WO2021163850A1 - 镜头、镜头模组以及移动终端 - Google Patents

镜头、镜头模组以及移动终端 Download PDF

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Publication number
WO2021163850A1
WO2021163850A1 PCT/CN2020/075577 CN2020075577W WO2021163850A1 WO 2021163850 A1 WO2021163850 A1 WO 2021163850A1 CN 2020075577 W CN2020075577 W CN 2020075577W WO 2021163850 A1 WO2021163850 A1 WO 2021163850A1
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WO
WIPO (PCT)
Prior art keywords
lens
lens barrel
lenses
circuit board
cover portion
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Application number
PCT/CN2020/075577
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English (en)
French (fr)
Inventor
黄振棠
林宗瑜
Original Assignee
南昌欧菲光电技术有限公司
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Application filed by 南昌欧菲光电技术有限公司 filed Critical 南昌欧菲光电技术有限公司
Priority to PCT/CN2020/075577 priority Critical patent/WO2021163850A1/zh
Publication of WO2021163850A1 publication Critical patent/WO2021163850A1/zh

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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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets

Definitions

  • the present disclosure relates to the field of camera technology, and in particular to a lens, a lens module and a mobile terminal.
  • the lens module is a component with camera function, which is widely used in electronic products such as mobile phones, tablet computers, electronic watches and so on. higher requirement.
  • the infrared filter film is vapor-deposited into a lens to reduce the thickness of the lens module.
  • the plastic lens cannot withstand high temperatures for a long time, and there are many The layer-distilled coating is likely to cause the problem of light dispersion, which affects the quality of imaging.
  • the present disclosure aims to solve at least one of the technical problems existing in the prior art. For this reason, the present disclosure proposes a lens, which can reduce the thickness of the lens while ensuring the imaging quality.
  • the present disclosure also proposes a lens module with the above lens.
  • the present disclosure also proposes a mobile terminal with the above-mentioned lens module.
  • a lens according to an embodiment of the first aspect of the present disclosure includes a lens barrel and a coated lens group, the lens barrel defines an accommodating space, and one end of the accommodating space is opened to form a lighting port;
  • the coated lens group includes: A plurality of lenses and a plurality of infrared filter films, wherein the plurality of lenses are located in the containing space and are arranged in sequence along the axial direction of the lens barrel; and the plurality of infrared filter films are scattered on the plurality of lenses At least two of the surfaces.
  • the lens of the embodiment of the present disclosure by dispersing and distilling the infrared filter film on multiple lenses, the high-temperature evaporation time of a single plastic lens can be reduced. In this way, the problem of dispersion and thermal deformation is reduced, and the lens is protected. Image quality and effectively reduce the thickness of the lens.
  • the number of the lenses is more than two, and the infrared filter film is distributed at least on the surface of the lens closest to the daylighting port and the one that is farthest from the daylighting port. The surface of the lens. In this way, the imaging quality of the lens can be improved.
  • the lens module according to the embodiment of the second aspect of the present disclosure includes: a lens, a cover portion, a circuit board, and a photosensitive chip.
  • the cover portion is connected to the lens barrel; a circuit board, the cover portion is disposed on the circuit board and connected to the circuit board; further comprising a photosensitive chip, the photosensitive chip is mounted on the circuit board and It is located in the space defined by the circuit board and the cover portion.
  • a part of the side wall of the lens barrel extends into the cover portion, and at least one lens is installed in the side wall of the lens barrel that extends into the cover portion.
  • the lens can be more firmly fixed on the lens barrel, and the distance between the lens and the photosensitive chip can be reduced, and the imaging quality of the lens module and the signal transmission efficiency can be improved.
  • the number of lenses projecting into the cover portion is one and an infrared filter film is provided, and the infrared filter film is provided at the lens projecting into the cover portion close to the photosensitive film.
  • One side surface of the chip which can improve the imaging quality of the lens module.
  • the cover portion has a window opposite to the lens barrel, the lens barrel covers the window, and a part of the lenses in the coated lens group is disposed in the cover portion and is in contact with the lens barrel.
  • the windows are arranged oppositely, and the photosensitive chip is arranged in the cover part. This setting can improve the imaging quality of the lens module, and the reliability of the lens module is high.
  • the circuit board is connected to one end of the cover portion, and the other end of the cover portion away from the circuit board has a mounting protrusion, and the window is formed on the mounting protrusion
  • a mounting groove is formed on the inner side of the mounting protrusion, one of the lenses is installed in the mounting groove, and the lens barrel is connected to the mounting protrusion, thereby improving the structural reliability of the lens module and reducing The thickness of the lens module.
  • the infrared filter film is provided on the surface of the lens installed in the mounting groove close to the photosensitive chip, so as to more effectively improve the imaging quality of the lens module.
  • the lens module further includes a motor connected to the cover portion, and the motor is sleeved on the lens barrel and is used to drive the lens barrel along an axis. To move. By setting the motor, the lens barrel and the lens in the lens barrel can be driven to move to complete focusing.
  • the cover portion is formed with a mounting convex portion at the window, the motor is provided with a mounting concave portion, and the mounting convex portion is fitted in the mounting concave portion, so that the cover portion can be effectively realized
  • the installation and positioning between the motor and the motor can effectively reduce the difficulty of installing the motor and improve the installation efficiency of the lens module.
  • the mobile terminal according to the embodiment of the third aspect of the present disclosure includes the lens module according to the embodiment of the second aspect of the present disclosure.
  • the mobile terminal has a good imaging effect and can be thinner and lighter.
  • FIG. 1 is a schematic diagram of a lens module according to the first embodiment of the embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of a coated lens group according to an alternative embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of a lens module according to the second embodiment of the embodiment of the present disclosure.
  • Fig. 4 is a schematic diagram of a lens module according to a third embodiment of the present disclosure.
  • Lens 100 Lens module 200;
  • Lens tube 10 accommodating space 11; daylighting port 111;
  • Coated lens group 20 lens 21; infrared filter film 22;
  • Cover 110 mounting protrusion 1102; mounting groove 1103; circuit board 120; photosensitive chip 130; motor 140; mounting recess 1401; window 151.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features. Further, in the description of the present disclosure, unless otherwise specified, “plurality” means two or more.
  • the lens 100 according to an embodiment of the first aspect of the present disclosure will be described below with reference to FIGS. 1 to 4.
  • the lens 100 includes a lens barrel 10 and a coated lens group 20.
  • the lens barrel 10 defines an accommodating space 11, one end of the accommodating space 11 is opened to form a lighting port 111, the coated lens group 20 includes a plurality of lenses 21 and a plurality of infrared filter films 22, and the plurality of lenses 21 are located in the accommodating space 11, and sequentially arranged along the axial direction of the lens barrel 10, a plurality of infrared filter films 22 are scattered on at least two of the surfaces of the plurality of lenses 21. 1, a plurality of lenses 21 are provided in the lens barrel 10, and light enters the lens 100 from the lighting port 111 along the arrangement direction of the plurality of lenses 21.
  • the infrared filter film 22 is dispersedly arranged on at least two of the surfaces of the plurality of lenses 21, and the lens 21 with an appropriate curvature and surface shape is selected through optical simulation for infrared light coating to reduce This solves the problem of lens dispersion and material thermal deformation in the related art, improves the imaging quality of the lens 100, and effectively reduces the thickness of the lens 100.
  • the infrared filter film 22 may be provided on the surface of the plurality of lenses 21 by distillation.
  • all lenses 21 in the lens barrel 10 may be coated to achieve a desired effect.
  • "plurality" means two or more.
  • the number of lenses 21 is more than two, and the infrared filter film 22 is distributed at least on the surface of a lens 21 close to the lighting port 111 and a surface of the lens 21 far away from the lighting port 111.
  • the infrared filter film 22 is distributed at least on The surface of the lens 21 closest to the daylighting port 111 and the surface of the lens 21 that is farthest from the daylighting port 111. In this way, the imaging quality of the lens 100 can be improved.
  • the lens module 200 includes the lens 100 according to the embodiment of the first aspect of the present disclosure, and further includes a cover portion 110, a circuit board 120, and a photosensitive chip 130, and the cover portion 110 is connected to the lens barrel 10;
  • the cover 110 is disposed on the circuit board 120 and connected to the circuit board 120.
  • the photosensitive chip 130 is mounted on the circuit board 120 and is located in the space defined by the circuit board 120 and the cover 110.
  • the photosensitive chip 130 is used to receive images, and the lens 21 and the photosensitive chip 130 close to the lighting opening 111 are arranged opposite to each other in the axial direction, so as to effectively filter the infrared light and improve the image quality.
  • the lens 21 can protect the photosensitive chip 130 from external interference.
  • the circuit board 120 can support and fix the cover 122 and the photosensitive chip 130, and can transmit electrical signals at the same time. This arrangement can improve the imaging quality of the lens module 200 and effectively reduce the thickness of the lens module 200.
  • the lens barrel 10 and the cover portion 110 are bonded by glue, and the cover portion 110 is bonded on the circuit board 120 by glue to make the lens module 200 structure stable and reliable.
  • the glue adopts low shrinkage UV glue (shadow glue).
  • UV glue is more energy-saving, environmentally friendly and efficient.
  • the structure of the lens module 200 bonded in this way is reliable, thereby improving the lens module 200 reliability. But it is not limited to this.
  • the inner surface of the lens barrel 10 has a plurality of stepped portions for fixing the lens 21, and the plurality of stepped portions can be matched with both ends of the plurality of lenses 21, so that the Each lens 21 is firmly fixed on the lens barrel 10.
  • a part of the side wall of the lens barrel 10 extends into the cover portion 110, and at least one lens 21 is installed on the side wall of the lens barrel 10 that extends into the cover portion 110 Inside.
  • This can increase the contact area between the lens 21 and the lens barrel 10, so that the lens 21 is more firmly fixed on the lens barrel 10, and this arrangement can reduce the distance between the lens 21 and the photosensitive chip 130, and at the same time can ensure that it is with the photosensitive chip.
  • the 130 is relatively set to filter the infrared light effectively, thereby improving the quality of imaging and the efficiency of signal transmission.
  • the lens 100 arranged in this way can play a role in preventing dust, and further improve the structural stability of the lens module 200.
  • the number of the lens 21 extending into the cover 110 is one, and an infrared filter film 22 is provided, and the infrared filter 22 is provided on the surface of the lens 21 that extends into the cover 110 close to the photosensitive chip 130. , In order to improve the imaging quality of the lens module 200.
  • the number of lenses 21 is six, and the six lenses 21 from top to bottom are the first lens 21, the second lens 21, the third lens 21, the fourth lens 21, and the fifth lens.
  • the lens 21 and the sixth lens 21, the sixth lens 21 is arranged at one end close to the photosensitive chip 130, and the outer surfaces of the second lens 21 and the fifth lens 21 on the side away from the circuit board 120 are respectively selected for low layer number IR (infrared) Coating, and selecting the outer surface of the remaining lens 21 on the side close to the circuit board 120 for low-layer IR coating, thereby enabling the lens module 200 to reduce lens dispersion problems and material thermal deformation problems in related technologies, and is effective The thickness of the lens module 200 is greatly reduced.
  • the cover 110 has a window 151 opposite to the lens barrel 10, the lens barrel 10 covers the window 151, and a part of the lens 21 of the coated lens group 20 is disposed in the cover 110 Moreover, the part of the lens 21 is arranged opposite to the window 151, the photosensitive chip 130 is arranged in the cover 110, and the photosensitive chip 130 faces the lighting opening 111 and is arranged opposite to the lighting opening 111 so that the photosensitive chip 130 can receive images.
  • the lens barrel 10 is bonded by glue, such as UV glue with low shrinkage. Therefore, the reliability of the lens module 200 can be improved.
  • one or more light-shielding sheets and fixing rings may be provided in the lens barrel 10, and the light-shielding sheets and the lighting opening 111 are arranged opposite to each other in the axial direction, which can play a role in preventing dust.
  • a fixing ring is arranged at the outermost end of the lens barrel 10 away from the lighting opening 111.
  • the fixing ring thus arranged can serve to fix the lens 21 in the lens barrel 10 on the one hand, and on the other hand, due to the fixing
  • the ring is ring-shaped, and the middle position can accommodate the convex curved surface of the lens 21, thereby improving the structural reliability of the lens module 200 and reducing the thickness of the lens module 200.
  • the circuit board 120 is connected to one end of the cover 110, and the other end of the cover 110 away from the circuit board 120 has a mounting protrusion 1102.
  • the window 151 is formed on the mounting protrusion 1102, and the mounting protrusion A mounting groove 1532 is formed inside the portion 1102, a lens 21 is mounted in the mounting groove 1532, and the lens barrel 10 is connected to the mounting convex portion 1102.
  • the circuit board 120 is disposed on the side of the cover 110 away from the window 151, and the circuit board 120 can transmit electrical signals, and can support and fix the lens barrel 10.
  • the lens 21 in the lens barrel 10 is disposed on the lens barrel 10 through the mounting groove 1532, and is opposite to the photosensitive chip 130 so as to improve the signal transmission efficiency.
  • an infrared filter film 22 is provided on the surface of the lens 21 installed in the mounting groove 1532 close to the photosensitive chip 130 to more effectively improve the imaging quality of the lens module 200 .
  • a plurality of lenses 21 may be provided in the lens barrel 10, and the infrared filter film 22 may be disposed on the lens 21 close to the photosensitive chip 130, and disposed on the outer surface of the lens 21 close to the photosensitive chip 130. On the side.
  • the infrared filter film 22 can be dispersed and distilled on the lens barrel 10 and the multiple lenses 21 in the cover 110, thereby reducing the problem of dispersion and thermal deformation of the material, and effectively reducing the thickness of the lens module 200.
  • the lens module 200 of this embodiment further adds a motor 140, a motor 140 and a cover part. 110 is connected, the motor 140 is sleeved on the lens barrel 10, and the motor 140 is used to drive the lens barrel 10 to move in the axial direction.
  • the motor 140 is used to drive the lens barrel 10 and the lens 21 in the lens barrel 10 to move in the direction of the optical axis (the optical axis is the center line of the light beam passing through the center point of the lens 100) to complete the focusing function.
  • the motor 140 and the cover 110 may be bonded and fixed by glue, such as UV glue with low shrinkage.
  • one or more light-shielding sheets and fixing rings may be provided in the lens barrel 10, and the light-shielding sheets and the lighting opening 111 are arranged opposite to each other in the axial direction, which can play a role in preventing dust.
  • a fixing ring is arranged at the outermost end of the lens barrel 10 away from the lighting opening 111.
  • the fixing ring thus arranged can serve to fix the lens 21 in the lens barrel 10 on the one hand, and on the other hand, due to the fixing
  • the ring is ring-shaped, and the middle position can accommodate the convex curved surface of the lens 21, thereby improving the structural reliability of the lens module 200 and reducing the thickness of the lens module 200.
  • the end of the cover 110 away from the circuit board 120 has a mounting protrusion 1102, the motor 140 is provided with a mounting recess 1401, and the mounting protrusion is fitted in the mounting recess 1401.
  • the cooperation of the two can effectively achieve The installation and positioning between the cover 110 and the motor 140 can effectively reduce the installation difficulty of the motor 140, and can improve the installation efficiency of the lens module 200.
  • the infrared filter film 22 can be dispersed and distilled on the lens barrel 10 and the multiple lenses 21 in the cover 110, thereby reducing the problem of dispersion and thermal deformation of the material, and effectively reducing the thickness of the lens module 200.
  • the mobile terminal according to the embodiment of the third aspect of the present disclosure includes the lens module 200 according to the embodiment of the above-mentioned first aspect of the present disclosure.

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Abstract

一种镜头(100)、镜头模组(200)以及移动终端，包括：镜筒(10)和镀膜镜片组(20)，镜筒(10)内限定出容纳空间(11)，容纳空间(11)的一端敞开以形成采光口(111)；镀膜镜片组(20)，镀膜镜片组(20)包括：多个镜片(21)以及多个红外线过滤膜(22)，多个镜片(21)位于容纳空间(11)内，且沿镜筒(10)的轴向依次排布；多个红外线过滤膜(22)分散设于多个镜片(21)的表面中的至少两个表面。

Description

镜头、镜头模组以及移动终端 技术领域
本公开涉及摄像技术领域，具体而言，涉及一种镜头、镜头模组以及移动终端。
背景技术
随着电子信息的迅猛发展，电子设备也逐渐成为人们生活中不可缺少的一部分。镜头模组是一种具备摄像功能的部件，广泛应用于手机、平板电脑、电子手表等电子产品中，近年来，随着电子设备朝着微型化超薄化方向发展，对镜头模组提出了更高的要求。
相关技术中，将红外线过滤膜蒸镀倒一枚镜片中以降低镜头模块的厚度，但由于这样需要多层蒸镀，并且蒸镀温度较高，塑料材质的镜片无法长时间承受高温，并且多层蒸馏的镀膜容易造成光线色散的问题，从而影响成像的质量。
发明内容
本公开旨在至少解决现有技术中存在的技术问题之一。为此，本公开提出了一种镜头，在保证成像质量的同时，可以降低镜头的厚度。
本公开还提出了一种具有上述镜头的镜头模组。
本公开还提出了一种具有上述镜头模组的移动终端。
根据本公开第一方面实施例的一种镜头，包括镜筒和镀膜镜片组，所述镜筒内限定出容纳空间，所述容纳空间的一端敞开以形成采光口；所述镀膜镜片组包括：多个镜片以及多个红外线过滤膜，多个所述镜片位于所述容纳空间内，且沿所述镜筒的轴向依次排布；多个所述红外线过滤膜分散设于多个所述镜片的表面中的至少两个表面。
根据本公开实施例的镜头，通过将红外线过滤膜分散蒸馏倒多个镜片上，可以减少单个塑料材质的镜片高温蒸镀的时间，如此，减少了色散问题和热形变的问题，保证了镜头的成像质量并且有效地降低了镜头的厚度。
根据本公开的一些实施例，所述镜片的个数为两个以上，所述红外线过滤膜至少分布于距离所述采光口最近的一个所述镜片表面和距离所述采光口最远的一个所述镜片表面。如此，可以提高镜头的成像质量。
根据本公开第二方面实施例的镜头模组，包括：镜头、罩部、电路板和感光芯片。所述罩部与所述镜筒连接；电路板，所述罩部罩设于所述电路板且与所述电路板连接； 还包括感光芯片，所述感光芯片安装于所述电路板上且位于所述电路板与所述罩部限定出的空间内。如此，可以提高镜头模组的成像质量，并且可以有效地降低镜头模组的厚度。
根据本公开的一些实施例，所述镜筒的一部分侧壁伸入所述罩部内，至少一个所述镜片安装于所述镜筒的伸入所述罩部的侧壁内。如此，可以使镜片更牢靠地固定在镜筒上，并且可以降低镜片与感光芯片的距离，提高镜头模组的成像质量与讯号的传输效率。
根据本公开的一些实施例，伸入所述罩部内的镜片的个数为一个且设有红外线过滤膜，且所述红外线过滤膜设于所述伸入所述罩部内镜片的靠近所述感光芯片的一侧表面，从而可以提高镜头模组的成像质量。
根据本公开的一些实施例，所述罩部具有与所述镜筒相对的窗口，所述镜筒覆盖所述窗口，所述镀膜镜片组中的一部分所述镜片设置于所述罩部内且与所述窗口相对设置，所述感光芯片设于所述罩部内。这样设置可以提高镜头模组的成像质量，并且镜头模组的可靠性高。
根据本公开的一些实施例，所述电路板与所述罩部的一端相连接，所述罩部的远离所述电路板的另一端具有安装凸部，所述窗口形成在所述安装凸部上，所述安装凸部内侧形成有安装槽，一个所述镜片安装于所述安装槽内，所述镜筒与所述安装凸部连接，从而可以提高镜头模组的结构可靠性，可以降低镜头模组的厚度。
根据本公开的一些实施例，安装于所述安装槽内的镜片的靠近所述感光芯片的一侧表面设有所述红外线过滤膜以便于更有效地提高镜头模组的成像质量。
根据本公开的一些实施例，所述镜头模组还包括：马达，所述马达与所述罩部相连接，所述马达套设在所述镜筒上且用于驱动所述镜筒沿轴向移动。通过设置马达可以带动镜筒和镜筒内的镜片移动以完成对焦。
根据本公开的一些实施例，所述罩部在所述窗口处形成有安装凸部，所述马达设置有安装凹部，所述安装凸部配合在所述安装凹部内，从而可以有效实现罩部和马达之间的安装定位，可以有效降低马达的安装难度，可以提高镜头模组的安装效率。
根据本公开第三方面实施例的移动终端，包括根据本公开上述第二方面实施例的镜头模组。移动终端成像效果好，并且可以实现轻薄化。
本公开的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本公开的实践了解到。
本公开的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本公开的实践了解到。
附图说明
本公开的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是根据本公开实施例的实施例一的镜头模组的示意图；
[根据细则91更正 09.04.2020]　
图2是根据本公开的一个可选实施例的镀膜镜片组的示意图；
图3是根据本公开实施例的实施例二的镜头模组的示意图；
图4是根据本公开实施例的实施例三的镜头模组的示意图。
附图标记：
镜头100；镜头模组200；
镜筒10；容纳空间11；采光口111；
镀膜镜片组20；镜片21；红外线过滤膜22；
罩部110；安装凸部1102；安装槽1103；电路板120；感光芯片130；马达140；安装凹部1401；窗口151。
具体实施方式
下面详细描述本公开的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本公开，而不能理解为对本公开的限制。
在本公开的描述中，需要理解的是，术语“中心”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。
需要说明的是，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。进一步地，在本公开的描述中，除非另有说明，“多个”的含义是两个或两个以上。
下面参考图1-图4描述根据本公开第一方面实施例的镜头100。
如图1-图4所示，根据本公开第一方面实施例的镜头100，包括镜筒10和镀膜镜片组20。
具体而言，镜筒10内限定出容纳空间11，容纳空间11的一端敞开以形成采光口111，镀膜镜片组20包括多个镜片21和多个红外线过滤膜22，多个镜片21位于容纳空间11内，并且沿镜筒10的轴向依次排布，多个红外线过滤膜22分散设于多个镜片21的表面中的至少两个表面。参照图1，镜筒10内设有多个镜片21，光线沿多个镜片21的排布方向从采光口111进入镜头100。
根据本公开实施例的镜头100，将红外线过滤膜22分散设置到多个镜片21的表面中的至少两个表面上，通过光学仿真选取合适的曲率与面型的镜片21进行红外光镀膜，减少了相关技术中的镜头的色散问题和材质热形变问题，提高了镜头100的成像质量，并且有效地降低了镜头100的厚度。
具体地，红外线过滤膜22可以通过蒸馏的方式设置在多个镜片21的表面。
根据本公开的一些可选实施例，可以在镜筒10中的所有镜片21上镀膜以达到理想效果。当然，也可选取所需的多个镜片21上镀膜，其余的镜片21无需镀膜也可达到所需效果。在本公开的描述中，“多个”的含义是两个或两个以上。
进一步地，镜片21的个数为两个以上，红外线过滤膜22至少分布于靠近采光口111的一个镜片21表面和远离采光口111的的一个镜片21表面，例如，红外线过滤膜22至少分布于距离采光口111最近的一个镜片21表面和距离采光口111最远的一个镜片21表面。如此，可以提高镜头100的成像质量。
根据本公开第二方面实施例的镜头模组200，包括根据本公开第一方面实施例的镜头100，还包括罩部110、电路板120和感光芯片130，罩部110与镜筒10连接；罩部110罩设于电路板120，并且与电路板120连接，感光芯片130安装于电路板120上，并且位于电路板120与罩部110限定出的空间内。
结合图1-图4，感光芯片130用于接受影像，靠近采光口111的镜片21与感光芯片130在轴向方向相对设置，从而可以有效地过滤红外光，提高成像质量。并且，镜片21可以保护感光芯片130不受外界干扰。电路板120可以承靠并且固定罩部122和感光芯片130，同时可以传输电气讯号。这样设置可以提高镜头模组200的成像质量，并且有效地降低了镜头模组200的厚度。
举例而言，镜筒10与罩部110通过胶水粘接，并且罩部110通过胶水粘接在电路板120上以使镜头模组200结构稳定可靠。
可选地，胶水采用低收缩率的UV胶水(无影胶)，UV胶水相较传统胶水更加节能、环保且高效，如此粘接的镜头模组200结构可靠，从而提高了镜头模组200的可靠性。但不局限于此。
参照图1、图3和图4，镜筒10的内表面上具有多个用于固定镜片21的多个台阶部，多个台阶部可以与多个镜片21的两端配合，从而可以将多个镜片21稳固地固定在镜筒10上。
根据本公开的第一个可选实施例，如图1所示，镜筒10的一部分侧壁伸入罩部110内，至少一个镜片21安装于镜筒10的伸入罩部110的侧壁内。这样可以提高上述镜片21与镜筒10的接触面积，从而使镜片21更加牢靠地固定在镜筒10上，并且这样设置可以降低上述镜片21与感光芯片130的距离，同时可以保证其与感光芯片130相对设置，以便于有效地过滤红外光，从而可以提高成像的质量和讯号的传输效率。并且，如此设置的镜头100可以起到防尘的作用，进一步地提高镜头模组200的结构稳定性。
进一步地，伸入罩部110内的镜片21的个数为一个，并且设有红外线过滤膜22，并且红外线过滤膜22设于伸入罩部110内镜片21的靠近感光芯片130的一侧表面，以便于提高镜头模组200的成像质量。
举例而言，参照图2，镜片21的个数为六个，六个镜片21从上到下方向分别为第一镜片21、第二镜片21、第三镜片21、第四镜片21、第五镜片21和第六镜片21，第六镜片21设置在靠近感光芯片130的一端，分别选取第二镜片21和第五镜片21的远离电路板120的一侧的外表面进行低层数IR(红外)镀膜，并选取剩余镜片21的靠近电路板120的一侧的外表面进行低层数IR镀膜，由此，可以使镜头模组200减少相关技术中的镜头的色散问题和材质热形变问题，并且有效地降低了镜头模组200的厚度。
根据本公开的第二个可选实施例，参照图3，罩部110具有与镜筒10相对的窗口151，镜筒10覆盖窗口151，镀膜镜片组20的一部分镜片21设置于罩部110内，而且该一部分镜片21与窗口151相对设置，感光芯片130设于罩部110内，感光芯片130朝向采光口111，并且与采光口111相对设置，以便于感光芯片130接受影像。镜筒10通过胶水例如低收缩率的UV胶水粘接。从而可以提高镜头模组200的可靠性。
具体地，镜筒10内可以设有一个或多个遮光片与固定环，遮光片与采光口111在轴向方向相对设置，可以起到防尘的作用。可选地，将固定环设置在镜筒10的远离采光口111方向的最外端，如此设置的固定环一方面可以起到固定镜筒10内的镜片21的作用，另一方面，由于固定环为环状，中间的位置可以容置镜片21凸起的曲面，由此可以提高镜头模组200结构的可靠性，并且可以降低镜头模组200的厚度。
进一步地，如图3所示，电路板120与罩部110的一端相连接，罩部110的远离电路板120的另一端具有安装凸部1102，窗口151形成在安装凸部1102上，安装凸部1102内侧形成有安装槽1532，一个镜片21安装于安装槽1532内，镜筒10与安装凸部1102连接。电路板120设置于罩部110的远离窗口151的一侧，电路板120可以传输电气讯号，并且可以承靠并固定镜筒10。镜筒10内的镜片21通过安装槽1532设置在镜筒10上，并且与感光芯片130相对以便于提高讯号的传输效率。
在本公开的一些实施例中，结合图3，安装于安装槽1532内的镜片21的靠近感光芯片130的一侧表面设有红外线过滤膜22以便于更有效地提高镜头模组200的成像质量。当然，在另一些示例中，镜筒10内可以设有多个镜片21，红外线过滤膜22可以设置在靠近感光芯片130的镜片21上，并且设置在上述镜片21的靠近感光芯片130的外表面的一侧。
具体地，红外线过滤膜22可以分散蒸馏到镜筒10和罩部110中的多个镜片21上，从而减少了色散问题和材质热形变问题，并且有效地降低了镜头模组200的厚度。
根据本公开的第三个可选实施例，如图4所示，在上述第二个可选实施例的基础上，该实施例的镜头模组200还增加了马达140，马达140与罩部110相连接，马达140套设在镜筒10上，而且马达140用于驱动镜筒10沿轴向移动。其中，马达140用于带动镜筒10与镜筒10内的镜片21进行光轴(光轴为通过镜头100中心点的光束的中心线)方向的移动以完成对焦功能。马达140与罩部110可以通过胶水例如低收缩率的UV胶水进行粘接固定。
具体地，镜筒10内可以设有一个或多个遮光片与固定环，遮光片与采光口111在轴向方向相对设置，可以起到防尘的作用。可选地，将固定环设置在镜筒10的远离采光口111方向的最外端，如此设置的固定环一方面可以起到固定镜筒10内的镜片21的作用，另一方面，由于固定环为环状，中间的位置可以容置镜片21凸起的曲面，由此可以提高镜头模组200结构的可靠性，并且可以降低镜头模组200的厚度。
进一步地，参照图4，罩部110的远离电路板120的一端具有安装凸部1102，马达140设置有安装凹部1401，安装凸部配合在安装凹部1401内，通过两者的配合，可以有效实现罩部110和马达140之间的安装定位，可以有效降低马达140的安装难度，可以提高镜头模组200的安装效率。
具体地，红外线过滤膜22可以分散蒸馏到镜筒10和罩部110中的多个镜片21上，从而减少了色散问题和材质热形变问题，并且有效地降低了镜头模组200的厚度。
根据本公开第三方面实施例的移动终端，包括根据本公开上述第而方面实施例的镜 头模组200。
根据本公开实施例的移动终端的其他构成例如基板和存储器等以及操作对于本领域普通技术人员而言都是已知的，这里不再详细描述。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本公开的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本公开的实施例，本领域的普通技术人员可以理解：在不脱离本公开的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本公开的范围由权利要求及其等同物限定。

Claims (11)

  1. 一种镜头，其特征在于，包括：
    镜筒，所述镜筒内限定出容纳空间，所述容纳空间的一端敞开以形成采光口；
    镀膜镜片组，所述镀膜镜片组包括：
    多个镜片，多个所述镜片位于所述容纳空间内，且沿所述镜筒的轴向依次排布；以及
    多个红外线过滤膜，多个所述红外线过滤膜分散设于多个所述镜片的表面中的至少两个表面。
  2. 根据权利要求1所述的镜头，其特征在于，所述镜片的个数为两个以上，所述红外线过滤膜至少分布于距离所述采光口最近的一个所述镜片表面和距离所述采光口最远的一个所述镜片表面。
  3. 一种镜头模组，其特征在于，包括：
    如权利要求1或2所述镜头；
    罩部，所述罩部与所述镜筒连接；
    电路板，所述罩部罩设于所述电路板且与所述电路板连接；
    感光芯片，所述感光芯片安装于所述电路板上且位于所述电路板与所述罩部限定出的空间内。
  4. 根据权利要求3所述的镜头模组，其特征在于，所述镜筒的一部分侧壁伸入所述罩部内，至少一个所述镜片安装于所述镜筒的伸入所述罩部的侧壁内。
  5. 根据权利要求4所述的镜头模组，其特征在于，伸入所述罩部内的镜片的个数为一个且设有红外线过滤膜，且所述红外线过滤膜设于所述伸入所述罩部内镜片的靠近所述感光芯片的一侧表面。
  6. 根据权利要求3所述的镜头模组，其特征在于，所述罩部具有与所述镜筒相对的窗口，所述镜筒覆盖所述窗口，所述镀膜镜片组中的一部分所述镜片设置于所述罩部内且与所述窗口相对设置，所述感光芯片设于所述罩部内。
  7. 根据权利要求6所述的镜头模组，其特征在于，所述电路板与所述罩部的一端相连接，所述罩部的远离所述电路板的另一端具有安装凸部，所述窗口形成在所述安装凸部上，所述安装凸部内侧形成有安装槽，一个所述镜片安装于所述安装槽内，所述镜筒与所述安装凸部连接。
  8. 根据权利要求7所述的镜头模组，其特征在于，安装于所述安装槽内的镜片的 靠近所述感光芯片的一侧表面设有所述红外线过滤膜。
  9. 根据权利要求6所述的镜头模组，其特征在于，还包括：马达，所述马达与所述罩部相连接，所述马达套设在所述镜筒上且用于驱动所述镜筒沿轴向移动。
  10. 根据权利要求9所述的镜头模组，其特征在于，所述罩部在所述窗口处形成有安装凸部，所述马达设置有安装凹部，所述安装凸部配合在所述安装凹部内。
  11. 一种移动终端，其特征在于，包括如权利要求3-10中任一项所述的镜头模组。
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