WO2024055949A1 - 镜头模组及电子设备 - Google Patents

镜头模组及电子设备 Download PDF

Info

Publication number
WO2024055949A1
WO2024055949A1 PCT/CN2023/118172 CN2023118172W WO2024055949A1 WO 2024055949 A1 WO2024055949 A1 WO 2024055949A1 CN 2023118172 W CN2023118172 W CN 2023118172W WO 2024055949 A1 WO2024055949 A1 WO 2024055949A1
Authority
WO
WIPO (PCT)
Prior art keywords
lens
light
light source
optical power
lenses
Prior art date
Application number
PCT/CN2023/118172
Other languages
English (en)
French (fr)
Inventor
齐永红
Original Assignee
维沃移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2024055949A1 publication Critical patent/WO2024055949A1/zh

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • 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
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/03—Combinations of cameras with lighting apparatus; Flash units
    • 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
    • G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles

Definitions

  • This application belongs to the technical field of communication equipment, and specifically relates to a lens module and electronic equipment.
  • the fill light 500 adopts the design structure of a Fresnel lens and a reflective bowl, causing the appearance of the opening of the fill light to be more abrupt than the appearance of the opening of the camera module 600. Therefore, the appearance consistency of the electronic device is poor.
  • the purpose of the embodiments of the present application is to provide a lens module and an electronic device that can achieve a consistent appearance of the fill light of the electronic device and the camera module.
  • An embodiment of the present application provides a lens module, including:
  • the number of the lenses is multiple, and the plurality of lenses are arranged at intervals, and some of the lenses are used to form a camera module; at least one of the lenses is arranged opposite to the light source to form a fill light; Along the direction of the optical axis of the lens, the lens has a first side and a second side, and the optical The source and the imaging device of the camera module are both located on the first side; the light emitted by the light source enters at least one of the lenses corresponding to the light source from the first side, and then exits from the second side .
  • An embodiment of the present application provides an electronic device, including the above lens module.
  • At least one lens is arranged opposite to the light source to form a fill light.
  • the light source is located on the first side of the lens, and the light emitted by the light source enters the lens from the first side and exits from the second side.
  • the fill light is designed as a light source plus lens structure, which allows the fill light to take on the appearance of a camera module. Therefore, when the fill light and camera module are put together for appearance stacking design, it can improve Appearance consistency and coordination of electronic equipment.
  • Figure 1 is a schematic diagram of the stacking arrangement of fill lights and camera modules in related technologies
  • Figure 2 is a schematic diagram of the stacking arrangement of the fill light and the camera module in the electronic device disclosed in the embodiment of the present application;
  • Figure 3 is a schematic structural diagram of the fill light in the lens module disclosed in the embodiment of the present application.
  • Figure 4 is a schematic diagram of the light path of the fill light in the lens module disclosed in the embodiment of the present application.
  • FIG. 5 is an arrangement structural diagram of the lens and light source of the fill light in the lens module disclosed in the embodiment of the present application.
  • inventions of the present application disclose a lens module, which is used in electronic equipment.
  • the disclosed lens module includes a light source 100 and a lens 200 .
  • the camera module 300 is used to implement the shooting function of the electronic device.
  • the lens 200 used to form the camera module 300 can be used as the first lens.
  • the first lens is arranged opposite to the photosensitive chip, and the ambient light is injected into the photosensitive chip through the first lens, thereby realizing the shooting function.
  • the photosensitive chip and its imaging principle are well-known technologies and are not limited in this article.
  • the lens 200 has a first side and a second side, and the imaging device of the camera module is located on the first side.
  • the imaging device here includes the above-mentioned photosensitive chip.
  • the direction from the second side to the first side here can be the incident direction of ambient light, which can be understood as the ambient light enters the lens 200 from the second side, and then exits the lens 200 from the first side and is incident on the photosensitive chip.
  • the lens 200 in the camera module 300 is the direction in which ambient light is incident.
  • At least one lens 200 is arranged opposite to the light source 100 to form a fill light 400 .
  • the lens 200 forming the fill light 400 can be used as the second lens.
  • the fill light 400 can be used for lighting, or when the user is shooting in a dark environment, the fill light 400 can fill the shooting scene.
  • the light source 100 is located on the first side, and the light emitted by the light source 100 enters the corresponding at least one lens 200 from the first side, and then exits from the second side.
  • the light transmission direction of the fill light 400 in this application is related to the transmission direction of ambient light. The direction of loss is opposite.
  • the light of the fill light 400 is emitted from the electronic device to the environment through the second lens, while in the camera module 300, the ambient light is emitted into the electronic device through the first lens and is received by the photosensitive chip.
  • the light source 100 of the fill light 400 can be an LED (Light Emitting Diode, semiconductor light emitting diode) lamp, a high pressure sodium lamp, a metal halide lamp, etc.
  • the light source 100 of the fill light can also be of other structures, which are not limited herein.
  • the fill light 400 is designed as a structural form of the light source 100 plus the lens 200, which allows the fill light 400 to present the appearance of the camera module 300. Therefore, the fill light 400 and the camera module 300 are When put together for appearance stacking design, the appearance consistency of electronic equipment can be improved. In addition, when the fill light 400 and the camera module 300 in this solution are put together for appearance stacking design, the camera module 300 and the fill light 400 are perfectly integrated, thereby improving the coordination of the electronic equipment.
  • the fill light 500 adopts the design structure of a Fresnel lens and a reflective bowl.
  • the Fresnel lens and the reflective bowl are usually in high-brightness colors to reflect the light emitted by the fill light 500, thereby improving the fill light.
  • Lamp 500 brightness Therefore, the appearance color of the fill light 500 in the related art is usually yellowish white.
  • the color deviation between it and the lens of the camera module 600 is large.
  • the structural form of the light source 100 plus the lens 200 makes the color of the lens 200 of the camera module 300 consistent with the color of the lens 200 of the fill light 400, thus further improving the appearance consistency and coordination of the electronic device. sex.
  • the fill light 500 in the related art is provided with a Fresnel lens or a reflective bowl, and part of the light emitted by the light source is reflected by the Fresnel lens or the reflective bowl and then emitted.
  • the light irradiated by the fill light 500 in the related art is relatively dispersed, so the brightness is poor.
  • the light emitted by the light source 100 is collected through the lens 200, so that the light emitted by the light source 100 is condensed. Therefore, the luminous brightness of the fill light 400 in this application is relatively high.
  • the lens 200 may include a lens barrel 210 and a lens group 220.
  • the lens group 220 is located in the lens barrel 210.
  • the lens group 220 includes a plurality of lenses spaced apart along the axis direction of the lens barrel 210.
  • Source 100 is positioned opposite lens set 220 .
  • the multiple lenses of the lens group 220 may be convex lenses, concave lenses, or a combination structure of convex lenses and concave lenses.
  • the appearance color of the lens 200 of the fill light 400 may be the same as the appearance color of the lens 200 of the camera module 300 in the electronic device.
  • the appearance color of the lens 200 of the fill light 400 may be black.
  • the lens barrel 210 may be made of black injection molded parts, or may be made of metal parts with a black surface treatment.
  • the appearance color of other internal structures may also be black.
  • the light exit surface of the light source 100 coincides with the focal plane of the lens 200 that constitutes the fill light 400 .
  • the focal plane of the lens 200 refers to the plane that is perpendicular to the optical axis of the lens 200 and contains the focus.
  • the focus is the point formed by converging light, and a clear image can be formed at the focus.
  • the light exit surface of the light source 100 is placed on the focal plane of the lens 200 . It can be known from the projection principle that ambient light enters the lens 200 from the second side, passes through the lens group 220 and is collected at the focal point of the focal plane of the lens 200.
  • the light collected at the focal point can cover the entire field of view of the lens 200.
  • the light exit surface of the light source 100 is coincident with the focal plane of the lens 200 .
  • the light source 100 projects light outward from the focal plane of the lens 200, so the light emitted by the light source 100 can cover the entire field of view of the lens 200, thereby further improving the optical performance of the fill light 400.
  • the lens 200 should cooperate to collect the light emitted forward as much as possible. If the distribution angle of the collected light is different up and down, the brightness and color deviation of the fill light 400 will be relatively large. Based on this, in another optional embodiment, the chief light angle of the lens 200 forming the fill light 400 may be less than 8°.
  • the chief ray angle here is the angle between the chief ray and the normal.
  • the chief ray is the light passing through the center of the lens 200 , which can also be understood as the light passing through the center of the aperture 230 of the lens 200 .
  • the chief ray will illuminate the above-mentioned focal plane.
  • the focal plane here can be understood as the image plane or the luminous surface of the light source 100.
  • the normal line of the luminous surface (the line perpendicular to the luminous surface is the normal line of the luminous surface) ) and the chief ray is the chief ray angle (CRA).
  • the lens 200 may also include an aperture 230.
  • the aperture 230 is used to limit the amount of light passing through the lens 200.
  • the aperture 230 is disposed between any two lenses.
  • the amount of light transmitted by the aperture 230 is usually represented by the F number.
  • the specific concept of the F number is common knowledge and will not be described again here. The smaller the F number is, the larger the aperture 230 is, and the greater the light transmission amount of the lens 200 is; the larger the F number is, the smaller the aperture 230 is, and the smaller the light transmission amount of the lens 200 is.
  • the brightness of the fill light 400 can be changed by changing the size of the aperture 230.
  • the degree of ambient light entering the lens 200 can be controlled by changing the size of the aperture 230. Therefore, the optical performance of the fill light 400 is better.
  • the larger the size of the through hole the easier it is for the user to pass through the through hole. See the internal components of the fill light 400, such as the light source 100. Therefore, the smaller the F number, although the energy of the light source 100 passing through the lens will be higher and the brightness of the fill light will be higher, it will also be easier for device leakage to occur.
  • the F-number of the aperture 230 is greater than 0.7.
  • the F number of the aperture 230 is within this range, which can ensure that the components of the fill light 400 are not easily exposed.
  • a large number of lenses in the lens group 220 will lead to a reduction in the light energy transmittance of the lens 200.
  • a small number of lenses in the lens group 220 will result in a poor light collection effect of the lens 200.
  • the lens group 220 includes a first lens 221 , a second lens 222 and a third lens 223 , the first lens 221 , the second lens 222 , the third lens 223 and the light source 100 Arranged at intervals.
  • the number of lenses 200 is three, which can not only ensure that the lens 200 has a good light transmittance, but also ensure that the lens 200 has a good light collection efficiency.
  • the first lens 221, the second lens 222 and the third lens 223 can be made using an injection molding process, and the first lens 221, the second lens 222 and the third lens 223 can be made of the same optical material, for example,
  • the first lens 221, the second lens 222 and the third lens 223 can be It can be made of materials such as PMMA (Polymeric Methyl Methacrylate) or PC (Polycarbonate). It can also be made of different optical materials, such as a mixed material of PMMA and PC.
  • each lens of the lens group 220 may be provided with an anti-reflection coating.
  • each lens can be treated with anti-reflection coating, thereby further improving the light transmittance of the lens 200 and thus not easily affecting the luminous efficiency of the fill light 400 .
  • the anti-reflection coating can be made of magnesium fluoride, titanium oxide, lead sulfide, lead selenide and other materials. Of course, it can also be made of other materials, which are not limited in this article.
  • the first lens 221 may have a first optical power
  • the second lens 222 may have a second optical power
  • the third lens 223 may have a third optical power
  • the first light The power can be less than zero, in which case the first power is negative.
  • Both the second optical power and the third optical power can be greater than zero, in which case the second optical power and the third optical power are both positive values.
  • Optical power characterizes the ability of an optical system to deflect light. When the value of optical power is larger, the parallel beam is bent more severely, and its refraction angle is larger. When the optical power is positive, the refraction of light is convergent. When the optical power is negative, the refraction of light is divergent.
  • the optical power of the second lens 222 and the third lens 223 close to the light source 100 can be positive, thereby converging the light.
  • the light passes through the first lens 221 and then exits the lens 200. Therefore, the optical power of the first lens 221 can be a negative value, thereby causing the light to diverge, thereby increasing the illumination range of the fill light 400.
  • This solution can further improve the optical performance of the fill light 400.
  • the first lens 221 may be a concave lens
  • the second lens 222 and the third lens 223 may both be convex lenses.
  • the ratio of the first optical power to the third optical power may be greater than -0.78 and less than -0.58.
  • the ratio of the second optical power to the third optical power may be greater than 0.83 and less than 0.93.
  • the ratio of the first optical power to the third optical power and the ratio of the second optical power to the third optical power exceed the upper limit, it will cause the spherical aberration of the entire lens 200 to be too large.
  • Excessive spherical aberration refers to The degree of refraction and bending of the light at the edge of the lens 200 is much greater than the degree of bending of the light at the center of the lens, so the energy utilization rate of the fill light is reduced.
  • the ratio of the first optical power to the third optical power and the ratio of the second optical power to the third optical power within the above range, can ensure that the optical power of the lens 200 is sufficient, so that the light-emitting surface of the light source 100
  • the matching with the lens 200 is better, and the energy utilization efficiency of the fill light 400 is also better.
  • the third lens 223 Since the third lens 223 is closer to the light source 100 , the light collecting property of the third lens 223 is an important factor in determining the optical performance of the fill light 400 .
  • the third lens 223 has a first arc surface 2231 and a second arc surface 2232.
  • the first arc surface 2231 can be located at On the side where the light source 100 is located, the second arc-shaped surface 2232 can be located on the side where the second lens 222 is located, and the protruding directions of the first arc-shaped surface 2231 and the second arc-shaped surface 2232 can both face the second lens 222 .
  • the third lens 223 has a meniscus-shaped structure, and the surface of the third lens 223 is curved outward and concave toward the light source 100 .
  • the outward curving of the surface of the third lens 223 here refers to curving toward the second side of the lens 200 .
  • the third lens 223 has better light collection performance, thus further improving the energy utilization rate of the fill light 400 .
  • the radius of the first arcuate surface 2231 is the first curvature value
  • the radius of the second arcuate surface 2232 is the second curvature value.
  • the ratio of the first curvature value to the second curvature value may be greater than 6.5 and less than 10.
  • the optical power of the third lens 223 is insufficient, resulting in an excessive angle between the light angle and the surface of the third lens 223 and serious stray light. If the ratio of the first curvature value to the second curvature value exceeds the upper limit, the second surface of the third lens 223 is too curved, causing the field curvature to be too large, the defocus degree difference between the center and the edge to be too large, and the color consistency of the projected light spot to be poor. . Therefore, the third lens 223 has good light collection performance when the ratio of the first curvature value to the second curvature value is within the above range, so the light performance of the fill light 400 is good.
  • the lens 200 further includes a plurality of fixing rings 240 , and each lens can be clamped and fixed by two adjacent fixing rings 240 .
  • each lens is clamped and fixed by two connected fixing rings 240, so that wear occurs between two adjacent lenses, thereby improving the safety and reliability of the lens 200.
  • the light source 100 can be disposed outside the lens barrel 210. In this case, the light is easily scattered outside the lens 200, resulting in light leakage.
  • the lens module may also include a circuit board 250.
  • the circuit board 250 may be capped at one end of the lens barrel 210.
  • the circuit board 250 and the lens barrel 210 form an accommodation space 260.
  • the light source 100 and The circuit board 250 is electrically connected, and the light source 100 may be located within the accommodation space 260 .
  • the light source 100 is located in the accommodation space 260 , and the circuit board 250 covers one end of the lens barrel 210 , so the fill light 400 is not prone to light leakage, thereby further improving the optical performance of the fill light 400 .
  • the light source 100 can be located in the accommodation space 260 , and the light source 100 is not likely to interfere or collide with other components of the electronic device, thus further improving the safety and reliability of the fill light 400 .
  • the circuit board 250 may be a printed circuit board, or the circuit board 250 may be a rigid-flex board, or the circuit board 250 may include a flexible circuit board and a reinforcing board arranged in close contact with each other.
  • the photosensitive chip of the camera module 300 can also be electrically connected to the circuit board 250, which can improve the integration level of the circuit board 250 and simplify the structure of the electronic device.
  • the lens 200 may further include a driving mechanism.
  • the driving mechanism may be connected to the lens group 220 .
  • the driving mechanism is used to drive the lens group 220 to move along the axis direction of the lens barrel 210 .
  • the distance between the light source 100 and the lens group 220 is increased or decreased by driving the lens group 220 to move, thereby adjusting the brightness of the fill light 400, thereby increasing the application scenarios of the fill light 400.
  • the embodiment of the present application also discloses an electronic device.
  • the disclosed electronic device includes the lens module described in any of the above embodiments.
  • the appearance of the fill light 500 in the related art is very different from that of the camera module 600. Therefore, it is difficult for the two to be designed and stacked simultaneously.
  • the appearance structure of the fill light 400 is consistent with that of the camera module 300, so the fill light 400 and the camera module 300 can be stacked together.
  • the arrangement makes the camera module 300 and the fill light 400 perfectly integrated, thereby making the overall appearance of the electronic device more coordinated.
  • the electronic devices disclosed in the embodiments of this application may be smartphones, tablet computers, e-book readers, wearable devices (such as smart watches), electronic game consoles, and other devices.
  • the embodiments of this application do not limit the specific types of electronic devices.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Abstract

本申请公开了一种镜头模组及电子设备，属于通讯设备技术领域，该镜头模组包括光源和镜头；所述镜头的数量为多个，且多个所述镜头间隔设置，其中部分所述镜头用于组成摄像头模组；至少一个所述镜头与所述光源相对设置，以组成补光灯；沿所述镜头的光轴方向，所述镜头具有第一侧和第二侧，所述光源和所述摄像头模组的成像器件均位于所述第一侧；所述光源发出的光线由所述第一侧进入所述光源对应的至少一个所述镜头，再从所述第二侧射出。

Description

镜头模组及电子设备
相关申请的交叉引用
本申请要求在2022年09月15日提交的中国专利申请第202211121640.9号的优先权，该中国专利申请的全部内容通过引用包含于此。
技术领域
本申请属于通讯设备技术领域，具体涉及一种镜头模组及电子设备。
背景技术
随着手机等电子设备影像功能的不断提升，用电子设备拍照的需求也越来越大，拍照场景层出不穷。对于暗光环境、夜景拍摄等场景，难以拍摄出清晰的照片，录像或直播场景也很难有好的体验。因此，部分电子设备会设置补光灯进行补光，以保证暗光及夜色场景下，能够有良好的成像效果。
相关技术中，如图1所示，补光灯500采用菲涅尔透镜和反光碗的设计结构，致使补光灯开孔处的外观相比于摄像头模组600开孔处的外观比较突兀，因此使得电子设备的外观一致性较差。
发明内容
本申请实施例的目的是提供一种镜头模组及电子设备，能够实现电子设备的补光灯和摄像头模组的外观达到一致性的效果。
为了解决上述技术问题，本申请是这样实现的：
本申请实施例提供了一种镜头模组，包括：
光源；
镜头，所述镜头的数量为多个，且多个所述镜头间隔设置，其中部分所述镜头用于组成摄像头模组；至少一个所述镜头与所述光源相对设置，以组成补光灯；沿所述镜头的光轴方向，所述镜头具有第一侧和第二侧，所述光 源和所述摄像头模组的成像器件均位于所述第一侧；所述光源发出的光线由所述第一侧进入所述光源对应的至少一个所述镜头，再从所述第二侧射出。
本申请实施例提供了一种电子设备，包括上述的镜头模组。
在本申请实施例中，至少一个镜头与光源相对设置，以组成补光灯。光源位于镜头的第一侧，光源发出的光线由第一侧进入镜头，再从第二侧射出。此方案中，将补光灯设计为光源加镜头的结构形式，能够让补光灯呈现出摄像头模组的外观，因此将补光灯与摄像头模组放在一起进行外观堆叠设计时，能够提升电子设备的外观一致性和协调性。
附图说明
图1是相关技术中的补光灯与摄像头模组的堆叠排布示意图；
图2是本申请实施例公开的电子设备中补光灯与摄像头模组的堆叠排布示意图；
图3是本申请实施例公开的镜头模组中补光灯的结构示意图；
图4是本申请实施例公开的镜头模组中补光灯的光路示意图；
图5是本申请实施例公开的镜头模组中补光灯的镜头和光源的排布结构图。
附图标记说明：
100-光源、200-镜头、210-镜筒、220-镜片组、221-第一透镜、222-第一
透镜、223-第三透镜、2231-第一弧形面、2232-第二弧形面、230-光阑、240-固定圈、250-电路板、260-容纳空间、300-摄像头模组、400-补光灯。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳 动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
下面结合附图，通过具体的实施例及其应用场景对本申请实施例提供的镜头模组及电子设备进行详细地说明。
请参考图2至图5，本申请实施例公开一种镜头模组，该镜头模组应用于电子设备中。所公开的镜头模组包括光源100和镜头200。
镜头200的数量为多个，且多个镜头200间隔设置，其中部分镜头200用于组成摄像头模组300。摄像头模组300用于实现电子设备的拍摄功能。这里可以将用于组成摄像头模组300的镜头200作为第一镜头，第一镜头与感光芯片相对设置，环境光线经由第一镜头射入感光芯片，从而实现拍摄功能。感光芯片与其成像原理为公知技术，本文不作限制。
沿镜头200的光轴方向，镜头200具有第一侧和第二侧，摄像头模组的成像器件位于第一侧。这里的成像器件包括上述的感光芯片。这里的第二侧至第一侧的方向可以是环境光的入射方向，可以理解为环境光从第二侧进入镜头200，然后再从第一侧射出镜头200，射入到感光芯片上。摄像头模组300中的镜头200即为此种环境光射入方向。
至少一个镜头200与光源100相对设置，以组成补光灯400。这里可以将组成补光灯400的镜头200作为第二镜头。补光灯400可以用于照明，或者当用户在较暗的环境下拍摄时，补光灯400可以对拍摄场景进行补光。光源100位于第一侧，光源100发出的光线由第一侧进入对应的至少一个镜头200，再从第二侧射出。本申请中的补光灯400的光线传输方向与环境光的传 输方向相反。补光灯400的光线由电子设备内通过第二镜头射出至环境中，而摄像头模组300中是环境光通过第一镜头射入至电子设备中被感光芯片接收。
可选地，补光灯400的光源100可以为LED(Light Emitting Diode，半导体发光二极管)灯、高压钠灯、金卤灯等，当然补光灯的光源100还可以为其他结构本文不作限制。
本申请公开的实施例中，将补光灯400设计为光源100加镜头200的结构形式，能够让补光灯400呈现出摄像头模组300的外观，因此将补光灯400与摄像头模组300放在一起进行外观堆叠设计时，能够提升电子设备的外观一致性。另外，本方案中的补光灯400与摄像头模组300放在一起进行外观堆叠设计时，使得摄像头模组300与补光灯400完美融合，进而提高了电子设备的协调性。
相关技术中，补光灯500中采用菲涅尔透镜和反光碗的设计结构，菲涅尔透镜和反光碗通常为高亮色调，以对补光灯500发射的光线进行反射，从而提高补光灯500的亮度。因此相关技术中的补光灯500外观颜色通常偏黄白色。其与摄像头模组600的镜头的颜色偏差较大。而本申请公开的方案中，光源100加镜头200的结构形式，使得摄像头模组300的镜头200颜色与补光灯400的镜头200的颜色一致，因此进一步提高了电子设备的外观一致性和协调性。
另外，相关技术中的补光灯500设置有菲涅尔透镜或反光碗，光源发出的部分光线通过菲涅尔透镜或反光碗反射后射出。相关技术中的补光灯500中照射的光线较为分散，因此亮度较差。而本申请公开的实施例中，光源100发出的光线通过镜头200进行收光，以使得光源100发出的光线进行收拢，因此本申请中补光灯400的发光亮度较高。
可选地，镜头200可以包括镜筒210和镜片组220，镜片组220位于镜筒210内，镜片组220包括多个沿镜筒210的轴线方向间隔设置的透镜，光 源100与镜片组220相对设置。镜片组220的多个透镜可以为凸透镜，也可以为凹透镜，还可以为凸透镜和凹透镜的组合结构。
上述实施例中，补光灯400的镜头200的外观色彩可以与电子设备中摄像头模组300的镜头200的外观色彩相同。具体地，补光灯400的镜头200的外观色彩可以为黑色。例如，镜筒210使用黑色注塑件，也可以用金属件做表面黑化处理，当然其他内部结构外观色彩也可以为黑色。
为了使得光源100投射的光线角度范围能够覆盖镜头200的视场范围，在另一种可选的实施例中，光源100的出光面与组成补光灯400的镜头200的焦平面相重合。镜头200的焦平面是指与镜头200的光轴相垂直，且包含焦点的平面，根据投影原理可知，焦点是将光线汇聚后所形成的点，焦点处能够形成清晰的图像。此方案中，将光源100的出光面放置在镜头200的焦平面上。由投影原理可知，环境光由第二侧射入镜头200，通过镜片组220后在镜头200的焦平面的焦点处汇集，焦点处汇集的光线能够覆盖整个镜头200的视场范围。同理，将光源100的出光面与镜头200的焦平面相重合。此时光源100从镜头200的焦平面处向外投射光线，因此光源100发出的光线能够覆盖整个镜头200的视场范围，从而进一步提高了补光灯400的光学性能。
上述实施例中，镜头200要配合尽可能收拢正向前发射的光，如果收拢的光分布角度上下不一样，会造成补光灯400的亮度和颜色偏差比较大。基于此，在另一种可选的实施例中，组成补光灯400的镜头200的主光线角度可以小于8°。这里的主光线角度是主光线与法线的夹角，主光线为通过镜头200中心的光线，也可以理解为通过镜头200的光阑230中心的光线。主光线会照射在上述的焦平面上，这里的焦平面可以理解为像面，也可以理解为光源100的发光面，发光面的法线(垂直于发光面的线即为发光面的法线)与主光线的夹角即为主光线角度(chief ray angle，CRA)，主光线角度越小，镜头200的收光效果越好，因此使得补光灯400的发光亮度和颜色越均匀， 光学性能越好。
在另一种可选的实施例中，镜头200还可以包括光阑230，光阑230用于限制镜头200的通光量，光阑230设置于任意两个透镜之间。光阑230的通光量的大小通常采用F数来表示，F数的具体概念为公知常识，本文不再赘述。F数越小，光阑230越大，镜头200的通光量越大；F数越大，光阑230越小，镜头200的通光量越小。此时，在其他结构件都通用的情况下，通过改变光阑230的大小就可以改变补光灯400的亮度，同时，通过改变光阑230的大小可以调控环境光进入镜头200的程度。因此使得补光灯400的光学性能更好。
上述实施例中，F数越小，光阑230越大，镜头200通光量越大；F数越大，光阑230越小，镜头200的通光量越小。然而F数越小，意味着光阑230越大，光阑230越大意味者光阑230上用于通光的通孔的尺寸越大，通孔的尺寸越大，用户更容易通过通孔看到补光灯400的内部器件，例如，光源100。因此F数越小，虽然使得光源100通过镜头的能量会更高，补光灯的亮度会更高，但是也更容易发生器件外漏的现象。
在另一种可选的实施例中，光阑230的F数大于0.7。光阑230的F数在此范围内，能够保证补光灯400的器件不容易外露。
上述实施例中，镜片组220内的透镜的数量较多，会导致镜头200的光能穿透率降低，镜片组220内的透镜的数量较少，镜头200的收光效果较差。
基于此，在另一种可选的实施例中，镜片组220包括第一透镜221、第二透镜222和第三透镜223，第一透镜221、第二透镜222、第三透镜223和光源100依次间隔排布。此方案中，镜头200的数量为三个，既能够保证镜头200具有较好的透光率，又保证镜头200具有较好的收光效率。
上述实施例中，第一透镜221、第二透镜222和第三透镜223可以使用注塑成型工艺，第一透镜221、第二透镜222和第三透镜223可以使用相同的光学材料制作，例如，第一透镜221、第二透镜222和第三透镜223均可 以使用PMMA(Polymeric Methyl Methacrylate，聚甲基丙烯酸甲酯)或者PC(Polycarbonate，聚碳酸酯)等材料制作，也可以使用不同的光学材料制作，例如，PMMA和PC的混合材料。
为了提高镜头200的透光率，在另一种可选的实施例中，镜片组220的每个透镜均可以设置有增透膜。此方案中，每个透镜可以做增透膜镀膜处理，从而进一步提高镜头200的透光率，进而不容易影响补光灯400的发光效率。
可选地，增透膜可以采用氟化镁、氧化钛、硫化铅、硒化铅等材料制作，当然还可以采用其他材料制作，本文不作限制。
在另一种可选的实施例中，第一透镜221可以具有第一光焦度，第二透镜222可以具有第二光焦度，第三透镜223可以具有第三光焦度，第一光焦度可以小于零，此时第一光焦度为负值。第二光焦度和第三光焦度均可以大于零，此时第二光焦度和第三光焦度均为正值。
光焦度是表征光学系统偏折光线的能力。当光焦度的数值越大，平行光束弯折的越厉害，其折射角度越大。光焦度为正值时，光线的屈折是汇聚性的。光焦度为负值时，光线的屈折是发散的。
此方案中，由于光源100发出的光线为散射光，因此为了防止光线四散，靠近光源100的第二透镜222和第三透镜223的光焦度可以为正值，从而将光线会聚。而光线通过第一透镜221后射出镜头200，因此第一透镜221的光焦度可以为负值，从而使得光线发散，进而增大补光灯400的光照范围。此方案能够进一步提高补光灯400的光学性能。
可选地，第一透镜221可以为凹透镜，第二透镜222和第三透镜223可以均为凸透镜。
为了进一步提高补光灯400的光学性能，在另一种可选的实施例中，第一光焦度与第三光焦度的比值可以大于-0.78，且小于-0.58。第二光焦度与第三光焦度的比值可以大于0.83，且小于0.93。此方案中，第一光焦度与第三光焦度的比值以及第二光焦度与第三光焦度的比值，如果低于下限值，则其 光焦度不足，导致光源100的发光面的大小和镜头200难以匹配。
第一光焦度与第三光焦度的比值以及第二光焦度与第三光焦度的比值，如果超过上限，则会导致整个镜头200的球差过大，球差过大是指镜头200的边缘部分光线所发生的折射弯曲程度比镜头中心的光线发生的弯曲程度大的多，因此补光灯的能量利用率降低。
因此第一光焦度与第三光焦度的比值以及第二光焦度与第三光焦度的比值，在上述范围内，既能够保证镜头200光焦度充足，使得光源100的发光面与镜头200的匹配性更好，同时补光灯400的能量利用效率也更好。
由于第三透镜223更靠近光源100，因此第三透镜223的收光性是决定补光灯400的光学性能的重要因素。为了进一步提高第三透镜223的收光性能，在另一种可选的实施例中，第三透镜223具有第一弧形面2231和第二弧形面2232，第一弧形面2231可以位于光源100所在的一侧，第二弧形面2232可以位于第二透镜222所在的一侧，第一弧形面2231和第二弧形面2232的凸出方向均可以朝向第二透镜222。此时，第三透镜223形状为弯月形结构，第三透镜223的表面向外弯曲，凹向光源100。这里的第三透镜223的表面向外弯曲是指朝向镜头200的第二侧弯曲。此时，第三透镜223的收光性能更好，因此进一步提高补光灯400的能量利用率。
进一步地，第一弧形面2231的半径为第一曲率值，第二弧形面2232的半径为第二曲率值，第一曲率值与第二曲率值的比值可以大于6.5，且小于10。
此方案中，第一曲率值与第二曲率值的比值如果低于下限，则第三透镜223的光焦度不足，导致光线角度与第三透镜223表面夹角过大，杂散光严重。第一曲率值与第二曲率值的比值如果超过上限，则第三透镜223的第二表面过于弯曲，造成场曲过大，中心和边缘离焦程度差异过大，投射出的光斑色彩一致性差。因此第一曲率值与第二曲率值的比值在上述范围内第三透镜223具有好的收光性能，因此补光灯400的光线性能较好。
在另一种可选的实施例中，镜头200还包括多个固定圈240，每个透镜可以通过相邻的两个固定圈240夹持固定。此方案中，每个透镜通过相连的两个固定圈240夹持固定，因此放置相邻的两个透镜之间发生磨损，从而提高镜头200的安全性和可靠性。
上述实施例中，光源100可以设置于镜筒210之外，此时，光线容易散射至镜头200之外，从而发生漏光现象。在另一种可选的实施例中，镜头模组还可以包括电路板250，电路板250可以封盖在镜筒210的一端，电路板250与镜筒210围成容纳空间260，光源100与电路板250电连接，且光源100可以位于容纳空间260内。此方案中，光源100位于容纳空间260内，且电路板250封盖镜筒210的一端，因此补光灯400不容易发生漏光现象，从而进一步提高了补光灯400的光学性能。
另外，光源100可以位于容纳空间260内，光源100不容易与电子设备的其他部件发生干涉或碰撞，因此进一步提高了补光灯400的安全性和可靠性。
可选地，电路板250可以为印刷电路板，或者电路板250可以为软硬结合板，再或者电路板250可以包括贴合设置的柔性电路板和补强板。
在另一种可选的实施例中，摄像头模组300的感光芯片也可以与电路板250电连接，能够提高电路板250的集成度，同时能够简化电子设备的结构。
在另一种可选的实施例中，镜头200还可以包括驱动机构，驱动机构可以与镜片组220相连接，驱动机构用于驱动镜片组220沿镜筒210的轴线方向移动。此方案中，通过驱动镜片组220移动，从而使得增大或减小光源100与镜片组220的距离，进而对补光灯400的亮度进行调节，从而增加补光灯400的应用场景。
基于本申请实施例公开的镜头模组，本申请实施例还公开一种电子设备，所公开的电子设备包括上文任一实施例所述的镜头模组。
相关技术中的补光灯500的外观和摄像头模组600的外观差异非常大， 因此两者很难一起同步做设计堆叠，本申请公开的实施例中，补光灯400的外形结构与摄像头模组300的外形结构一致，因此补光灯400与摄像头模组300能够一起做堆叠排布，使得摄像头模组300与补光灯400完美融合，从而使得电子设备的整体外观的协调性更好。
本申请实施例公开的电子设备可以是智能手机、平板电脑、电子书阅读器、可穿戴设备(例如智能手表)、电子游戏机等设备，本申请实施例不限制电子设备的具体种类。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (13)

  1. 一种镜头模组，包括：
    光源；
    镜头，所述镜头的数量为多个，且多个所述镜头间隔设置，其中部分所述镜头用于组成摄像头模组；至少一个所述镜头与所述光源相对设置，以组成补光灯；沿所述镜头的光轴方向，所述镜头具有第一侧和第二侧，所述光源和所述摄像头模组的成像器件均位于所述第一侧；所述光源发出的光线由所述第一侧进入所述光源对应的至少一个所述镜头，再从所述第二侧射出。
  2. 根据权利要求1所述的镜头模组，其中，所述镜头包括镜筒、镜片组和光阑，所述镜片组位于所述镜筒内，所述镜片组包括多个沿所述镜筒的轴线方向间隔设置的透镜，所述光源与所述镜片组相对设置，所述光阑设置于任意两个所述透镜之间。
  3. 根据权利要求2所述的镜头模组，其中，所述光阑的F数大于0.7。
  4. 根据权利要求2所述的镜头模组，其中，所述镜片组包括第一透镜、第二透镜和第三透镜，所述第一透镜、所述第二透镜、所述第三透镜和所述光源依次间隔排布。
  5. 根据权利要求4所述的镜头模组，其中，所述第一透镜具有第一光焦度，所述第二透镜具有第二光焦度，所述第三透镜具有第三光焦度，所述第一光焦度小于零，所述第二光焦度和所述第三光焦度均大于零。
  6. 根据权利要求5所述的镜头模组，其中，所述第一光焦度与所述第三光焦度的比值大于-0.78，且小于-0.58；所述第二光焦度与所述第三光焦度的比值大于0.83，且小于0.93。
  7. 根据权利要求6所述的镜头模组，其中，所述第三透镜具有第一弧形面和第二弧形面，所述第一弧形面位于所述光源所在的一侧，所述第二弧形面位于所述第二透镜所在的一侧，所述第一弧形面和所述第二弧形面的凸出方向均朝向所述第二透镜，所述第一弧形面的半径为第一曲率值，所述第二 弧形面的半径为第二曲率值，所述第一曲率值与所述第二曲率值的比值大于6.5，且小于10。
  8. 根据权利要求2所述的镜头模组，其中，所述镜片组的每个所述透镜均设置有增透膜。
  9. 根据权利要求2所述的镜头模组，其中，所述镜头还包括多个固定圈，每个所述透镜通过相邻的两个所述固定圈夹持固定。
  10. 根据权利要求2所述的镜头模组，其中，所述镜头模组还包括电路板，所述电路板封盖在所述镜筒的一端，所述电路板与所述镜筒围成容纳空间，所述光源与所述电路板电连接，且所述光源位于所述容纳空间内。
  11. 根据权利要求1所述的镜头模组，其中，所述光源的出光面与组成所述补光灯的所述镜头的焦平面相重合。
  12. 根据权利要求1所述的镜头模组，其中，组成所述补光灯的所述镜头的主光线角度小于8°。
  13. 一种电子设备，包括权利要求1至12中任一项所述的镜头模组。
PCT/CN2023/118172 2022-09-15 2023-09-12 镜头模组及电子设备 WO2024055949A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202211121640.9 2022-09-15
CN202211121640.9A CN115933280A (zh) 2022-09-15 2022-09-15 镜头模组及电子设备

Publications (1)

Publication Number Publication Date
WO2024055949A1 true WO2024055949A1 (zh) 2024-03-21

Family

ID=86649559

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/118172 WO2024055949A1 (zh) 2022-09-15 2023-09-12 镜头模组及电子设备

Country Status (2)

Country Link
CN (1) CN115933280A (zh)
WO (1) WO2024055949A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115933280A (zh) * 2022-09-15 2023-04-07 维沃移动通信有限公司 镜头模组及电子设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011133836A (ja) * 2009-12-24 2011-07-07 Shinten Sangyo Co Ltd リニア駆動ｌｅｄ発光装置を備えたカメラ付き携帯電話
CN102566204A (zh) * 2010-12-17 2012-07-11 思考电机（上海）有限公司 有光照射功能的变焦透镜驱动装置、相机及移动终端装置
CN205049818U (zh) * 2015-09-11 2016-02-24 深圳市众坤高森科技有限公司 光斑均化器及补光灯
DE102019207178A1 (de) * 2019-05-16 2020-11-19 Continental Automotive Gmbh Bildsensor mit einer Beleuchtungsvorrichtung
CN115933280A (zh) * 2022-09-15 2023-04-07 维沃移动通信有限公司 镜头模组及电子设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011133836A (ja) * 2009-12-24 2011-07-07 Shinten Sangyo Co Ltd リニア駆動ｌｅｄ発光装置を備えたカメラ付き携帯電話
CN102566204A (zh) * 2010-12-17 2012-07-11 思考电机（上海）有限公司 有光照射功能的变焦透镜驱动装置、相机及移动终端装置
CN205049818U (zh) * 2015-09-11 2016-02-24 深圳市众坤高森科技有限公司 光斑均化器及补光灯
DE102019207178A1 (de) * 2019-05-16 2020-11-19 Continental Automotive Gmbh Bildsensor mit einer Beleuchtungsvorrichtung
CN115933280A (zh) * 2022-09-15 2023-04-07 维沃移动通信有限公司 镜头模组及电子设备

Also Published As

Publication number Publication date
CN115933280A (zh) 2023-04-07

Similar Documents

Publication Publication Date Title
WO2024055949A1 (zh) 镜头模组及电子设备
JP4677256B2 (ja) 発光装置
US20120176801A1 (en) Flash lens and flash module employing the same
CN111447313A (zh) 移动终端
US20230075148A1 (en) Camera module and mobile terminal
CN111510610A (zh) 移动终端
CN108241839A (zh) 生物辨识装置
TW201323934A (zh) 行動電話之閃光燈用的透鏡結構
WO2024199164A1 (zh) 补光灯及电子设备
KR20090128103A (ko) 엘이디 플래시 렌즈
CN212381271U (zh) 移动终端
CN212343814U (zh) 移动终端
CN210183426U (zh) 补光组件、拍摄组件及移动终端
CN212381272U (zh) 摄像头模组及移动终端
TW201736938A (zh) 投影機
WO2018157653A1 (zh) 一种移动终端的进光结构及移动终端
CN210899305U (zh) 外挂镜头组件及电子设备
KR20100068313A (ko) 발광체 플래시 렌즈
TWI555396B (zh) 發光模組及其影像監控裝置
WO2021232911A1 (zh) 移动终端
WO2022078023A1 (zh) 镜头、投影光机以及近眼显示系统
KR100942138B1 (ko) Ｌｅｄ용 집광 렌즈
CN113253558A (zh) 光源组件、成像装置和电子装置
CN105182673A (zh) 投影仪
WO2021232959A1 (zh) 移动终端

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23864681

Country of ref document: EP

Kind code of ref document: A1