WO2021128178A1 - 一种镜头模组及终端设备 - Google Patents
一种镜头模组及终端设备 Download PDFInfo
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- WO2021128178A1 WO2021128178A1 PCT/CN2019/128748 CN2019128748W WO2021128178A1 WO 2021128178 A1 WO2021128178 A1 WO 2021128178A1 CN 2019128748 W CN2019128748 W CN 2019128748W WO 2021128178 A1 WO2021128178 A1 WO 2021128178A1
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- inclined surface
- lens
- wall
- lens barrel
- wall surface
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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
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
Definitions
- the utility model relates to the technical field of optical lenses, in particular to a lens module and terminal equipment.
- a structure with a diaphragm in front is used to reduce the depth of field (CVD), thereby reducing the size of the aperture.
- the lens module in the prior art adopts a structure with a diaphragm in front.
- the lens is far away from the lens, including a lens barrel with a light hole and a lens assembly contained in the lens barrel.
- the hole wall of the light hole corresponding to the lens assembly is only provided with an inclined surface, and the lens module is prone to stray light during shooting. , Which in turn affects the shooting effect.
- the purpose of the present invention is to provide a lens module and terminal equipment to solve the technical problem that the lens module in the prior art is prone to stray light and affects the shooting effect.
- a lens module includes: a lens barrel and a lens assembly housed in the lens barrel; the lens barrel includes a lens barrel top wall with a light through hole and a lens barrel surrounding the top wall of the lens barrel A side wall, the top wall of the lens barrel includes an inner wall surface for carrying the lens assembly, an outer wall surface opposite to the inner wall surface, and a first inclined surface connected between the inner wall surface and the outer wall surface, The top wall of the lens barrel further includes a second inclined surface connected between the first inclined surface and the outer wall surface, and the first inclined surface is along an edge away from the outer wall surface from an end of the second inclined surface away from the outer wall surface.
- the direction of the central axis of the light passing hole extends obliquely toward the inner wall surface.
- the included angle formed by the second inclined surface and the central axis of the light-passing hole is greater than that of the first inclined surface and the central axis of the light-passing hole The angle formed.
- the lens assembly includes a first lens close to the object side, the first lens includes an optical part for imaging and a support part arranged around the optical part, and the second inclined surface is parallel to the optical part The tangent line at the junction with the support part.
- the connecting line connecting the first inclined surface and the second inclined surface is at the same height as the height bisector of the top wall of the lens barrel.
- the support portion includes a support surface that abuts against the inner wall surface, the support surface is an annular surface, and the support surface includes an inner ring edge close to the optical portion and an outer ring edge close to the side wall of the lens barrel, The distance from the line connecting the first inclined surface and the second inclined surface on the support surface to the inner ring edge in a direction parallel to the central axis of the light hole is equal to the distance to the inner ring edge. The distance from the outer ring edge.
- first inclined surface and the inner wall surface are transitionally connected by a curved surface.
- a terminal device includes the aforementioned lens module.
- the beneficial effect of the utility model lies in that a second inclined surface is provided between the outer wall surface and the first inclined surface, and the first inclined surface is inclined from the end of the second inclined surface away from the outer wall surface to the inner wall surface in a direction away from the central axis of the light hole Extend, that is, the second inclined surface protrudes a certain distance from the first inclined surface toward the light-passing hole.
- the second inclined surface can at least partially intercept stray light.
- FIG. 1 is a schematic diagram of the structure of a lens module in the prior art
- FIG. 2 is a schematic diagram of the structure of a lens module in an embodiment of the utility model
- FIG. 1 Schematic diagram of the structure of the lens barrel
- Fig. 4 is a partial enlarged view of C in Fig. 2.
- FIG. 1 is a schematic structural diagram of a lens module in the prior art.
- the lens module includes a lens 10 and a lens assembly 20 housed in a lens barrel 10, and the lens barrel 10 includes a lens barrel with a light-passing hole 11a.
- the top wall 11 and the side wall 12 of the lens barrel surrounding the top wall 11 of the lens barrel.
- the top wall 11 of the lens barrel includes an inner wall surface 111 for carrying the lens assembly 20, an outer wall surface 112 opposite to the inner wall surface 111, and an outer wall surface 112 connected to the inner wall surface 111.
- the inclined surface 113' between the inner wall surface 111 and the outer wall surface 112.
- the diaphragm When the lens module adopts the structure of the front diaphragm, the diaphragm is far away from the lens, and stray light rays are easily reflected by the inclined surface 113' to enter the lens assembly 20, which affects the imaging effect of the lens assembly 20, resulting in poor shooting effects .
- a lens module includes: a lens barrel 10 and a lens assembly 20 housed in the lens barrel 10;
- the barrel side wall 12 on the barrel top wall 11, the barrel top wall 11 includes an inner wall surface 111 for carrying the lens assembly 20, an outer wall surface 112 opposite to the inner wall surface 111, and a connection between the inner wall surface 111 and the outer wall surface 112
- the top wall 11 of the lens barrel further includes a second inclined surface 114 connected between the first inclined surface 113 and the outer wall surface 112.
- the first inclined surface 113 is from the end of the second inclined surface 114 away from the outer wall surface 112 It extends obliquely toward the inner wall surface 111 in a direction away from the central axis of the light passing hole 11a.
- the second inclined surface 114 is provided between the outer wall surface 112 and the first inclined surface 113, and the first inclined surface 113 extends from the end of the second inclined surface 114 away from the outer wall surface 112 along the distance away from the light hole 11a.
- the direction of the central axis extends obliquely to the inner wall surface 111.
- the second inclined surface 114 is not easy to reflect stray light.
- the first inclined surface 113 is recessed from the second inclined surface 114. When light is irradiated on the first inclined surface 113, the light is reflected to the lens The supporting part 212 does not cause stray light.
- the angle formed by the second inclined surface 114 and the central axis of the light-passing hole 11a is greater than the angle formed by the first inclined surface 113 and the central axis of the light-passing hole 11a.
- the lens assembly 20 includes a first lens 21 close to the object side.
- the lens assembly 20 also includes a plurality of groups of lenses arranged in sequence from the first lens 21 toward the image side.
- the first lens 21 includes an optical part 211 for imaging and a surrounding optics.
- the part 211 is provided with the support part 212.
- the inclination angle of the second inclined surface 114 is set so that the second inclined surface 114 is parallel to the tangent line of the optical portion 211 at the junction with the supporting portion 212.
- the inclination angle and the inclination range of the second inclined surface 114 are set to ensure that the second inclined surface 114 can avoid stray light, and at the same time does not block the lens assembly 20 and does not affect the imaging effect of the lens assembly 20.
- the supporting portion 212 includes a supporting surface 2121 abutting against the inner wall surface 111.
- the supporting surface 2121 is an annular surface including an inner ring edge 2121a close to the optical portion 211 and an outer ring edge 2121b close to the side wall 12 of the lens barrel.
- the distance from the projection of the connecting line of an inclined surface 113 to the second inclined surface 114 on the supporting surface 2121 to the inner ring edge 2121a in a direction parallel to the central axis of the light-passing hole 11a is equal to the distance to the outer ring edge 2121b.
- the line connecting the first inclined surface 113 and the second inclined surface 114 is located above the middle of the supporting surface 2121, which means that the orthographic projection of the first inclined surface 113 does not exceed the center line of the supporting surface 2121.
- the outer ring edge 2121a ensures the first lens 21 can be stably fixed on the inner wall surface 111.
- the stray light avoids the second inclined surface 114 and is directed to the first inclined surface 113, the stray light is largely guaranteed to be reflected on the support portion 212 without affecting the optical portion
- the imaging performance of 211, and the reflection trend of stray light are shown in Figure 2 and Figure 4.
- the connecting line connecting the first inclined surface 113 and the second inclined surface 114 is at the same height as the height bisector of the top wall 11 of the lens barrel, that is, the first inclined surface 113 It is substantially the same as the height of the second inclined surface 114.
- first inclined surface 113 and the inner wall surface 111 are connected by a curved transition, and the first inclined surface 113 is smoothly transitioned to the inner wall surface 111, so that the structure of the top wall 11 of the lens barrel is easy to process, and burrs are not easy to generate, and it prevents the top of the lens barrel from being assembled during assembly.
- the wall 11 causes scratches on the lens assembly 20.
- This embodiment also provides a terminal device.
- the terminal device includes the aforementioned lens module, so that the terminal has the performance of the aforementioned lens module. Therefore, the terminal device has a good shooting effect and can satisfy people's shooting performance of the terminal device. Requirements.
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- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
一种镜头模组及终端设备，涉及光学镜头的技术领域，包括：镜筒（10）和收容于镜筒（10）内的镜片组件（20）；镜筒（10）包括具有通光孔（11a）的镜筒顶壁（11）和围设在镜筒顶壁（11）上的镜筒侧壁（12），镜筒顶壁（11）包括用于承载镜片组件（20）的内壁面（111）、与内壁面（111）相对的外壁面（112）、以及连接在内壁面（111）与外壁面（112）之间的第一斜面（113），镜筒顶壁（11）还包括连接在第一斜面（113）与外壁面（112）之间的第二斜面（114），第一斜面（113）自第二斜面（114）的远离外壁面（112）的一端沿远离通光孔（11a）的中心轴线的方向向内壁面（111）倾斜延伸。解决了现有技术中镜头模组容易产生杂光、影响拍摄效果的技术问题。
Description
本实用新型涉及光学镜头技术领域，尤其涉及一种镜头模组及终端设备。
随着科技的不断发展，电子设备不断朝着智能化发展，除了数码相机外，便携式电子设备例如平板电脑、手机等也配备拍照摄像功能的镜头模组，以满足用户随时拍照的需要。同时，为了提高屏占比，使用光阑前置的结构，减小视场深度（CVD），从而减小开孔大小，现有技术中的镜头模组采用光阑前置的结构，光阑距离镜片较远，包括具有通光孔的镜筒和收容在镜筒内的镜片组件，镜片组件所对应的通光孔的孔壁只设置一个斜面，镜头模组在拍摄时很容易产生杂光，进而影响拍摄效果。
因此，有必要提供一种镜头模组。
本实用新型的目的在于提供一种镜头模组及终端设备，以解决现有技术中镜头模组容易产生杂光、影响拍摄效果的技术问题。
本实用新型的技术方案如下：
一种镜头模组，包括：镜筒和收容于所述镜筒内的镜片组件；所述镜筒包括具有通光孔的镜筒顶壁和围设在所述镜筒顶壁上的镜筒侧壁，所述镜筒顶壁包括用于承载所述镜片组件的内壁面、与所述内壁面相对的外壁面、以及连接在所述内壁面与所述外壁面之间的第一斜面，所述镜筒顶壁还包括连接在所述第一斜面与所述外壁面之间的第二斜面，所述第一斜面自所述第二斜面的远离所述外壁面的一端沿远离所述通光孔的中心轴线的方向向所述内壁面倾斜延伸。
进一步地，在包含所述通光孔的中心轴线的截面上，所述第二斜面与所述通光孔的中心轴线形成的夹角大于所述第一斜面与所述通光孔的中心轴线形成的夹角。
进一步地，所述镜片组件包括靠近物侧的第一镜片，所述第一镜片包括用于成像的光学部和环绕所述光学部设置的支撑部，所述第二斜面平行于所述光学部在与所述支撑部相接处的切线。
进一步地，在平行于所述通光孔的中心轴线的方向上，所述第一斜面和所述第二斜面相接的相接线与所述镜筒顶壁的高度平分线位于同一高度。
进一步地，支撑部包括与内壁面抵接的支撑面，所述支撑面为环形面，所述支撑面包括靠近所述光学部的内环边和靠近所述镜筒侧壁的外环边，自所述第一斜面与所述第二斜面相接的相接线沿与所述通光孔的中心轴线平行的方向在所述支撑面上的投影到所述内环边的距离等于到所述外环边的距离。
进一步地，所述第一斜面与所述内壁面通过曲面过渡连接。
进一步地， 一种终端设备，所述终端设备包括如前述的镜头模组。
本实用新型的有益效果在于：通过在外壁面与第一斜面之间设置第二斜面，且第一斜面自第二斜面的远离外壁面的一端沿远离通光孔的中心轴线的方向向内壁面倾斜延伸，即第二斜面相对第一斜面朝向通光孔凸出一段距离，在拍摄时，第二斜面至少可以部分拦截杂光。运用本技术方案，解决了现有技术中镜头模组容易产生杂光、影响拍摄效果的技术问题。
图1为现有技术中镜头模组的结构示意；
图2为本实用新型实施例中一种镜头模组的结构示意图；
图3镜筒的结构示意图；
图4为图2中C处的局部放大图。
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本实用新型。
应该指出，以下详细说明都是例示性的，旨在对本申请提供进一步的说明。除非另有指明，本文使用的所有技术和科学术语具有与本申请所属技术领域的普通技术人员通常理解的相同含义。
需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本申请的示例性实施方式。如在这里所使用的，除非上下文另外明确指出，否则单数形式也意图包括复数形式，此外，还应当理解的是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、操作、器件、组件和/或它们的组合。
图1为现有技术中镜头模组的结构示意图，具体参见图1，该镜头模组包括镜头10和收容于镜筒10内的镜片组件20，镜筒10包括具有通光孔11a的镜筒顶壁11和围设在镜筒顶壁11上的镜筒侧壁12，镜筒顶壁11包括用于承载镜片组件20的内壁面111、与内壁面111相对的外壁面112、以及连接在内壁面111与外壁面112之间的斜面113’。当镜头模组采用光阑前置的结构时，光阑距离镜片较远，杂光光线容易受斜面113’的反射进入镜片组件20中，从而影响镜片组件20的成像效果，导致拍摄效果不佳。
下面结合附图和实施方式对本实用新型作进一步说明。参见图2-图4，一种镜头模组，包括：镜筒10和收容于镜筒10内的镜片组件20；镜筒10包括具有通光孔11a的镜筒顶壁11和围设在镜筒顶壁11上的镜筒侧壁12，镜筒顶壁11包括用于承载镜片组件20的内壁面111、与内壁面111相对的外壁面112、以及连接在内壁面111与外壁面112之间的第一斜面113，镜筒顶壁11还包括连接在第一斜面113与外壁面112之间的第二斜面114，第一斜面113自第二斜面114的远离所述外壁面112的一端沿远离通光孔11a的中心轴线的方向向内壁面111倾斜延伸。
在本实用新型的技术方案中，通过在外壁面112与第一斜面113之间设置第二斜面114，且第一斜面113自第二斜面114的远离外壁面112的一端沿远离通光孔11a的中心轴线的方向向内壁面111倾斜延伸，第二斜面114不容易反射杂散光，第一斜面113自第二斜面114向外凹陷，当有光照射到第一斜面113时，光线被反射到镜片的支撑部212，不会造成杂散光。运用本技术方案，解决了现有技术中镜头模组容易产生杂光、影响拍摄效果的技术问题。
进一步地，在包含通光孔11a的中心轴线的截面上，第二斜面114与通光孔11a的中心轴线形成的夹角大于第一斜面113与通光孔11a的中心轴线形成的夹角。第二斜面114的倾斜角度越大，其对杂光的避让能力越强，因而一部分杂光被第二斜面114避让；同时由于第一斜面113的倾斜角度小于第二斜面114的倾斜角度，第一斜面113与镜片组件20之间的距离大于第二斜面114与镜片组件20之间的距离，因而当一部分杂光避过第二斜面114射向第一斜面113时，其杂光反射的范围强度都较小，集中在镜片的支撑部212，对镜片组件20的成像影响较小。
镜片组件20包括靠近物侧的第一镜片21，当然镜片组件20还包括自第一镜片21往像侧方向依次设置的多组镜片，第一镜片21包括用于成像的光学部211和环绕光学部211设置的支撑部212。优选地，对第二斜面114的倾斜角度进行设置，使第二斜面114平行于光学部211在与支撑部212相接处的切线。对第二斜面114的倾斜角度、倾斜范围设置以确保第二斜面114能避让杂光，同时不遮挡镜片组件20、不影响镜片组件20的成像效果。
进一步地，支撑部212包括与内壁面111抵接的支撑面2121，支撑面2121为环形面，包括靠近光学部211的内环边2121a和靠近镜筒侧壁12的外环边2121b，自第一斜面113与第二斜面114相接的相接线沿与通光孔11a的中心轴线平行的方向在支撑面2121上的投影到内环边2121a的距离等于到外环边2121b的距离。即第一斜面113与第二斜面114相接的相接线位于支撑面2121中部上方，意味着第一斜面113的正投影不超过支撑面2121的中线，一方面外环边2121a保证了第一镜片21可以稳定的固定在内壁面111上，另一方面，当杂光避过第二斜面114射向第一斜面113时，大限度的保证其杂光反射到支撑部212上，不影响光学部211的成像性能，其杂光的反射走向具体参见图2、图4。
优选地，在平行于通光孔11a的中心轴线的方向上，第一斜面113和第二斜面114相接的相接线与镜筒顶壁11的高度平分线位于同一高度,即第一斜面113与第二斜面114的高度基本一致。
进一步地，第一斜面113与内壁面111通过曲面过渡连接，从第一斜面113圆滑过渡到内壁面111，使得镜筒顶壁11的结构易于加工，不易产生毛刺，防止在组装时镜筒顶壁11对镜片组件20造成刮伤。
本实施例还提供了一种终端设备，该终端设备包括如前述的镜头模组，从而该终端具有前述镜头模组的性能，因而该终端设备的拍摄效果良好，能够满足人们对终端设备拍摄性能的要求。
以上的仅是本实用新型的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本实用新型创造构思的前提下，还可以做出改进，但这些均属于本实用新型的保护范围。
Claims (7)
- 一种镜头模组，包括：镜筒和收容于所述镜筒内的镜片组件；所述镜筒包括具有通光孔的镜筒顶壁和围设在所述镜筒顶壁上的镜筒侧壁，所述镜筒顶壁包括用于承载所述镜片组件的内壁面、与所述内壁面相对的外壁面、以及连接在所述内壁面与所述外壁面之间的第一斜面，其特征在于，所述镜筒顶壁还包括连接在所述第一斜面与所述外壁面之间的第二斜面，所述第一斜面自所述第二斜面的远离所述外壁面的一端沿远离所述通光孔的中心轴线的方向向所述内壁面倾斜延伸。
- 根据权利要求1所述的镜头模组，其特征在于，在包含所述通光孔的中心轴线的截面上，所述第二斜面与所述通光孔的中心轴线形成的夹角大于所述第一斜面与所述通光孔的中心轴线形成的夹角。
- 根据权利要求2所述的镜头模组，其特征在于，所述镜片组件包括靠近物侧的第一镜片，所述第一镜片包括用于成像的光学部和环绕所述光学部设置的支撑部，所述第二斜面平行于所述光学部在与所述支撑部相接处的切线。
- 根据权利要求3所述的镜头模组，其特征在于，在平行于所述通光孔的中心轴线的方向上，所述第一斜面和所述第二斜面相接的相接线与所述镜筒顶壁的高度平分线位于同一高度。
- 根据权利要求4所述的镜头模组，其特征在于，支撑部包括与内壁面抵接的支撑面，所述支撑面为环形面，所述支撑面包括靠近所述光学部的内环边和靠近所述镜筒侧壁的外环边，自所述第一斜面与所述第二斜面相接的相接线沿与所述通光孔的中心轴线平行的方向在所述支撑面上的投影到所述内环边的距离等于到所述外环边的距离。
- 根据权利要求5所述的镜头模组，其特征在于，所述第一斜面与所述内壁面通过曲面过渡连接。
- 一种终端设备，其特征在于，所述终端设备包括如权利要求1-6中任一项所述的镜头模组。
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| CN102749694A (zh) * | 2011-04-19 | 2012-10-24 | 鸿富锦精密工业（深圳）有限公司 | 镜头结构 |
| CN206339746U (zh) * | 2016-12-10 | 2017-07-18 | 瑞声科技(新加坡)有限公司 | 镜头模组 |
| CN107329349A (zh) * | 2017-07-07 | 2017-11-07 | 瑞声科技(新加坡)有限公司 | 一种成像镜头 |
| CN208156277U (zh) * | 2018-05-18 | 2018-11-27 | 南昌欧菲精密光学制品有限公司 | 镜片组及镜头模组 |
| CN110361910A (zh) * | 2019-08-20 | 2019-10-22 | 浙江舜宇光学有限公司 | 一种镜头 |
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| KR20070101125A (ko) * | 2006-04-11 | 2007-10-16 | 치코니 일렉트로닉스 씨오., 엘티디. | 카메라 렌즈 모듈 및 그 제조 방법 |
| CN102749694A (zh) * | 2011-04-19 | 2012-10-24 | 鸿富锦精密工业（深圳）有限公司 | 镜头结构 |
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