WO2019095488A1 - 自动加热摄像模组 - Google Patents

自动加热摄像模组 Download PDF

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Publication number
WO2019095488A1
WO2019095488A1 PCT/CN2017/116809 CN2017116809W WO2019095488A1 WO 2019095488 A1 WO2019095488 A1 WO 2019095488A1 CN 2017116809 W CN2017116809 W CN 2017116809W WO 2019095488 A1 WO2019095488 A1 WO 2019095488A1
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WO
WIPO (PCT)
Prior art keywords
lens
heating
camera module
cavity
lens barrel
Prior art date
Application number
PCT/CN2017/116809
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English (en)
French (fr)
Inventor
刘佳俊
陈波
徐程
杜亮
刘洪海
刘振庭
符致农
汪鸿飞
Original Assignee
广东弘景光电科技股份有限公司
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Application filed by 广东弘景光电科技股份有限公司 filed Critical 广东弘景光电科技股份有限公司
Publication of WO2019095488A1 publication Critical patent/WO2019095488A1/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
    • G03B17/55—Details of cameras or camera bodies; Accessories therefor with provision for heating or cooling, e.g. in aircraft

Definitions

  • the invention relates to a camera module, in particular to a camera module with a heating function for defrosting and defogging.
  • the existing camera module generally does not have a heating function, and can not achieve the effect of automatic defrosting and defogging in cold or wet weather conditions or environments.
  • the embodiment of the invention provides an automatic heating camera module.
  • the automatic heating camera module comprises at least a lens barrel, a first lens disposed at a front end of the lens barrel, and a gland for locking the first lens on the lens barrel, and a heating device capable of heating the first lens .
  • the first lens that is exposed can be heated by providing a heating device, so that the effect of automatic defrost and defogging can be achieved in a weather condition or environment such as cold or humidity. Suitable for automotive lens, outdoor monitoring and many other fields.
  • FIG. 1 is a schematic structural view 1 of a first embodiment of a camera module according to an embodiment of the present invention
  • FIG. 2 is a second schematic structural diagram of a first embodiment of a camera module according to an embodiment of the present invention
  • Figure 3 is a cross-sectional view taken along line A-A of Figure 1;
  • FIG. 4 is a schematic structural view of a first embodiment of a heating device according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram 1 of a second embodiment of a camera module according to an embodiment of the present invention.
  • FIG. 6 is a second schematic structural diagram of a second embodiment of a camera module according to an embodiment of the present invention.
  • Figure 7 is a cross-sectional view taken along line B-B of Figure 5;
  • Figure 8 is a schematic structural view of a second embodiment of a heating device according to an embodiment of the present invention.
  • FIG. 9 is a first schematic structural diagram 1 of a third embodiment of a camera module according to an embodiment of the present invention.
  • FIG. 10 is a second schematic structural diagram of a third embodiment of a camera module according to an embodiment of the present invention.
  • Figure 11 is a cross-sectional view taken along line C-C of Figure 9;
  • Figure 12 is a schematic view showing the structure of a third embodiment of a heating apparatus according to an embodiment of the present invention.
  • connection In the description of the present invention, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • Connected, or integrally connected can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • the specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.
  • an embodiment of the present invention provides an automatic heating camera module, comprising at least a lens barrel 1, a first lens 2 disposed at a front end of the lens barrel 1, and a first lens A cap 2 that locks the lens 2 on the lens barrel 1 further includes a heating device 4 that heats the first lens.
  • the heating device 4 can directly heat the first lens 1.
  • the first lens that is exposed can be heated by providing a heating device, so that the effect of automatic defrost and defogging can be achieved in a weather condition or environment such as cold or humidity. Suitable for automotive lens, outdoor monitoring and many other fields.
  • the heating device 4 is disposed between the first lens 2 and the lens barrel 1.
  • the structure is simple and the heating effect is good.
  • the heating surface of the heating device 4 acts on the image plane side of the first lens 2.
  • the structure is simple and the heating effect is good.
  • the lens barrel 1 is provided with at least a first cavity and a second cavity having a smaller inner diameter than the first cavity.
  • a longitudinal end surface is formed between the cavity and the second cavity.
  • the first lens 2 is mounted on the first cavity, and the heating device 4 is disposed in the first cavity and located between the image side and the longitudinal end surface of the first lens 2. .
  • the structure is simple and the heating effect is good.
  • a spacer 5 is disposed between the first cavity and the second cavity, and the heating device 4 is sleeved on the outer surface of the spacer 5.
  • the structure is simple and easy to install.
  • the lens barrel 1 is provided with a threading hole 11 extending transversely from the longitudinal end surface of the first cavity to the mirror. Outside the cylinder, the threading hole 11 is located at the periphery of the second cavity for extending the electrical connection end of the heating device 4 from the first cavity through the threading hole 11 to the outside of the lens barrel 1.
  • the structure is simple and the layout of the wires is compact.
  • the heating device 4 has an annular sheet shape.
  • the structure is simple and the heating effect is good.
  • the heating device 4 is integrally formed with two electrical connection ends extending from the front to the rear, and the heating device 4 is recessed on the outer side of the two electrical connection ends. There is a gap 41. Simple structure.
  • the gap between the two electrical connection ends of the heating device 4 is filled with a waterproof glue to prevent moisture from entering the lens barrel to form a mist, resulting in image blur.
  • the heating device 4 is a heat generating sheet.
  • the structure is simple and the heating effect is good.
  • the lens barrel 1 and/or the gland 3 are made of a heat conductive material.
  • the structure is simple, the entire camera module can transmit heat energy, and the overall heating effect is good.
  • the outer peripheral surface of the gland 3 is provided with an annular flange 31, one side of the flange 31 is provided with an annular card groove 32, and the other side of the flange 31 forms a mounting portion 33.
  • the outer diameter of the mounting portion 33 is smaller than the annular card slot 32.
  • a mounting boss 12 is disposed on the outer circumference of the lens barrel 1 between the front end and the rear end thereof, and the front end outer diameter D1, the boss outer diameter D2, and the rear end outer diameter are provided.
  • D3 meets: D1>D2>D3. Simple structure.
  • Embodiment 2 As shown in FIG. 5 to FIG. 8 , the difference from Embodiment 1 is that the heating device 4 can indirectly heat the first lens 2 .
  • the heating device 4 is provided on the gland 3.
  • the heat energy is transmitted to the first lens through the gland, the structure is simple, the heating device is convenient to install, and the heating effect is good.
  • the heating device 4 is provided on the outer peripheral surface of the gland 3.
  • the structure is simple, the heating device is convenient to install, and the heating effect is good.
  • the heating device 4 has a cylindrical shape and is sleeved on the outer circumferential surface of the gland 3 .
  • the structure is simple, the heating device is convenient to install, and the heating effect is good.
  • the heating device 4 is integrally formed with two electrical connection ends extending from the front to the rear in the axial direction. Simple structure.
  • the gap between the two electrical connection ends of the heating device 4 is filled with a waterproof glue to prevent moisture from entering the lens barrel to form a mist, resulting in image blur.
  • the outer periphery of the heating device 4 is provided with a notch 42 which is a non-closed cylinder. It can match the gland with different outer diameters and has a simple structure.
  • the heating device 4 is wound into a cylindrical shape by an elongated heat-generating sheet, and the axial direction is extended from the front to the rear to provide two electrical connection ends.
  • the portion having the electrical connection end is a circumferential leading end, and the other end is a circumferential end end, and a gap is formed between the circumferential end and end portions to form the notch 42.
  • the structure is simple and can match the glands of different outer diameters.
  • the heating device 4 is sleeved on the outer periphery of the mounting portion 33 of the gland 3.
  • the structure is simple, the heating device is convenient to install, and the heating effect is good.
  • Embodiment 3 As shown in FIG. 9 to FIG. 12, the difference from Embodiment 1 is that the heating device 4 can indirectly heat the first lens 2.
  • the heating device 4 is provided on the lens barrel 1 for heating the first lens 2.
  • the heat energy is transmitted to the first lens through the lens barrel, the structure is simple, the heating device is convenient to install, and the heating effect is good.
  • the heating device 4 is provided on the outer peripheral surface of the lens barrel 1.
  • the structure is simple, the heating device is convenient to install, and the heat energy transfer effect is good.
  • the heating device 4 has a cylindrical shape and is sleeved on the outer circumferential surface of the lens barrel 1.
  • the structure is simple, the heating device is convenient to install, and the heat energy transfer effect is good.
  • the heating device 4 is integrally formed with two electrical connection ends extending in the axial direction from the front to the rear. Simple structure.
  • the gap between the two electrical connection ends of the heating device 4 is filled with a waterproof glue to prevent moisture from entering the lens barrel to form a mist, resulting in image blur.
  • the outer periphery of the heating device 4 is provided with a notch 42 which is a non-closed cylinder. It can match the barrels with different outer diameters and has a simple structure.
  • the heating device 4 is wound into a cylindrical shape by an elongated heating piece, and the two axial ends are extended from the front to the rear to provide two electrical connection ends.
  • the portion where the electrical connection end is provided is a circumferential first end, and the other end is a circumferential end end, and a gap is formed between the circumferential end and end to form a notch 42.
  • the structure is simple and can match the barrels of different outer diameters.
  • the heating device 4 is sleeved on the outer circumference of the mounting boss 12 of the lens barrel 1.
  • the structure is simple, the heating device is convenient to install, and the heating effect is good.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lens Barrels (AREA)
  • Studio Devices (AREA)

Abstract

一种自动加热摄像模组，至少包括镜筒、设于镜筒前端的第一透镜、以及用于将第一透镜锁紧在镜筒上的压盖，还包括可对第一透镜进行加热的加热装置。通过设置加热装置，可以对外露的第一透镜进行加热，从而在寒冷、或潮湿等天气状况或环境下可以实现自动去霜、除雾的效果。适用于车载镜头、户外监控等众多领域。

Description

自动加热摄像模组 技术领域
本发明涉及一种摄像模组，尤其是一种具有加热功能以去霜除雾的摄像模组。
 背景技术
现有摄像模组，一般不具有加热功能，无法在寒冷、或潮湿等天气状况或环境下实现自动去霜除雾的效果。
 技术问题
为克服现有摄像模组不具有加热功能，无法在寒冷、或潮湿等天气状况或环境下实现自动去霜除雾效果的问题，本发明实施例提供了一种自动加热摄像模组。
 技术解决方案
自动加热摄像模组，至少包括镜筒、设于镜筒前端的第一透镜、以及用于将第一透镜锁紧在镜筒上的压盖，还包括可对第一透镜进行加热的加热装置。
 有益效果
本发明实施例通过设置加热装置，可以对外露的第一透镜进行加热，从而在寒冷、或潮湿等天气状况或环境下可以实现自动去霜、除雾的效果。适用于车载镜头、户外监控等众多领域。
 附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例的摄像模组的第一实施例的结构示意图一；
图2为本发明实施例的摄像模组的第一实施例的结构示意图二；
图3为图1的A-A剖示图；
图4为本发明实施例的加热装置的第一实施例的结构示意图；
图5为本发明实施例的摄像模组的第二实施例的结构示意图一；
图6为本发明实施例的摄像模组的第二实施例的结构示意图二；
图7为图5的B-B剖示图；
图8为本发明实施例的加热装置的第二实施例的结构示意图；
图9为本发明实施例的摄像模组的第三实施例的结构示意图一；
图10为本发明实施例的摄像模组的第三实施例的结构示意图二；
图11为图9的C-C剖示图；
图12为本发明实施例的加热装置的第三实施例的结构示意图。
 本发明的最佳实施方式
为了使本发明所解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
当本发明实施例提及“第一”、“第二”等序数词时，除非根据上下文其确实表达顺序之意，应当理解为仅仅是起区分之用。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
实施例一：如图1至图4所示，本发明实施例提供了一种自动加热摄像模组，至少包括镜筒1、设于镜筒1前端的第一透镜2、以及用于将第一透镜2锁紧在镜筒1上的压盖3，还包括可对第一透镜进行加热的加热装置4。
在本实施例中，加热装置4可直接对第一透镜1进行加热。
本发明实施例通过设置加热装置，可以对外露的第一透镜进行加热，从而在寒冷、或潮湿等天气状况或环境下可以实现自动去霜、除雾的效果。适用于车载镜头、户外监控等众多领域。
进一步地，作为一种具体实施方式而非限定，如图3所示，加热装置4设于第一透镜2与镜筒1之间。结构简单，加热效果好。
再进一步地，作为一种优选实施方式而非限定，如图3所示，加热装置4的加热面作用于第一透镜2的像面侧。结构简单，加热效果好。
更进一步地，作为一种优选实施方案，本实施例中，如图3所示，镜筒1上至少开设有第一容腔、以及内径较第一容腔小的第二容腔，第一容腔与第二容腔之间形成一纵向端面，第一透镜2安装于第一容腔，加热装置4设于第一容腔，并位于第一透镜2的像面侧与纵向端面之间。结构简单，加热效果好。
又进一步地，在本实施例中，如图3所示，第一容腔和第二容腔之间设有隔圈5，加热装置4套接于隔圈5外表面。结构简单，安装方便。
更进一步地，示例性的，在本实施例中，如图1至图3所示，镜筒1上开设有穿线孔11，穿线孔11自第一容腔的底部从纵向端面横向贯穿至镜筒外，且穿线孔11位于第二容腔外围，用于供加热装置4的电连接端自第一容腔穿过穿线孔11后向镜筒1外延伸。结构简单，走线布局紧凑。
再进一步地，作为一种具体实施方式而非限定，如图4所示，加热装置4呈环形片状。结构简单，加热效果好。
具体地，本实施例中，如图3、图4所示，加热装置4上一体成型设有由前向后弯折延伸的两电连接端，加热装置4上于两电连接端的外侧凹设有缺口41。结构简单。
进一步地，本实施例中，加热装置4两电连接端之间的间隙中填充有防水胶，防止水气进入镜筒形成雾气，导致成像模糊。
更具体地，在本实施例中，如图4所示，加热装置4为发热片。结构简单，加热效果好。
进一步地，作为一种具体实施方式而非限定，镜筒1和/或压盖3由导热材料制成。结构简单，整个摄像模组均能传递热能，整体加热效果好。
再进一步地，作为一种具体实施方式而非限定，压盖3外周面设有环形凸缘31，凸缘31的一侧开设有环形卡槽32，凸缘31的另一侧形成安装部33，安装部33的外径较环形卡槽32小。结构简单。
更进一步地，作为一种具体实施方式而非限定，镜筒1外周上于其前端与后端之间设有安装凸台12，且前端外径D1、凸台外径D2、后端外径D3满足：D1>D2>D3。结构简单。
实施例二：如图5至图8所示，与实施例一不同之处在于，加热装置4可间接对第一透镜2进行加热。
具体地，作为一种具体实施方式而非限定，如图5至图7所示，加热装置4设于压盖3上。通过压盖将热能传递至第一透镜，结构简单，加热装置安装方便，加热效果好。
更具体地，作为一种优选实施方式而非限定，如图5至图7所示，加热装置4设于压盖3的外周面。结构简单，加热装置安装方便，加热效果好。
进一步地，作为一种具体实施方式而非限定，如图7、图8所示，在本实施例中，加热装置4呈筒状，其套设于压盖3的外周面。结构简单，加热装置安装方便，加热效果好。
再进一步地，作为一种具体实施方式而非限定，如图5、图8所示，加热装置4上一体成型设有沿轴向由前向后延伸的两电连接端。结构简单。
进一步地，本实施例中，加热装置4两电连接端之间的间隙中填充有防水胶，防止水气进入镜筒形成雾气，导致成像模糊。
更进一步地，作为一种优选实施方式而非限定，如图6、图8所示，加热装置4的外周开设有缺口42，为非封闭的筒体。可匹配不同外径的压盖，结构简单。
又进一步地，在本实施例中，如图8所示，加热装置4由长条形发热片卷成筒体状，其轴向由前向后延伸设有两所述电连接端，该设置有电连接端的部位为周向首端，另一端为周向尾端，周向首尾端之间留有间隙形成所述缺口42。结构简单，可匹配不同外径的压盖。
具体地，作为一种优选实施方式而非限定，在本实施例中，如图5、图6、图7所示，加热装置4套设于压盖3安装部33外周。结构简单，加热装置安装方便，加热效果好。
实施例三：如图9至图12所示，与实施例一不同之处在于，加热装置4可间接对第一透镜2进行加热。
具体地，作为一种具体实施方式而非限定，如图9至图11所示，加热装置4设于镜筒1上用于对第一透镜2进行加热。通过镜筒将热能传递至第一透镜，结构简单，加热装置安装方便，加热效果好。
更具体地，作为一种优选实施方式而非限定，如图9至图11所示，加热装置4设于镜筒1的外周面。结构简单，加热装置安装方便，热能传递效果好。
进一步地，作为一种具体实施方式而非限定，如图12所示，加热装置4呈筒状，其套设于镜筒1的外周面。结构简单，加热装置安装方便，热能传递效果好。
再进一步地，作为一种优选实施方式而非限定，如图12所示，加热装置4上一体成型设有沿轴向由前向后延伸的两电连接端。结构简单。
进一步地，本实施例中，加热装置4两电连接端之间的间隙中填充有防水胶，防止水气进入镜筒形成雾气，导致成像模糊。
更进一步地，作为一种具体实施方式而非限定，如图10、图12所示，加热装置4的外周开设有缺口42，为非封闭的筒体。可匹配不同外径的镜筒，结构简单。
又进一步地，作为一种具体实施方式而非限定，在本实施例中，加热装置4由长条形发热片卷成筒体状，其轴向由前向后延伸设有两电连接端，该设置有电连接端的部位为周向首端，另一端为周向尾端，周向首尾端之间留有间隙形成缺口42。结构简单，可匹配不同外径的镜筒。
具体地，作为一种优选实施方案，如图9、图10所示，加热装置4套设于镜筒1的安装凸台12外周。结构简单，加热装置安装方便，加热效果好。
如上所述是结合具体内容提供的一种或多种实施方式，并不认定本发明的具体实施只局限于这些说明。凡与本发明的方法、结构等近似、雷同，或是对于本发明构思前提下做出若干技术推演或替换，都应当视为本发明的保护范围。

Claims (10)

  1. 自动加热摄像模组，至少包括镜筒、设于镜筒前端的第一透镜、以及用于将第一透镜锁紧在镜筒上的压盖，其特征在于，还包括可对第一透镜进行加热的加热装置。
  2. 如权利要求1所述的自动加热摄像模组，其特征在于，加热装置设于第一透镜与镜筒之间。
  3. 如权利要求1所述的自动加热摄像模组，其特征在于，加热装置间接对第一透镜进行加热。
  4. 如权利要求3所述的自动加热摄像模组，其特征在于，加热装置设于压盖或镜筒上。
  5. 如权利要求4所述的自动加热摄像模组，其特征在于，其特征在于，加热装置设于压盖或镜筒的外周面。
  6. 如权利要求5所述的自动加热摄像模组，其特征在于，其特征在于，加热装置呈筒状，其套设于压盖或镜筒的外周面。
  7. 如权利要求1或2所述的自动加热摄像模组，其特征在于，加热装置的加热面作用于第一透镜的像面侧。
  8. 如权利要求1或2所述的自动加热摄像模组，其特征在于，镜筒上至少开设有第一容腔、以及内径较第一容腔小的第二容腔，第一容腔与第二容腔之间形成一纵向端面，第一透镜安装于第一容腔，加热装置设于第一容腔，并位于第一透镜的像面侧与纵向端面之间。
  9. 如权利要求8所述的自动加热摄像模组，其特征在于，第一容腔和第二容腔之间设有隔圈，加热装置套接于隔圈外表面。
  10. 如权利要求9所述的自动加热摄像模组，其特征在于，镜筒上开设有穿线孔，穿线孔自第一容腔的底部从纵向端面横向贯穿至镜筒外，且穿线孔位于第二容腔外围，用于供加热装置的电连接端自第一容腔穿过穿线孔后向镜筒外延伸。
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