圈捲繞部3f上的聚二驅 瞻 Λ圈1 5以及δ又置在主體部3b内周側上的跟縱驅動線圈 1 6、1 6，透鏡架3的強度得以加強，能夠抑制透鏡架3上 産生的扭曲和歪斜等變形。 ^進而，如第九圖（C)所示，也可以在與主體部3b的跟 蹤方向垂直相交的兩側面（第九圖（c)中的上側面與下侧面） =:周側上，分別形成向外側（第九圖（c)中的上側或下側） j陷的凹部，並在該凹部上分別安裝跟蹤驅動線圈彳6。在 每種情況下，也能夠得到與上述實施形態一相同的效果。 另外，與第九圖（B)所示的物鏡驅動裝置㈣，通過聚焦驅 23 1318401 以圏5以及跟縱驅動線圈16、16，使透鏡 付=強’能夠抑制透鏡架3上産生的扭曲和歪斜等變形: ::，如第九圖(D)所示，也可以在主體部 t圖部&側角部的兩處所上，形成向外側（第 在:)中的右側以及上側、或右側以及下側)塌陷， 二在=二別安裝跟縱驅動線圈16、16。在這種情況In addition to these configurations, the lens holder 23 further has a bearing portion 23j in which a bearing hole 23i through which the support shaft 24 is inserted is formed. As shown in Fig. 6 and the like, the bearing portion 23j is provided so as to protrude from the center portion in the tracking direction of the left side surface of the main body portion 23b in the left direction. Further, the bearing portion 23j has a height substantially equal to the height of the main body portion 23b on the focus side I, and ensures the length of the sliding portion between the bearing hole 23i and the support shaft 24. Therefore, the lens holder 23 can be appropriately guided to the focus direction by the support shaft 24 and the bearing hole 23i. The drive mechanism 26 has a vehicle 28, a first drive magnet 13', two second drive magnets 14, 14, a focus drive coil 15, and two tracking drive coils 16, 16. The objective lens driving device 21 is also the same as the objective lens driving device, and the right side portion of the main body portion 23b in the sixth drawing substantially coincides with the driving center of the lens holder 23 driven by the driving mechanism 26. Even with the objective lens driving device 21 having the above configuration, the same effects as those of the objective lens driving device 1 described above can be obtained. (Variation 3 of the first embodiment) In the objective lens driving device according to the first embodiment, the vertical drive coils 16 and 16 are attached to the right side of the main body portion 3b on both sides of the lens support portion 3c. The mounting portions 3d, 3d, and the right side surface of the focus drive coil 15 are provided. However, the mounting positions of the tracking drive coils 、6, 16 are not limited to the mounting portions 3d, 3d and the right side of the focus drive coil 15. For example, as shown in the ninth diagram (A), the vertical drive coils 16 and 22 1318401 • 16 may be respectively mounted on both sides perpendicular to the tracking direction of the main body portion 3b (the ninth diagram (A) Upper side and lower side). More specifically, the tracking drive coils 16, 16 may be respectively mounted on the coil contact portion 3g in the ninth diagram (a) and the upper side surface of the focus drive coil 15, or the coil in the ninth diagram (eight) The contact portion 3g and the lower side surface of the focus drive coil 彳5. Even in this case, the same effects as those of the above-described first embodiment can be obtained. Further, in the case of the case, the width of the second drive magnets 4, 14 in the direction and the visibility of the second magnet support portions 8g, 8g in the longitudinal direction may be widened so that the second drive magnets 14, 彳 4 It is opposite to the tracking drive coils 16, 6 in the tangential direction. Further, as shown in FIG. 9(B), two recessed portions which are collapsed to the outside (the right side in the ninth diagram) may be formed on the inner peripheral side of the right side surface of the main body portion 3b of the lens holder 3, and The longitudinal drive coils 16 and 16 are mounted on the two recesses, respectively. Also in this case, the same effects as those of the first embodiment described above can be obtained. Further, the strength of the lens holder 3 is obtained by the poly-secondary drive coils 15 wound on the coil winding portion 3f and the vertical drive coils 16 and 16 which are placed on the inner peripheral side of the main body portion 3b. The reinforcement can suppress deformation such as distortion and skew generated on the lens holder 3. Further, as shown in the ninth diagram (C), it is also possible to have two side faces perpendicular to the tracking direction of the main body portion 3b (the upper side and the lower side in the ninth diagram (c)) =: on the circumference side, respectively A recess that is recessed toward the outer side (the upper side or the lower side in the ninth diagram (c)) is formed, and the tracking drive coil 彳6 is attached to the recess, respectively. In each case, the same effects as those of the above-described first embodiment can be obtained. Further, with the objective lens driving device (four) shown in the ninth diagram (B), the lens is biased and strong by the focus drive 23 1318401 with the 圏 5 and the vertical drive coils 16 and 16, and the distortion generated on the lens holder 3 can be suppressed. Deformation such as skew: ::, as shown in the ninth diagram (D), on the right side (on the right side) and the upper side, or on the two sides of the main portion t and the side corner portion, or The right side and the lower side are collapsed, and the second and lower longitudinal drive coils 16, 16 are mounted. In this case

第九圖(b)、Γ二上二Γ形態一相同的效果。另外，與 帛九圖（C)所示的物鏡驅動裝置㈣，通過聚 線圈15以及跟縱驅動線圈16、16，透鏡架3的強 f強’能夠抑制透鏡帛3上産生的扭曲和歪斜等變 中 16 外，在第六圖等所示的軸滑動型的物鏡驅動裝置21 也可^在第九圖⑻〜第九圖（D)所示的跟蹤驅動線圈 1 6的設置位置上’設置跟蹤驅動線圈1 6、1 6。 〔實施形態二] (物鏡驅動裝置的構成） 第十圖是表示本發明實施形態二涉及的物鏡驅動 51的俯視圖。第十-圖是第十圖所示的透鏡架53 = =’其中（A)是側面圖，（B)是（A)的從γ_γ方向觀察的正視 圖〇 如第十圖及第十一圖所示，本實施形態的物鏡驅動裝 在透鏡架53上形成了兩個線圈捲繞部53f、53f， 6在$各個線圈捲繞部53f、53f上分別捲繞有聚焦驅動線圈 、65，在這一點上與實施形態一涉及的物鏡驅動裝置） 24 !318401 有所不同。另外，本實施形態的物鏡驅動裝置51，利用捲 繞在一方的線圈捲繞部53f上的聚焦驅動線圈65上產生的 驅動力、與捲繞在另一方的線圈捲繞部53f上的聚焦驅動線 圏65上產生的驅動力之差，使透鏡架53向傾斜方向（以 箭頭標誌丁丨表示的方向）驅動這一點上，與實施形態—涉 及的物鏡驅動裝置彳W。因此™這種*同的構成 為中心，來說明本實施形態的物鏡驅動裝置51，對於和物 鏡驅動裝Ϊ 1相同的構成標以同一符號，並省略或簡化其 初蜆驅動裝置 丄 叫么_ , π ,疋恥约進 :頻㈣的物鏡驅動裝置。如第十圖所示，該物鏡驅動裳 51是所謂的鋼絲懸吊型的物鏡驅動裝置，言免有：物: 鏡2的透鏡架53，以六根鋼絲4支持透鏡架‘ ;;:聚焦方向、跟縱方向以及傾斜方向移動的固4The ninth figure (b) and the second form of the second form have the same effect. Further, with the objective lens driving device (4) shown in Fig. 9 (C), the strong f strongness of the lens holder 3 by the poly coil 15 and the vertical drive coils 16 and 16 can suppress distortion and skew generated on the lens unit 3, and the like. In addition, the objective lens driving device 21 of the shaft sliding type shown in Fig. 6 or the like can also be set at the setting position of the tracking drive coil 16 shown in Figs. 9(8) to 9(D). The drive coils 16.6, 16 are tracked. [Embodiment 2] (Structure of the objective lens driving device) Fig. 10 is a plan view showing the objective lens driving 51 according to the second embodiment of the present invention. The tenth-figure is the lens holder 53 shown in the tenth figure ==' where (A) is a side view, and (B) is a front view of (A) as viewed from the γ_γ direction, such as the tenth and eleventh As shown in the objective lens drive unit of the present embodiment, two coil winding portions 53f and 53f are formed on the lens holder 53, and a focus drive coil 65 is wound around each of the coil winding portions 53f and 53f. This point is different from the objective lens driving device of the first embodiment) 24 !318401. Further, the objective lens driving device 51 of the present embodiment uses the driving force generated by the focus drive coil 65 wound around one of the coil winding portions 53f and the focus drive wound around the other coil winding portion 53f. The difference between the driving forces generated in the turns 65 causes the lens holder 53 to be driven in the oblique direction (the direction indicated by the arrow mark D), and the objective lens driving device 实施W according to the embodiment. Therefore, the configuration of the objective lens driving device 51 of the present embodiment is the same as that of the objective lens driving device 1 of the present embodiment, and the same reference numerals are given to the same configuration as the objective lens driving device 1, and the initial driving device is omitted or simplified. , π, shame about: the objective lens drive device of frequency (four). As shown in the tenth figure, the objective lens driving skirt 51 is a so-called wire suspension type objective lens driving device, and the object is: a lens holder 53 of the mirror 2, supporting the lens holder with six wires 4;;: focusing direction Solid 4 moving in the longitudinal direction and the oblique direction

=广以及使透鏡架53向聚焦方向 '跟縱方向 J 方向驅動的驅動機構56。 、斜 固定側料55’具有六根鋼絲4與支架支 另外’固定側部件55還具有，在構 。 成驅動機構56的一部分的概58。鋼絲4的前：：问時，構 接被固定於在透鏡年53的跟^«古a '通過焊 “η 木的料方向兩側上固定的中心 〇上。另外’鋼絲4的基端侧，通過焊 ：電路 木支持部件7背面的印刷電路板11上。支加 安裝於 在圖示左端側上通過轴結等固定卞*部件7， 上。 固…58的上表面 25 1318401 輛5 8與上述輕8相同，利用尤辟力』 為大致長方形## 秀鋼板等的薄鋼板形成 灰万屯形狀。該軛58是， 在形成於透鏡¥ 53 + 底面。卩58a，分別配置 定後述兩個第一酿# ^ a 53a内、同時固 昂 艇動磁鐵63、63的兩袖铱 58b、58b，以及西…、 的兩個第-磁鐵支持部 以及配置在透鏡架53的透 方向兩側上、π “ 7補支持部53c的跟縱 上间時分別固定後述兩個第二驅動磁磁 的兩個第二磁鐵支持部58「58c構成。 ' 64 58Λ—Λ鐵支持部58b、58b以及第二磁鐵支持部阶、 第—磁鐵H底面部58^#蹺起而形成的。更具體地說， 乐磁鐵支持部58b、^ . 58b疋，在底面部58a的切向方向的= wide and a drive mechanism 56 that drives the lens holder 53 in the focus direction 'direction J direction. The oblique fixed side material 55' has six steel wires 4 and a bracket support. The fixed side member 55 also has a configuration. An overview of a portion of the drive mechanism 56. Front of the steel wire 4: When asked, the joint is fixed to the center 固定 fixed on both sides of the material direction of the η wood by the welding of the lens of the year 53. In addition, the base end side of the steel wire 4 By soldering: on the printed circuit board 11 on the back side of the circuit board supporting member 7. Mounted on the left end side of the figure, the 卞* member 7 is fixed by a shaft or the like, and the upper surface of the solid housing 58 is 25 1318401 5 8 In the same manner as the light weight 8 described above, the yoke is formed into a ruthenium-like shape of a thin steel plate such as a substantially rectangular steel plate. The yoke 58 is formed on the bottom surface of the lens ¥53 + 卩58a. Two first armatures 58b, 58b of the first fermenting magnets 63, 63, and two first magnet-supporting portions of the west and the other side of the lens holder 53 The upper and lower sides of the π"7 complement support portion 53c are respectively fixed to the two second magnet support portions 58"58c of the two second drive magnetisms described later. '64 58Λ-the iron support portions 58b, 58b and The second magnet support portion and the first magnet H bottom portion 58^# are formed. Le magnet support portion 58b, ^. 58b Cloth, in the tangential direction of the bottom portion 58a of

大致中心部上，银妒士上卞 WJ ^A 跟蹤方向兩端側從第十圖的左側向右側彎 曲蹺起而形成的。另外，篦- f r弟一磁鐵支持部58c、58c是，在 -面卩58a的右端側上，跟蹤方向兩端側從 向左側-曲蹺起而形成的。 圆的右側 透鏡架53由樹脂部件形成’如第十圖所示，由形成了 在聚焦方向上貫穿的兩個貫穿孔53a' 53a的主體部5北、 與以上端面支持物鏡2的透鏡支持部53c構成。 如第十—圖等所示，主體部53b是，形成於第十—圖 中下側部分的大致方形的兩個線圈捲繞部53卜，與形 成於第十一圖中上側部分的扁平長方體狀的線圈相接部 53g成為-體而構成的。如第十—圖⑻等所示，兩個線圈 捲繞部53f、53f，形成於線圈相接部53g的跟蹤方向兩端 側上。更具體地說，兩個線圈捲繞部53f、53f，形成於線 圈相接部53g的跟蹤方向兩端側上，使沿著線圈捲繞部 26 1318401 53f、53f的外周而捲繞的聚焦驅動線圈15、15不超出線圈 相接部53g的跟縱方向外側。另外，線圈相接部吻的下 側與聚焦驅動線圈15、15的一端相接。 如第十-圖等所示，貫穿孔53a、53a，分別形成於主 體部训的跟縱方向兩端側上，略呈長方形形狀。更具體 地說，貫穿孔53a、53a是，在聚焦方向上貫穿線圈捲繞部 =、53f而形成的。為了謀求透鏡架3的小型化、輕量化， /貝穿孔53a形成為，從聚焦方向觀察時線圈捲繞部防、 的厚度比車乂薄。另外，如第十圖所示，貫穿孔心、咖 内配置有第一磁鐵支持部58b、_、及後述第一驅動磁 63、63。 透鏡支持部53c與實施形態一相同，是從主體部5汕 右側面的跟縱方向中心部向切向方向（更具體地說，是第 ，圖的右側方向）突出而形成的。該透鏡支持冑伽的跟 '向的見度，比線圈相接部53g的跟蹤方向的寬度狹窄。 •=如，透鏡支持部53c的跟蹤方向的寬度，是線圈相接部 g的跟縱方向寬度的大約三分之-左右。位於透鏡支持部 > 1丨上的線圈相接部53g的右側面，成為安裝兩個跟蹤 驅動線圈1 6、1 r 、 1 6 —部分的安裝部53d、53d。 -β動機構56與上述驅動機構6相同，具有兩個跟蹤驅 動線圈 1 6、1 6，η β 冋時逛具有：軛58，用於使透鏡架53向 聚焦方向、跟炉+丄 吼万向以及傾斜方向驅動的兩個第一驅動磁 鐵6 3、β 3和兩 不口兩個第二驅動磁鐵64、64，以及用於使透鏡 架53向聚隹古人 …、石向.驅動的兩個聚焦驅動線圈65、65。 27 1318401 驅動磁鐵63、63，形成長方 第 第十圖中的兩個第一磁鐵支持部58b、58b的各個右側面 上。第一驅動磁鐵63、63的跟蹤方向的寬度，與第一磁鐵 支持部58b、58b的跟縱方向的寬度大致相同。第二驅動磁 鐵64、64，形成長方體形狀，分別固定在兩個第二磁鐵支 持部58c、58c的各個左側面上。也就是說，第二驅動磁鐵 64、64設置在透鏡支持部53c的跟蹤方向兩侧上。另外， 第二驅動磁鐵64、64的跟蹤方向的寬度，與第二磁鐵支持 部58c、58c的跟蹤方向的寬度大致相同。 與實施形態-相同，第一驅動磁鐵63、63以及第二驅 動磁鐵64、64,均在切向方向上兩極被磁化。更具體地說， 例如，第一驅動磁鐵63、63以及第二驅動磁鐵6心64, 在第十圖中，均被磁化為其右端面成3極，左端面成N極。 如第十圖等所示，聚焦驅動線圈65、65，沿著線圈捲 繞部53卜別的外周以及線圈相接部53g的下表面捲繞成 大致長方形形狀。更具體地說’在聚焦驅動線圈65、65的 内周側全周與線圈捲繞部53卜53f的外周接觸的狀態下， 並且’聚焦驅動線圈65、65的上表面與線圈相接部53g的 ::面接觸的狀恶下，聚焦驅動線圈65、65通過粘結等固 =線圈捲繞部53f、53f的外周側上。與實施形態一的聚On the center of the center, the silver gentleman's upper jaw WJ ^A is formed by bending the two ends of the tracking direction from the left side to the right side of the tenth figure. Further, the magnet-supporting portions 58c and 58c are formed on the right end side of the - facet 58a, and the both end sides in the tracking direction are formed from the left side to the left side. The circular right lens holder 53 is formed of a resin member. As shown in FIG. 10, the lens support portion of the objective lens 2 is formed by the main body portion 5 which forms the two through holes 53a' 53a penetrating in the focus direction. 53c constitutes. As shown in the tenth diagram and the like, the main body portion 53b is a substantially square two coil winding portion 53 formed in the lower portion of the tenth-figure, and a flat rectangular parallelepiped formed in the upper side portion in the eleventh drawing. The coil contact portion 53g is formed in a body. As shown in the tenth (Fig. 8) and the like, the two coil winding portions 53f and 53f are formed on both end sides of the coil abutting portion 53g in the tracking direction. More specifically, the two coil winding portions 53f and 53f are formed on both end sides in the tracking direction of the coil abutting portion 53g, and the focus drive is wound around the outer circumference of the coil winding portion 26 1318401 53f, 53f. The coils 15 and 15 do not extend beyond the longitudinal direction of the coil abutting portion 53g. Further, the lower side of the coil contact portion is in contact with one end of the focus drive coils 15, 15. As shown in the tenth-figure or the like, the through holes 53a and 53a are formed on both end sides in the longitudinal direction of the main body portion, and have a substantially rectangular shape. More specifically, the through holes 53a, 53a are formed by penetrating the coil winding portions =, 53f in the focus direction. In order to reduce the size and weight of the lens holder 3, the /bei perforation 53a is formed so that the thickness of the coil winding portion is smaller than that of the rudder when viewed from the focus direction. Further, as shown in the tenth diagram, the first magnet supporting portions 58b and _ and the first driving magnetic members 63 and 63 to be described later are disposed in the through hole and the inside of the coffee. Similarly to the first embodiment, the lens supporting portion 53c is formed so as to protrude from the center portion in the longitudinal direction of the right side surface of the main body portion 5'' in the tangential direction (more specifically, in the right direction of the drawing). The lens supports the sag of the sag, which is narrower than the width of the tracking direction of the coil abutting portion 53g. • = The width of the lens supporting portion 53c in the tracking direction is about three-thirds of the width of the coil abutting portion g in the longitudinal direction. The right side surface of the coil contact portion 53g located on the lens support portion > 1 is a mounting portion 53d and 53d to which two tracking drive coils 16, 1 r and 16 are mounted. The β-motion mechanism 56 is the same as the above-described drive mechanism 6, and has two tracking drive coils 16 and 16. η β 冋 逛 具有 has a yoke 58 for causing the lens holder 53 to be in the focus direction, Two first driving magnets 63, β3 and two non-porting two second driving magnets 64, 64 driven in an oblique direction, and two for driving the lens holder 53 to the front of the group Focusing drive coils 65, 65. 27 1318401 The drive magnets 63, 63 are formed on the respective right side faces of the two first magnet support portions 58b, 58b in the eleventh figure. The width of the first drive magnets 63, 63 in the tracking direction is substantially the same as the width of the first magnet supporting portions 58b, 58b in the longitudinal direction. The second drive magnets 64, 64 are formed in a rectangular parallelepiped shape and are respectively fixed to the respective left side faces of the two second magnet support portions 58c, 58c. That is, the second drive magnets 64, 64 are disposed on both sides of the lens support portion 53c in the tracking direction. Further, the widths of the second drive magnets 64, 64 in the tracking direction are substantially the same as the widths of the second magnet support portions 58c, 58c in the tracking direction. Similarly to the embodiment, the first drive magnets 63, 63 and the second drive magnets 64, 64 are both magnetized in the tangential direction. More specifically, for example, the first drive magnets 63, 63 and the second drive magnet 6 core 64 are magnetized in the tenth diagram to have their right end faces in three poles and the left end face in N poles. As shown in Fig. 10 and the like, the focus drive coils 65, 65 are wound into a substantially rectangular shape along the outer circumference of the coil winding portion 53 and the lower surface of the coil contact portion 53g. More specifically, in a state where the entire circumference of the inner circumference side of the focus drive coils 65, 65 is in contact with the outer circumference of the coil winding portion 53b, and the upper surface of the focus drive coils 65, 65 and the coil contact portion 53g The focus drive coils 65 and 65 are fixed by bonding or the like on the outer peripheral side of the coil winding portions 53f and 53f. Poly with the first embodiment

焦驅動線圈1 5相同，力拔士 A 在構成该聚焦驅動線® 65、65的導 線外周側上覆蓋著熱粘接覆膜 按復膜t焦駆動線圈65、65在以 二芯捲繞後經過自熱粘接處理 捲繞部53f、53f上。 ‘…喪入固定在線圈 28 1318401The focus drive coils 15 are identical, and the forceps A are covered with a thermal bonding film on the outer peripheral side of the wires constituting the focus drive lines® 65, 65. The laminated t-focus coils 65, 65 are wound after the two cores are wound. The wound portions 53f and 53f are subjected to self-heat bonding treatment. ‘...the funeral is fixed in the coil 28 1318401

本貫施形怨的聚焦驅動線圏65、65，具有作為用於使 透鏡采53向傾斜方向驅動的傾斜線圈的功能。也就是說， 在本實施形愁中’利用捲繞在-方的線圈捲繞部53f上的聚 焦驅動線圈65上産生的㈣力、與捲繞在另—方的線圈捲 繞部53f上的聚焦驅動線圈65上產生的驅動力之差，能夠 使透鏡架53向傾斜方向驅動。例如，在本實施形態的物鏡 驅動裝置51中，若對兩個聚焦驅動線圈65、65提供大小 相等的相同方向的電流，則在兩個聚焦驅動線圈的、的上 産生相同大小的驅動力’使透鏡架53在聚焦方向上驅動。 另外，例如’在物鏡驅動裝置51中，若對兩個聚焦驅動線 圈65、65分別提供大小不同的相同方向的電流，或分別對 兩個聚焦驅動線圈65、65提供不同方向的電流，則在兩個 b5上產生大小不同的驅動力，使透鏡架 53向傾斜方向驅動。 跟蹤驅動線圈16、16與實施形態—相同，安裝在透鏡The focus drive lines 65 and 65 of the present invention have a function as a tilt coil for driving the lens 53 in the oblique direction. In other words, in the present embodiment, the (four) force generated by the focus drive coil 65 wound on the coil winding portion 53f on the side is wound with the coil winding portion 53f wound on the other side. The difference in driving force generated in the focus drive coil 65 enables the lens holder 53 to be driven in the oblique direction. For example, in the objective lens driving device 51 of the present embodiment, when two currents of the same direction are supplied to the two focus drive coils 65 and 65, the same magnitude of driving force is generated on the two focus drive coils. The lens holder 53 is driven in the focus direction. Further, for example, in the objective lens driving device 51, if currents of the same direction are supplied to the two focus drive coils 65, 65, respectively, or currents of different directions are supplied to the two focus drive coils 65, 65, respectively, Driving forces of different sizes are generated on the two b5, so that the lens holder 53 is driven in an oblique direction. The tracking drive coils 16, 16 are identical to the embodiment and are mounted on the lens

架的安裝53d、53d，以及聚焦.驅動線圈65、65的第 十圖中的右側面，並在切向方向上與第二驅動磁鐵64、64 相對。另外，跟縱驅動線圈16、16的安裝位置並不限定於 安裝部53d、53d’以及聚焦驅動線圈65、65的第十圖中 的右側面，也可以將跟蹤驅動線圈16、16安裝在，與第九 圖（A)〜9(D)所示的賴驅動線圈16、16的安裝位置對應 的位置上。 ’在透鏡架53的線圈 驅動線圈1 5 »另外， 在本實施形態中，如第十圖所示 捲繞部53f、53f的外周侧上設有聚焦 29 1318401 跟蹤驅動線圈16、16,安裝在安裝部53d、咖以及聚焦 驅動線圈65、65的第十圖中的右侧面上。進而，第一驅動 磁鐵63、63與第二驅動磁鐵64、64，是以夹住主體部5兆 的、貫穿孔53a、53a的右側部分而設置的。因此，由第一 驅動磁鐵63、63與第二驅動磁鐵64、64以及輕58形成的 磁路，通過透鏡架53的、貫穿孔53a、53a的圖示右侧部 分。也就是說，主體部53b的、貫穿孔5以、533的右側部 分，與通過驅動機構56而被驅動的透鏡架53的驅動中心 _ 大體一致。 在具有如上構成的物鏡驅動裝置51中，若對聚焦驅動 線圈65、65提供電流，則透鏡架53在聚焦方向或傾斜方 向上驅動。另外’在物鏡驅動裝置51中，若對跟蹤驅動線 圈16、16提供電流，則透鏡架53在跟蹤方向上驅動。 (本實施形態的主要效果） 如以上所說明，本實施形態的物鏡驅動裝置51，在具 有上述物鏡驅動裝置1所具有的效果 2 ，下的效果。也就是說，在本實施形態中，利用捲二 的線圈捲繞部53f上的聚焦驅動線圈65上産生的驅動力、 與捲繞在另一方的線圈捲繞部53f上的聚焦驅動線圈仍上 産生的驅動力之差，能夠使透鏡架53在傾斜方向上驅動。 因此，不需要另行設置傾斜驅動用的驅動線圈和驅動磁 鐵，也能夠使透鏡架53向傾斜方向驅動。另外，由於聚焦 驅動線圈65、65是捲繞在厚度薄的線圈捲繞部5訂、5訂 上的，因此能夠通過聚焦驅動線圈65、65的剛性，來確保 30 1318401 透鏡架53的剛性。 (實施形態二的變形例） 上述實施形態二涉及的物鏡驅動裝置51是，透鏡架Μ :過鋼絲4的支持能夠向聚焦方向、跟縱方向以及傾斜方 °移動的鋼絲㈣型的物鏡驅動裝置。但是，如第十二圖 =，物鏡驅料置也可以是，透鏡架73通過由彈性^ 構成的合頁部7 4的支捭，鈐豹a取# + , 叉符此夠向聚焦方向、跟蹤方向以及 斜方向移動的、所謂合頁支持型的物鏡驅動裝置71。 如第十二圖所示，在該物鏡驅動裝置71中，透鏡架73 :主：部73b是，由分別相當於線圈捲繞部⑶、別及線 圈捲繞部73i、73f及線圈相接部7扣成 二：：構成的。在該主體部73b的跟縦方向兩端側上， 刀纟了編'方向上貫穿線圈捲繞部⑶、⑶的貫穿 孔7 3 a、7 3 a，略呈县古游 長方形形狀。另外，在主體部73b中， 兩個貝穿孔73a ' 73a之H s产+T1 a 伽… 向方向（第十二圖中的右 部八二而形成的’支架支持部件77是進入該塌陷 :;:;4置：。另外，透鏡架73與支架支持部件77,通過 :部：形成合頁部74是，例如，切系橡膠等的彈 鏡芊53的透^且拉透鏡架73的透鏡支持部73c與上述透 二圖Γ:=Γ:Γ具有相同的構成。另外，在第十 和上述貫施形態二相同的構成標以同-符號。 持型= 過合頁部74支持透鏡架^的合頁支 持型的物鏡驅動裝置71， 口貝 相同的效果。 也具有與上述物鏡驅動裝置51 31 1318401 〔其他實施形態〕 上述各個實施形態’雖然是本發明最適宜實施形態的 —個例子，但是本發明並不局限於此，在不改變本發明要 曰的範圍内能夠實施各種變形。例如，在上述各個實施形 癌中’在貝穿孔3a、23a、53a、73a内周側上，設置有第 一驅動磁鐵1 3、63以及第一磁鐵支持部8b、28b、58b。 但是，也可以在貫穿孔3a、23a、53a、73a内周側上，不 設置第一驅動磁鐵1 3、63 ’而只設置第一磁鐵支持部8b、 28b、58b。也就是說，也可以將未安裝第一驅動磁鐵13、 63狀態下的第一磁鐵支持部8b、28b、58b配置在貫穿孔 3a、23a、53a、73a 内周側上。 如上所述’聚焦驅動線圈1 5、65是捲繞在線圈捲繞部 3f、23f、53f、73f的外周。因此’如第一圖和第十圖等所 示’聚焦驅動線圈1 5、65的圖示右側的一邊與第二驅動磁 鐵14、64，以比較近的距離被配置。所以，即使在聚焦驅 動線圈15、65的内周側上只配置第一磁鐵支持部8fc)、28b、 58b的情況下’也能夠以規定的靈敏度驅動透鏡架3、23、 53 ' 73 〇 另外，在貫穿孔3a、23a、53a、73a内周側上未配置 有第一驅動磁鐵1 3、63的情況下，能夠形成比較小的貫穿 孔3a、23a、53a、73a。因此’在確保從聚焦方向觀察時 線圈捲繞部3f、23f、53f、73f厚度的狀態下，能夠縮小線 圈捲繞部3f、23f、53f、73f的外形。其結果是，即使不變 更透鏡架3、23、53、73的大小，也能夠增加從聚焦方向 32 1318401 觀察時聚焦驅動線圈15、65的厚度。也就是說’能夠增加 聚焦驅動線圈1 5、65的匝數。因此，能夠以更好的靈敏度 驅動透鏡架3、23、53、73。另外，通過增加聚焦驅動線 圈1 5、65的匝數（通過增加厚度），線圈捲繞部3f、23f、 53f' 73f的強度得以加強，能夠進一步抑制在透鏡架3、23、 53、73上產生的扭曲和歪斜等變形。 【圖式簡單說明】 第一圖是表示本發明實施形態一涉及的物鏡驅動裝置 的俯視圖。 第一圖是表示第一圖所示的物鏡驅動裝置的側面圖。 第二圖是表示第一圖的剖面X—X的刹面圖。 第四圖是第一圖所示的透鏡架的示意圖，其中（A)是俯 視圖，（B)是侧面圖。 第五圖是表示本發明實施形態一的變形例一涉及的透 鏡架的側面圖。 第六圖是表示本發明實施形態一的變形例二涉及的物 鏡驅動裝置的俯視圖。 第七圖是表示第六圖所示的物鏡驅動裝置的側面圖。 第八圖是第六圖所示的透鏡架的示意圖，其中（A)是俯 視圖，（B)是侧面圖。 第九圖是表示本發明實施形態一的變形例三涉及的物 鏡驅動裝置的俯視圖。 第十圖是表示本發明實施形態二涉及的物鏡駆動裝置 33 1318401 的俯視圖。 第十一圖是第十圖所示的透鏡架的示意圖， 側面圖’ (B)是㈧的從丫一丫方向觀察的正視圖 第十二圖是表示本發明實施形態二的變形例 鏡驅動裝置的俯視圖。 1中（A)是 涉及的物The mounts 53d, 53d, and the right side of the tenth drawing of the drive coils 65, 65 are opposed to the second drive magnets 64, 64 in the tangential direction. Further, the mounting position of the vertical drive coils 16 and 16 is not limited to the mounting portions 53d and 53d' and the right side surface of the tenth drawing of the focus drive coils 65 and 65, and the tracking drive coils 16 and 16 may be mounted. It is at a position corresponding to the attachment position of the drive coils 16 and 16 shown in Figs. 9(A) to 9(D). 'Coil drive coil 15 in the lens holder 53» In addition, in the present embodiment, as shown in Fig. 10, the outer peripheral side of the winding portions 53f and 53f is provided with a focus 29 1318401 tracking drive coils 16, 16 which are mounted on The mounting portion 53d, the coffee cup, and the right side surface of the focus drive coils 65, 65 in the tenth diagram. Further, the first drive magnets 63, 63 and the second drive magnets 64, 64 are provided to sandwich the right side portion of the through holes 53a, 53a by sandwiching the main body portion. Therefore, the magnetic path formed by the first drive magnets 63, 63 and the second drive magnets 64, 64 and the light 58 passes through the right side portion of the lens holder 53 through the through holes 53a, 53a. That is, the right side portion of the through hole 5 of the main body portion 53b, 533, substantially coincides with the drive center _ of the lens holder 53 driven by the drive mechanism 56. In the objective lens driving device 51 having the above configuration, when current is supplied to the focus drive coils 65, 65, the lens holder 53 is driven in the focus direction or the tilt direction. Further, in the objective lens driving device 51, when current is supplied to the tracking drive coils 16, 16, the lens holder 53 is driven in the tracking direction. (Main effect of the present embodiment) As described above, the objective lens driving device 51 of the present embodiment has the effect of the effect 2 of the above-described objective lens driving device 1. In other words, in the present embodiment, the driving force generated by the focus drive coil 65 on the coil winding portion 53f of the second winding is still on the focus drive coil wound on the other coil winding portion 53f. The difference in the generated driving force enables the lens holder 53 to be driven in the oblique direction. Therefore, it is not necessary to separately provide the drive coil for driving the tilt and the drive magnet, and the lens holder 53 can be driven in the oblique direction. Further, since the focus drive coils 65, 65 are wound around the thin coil winding portions 5 and 5, the rigidity of the focus drive coils 65, 65 can be ensured to ensure the rigidity of the 30 1318401 lens holder 53. (Modification of the second embodiment) The objective lens driving device 51 according to the second embodiment is a lens frame Μ: a wire (four) type objective lens driving device capable of moving in the focusing direction, the vertical direction, and the tilting direction by the support of the wire 4 . However, as shown in the twelfth figure, the objective lens drive may also be such that the lens holder 73 passes through the support of the hinge portion 7 4 made of elastic ^, and the leopard a takes # + , which is sufficient for the focus direction, The so-called hinge-supporting objective lens driving device 71 that moves in the tracking direction and in the oblique direction. As shown in Fig. 12, in the objective lens driving device 71, the lens holder 73: main portion 73b corresponds to the coil winding portion (3), the coil winding portions 73i, 73f, and the coil connecting portion, respectively. 7 buckled into two:: constituted. On both end sides of the main body portion 73b in the Achilles direction, the through holes 7 3 a and 7 3 a which penetrate the coil winding portions (3) and (3) in the direction of the knitting are slightly rectangular. Further, in the main body portion 73b, the H s of the two perforation holes 73a' 73a is +T1 a gamma... The direction (the bracket support member 77 formed by the right portion 82 in the twelfth figure is entering the collapse: In addition, the lens holder 73 and the holder supporting member 77 pass through a portion: the hinge portion 74 is formed, for example, a lens of the elastic lens 53 that cuts the rubber or the like and pulls the lens of the lens holder 73. The support portion 73c has the same configuration as the above-described transparent pattern: = Γ: 。. The same configuration as the tenth and the above-described second embodiment is denoted by the same symbol. The holding type = the over-engaging portion 74 supports the lens holder The hinge-supporting objective lens driving device 71 has the same effect as the mouthpiece. The objective lens driving device 51 31 1318401 is also provided. [Other Embodiments] Each of the above embodiments is an example of the most suitable embodiment of the present invention. However, the present invention is not limited thereto, and various modifications can be made without departing from the scope of the present invention. For example, in the above-described respective embodiments of the cancer, 'on the inner peripheral side of the perforations 3a, 23a, 53a, 73a, Provided with first driving magnets 1 3, 63 and a first magnet Supporting portions 8b, 28b, and 58b. However, the first magnet supporting portions 8b and 28b may be provided only on the inner peripheral side of the through holes 3a, 23a, 53a, and 73a without providing the first driving magnets 13 and 63'. In other words, the first magnet supporting portions 8b, 28b, and 58b in a state in which the first driving magnets 13 and 63 are not mounted may be disposed on the inner peripheral side of the through holes 3a, 23a, 53a, and 73a. The focus drive coils 15 and 65 are wound around the outer circumferences of the coil winding portions 3f, 23f, 53f, and 73f. Therefore, 'the illustration of the focus drive coils 15, 5 as shown in the first and tenth diagrams and the like. The one side of the right side and the second drive magnets 14 and 64 are disposed at a relatively long distance. Therefore, even when only the first magnet support portions 8fc), 28b, and 58b are disposed on the inner peripheral side of the focus drive coils 15, 65, In the lower case, the lens holders 3, 23, 53' 73 can be driven with a predetermined sensitivity. Further, when the first drive magnets 13 and 63 are not disposed on the inner peripheral side of the through holes 3a, 23a, 53a, and 73a, The relatively small through holes 3a, 23a, 53a, 73a can be formed. Therefore, the outer shape of the coil winding portions 3f, 23f, 53f, and 73f can be reduced in a state where the thickness of the coil winding portions 3f, 23f, 53f, and 73f is ensured when viewed from the focus direction. As a result, even if the size of the lens holders 3, 23, 53, 73 is not changed, the thickness of the focus drive coils 15, 65 when viewed from the focus direction 32 1318401 can be increased. That is to say, the number of turns of the focus drive coils 15 and 65 can be increased. Therefore, the lens holders 3, 23, 53, 73 can be driven with better sensitivity. Further, by increasing the number of turns of the focus drive coils 15, 5 (by increasing the thickness), the strengths of the coil winding portions 3f, 23f, 53f' 73f are enhanced, and can be further suppressed on the lens holders 3, 23, 53, 73 Distortions such as distortion and skew. BRIEF DESCRIPTION OF THE DRAWINGS The first drawing is a plan view showing an objective lens driving device according to a first embodiment of the present invention. The first figure is a side view showing the objective lens driving device shown in the first figure. The second figure is a brake surface view showing a section X-X of the first figure. The fourth figure is a schematic view of the lens holder shown in the first figure, wherein (A) is a top view and (B) is a side view. Fig. 5 is a side view showing a lens frame according to a first modification of the first embodiment of the present invention. Figure 6 is a plan view showing an objective lens driving device according to a second modification of the first embodiment of the present invention. Fig. 7 is a side view showing the objective lens driving device shown in Fig. 6. The eighth figure is a schematic view of the lens holder shown in Fig. 6, wherein (A) is a top view and (B) is a side view. Figure 9 is a plan view showing an objective lens driving device according to a third modification of the first embodiment of the present invention. Fig. 10 is a plan view showing an objective lens tilting device 33 1318401 according to the second embodiment of the present invention. 11 is a schematic view of the lens holder shown in FIG. 10, and FIG. 2(B) is a front view of the eighth embodiment as seen from the direction of the first direction. FIG. 12 is a mirror drive showing a modification of the second embodiment of the present invention. Top view of the device. 1 (A) is the matter involved

【主要元件符號說明】 1 、 21 、 51 、 71 物鏡驅動裝置 2 物鏡 3、23、53、73 透鏡架 3a 、 23a 、 53a 、 73a 貫穿孔 3b、23b、53b、73b 主體部 、23c ' 53c ' 73c 透鏡支持部 3d 、 23d 、 53d 安裝部 3e 通過孔 ' 23f ' 53f ' 73f 線圈捲繞部 39 線圈相接部 23i 軸承孔 23j 軸承部 24 支撐軸 25 固定側部件 27 軸固定部件 34 1318401 4 5、 55 6、 26、56 7 8、28、58 鋼絲 固定側部件 驅動機構 支架支持部件 車厄[Description of main component symbols] 1, 21, 51, 71 Objective lens driving device 2 Objective lens 3, 23, 53, 73 Lens holders 3a, 23a, 53a, 73a Through holes 3b, 23b, 53b, 73b Main body, 23c ' 53c ' 73c lens support portion 3d, 23d, 53d mounting portion 3e through hole '23f' 53f' 73f coil winding portion 39 coil contact portion 23i bearing hole 23j bearing portion 24 support shaft 25 fixed side member 27 shaft fixing member 34 1318401 4 5 , 55 6, 26, 56 7 8, 28, 58 wire fixed side parts drive mechanism bracket support parts

8a 、 28a ' 58a 8b、28b、58b 8c ' 28c ' 58c 10 底面部 第一磁鐵支持部 第二磁鐵支持部 中繼電路板 11 13、63 14、64 15 ' 65 印刷電路板 第一驅動磁鐵 第二驅動磁鐵（驅動磁鐵） 聚焦驅動線圈 16 跟蹤驅動線圈8a, 28a ' 58a 8b, 28b, 58b 8c ' 28c ' 58c 10 bottom surface first magnet support portion second magnet support portion relay circuit board 11 13 , 63 14 , 64 15 ' 65 printed circuit board first drive magnet Second drive magnet (drive magnet) focus drive coil 16 tracking drive coil

Fo 聚焦方向Fo focus direction

Tr Ti 跟蹤方向 傾斜方向Tr Ti tracking direction tilt direction

Ta 方向 35Ta direction 35

Claims (1)

1318401 十、申請專利範圍： 禋物鏡驅動裝 架、與使該透鏡架至少向輯方向 ^鏡的透鏡 動機構，其中， “焦方向驅動的驅 機構具有：用於使上述透鏡架至少向㈣方向以 向驅動的動的驅動磁鐵’用於使上述透鏡架向聚焦方 、' 圈’以及用於使上述透鏡架向跟縱方1318401 X. Patent application scope: The objective lens driving device and the lens moving mechanism for making the lens frame at least to the mirror direction, wherein the "focus direction driving drive mechanism has: for making the lens holder at least (four) direction a driving drive magnet for driving to the above-mentioned lens holder for focusing, 'circle' and for aligning the lens holder to the longitudinal direction 向驅動的跟蹤驅動線圈； 上述透鏡架具有：形成了在聚焦 上貝穿的貫穿孔和捲 繞上述聚焦驅動線圈的線圈捲繞部的 j 土肢。卩，及從該主 部向與聚焦方向和跟蹤方向垂直相 々日父的方向突出而形成 的、支持上述物鏡的透鏡支持部； 在該透鏡支持部的跟蹤方向兩側上， °又有上述驅動磁鐵； 上述跟蹤驅動線圈與上述驅動磁鐵， 你/、不焦方向和跟縱 方向垂直相交的方向上相對。 2.如申請專利範圍第]項所述的物鏡驅動裝置，其中， 所說的貫穿孔是貫穿上述線圈捲繞部而形纟，所說的聚焦 驅動線圈是沿著上述線圈捲繞部外周而捲繞的。 … 3如申明專利範圍第1項所述的物鏡驅動裝置，其中， 在所說的透鏡架上形成了兩個上述線圈捲繞部，利用捲繞 在一方的上述線圏捲繞部上的上述聚焦驅動線圈上產生的 驅動力、與捲繞在另一方的上述線圈捲繞部上的上述聚焦 驅動線圈上產生的驅動力之差，使上述透鏡架在傾斜方向 上驅動。 36 1318401 ‘ 4 ·如申請專利範圍第 在所說的透鏡架上形成了 在一方的上述線圈捲繞部 驅動力、與捲繞在另一方 驅動線圈上産生的驅動力 上驅動。 十一、圖式： 如次頁 2項所述的物鏡驅動裝置，其中， 兩個上述線圈捲繞部，利用捲繞 上的上述聚焦驅動線圈上產生的 的上述線圈捲繞部上的上述聚焦 之差’使上述透鏡架在傾斜方向The driving drive tracking coil; the lens holder having a through hole formed in a focus and a coil winding portion wound around the focus drive coil.卩, and a lens support portion that supports the objective lens formed from the main portion and protrudes in a direction perpendicular to the focus direction and the tracking direction in the direction of the sun; in the tracking direction of the lens support portion, ° a driving magnet; the tracking drive coil and the driving magnet are opposed to each other in a direction in which the in-focus direction and the vertical direction intersect perpendicularly. 2. The objective lens driving device according to claim 4, wherein the through hole is formed through the coil winding portion, and the focus drive coil is along the outer circumference of the coil winding portion. Winding. The objective lens driving device according to claim 1, wherein the two coil winding portions are formed on the lens holder, and the above-described coil winding portion is wound around one of the coil winding portions. The difference between the driving force generated on the focus drive coil and the driving force generated on the focus drive coil wound around the other coil winding portion causes the lens holder to be driven in the oblique direction. 36 1318401 ‘4. In the lens holder described above, the driving force of one of the coil winding portions and the driving force generated by winding on the other driving coil are formed on the lens holder. 11. The objective lens driving device according to Item 2, wherein the two coil winding portions are formed by the focus on the coil winding portion of the focus drive coil wound on the winding The difference ' makes the above lens holder in the oblique direction 3737
TW095131231A 2005-09-07 2006-08-25 Objective lens driving device TW200713250A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005258873A JP2007073132A (en) 2005-09-07 2005-09-07 Objective lens driving device

Publications (2)

Publication Number Publication Date
TW200713250A TW200713250A (en) 2007-04-01
TWI318401B true TWI318401B (en) 2009-12-11

Family

ID=37858930

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095131231A TW200713250A (en) 2005-09-07 2006-08-25 Objective lens driving device

Country Status (4)

Country Link
JP (1) JP2007073132A (en)
KR (1) KR100804630B1 (en)
CN (1) CN100449619C (en)
TW (1) TW200713250A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5797571B2 (en) * 2012-01-20 2015-10-21 日立コンシューマエレクトロニクス株式会社 Optical pickup

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3137255B2 (en) * 1995-07-21 2001-02-19 船井電機株式会社 Optical pickup device
JPH11191231A (en) * 1997-12-26 1999-07-13 Nhk Spring Co Ltd Objective lens actuator
JP2000020984A (en) * 1998-07-03 2000-01-21 Toshiba Corp Optical head device, and disk recording or reproducing apparatus
EP1148483B1 (en) * 2000-03-29 2006-05-10 Matsushita Electric Industrial Co., Ltd. Optical-component-integrated optical pickup
CN1153193C (en) * 2002-01-29 2004-06-09 清华大学 Multi-dimension object lens driver for optical head of optical disk
KR20030085725A (en) * 2002-05-01 2003-11-07 삼성전자주식회사 Objective lens driving apparatus for optical pickup
KR100472477B1 (en) * 2002-09-02 2005-03-10 삼성전자주식회사 Optical pickup actuator and optical pickup apparatus employing the same and optical disk drive apparatus employing the same
KR100522232B1 (en) * 2003-12-24 2005-10-17 엘지전자 주식회사 Optical pick-up actuator of slim type

Also Published As

Publication number Publication date
KR100804630B1 (en) 2008-02-20
CN1929003A (en) 2007-03-14
TW200713250A (en) 2007-04-01
JP2007073132A (en) 2007-03-22
CN100449619C (en) 2009-01-07
KR20070028215A (en) 2007-03-12

Similar Documents

Publication Publication Date Title
TW589633B (en) Objective lens drive device of optical pickup
TWI318401B (en)
US7602565B2 (en) Optical pickup
JP4521385B2 (en) Objective lens drive
TWI336073B (en) Optical pick-up head and electro-magnetic actuator thereof
JP4974850B2 (en) Objective lens driving device and optical pickup device
TWI314732B (en)
JP5152109B2 (en) Objective lens actuator and optical pickup including the same
JPWO2006043360A1 (en) Objective lens drive
JP4508134B2 (en) Objective lens actuator and optical pickup device having the same
JP3415445B2 (en) Manufacturing method of actuator device for optical pickup
US20040107428A1 (en) Optical pickup apparatus
JPH08129767A (en) Actuator of optical head
JP2001014696A (en) Objective lens drive assembly
JP2009283072A (en) Actuator
JP3570838B2 (en) Objective lens drive
JP3983149B2 (en) Optical pickup objective lens drive device
JP2003157558A (en) Objective lens driving device, method for manufacturing objective lens driving device and optical disk driving device
JP2007234119A (en) Optical pickup and method of driving same
JP2006260688A (en) Objective lens driver, optical pickup device and optical disk driver
JPH08180439A (en) Biaxial actuator
JP2005071547A (en) Objective lens driving device and optical pickup
JP2008186587A (en) Objective lens driving device
JPH09147386A (en) Biaxial actuator
JP2007172773A (en) Optical pickup actuator

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees