TWI685708B - Optical unit - Google Patents

Optical unit Download PDF

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Publication number
TWI685708B
TWI685708B TW107138344A TW107138344A TWI685708B TW I685708 B TWI685708 B TW I685708B TW 107138344 A TW107138344 A TW 107138344A TW 107138344 A TW107138344 A TW 107138344A TW I685708 B TWI685708 B TW I685708B
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optical unit
subject
groove portion
cover member
end surface
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TW107138344A
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TW201918781A (en
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楊軍喜
須江猛
南澤伸司
五明正人
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大陸商日本電產三協電子(東莞)有限公司
日商日本電產三協股份有限公司
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/20—Light-tight connections for movable optical elements

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Adjustment Of Camera Lenses (AREA)
  • Studio Devices (AREA)
  • Lens Barrels (AREA)
  • Camera Bodies And Camera Details Or Accessories (AREA)
  • Structure And Mechanism Of Cameras (AREA)

Abstract

本發明提供一種光學單元，容易進行機器設計，另外，也可以縮短設計時間，並且作為製品的處理性已提升。光學單元(10)包括固定體(15)，所述固定體(15)包含筒狀外殼(12)、被攝體側外殼(13)、及反被攝體側外殼(14)。在固定體(15)中，具備透明的蓋構件(20)，所述蓋構件(20)與開口部(13b)的周圍的被攝體側端面(13a)抵接，來堵塞開口部(13b)的四周。藉由接著劑等，將抵接在被攝體側端面(13a)上的固定面(20a)與被攝體側端面(13a)固著，由此將蓋構件(20)固定在固定體(15)上。蓋構件(20)包含玻璃、或丙烯酸樹脂等塑料材料、或將玻璃與塑料結合而成的單元製品等。在與被攝體側為相反側的側面上，形成有朝被攝體側凹陷的凹部(20b)。The invention provides an optical unit, which is easy to design the machine, and can also shorten the design time, and the handling as a product has been improved. The optical unit (10) includes a fixed body (15) including a cylindrical casing (12), a subject-side casing (13), and a counter-subject-side casing (14). The fixed body (15) is provided with a transparent cover member (20) that contacts the object-side end surface (13a) around the opening (13b) to block the opening (13b) ). Fixing the fixing surface (20a) contacting the object-side end surface (13a) and the object-side end surface (13a) with an adhesive or the like, thereby fixing the cover member (20) to the fixing body (20) 15) On. The cover member (20) includes a plastic material such as glass or acrylic resin, or a unit product formed by combining glass and plastic. On the side surface opposite to the object side, a concave portion (20b) recessed toward the object side is formed.

Description

光學單元Optical unit

本發明是有關於一種光學單元，具備固定體，所述固定體自由可動地收容具備光學模組的可動體。The present invention relates to an optical unit including a fixed body that movably houses a movable body provided with an optical module.

先前，作為此種光學單元，例如有專利文獻1中所公開的圖1中所示的帶振動校正功能的光學單元100。此光學單元100用於帶相機的手機等的光學機器1000中，且以由光學機器1000的機器本體（底架）1100支撐的狀態而搭載在光學機器1000中。在所述光學單元100中，若攝影時在光學機器1000中產生手抖等的振動，則在攝影圖像中產生紊亂。因此，在光學單元100中，具備經由光學元件而取入被攝體光的光學模組的可動體120，是可擺動地支撐在固定體110內。光學機器1000中產生的手抖等的振動，由搭載在光學單元100中的振動檢測傳感器來檢測，且藉由振動校正用驅動機構，使可動體朝消除此振動的方向擺動，而使攝影圖像中不產生紊亂。Previously, as such an optical unit, for example, there is an optical unit 100 with a vibration correction function shown in FIG. 1 disclosed in Patent Document 1. This optical unit 100 is used in an optical device 1000 such as a mobile phone with a camera, and is mounted on the optical device 1000 in a state supported by a device body (chassis) 1100 of the optical device 1000. In the optical unit 100, if vibrations such as hand shake are generated in the optical device 1000 at the time of photographing, disturbances occur in the photographed image. Therefore, in the optical unit 100, the movable body 120 including the optical module that takes in the subject light through the optical element is swingably supported in the fixed body 110. Vibration such as hand shake generated in the optical device 1000 is detected by the vibration detection sensor mounted in the optical unit 100, and the drive mechanism for vibration correction causes the movable body to swing in the direction to eliminate the vibration to make the photograph There is no disorder in the image.

在固定體110的前表面上，取入被攝體光的開口部110a開口，在與此開口部110a相向的機器本體1100的相向面1100a上，設置使被攝體光透過開口部110a的未圖示的蓋玻璃（cover glass）。光學單元100經由此蓋玻璃而取入被攝體光，並且藉由此蓋玻璃而防止灰塵或異物的侵入來進行保護。On the front surface of the fixed body 110, an opening 110a for taking in subject light is opened, and an opposing surface 1100a of the machine body 1100 facing the opening 110a is provided with an untransmitted part for allowing the subject light to pass through the opening 110a The illustrated cover glass (cover glass). The optical unit 100 takes in the subject light through this cover glass and protects it by preventing the intrusion of dust or foreign objects by the cover glass.

[現有技術文獻] [專利文獻] [專利文獻1] 日本專利特開2012-211995號公報[Prior Art Literature] [Patent Literature] [Patent Literature 1] Japanese Patent Laid-Open No. 2012-211995

[發明所要解決的問題] 但是，所述現有的光學單元100將成為防塵對策的蓋玻璃設置在光學機器1000的機器本體1100中，因此，固定體110的開口部110a與蓋玻璃的相對位置關係並非如設計般固定而產生干涉，另外，設計耗費時間。另外，在光學單元100單體中未實施防塵對策，因此，亦存在難以作為製品來處理的情況。[Problems to be Solved by the Invention] However, in the conventional optical unit 100 described above, a cover glass serving as a dust-proof measure is provided in the device body 1100 of the optical device 1000. Therefore, the relative positional relationship between the opening 110a of the fixed body 110 and the cover glass It is not as fixed as the design and interferes. In addition, the design takes time. In addition, since the anti-dust measures are not implemented in the optical unit 100 alone, it may be difficult to handle as a product.

[解決問題的技術手段] 本發明是為了解決此種課題而成，光學單元包括：可動體，具備經由光學元件而取入被攝體光的光學模組；以及固定體，以所述可動體能自由可動的方式***述可動體。在所述光學單元中，固定體在被攝體側端面上形成有開口部，所述開口部使所述被攝體光朝光學元件中射入，且光學單元包括透明的蓋構件，所述蓋構件與所述開口部的周圍的所述被攝體側端面抵接，來堵塞開口部的四周。[Technical Means for Solving the Problem] The present invention is made to solve such a problem. The optical unit includes: a movable body including an optical module that takes in subject light through an optical element; and a fixed body that uses the movable body energy The movable body is housed in a freely movable manner. In the optical unit, the fixed body has an opening formed on the end surface of the object side, the opening allows the object light to enter the optical element, and the optical unit includes a transparent cover member, The cover member abuts on the object-side end surface around the opening to block the periphery of the opening.

根據本結構，在光學單元自身中設置有堵塞固定體的開口部的四周的蓋構件，在光學單元單體中可防止灰塵或異物從開口部朝光學單元內部的侵入。因此，在設計安裝光學單元的機器時，無需如之前般考慮光學單元與機器的相對位置關係，而容易進行機器設計，另外，也可以縮短設計時間。另外，由於在光學單元單體中實施防塵對策，因此光學單元作為製品的處理性提升。According to this configuration, the optical unit itself is provided with a cover member that blocks around the opening of the fixed body, and the intrusion of dust or foreign matter into the optical unit from the opening can be prevented in the optical unit alone. Therefore, when designing a machine with an optical unit installed, it is not necessary to consider the relative positional relationship between the optical unit and the machine as before, and the machine design is easy, and the design time can also be shortened. In addition, since dust prevention measures are implemented in the optical unit alone, the handling of the optical unit as a product is improved.

另外，在本發明中，在固定體的被攝體側端面或所述蓋構件的與被攝體側端面抵接的蓋構件的固定面的至少任一個上，形成有環狀的第一槽部，當固定面已與被攝體側端面抵接時，所述第一槽部包圍開口部的周圍，且所述蓋構件藉由第一槽部中所包括的接著構件而固定在固定體上。In addition, in the present invention, an annular first groove is formed on at least one of the object-side end surface of the fixed body or the fixing surface of the cover member in contact with the object-side end surface of the cover member Part, when the fixing surface has been in contact with the object-side end surface, the first groove part surrounds the periphery of the opening part, and the cover member is fixed to the fixing body by the adhesive member included in the first groove part on.

根據本結構，藉由第一槽部中所包括的接著構件，來將蓋構件確實地固定在固定體上，而且，固定成包圍開口部的周圍的環狀，因此，即便當在蓋構件與固定體之間略微存在間隙時，也可以確實地防止灰塵或異物朝開口部中的侵入。According to this structure, the cover member is securely fixed to the fixed body by the adhesive member included in the first groove, and is fixed in a ring shape surrounding the opening. Therefore, even when the cover member and Even if there is a slight gap between the fixing bodies, it is possible to surely prevent the intrusion of dust or foreign matter into the opening.

另外，在本發明中，第一槽部的內側第一槽部與外側第一槽部在徑向上並排地形成在開口部的外周圍，且在離開口部的外周圍近的內側的內側第一槽部中包括所述接著構件，在離開口部的外周圍遠的外側的外側第一槽部中包括密封構件。In addition, in the present invention, the inner first groove portion and the outer first groove portion of the first groove portion are formed side by side on the outer periphery of the opening in the radial direction, and on the inner side of the inner portion near the outer periphery of the mouth portion The connecting member is included in a groove portion, and the sealing member is included in the outer first groove portion farther from the outer periphery of the mouth portion.

根據本結構，藉由在內側第一槽部中包括接著構件，而進行蓋構件朝固定體上的固定，藉由在外側第一槽部中包括密封構件，而實施對於開口部的防塵對策及防水對策，並且可防止異物對於接著構件的附著。因此，光學單元的防塵性及防水性提升。According to this configuration, the cover member is fixed to the fixed body by including the adhesive member in the inner first groove portion, and the dust prevention measures for the opening portion are implemented by including the sealing member in the outer first groove portion. Measures against water and prevent the attachment of foreign objects to the following components. Therefore, the dustproofness and waterproofness of the optical unit are improved.

另外，在本發明中，密封構件由剖面形狀呈圓形形狀的彈性構件形成，且外側第一槽部的剖面形狀呈具有比彈性構件的剖面的曲率半徑大的曲率半徑的曲面形狀。In addition, in the present invention, the sealing member is formed of an elastic member having a circular cross-sectional shape, and the cross-sectional shape of the outer first groove portion has a curved shape having a larger radius of curvature than the cross-sectional radius of the elastic member.

根據本結構，藉由密封構件由彈性構件形成，而密封性更高地將蓋構件及固定體間密封。另外，藉由外側第一槽部的剖面形狀呈具有比彈性構件的圓形剖面的曲率半徑大的曲率半徑的曲面形狀，當密封構件夾在固定體的被攝體側端面與蓋構件的固定面之間而壓扁時，壓扁後朝側方膨出的密封構件沿著外側第一槽部的曲率半徑大的曲面部的曲面朝側方擴展。因此，密封構件與外側第一槽部的密接性得到保持，蓋構件及固定體間確實地密接並得到固定。According to this structure, the sealing member is formed of an elastic member, and the sealing property is higher, and the cover member and the fixed body are sealed. In addition, since the cross-sectional shape of the outer first groove portion has a curved shape with a radius of curvature larger than the radius of curvature of the circular cross-section of the elastic member, when the sealing member is sandwiched between the end surface of the fixed body and the cover member When flattening between the surfaces, the sealing member that swells laterally after flattening expands laterally along the curved surface of the curved surface portion having a large radius of curvature of the first outer groove portion. Therefore, the adhesiveness between the sealing member and the first outer groove portion is maintained, and the cover member and the fixed body are firmly in contact with each other and fixed.

另外，在本發明中，在固定體或蓋構件的至少一個中的朝向被攝體的所述被攝體側端面上，在將光學元件的光軸作為中心的圓周方向上形成有環狀的第二槽部，且所述第二槽部中所包括的密封構件與供安裝所述光學單元的機器的構成構件上的、將被攝體光取入口的周圍所包圍的反被攝體側端面相抵接，其中，所述被攝體光取入口形成在所述構成構件上。In addition, in the present invention, on at least one of the fixed body or the cover member, the object-side end surface facing the object is formed with a ring shape in the circumferential direction centering on the optical axis of the optical element A second groove portion, and a sealing member included in the second groove portion and the anti-subject side on the constituent member of the machine for mounting the optical unit, which surrounds the periphery of the subject light inlet The end faces are in contact with each other, wherein the object light inlet is formed on the constituent member.

根據本結構，藉由形成在固定體或蓋構件的至少一個的被攝體側端面上的第二槽部中所包括的密封構件與包圍被攝體光取入口的周圍的機器構成構件的反被攝體側端面抵接，而防止灰塵或異物、水滴等從所述抵接部朝光學單元側侵入。因此，光學單元的防塵性及防水性提升。According to this configuration, the sealing member included in the second groove formed on the object-side end surface of at least one of the fixed body or the cover member and the machine constituent member surrounding the periphery of the light inlet of the object The end surface on the object side abuts to prevent intrusion of dust, foreign objects, water droplets, etc. from the abutment portion toward the optical unit side. Therefore, the dustproofness and waterproofness of the optical unit are improved.

另外，在本發明中，密封構件由剖面形狀呈圓形形狀的彈性構件形成，且第二槽部的剖面形狀呈具有比彈性構件的剖面的曲率半徑大的曲率半徑的曲面形狀。In addition, in the present invention, the sealing member is formed of an elastic member having a circular cross-sectional shape, and the cross-sectional shape of the second groove portion has a curved shape having a larger radius of curvature than the cross-sectional radius of the elastic member.

根據本結構，藉由密封構件由彈性構件形成，而密封性更高地將機器的構成構件與固定體或蓋構件之間密封。另外，藉由第二槽部的剖面形狀呈具有比彈性構件的圓形剖面的曲率半徑大的曲率半徑的曲面形狀，當密封構件夾在機器構成構件的端面與固定體或蓋構件的被攝體側端面之間而壓扁時，壓扁後朝側方膨出的密封構件沿著第二槽部的曲率半徑大的曲面部的曲面朝側方擴展。因此，密封構件與第二槽部的密接性得到保持，機器的構成構件與固定體或蓋構件之間確實地密接並得到固定。According to this configuration, the sealing member is formed of an elastic member, and the sealing between the constituent member of the machine and the fixed body or the lid member is improved with higher sealing performance. In addition, since the cross-sectional shape of the second groove portion is a curved shape having a radius of curvature larger than the radius of curvature of the circular cross-section of the elastic member, when the sealing member is sandwiched between the end surface of the machine constituent member and the fixed body or cover member, When flattened between the body-side end surfaces, the sealing member that swells laterally after being flattened spreads laterally along the curved surface of the curved surface portion having a large radius of curvature of the second groove portion. Therefore, the adhesiveness between the sealing member and the second groove portion is maintained, and the component members of the machine are securely adhered to and fixed to the fixed body or the cover member.

另外，在本發明中，從光學元件的光軸方向觀察，第二槽部形成在開口部的外側。In addition, in the present invention, the second groove portion is formed outside the opening as viewed from the optical axis direction of the optical element.

根據本結構，從機器的構成構件朝蓋構件的一側施加的負荷，經由第二槽部中所包括的密封構件及形成第二槽部的開口部周圍的蓋構件而施加，並由第一槽部中所包括的密封構件及包圍開口部的周圍的固定體的被攝體側端面承受。即，從機器的構成構件朝蓋構件的一側施加的負荷，經由開口部周圍的蓋構件而由開口部周圍的固定體的被攝體側端面承受，並藉由包圍開口部來設置的第一槽部及第二槽部中分別包括的密封構件壓扁而得到緩衝。因此，抑制因從機器的構成構件朝蓋構件中施加的負荷而導致應力施加至包含光學元件的視角範圍的光學元件的光軸所穿過的蓋構件的中心周邊區域中，並防止包含光學元件的視角範圍的區域的蓋構件歪曲。因此，可防止透過蓋構件的被攝體光因蓋構件的歪曲而折射、或由蓋構件的破損所引起的機器的故障。According to this configuration, the load applied from the component member of the machine toward the side of the cover member is applied through the sealing member included in the second groove portion and the cover member around the opening portion forming the second groove portion, and is applied by the first The sealing member included in the groove and the object-side end face of the fixed body surrounding the opening are received. That is, the load applied from the structural member of the device toward the side of the cover member is received by the object-side end surface of the fixed body around the opening through the cover member around the opening, and is provided by surrounding the opening The sealing members included in the one groove portion and the second groove portion are crushed to be cushioned. Therefore, the stress applied to the central peripheral region of the cover member through which the optical axis of the optical element including the viewing angle range of the optical element is caused due to the load applied from the structural member of the machine toward the cover member is suppressed, and the inclusion of the optical element is prevented The cover member of the region of the viewing angle range is distorted. Therefore, it is possible to prevent the object light transmitted through the cover member from being refracted due to the distortion of the cover member or the malfunction of the machine caused by the damage of the cover member.

另外，在本發明中，蓋構件在反被攝體側的面上，形成有朝被攝體側凹陷的凹部。In addition, in the present invention, the cover member has a concave portion recessed toward the object side on the surface on the side opposite to the object side.

雖然將可動體在固定體中的移動範圍設定成可動體不接觸蓋構件的範圍，但即便可動體因施加至光學單元中的衝擊等而朝蓋構件側移動，根據本結構，在蓋構件中朝被攝體側凹陷而形成的凹部也成為緩衝空間，而可避免可動體與蓋構件的干涉。Although the range of movement of the movable body in the fixed body is set such that the movable body does not contact the cover member, even if the movable body moves toward the cover member side due to an impact applied to the optical unit or the like, according to this structure, in the cover member The concave portion formed by being recessed toward the subject side also serves as a buffer space, and interference between the movable body and the cover member can be avoided.

另外，在本發明中，更包括：支撐機構，以所述可動體能相對於固定體自由擺動的方式支撐可動體；以及驅動機構，使經由所述支撐機構而支撐在固定體上的可動體擺動。In addition, the present invention further includes: a support mechanism that supports the movable body such that the movable body can swing freely relative to the fixed body; and a drive mechanism that swings the movable body supported on the fixed body via the support mechanism .

根據本結構，即便對光學單元施加振動，也藉由驅動機構朝抵消振動的方向驅動經由支撐機構而支撐在固定體上的可動體，由此防止在攝影圖像中產生紊亂。因此，可提供一種不僅包括振動校正功能，而且具備防塵性能或防水性能的光學單元。According to this configuration, even if vibration is applied to the optical unit, the movable body supported on the fixed body via the support mechanism is driven by the drive mechanism in a direction to cancel the vibration, thereby preventing disturbance in the captured image. Therefore, it is possible to provide an optical unit that not only includes the vibration correction function, but also has dustproof performance or waterproof performance.

[發明的效果] 根據本發明，可提供一種容易進行機器設計，另外，也可以縮短設計時間，並且作為製品的處理性已提升的光學單元。[Effects of the Invention] According to the present invention, it is possible to provide an optical unit that is easy to design the machine, and also can shorten the design time, and has improved the handleability of the product.

繼而，對將本發明的光學單元應用於帶振動校正功能的光學單元的一實施方式進行說明。Next, an embodiment in which the optical unit of the present invention is applied to an optical unit with a vibration correction function will be described.

（整體結構） 圖2是本發明的一實施方式的帶振動校正功能的光學單元10的外觀立體圖，圖3是從反被攝體側觀察的光學單元10的分解立體圖，圖4是從被攝體側觀察的光學單元10的分解立體圖。另外，圖5A是光學單元10的平面圖，圖5B是圖5A的A-A虛線的箭頭方向的視圖。(Overall Structure) FIG. 2 is a perspective view of the appearance of the optical unit with vibration correction function 10 according to an embodiment of the present invention, FIG. 3 is an exploded perspective view of the optical unit 10 viewed from the anti-subject side, and FIG. 4 is a view from the subject An exploded perspective view of the optical unit 10 viewed from the side. In addition, FIG. 5A is a plan view of the optical unit 10, and FIG. 5B is a view in the arrow direction of the dotted line A-A of FIG. 5A.

在本說明書中，XYZ的三軸是相互正交的方向，以+X來表示X軸方向的一側，以-X來表示X軸方向的另一側，以+Y來表示Y軸方向的一側，以-Y來表示Y軸方向的另一側，以+Z來表示Z軸方向的一側，以-Z來表示Z軸方向的另一側。Z軸方向是在光學單元10的後述的可動體16未擺動的狀態下，沿著搭載在可動體16中的光學元件的光軸的方向。另外，+Z方向是光軸方向的物體側（被攝體側），-Z方向是光軸方向的像側（反被攝體側）。In this specification, the three axes of XYZ are mutually orthogonal directions, with +X to indicate one side in the X-axis direction, -X to indicate the other side in the X-axis direction, and +Y to indicate the Y-axis direction On one side, -Y is used to indicate the other side in the Y-axis direction, +Z is used to indicate one side in the Z-axis direction, and -Z is used to indicate the other side in the Z-axis direction. The Z-axis direction is a direction along the optical axis of the optical element mounted on the movable body 16 in a state where the movable body 16 described later of the optical unit 10 is not swinging. In addition, the +Z direction is the object side (subject side) in the optical axis direction, and the -Z direction is the image side (reverse subject side) in the optical axis direction.

光學單元10包括固定體15，所述固定體15包含：筒狀外殼12、被攝體側外殼13、以及反被攝體側外殼14。筒狀外殼12呈大致八邊形的外形，由磁性材料形成。被攝體側外殼13相對於此筒狀外殼12從+Z方向的一側（被攝體側）來組裝，反被攝體側外殼14相對於筒狀外殼12從-Z方向的一側（反被攝體側）來組裝。被攝體側外殼13及反被攝體側外殼14由樹脂材料形成。在反被攝體側外殼14上，從反被攝體側進而組裝底板11。The optical unit 10 includes a fixed body 15 including a cylindrical casing 12, a subject-side casing 13, and a counter-subject-side casing 14. The cylindrical casing 12 has a substantially octagonal shape and is formed of a magnetic material. The subject-side housing 13 is assembled with respect to the cylindrical housing 12 from the +Z direction side (subject side), and the anti-subject-side housing 14 with respect to the cylindrical housing 12 from the -Z direction side ( Anti-subject side) to assemble. The subject-side casing 13 and the counter-subject-side casing 14 are formed of a resin material. On the anti-subject side case 14, the bottom plate 11 is assembled from the anti-subject side.

在固定體15的內部，可動體16由支撐體17支撐，而自由可動地被收容。在被攝體側外殼13的被攝體側端面13a上，使被攝體光朝作為光學元件的透鏡18中射入的開口部13b環繞透鏡18的光軸開口而形成。由鏡筒構件19保持的透鏡18出現在此開口部13b中。透鏡18及鏡筒構件19構成經由透鏡18而取入被攝體光的光學模組，光學模組包含在可動體16中。另外，從透鏡18朝+Z方向的被攝體側擴大成四角錐狀的線，表示透鏡18的視角18a。Inside the fixed body 15, the movable body 16 is supported by the support body 17 and is movably accommodated. The subject-side end surface 13 a of the subject-side housing 13 is formed so as to surround the optical axis of the lens 18 by opening the subject portion 13 b toward the opening portion 13 b that enters the lens 18 as an optical element. The lens 18 held by the lens barrel member 19 appears in this opening 13b. The lens 18 and the lens barrel member 19 constitute an optical module that takes in subject light through the lens 18, and the optical module is included in the movable body 16. In addition, a line that expands from the lens 18 toward the subject side in the +Z direction into a quadrangular pyramid shape represents the angle of view 18 a of the lens 18.

另外，在固定體15中，具備透明的蓋構件20，所述蓋構件20與開口部13b的周圍的被攝體側端面13a抵接、並且無間隙地堵塞開口部13b的四周。藉由接著劑等、或者藉由***或壓入等，來將抵接在被攝體側端面13a上的固定面20a與被攝體側端面13進行固著，由此將蓋構件20固定在固定體15上。蓋構件20包含玻璃、或丙烯酸樹脂等的塑料材料、或將玻璃與塑料結合而成的單元製品等，在反被攝體側的面上形成有朝被攝體側凹陷的凹部20b。在本實施方式中，如圖5B所示，凹部20b形成為從固定面20a下陷一段的階梯狀，但也可以形成為隨著從凹部20b的周圍前往蓋構件20的中心，朝被攝體方向逐漸地凹陷的球面狀等。In addition, the fixed body 15 is provided with a transparent cover member 20 that abuts on the object-side end surface 13a around the opening 13b and closes the periphery of the opening 13b without a gap. The fixing surface 20a abutting on the object-side end surface 13a and the object-side end surface 13 are fixed by an adhesive or the like or by insertion or press-fitting, thereby fixing the cover member 20 at固定体15上。 Fixed body 15. The cover member 20 includes a plastic material such as glass or acrylic resin, or a unit product in which glass and plastic are combined, and a concave portion 20 b recessed toward the subject side is formed on the surface on the side opposite to the subject side. In the present embodiment, as shown in FIG. 5B, the concave portion 20b is formed in a stepped shape recessed from the fixed surface 20a, but it may be formed in a direction toward the subject as it goes from the periphery of the concave portion 20b to the center of the cover member 20 Spherical shape gradually dented, etc.

（旋轉支撐機構・滾動驅動機構） 圖6是將由支撐體17及反被攝體側外殼14支撐的各零件分解，並從反被攝體側觀察的分解立體圖。圖7是並從被攝體側觀察的分解立體圖。(Rotation support mechanism and rolling drive mechanism) FIG. 6 is an exploded perspective view of the components supported by the support body 17 and the anti-subject-side housing 14 exploded and viewed from the anti-subject side. 7 is an exploded perspective view viewed from the object side.

支撐體17在反被攝體側設置有底板構件17b，軸25的頭部如圖5B所示般固定在底板構件17b的-Z側。軸25經由滾珠軸承22而安裝在反被攝體側外殼14上。滾珠軸承22是在外圈（outer ring）與內圈（inner ring）之間存在多個滾珠來構成，外圈固定在反被攝體側外殼14上，內圈固定在軸25上。由固定此軸25的底板構件17b支撐的支撐體17，藉由滾珠軸承22而自由旋轉地支撐在反被攝體側外殼14上。The support 17 is provided with a bottom plate member 17b on the anti-subject side, and the head of the shaft 25 is fixed to the -Z side of the bottom plate member 17b as shown in FIG. 5B. The shaft 25 is mounted on the anti-subject side housing 14 via a ball bearing 22. The ball bearing 22 is composed of a plurality of balls between an outer ring and an inner ring. The outer ring is fixed to the anti-subject-side housing 14 and the inner ring is fixed to the shaft 25. The support body 17 supported by the bottom plate member 17b that fixes the shaft 25 is rotatably supported on the anti-subject side housing 14 by a ball bearing 22.

在安裝於反被攝體側外殼14的底面上的磁軛（yoke）21與底板11之間，波形墊圈（wave washer）38疊加在墊圈37上而設置在軸25的四周。藉由此波形墊圈38而朝+Z方向對內圈施力。因此，也朝+Z方向即被攝體側對固定在軸25上的支撐體17施力。支撐體17的被攝體側的端面17a與被攝體側外殼13之間空開規定的間隙。因此，支撐體17一面被朝被攝體側施力並維持其姿勢，一面相對於反被攝體側外殼14進行旋轉。滾珠軸承22、墊圈37及波形墊圈38構成旋轉支撐機構，可環繞Z軸旋轉地對支撐體17進行支撐。Between the yoke 21 mounted on the bottom surface of the anti-subject side housing 14 and the bottom plate 11, a wave washer 38 is superposed on the washer 37 and is provided around the shaft 25. The wave washer 38 urges the inner ring in the +Z direction. Therefore, the support 17 fixed to the shaft 25 is also urged toward the +Z direction, that is, the subject side. A predetermined gap is formed between the object-side end surface 17a of the support 17 and the object-side housing 13. Therefore, the support 17 rotates relative to the anti-subject side housing 14 while being urged toward the subject side and maintaining its posture. The ball bearing 22, the washer 37, and the wave washer 38 constitute a rotation support mechanism, and rotatably supports the support body 17 around the Z axis.

在反被攝體側外殼14的+Z側的軸25的周圍，設置一對滾動驅動用線圈23。另外，在滾動驅動用線圈23的-Z側的磁軛21中，包括與滾動驅動用線圈23相向的一對滾動驅動用磁鐵24。滾動驅動用線圈23及滾動驅動用磁鐵24構成滾動驅動機構。A pair of rolling drive coils 23 are provided around the +Z side shaft 25 of the anti-subject-side housing 14. In addition, the yoke 21 on the −Z side of the rolling drive coil 23 includes a pair of rolling drive magnets 24 facing the rolling drive coil 23. The rolling drive coil 23 and the rolling drive magnet 24 constitute a rolling drive mechanism.

（擺動支撐機構・擺動驅動機構） 另外，在可動體16與支撐體17之間，環繞與Z軸方向正交、且相對於X軸方向及Y軸方向傾斜45度的第1軸線R1及第2軸線R2，將可動體16自由擺動地支撐在支撐體17上的常平架機構（gimbal mechanism）作為擺動支撐機構來構成。此擺動支撐機構包括：設置在可動體16的外周圍中的第1軸線R1上的對角位置上的兩個部位的第1擺動支撐部26、設置在支撐體17的內周圍中的第2軸線R2上的對角位置上的兩個部位的第2擺動支撐部27、及由第1擺動支撐部26及第2擺動支撐部27支撐的包圍可動體16的外周圍的可動框28。在此可動框28的周圍的四個部位上固定有球體29，這些球體29與分別由第1擺動支撐部26及第2擺動支撐部27保持的接點彈簧30進行點接觸。接點彈簧30為板狀彈簧，由第1擺動支撐部26支撐的接點彈簧30可在第1軸線R1方向上彈性變形，由第2擺動支撐部27支撐的接點彈簧30可在第2軸線R2方向上彈性變形。因此，可動框28以可環繞第1軸線R1及第2軸線R2擺動的狀態得到支撐。(Swing support mechanism/swing drive mechanism) In addition, between the movable body 16 and the support body 17, the first axis R1 and the first axis orthogonal to the Z-axis direction and inclined by 45 degrees with respect to the X-axis direction and the Y-axis direction are encircled. The 2-axis R2 is constituted by a gimbal mechanism that swingably supports the movable body 16 on the support body 17 as a swing support mechanism. This swing support mechanism includes: a first swing support portion 26 provided at two positions at a diagonal position on the first axis R1 in the outer periphery of the movable body 16, and a second swing support portion 26 provided in the inner periphery of the support body 17 The second swing support portion 27 at two positions in the diagonal position on the axis R2 and the movable frame 28 surrounding the outer periphery of the movable body 16 supported by the first swing support portion 26 and the second swing support portion 27. At four locations around the movable frame 28, spheres 29 are fixed. These spheres 29 are in point contact with the contact springs 30 held by the first swing support 26 and the second swing support 27, respectively. The contact spring 30 is a plate spring, and the contact spring 30 supported by the first swing support portion 26 can be elastically deformed in the direction of the first axis R1, and the contact spring 30 supported by the second swing support portion 27 can be Elastic deformation in the direction of the axis R2. Therefore, the movable frame 28 is supported in a state capable of swinging around the first axis R1 and the second axis R2.

在可動體16的X軸方向的兩側部及Y軸方向的兩側部中分別安裝有擺動驅動用線圈31。另外，在筒狀外殼12的在X軸方向上相向的兩內壁及在Y軸方向上相向的兩內壁上，如圖3及圖4所示，與各擺動驅動用線圈31相向而分別安裝有擺動驅動用磁鐵32。擺動驅動用線圈31及擺動驅動用磁鐵32構成擺動驅動機構。另外，擺動驅動用磁鐵32也能夠以安裝在相對於可動體16成為固定體的支撐體17上，而非安裝在筒狀外殼12上的方式構成。On both sides of the movable body 16 in the X-axis direction and on both sides of the Y-axis direction, swing drive coils 31 are attached, respectively. In addition, as shown in FIGS. 3 and 4, the inner walls of the cylindrical case 12 facing each other in the X-axis direction and the two inner walls facing each other in the Y-axis direction face each swing drive coil 31 The magnet 32 for swing drive is attached. The swing driving coil 31 and the swing driving magnet 32 constitute a swing driving mechanism. In addition, the swing drive magnet 32 can also be configured to be attached to the support body 17 that is fixed to the movable body 16 instead of being attached to the cylindrical housing 12.

（振動校正） 光學單元10包括：撓性印製電路基板33a、撓性印製電路基板33b、撓性印製電路基板34。撓性印製電路基板33a與各滾動驅動用線圈23電性連接，撓性印製電路基板33b與各擺動驅動用線圈31電性連接。撓性印製電路基板34與可動體16所保持的電路基板35電性連接。在電路基板35中安裝有將由光學模組所取入的被攝體像轉換成電信號的拍攝元件36（參照圖5B），光學模組及電路基板35構成相機模組。(Vibration correction) The optical unit 10 includes a flexible printed circuit board 33a, a flexible printed circuit board 33b, and a flexible printed circuit board 34. The flexible printed circuit board 33a is electrically connected to each rolling drive coil 23, and the flexible printed circuit board 33b is electrically connected to each swing drive coil 31. The flexible printed circuit board 34 is electrically connected to the circuit board 35 held by the movable body 16. An imaging element 36 (see FIG. 5B) that converts a subject image taken by an optical module into an electrical signal is mounted on the circuit board 35, and the optical module and the circuit board 35 constitute a camera module.

若電流經由撓性印製電路基板33a而在各滾動驅動用線圈23中流通，則在各滾動驅動用線圈23與各滾動驅動用磁鐵24之間產生滾動方向的磁驅動力。由相機模組所攝影的被攝體像藉由支撐體17利用此滾動方向的磁驅動力，相對於固定體15環繞Z軸進行旋轉，而修正由可動體16中所包括的陀螺儀（gyroscope）所檢測的環繞Z軸的滾動方向的像振動。另外，若電流經由撓性印製電路基板33b而在各擺動驅動用線圈31中流通，則在各擺動驅動用線圈31與各擺動驅動用磁鐵32之間產生磁驅動力。由相機模組所攝影的被攝體像藉由可動體16利用這些磁驅動力，相對於支撐體17環繞第1軸線R1及第2軸線R2進行擺動，而修正由可動體16中所包括的陀螺儀所檢測的環繞X軸的縱搖（pitching）方向及環繞Y軸的偏搖（yawing）方向的像振動。When an electric current flows in each rolling drive coil 23 via the flexible printed circuit board 33a, a magnetic driving force in the rolling direction is generated between each rolling drive coil 23 and each rolling drive magnet 24. The subject image captured by the camera module is rotated by the support 17 using the magnetic driving force in this rolling direction relative to the fixed body 15 around the Z axis, and the gyroscope (gyroscope) included in the movable body 16 is corrected ) The detected image vibration in the rolling direction around the Z axis. In addition, when a current flows through each of the swing driving coils 31 through the flexible printed circuit board 33b, a magnetic driving force is generated between each swing driving coil 31 and each swing driving magnet 32. The image of the subject captured by the camera module is oscillated around the first axis R1 and the second axis R2 relative to the support 17 by the movable body 16 using these magnetic driving forces, and the correction included in the movable body 16 is corrected. The image vibration detected by the gyroscope in the pitching direction around the X axis and in the yawing direction around the Y axis.

（作用・效果） 根據此種本實施方式的光學單元10，在光學單元10自身中設置有堵塞固定體15的開口部13b的四周的蓋構件20，在光學單元10單體中可防止灰塵或異物從開口部13b朝光學單元10內部的侵入。因此，在設計安裝光學單元10的手機等的光學機器時，無需如之前般考慮光學單元10與機器的相對位置關係，而容易進行機器設計，另外，也可以縮短設計時間。另外，由於在光學單元10單體中實施防塵對策，因此，光學單元10作為製品的處理性提升。另外，與在光學機器等中安裝蓋玻璃的情況相比，可使蓋構件20的大小變小。即，根據本實施方式，可提供一種容易進行機器設計，另外，也可以縮短設計時間，並且作為製品的處理性已提升的光學單元10。(Functions/Effects) According to the optical unit 10 of this embodiment, the optical unit 10 itself is provided with a cover member 20 that blocks around the opening 13b of the fixed body 15, and the optical unit 10 alone can prevent dust or Foreign matter penetrates into the optical unit 10 from the opening 13b. Therefore, when designing an optical device such as a mobile phone on which the optical unit 10 is mounted, it is not necessary to consider the relative positional relationship between the optical unit 10 and the device as before, and it is easy to design the device, and the design time can also be shortened. In addition, since the anti-dust measures are implemented in the optical unit 10 alone, the handleability of the optical unit 10 as a product is improved. In addition, the size of the cover member 20 can be reduced compared to the case where a cover glass is attached to an optical device or the like. That is, according to the present embodiment, it is possible to provide an optical unit 10 that is easy to design the machine, and also can shorten the design time and has improved the handleability as a product.

另外，雖然將可動體16在固定體15中的移動範圍設定成可動體16不接觸蓋構件20的範圍，但即便可動體16因施加至光學單元10中的衝擊等而朝蓋構件20側移動，根據本實施方式的光學單元10，在蓋構件20中朝被攝體側凹陷而形成的凹部20b也成為緩衝空間，而可避免可動體16的透鏡18等與蓋構件20的干涉。另外，也可以將蓋構件20設置在即便可動體16因施加至光學單元10中的衝擊等而朝蓋構件20側移動，可動體16的透鏡18等與蓋構件20也不產生干涉的位置上。In addition, although the movable range of the movable body 16 in the fixed body 15 is set such that the movable body 16 does not contact the cover member 20, even if the movable body 16 moves toward the cover member 20 side due to an impact applied to the optical unit 10 or the like According to the optical unit 10 of the present embodiment, the concave portion 20 b formed by being recessed toward the subject side in the cover member 20 also serves as a buffer space, and interference between the lens 18 of the movable body 16 and the cover member 20 can be avoided. In addition, the cover member 20 may be provided at a position where the movable body 16 does not interfere with the cover member 20 even if the movable body 16 moves toward the cover member 20 side due to an impact applied to the optical unit 10 or the like. .

另外，根據本實施方式的光學單元10，如所述般，由於包括相對於固定體15自由擺動地支撐可動體16的擺動支撐機構、及使經由此擺動支撐機構而支撐在固定體15上的可動體16擺動的擺動驅動機構，因此，即便對光學單元10施加振動，也藉由擺動驅動機構朝抵消振動的方向驅動經由擺動支撐機構而支撐在固定體15上的可動體16，由此防止在攝影圖像中產生紊亂。因此，可提供一種不僅包括振動校正功能，而且具備防塵性能或防水性能的光學單元10。In addition, according to the optical unit 10 of the present embodiment, as described above, it includes a swing support mechanism that supports the movable body 16 so as to swing freely with respect to the fixed body 15 and a support mechanism that supports the fixed body 15 via the swing support mechanism. Since the swing drive mechanism of the movable body 16 swings, even if vibration is applied to the optical unit 10, the movable body 16 supported on the fixed body 15 via the swing support mechanism by the swing drive mechanism is driven by the swing drive mechanism, thereby preventing Disorders appear in the photographic image. Therefore, it is possible to provide an optical unit 10 that not only includes a vibration correction function, but also has dustproof performance or waterproof performance.

（變形例） 另外，在所述實施方式中，對將蓋構件20與被攝體側外殼13設為不同體的結構進行了說明，但也能夠以將兩者一體地形成的方式構成。(Modification) In the above-described embodiment, the structure in which the cover member 20 and the subject-side housing 13 are separate bodies has been described. However, it is also possible to configure both of them integrally.

另外，在所述實施方式中，對僅使蓋構件20的固定面20a與被攝體側外殼13的被攝體側端面13a抵接，並藉由接著劑等來將兩者固定的情況進行了說明。但是，例如如圖8A的光學單元10的部分放大剖面圖所示，也能夠以如下方式構成：在與被攝體側端面13a抵接的蓋構件20的固定面20a上，形成當固定面20a已與被攝體側端面13a抵接時包圍被攝體側外殼13的開口部13b的周圍的環狀的第一槽部41，且藉由第一槽部41中所包括的接著劑或雙面膠等的接著構件，來將蓋構件20固定在固定體15上。另外，在圖8A及圖8B中，對與圖5B相同的部分標注相同的符號並省略其說明。In the above-described embodiment, only the fixing surface 20a of the cover member 20 is brought into contact with the object-side end surface 13a of the object-side housing 13 and the two are fixed by an adhesive or the like. Description. However, for example, as shown in a partially enlarged cross-sectional view of the optical unit 10 of FIG. 8A, it can also be configured such that a fixed surface 20a is formed on the fixed surface 20a of the cover member 20 that is in contact with the object-side end surface 13a The ring-shaped first groove 41 surrounding the opening 13b of the subject-side housing 13 when in contact with the object-side end face 13a, and by the adhesive or double included in the first groove 41 Adhesive members such as glue are used to fix the cover member 20 to the fixed body 15. In addition, in FIGS. 8A and 8B, the same parts as those in FIG. 5B are denoted by the same symbols and their descriptions are omitted.

第一槽部41並不限定於固定面20a，只要以當固定面20a已與被攝體側端面13a抵接時包圍被攝體側外殼13的開口部13b的周圍的方式，形成在被攝體側端面13a或固定面20a的至少任一個上即可。The first groove 41 is not limited to the fixed surface 20a, as long as it is formed on the subject so as to surround the opening 13b of the subject-side housing 13 when the fixed surface 20a has come into contact with the subject-side end surface 13a At least one of the body-side end surface 13a or the fixed surface 20a may be used.

根據此種結構，藉由第一槽部41中所包括的接著構件來將蓋構件20確實地固定在固定體15上，而且，固定成包圍開口部13b的周圍的環狀，因此，即便當在蓋構件20與固定體15之間略微存在間隙時，也可以確實地防止灰塵或異物朝開口部13b中的侵入。According to this structure, the cover member 20 is securely fixed to the fixed body 15 by the adhesive member included in the first groove 41, and is fixed in a ring shape surrounding the opening 13b. Therefore, even when Even if there is a slight gap between the cover member 20 and the fixed body 15, the intrusion of dust or foreign matter into the opening 13 b can be reliably prevented.

另外，如圖8B所示，第一槽部41也能夠以如下方式構成：將內側第一槽部41a與外側第一槽部41b在徑向上並排地形成在開口部13b的外周圍，且在離開口部13b的外周圍近的內側的內側第一槽部41a中包括接著構件，在離開口部13b的外周圍遠的外側的外側第一槽部41b中包括密封構件42。根據此種結構，藉由在內側第一槽部41a中包括接著構件，而進行蓋構件20朝固定體15上的固定，藉由在外側第一槽部41b中包括密封構件42，而實施對於開口部13b的防塵對策及防水對策，並且可防止異物對於接著構件的附著。因此，光學單元10的防塵性及防水性提升。In addition, as shown in FIG. 8B, the first groove 41 can also be configured such that the inner first groove 41a and the outer first groove 41b are formed side by side in the radial direction on the outer periphery of the opening 13b, and The inner first groove portion 41a on the inner side near the outer periphery of the opening 13b includes a bonding member, and the outer first groove portion 41b on the outer side farther from the outer periphery of the mouth portion 13b includes a sealing member 42. According to this structure, by including the adhesive member in the inner first groove portion 41a, the fixing of the cover member 20 to the fixed body 15 is performed, and by including the sealing member 42 in the outer first groove portion 41b, The opening portion 13b is protected against dust and water, and it is possible to prevent adhesion of foreign matter to the connecting member. Therefore, the dustproofness and waterproofness of the optical unit 10 are improved.

此時，如圖9A的部分放大剖面圖所示，優選以如下方式構成：密封構件42由剖面形狀呈圓形形狀的橡膠等彈性構件形成，且外側第一槽部41b的剖面形狀呈具有比彈性構件的圓形剖面的曲率半徑大的曲率半徑的曲面形狀。根據此種結構，藉由密封構件42由彈性構件形成，而密封性更高地將蓋構件20及固定體15間密封。另外，藉由外側第一槽部41b的剖面形狀呈具有比彈性構件的圓形剖面的曲率半徑大的曲率半徑的曲面形狀，如圖9B的部分放大剖面圖所示，當密封構件42夾在固定體15的被攝體側端面13a與蓋構件20的固定面20a之間而壓扁時，壓扁後朝側方膨出的密封構件42沿著外側第一槽部41b的曲率半徑大的曲面部的曲面朝側方擴展。因此，密封構件42與外側第一槽部41b的密接性得到保持，蓋構件20及固定體15間確實地密接並得到固定。At this time, as shown in the partially enlarged cross-sectional view of FIG. 9A, it is preferable to form the sealing member 42 by an elastic member such as rubber having a circular cross-sectional shape, and the cross-sectional shape of the outer first groove 41 b has a ratio The curved shape of the radius of curvature of the circular cross-section of the elastic member is large. According to this structure, the sealing member 42 is formed of an elastic member, and the lid member 20 and the fixed body 15 are sealed with higher sealing performance. In addition, since the cross-sectional shape of the outer first groove portion 41b is a curved shape having a radius of curvature larger than that of the circular cross-section of the elastic member, as shown in the partially enlarged cross-sectional view of FIG. 9B, when the sealing member 42 is sandwiched When the object-side end surface 13a of the fixed body 15 and the fixed surface 20a of the cover member 20 are flattened, the sealing member 42 that swells laterally after flattening has a large radius of curvature along the outer first groove 41b The curved surface of the curved portion expands laterally. Therefore, the adhesiveness between the sealing member 42 and the outer first groove portion 41b is maintained, and the cover member 20 and the fixed body 15 are securely adhered and fixed.

另外，如圖10A的部分放大剖面圖所示，也能夠以如下方式構成：在蓋構件20的朝向被攝體的被攝體側端面20c上，在將透鏡18的光軸作為中心的圓周方向上形成環狀的第二槽部51a，且在安裝有光學單元10的光學機器等的構成構件52上所形成的被攝體光取入口52a的周圍，被包圍有所述構成構件52的反被攝體側端面52b，所述第二槽部51a中所包括的密封構件53與構成構件52的反被攝體側端面52b抵接。In addition, as shown in the partially enlarged cross-sectional view of FIG. 10A, it can also be configured such that on the subject-side end surface 20 c of the cover member 20 facing the subject, in the circumferential direction centering on the optical axis of the lens 18 A ring-shaped second groove portion 51a is formed on the top, and around the object light inlet 52a formed on the constituent member 52 of an optical device or the like in which the optical unit 10 is mounted, the back of the constituent member 52 is surrounded The object-side end surface 52b, and the sealing member 53 included in the second groove portion 51a abuts the counter-object-side end surface 52b of the constituent member 52.

另外，如圖10B的部分放大剖面圖所示，也能夠以如下方式構成：在構成固定體15的被攝體側外殼13中的朝向被攝體的被攝體側端面13a上，在將透鏡18的光軸作為中心的圓周方向上形成環狀的第二槽部51b，且在安裝有光學單元10的光學機器等的構成構件52上所形成的被攝體光取入口52a的周圍，被包圍有所述構成構件52的反被攝體側端面52b，所述第二槽部51b中所包括的密封構件53與構成構件52的反被攝體側端面52b抵接。In addition, as shown in the partially enlarged cross-sectional view of FIG. 10B, it can also be configured in such a manner that on the object-side end face 13 a facing the object in the object-side housing 13 constituting the fixed body 15, the lens The second groove portion 51b is formed in the circumferential direction in the circumferential direction with the optical axis of 18 as the center, and is formed around the object light inlet 52a formed on the structural member 52 such as an optical device on which the optical unit 10 is mounted, is The anti-subject-side end surface 52 b of the constituent member 52 is surrounded, and the sealing member 53 included in the second groove portion 51 b is in contact with the anti-subject-side end surface 52 b of the constituent member 52.

即，第二槽部51a、第二槽部51b只要形成在固定體15或蓋構件20的至少一個中的朝向被攝體的被攝體側端面13a或被攝體側端面20c上即可。根據此種結構，藉由形成在固定體15或蓋構件20的至少一個的被攝體側端面13a或被攝體側端面20c上的第二槽部51a、第二槽部51b中所包括的密封構件53與包圍被攝體光取入口52a的周圍的機器構成構件52的反被攝體側端面52b抵接，而防止灰塵或異物、水滴等從所述抵接部朝光學單元10側侵入。因此，光學單元10的防塵性及防水性提升。另外，所述第二槽部51a、第二槽部51b也能夠以形成在構成構件52的反被攝體側端面52b的一側的方式構成。That is, the second groove portion 51a and the second groove portion 51b may be formed on the object-side end surface 13a or the object-side end surface 20c facing at least one of the fixed body 15 or the cover member 20. According to this structure, the second groove portion 51a and the second groove portion 51b included in the second groove portion 51a and the second groove portion 51b formed on the object-side end surface 13a or the object-side end surface 20c of at least one of the fixed body 15 or the cover member 20 The sealing member 53 is in contact with the anti-subject-side end surface 52b of the machine component 52 that surrounds the object light inlet 52a to prevent the intrusion of dust, foreign objects, water droplets, etc. from the contact portion toward the optical unit 10 side . Therefore, the dustproofness and waterproofness of the optical unit 10 are improved. In addition, the second groove portion 51a and the second groove portion 51b can also be configured to be formed on the side of the end surface 52b of the constituent member 52 opposite to the object side.

即便在此時，也優選以如下方式構成：密封構件53由剖面形狀呈圓形形狀的橡膠等彈性構件形成，且第二槽部51a、第二槽部51b的剖面形狀呈具有比彈性構件的圓形剖面的曲率半徑大的曲率半徑的曲面形狀。根據此種結構，藉由密封構件53由彈性構件形成，而密封性更高地將機器的構成構件52與固定體15或蓋構件20之間密封。另外，藉由第二槽部51a、第二槽部51b的剖面形狀呈具有比彈性構件的圓形剖面的曲率半徑大的曲率半徑的曲面形狀，當密封構件53夾在機器構成構件52的反被攝體側端面52b與固定體15或蓋構件20的被攝體側端面13a或被攝體側端面20c之間而壓扁時，壓扁後朝側方膨出的密封構件53沿著第二槽部51a、第二槽部51b的曲率半徑大的曲面部的曲面朝側方擴展。因此，密封構件53與第二槽部51a、第二槽部51b的密接性得到保持，機器的構成構件52與固定體15或蓋構件20之間確實地密接並得到固定。Even at this time, it is preferable that the sealing member 53 be formed of an elastic member such as rubber having a circular cross-sectional shape, and the cross-sectional shapes of the second groove portion 51a and the second groove portion 51b are higher than those of the elastic member. The curved shape of the radius of curvature of the circular cross-section is large. According to such a configuration, the sealing member 53 is formed of an elastic member, and the sealing between the constituent member 52 of the machine and the fixed body 15 or the cover member 20 is improved. In addition, since the cross-sectional shapes of the second groove portion 51a and the second groove portion 51b are curved surfaces having a curvature radius larger than that of the circular cross-section of the elastic member, when the sealing member 53 is sandwiched between the machine constituent members 52 When the object-side end surface 52b is crushed between the fixed body 15 or the object-side end surface 13a or the object-side end surface 20c of the cover member 20, the sealing member 53 that swells laterally after being crushed The curved surface of the curved surface portion having a large radius of curvature of the second groove portion 51a and the second groove portion 51b expands laterally. Therefore, the adhesion between the sealing member 53 and the second groove portion 51a and the second groove portion 51b is maintained, and the component 52 of the machine is securely adhered to and fixed to the fixed body 15 or the cover member 20.

另外，如圖10A及圖10B所示，優選第二槽部51a、第二槽部51b從透鏡18的光軸方向觀察形成在開口部13b的外側。根據此種結構，從機器的構成構件52朝蓋構件20的一側施加的負荷經由第二槽部51a中所包括的密封構件53及形成第二槽部51a的開口部13b的周圍的蓋構件20而施加，並由外側第一槽部41b中所包括的密封構件42及包圍開口部13b的周圍的固定體15的被攝體側端面13a承受。即，從機器的構成構件52朝蓋構件20的一側施加的負荷經由開口部13b的周圍的蓋構件20而由開口部13b的周圍的被攝體側端面13a承受，並藉由包圍開口部13b來設置的外側第一槽部41b及第二槽部51a中分別包括的密封構件42、密封構件53壓扁而得到緩衝。因此，抑制因從機器的構成構件52朝蓋構件20中施加的負荷而導致應力施加至包含透鏡18的視角18a的範圍的透鏡18的光軸所穿過的蓋構件20的中心周邊區域中，並防止包含透鏡18的視角18a的範圍的區域的蓋構件20歪曲。因此，可防止透過蓋構件20的被攝體光因蓋構件20的歪曲而折射、或由蓋構件20的破損所引起的光學機器等機器的故障。In addition, as shown in FIGS. 10A and 10B, it is preferable that the second groove portion 51 a and the second groove portion 51 b are formed outside the opening portion 13 b as viewed from the optical axis direction of the lens 18. According to this configuration, the load applied from the component 52 of the device toward the side of the cover member 20 passes through the sealing member 53 included in the second groove 51a and the cover member around the opening 13b forming the second groove 51a It is applied by 20 and is received by the sealing member 42 included in the outer first groove portion 41b and the object-side end surface 13a of the fixed body 15 surrounding the opening 13b. That is, the load applied from the structural member 52 of the device toward the side of the cover member 20 is received by the object-side end surface 13a around the opening 13b through the cover member 20 around the opening 13b, and by surrounding the opening The sealing member 42 and the sealing member 53 respectively included in the outer first groove portion 41b and the second groove portion 51a provided at 13b are crushed and cushioned. Therefore, the stress applied to the central peripheral region of the cover member 20 through which the optical axis of the lens 18 including the range of the angle of view 18a of the lens 18 is caused due to the load applied from the component member 52 of the machine toward the cover member 20 is suppressed, Also, the cover member 20 in the area including the range of the angle of view 18a of the lens 18 is prevented from being distorted. Therefore, it is possible to prevent the object light transmitted through the cover member 20 from being refracted due to the distortion of the cover member 20 or the malfunction of the device such as the optical device caused by the damage of the cover member 20.

[產業上的可利用性] 本實施方式的光學單元10例如可用於帶相機的手機、行車記錄儀等光學機器，或搭載在頭盔、自行車、無線電遙控直升機（radio control helicopter）等移動體上的運動相機（action camera）或可穿戴相機（wearable camera）等光學機器。[Industrial Applicability] The optical unit 10 of the present embodiment can be used for optical devices such as a mobile phone with a camera and a driving recorder, or mounted on a mobile body such as a helmet, bicycle, or radio control helicopter. Optical devices such as action cameras or wearable cameras.

10‧‧‧光學單元11‧‧‧底板12‧‧‧筒狀外殼13‧‧‧被攝體側外殼13a‧‧‧被攝體側端面13b‧‧‧開口部14‧‧‧反被攝體側外殼15‧‧‧固定體16‧‧‧可動體17‧‧‧支撐體17a‧‧‧端面17b‧‧‧底板構件18‧‧‧透鏡（光學元件）18a‧‧‧視角19‧‧‧鏡筒構件20‧‧‧蓋構件20a‧‧‧固定面20b‧‧‧凹部20c‧‧‧被攝體側端面21‧‧‧磁軛22‧‧‧滾珠軸承23‧‧‧滾動驅動用線圈24‧‧‧滾動驅動用磁鐵25‧‧‧軸26‧‧‧第1擺動支撐部27‧‧‧第2擺動支撐部28‧‧‧可動框29‧‧‧球體30‧‧‧接點彈簧31‧‧‧擺動驅動用線圈32‧‧‧擺動驅動用磁鐵33a、33b、34‧‧‧撓性印製電路基板35‧‧‧電路基板36‧‧‧拍攝元件37‧‧‧墊圈38‧‧‧波形墊圈41、41a、41b‧‧‧第一槽部42、53‧‧‧密封構件51a、51b‧‧‧第二槽部52‧‧‧機器的構成構件52a‧‧‧被攝體光取入口52b‧‧‧反被攝體側端面100‧‧‧光學單元110‧‧‧固定體110a‧‧‧開口部120‧‧‧可動體1000‧‧‧光學機器1100‧‧‧機器本體（底架）1100a‧‧‧相向面R1‧‧‧第1軸線R2‧‧‧第2軸線+X‧‧‧X軸方向的一側-X‧‧‧X軸方向的另一側+Y‧‧‧Y軸方向的一側-Y‧‧‧Y軸方向的另一側+Z‧‧‧Z軸方向的一側-Z‧‧‧Z軸方向的另一側10‧‧‧Optical unit 11‧‧‧Bottom plate 12‧‧‧Cylinder case 13‧‧‧Subject side case 13a‧‧‧Subject side end face 13b‧‧‧Opening part 14‧‧‧Reverse subject Side shell 15‧‧‧ Fixed body 16‧‧‧ Movable body 17‧‧‧ Support body 17a‧‧‧End face 17b‧‧‧Bottom plate member 18‧‧‧Lens (optical element) 18a‧‧‧View angle 19‧‧‧Mirror Cylinder member 20‧‧‧Cover member 20a‧‧‧Fixed surface 20b‧‧‧Concave portion 20c‧‧‧Subject side end surface 21‧‧‧Yoke 22‧‧‧Ball bearing 23‧‧‧Rolling drive coil 24‧ ‧‧Magnet for rolling drive 25‧‧‧Shaft 26‧‧‧ First swing support part 27‧‧‧Second swing support part 28‧‧‧Movable frame 29‧‧‧Sphere 30‧‧‧Contact spring 31‧‧ ‧Swing drive coil 32‧‧‧Swing drive magnets 33a, 33b, 34‧‧‧‧Flexible printed circuit board 35‧‧‧ circuit board 36‧‧‧imaging element 37‧‧‧washer 38‧‧‧wave washer 41, 41a, 41b ‧‧‧ First groove part 42, 53 ‧ ‧ ‧ Seal member 51a, 51b ‧ ‧ ‧ Second groove part 52 ‧ ‧ ‧ Constituent member of machine 52a ‧ ‧ Subject light entrance 52b ‧ ‧‧Anti-subject side end face 100‧‧‧Optical unit 110‧‧‧Fixed body 110a‧‧‧Opening part 120‧‧‧Moving body 1000‧‧‧Optical machine 1100‧‧‧Machine body (underframe) 1100a‧ ‧‧ Opposite surface R1‧‧‧ 1st axis R2‧‧‧ 2nd axis + X‧‧‧‧one side of X axis direction-X‧‧‧‧X axis direction +Y‧‧‧ Y axis direction One side-the other side in the Y axis direction + the other side in the Z axis direction-the other side in the Z axis direction

圖1是現有的光學單元的概略的立體圖。 圖2是本發明的一實施方式的光學單元的外觀立體圖。 圖3是一實施方式的光學單元的從反被攝體側觀察的分解立體圖。 圖4是一實施方式的光學單元的從被攝體側觀察的分解立體圖。 圖5A是一實施方式的光學單元的平面圖，圖5B是剖面圖。 圖6是將由一實施方式的光學單元的支撐體及反被攝體側外殼支撐的各零件分解，並從反被攝體側觀察的分解立體圖。 圖7是將由一實施方式的光學單元的支撐體及反被攝體側外殼支撐的各零件分解，並從被攝體側觀察的分解立體圖。 圖8A是一實施方式的第1變形例的光學單元的蓋構件周邊的部分放大剖面圖，圖8B是一實施方式的第2變形例的光學單元的蓋構件周邊的部分放大剖面圖。 圖9A是圖8B中所示的密封構件的壓扁前的剖面圖，圖9B是已壓扁的狀態的剖面圖。 圖10A是一實施方式的第三變形例的光學單元的蓋構件周邊的部分放大剖面圖，圖10B是一實施方式的第四變形例的光學單元的蓋構件周邊的部分放大剖面圖。FIG. 1 is a schematic perspective view of a conventional optical unit. 2 is an external perspective view of an optical unit according to an embodiment of the present invention. FIG. 3 is an exploded perspective view of the optical unit according to the embodiment as viewed from the anti-subject side. 4 is an exploded perspective view of the optical unit according to the embodiment as viewed from the subject side. 5A is a plan view of an optical unit according to an embodiment, and FIG. 5B is a cross-sectional view. 6 is an exploded perspective view of the components supported by the support unit of the optical unit and the anti-subject side housing of the embodiment, exploded and viewed from the anti-subject side. 7 is an exploded perspective view of the components supported by the support unit of the optical unit and the anti-subject side housing of the embodiment, exploded and viewed from the subject side. 8A is a partially enlarged cross-sectional view of the periphery of the cover member of the optical unit according to the first modification of the embodiment, and FIG. 8B is a partially enlarged cross-sectional view of the periphery of the cover member of the optical unit according to a second modification of the embodiment. 9A is a cross-sectional view of the sealing member shown in FIG. 8B before being collapsed, and FIG. 9B is a cross-sectional view of a state where it is collapsed. 10A is a partially enlarged cross-sectional view of the periphery of the cover member of the optical unit according to the third modification of the embodiment, and FIG. 10B is a partially enlarged cross-sectional view of the periphery of the cover member of the optical unit of a fourth modification of the embodiment.

11‧‧‧底板 11‧‧‧Bottom plate

12‧‧‧筒狀外殼 12‧‧‧Cylinder shell

13‧‧‧被攝體側外殼 13‧‧‧Subject side shell

13a‧‧‧被攝體側端面 13a‧‧‧Subject side end face

13b‧‧‧開口部 13b‧‧‧Opening

14‧‧‧反被攝體側外殼 14‧‧‧Anti-subject side shell

15‧‧‧固定體 15‧‧‧Fixed body

17‧‧‧支撐體 17‧‧‧Support

17b‧‧‧底板構件 17b‧‧‧Bottom member

18‧‧‧透鏡(光學元件) 18‧‧‧lens (optical element)

18a‧‧‧視角 18a‧‧‧ Perspective

19‧‧‧鏡筒構件 19‧‧‧Lens tube components

20‧‧‧蓋構件 20‧‧‧Cover member

20a‧‧‧固定面 20a‧‧‧Fixed surface

20b‧‧‧凹部 20b‧‧‧recess

20c‧‧‧被攝體側端面 20c‧‧‧Subject side end face

21‧‧‧磁軛 21‧‧‧Yoke

22‧‧‧滾珠軸承 22‧‧‧Ball bearings

25‧‧‧軸 25‧‧‧axis

31‧‧‧擺動驅動用線圈 31‧‧‧ Coil for swing drive

32‧‧‧擺動驅動用磁鐵 32‧‧‧Swing drive magnet

33b、34‧‧‧撓性印製電路基板 33b, 34‧‧‧Flexible printed circuit board

35‧‧‧電路基板 35‧‧‧ circuit board

36‧‧‧拍攝元件 36‧‧‧Camera

37‧‧‧墊圈 37‧‧‧washer

38‧‧‧波形墊圈 38‧‧‧Wave washer

+X‧‧‧X軸方向的一側 +X‧‧‧X axis direction side

+Y‧‧‧Y軸方向的一側 +Y‧‧‧Y axis direction side

-Y‧‧‧Y軸方向的另一側 -Y‧‧‧The other side of Y axis direction

+Z‧‧‧Z軸方向的一側 +Z‧‧‧one side in Z axis direction

-Z‧‧‧Z軸方向的另一側 -The other side of Z‧‧‧Z axis direction

Claims (13)

一種光學單元，包括：可動體，具備經由光學元件而取入被攝體光的光學模組；以及固定體，以所述可動體能自由可動的方式***述可動體，所述光學單元的特徵在於：所述固定體在被攝體側端面上形成有開口部，所述開口部使所述被攝體光朝所述光學元件中射入，且所述光學單元包括透明的蓋構件，所述蓋構件的固定面，從所述固定體的外側，而與所述開口部的周圍的所述被攝體側端面抵接，來堵塞所述開口部的四周，所述固定面與所述被攝體側端面，在所述光學元件的光軸的方向上為彼此相面對。 An optical unit includes: a movable body having an optical module that takes in light of a subject through an optical element; and a fixed body that houses the movable body in a manner that the movable body can move freely. Features of the optical unit The fixed body has an opening formed on the end surface of the object side, the opening allows the object light to enter the optical element, and the optical unit includes a transparent cover member, so The fixing surface of the cover member contacts the end surface of the subject side around the opening from the outside of the fixing body to block the periphery of the opening, and the fixing surface and the The object-side end faces face each other in the direction of the optical axis of the optical element. 如申請專利範圍第1項所述的光學單元，其中，在所述固定體的所述被攝體側端面或所述蓋構件的與所述被攝體側端面抵接的所述固定面的至少任一個上，形成有環狀的第一槽部，當所述固定面已與所述被攝體側端面抵接時，所述第一槽部包圍所述開口部的周圍，且所述蓋構件藉由所述第一槽部中所包括的接著構件而固定在所述固定體上。 The optical unit according to item 1 of the patent application range, wherein at the object-side end surface of the fixed body or the fixed surface of the cover member in contact with the object-side end surface At least any one of them is formed with a ring-shaped first groove portion, when the fixed surface has been in contact with the object side end surface, the first groove portion surrounds the periphery of the opening, and the The cover member is fixed to the fixed body by the adhesive member included in the first groove portion. 如申請專利範圍第2項所述的光學單元，其中，所述第一槽部的內側第一槽部與外側第一槽部在徑向上並排地形成在所述開口部的外周圍，且 在離所述開口部的外周圍近的內側的所述內側第一槽部中包括所述接著構件，在離所述開口部的外周圍遠的外側的所述外側第一槽部中包括密封構件。 The optical unit according to item 2 of the patent application range, wherein the inner first groove portion and the outer first groove portion of the first groove portion are formed radially side by side on the outer periphery of the opening, and The inner first groove portion on the inner side near the outer circumference of the opening portion includes the adhesive member, and the outer first groove portion on the outer side farther from the outer circumference of the opening portion includes a seal member. 如申請專利範圍第3項所述的光學單元，其中，所述密封構件由剖面形狀呈圓形形狀的彈性構件形成，且所述外側第一槽部的剖面形狀呈具有比所述彈性構件的剖面的曲率半徑大的曲率半徑的曲面形狀。 The optical unit according to item 3 of the patent application range, wherein the sealing member is formed of an elastic member having a circular cross-sectional shape, and the cross-sectional shape of the outer first groove portion is larger than that of the elastic member The curved surface shape with a large radius of curvature of the cross section. 如申請專利範圍第1項所述的光學單元，其中，在所述固定體的朝向被攝體的所述被攝體側端面上、或在所述蓋構件的朝向所述被攝體的所述被攝體側端面上，在將所述光學元件的光軸作為中心的圓周方向上形成有環狀的第二槽部，且所述第二槽部中所包括的密封構件與供安裝所述光學單元的機器的構成構件上的、將被攝體光取入口的周圍所包圍的反被攝體側端面相抵接，其中，所述被攝體光取入口形成在所述構成構件上。 The optical unit according to item 1 of the patent application scope, wherein, on the end surface of the fixed body facing the subject or on the position of the cover member facing the subject On the end surface on the subject side, a ring-shaped second groove portion is formed in the circumferential direction centering on the optical axis of the optical element, and a sealing member and a mounting place included in the second groove portion On a constituent member of the device of the optical unit, the end surface of the anti-subject side surrounded by the periphery of the subject light inlet is abutted, wherein the subject light inlet is formed on the constituent member. 如申請專利範圍第5項所述的光學單元，其中，所述密封構件由剖面形狀呈圓形形狀的彈性構件形成，且 所述第二槽部的剖面形狀呈具有比所述彈性構件的剖面的曲率半徑大的曲率半徑的曲面形狀。 The optical unit according to item 5 of the patent application range, wherein the sealing member is formed of an elastic member having a circular cross-sectional shape, and The cross-sectional shape of the second groove portion is a curved shape having a radius of curvature larger than the radius of curvature of the cross-section of the elastic member. 如申請專利範圍第1項所述的光學單元，其中，所述蓋構件在反被攝體側的面上，形成有朝被攝體側凹陷的凹部。 The optical unit according to item 1 of the patent application range, wherein the cover member is formed with a concave portion recessed toward the subject side on the surface opposite to the subject side. 如申請專利範圍第1項所述的光學單元，更包括：支撐機構，以所述可動體能相對於所述固定體自由擺動的方式支撐所述可動體；以及驅動機構，使經由所述支撐機構而支撐在所述固定體上的所述可動體擺動。 The optical unit according to item 1 of the patent application scope further includes: a support mechanism that supports the movable body in a manner that the movable body can swing freely with respect to the fixed body; and a drive mechanism that passes the support mechanism The movable body supported on the fixed body swings. 如申請專利範圍第4項所述的光學單元，其中，在所述固定體的朝向被攝體的所述被攝體側端面上、或在所述蓋構件的朝向所述被攝體的所述被攝體側端面上，在將所述光學元件的光軸作為中心的圓周方向上形成有環狀的第二槽部，且所述第二槽部中所包括的密封構件與供安裝所述光學單元的機器的構成構件上的、將被攝體光取入口的周圍所包圍的反被攝體側端面相抵接，其中，所述被攝體光取入口形成在所述構成構件上。 The optical unit according to item 4 of the patent application scope, wherein, on the end face of the fixed body facing the subject, or on the position of the cover member facing the subject On the end surface on the subject side, a ring-shaped second groove portion is formed in the circumferential direction centering on the optical axis of the optical element, and a sealing member and a mounting place included in the second groove portion On a constituent member of the device of the optical unit, the end surface of the anti-subject side surrounded by the periphery of the subject light inlet is abutted, wherein the subject light inlet is formed on the constituent member. 如申請專利範圍第9項所述的光學單元，其中，所述密封構件由剖面形狀呈圓形形狀的彈性構件形成，且 所述第二槽部的剖面形狀呈具有比所述彈性構件的剖面的曲率半徑大的曲率半徑的曲面形狀。 The optical unit according to item 9 of the patent application range, wherein the sealing member is formed of an elastic member having a circular cross-sectional shape, and The cross-sectional shape of the second groove portion is a curved shape having a radius of curvature larger than the radius of curvature of the cross-section of the elastic member. 如申請專利範圍第10項所述的光學單元，其中，從所述光學元件的光軸方向觀察，所述第二槽部形成在所述開口部的外側。 The optical unit according to item 10 of the patent application range, wherein the second groove portion is formed outside the opening portion as viewed from the optical axis direction of the optical element. 如申請專利範圍第11項所述的光學單元，其中，所述蓋構件在反被攝體側的面上，形成有朝被攝體側凹陷的凹部。 The optical unit according to item 11 of the patent application range, wherein the cover member is formed with a concave portion recessed toward the object side on the surface on the side opposite to the object side. 如申請專利範圍第12項所述的光學單元，更包括：支撐機構，以所述可動體能相對於所述固定體自由擺動的方式支撐所述可動體；以及驅動機構，使經由所述支撐機構而支撐在所述固定體上的所述可動體擺動。 The optical unit according to item 12 of the patent application scope further includes: a support mechanism that supports the movable body in a manner that the movable body can swing freely with respect to the fixed body; and a drive mechanism that passes through the support mechanism The movable body supported on the fixed body swings.
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