WO2021097881A1 - 镜头模组 - Google Patents
镜头模组 Download PDFInfo
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- WO2021097881A1 WO2021097881A1 PCT/CN2019/121380 CN2019121380W WO2021097881A1 WO 2021097881 A1 WO2021097881 A1 WO 2021097881A1 CN 2019121380 W CN2019121380 W CN 2019121380W WO 2021097881 A1 WO2021097881 A1 WO 2021097881A1
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- lens
- wall
- light
- hole
- lens module
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
-
- 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
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B11/00—Filters or other obturators specially adapted for photographic purposes
Definitions
- This application relates to the field of optical imaging technology, and in particular to a lens module.
- lenses are widely used in electronic devices in various fields.
- the lens module in the prior art is prone to Flare (flare) problems during the imaging process. Therefore, the traditional lens module needs to use shading parts between the lenses to improve the glare phenomenon, but shading parts are arranged between the lenses. This leads to a complex structure of the lens module, which increases production cost and assembly difficulty. Therefore, it is necessary to provide a lens module to solve the above-mentioned problems.
- the purpose of this application is to provide a lens module, which aims to solve the problem of traditional lens modules that need to provide shading parts between the lenses in order to improve the glare phenomenon, resulting in a complex structure of the lens module, high production cost, and relatively difficult assembly. Big problem.
- a lens module including:
- a lens barrel the lens barrel includes an inner wall surrounding a accommodating cavity and an outer wall opposite to the inner wall;
- the lens assembly includes a first lens arranged in the accommodating cavity, the first lens including an object side surface close to the object side, an image side surface close to the image side, and a side wall connecting the object side surface and the image side surface, An injection groove is opened on the side wall, and the injection groove is enclosed with the inner wall to form an injection space for accommodating the light-absorbing material.
- the accommodating cavity includes a light-passing hole and a mounting hole that are connected in sequence, and the inner diameter of the light-passing hole is smaller than the inner diameter of the mounting hole;
- the inner wall includes a first hole wall and a second hole wall. The first hole wall encloses the light-passing hole, the second hole wall encloses the installation hole, and the second hole wall encloses the injection groove to form the injection space.
- the first lens includes an imaging part and a connecting part, the connecting part is arranged around the imaging part, and the side wall is located on a side of the connecting part away from the imaging part, the imaging part Protruding toward the object side and extending into the light-passing hole.
- the second lens is connected to the lens barrel, and the second lens abuts against the connecting portion.
- the inner wall further includes a connecting surface, the connecting surface is respectively connected to the first hole wall and the second hole wall, and a side of the connecting portion away from the image side abuts against the connecting surface .
- the injection groove is a spiral groove, and the central axis of the spiral groove coincides with the central axis of the lens barrel.
- the injection groove is an annular groove, and the extending direction of the axis of the annular groove is from the object side to the image side.
- the number of the annular grooves is at least two, and the at least two annular grooves are sequentially spaced from the object side to the image side.
- the light-absorbing material is any one or a combination of the following: carbon black, graphite.
- the lens module by opening the injection groove on the first lens, the light-absorbing material can be injected into the injection groove.
- the light-absorbing material can absorb the stray light entering the lens barrel through the light hole. Therefore, the problem of glare caused by the lens module during imaging is avoided, and there is no need to arrange a light shielding part between the first lens and the second lens.
- the lens module has a simple structure and a good use effect.
- Figure 1 is a front cross-sectional view of the application
- Figure 2 is an enlarged view of part A in Figure 1;
- FIG. 3 is a schematic diagram of the structure of the first lens of the application.
- the present application provides a lens module, as shown in FIG. 1, which includes a lens barrel 100 and a lens assembly 200.
- the lens barrel 100 is used as a carrier substrate of the lens module for mounting the lens assembly 200.
- the cross section of the lens barrel 100 may be Any one or a combination of the following: circular, polygonal, and the cross-section of the lens assembly 200 is the same as that of the lens barrel 100, so that the lens barrel 100 and the lens assembly 200 fit together, the installation state of FIG. 1, the object side is located The upper side of the lens barrel 100 and the image side are located on the lower side of the lens barrel 100.
- the lens barrel 100 includes an inner wall 120 surrounding the accommodating cavity 110 and an outer wall 130 opposite to the inner wall 120;
- the lens assembly 200 includes a first lens 210 disposed in the accommodating cavity 110, and the first lens 210 includes an object side The side wall of the object, the image side near the image side and the side wall of the connecting object and the side wall 213 of the image side.
- the side wall 213 is provided with an injection groove 221.
- the injection groove 221 and the inner wall 120 are enclosed to form an injection space 220 to accommodate the light-absorbing material .
- the light-absorbing material can be injected into the injection groove 221.
- the light-absorbing material can absorb the light-absorbing material into the lens barrel through the light-passing hole 111 100 stray light, so as to avoid the problem of glare during imaging of the lens module, and there is no need to provide a shading part between the first lens 210 and the second lens 230.
- the lens module has a simple structure and good use effect.
- the accommodating cavity 110 includes a light-passing hole 111 and a mounting hole 112 connected in sequence.
- the inner diameter of the light-passing hole 111 is smaller than the inner diameter of the mounting hole 112;
- the inner wall 120 includes a first hole wall 121 and a second hole wall 122.
- the first hole The wall 121 encloses a light hole 111
- the second hole wall 122 encloses a mounting hole 112
- the second hole wall 122 encloses the injection groove 221 to form an injection space 220.
- the side wall 213 can be matched with the second hole wall 122 to form an injection space 220 for injecting light-absorbing material; the light passes through the first hole
- the light-passing hole 111 formed by the wall 121 then enters the first lens 210, and the first lens 210 transmits the refracted light in the direction from the object side to the image side.
- the first lens 210 includes an imaging portion 211 and a connecting portion 212.
- the connecting portion 212 is arranged around the imaging portion 211, and the side wall 213 is located on the side of the connecting portion 212 away from the imaging portion 211, and the imaging portion 211 is convex toward the object side. Extend into the light-passing hole 111.
- the injection groove 221 is provided on the side of the connecting portion 212 away from the optical axis 300, so that the injection groove 221 can be enclosed with the second hole wall 122 to form an injection space 220 to Accommodating the light-absorbing material; after the first lens 210 is installed in the mounting hole 112, the first lens 210 can be adjusted in the radial direction of the optical axis 300 through the cooperation of the first hole wall 121 and the outer wall 130 of the first lens 210 Limit.
- the second lens 230 is connected to the lens barrel 100, and the second lens 230 abuts on the connecting portion 212. Specifically, after the first lens 210 is installed in the lens barrel 100, the second lens 230 is installed in the accommodating cavity 110 in the direction from the image side to the object side, and the second lens 230 is kept away from the end surface of the image side and the connecting portion 212. Contact, so that the movement of the first lens 210 in the extension direction of the optical axis is limited by the second lens 230, so that the first lens 210 is fixed in the lens barrel 100; by setting the first lens 210 in two directions The first lens 210 is stably installed in the lens barrel 100 to stabilize the structure of the lens module.
- connection method of the second lens 230 and the lens barrel 100 is any one of the following: bonding or interference fit; the second lens 230 can be fixedly connected to the lens barrel 100 through the above-mentioned connection method, so that the first lens 230 can be fixedly connected to the lens barrel 100.
- the lens 210 is stably installed in the lens barrel 100.
- the inner wall 120 further includes a connecting surface 123, the connecting surface 123 is respectively connected to the first hole wall 121 and the second hole wall 122, and the side of the connecting portion 212 away from the image side abuts against the connecting surface 123.
- the second lens 230 is placed in the accommodating cavity 110 from the image side to the object side, and abuts against the first lens 210 far from the object side through the second lens 230.
- the first lens 210 can be fixed in the accommodating cavity 110.
- the injection groove 221 is a spiral groove, and the central axis of the spiral groove extends in the direction from the object side to the image side.
- the light-absorbing material can flow in the spiral groove to extend the residence time of the light-absorbing material in the injection groove 221, so that the light-absorbing material can be solidified in the injection groove 221 and attached to the first lens 210 to achieve the function of the first lens 210 to absorb stray light.
- the injection groove 221 is an annular groove, and the extending direction of the axis of the annular groove is from the object side to the image side.
- the first lens 210 can also have the function of absorbing stray light, which is not limited here.
- the number of the annular grooves is at least two, and the at least two annular grooves are sequentially spaced from the object side to the image side.
- the above-mentioned light-absorbing material is any one or a combination of the following: carbon black, graphite.
- carbon black any one or a combination of the following: carbon black, graphite.
- black carbon black and graphite materials as light-absorbing materials can further improve the stray light absorption effect of the lens module, so that the lens module has a good imaging effect.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
一种镜头模组，包括镜筒（100）和镜片组件（200）。镜筒（100）包括围设成容纳腔（110）的内壁（120）及与内壁（120）相对的外壁（130）。镜片组件（200）包括设置于容纳腔（110）内的第一镜片（210），第一镜片（210）包括靠近物侧的物侧面、靠近像侧的像侧面及连接物侧面与像侧面的侧壁（213），侧壁（213）上开设有注料槽（221），注料槽（221）与内壁（120）围合形成注料空间（220）以容纳吸光材料。通过在第一镜片（210）上开设注料槽（221），即可将吸光材料注入注料槽（221）中。镜头模组在使用时，吸光材料可以吸收由通光孔（111）进入镜筒（100）的杂光，从而避免镜头模组在成像时产生眩光的问题，无需在第一镜片（210）与第二镜片（230）之间设置遮光部件，结构简单，使用效果好。
Description
本申请涉及光学成像技术领域，尤其涉及一种镜头模组。
随着镜头技术的发展，镜头大量地应用于各个领域的电子设备中。
现有技术中的镜头模组在成像过程中，容易产生Flare（眩光）问题，因此，传统的镜头模组需要使用在镜片之间设置遮光部件，以改善眩光现象，但是镜片之间设置遮光部件会导致镜头模组的结构复杂，增加生产成本和组装难度。因此，有必要提供一种镜头模组以解决上述问题。
本申请的目的在于提供一种镜头模组，旨在解决传统的镜头模组为改善眩光现象，需要在镜片之间设置遮光部件，从而导致镜头模组结构复杂，生产成本较高，组装难度较大的问题。
本申请的技术方案如下：
一种镜头模组，包括：
镜筒，所述镜筒包括围设成容纳腔的内壁及与所述内壁相对的外壁；以及
镜片组件，包括设置于所述容纳腔内的第一镜片，所述第一镜片包括靠近物侧的物侧面、靠近像侧的像侧面及连接所述物侧面与所述像侧面的侧壁，所述侧壁上开设有注料槽，所述注料槽与所述内壁围合形成注料空间以容纳吸光材料。
可选地，所述容纳腔包括依次连通的通光孔和安装孔，所述通光孔的内径小于所述安装孔的内径；所述内壁包括第一孔壁和第二孔壁，所述第一孔壁围成所述通光孔，所述第二孔壁围成所述安装孔，所述第二孔壁与所述注料槽围合形成所述注料空间。
可选地，所述第一镜片包括成像部和连接部，所述连接部环绕所述成像部设置，且所述侧壁位于所述连接部远离所述成像部的一侧，所述成像部朝物侧凸起并伸入所述通光孔中。
可选地，所述第二镜片连接于所述镜筒，且所述第二镜片抵接于所述连接部。
可选地，所述内壁还包括连接面，所述连接面分别连接于所述第一孔壁和所述第二孔壁，所述连接部远离像侧的一侧抵接于所述连接面。
可选地，所述注料槽为螺旋槽，且所述螺旋槽的中心轴与所述镜筒的中心轴重合。
可选地，所述注料槽为环形槽，且所述环形槽的轴线的延伸方向沿物侧至像侧。
可选地，所述环形槽的数目至少为两个，且至少两个的所述环形槽沿物侧至像侧的方向依次间隔设置。
可选地，所述吸光材料为以下任意一者或其组合：炭黑、石墨。
本申请的有益效果在于：
上述镜头模组，通过在第一镜片上开设注料槽，即可将吸光材料注入注料槽中，该镜头模组在使用时，吸光材料可以吸收由通光孔进入镜筒的杂光，从而避免镜头模组在成像时产生眩光的问题，无需在第一镜片与第二镜片之间设置遮光部件，本镜头模组结构简单，使用效果好。
图1为本申请的主视剖视图；
图2为图1中局部A的放大视图；
图3为本申请的第一镜片的结构示意图。
下面结合附图和实施方式对本申请作进一步说明。
本申请提供一种镜头模组，如图1所示，其包括镜筒100和镜片组件200，镜筒100作为镜头模组的承载基体用于安装镜片组件200，镜筒100的横截面可以为以下任意一者或其结合：圆形、多边形，同时镜片组件200的横截面与镜筒100相同，以使镜筒100与镜片组件200相适配，安装图1的摆放状态，物侧位于镜筒100的上侧，像侧位于镜筒100的下侧。
具体的，镜筒100包括围设成容纳腔110的内壁120及与内壁120相对的外壁130；镜片组件200包括设置于容纳腔110内的第一镜片210，第一镜片210包括靠近物侧的物侧面、靠近像侧的像侧面及连接物侧面与像侧面的侧壁213，侧壁213上开设有注料槽221，注料槽221与内壁120围合形成注料空间220以容纳吸光材料。
上述镜头模组，通过在第一镜片210上开设注料槽221，即可将吸光材料注入注料槽221中，该镜头模组在使用时，吸光材料可以吸收由通光孔111进入镜筒100的杂光，从而避免镜头模组在成像时产生眩光的问题，无需在第一镜片210与第二镜片230之间设置遮光部件，本镜头模组结构简单，使用效果好。
具体的，容纳腔110包括依次连通的通光孔111和安装孔112，通光孔111的内径小于安装孔112的内径；内壁120包括第一孔壁121和第二孔壁122，第一孔壁121围成通光孔111，第二孔壁122围成安装孔112，第二孔壁122与注料槽221围合形成注料空间220。
在本实施例中，第一镜片210插设在安装孔112内之后，侧壁213即可与第二孔壁122相配合，以形成注料空间220并用于注入吸光材料；光线通过第一孔壁121形成的通光孔111之后进入第一镜片210，第一镜片210将折射之后的光线沿物侧至像侧的方向传输。
具体的，第一镜片210包括成像部211和连接部212，连接部212环绕成像部211设置，且侧壁213位于连接部212远离成像部211的一侧，成像部211朝物侧凸起并伸入通光孔111中。
如图1和图2所示，注料槽221设置在连接部212远离光轴300的一侧，由此注料槽221即可与第二孔壁122围合以形成注料空间220，以容纳吸光材料；当第一镜片210安装在安装孔112内之后，通过第一孔壁121与第一镜片210的外壁130的配合，可以对第一镜片210在光轴300的径向方向上进行限位。
如图1所示，第二镜片230连接于镜筒100，且第二镜片230抵接于连接部212。具体的，第一镜片210安装在镜筒100内之后，将第二镜片230沿像侧至物侧的方向安装至容纳腔110内，并使第二镜片230远离像侧的端面与连接部212抵接，从而通过第二镜片230对第一镜片210在光轴的延伸方向上的移动进行限位，以使第一镜片210固定在镜筒100内；通过对第一镜片210设置两个方向的限位，从而使第一镜片210稳定地安装在镜筒100内，以使镜头模组的结构稳定。
具体的，第二镜片230与镜筒100的连接方式为以下任意一者：粘接、过盈配合；通过上述的连接方式即可使第二镜片230与镜筒100固定连接，从而使第一镜片210稳定的安装在镜筒100内。
具体的，内壁120还包括连接面123，连接面123分别连接于第一孔壁121和第二孔壁122，连接部212远离像侧的一侧抵接于连接面123。
第一镜片210安装在安装孔112内之后，将第二镜片230沿像侧至物侧的方向置入容纳腔110内，并通过第二镜片230抵接于第一镜片210远离物侧的一侧，直到第一镜片210在物侧至像侧方向上的相对两端分别抵接于连接面123和第二镜片230，第一镜片210即可固定在容纳腔110内。
如图3所示，在一实施例中，注料槽221为螺旋槽，且螺旋槽中心轴线沿物侧至像侧的方向延伸。向螺旋槽中注入吸光材料时，吸光材料可在螺旋槽中流动，以延长吸光材料在注料槽221中的滞留时间，从而使吸光材料能够在注料槽221中凝固并附着在第一镜片210上，以实现第一镜片210吸收杂光的功能。
在另一实施例中，注料槽221为环形槽，且环形槽的轴线的延伸方向沿物侧至像侧。通过向环形槽中注入吸光材料，也可以使第一镜片210具有吸收杂光的功能，在此不做限定。
进一步的，环形槽的数目至少为两个，且至少两个的环形槽沿物侧至像侧的方向依次间隔设置。通过在第一镜片210沿光轴300的延伸方向设置多个环形槽，可以使第一镜片210具有多个吸收杂光的部位，从而进一步提高第一镜片210吸收杂光的效果。
具体的，上述吸光材料为以下任意一者或其组合：炭黑、石墨。采用黑色的炭黑、石墨材料作为吸光材料可以进一步提高本镜头模组吸收杂光的效果，从而使本镜头模组具有良好的成像效果。
以上所述的仅是本申请的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本申请创造构思的前提下，还可以做出改进，但这些均属于本申请的保护范围。
Claims (9)
- 一种镜头模组，其特征在于，包括：镜筒，所述镜筒包括围设成容纳腔的内壁及与所述内壁相对的外壁；以及镜片组件，包括设置于所述容纳腔内的第一镜片，所述第一镜片包括靠近物侧的物侧面、靠近像侧的像侧面及连接所述物侧面与所述像侧面的侧壁，所述侧壁上开设有注料槽，所述注料槽与所述内壁围合形成注料空间以容纳吸光材料。
- 根据权利要求1所述的镜头模组，其特征在于，所述容纳腔包括依次连通的通光孔和安装孔，所述通光孔的内径小于所述安装孔的内径；所述内壁包括第一孔壁和第二孔壁，所述第一孔壁围成所述通光孔，所述第二孔壁围成所述安装孔，所述第二孔壁与所述注料槽围合形成所述注料空间。
- 根据权利要求2所述的镜头模组，其特征在于，所述第一镜片包括成像部和连接部，所述连接部环绕所述成像部设置，且所述侧壁位于所述连接部远离所述成像部的一侧，所述成像部朝物侧凸起并伸入所述通光孔中。
- 根据权利要求3所述的镜头模组，其特征在于，所述镜片组件还包括第二镜片，所述第二镜片连接于所述镜筒，且所述第二镜片抵接于所述连接部。
- 根据权利要求3所述的镜头模组，其特征在于，所述内壁还包括连接面，所述连接面分别连接于所述第一孔壁和所述第二孔壁，所述连接部远离像侧的一侧抵接于所述连接面。
- 根据权利要求1所述的镜头模组，其特征在于，所述注料槽为螺旋槽，且所述螺旋槽的中心轴与所述镜筒的中心轴重合。
- 根据权利要求1所述的镜头模组，其特征在于，所述注料槽为环形槽，且所述环形槽的轴线的延伸方向沿物侧至像侧。
- 根据权利要求7所述的镜头模组，其特征在于，所述环形槽的数目至少为两个，且至少两个的所述环形槽沿物侧至像侧的方向依次间隔设置。
- 根据权利要求1-8任意一项所述的镜头模组，其特征在于，所述吸光材料为以下任意一者或其组合：炭黑、石墨。
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| JP2012185240A (ja) * | 2011-03-03 | 2012-09-27 | Fujifilm Corp | レンズアレイ、レンズアレイの製造方法、及びレンズモジュールの製造方法 |
| CN206362994U (zh) * | 2016-12-30 | 2017-07-28 | 上饶市宇瞳光学有限公司 | 镜片及采用该镜片的摄像镜头 |
| CN206671646U (zh) * | 2017-04-15 | 2017-11-24 | 瑞声科技(新加坡)有限公司 | 镜片组件以及镜头模组 |
| CN207528948U (zh) * | 2017-10-25 | 2018-06-22 | 瑞声科技(新加坡)有限公司 | 一种玻璃镜片及镜头模组 |
| CN209387904U (zh) * | 2018-12-30 | 2019-09-13 | 瑞声科技(新加坡)有限公司 | 玻璃镜片及镜头模组 |
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| JPH08262204A (ja) * | 1995-03-20 | 1996-10-11 | Nikon Corp | 一体成形レンズ |
| CN101441283A (zh) * | 2007-11-20 | 2009-05-27 | 鸿富锦精密工业（深圳）有限公司 | 塑胶镜片及其制造方法 |
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| CN209387904U (zh) * | 2018-12-30 | 2019-09-13 | 瑞声科技(新加坡)有限公司 | 玻璃镜片及镜头模组 |
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