WO2020244646A1 - 具有装饰膜的摄像头模组和终端 - Google Patents

具有装饰膜的摄像头模组和终端 Download PDF

Info

Publication number
WO2020244646A1
WO2020244646A1 PCT/CN2020/094755 CN2020094755W WO2020244646A1 WO 2020244646 A1 WO2020244646 A1 WO 2020244646A1 CN 2020094755 W CN2020094755 W CN 2020094755W WO 2020244646 A1 WO2020244646 A1 WO 2020244646A1
Authority
WO
WIPO (PCT)
Prior art keywords
camera module
decorative film
layer
camera
lens
Prior art date
Application number
PCT/CN2020/094755
Other languages
English (en)
French (fr)
Inventor
胡彬
李庆孟
廖朝清
徐汀
徐延翔
王建文
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2020244646A1 publication Critical patent/WO2020244646A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/45—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from two or more image sensors being of different type or operating in different modes, e.g. with a CMOS sensor for moving images in combination with a charge-coupled device [CCD] for still images
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices

Definitions

  • This application relates to the field of cameras, and more specifically, to a camera module and a terminal with a decorative film.
  • the camera function has become an important feature of smart terminals and the main indicator for evaluating terminal performance.
  • the requirements for the appearance of the camera module are getting higher and higher.
  • the camera is generally set in the lens barrel. Without any processing, the surface of the lens barrel of the camera module can be seen from the outside of the terminal through the light hole.
  • the prior art adopts the method of coating the top of the lens barrel to reduce the reflection of light, which can achieve the black effect, thereby achieving the visual effect of the integrated color of the camera. .
  • the present application provides a camera module and a terminal with a decorative film, which can achieve a black or specific pattern of the camera module, and improve the appearance effect of the camera module and the yield rate of the camera module.
  • a camera module including: a lens group; a lens barrel, including a main body and an end, the end is located at the top of the main body, and the main body encloses a receiving space for receiving the A lens group, the end has a first surface, the first surface is located on the light incident side and is perpendicular to the optical axis direction of the lens group, and the end is provided with an opening for the light to enter from the opening
  • the lens group a decorative film, including: a decorative layer covering part or all of the first surface for absorbing visible light incident on the first surface; a glue layer located on the decorative layer and the first surface Between the surfaces, it is used to attach the decorative layer to the first surface.
  • a decorative film is attached to the first surface of the lens barrel, and the decorative layer of the decorative film can absorb visible light incident on the first surface, so that the decorative film appears black, so that the camera mold can be viewed from the outside.
  • the first surface of the lens barrel of the group presents a black visual effect, which improves the appearance of the camera module.
  • the decorative film is attached to the first surface of the lens barrel through an adhesive layer, which can easily connect the decorative film to the lens barrel. Laminating the first surface of the lens barrel and removing the decorative film from the first surface of the lens barrel, compared with the coating method in the prior art, the yield rate of the camera module can be improved and the cost can be reduced.
  • the first surface of the lens barrel with the decorative film also appears black.
  • the first surface of the barrel and the black components around it present a visual effect of color integration, which can improve the appearance of the camera module.
  • the light incident on the first surface is the light incident on the surface of the decorative film.
  • the decoration layer includes: a substrate layer, the substrate layer is in the form of a sheet, and has opposite second and third surfaces, and the second surface Toward the light incident side; a micro-nano structure layer, located on the second surface of the substrate layer, including a plurality of convex structures or a plurality of concave structures; an ink layer, coated on the substrate layer On the third surface, it is located between the substrate layer and the glue layer.
  • the decorative film includes a micro-nano structure layer and an ink layer. Through the cooperation of the micro-nano structure layer and the ink layer, all visible light incident on the decorative film can be absorbed, so that the black purity of the decorative film is higher, that is, The color of the decorative film is darker.
  • the cross-sectional shape of the convex structure or the concave structure is any one of the following shapes: equilateral triangle, semicircle, rectangle, trapezoid, ellipse , Cone.
  • the cross-sectional shape of the protruding structure or the recessed structure of the micro-nano structure is equilateral triangle, semicircle, rectangle, trapezoid, ellipse, or cone, it can lock the light incident on the micro-nano structure layer and reduce the light reflection.
  • the material of the substrate layer is polyethylene terephthalate PET.
  • the material of the adhesive layer is optically transparent adhesive OCA.
  • the decorative film is an annular decorative film
  • the center of the annular decorative film and the center of the annular surface are both located at all On the optical axis, the inner diameter of the annular decorative film is greater than or equal to the inner diameter of the annular surface, and the outer diameter of the annular decorative film is greater than or equal to the outer diameter of the annular surface.
  • the shape of the first surface is similar to the shape of the decorative film.
  • the inner diameter of the decorative film is greater than or equal to the inner diameter of the first surface so that the decorative film does not interfere with the light entering the camera module.
  • the outer diameter of the decorative film is greater than or equal to the first surface. The outer diameter of the surface enables the decorative film to completely cover the first surface, so that the first surface of the lens barrel is completely black, and the appearance effect is improved.
  • the inner diameter of the annular decorative film is greater than the FOV of the first surface position.
  • the inner diameter of the decorative film is greater than the angle of view at the first surface position, so that the decorative film does not affect the light incident inside the camera module, and does not affect the performance of the camera module.
  • the micro-nano structure layer is used to absorb visible light incident on the micro-nano structure layer, and the ink layer is a black ink layer.
  • the thickness of the decorative film satisfies at least one of the following conditions: the thickness of the micro-nano structure layer ranges from 300 nm to 700 nm; the thickness of the substrate layer The thickness of the ink layer ranges from 50 microns to 200 microns; the thickness of the ink layer ranges from 5 microns to 15 microns; and the thickness of the glue layer ranges from 20 microns to 50 microns.
  • the thickness of the decorative film ranges from 0.1 mm to 0.2 mm.
  • the thickness range of the decorative film can be selected according to actual needs, and the thickness of the decorative film is relatively thin, so that other components will not be affected when the camera module is installed on the terminal.
  • a camera module including: a lens group; a lens barrel, including a main body and an end, the end is located at the top of the main body, and the main body encloses a receiving space for receiving the A lens group, the end has a first surface, the first surface is located on the light incident side and is perpendicular to the optical axis direction of the lens group, and the end is provided with an opening for the light to enter from the opening
  • the lens group a decorative film, including: a decorative layer, covering part or all of the first surface, for when the camera module is installed on the terminal, the pattern of the decorative layer is the same as the pattern of the terminal housing Or similar; an adhesive layer, located between the decorative layer and the first surface, for attaching the decorative layer to the first surface.
  • a decorative film is attached to the first surface of the lens barrel.
  • the pattern of the decorative film is the same as or similar to the pattern of the terminal housing, so that the camera mold can be viewed from the outside.
  • the first surface of the lens barrel of the group presents the same visual effect as the terminal shell pattern, which improves the appearance of the camera module.
  • the decorative film is attached to the first surface of the lens barrel through an adhesive layer, which can be easily decorated. The film is attached to the first surface of the lens barrel and the decorative film is removed from the first surface of the lens barrel. Compared with the coating method in the prior art, the yield rate of the camera module can be improved and the cost can be reduced.
  • the pattern of the decorative film is the same or similar to the pattern of the terminal housing, so from the appearance, the first surface of the lens barrel and the terminal housing present an integrated visual effect. It can improve the appearance of the camera module.
  • the decoration layer includes: a substrate layer, the substrate layer is in the form of a sheet, and has opposite second and third surfaces, and the second surface Toward the light incident side; a micro-nano structure layer, located on the second surface of the substrate layer, including a plurality of convex structures or a plurality of concave structures; an ink layer, coated on the substrate layer On the third surface, it is located between the substrate layer and the glue layer.
  • the decorative film includes a micro-nano structure layer and an ink layer. Through the cooperation of the micro-nano structure layer and the ink layer, the decorative film can present the same or similar pattern as the terminal shell.
  • the cross-sectional shape of the convex structure or the concave structure is any one of the following shapes: equilateral triangle, semicircle, rectangle, trapezoid, ellipse , Cone.
  • the material of the substrate layer is polyethylene terephthalate PET.
  • the material of the adhesive layer is optically transparent adhesive OCA.
  • the pattern includes colors and/or patterns
  • the color of the decorative layer and the color of the terminal housing are the same or similar in hue, brightness and purity, and /Or
  • the pattern of the decorative layer and the pattern of the terminal shell are the same or similar in pattern or figure.
  • the color of the decoration layer and the color of the terminal housing belong to the same color series.
  • the decorative film is an annular decorative film
  • the center of the annular decorative film and the center of the annular surface are both located at all On the optical axis, the inner diameter of the annular decorative film is greater than or equal to the inner diameter of the annular surface, and the outer diameter of the annular decorative film is greater than or equal to the outer diameter of the annular surface.
  • the shape of the first surface is similar to the shape of the decorative film.
  • the inner diameter of the decorative film is greater than or equal to the inner diameter of the first surface so that the decorative film does not interfere with the light entering the camera module.
  • the outer diameter of the decorative film is greater than or equal to the first surface. The outer diameter of the surface enables the decorative film to completely cover the first surface, so that the first surface of the lens barrel presents the same or similar pattern as the terminal housing, which improves the appearance effect.
  • the inner diameter of the annular decorative film is greater than the FOV of the first surface position.
  • the inner diameter of the decorative film is greater than the angle of view at the first surface position, so that the decorative film does not affect the light incident inside the camera module, and does not affect the performance of the camera module.
  • the thickness of the decorative film satisfies at least one of the following conditions: the thickness of the micro-nano structure layer ranges from 300 nm to 700 nm; The thickness of the ink layer ranges from 50 microns to 200 microns; the thickness of the ink layer ranges from 5 microns to 15 microns; and the thickness of the glue layer ranges from 20 microns to 50 microns.
  • the thickness of the decorative film ranges from 0.1 mm to 0.2 mm.
  • the thickness range of the decorative film can be selected according to actual needs, and the thickness of the decorative film is relatively thin, so that other components will not be affected when the camera module is installed on the terminal.
  • a terminal including: a display screen, a circuit board, a housing, a camera protection lens, and the camera module of the first aspect or any possible implementation of the first aspect, the display
  • the screen, the circuit board, and the camera module are arranged in the housing, the display screen and the camera module are respectively electrically connected to the circuit board;
  • the camera protection lens is arranged in the housing Physically, the camera protection lens is provided with a light-passing hole, and the center of the light-passing hole is located on the optical axis of the lens group for light to enter the camera module through the light-passing hole, so
  • the camera module is movable along the optical axis direction of the lens group relative to the camera protection lens.
  • a decorative film is attached to the first surface of the lens barrel.
  • the decorative layer of the decorative film can absorb visible light incident on the first surface, so that the decorative film appears black, so that the camera mold can be viewed from the outside.
  • the first surface of the lens barrel of the group presents a black visual effect, which improves the appearance of the camera module.
  • the decorative film is attached to the first surface of the lens barrel through an adhesive layer, which can easily connect the decorative film to the lens barrel. Laminating the first surface of the lens barrel and removing the decorative film from the first surface of the lens barrel, compared with the coating method in the prior art, the yield rate of the camera module can be improved and the cost can be reduced.
  • the first surface of the lens barrel with the decorative film also appears black.
  • the first surface of the barrel and the black components around it present a visual effect of color integration, which can improve the appearance of the camera module.
  • the decorative film is configured to cover at least a part of the area of the first surface, and the outer edge of the at least part of the area is outside the visual field.
  • the range of the decorative film covering the first surface is related to the distance between the camera module and the camera protective lens.
  • the decorative film is configured to cover at least part of the area of the first surface, and at least part of it
  • the outer edge of the area is outside the field of view, ensuring that when the camera module moves along the optical axis relative to the camera protection lens, when viewing from the outside of the terminal toward the camera module, only the black of the decorative film can be seen, and the lens barrel is not visible
  • Other parts such as the part of the first surface of the lens barrel that is not covered by the decorative film, the body part of the lens barrel, and so on.
  • the decorative film is configured to cover the entire area of the first surface, or the decorative film is configured to cover the field of view.
  • the range of the decorative film covering the first surface is related to the distance between the camera module and the camera protective lens.
  • the decorative film is configured to cover the entire area of the first surface, or the field of view .
  • the shortest distance between the camera module and the camera protection lens is not less than a preset value.
  • the shortest distance between the camera module and the camera protection lens is the distance between the surface of the decorative film on the light incident side and the surface of the camera protection lens facing away from the light incident.
  • the preset value is a safety distance
  • the setting of the preset value can make the decorative film not touch or squeeze the camera protection lens during the movement of the camera module relative to the camera protection lens along the optical axis.
  • a terminal including: a display screen, a circuit board, a housing, a camera protection lens, and the camera module according to the second aspect or any possible implementation of the second aspect, the display screen , The circuit board and the camera module are arranged in the housing, the display screen and the camera module are respectively electrically connected to the circuit board; the camera protection lens is arranged in the housing Above, the camera protection lens is provided with a light-passing hole, and the center of the light-passing hole is located on the optical axis of the lens group for light to enter the camera module through the light-passing hole.
  • the camera module is movable along the optical axis direction of the lens group relative to the camera protection lens.
  • a decorative film is attached to the first surface of the lens barrel.
  • the pattern of the decorative film is the same as or similar to the pattern of the terminal housing, so that the camera mold can be viewed from the outside.
  • the first surface of the lens barrel of the group presents the same visual effect as the terminal shell pattern, which improves the appearance of the camera module.
  • the decorative film is attached to the first surface of the lens barrel through an adhesive layer, which can be easily decorated. The film is attached to the first surface of the lens barrel and the decorative film is removed from the first surface of the lens barrel. Compared with the coating method in the prior art, the yield rate of the camera module can be improved and the cost can be reduced.
  • the pattern of the decorative film is the same or similar to the pattern of the terminal housing, so from the appearance, the first surface of the lens barrel and the terminal housing present an integrated visual effect. It can improve the appearance of the camera module.
  • the decorative film is configured to cover at least a part of the area of the first surface, and the outer edge of the at least part of the area is outside the visual field.
  • the range of the decorative film covering the first surface is related to the distance between the camera module and the camera protective lens.
  • the decorative film is configured to cover at least part of the area of the first surface, and at least part of it
  • the outer edge of the area is outside the field of view, ensuring that when the camera module moves along the optical axis relative to the camera protection lens, when viewing from the outside of the terminal toward the camera module, only the pattern presented by the decorative film can be seen, and the lens barrel is not visible
  • Other parts such as the part of the first surface of the lens barrel that is not covered by the decorative film, the body part of the lens barrel, and so on.
  • the decorative film is configured to cover the entire area of the first surface, or the decorative film is configured to cover the field of view.
  • the range of the decorative film covering the first surface is related to the distance between the camera module and the camera protective lens.
  • the decorative film is configured to cover the entire area of the first surface, or the field of view .
  • the shortest distance between the camera module and the camera protection lens is not less than a preset value.
  • Fig. 1 is a schematic diagram of a terminal according to an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a camera module according to an embodiment of the present application.
  • Fig. 3 is a schematic structural diagram of a conventional camera module
  • FIG. 4 is a schematic partial cross-sectional view of a decorative film according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a camera module with a decorative film according to an embodiment of the present application.
  • Fig. 6 is a schematic diagram of a decorative film of an embodiment of the present application.
  • FIG. 7 is a schematic partial cross-sectional view of a decorative film according to an embodiment of the present application.
  • the terminals involved in the embodiments of this application may include handheld devices, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem. It can also include cellular phone, smart phone, personal digital assistant (PDA) computer, tablet computer, handheld device (handset), laptop computer, and machine type Communication (machine type communication, MTC) terminals, point of sales (POS), on-board computers, and other terminals with imaging functions.
  • PDA personal digital assistant
  • MTC machine type Communication
  • POS point of sales
  • the terminal may also be referred to as a terminal device.
  • FIG. 1 shows a schematic diagram of a terminal.
  • the terminal 100 may include a display screen 101, a housing 102, a circuit board (not shown in the figure), a camera module 110 for front shooting and/or a camera module 120 for rear shooting, and a protection The camera protection lens 104 of the camera module and so on.
  • the display screen 101, the circuit board, and the camera module 110 and/or the camera module 120 are arranged in the housing 102.
  • the housing 102 may include a middle frame and a back cover (not shown in the figure), the middle frame and The back cover is combined to form a housing 102, and the middle frame and the back cover form an accommodating space for accommodating the display screen 101, the circuit board, the camera module 110 and/or the camera module 120, and other devices.
  • the display screen 101 and the camera modules 110 and 120 can be respectively connected to the circuit board (including electrical connection and mechanical connection).
  • the camera protection lens 104 is disposed on the housing 102 and covers the camera module 110 and the camera module 120. In some embodiments, when the camera protective lens 104 is used to protect the front camera module 110, the camera protective lens 140 can cover the entire front of the terminal 100, and can be used to protect the camera module 110 and the display screen 101 at the same time; camera protective lens When 104 is used to protect the rear camera module 120, the camera protection lens 104 may only be arranged at a position corresponding to the camera module 120 to protect the camera module 120.
  • the material of the camera protection lens 104 may be glass, sapphire, ceramic, etc., which is not limited in the embodiment of the present application. In some embodiments, the camera protection lens 104 is transparent, so that light outside the terminal 100 can enter the camera module through the camera protection lens 104.
  • the terminal 100 is installed with a camera module 110 and/or a camera module 120.
  • the terminal 100 may be a terminal device with a camera or camera function, such as a mobile phone, a smart phone, a tablet computer, a laptop computer, a video camera, a video recorder, a camera, a smart watch, a smart bracelet, or other devices with a camera or camera function.
  • a mobile phone such as a mobile phone, a smart phone, a tablet computer, a laptop computer, a video camera, a video recorder, a camera, a smart watch, a smart bracelet, or other devices with a camera or camera function.
  • a mobile phone such as a mobile phone, a smart phone, a tablet computer, a laptop computer, a video camera, a video recorder, a camera, a smart watch, a smart bracelet, or other devices with a camera or camera function.
  • the embodiment of the present application is described by taking the terminal 100 as a mobile phone as an example.
  • a camera compact module can be provided on both the front and back of the terminal 100, or only a camera module can be provided on the front or back.
  • the left picture is the front of the mobile phone, and the camera module 110 is installed on the upper part of the mobile phone, which can be used for self-portraits or other objects.
  • the right picture in FIG. 1 is the back of the mobile phone, and the camera module 120 is installed on the upper left part of the mobile phone, which can be used to photograph surrounding scenes or Selfie.
  • the installation positions of the camera module 110 and the camera module 120 are merely illustrative. In some other embodiments, the camera modules 110 and 120 may also be installed in other positions on the mobile phone, such as the camera module 110. It can be installed on the left side of the handset, the upper middle position of the mobile phone, the lower part of the mobile phone (or called the chin) or the four corners of the mobile phone.
  • the camera module 120 can be installed on the upper middle position or upper right corner of the back of the mobile phone.
  • the camera module 110 Or 120 may not be arranged on the main body of the phone, but on a part that can move or rotate relative to the phone. For example, the part may extend, retract or rotate from the main body of the phone.
  • the camera modules 110 and 120 may also be arranged On the protruding edge relative to the main body of the mobile phone, this application does not make any restrictions on the installation position of the camera module.
  • the number of the camera module 110 and the camera module 120 installed is not limited to one, and may be two or more.
  • the terminal 100 may install two or three camera modules 120 on the back.
  • the embodiment of the present application does not impose any limitation on the number of camera modules installed, nor does it impose any limitation on the relative positions of multiple camera modules during installation.
  • the camera modules 110 and 120 can be used to shoot surrounding videos or photos, and can be used to shoot scenes at different distances.
  • the camera module can be used to shoot distant scenes, can be used to shoot near scenes, or can be used to shoot micro Away from the scene.
  • the camera modules 110 and 120 can also be used for selfies.
  • the camera module 120 on the back of the mobile phone shown in the figure can also be used for front cameras, etc., which is not limited in the embodiment of the present application.
  • the terminal 100 shown in FIG. 1 is not limited to include the above devices, and may also include other devices, such as batteries, flashes, fingerprint recognition modules, earpieces, buttons, sensors, etc.
  • the embodiment of the present application only uses a camera.
  • the terminal of the module is described as an example, but the components installed on the terminal 100 are not limited to this.
  • FIG. 2 shows a schematic cross-sectional view of a camera module.
  • the camera module 200 may be the camera module 110 or the camera module 120 shown in FIG. 1.
  • the structure of the camera module 200 will be briefly described below in conjunction with FIG. 2.
  • the following defines the direction side of the object in the optical axis direction as up, and the direction side opposite to the object as down.
  • the definition of the direction in the embodiments of the present application is applicable to each appendix that will be described later. Figure.
  • the orientation descriptions such as “upper” and “lower” in the embodiments of the present application are only used to facilitate the description of the technical solutions of the present application, and are not used to indicate the orientation that the described device or element must have, and therefore cannot be understood as Limitations on the technical solution of this application.
  • the camera module 200 may include a lens assembly 11, a voice coil motor (VCM) 12, a lens holder 13, and an infrared cut filter (also called IRCF) 14. Sensor 15, circuit board 16, etc.
  • VCM voice coil motor
  • IRCF infrared cut filter
  • the lens assembly 11 is used to collect light.
  • the light reflected by the object can be projected onto the surface of the sensor 15 through the lens assembly 11 to generate an optical image.
  • the sensor 15 converts the optical image into an electrical signal.
  • the electrical signal is finally passed through the display or display screen by processing the electrical signal. You can see the image.
  • the lens assembly 11 may include a lens barrel 111 and a lens group 112.
  • the lens group 112 is fixed in the lens barrel 111, and the lens barrel 111 is fixed to the voice coil motor 12 by a screw connection or the like.
  • the lens assembly 11 may be a whole system composed of different lenses (lenses), that is, the lens group 112 includes at least one lens, and the at least one lens included in the lens group 11 may be different or the same.
  • FIG. 2 schematically shows that the lens group 112 includes 3 lenses. It should be understood that the lens group 112 may include more or less lenses, such as 1, 2, 5, 8, or 10. even more.
  • Each lens in the lens group 112 may be a plastic lens, or a glass lens, and may be a spherical lens or an aspheric lens.
  • the lens group 112 is used to form a fixed focal length lens, or a zoom lens, and can also be used to form a standard lens, a short focal lens or a long focal lens.
  • the lens barrel 111 is generally cylindrical and includes a body 111a and an end 111b.
  • the end 111b is located at the top of the body 111a on the light incident side.
  • the upper part of the lens assembly 11 is the light incident side (that is, the light enters
  • the position below the lens assembly is the imaging side (that is, the position where the lens composes the image).
  • the main body 111a encloses an accommodating space for accommodating the lens group 112.
  • the lens group 112 includes at least one lens, and the at least one lens is arranged along the same optical axis in the accommodating space as required. It should be understood that the same optical axis can be understood as the optical axis of the lens group 112.
  • the end portion 111b includes a first surface 111c disposed on the light incident side, and the first surface 111c is perpendicular to the optical axis direction of the lens group 112.
  • the first surface 111c may also be referred to as the upper surface of the lens barrel or the top surface of the lens barrel.
  • the end 111b is provided with an opening 111d for light to enter the lens group 112 from the opening 111d.
  • human eyes can see part or all of the first surface 111c (that is, the top surface of the lens barrel) from the outside of the terminal.
  • the lens barrel 111 may also have a hollow trapezoidal shape (a narrow top and a wide bottom), and its structure is similar to that of the lens barrel in a cylindrical shape, and the detailed description is omitted here.
  • the lens barrel top is used to represent the first surface 111c.
  • the voice coil motor 12 may be used for auto focus (AF) and optical image stabilization (OIS).
  • a lens assembly 11 is fixed on the voice coil motor 12, and the voice coil motor 12 can push the lens assembly 11 up and down during the focusing process to change the focal length of the lens assembly 11 to obtain a clear image.
  • AF auto focus
  • OIS optical image stabilization
  • the lens holder 13 is used to support the entire camera module 200.
  • the lens holder 13 is fixed relative to the terminal.
  • the lens holder 13 is connected to the voice coil motor 12, and the voice coil motor 12 is opposite to the lens holder 13. It can be moved to perform autofocus and optical image stabilization.
  • the movement of the voice coil motor 12 along the optical axis can be used for autofocus, and the movement of the voice coil motor 12 along the vertical optical axis can be used for optical image stabilization.
  • the movement of the voice coil motor 12 along the optical axis can be used for both autofocus and optical image stabilization.
  • the lens holder 13 can be fixed on the circuit board 16.
  • the infrared cut filter 14 is arranged in the lens holder 13, which can eliminate unnecessary light projected on the sensor 15 and prevent the sensor 15 from ghosting, stray light and color cast during imaging, so as to improve its effective resolution And color reproduction. It should be understood that in some camera modules, the filter provided here may also be a filter that filters out other light bands, and the embodiment of the present application is not limited to an infrared cut filter.
  • the sensor 15 is a semiconductor chip with hundreds of thousands to millions of photodiodes on its surface. When irradiated by light, charges are generated and converted into digital signals by the analog-to-digital converter chip.
  • the sensor 15 may be a charge coupled device (CCD) or a complementary metal-oxide conductor device (CMOS).
  • CMOS complementary metal-oxide conductor device
  • the sensor 15 can be fixed on the circuit board 16 and electrically connected to the circuit board 16.
  • the circuit board 16 may be a flexible printed circuit (FPC) or a printed circuit board (printed circuit board, PCB) for transmitting electrical signals.
  • FPC flexible printed circuit
  • PCB printed circuit board
  • the FPC may be a single-sided flexible board, a double-sided flexible board, or a multilayer Flexible board, rigid-flex board or flexible circuit board with mixed structure, etc.
  • the camera module 200 may also include connectors, peripheral electronic components and other components (not shown in the figure), which will not be described in detail here.
  • the camera function of the terminal has become an important feature of smart terminals and the main index for evaluating terminal performance.
  • the requirements for the appearance of the camera module are getting higher and higher.
  • Fig. 3 exemplarily shows the appearance of the camera module as the rear camera of the mobile phone, taking the terminal as a mobile phone as an example.
  • a transparent camera protection lens is usually arranged on the side close to the object.
  • the side of the camera protection lens close to the camera module is coated with an ink coating.
  • the ink coating is used to block unnecessary Light, wherein an opening on the ink coating layer corresponding to the camera module is provided with an opening to form a light through hole, so that light outside the terminal can enter the camera module through the light through hole for imaging.
  • the lens group the dark gray circular area in the middle
  • the lens barrel of the camera can be seen
  • the upper surface light gray annular area
  • the upper surface of the camera lens barrel is referred to as the top surface of the camera lens barrel, that is, the first surface 111c in FIG. 2. This is because the light that hits the top surface of the camera lens barrel through the light hole is reflected and then exits the camera protection lens to enter the human eye. This part of the light can be called the reflected light from the top of the lens barrel.
  • the method of coating the top surface of the camera lens barrel can be adopted. Coating the top surface of the camera lens barrel can reduce the reflection of light, so as to achieve the ink on the top surface of the camera lens barrel and the camera protection lens.
  • the visual effect of the color of the coating is consistent, as shown in the camera module 22 in FIG. 3, the lens group (the dark gray circular area in the middle) and the black ring area can be seen from the outside of the terminal through the light-passing hole.
  • the black ring area Including the coated lens barrel surface and the ink coating on the camera protection lens.
  • the method of coating the top surface of the lens barrel of the camera is to use the physical vapor deposition (PVD) method on the top surface 221 of the lens barrel 222 of the camera, and use the charged cations to accelerate in the electric field. It has the characteristic of certain kinetic energy. It guides the ions to the target electrode (cathode) made of the substance to be sputtered. During the collision of the incident ions with the atoms on the target surface, the latter is sputtered out through the transfer of momentum. The sputtered atoms will be directed toward the substrate along a certain direction, and finally a multilayer silicon oxide (SiO2) and titanium oxide (TiO2) film is obtained on the top surface of the lens barrel 221.
  • PVD physical vapor deposition
  • the multilayer silicon oxide and titanium oxide film is black.
  • the reflection of light incident on the top surface 221 of the lens barrel can be reduced, so as to achieve a black effect.
  • the part is the coated area, which is the top surface 221 of the camera lens barrel.
  • the process of coating the top surface of the camera lens barrel is complicated, and the coating process is completed before the camera module is installed.
  • the coated film is easily damaged and contaminated during the subsequent processing of the camera module. Wait and cannot be reworked, resulting in low module yield and increased cost.
  • camera color integration can be understood as the color of the top surface of the camera lens barrel is black or the same or similar to the terminal housing pattern, and the visual effect of the integrated camera and surrounding components is achieved. In this way, from the outside of the terminal, the terminal user can only see the lens, but not the top of the camera lens barrel.
  • the lens barrel top surface is the same or similar to the terminal housing pattern, including the lens barrel top surface and the terminal housing are the same, consistent or similar in color and/or pattern, that is, the pattern includes color and/ Or pattern.
  • the color of the lens barrel ceiling and the color of the terminal housing may be the same or similar in hue, brightness and purity
  • the pattern of the lens barrel ceiling and the pattern of the terminal housing may be the same or similar in patterns or graphics.
  • Hue refers to the appearance of colors, which can be understood as various colors in general, such as red, orange, yellow, green, cyan, blue, and purple.
  • Lightness refers to the degree of lightness and darkness of the color, which depends on the intensity of the light source and the reflection coefficient of the surface of the object.
  • the difference in lightness includes two situations, one is the same hue with different brightness, such as light green, medium green, and dark green, and the other is different hues
  • Different lightness for example, yellow has the highest lightness in visible colors, and purple and blue-violet have the lowest lightness.
  • Purity which can also be called saturation, refers to the purity or vividness of the color. It represents the proportion of colored components in the color. The greater the proportion of color components, the higher the purity of the color and the proportion of color components. The smaller the color, the lower the purity of the color.
  • Various monochromatic lights in the visible spectrum are the purest colors, which are the ultimate purity. When a color is mixed with black, white or other colors, the purity will change. When the mixed color reaches a large proportion, the original color will lose its original brilliance to the eyes and become a blend. The color of it.
  • the embodiments of the present application provide a technical solution for camera color integration, which can solve the problem of light reflection on the top surface of the camera lens barrel, so that the user can not see the top surface of the camera lens barrel, and can improve the yield of the camera module and reduce the cost. A detailed description will be given below with reference to FIGS. 4 to 6.
  • a decorative film capable of absorbing light is attached to the top surface of the lens barrel of the camera to achieve the appearance effect of the integrated color of the camera.
  • the decorative film in the embodiment of the present application includes a decorative layer and a glue layer.
  • the decorative layer covers part or all of the top surface of the lens barrel and is used to absorb visible light incident on the top surface of the lens barrel, or used when the camera module is installed on the terminal At this time, the pattern of the decoration layer is the same or similar to that of the terminal shell; the glue layer is located between the decoration layer and the top surface of the lens barrel, and is used to attach the decoration layer to the top surface of the lens barrel.
  • Fig. 4 shows a cross-sectional view of a decorative film applied to a camera module in an embodiment of the present application.
  • the decorative film 30 mainly includes: a micro-nano structure layer 301, a substrate layer 302, an ink layer 303, and an adhesive layer 304.
  • the micro-nano structure layer 301 is located on the second surface of the substrate layer 302 close to the light incident side, and includes a plurality of protruding structures or a plurality of concave structures, which are used to absorb light and lock the light so that it is incident on the micro-nano structure layer As little as possible, the light from above is reflected outside the terminal.
  • the surface of the micro-nano structure includes a plurality of continuous and unspaced convex and/or concave structures, for example, the cross-section of the convex or concave structure may be equilateral triangle, semicircle, rectangle, trapezoid, ellipse, Regular shapes such as cones or irregular shapes, etc.
  • the micro-nano structure can disperse the incident light to various angles through reflection, refraction and scattering, thereby changing the surface's light absorption efficiency, so this structure can also be called a light trapping structure. Different micro-nano structures can change the light absorption and reflectivity of the surface of the material, thereby changing the color of the surface of the object.
  • the micro-nano structure layer 301 shown in FIG. 4 has a tooth-shaped structure.
  • incident light When incident light is incident on the right surface of the first tooth, it will be reflected to the left surface of the adjacent second tooth, and will return after reflection. To the right surface of the first tooth, the incident light will eventually oscillate between the opposing surfaces of adjacent teeth without being reflected. Therefore, the micro-nano structure layer 301 shown in Figure 4 will exhibit a black hiding effect. That is, there is no light reflected from the micro-nano structure layer 301, and the micro-nano structure layer 301 is black when viewed by human eyes.
  • the micro-nano structure layer 301 can trap light of different wavelengths, which means that the micro-nano structure layer 301 not only It can absorb light of all wavelengths to present a black visual effect, or absorb light in a certain wavelength range to present a single color or colorful visual effect.
  • the shape of the light trapping structure in the implementation of this application corresponds to the wavelength range of visible light that the micro-nano structure layer can absorb or reflect.
  • the micro-nano structure layer 301 achieves a black effect (that is, absorbing light of all wavelengths) as an example for description, but it should be understood that by changing the width, height, and height of the light trapping structure of the micro-nano structure layer 301 Factors such as spacing and shape can make the micro-nano structure layer 301 absorb or reflect light in a specific wavelength range, thereby presenting light of different colors in appearance, so that the appearance effect required by the design can be met. For example, if you want the decorative film to show the same blue effect as the terminal housing, you can design the micro-nano structure so that the micro-nano structure only reflects blue light and absorbs light of other wavelengths.
  • the micro-nano structure layer 301 can present a certain pattern (that is, patterns or graphics).
  • the pattern presented by the nanostructure layer 301 may be the same or similar to the pattern of the terminal shell.
  • the micro-nano structure layer 301 in the embodiment of the present application can be obtained by nano-imprinting, that is, the micro-nano structure on the template is transferred to the material to be processed with the assistance of photoresist, and the processing accuracy can reach 2 nm.
  • the micro-nano structure layer 301 can also be processed by photolithography technology, laser processing, plasma etching micro-nano additive manufacturing technology, deposition method and the like.
  • the substrate layer 302 is in a sheet shape and has opposite second and third surfaces.
  • the second surface faces the light incident side or the second surface is close to the light incident side, and the third surface is away from the light incident side.
  • the base layer 302 plays a supporting role.
  • the substrate layer 302 is used to support the micro-nano structure layer 301 and at the same time support the ink layer 303 and the glue coating 304.
  • the material of the substrate layer 302 can be a PET substrate.
  • PET polyethylene terephthalate
  • PET polyethylene terephthalate
  • polyester resin thermoplastic polyester
  • PET condensation polymer of terephthalic acid and ethylene glycol. It is a crystalline saturated polyester. It is a milky white or light yellow, highly crystalline polymer with a smooth and shiny surface.
  • PET has excellent physical and mechanical properties in a wide temperature range. The long-term use temperature can reach 120°C. It has excellent electrical insulation. Even at high temperature and high frequency, its electrical properties are still good, but the corona resistance is poor. Creep resistance, fatigue resistance, friction resistance and dimensional stability are all very good.
  • the PET substrate is used as the supporting film material of the micro-nano structure layer, which has low cost, is convenient and easy to process, and has a good film cutting effect.
  • the PET in the embodiments of the present application can also be made of film materials of other materials, which is not limited in the embodiments of the present application.
  • the ink layer 303 is coated on the third surface of the substrate layer 302 and is located between the substrate layer and the adhesive layer.
  • the ink layer 303 is used to absorb light.
  • the ink layer 303 of different colors can act on light of different wavelengths.
  • the black ink layer is taken as an example.
  • the ink layer 303 is required to reflect light of a certain color or light of a certain wavelength range, ink layers of different colors can be used.
  • the ink layer 303 can be a red ink layer, which can reflect red light incident on the ink layer and absorb light of other colors.
  • the technical solution of the embodiment of the present application uses the ink layer 303 and the micro-nano structure layer 301 to be superimposed to achieve the appearance effect required by the design.
  • the black ink layer used in the embodiments of the present application can absorb most of the light incident on the layer, and the remaining light that is not absorbed by the ink layer can be absorbed by the micro-nano structure 301 layer, and finally make The decorative film appears black in appearance.
  • the corresponding micro-nano structure can be designed to act on the wavelength corresponding to the color (for example, absorption or reflection), and at the same time, an ink layer that acts on the wavelength corresponding to the color is used to make The decorative film presents the appearance color required by the design.
  • the adhesive layer 304 is located between the ink layer and the top surface of the lens barrel (ie, the first surface 111c shown in FIG. 2), and is used to attach the decorative film 30 to the top surface of the camera lens barrel.
  • the adhesive layer 304 may adopt optical clear adhesive (OCA), also called optical adhesive.
  • OCA adhesive is a double-sided laminating tape without matrix materials. Its advantages are clarity, high light transmittance (total light transmittance>99%), high adhesion, high weather resistance, water resistance, high temperature resistance, and Ultraviolet rays, controlled thickness, provide uniform spacing, long-term use will not cause yellowing (yellowing) peeling and deterioration.
  • OCA adhesive optical clear adhesive
  • the adhesive coating 304 may also be an adhesive tape of other materials.
  • the above-mentioned micro-nano structure layer 301, base material layer 302, and ink layer 303 can be collectively referred to as a decoration layer.
  • the decoration layer can absorb visible light incident on the decoration layer to make the decoration layer appear black, or the decoration layer is used as a camera module installation When it is on the terminal, make the pattern of the decoration layer the same or similar to the appearance pattern of the terminal.
  • the patterns in the embodiments of the present application include colors and/or patterns.
  • the pattern of the decoration layer may be the same or similar to the appearance pattern of the terminal, and the color of the decoration layer may be the same or similar to the appearance color of the terminal.
  • the appearance color of the terminal may be the color of the terminal shell, which may be coated on the camera protection.
  • the color of the ink coating on the lens can also be the color of the film attached to the terminal housing, that is, the appearance color of the terminal can be any color on the terminal that can be recognized by human eyes.
  • the decoration layer can be blue that is the same as the appearance color or a color similar to blue; or the color of the ink coating applied to the camera protection lens is black, then the decoration layer Can show the same black.
  • the color of the decoration layer is the same or similar to the appearance color of the terminal can be understood as the same or similar in hue, brightness and purity of the color of the decoration layer and the appearance color of the terminal.
  • the color of the decoration layer is the same as the appearance color of the terminal. It can be understood that the color of the decoration layer and the appearance color of the terminal are the same in hue, brightness, and purity.
  • the color of the decoration layer is similar to the appearance color of the terminal. It can be understood that the color of the decoration layer and the appearance color of the terminal are similar in hue, brightness and purity.
  • the color of the decoration layer and the appearance color of the terminal can belong to the same hue (that is, the same phase).
  • the pattern of the decoration layer is the same or similar to the appearance pattern of the terminal.
  • the pattern of the decoration layer may be the same or similar to the pattern of the terminal appearance.
  • the appearance pattern of the terminal may be the pattern of the terminal shell, which may be coated on the camera protection.
  • the pattern of the ink coating on the lens may also be the pattern of the film attached to the terminal housing.
  • the pattern of the decorative layer and the appearance pattern of the terminal are the same or similar, which can be understood as the pattern of the decorative layer and the appearance pattern of the terminal are the same or similar in patterns or graphics.
  • the pattern or pattern of the decorative layer may be the same as or similar to the pattern or pattern of the shell of the terminal. It should be understood that the pattern or pattern of the decorative layer is the same as or similar to the pattern or pattern of the terminal shell, which means that the two patterns are the same or similar.
  • the color of the decoration layer and the color of the terminal housing belong to the same color system.
  • the color of the decoration layer may be black, that is, the decoration layer absorbs light incident on the decoration layer and reduces reflected light.
  • the decoration layer is not limited to include the micro-nano structure layer 301, the substrate layer 302, and the ink layer 303.
  • the decoration layer may also only include the ink layer 303, or only the micro-nano structure layer 301 and the substrate layer 302. , Or include other sub-layers that can absorb or reflect light.
  • the decorative film 30 may also include a protective layer, which is attached to the adhesive layer 304 to protect the adhesive layer 304 from contamination after the decorative film 30 leaves the factory, so as to maintain the adhesive performance of the adhesive layer 304. Remove the protective layer when the film is attached to the top surface of the lens barrel.
  • FIG. 5 shows a schematic diagram of the camera module with the decorative film 30 attached.
  • (a) shows part of the components of the camera module 23, in which the lens group 231 is arranged in the lens barrel 232, and the lens barrel ceiling 233 of the camera module 23 is attached with ⁇ Decorative film 30.
  • a camera protection lens 40 is provided above the camera module 23 (that is, on the side close to the subject), wherein the camera protection lens 40 can be fixed on the terminal and is immobile relative to the terminal.
  • the camera protective lens 40 is provided with a light-passing hole, and the center of the light-passing hole is located on the optical axis of the lens group 231 for light to enter the camera module through the light-passing hole.
  • an ink coating 401 is coated on the side of the camera protection lens 40 close to the camera module 23, and an opening 402 is provided on the ink coating 401 at a position corresponding to the camera module 23.
  • the ink coating The opening on the 401 is to allow light within a field of vision (FOV) 50 range (for example, the FOV is 70 degrees to 80 degrees) to enter the lens group 231, but to block light from other parts.
  • the openings 402 on the ink coating 401 are light-through holes.
  • the camera protection lens 40 in the embodiment of the present application is used to protect the camera module 23.
  • the camera protection lens 40 can prevent the lens group 231 from colliding with other objects to cause damage to the lens group 231 or the entire camera module 23, and can also prevent Dust, waterproof and other sealing functions.
  • the camera protective lens 40 may be a cover glass on the front of the terminal, which may cover both the display screen and the camera module 23.
  • the camera protective lens 40 may be a protective glass that is provided on the back of the terminal (for example, embedded) and is dedicated to cover the camera module 23.
  • the number of camera protection lenses 40 can correspond to the number of camera modules.
  • each camera module can be provided with one camera protection lens 40; the camera protection lenses 40 can also be used to protect multiple cameras.
  • the camera module for example, a plurality of adjacent camera modules can share a camera protection lens 40, in this case, the camera protection lens 40 should be provided with a plurality of light holes, the plurality of light holes and the plurality of The camera modules correspond one to one.
  • the material of the camera protection lens 40 may be glass, sapphire, transparent plastic or other materials, and the embodiment of the present application does not make any limitation.
  • the shape of the decorative film 30 is compatible with the shape of the lens barrel surface 233 of the camera module 23.
  • the shape of the decorative film 30 may be a circular decorative film.
  • FIG. 6 shows a schematic perspective view of the decorative film 30.
  • the decorative film 30 has a ring shape and is composed of a part enclosed by a concentric inner ring 310 and an outer ring 320.
  • FIG. 5(b) shows a schematic diagram after the decorative film is attached to the top surface 233 of the lens barrel. The size of the decorative film and the position where the decorative film is attached to the top surface of the lens barrel are described below in conjunction with FIGS. 5 and 6.
  • the lens barrel top surface 233 is a ring-shaped surface
  • the decorative film 30 is a ring-shaped decorative film
  • the decorative film 30 is attached to the lens tube top surface 233.
  • the center of the film and the center of the lens barrel ceiling 233 are both located on the optical axis of the lens group 231.
  • the diameter of the inner ring 310 of the decorative film 30 should be larger than the viewing angle FOV at the top surface 233 of the lens barrel.
  • the diameter of the inner ring 310 of the decorative film 30 should be greater than the distance between the two edges of the FOV at the top surface 233 of the lens barrel, as shown in the figure between the point A and the point B.
  • the diameter 310 of the inner ring of the film 30 may be greater than or equal to the inner diameter of the top surface 233 of the lens barrel.
  • the decorative film may be a circular decorative film, wherein the center of the circular decorative film and the circular surface The centers are all located on the optical axis of the lens group 231, and the inner diameter of the annular decorative film is greater than or equal to the inner diameter of the annular surface.
  • the camera module 23 can move along the optical axis of the lens group 231 relative to the camera protection lens 40. Specifically, the lens group 231 and the lens barrel 232 of the camera module 23 can move along the optical axis under the push of a voice coil motor.
  • the lens barrel 232 is farther away from the camera protection lens 40, when looking from the outside of the camera protection lens 40 to the camera module 23, you can see more of the lens barrel surface 233. Therefore, the outer surface of the decorative film 30
  • the ring diameter 320 (that is, the outer diameter of the ring-shaped decorative film) can be determined according to the range of the lens barrel ceiling 233 visible from the outside when the lens group 231 is farthest from the camera protection lens 40.
  • the diameter of the range of the lens barrel ceiling 233 that can be seen (for convenience of description, hereinafter referred to as the visible range
  • the diameter of the outer ring 320 of the decorative film 30 should be greater than or equal to the diameter of the visible range, so as to ensure that the lens group 231 is not See the mirror tube sky 233.
  • the decorative film 30 can be configured In order to cover at least part of the area of the top surface 233 of the lens barrel, the outer edge of the at least part of the area is outside the field of view.
  • the diameter of the outer ring 320 of the decorative film 30 should be greater than or equal to the outer diameter of the lens barrel surface 233, so as to ensure that the lens barrel surface 233 cannot be seen from the outside during the movement of the lens group 231 .
  • the decorative film 30 is configured to cover The entire area of the lens barrel ceiling 233.
  • the diameter of the viewing area is larger than the outer diameter of the top surface 233 of the lens barrel.
  • the diameter of the outer ring 320 of the decorative film 30 should be greater than or equal to the diameter of the viewing area (or it needs to be larger than the outer diameter of the top surface 233 of the lens barrel.
  • the diameter of the lens barrel 232 is greater than or equal to the maximum diameter of the lens barrel 232 in the visible range), so as to ensure that the lens barrel surface 233 will not be seen from the outside during the movement of the lens 231.
  • the decorative film 30 is configured to cover The field of view.
  • the size of the light-passing hole 402 also affects the determination of the diameter of the outer ring 320 of the decorative film 30.
  • the larger the diameter of the light-passing hole 402 is, the larger the range of the lens barrel ceiling 233 that can be seen when viewed in the direction of the camera module 23 from the outside.
  • the larger the diameter of the light-passing hole 402 the larger the diameter of the outer ring 320 of the decorative film 30. Therefore, when determining the diameter of the outer ring 320 of the decorative film 30, the size of the light-passing hole 402 and the farthest distance of the lens group 231 from the camera protection lens 40 need to be considered at the same time.
  • the shape of the decorative film 30 can be determined according to the shape of the light-passing hole 402, the top surface of the lens barrel 233 and the lens group.
  • the embodiment of the present application does not limit the shape of the decorative film 30 to the ring shape.
  • the decorative film 30 can also have an inner circle and an outer shape, or a ring shape, of course, it can also be pentagonal, hexagonal, etc., as long as the lens group 231 is located at the furthest distance from the camera protection lens 40 When it is far away, looking from the direction of the camera module from the outside, the lens barrel surface 233 is not visible.
  • the thickness of the decorative film 30 is obtained by superposing the thickness of the micro-nano structure layer 301, the thickness of the substrate layer 302, the thickness of the ink layer 303, and the thickness of the glue coating 304.
  • the thickness of the decorative film 30 affects the maximum stroke of the voice coil motor during autofocus.
  • the distance between the lens barrel top 233 and the camera protection lens 40 is the sum of the maximum stroke of the motor and the safety stroke.
  • the decorative film 30 is attached to the lens barrel top 233, the decorative film 30
  • the distance between the upper surface (that is, the surface close to the camera protection lens 40, or the upper surface of the micro-nano structure layer) and the camera protection lens 40 is the sum of the maximum stroke of the motor and the safety stroke.
  • the determination of the distance between the upper surface of the decorative film 30 and the camera protection lens 40 varies according to the design of the maximum stroke of the voice coil motor.
  • the initial position of the voice coil motor further away from the camera protection lens 40 (for example, the distance between the initial position of the voice coil motor and the camera protection lens can be increased Not less than a distance of the thickness of the decorative film 30).
  • the thickness of the decorative film 30 may also be limited so that the thickness of the decorative film does not affect the voice coil.
  • the stroke of the motor will not protect the lens 40 from the camera head that touches the terminal. That is, the shortest distance between the camera module with the decorative film 30 and the camera protection lens is not less than the preset value. It should be understood that the shortest distance refers to the upper surface of the decorative film 30 and the lower surface of the camera protection lens. The shortest distance.
  • FIG. 7 shows a cross-sectional view of another decorative film 31 according to an embodiment of the present application.
  • the thickness of the decorative film 31 in the embodiment of the present application may be 0.1-0.2 mm (millimeters), wherein the thickness of the micro-nano structure layer 311 may be 300-700 nm (nanometers), and the thickness of the substrate layer 312 The range may be 50-200 ⁇ m (micrometers), the thickness of the ink layer 312 may be 5-15 ⁇ m, and the thickness of the gel coat 314 may be 20-50 ⁇ m.
  • the convex structure on the micro-nano structure layer 311 may be cone-shaped or elliptical (similar to a moth-eye structure).
  • the height range of the structure may be 100-500 nm, and the distance between two adjacent raised structures may be 300-700 nm.
  • a decorative film with a micro-nano structure is attached to the top surface of the lens barrel of the camera module, and the light absorption effect of the micro-nano structure and the ink layer can be used to reduce the light reflection on the top surface of the lens barrel, thereby achieving Design-required visual effects.
  • the top surface of the lens barrel of the camera appears black, basically without reflection, and invisible from the appearance , To achieve the visual effect of the integrated appearance of the camera color.
  • the micro-nano structure can act on light of different wavelengths. Therefore, the decorative film of the micro-nano structure can also be designed according to the needs of the terminal appearance pattern.
  • the camera lens barrel can show the required pattern, for example, the lens barrel with a decorative film reflects the same or similar color as the terminal housing or presents the same or similar color as the terminal housing The same or similar graphics or patterns, so as to achieve the visual effect of the integrated appearance of the camera color.
  • the embodiment of the application adopts the method of sticking the film on the top surface of the lens barrel of the camera module to realize the visual effect of the appearance of the integrated color of the camera.
  • the filming process can be carried out after the camera module is processed. Rework reduces production costs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Human Computer Interaction (AREA)
  • Camera Bodies And Camera Details Or Accessories (AREA)

Abstract

本申请提供了一种具有装饰膜的摄像头模组和终端，摄像头模组包括：透镜组；镜筒，包括本体和端部，所述端部位于所述本体的顶端，所述本体围设出收容空间，用于收容所述透镜组，所述端部具有第一表面，所述第一表面位于入光侧且与所述透镜组的光轴方向垂直，所述端部设有开口，用于光线从所述开口入射进所述透镜组；装饰膜，包括：装饰层，覆盖所述第一表面的部分或全部，用于吸收入射到所述第一表面的可见光；胶层，位于所述装饰层和所述第一表面之间，用于将所述装饰层贴合在所述第一表面上。上述技术方案能够提升摄像头模组的外观效果和摄像头模组的良率。

Description

具有装饰膜的摄像头模组和终端
本申请要求于2019年06月06日提交中国专利局、申请号为201910493668.7、申请名称为“具有装饰膜的摄像头模组和终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及摄像头领域，并且更具体地，涉及一种具有装饰膜的摄像头模组和终端。
背景技术
随着终端技术的发展，摄像功能已成为智能终端的重要特征和评价终端性能的主要指标。但为了更好地满足用户的审美需求，在提高终端摄像功能的同时，对于摄像头模组的外观要求也越来越高。
摄像头一般设置在镜筒中，在不做任何处理的情况下，从终端外部通过通光孔可以看见摄像头模组的镜筒天面。为了使得用户在外部只看见摄像头而看不见镜筒天面，现有技术中采用在镜筒天面镀膜的方法来减少光线的反射，可以实现黑色效果，从而达到摄像头颜色一体化的外观视觉效果。
但在摄像头镜筒天面镀膜的方法工艺复杂，在后续摄像头模组加工过程中容易损伤已经镀好的膜，最终造成模组良率低，成本上升。
发明内容
本申请提供一种具有装饰膜的摄像头模组和终端，能够达到摄像头模组呈现黑色或特定图案，提升摄像头模组的外观效果和摄像头模组良率。
第一方面，提供一种摄像头模组，包括：透镜组；镜筒，包括本体和端部，所述端部位于所述本体的顶端，所述本体围设出收容空间，用于收容所述透镜组，所述端部具有第一表面，所述第一表面位于入光侧且与所述透镜组的光轴方向垂直，所述端部设有开口，用于光线从所述开口入射进所述透镜组；装饰膜，包括：装饰层，覆盖所述第一表面的部分或全部，用于吸收入射到所述第一表面的可见光；胶层，位于所述装饰层和所述第一表面之间，用于将所述装饰层贴合在所述第一表面上。
本申请的技术方案中，在镜筒的第一表面上贴合装饰膜，该装饰膜的装饰层能够吸收入射到第一表面的可见光，使得装饰膜呈现出黑色，从而从外观上看摄像头模组的镜筒的第一表面呈现出黑色的视觉效果，提升了摄像头模组的外观，进一步地，装饰膜通过胶层贴合于镜筒的第一表面，可方便地将装饰膜与镜筒的第一表面进行贴合和从镜筒的第一表面上将装饰膜清除，相比现有技术中的镀膜方式，能够提升摄像头模组良率，降低成本。具体而言，当将摄像头模组安装于终端上时，若摄像头模组的周边存在呈现黑色的部件，贴合有装饰膜的镜筒的第一表面也呈现黑色，从而从外观上看，镜筒的第一表面和其周边 的呈现黑色的部件呈现颜色一体化的视觉效果，能够提升摄像头模组的外观效果。
应理解，入射到第一表面的光即为入射到装饰膜表面的光。
结合第一方面，在一种可能的实现方式中，所述装饰层包括：基材层，所述基材层呈片状，具有相背的第二表面和第三表面，所述第二表面朝向所述入光侧；微纳结构层，位于所述基材层的所述第二表面上，包括多个凸起结构或多个凹陷结构；油墨层，涂覆于所述基材层的所述第三表面上，位于所述基材层与所述胶层之间。
装饰膜包括微纳结构层和油墨层，通过微纳结构层和油墨层的配合，能够达到将入射到装饰膜上的可见光全部吸收，从而使装饰膜呈现出的黑色的纯度更高，也即装饰膜呈现出的颜色更黑。
结合第一方面，在一种可能的实现方式中，所述凸起结构或所述凹陷结构的剖面形状为以下形状中的任意一种：等边三角形、半圆形、矩形、梯形、椭圆形、锥形。
当微纳结构的凸起结构或述凹陷结构的剖面形状为等边三角形、半圆形、矩形、梯形、椭圆形、锥形时，可以锁住入射到微纳结构层上的光线，减少光线反射。
可选地，基材层的材质为聚对苯二甲酸乙二醇酯PET。
可选地，胶层的材质为光学透明胶OCA。
结合第一方面，在一种可能的实现方式中，所述第一表面为环形表面时，所述装饰膜为环形装饰膜，所述环形装饰膜的中心与所述环形表面的中心均位于所述光轴上，所述环形装饰膜的内径大于或等于所述环形表面的内径，所述环形装饰膜的外径大于或等于所述环形表面的外径。
第一表面的形状和装饰膜的形状相似，装饰膜的内径大于或等于第一表面的内径能够使的装饰膜不妨碍入射到摄像头模组内部的光线，装饰膜的外径大于或等于第一表面的外径，能够使装饰膜完全覆盖第一表面，从而使镜筒的第一表面全部呈现黑色，提升外观效果。
结合第一方面，在一种可能的实现方式中，所述环形装饰膜的内径大于所述第一表面位置的视场角FOV。
装饰膜的内径大于第一表面位置的视场角，使得装饰膜不影响入射到摄像头模组内部的光线，不会影响摄像头模组的性能。
结合第一方面，在一种可能的实现方式中，所述微纳结构层用于吸收入射到所述微纳结构层上的可见光，所述油墨层为黑色油墨层。
结合第一方面，在一种可能的实现方式中，所述装饰膜的厚度满足以下条件中的至少一个：所述微纳结构层的厚度范围为300纳米～700纳米；所述基材层的厚度范围为50微米～200微米；所述油墨层的厚度范围为5微米～15微米；所述胶层的厚度范围为20微米～50微米。
结合第一方面，在一种可能的实现方式中，所述装饰膜的厚度范围为0.1毫米～0.2毫米。
装饰膜的厚度范围可以根据实际需要进行选择，装饰膜的厚度较薄，从而不会在摄像头模组安装于终端上时对其他部件产生影响。
第二方面，提供一种摄像头模组，包括：透镜组；镜筒，包括本体和端部，所述端部位于所述本体的顶端，所述本体围设出收容空间，用于收容所述透镜组，所述端部具有第 一表面，所述第一表面位于入光侧且与所述透镜组的光轴方向垂直，所述端部设有开口，用于光线从所述开口入射进所述透镜组；装饰膜，包括：装饰层，覆盖所述第一表面的部分或全部，用于当所述摄像头模组安装于终端上时，所述装饰层的图案与终端外壳的图案相同或相近；胶层，位于所述装饰层和所述第一表面之间，用于将所述装饰层贴合在所述第一表面上。
本申请的技术方案中，在镜筒的第一表面上贴合装饰膜，当该装饰膜安装于终端上时，装饰膜的图案与终端外壳的图案相同或相近，使得从外观上看摄像头模组的镜筒的第一表面呈现出与终端外壳图案相同的视觉效果，提升了摄像头模组的外观，进一步地，装饰膜通过胶层贴合于镜筒的第一表面，可方便地将装饰膜与镜筒的第一表面进行贴合和从镜筒的第一表面上将装饰膜清除，相比现有技术中的镀膜方式，能够提升摄像头模组良率，降低成本。具体而言，当将摄像头模组安装于终端上时，装饰膜的图案与终端外壳的图案相同或相近，从而从外观上看，镜筒的第一表面和终端外壳呈现一体化的视觉效果，能够提升摄像头模组的外观效果。
结合第二方面，在一种可能的实现方式中，所述装饰层包括：基材层，所述基材层呈片状，具有相背的第二表面和第三表面，所述第二表面朝向所述入光侧；微纳结构层，位于所述基材层的所述第二表面上，包括多个凸起结构或多个凹陷结构；油墨层，涂覆于所述基材层的所述第三表面上，位于所述基材层与所述胶层之间。
装饰膜包括微纳结构层和油墨层，通过微纳结构层和油墨层的配合，能够使装饰膜呈现出的与终端外壳相同或相近的图案。
结合第二方面，在一种可能的实现方式中，所述凸起结构或所述凹陷结构的剖面形状为以下形状中的任意一种：等边三角形、半圆形、矩形、梯形、椭圆形、锥形。
可选地，基材层的材质为聚对苯二甲酸乙二醇酯PET。
可选地，胶层的材质为光学透明胶OCA。
结合第二方面，在一种可能的实现方式中，所述图案包括颜色和/或纹样时，所述装饰层的颜色与所述终端外壳的颜色在色相、明度和纯度上相同或相近，和/或，所述装饰层的纹样与所述终端外壳的纹样在花纹或图形上相同或相近。
结合第二方面，在一种可能的实现方式中，所述终端外壳为单色时，所述装饰层的颜色与所述终端外壳的颜色属于同一色系。
结合第二方面，在一种可能的实现方式中，所述第一表面为环形表面时，所述装饰膜为环形装饰膜，所述环形装饰膜的中心与所述环形表面的中心均位于所述光轴上，所述环形装饰膜的内径大于或等于所述环形表面的内径，所述环形装饰膜的外径大于或等于所述环形表面的外径。
第一表面的形状和装饰膜的形状相似，装饰膜的内径大于或等于第一表面的内径能够使的装饰膜不妨碍入射到摄像头模组内部的光线，装饰膜的外径大于或等于第一表面的外径，能够使装饰膜完全覆盖第一表面，从而使镜筒的第一表面呈现与终端外壳相同或相近的图案，提升外观效果。
结合第二方面，在一种可能的实现方式中，所述环形装饰膜的内径大于所述第一表面位置的视场角FOV。
装饰膜的内径大于第一表面位置的视场角，使得装饰膜不影响入射到摄像头模组内部 的光线，不会影响摄像头模组的性能。
结合第二方面，在一种可能的实现方式中，所述装饰膜的厚度满足以下条件中的至少一个：所述微纳结构层的厚度范围为300纳米～700纳米；所述基材层的厚度范围为50微米～200微米；所述油墨层的厚度范围为5微米～15微米；所述胶层的厚度范围为20微米～50微米。
结合第二方面，在一种可能的实现方式中，所述装饰膜的厚度范围为0.1毫米～0.2毫米。
装饰膜的厚度范围可以根据实际需要进行选择，装饰膜的厚度较薄，从而不会在摄像头模组安装于终端上时对其他部件产生影响。
第三方面，提供一种终端，包括：显示屏、电路板、壳体、摄像头保护镜片和第一方面或第一方面的任一种可能的实现方式所述的的摄像头模组，所述显示屏、所述电路板和所述摄像头模组设置于所述壳体中，所述显示屏和所述摄像头模组分别与所述电路板电性连接；所述摄像头保护镜片设置于所述壳体上，所述摄像头保护镜片上设置有通光孔，所述通光孔的中心位于所述透镜组的光轴上，用于光线通过所述通光孔进入所述摄像头模组中，所述摄像头模组相对于所述摄像头保护镜片可沿所述透镜组的光轴方向移动。
本申请的技术方案中，在镜筒的第一表面上贴合装饰膜，该装饰膜的装饰层能够吸收入射到第一表面的可见光，使得装饰膜呈现出黑色，使得从外观上看摄像头模组的镜筒的第一表面呈现出黑色的视觉效果，提升了摄像头模组的外观，进一步地，装饰膜通过胶层贴合于镜筒的第一表面，可方便地将装饰膜与镜筒的第一表面进行贴合和从镜筒的第一表面上将装饰膜清除，相比现有技术中的镀膜方式，能够提升摄像头模组良率，降低成本。具体而言，当将摄像头模组安装于终端上时，若摄像头模组的周边存在呈现黑色的部件，贴合有装饰膜的镜筒的第一表面也呈现黑色，从而从外观上看，镜筒的第一表面和其周边的呈现黑色的部件呈现颜色一体化的视觉效果，能够提升摄像头模组的外观效果。
结合第三方面，在一种可能的实现方式中，在所述摄像头模组与所述摄像头保护镜片的距离最远，人眼通过所述通光孔所能看见的视野范围不超过所述第一表面的外边缘的情况下，所述装饰膜配置为覆盖所述第一表面的至少部分面积，所述至少部分面积的外边缘在所述视野范围之外。
装饰膜覆盖第一表面的范围与摄像头模组同摄像头保护镜片的距离有关，当摄像头模组与摄像头保护镜片的距离最远时，装饰膜配置为覆盖第一表面的至少部分面积，且至少部分面积的外边缘在视野范围之外，保证了摄像头模组相对摄像头保护镜片沿光轴方向移动过程中，从终端外部朝向摄像头模组观看时，只能看见装饰膜呈现的黑色，看不见镜筒其他部分例如镜筒的第一表面上未被装饰膜覆盖的部分、镜筒的本体部分等。
结合第三方面，在一种可能的实现方式中，在所述摄像头模组与所述摄像头保护镜片的距离最远，人眼通过所述通光孔所能看见的视野范围超过所述第一表面的外边缘的情况下，所述装饰膜配置为覆盖所述第一表面的全部面积，或者，所述装饰膜配置为覆盖所述视野范围。
装饰膜覆盖第一表面的范围与摄像头模组同摄像头保护镜片的距离有关，当摄像头模组与摄像头保护镜片的距离最远时，装饰膜配置为覆盖第一表面的全部面积，或者覆盖视野范围，保证了摄像头模组相对摄像头保护镜片沿光轴方向移动过程中，从终端外部朝向 摄像头模组观看时，只能看见装饰膜呈现的黑色，看不见镜筒其他部分例如镜筒的本体部分等。
结合第三方面，在一种可能的实现方式中，所述摄像头模组与所述摄像头保护镜片的最短距离不小于预设值。
应理解，摄像头模组与所述摄像头保护镜片的最短距离为装饰膜的位于入光侧的表面与摄像头保护镜片背向入光侧的表面之间的距离。
可选地，该预设值为安全距离，预设值的设置可以使摄像头模组相对摄像头保护镜片沿光轴方向移动过程中，装饰膜不会与摄像头保护镜片碰触或挤压。
第四方面，提供一种终端，包括：显示屏、电路板、壳体、摄像头保护镜片和第二方面或第二方面的任一种可能的实现方式所述的摄像头模组，所述显示屏、所述电路板和所述摄像头模组设置于所述壳体中，所述显示屏和所述摄像头模组分别与所述电路板电性连接；所述摄像头保护镜片设置于所述壳体上，所述摄像头保护镜片上设置有通光孔，所述通光孔的中心位于所述透镜组的光轴上，用于光线通过所述通光孔进入所述摄像头模组中，所述摄像头模组相对于所述摄像头保护镜片可沿所述透镜组的光轴方向移动。
本申请的技术方案中，在镜筒的第一表面上贴合装饰膜，当该装饰膜安装于终端上时，装饰膜的图案与终端外壳的图案相同或相近，使得从外观上看摄像头模组的镜筒的第一表面呈现出与终端外壳图案相同的视觉效果，提升了摄像头模组的外观，进一步地，装饰膜通过胶层贴合于镜筒的第一表面，可方便地将装饰膜与镜筒的第一表面进行贴合和从镜筒的第一表面上将装饰膜清除，相比现有技术中的镀膜方式，能够提升摄像头模组良率，降低成本。具体而言，当将摄像头模组安装于终端上时，装饰膜的图案与终端外壳的图案相同或相近，从而从外观上看，镜筒的第一表面和终端外壳呈现一体化的视觉效果，能够提升摄像头模组的外观效果。
结合第四方面，在一种可能的实现方式中，在所述摄像头模组与所述摄像头保护镜片的距离最远，人眼通过所述通光孔所能看见的视野范围不超过所述第一表面的外边缘的情况下，所述装饰膜配置为覆盖所述第一表面的至少部分面积，所述至少部分面积的外边缘在所述视野范围之外。
装饰膜覆盖第一表面的范围与摄像头模组同摄像头保护镜片的距离有关，当摄像头模组与摄像头保护镜片的距离最远时，装饰膜配置为覆盖第一表面的至少部分面积，且至少部分面积的外边缘在视野范围之外，保证了摄像头模组相对摄像头保护镜片沿光轴方向移动过程中，从终端外部朝向摄像头模组观看时，只能看见装饰膜呈现的图案，看不见镜筒其他部分例如镜筒的第一表面上未被装饰膜覆盖的部分、镜筒的本体部分等。
结合第四方面，在一种可能的实现方式中，在所述摄像头模组与所述摄像头保护镜片的距离最远，人眼通过所述通光孔所能看见的视野范围超过所述第一表面的外边缘的情况下，所述装饰膜配置为覆盖所述第一表面的全部面积，或者，所述装饰膜配置为覆盖所述视野范围。
装饰膜覆盖第一表面的范围与摄像头模组同摄像头保护镜片的距离有关，当摄像头模组与摄像头保护镜片的距离最远时，装饰膜配置为覆盖第一表面的全部面积，或者覆盖视野范围，保证了摄像头模组相对摄像头保护镜片沿光轴方向移动过程中，从终端外部朝向摄像头模组观看时，只能看见装饰膜呈现的图案，看不见镜筒其他部分例如镜筒的本体部 分等。
结合第四方面，在一种可能的实现方式中，所述摄像头模组与所述摄像头保护镜片的最短距离不小于预设值。
附图说明
图1是本申请实施例的终端的示意图；
图2是本申请实施例的摄像头模组的示意性结构图；
图3是现有的一种摄像头模组的示意性结构图；
图4是本申请实施例的一种装饰膜的局部剖面示意图；
图5是本申请实施例的具有装饰膜的摄像头模组的示意性结构图；
图6是本申请实施例的装饰膜的示意图；
图7是本申请实施例的一种装饰膜的局部剖面示意图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
本申请实施例中所涉及的终端可以包括手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其它处理设备。还可以包括蜂窝电话(cellular phone)、智能手机(smart phone)、个人数字助理(personal digital assistant，PDA)电脑、平板型电脑、手持设备(handset)、膝上型电脑(laptop computer)、机器类型通信(machine type communication，MTC)终端、销售终端(point of sales，POS)、车载电脑以及其他具有成像功能的终端。本申请实施例中，终端还可以称为终端设备。
图1示出了一种终端的示意图。终端100可以包括显示屏101、壳体102、电路板(图中未示出)、用于前置拍摄的摄像头模组110和/或用于后置拍摄的摄像头模组120、以及用于保护摄像头模组的摄像头保护镜片104等。显示屏101、电路板和摄像头模组110和/或摄像头模组120设置于壳体102中，具体而言，壳体102可以包括中框和后盖(图中未示出)，中框和后盖组合形成壳体102，中框和后盖形成有容纳空间，用于容纳显示屏101、电路板、摄像头模组110和/或摄像头模组120以及其他器件等。显示屏101和摄像头模组110、120可以分别与电路板连接(包括电性连接和机械连接)。摄像头保护镜片104设置于壳体102上，覆盖摄像头模组110和摄像头模组120。在一些实施例中，摄像头保护镜片104用于保护前置摄像头模组110时，摄像头保护镜片140可以覆盖终端100的整个正面，可同时用于保护摄像头模组110和显示屏101；摄像头保护镜片104用于保护后置摄像头模组120时，摄像头保护镜片104可以只设置于摄像头模组120对应的位置上，用于保护摄像头模组120。摄像头保护镜片104的材质可以是玻璃、蓝宝石、陶瓷等，本申请实施例不做限定。在一些实施例中，摄像头保护镜片104为透明的，从而使得终端100外部的光线能够通过摄像头保护镜片104进入摄像头模组中。
如图1所示，终端100安装有摄像头模组110和/或摄像头模组120。
终端100可以为具有摄像或拍照功能的终端设备，例如手机、智能手机、平板电脑、手提电脑、摄像机、录像机、照相机、智能手表、智能手环或其他形态的具有拍照或摄像功能的设备。为方便理解，本申请实施例以终端100为手机为例进行描述。
终端100为手机时，其正面和背面均可以设置摄像头模组(camera compact module，CCM)，或者只在正面或背面设置摄像头模组。如图1所示，左图为手机的正面，其上部安装有摄像头模组110，可以用于自拍，也可以用于拍摄者拍摄其他对象。图1中的右图为手机的背面，其左上部安装有摄像头模组120，可用于拍摄周围景象，也可以用于自拍。
应理解，摄像头模组110和摄像头模组120的安装位置仅仅是示意性的，在一些其他的实施例中，摄像头模组110和120也可以安装于手机上的其他位置，例如摄像头模组110可以安装于听筒的左侧、手机的上部中间位置、手机的下部(或称下巴)或者手机的四个角落，摄像头模组120可以安装于手机背面的上部中间位置或右上角，摄像头模组110或120还可以不设置在手机主体上，而设置在相对手机可移动或转动的部件上，例如该部件可以从手机主体上外伸、收回或旋转等，当然摄像头模组110和120还可以设置于相对手机主体突出的边缘上，本申请对摄像头模组的安装位置不做任何限定。
还应理解，摄像头模组110和摄像头模组120的安装个数不限于一个，也可以是两个甚至更多，例如终端100可以在背面安装两个或三个摄像头模组120。本申请实施例对摄像头模组的安装个数不做任何限定，对于多个摄像头模组安装时的相对位置也不做任何限定。
摄像头模组110和120可以用于拍摄周围视频或照片，可以用于拍摄不同距离的景象，例如摄像头模组可以用于拍摄远处景象，可以用于拍摄近处景象，也可以用于拍摄微距景象。摄像头模组110和120也可以用于自拍，图中所示的位于手机背面的摄像头模组120还可以用于前置摄像头等，本申请实施例不做任何限定。
应理解，图1中示出的终端100并不限于包括以上器件，还可以包括其他器件，例如电池、闪光灯、指纹识别模组、听筒、按键、传感器等，本申请实施例仅以安装有摄像头模组的终端为例进行说明，但终端100上安装的元件并不限于此。
图2示出了一种摄像头模组的示意性剖视图。该摄像头模组200可以是图1中所示的摄像头模组110或摄像头模组120，下面结合图2对摄像头模组200的结构进行简要描述。
为方便描述，以下定义光轴方向上的被摄物体方向侧为上，与被摄物体相背的方向侧为下，本申请实施例中的方向的定义适用于后文将要描述的各幅附图。但应理解，本申请实施例中的“上”、“下”等方位描述仅仅是为了便于描述本申请的技术方案，而不用于指示所描述的装置或元件必须具有的方位，因此不能理解为对本申请技术方案的限定。
如图2所示，摄像头模组200可以包括镜头组件11、音圈马达(voice coil motor，VCM)12、镜座(lens holder)13、红外截止滤光片(infrared cut filter，也称IRCF)14、传感器(sensor)15、线路板16等。
镜头组件11用于收集光线，被摄物体反射的光线通过镜头组件11生成光学图像可以投射到传感器15表面上，传感器15将光学图像转化为电信号，通过处理电信号最终通过显示器或显示屏即可以看到图像。
镜头组件11可以包括镜筒111和透镜组112，透镜组112固定于镜筒111中，镜筒111通过螺纹连接等方式固定于音圈马达12上。镜头组件11可以是由不同的透镜(镜片)经系统组合而成的整体，也就是说透镜组112包括至少一个透镜，透镜组11包括的至少一个透镜可以是不同的，也可以是相同的。图2中示意性地示出了透镜组112包括3个透镜，应理解，透镜组112可以包括更多或更少个数的透镜，例如1个、2个、5个、8个、 10个甚至更多。透镜组112中的每个透镜可以为塑料(plastic)透镜，也可以为玻璃(glass)透镜，可以是球面的镜片或非球面的镜片。透镜组112用于形成固定焦距镜头，或变焦镜头，也可以用于形成标准镜头、短焦镜头或长焦镜头。
镜筒111大体呈圆筒状，包括本体111a和端部111b，端部111b位于本体111a在入光侧的顶端，在本申请实施例中，镜头组件11的上方为入光侧(即光线进入的位置)，镜头组件的下方为成像侧(即透镜组成像的位置)。本体111a围设出收容空间，该收容空间用于收容透镜组112，透镜组112包括至少一个透镜，该至少一个透镜沿着同一光轴在收容空间内按照需要排列。应理解，该同一光轴可以理解为是该透镜组112的光轴。端部111b包括设置于入光侧的第一表面111c，第一表面111c与透镜组112的光轴方向垂直。在一些实施例中，第一表面111c也可以称为镜筒的上表面或镜筒天面。端部111b设有开口111d，用于光线从开口111d入射到透镜组112中。一般情况下，当摄像头模组200安装于终端上时，人眼从终端外部可以看见第一表面111c(即镜筒天面)的部分或全部。需要说明的是，在一些实施例中，镜筒111还可以呈内部中空的梯形状(上窄下宽)，其结构与镜筒呈圆筒状类似，在此省略其详细说明。为方便描述和理解，本申请实施例中以镜筒天面来表示第一表面111c。
音圈马达12可以用于自动对焦(auto focus，AF)和光学防抖(optical image stabilization，OIS)。音圈马达12上固定有镜头组件11，在调焦过程中音圈马达12可以推动镜头组件11上下运动从而改变镜头组件11的焦距，以获得清晰的图像。应理解，图中仅示意性表示音圈马达12所在的位置，对音圈马达的具体结构不造成任何限定。
镜座13用于支撑整个摄像头模组200，当摄像头模组200安装于终端上时，镜座13相对终端是固定的，镜座13与音圈马达12连接，音圈马达12相对镜座13可以运动，以进行自动对焦和光学防抖，其中音圈马达12沿光轴方向的运动可用于自动对焦，音圈马达12沿垂直光轴方向的运动可用于光学防抖，在一些实施例中，音圈马达12沿光轴方向的运动可同时用于自动对焦和光学防抖。镜座13可以固定于线路板16上。
红外截止滤光片14设置于镜座13内，可以消除投射到传感器15上的不必要的光线，防止传感器15在成像时出现鬼影、杂光和偏色等问题，以提高其有效分辨率和彩色还原性。应理解，在一些摄像头模组中，此处设置的滤光片还可以是滤掉其他的光波段的滤光片，本申请实施例不限定于是红外截止滤光片。
传感器15是一种半导体芯片，表面包含有几十万到几百万的光电二极管，受到光照射时，会产生电荷，通过模数转换器芯片转换成数字信号。传感器15可以是电荷耦合元件(charge coupled device，CCD)，也可以是互补金属氧化物导体器件(complementary metal-oxide semiconductor，CMOS)。传感器15可以固定于线路板16上并与线路板16电性连接。
线路板16可以是柔性电路板(flexible printed circuit，FPC)或印刷电路板(printed circuit board，PCB)，用于传输电信号，其中，FPC可以是单面柔性板、双面柔性板、多层柔性板、刚柔性板或混合结构的柔性电路板等。
摄像头模组200还可以包括连接器、以及周边电子元件等元件(图中未示出)，在此不再一一详述。
随着终端技术的发展，终端的摄像功能已经成为智能终端的重要特征和评价终端性能 的主要指标。但为了更好地满足用户的审美需求，在提高终端摄像功能的同时，对于摄像头模组的外观要求也越来越高。
图3以终端为手机为例，示例性地示出了摄像头模组作为手机后置摄像头的外观示意图。
摄像头模组安装在终端上时，在靠近被摄物体一侧通常设置有透明的摄像头保护镜片，摄像头保护镜片靠近摄像头模组的一面涂覆有油墨涂层，油墨涂层用于挡住不必要的光线，其中油墨涂层上的与摄像头模组对应的位置上设有开孔以形成通光孔，使得终端外部的光线能够通过通光孔进入摄像头模组进而进行成像。如图3中的摄像头模组21所示，在未经任何处理的情况下，从终端外部通过通光孔不仅可以看见透镜组(中间深灰色的圆形区域)，还可以看见摄像头镜筒的上表面(浅灰色的环形区域)，为方便描述，本申请实施例中将摄像头镜筒的上表面称为摄像头镜筒天面，也就是图2中的第一表面111c。这是由于通过通光孔射到摄像头镜筒天面的光线经过反射又射出摄像头保护镜片而进入了人眼，这部分光可以称为镜筒天面反射光。正是由于镜筒天面反射光的存在，用户可以看见摄像头模组的除透镜组外的其他内部组件，使得摄像头模组的外观视觉效果达不到手机整体工业设计的效果，对于用户来说，视觉体验较差。
为了实现摄像头颜色一体化的外观视觉效果，可以采用在摄像头镜筒天面进行镀膜的方法，在摄像头镜筒天面镀膜可以减少光线的反射，从而达到摄像头镜筒天面与摄像头保护镜片上油墨涂层的颜色一致的视觉效果，如图3中的摄像头模组22所示，从终端外部通过通光孔可以看见透镜组(中间深灰色的圆形区域)和黑色环形区域，该黑色环形区域包括镀膜的镜筒天面和涂覆在摄像头保护镜片上的油墨涂层。
具体而言，在摄像头的镜筒天面镀膜的方式就是在摄像头镜筒222的镜筒天面221上采用物理气相沉积(physical vapor deposition，PVD)方法，利用带电荷的阳离子在电场中加速后具有一定动能的特点，将离子引向欲被溅射的物质制成的靶电极(阴极)，入射离子在与靶面原子的碰撞过程中，通过动量的转移，将后者溅射出来，这些被溅射出来的原子将沿着一定的方向射向衬底，最终在镜筒天面221上得到多层氧化硅(SiO2)和氧化钛(TiO2)薄膜。多层氧化硅和氧化钛的薄膜呈黑色，镀在摄像头镜筒天面221上时能够减少入射到镜筒天面221上的光线的反射，从而达到黑色的效果，图3中斜线填充的部分即镀膜的区域，也就是摄像头镜筒天面221。
但是如上所述，这种在摄像头镜筒天面镀膜的方式工艺复杂，并且镀膜工艺是在安装摄像头模组之前完成，已经镀好的薄膜在后续摄像头模组加工过程中很容易被损伤、污染等并且不可返工，最终导致模组良率低，成本上升。
因此，需要提供一种提升摄像头模组良率、降低成本的摄像头颜色一体化的技术方案。
应理解，本申请实施例中，摄像头颜色一体化可以理解为摄像头镜筒天面的颜色呈黑色或者与终端外壳图案相同或相近，而达到的摄像头与周围部件一体化的外观视觉效果。这样，从终端外部看，终端使用者只能看见镜头，而看不见摄像头镜筒天面。需要说明的是，本申请实施例中镜筒天面与终端外壳图案相同或相近，包括镜筒天面与终端外壳在颜色和/或纹样上相同、一致或相近，也即图案包括颜色和/或纹样。示例性的，镜筒天面的颜色与终端外壳的颜色可以在色相、明度和纯度上相同或相近，镜筒天面的纹样与终端外壳的纹样可以在花纹或图形上相同或相近。色相是指颜色的相貌，可以理解为通常所说的 各种颜色，例如红、橙、黄、绿、青、蓝、紫等。明度是指颜色的明暗程度，取决于光源的强度和物体表面的反射系数，明度的差别包括两种情况，一种是同一色相不同明度，例如浅绿、中绿、墨绿，二是不同色相的不同明度，例如在可视颜色中黄色的明度最高，紫色、蓝紫色的明度最低。纯度，也可以称为饱和度，是指颜色的纯净程度或鲜艳程度，表示颜色中所含有的有色成分的比例，含有颜色成分的比例愈大，则颜色的纯度愈高，含有颜色成分的比例愈小，则颜色的纯度愈低。可见光谱中各种单色光是最纯的颜色，为极限纯度。当一种颜色掺入黑、白或其他颜色时，纯度就产生变化，当掺入的色达到很大的比例时，在眼睛看来，原来的颜色将失去本来的光彩，而变成掺和的颜色了。
本申请实施例提供一种摄像头颜色一体化的技术方案，能够解决摄像头镜筒天面的光线反射问题，让使用者看不见摄像头镜筒天面，并且能够提升摄像头模组良率从而降低成本。下面结合图4至图6进行详细描述。
本申请实施例通过在摄像头的镜筒天面上贴合能够吸收光线的装饰膜，以达到摄像头颜色一体化的外观效果。本申请实施例中的装饰膜包括装饰层和胶层，装饰层覆盖镜筒天面的部分或全部，用于吸收入射到镜筒天面的可见光，或用于当摄像头模组安装于终端上时，装饰层的图案与终端外壳的图案相同或相近；胶层位于装饰层和镜筒天面之间，用于将装饰层贴合在镜筒天面上。
图4示出了本申请实施例中应用于摄像头模组的装饰膜的横截面图。如图所示，装饰膜30主要包括：微纳结构层301、基材层302、油墨层303和胶层304。
微纳结构层301位于基材层302的靠近入光侧的第二表面上，包括多个凸起结构或多个凹陷结构，用于吸收光线，并且锁住光线，使得入射到微纳结构层上的光线尽量少地反射出终端外面。
具体而言，微纳结构的表面包括多个连续无间隔的凸起和/或凹陷结构，例如该凸起或凹陷结构的剖面可以为等边三角形、半圆形、矩形、梯形、椭圆形、锥形等规则形状或者不规则形状等。微纳结构能够通过反射、折射和散射作用，将入射光分散到各个角度，从而改变表面对光的吸收效率，因此这种结构也可以称为陷光结构。不同的微纳结构可以改变材料表面对光的吸收率和反射率，进而可以改变物体表面的颜色。例如图4中所示的微纳结构层301具有齿形结构，当入射光入射到第一个齿的右表面后会反射到相邻第二个齿的左表面，再经过反射后又会回到第一个齿的右表面，最终入射光线将在相邻齿的相对面之间震荡而不会反射出去，因此，图4中所示的微纳结构层301将会呈现黑色隐藏的效果，也就是没有从微纳结构层301反射出去的光，人眼看微纳结构层301就是黑色的。当改变微纳结构层301上的凸起或凹陷结构的宽度、高度、间距、形状等，微纳结构层301可以对不同波长的光起到陷光作用，也就是说微纳结构层301不仅可以吸收所有波长的光线而呈现黑色的视觉效果，也可以吸收某个波长范围内的光而呈现单一颜色或彩色的视觉效果。换句话说，本申请实施中的陷光结构的形态与微纳结构层能够吸收或反射的可见光的波长范围相对应。本申请实施例中，仅以微纳结构层301实现黑色效果(即吸收所有波长的光)为例进行的说明，但应理解，通过改变微纳结构层301的陷光结构的宽度、高度、间距、形状等因素，可以使微纳结构层301对特定波长范围的光起到吸收或反射作用，从而从外观上呈现出不同颜色的光，因此可以满足设计要求的外观效果。例如，若要使装饰膜呈现与终端外壳相同的蓝色的效果，则可以通过设计微纳结构来使微纳结构只反射蓝色 的光而吸收其他波长的光。
可选地，在一些实施例中，通过改变微纳结构层301的陷光结构的宽度、高度、间距、形状等可以使微纳结构层301能够呈现一定的纹样(即花纹或图形)，微纳结构层301呈现的纹样与终端外壳的纹样可以相同或相近。
本申请实施例中的微纳结构层301可以通过纳米压印得到，即通过光刻胶辅助，将模板上的微纳结构转移到待加工材料上，其加工精度可达2nm。微纳结构层301还可以通过光刻技术、激光加工、等离子刻蚀微纳增材制造技术、沉积法等方式加工。
基材层302呈片状，具有相背的第二表面和第三表面，第二表面朝向入光侧或者说第二表面靠近入光侧，第三表面则远离入光侧。基材层302起支撑作用。
基材层302用于支撑微纳结构层301，同时支撑油墨层303和胶涂层304。
基材层302的材料可以采用PET基材，PET(polyethylene terephthalate)又称聚对苯二甲酸乙二醇酯，是热塑性聚酯中最主要的品种，俗称涤纶树脂。PET是对苯二甲酸与乙二醇的缩聚物，属结晶型饱和聚酯，为乳白色或浅黄色、高度结晶的聚合物，表面平滑有光泽。PET在较宽的温度范围内具有优良的物理机械性能，长期使用温度可达120℃，电绝缘性优良，甚至在高温高频下，其电性能仍较好，但耐电晕性较差，抗蠕变性，耐疲劳性，耐摩擦性、尺寸稳定性都很好。本申请实施例中以PET基材作为微纳结构层的支撑膜材，成本较低，方便易加工，并且膜切效果好。但应理解，本申请实施例中的PET也可以采用其他材质的膜材制成，本申请实施例不做限定。
油墨层303涂覆于基材层302的第三表面上，位于基材层和胶层之间。油墨层303用于吸收光线。
不同颜色的油墨层303可以对不同波长的光起作用，本申请实施例中以黑色油墨层为例，当光线穿过微纳结构层301和基材层302后，入射至黑色油墨层的光线能够被油墨层吸收。应理解，若要油墨层303反射某种颜色的光或反射某个波长范围的光，则可以使用不同颜色的油墨层。例如，若要使装饰膜呈现红色，油墨层303可以采用红色油墨层，红色油墨层可以反射入射到油墨层的红色的光而吸收其他颜色的光。
本申请实施例的技术方案采用油墨层303和微纳结构层301叠加使用来实现设计要求的外观效果。以装饰膜30呈现黑色为例，本申请实施例中的采用黑色油墨层能够吸收大部分入射到该层的光线，剩下未被油墨层吸收的光线可以被微纳结构301层吸收，最终使装饰膜从外观上呈现黑色。再如若使装饰膜30呈现其他颜色，则可以设计相应的微纳结构来对该颜色对应的波长起作用(例如吸收或反射)，同时使用对该颜色对应的波长起作用的油墨层，从而使装饰膜呈现出设计要求的外观颜色。
胶层304位于油墨层和镜筒天面(即图2所示的第一表面111c)之间，用于将装饰膜30贴合至摄像头镜筒天面上。
胶层304可以采用光学透明胶(optical clear adhesive，OCA)，也称光学胶。OCA胶是一种无基体材料的双面贴合胶带，其优点是清澈度、高透光性(全光穿透率>99％)、高黏着力、高耐候、耐水性、耐高温、抗紫外线，受控制的厚度，提供均匀的间距，长时间使用不会产生黄化(黄变)剥离及变质的问题。应理解，本申请实施例中，胶涂层304也可以采用其他材料的胶带。
上述微纳结构层301、基材层302、油墨层303可以统称为装饰层，该装饰层可以吸 收入射到装饰层的可见光从而使装饰层呈现黑色，或者该装饰层用于当摄像头模组安装于终端上时，使装饰层的图案与终端的外观图案相同或相近。本申请实施例中图案包括颜色和/或纹样。
示例性的，装饰层的图案与终端的外观图案相同或相近可以为装饰层的颜色与终端的外观颜色相同或相近，这里终端的外观颜色可以是终端外壳的颜色，可以是涂覆于摄像头保护镜片上的油墨涂层的颜色，还可以是贴于终端外壳上的膜的颜色等，也就是说，终端的外观颜色可以是终端上任意一种可被人眼识别的颜色。例如，终端外壳的颜色为蓝色，则装饰层可以呈现与外观颜色相同的蓝色或与蓝色相近的颜色；或者涂覆于摄像头保护镜片上的油墨涂层的颜色为黑色，则装饰层可以呈现出与之相同的黑色。
可选地，装饰层的颜色与终端的外观颜色相同或相近可以理解为装饰层的颜色与终端的外观颜色在色相、明度和纯度上相同或相近。装饰层的颜色与终端的外观颜色相同可以理解为装饰层的颜色与终端的外观颜色在色相、明度和纯度上都相同。装饰层的颜色与终端的外观颜色相近可以理解为装饰层的颜色与终端的外观颜色在色相、明度和纯度上相近，例如装饰层的颜色与终端的外观颜色可以是属于同一色相(即为同相色)，但在明度和纯度范围内变化的色彩，如深蓝和天蓝都属于蓝色系，只是明度和纯度不同。应理解，装饰层的颜色与终端的外观颜色相近还可以理解为人眼对该两种颜色无法辨别。
示例性的，装饰层的图案与终端的外观图案相同或相近可以为装饰层的纹样与终端外观的纹样相同或相近，这里终端的外观纹样可以是终端外壳的纹样，可以是涂覆于摄像头保护镜片上的油墨涂层的纹样，还可以是贴于终端外壳上的膜的纹样等。
可选地，装饰层的纹样与终端的外观纹样相同或相近可以理解为装饰层的纹样与终端的外观纹样在花纹或图形上相同或相近。例如，装饰层的花纹或图形可以与终端的外壳的花纹或图形相同或相近。应理解，装饰层的花纹或图形与终端的外壳的花纹或图形相同或相近可以理解为该两种花纹是相同的或类似的。
在一些实施例中，当终端外壳的颜色为单色时，装饰层的颜色与终端外壳的颜色属于同一色系。
在一些实施中，不论终端的外观的图案是如何，装饰层的颜色可以都呈现黑色，即装饰层吸收入射到装饰层上的光线，减少反射光线。
应理解，该装饰层不限定于包括微纳结构层301、基材层302、油墨层303，该装饰层也可以只包括油墨层303，或者只包括微纳结构层301和基材层302等，或者包括其他可以吸收光线或反射光线的子层。
可选地，装饰膜30还可以包括保护层，保护层与胶层304贴合，用于在装饰膜30出厂后保护胶层304不受污染，以保持胶层304的粘贴性能，在将装饰膜贴合在镜筒天面上时再移除保护层。
图5示出了贴合有装饰膜30的摄像头模组的示意图。如图5所示，(a)中示出了摄像头模组23的部分元件，其中透镜组231设置于镜筒232内，在摄像头模组23的镜筒天面233上贴合有图4所示的装饰膜30。另外在摄像头模组23上方(即靠近被摄物体一侧)，设置有摄像头保护镜片40，其中摄像头保护镜片40可以固定于终端上，其相对终端是不动的。摄像头保护镜片40上设置有通光孔，通光孔的中心位于透镜组231的光轴上，用于光线通过通光孔进入摄像头模组中。具体而言，在摄像头保护镜片40上靠近摄像头模 组23的一侧涂覆有油墨涂层401，在油墨涂层401上与摄像头模组23对应的位置上设有开孔402，油墨涂层401上开孔是为了让可视角(field of vision，FOV)50范围(例如FOV为70度～80度)内的光线能够进入透镜组231，但是遮挡住其他部分的光。油墨涂层401上的开孔402即为通光孔。
本申请实施例中的摄像头保护镜片40用于保护摄像头模组23，摄像头保护镜片40可以防止透镜组231与其他物体碰撞而对透镜组231或整个摄像头模组23造成损伤，还可以起到防尘、防水等密封作用。当摄像头模组23作为前置摄像头时，摄像头保护镜片40可以是终端的正面的盖板玻璃，可以既覆盖显示屏，也覆盖摄像头模组23。当摄像头模组23作为后置摄像头时，摄像头保护镜片40可以是设置于(例如内嵌)终端的背面并专用于覆盖摄像头模组23的保护玻璃。
应理解，摄像头保护镜片40设置的个数可以与摄像头模组的个数对应，例如每个摄像头模组都可以相应地设置一个摄像头保护镜片40；摄像头保护镜片40也可以是用于保护多个摄像头模组，例如相邻的多个摄像头模组可以共用一个摄像头保护镜片40，在这种情况下，摄像头保护镜片40上应设置多个通光孔，该多个通光孔与该多个摄像头模组一一对应。
还应理解，摄像头保护镜片40的材质可以是玻璃的，也可以是蓝宝石的，还可以是透明塑料或其他材质的，本申请实施例不做任何限定。
本申请实施例中，装饰膜30的形状与摄像头模组23的镜筒天面233的形状相适应，例如，若镜筒天面233为环形表面时，装饰膜30的形状可以为环形装饰膜。图6示出了装饰膜30的轴测示意图。装饰膜30呈环形，由同心的内圈310和外圈320围成的部分组成。图5的(b)中示出了装饰膜贴合在镜筒天面233上后的示意图。下面结合图5和图6描述装饰膜的尺寸和在镜筒天面上贴合装饰膜的位置。
如图5的(a)中所示，镜筒天面233为环形表面，装饰膜30为环形装饰膜，装饰膜30贴合于镜筒天面233上，其中在误差允许范围内，环形装饰膜的中心与镜筒天面233的中心均位于透镜组231的光轴上。为了不影响摄像头模组23的可视角FOV范围内的光线进入透镜组231，装饰膜30的内圈310的直径(即环形装饰膜的内径)应当大于镜筒天面233位置的可视角FOV，从图中的剖视图看即装饰膜30的内圈310的直径应当大于FOV两条边线在镜筒天面233处时之间的距离，如图中点A与点B间的距离。一般情况下，为了不对进入透镜组231的光线形成障碍，镜筒天面233与透镜组231之间会存在倾斜面，可视角FOV位于该倾斜面的倾角内，因此，本申请实施例中装饰膜30的内圈直径310可以大于或者等于镜筒天面233的内径，换句话说，镜筒天面为环形表面时，装饰膜可以为环形装饰膜，其中环形装饰膜的中心与环形表面的中心均位于透镜组231的光轴上，且环形装饰膜的内径大于或等于环形表面的内径。
摄像头模组23相对于摄像头保护镜片40可沿透镜组231的光轴方向移动，具体而言，摄像头模组23的透镜组231和镜筒232在音圈马达的推动作用下能够沿着光轴方向运动，当镜筒232距离摄像头保护镜片40越远时，从摄像头保护镜片40外侧向摄像头模组23方向看，将能看到更多的镜筒天面233，因此，装饰膜30的外圈直径320(即环形装饰膜的外径)可以根据透镜组231在距离摄像头保护镜片40最远处时从外侧可以看见的镜筒天面233的范围确定。
例如，当透镜组231位于距离摄像头保护镜片40最远处时，从外侧向摄像头模组23方向看，能够看到的镜筒天面233的范围的直径(为方便描述，以下简称可视范围直径或视野范围)小于镜筒天面233的外径时，装饰膜30的外圈320的直径应大于或等于可视范围直径，这样才能保证在透镜组231移动过程中，从外界都不会看见镜筒天面233。换句话说，在摄像头模组23与摄像头保护镜片40的距离最远，人眼通过通光孔所能看见的视野范围不超过镜筒天面233的外边缘的情况下，装饰膜30可以配置为覆盖镜筒天面233的至少部分面积，该至少部分面积的外边缘在视野范围之外。
又如，当透镜组231位于距离摄像头保护镜片40最远处时，从外侧向摄像头模组23方向看，能够看到全部的镜筒天面233，也即可视范围直径等于镜筒天面233的外径，则装饰膜30的外圈320的直径应大于或等于镜筒天面233的外径，这样才能保证在透镜组231移动过程中，从外界都不会看见镜筒天面233。换句话说，在摄像头模组23与摄像头保护镜片40的距离最远，人眼通过通光孔所能看见的视野范围超过镜筒天面233的外边缘的情况下，装饰膜30配置为覆盖镜筒天面233的全部面积。
再如，当透镜组头231位于距离摄像头保护镜片40最远处时，从外侧向摄像头模组23方向看，不仅能够看到全部的镜筒天面233，还能够看到镜筒232的侧面的部分面积，也即可视范围直径大于镜筒天面233的外径，则装饰膜30的外圈320的直径应大于或等于可视范围直径(或者说需要大于镜筒天面233的外径，且大于或等于镜筒232在可视范围内的最大直径)，这样才能保证在镜头231移动过程中，从外界都不会看见镜筒天面233。换句话说，在摄像头模组23与摄像头保护镜片40的距离最远，人眼通过通光孔所能看见的视野范围超过镜筒天面233的外边缘的情况下，装饰膜30配置为覆盖该视野范围。
通光孔402的大小也会影响装饰膜30的外圈320的直径的确定。在摄像头模组23位置固定的情况下，通光孔402的直径越大，从外侧向摄像头模组23方向看时，能够看见的镜筒天面233的范围越大。换句话说，通光孔402的直径越大，装饰膜30的外圈320的直径越大。因此，在确定装饰膜30的外圈320的直径时，需要同时考虑通光孔402的大小以及透镜组231距离摄像头保护镜片40的最远距离。
应理解，装饰膜30的形状可以根据通光孔402、镜筒天面233和透镜组的形状确定，本申请实施例不限定装饰膜30为环形形状，例如若镜筒天面233为内圆外方的形状，则装饰膜30也可以是内圆外方的形状，也可以是环形形状，当然也可以是五边形、六边形等，只要满足透镜组231位于距离摄像头保护镜片40最远的位置时，从外向摄像头模组方向看，看不见镜筒天面233即可。
装饰膜30的厚度由微纳结构层301的厚度、基材层302的厚度、油墨层303的厚度以及胶涂层304的厚度叠加得到。装饰膜30的厚度影响音圈马达在自动对焦时的最大行程。在未贴合装饰膜30前，镜筒天面233与摄像头保护镜片40之间的距离为马达最大行程与安全行程之和，在镜筒天面233上贴合装饰膜30后，装饰膜30的上表面(即靠近摄像头保护镜片40一侧的表面，或者说微纳结构层的上表面)与摄像头保护镜片40之间的距离为马达最大行程与安全行程之和。换句话说，装饰膜30的上表面与摄像头保护镜片40之间的距离的确定根据音圈马达最大行程的设计不同而不同。
因此，在不改变音圈马达最大行程设计的前提下，可以选择将音圈马达的初始位置设 置在距离摄像头保护镜片40更远的位置(例如音圈马达初始位置距离摄像头保护镜片的距离可以增加不小于装饰膜30的厚度的一段距离)，当然，为了减少装饰膜30的厚度对音圈马达行程的影响，也可以对装饰膜30的厚度进行限定，以使装饰膜的厚度不影响音圈马达的行程同时不会对碰到终端的摄像头保护镜片40。也就是说，贴合有装饰膜30的摄像头模组与摄像头保护镜片的最短距离不小于预设值，应理解，该最短距离指的是装饰膜30的上表面与摄像头保护镜片的下表面的最短距离。
图7示出了本申请实施例的另一个装饰膜31的截面图。
示例性的，本申请实施例中的装饰膜31的厚度范围可以是0.1-0.2mm(毫米)，其中微纳结构层311的厚度范围可以是300-700nm(纳米)，基材层312的厚度范围可以是50-200μm(微米)，油墨层312的厚度范围可以是5-15μm，胶涂层314的厚度范围可以是20-50μm。
示例性的，本申请实施例中，为实现微纳结构层311吸收所有波长的光线，微纳结构层311上的凸起结构可以是锥状或椭圆形状(类似蛾眼结构)，其中凸起结构的高度范围可以是100-500nm，相邻两个凸起结构的间距可以是300-700nm。
本申请实施例通过在摄像头模组的镜筒天面贴合具有微纳结构的装饰膜，利用微纳结构和油墨层对光线的吸收作用，能够减少镜筒天面的光线反射，从而能够实现设计要求的外观视觉效果，例如，从终端外侧向摄像头模组方向观察，由于微纳结构和黑色油墨对光线的吸收，摄像头的镜筒天面呈现出黑色，基本无反射，从外观上不可见，达到了摄像头颜色一体化的外观视觉效果。
同时，通过改变微纳结构上陷光结构的间距、高度、宽度、形状等因素可以使微纳结构对不同波长的光起作用，因此还可以根据终端外观图案的需求设计微纳结构的装饰膜，同时配合使用对相应波长起作用的油墨层，能够使摄像头镜筒天面呈现需要的图案，例如贴合有装饰膜的镜筒天面反射与终端外壳相同或相近的颜色或者呈现与终端外壳相同或相近的图形或花纹，从而达到摄像头颜色一体化的外观视觉效果。
本申请实施例采用在摄像头模组的镜筒天面贴膜的方式实现摄像头颜色一体化的外观视觉效果，可以在将摄像头模组加工完成后再进行贴膜工序，模组良率大大提升，并且可以返工，降低了生产成本。

Claims (21)

  1. 一种摄像头模组，其特征在于，包括：
    透镜组；
    镜筒，包括本体和端部，所述端部位于所述本体的顶端，所述本体围设出收容空间，用于收容所述透镜组，所述端部具有第一表面，所述第一表面位于入光侧且与所述透镜组的光轴方向垂直，所述端部设有开口，用于光线从所述开口入射进所述透镜组；
    装饰膜，包括：
    装饰层，覆盖所述第一表面的部分或全部，用于吸收入射到所述第一表面的可见光；
    胶层，位于所述装饰层和所述第一表面之间，用于将所述装饰层贴合在所述第一表面上。
  2. 根据权利要求1所述的摄像头模组，其特征在于，所述装饰层包括：
    基材层，所述基材层呈片状，具有相背的第二表面和第三表面，所述第二表面朝向所述入光侧；
    微纳结构层，位于所述基材层的所述第二表面上，包括多个凸起结构或多个凹陷结构；
    油墨层，涂覆于所述基材层的所述第三表面上，位于所述基材层与所述胶层之间。
  3. 根据权利要求2所述的摄像头模组，其特征在于，所述凸起结构或所述凹陷结构的剖面形状为以下形状中的任意一种：
    等边三角形、半圆形、矩形、梯形、椭圆形、锥形。
  4. 根据权利要求1至3中任一项所述的摄像头模组，所述第一表面为环形表面时，其特征在于，所述装饰膜为环形装饰膜，所述环形装饰膜的中心与所述环形表面的中心均位于所述光轴上，所述环形装饰膜的内径大于或等于所述环形表面的内径，所述环形装饰膜的外径大于或等于所述环形表面的外径。
  5. 根据权利要求4所述的摄像头模组，其特征在于，所述环形装饰膜的内径大于所述第一表面位置的视场角FOV。
  6. 根据权利要求2至5中任一项所述的摄像头模组，其特征在于，所述微纳结构层用于吸收入射到所述微纳结构层上的可见光，所述油墨层为黑色油墨层。
  7. 根据权利要求2至6中任一项所述的摄像头模组，其特征在于，所述装饰膜的厚度满足以下条件中的至少一个：
    所述微纳结构层的厚度范围为300纳米～700纳米；
    所述基材层的厚度范围为50微米～200微米；
    所述油墨层的厚度范围为5微米～15微米；
    所述胶层的厚度范围为20微米～50微米。
  8. 根据权利要求1至7中任一项所述的摄像头模组，其特征在于，所述装饰膜的厚度范围为0.1毫米～0.2毫米。
  9. 一种摄像头模组，其特征在于，包括：
    透镜组；
    镜筒，包括本体和端部，所述端部位于所述本体的顶端，所述本体围设出收容空间， 用于收容所述透镜组，所述端部具有第一表面，所述第一表面位于入光侧且与所述透镜组的光轴方向垂直，所述端部设有开口，用于光线从所述开口入射进所述透镜组；
    装饰膜，包括：
    装饰层，覆盖所述第一表面的部分或全部，用于当所述摄像头模组安装于终端上时，所述装饰层的图案与终端外壳的图案相同或相近；
    胶层，位于所述装饰层和所述第一表面之间，用于将所述装饰层贴合在所述第一表面上。
  10. 根据权利要求9所述的摄像头模组，其特征在于，所述装饰层包括：
    基材层，所述基材层呈片状，具有相背的第二表面和第三表面，所述第二表面朝向所述入光侧；
    微纳结构层，位于所述基材层的所述第二表面上，包括多个凸起结构或多个凹陷结构；
    油墨层，涂覆于所述基材层的所述第三表面上，位于所述基材层与所述胶层之间。
  11. 根据权利要求10所述的摄像头模组，其特征在于，所述凸起结构或所述凹陷结构的剖面形状为以下形状中的任意一种：
    等边三角形、半圆形、矩形、梯形、椭圆形、锥形。
  12. 根据权利要求9至11中任一项所述的摄像头模组，其特征在于，所述图案包括颜色和/或纹样时，所述装饰层的颜色与所述终端外壳的颜色在色相、明度和纯度上相同或相近，和/或，所述装饰层的纹样与所述终端外壳的纹样在花纹或图形上相同或相近。
  13. 根据权利要求12所述的摄像头模组，其特征在于，所述终端外壳为单色时，所述装饰层的颜色与所述终端外壳的颜色属于同一色系。
  14. 根据权利要求9至13中任一项所述的摄像头模组，所述第一表面为环形表面时，其特征在于，所述装饰膜为环形装饰膜，所述环形装饰膜的中心与所述环形表面的中心均位于所述光轴上，所述环形装饰膜的内径大于或等于所述环形表面的内径，所述环形装饰膜的外径大于或等于所述环形表面的外径。
  15. 根据权利要求14所述的摄像头模组，其特征在于，所述环形装饰膜的内径大于所述第一表面位置的视场角FOV。
  16. 根据权利要求10至15中任一项所述的摄像头模组，其特征在于，所述装饰膜的厚度满足以下条件中的至少一个：
    所述微纳结构层的厚度范围为300纳米～700纳米；
    所述基材层的厚度范围为50微米～200微米；
    所述油墨层的厚度范围为5微米～15微米；
    所述胶层的厚度范围为20微米～50微米。
  17. 根据权利要求9至16中任一项所述的摄像头模组，其特征在于，所述装饰膜的厚度范围为0.1毫米～0.2毫米。
  18. 一种终端，其特征在于，包括：显示屏、电路板、壳体、摄像头保护镜片和如权利要求1至17中任一项所述的摄像头模组，
    所述显示屏、所述电路板和所述摄像头模组设置于所述壳体中，所述显示屏和所述摄像头模组分别与所述电路板电性连接；
    所述摄像头保护镜片设置于所述壳体上，所述摄像头保护镜片上设置有通光孔，所述 通光孔的中心位于所述透镜组的光轴上，用于光线通过所述通光孔进入所述摄像头模组中，所述摄像头模组相对于所述摄像头保护镜片可沿所述透镜组的光轴方向移动。
  19. 根据权利要求18所述的终端，其特征在于，在所述摄像头模组与所述摄像头保护镜片的距离最远，人眼通过所述通光孔所能看见的视野范围不超过所述第一表面的外边缘的情况下，所述装饰膜配置为覆盖所述第一表面的至少部分面积，所述至少部分面积的外边缘在所述视野范围之外。
  20. 根据权利要求18所述的终端，其特征在于，在所述摄像头模组与所述摄像头保护镜片的距离最远，人眼通过所述通光孔所能看见的视野范围超过所述第一表面的外边缘的情况下，所述装饰膜配置为覆盖所述第一表面的全部面积，或者，所述装饰膜配置为覆盖所述视野范围。
  21. 根据权利要求18至20中任一项所述的终端，其特征在于，所述摄像头模组与所述摄像头保护镜片的最短距离不小于预设值。
PCT/CN2020/094755 2019-06-06 2020-06-05 具有装饰膜的摄像头模组和终端 WO2020244646A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910493668.7A CN112055132B (zh) 2019-06-06 2019-06-06 具有装饰膜的摄像头模组和终端
CN201910493668.7 2019-06-06

Publications (1)

Publication Number Publication Date
WO2020244646A1 true WO2020244646A1 (zh) 2020-12-10

Family

ID=73608632

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/094755 WO2020244646A1 (zh) 2019-06-06 2020-06-05 具有装饰膜的摄像头模组和终端

Country Status (2)

Country Link
CN (1) CN112055132B (zh)
WO (1) WO2020244646A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112714206A (zh) * 2020-12-14 2021-04-27 惠州Tcl移动通信有限公司 一种手机盖板与摄像头护镜的组装方法
CN114089447A (zh) * 2021-11-26 2022-02-25 信利光电股份有限公司 一种镜筒天面的保护方法
TWI832360B (zh) * 2022-04-12 2024-02-11 大立光電股份有限公司 金屬遮光元件、成像鏡頭模組及電子裝置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114726975A (zh) * 2021-01-06 2022-07-08 Oppo广东移动通信有限公司 摄像头镜片及其制备方法和电子设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202033511U (zh) * 2011-04-22 2011-11-09 易模塑科技（深圳）有限公司 一种摄像镜头
JP2016153202A (ja) * 2015-02-20 2016-08-25 大日本印刷株式会社 化粧材
CN107395794A (zh) * 2017-07-05 2017-11-24 广东欧珀移动通信有限公司 移动终端及其摄像头和加工方法
CN207799208U (zh) * 2018-01-23 2018-08-31 浙江水晶光电科技股份有限公司 一种可改善杂光的手机摄像用镜头模组结构
CN109365246A (zh) * 2018-12-22 2019-02-22 上海创功通讯技术有限公司 素材表面处理方法和外壳

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140009836A1 (en) * 2012-07-03 2014-01-09 3M Innovative Properties Company Wood-like films and other decorative films utilizing fresnel mirrors
US20160146992A1 (en) * 2014-03-31 2016-05-26 Google Technology Holdings LLC Method and apparatus for decorating a lens of an electronic device
CN206272711U (zh) * 2016-11-21 2017-06-20 广东欧珀移动通信有限公司 摄像头组件及终端设备
CN206796686U (zh) * 2017-03-11 2017-12-26 昇印光电（昆山）股份有限公司 装饰膜
CN107800931A (zh) * 2017-10-09 2018-03-13 广东欧珀移动通信有限公司 摄像头模组及移动终端
CN207410381U (zh) * 2017-11-07 2018-05-25 广东欧珀移动通信有限公司 移动终端

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202033511U (zh) * 2011-04-22 2011-11-09 易模塑科技（深圳）有限公司 一种摄像镜头
JP2016153202A (ja) * 2015-02-20 2016-08-25 大日本印刷株式会社 化粧材
CN107395794A (zh) * 2017-07-05 2017-11-24 广东欧珀移动通信有限公司 移动终端及其摄像头和加工方法
CN207799208U (zh) * 2018-01-23 2018-08-31 浙江水晶光电科技股份有限公司 一种可改善杂光的手机摄像用镜头模组结构
CN109365246A (zh) * 2018-12-22 2019-02-22 上海创功通讯技术有限公司 素材表面处理方法和外壳

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112714206A (zh) * 2020-12-14 2021-04-27 惠州Tcl移动通信有限公司 一种手机盖板与摄像头护镜的组装方法
CN112714206B (zh) * 2020-12-14 2023-08-15 惠州Tcl移动通信有限公司 一种手机盖板与摄像头护镜的组装方法
CN114089447A (zh) * 2021-11-26 2022-02-25 信利光电股份有限公司 一种镜筒天面的保护方法
TWI832360B (zh) * 2022-04-12 2024-02-11 大立光電股份有限公司 金屬遮光元件、成像鏡頭模組及電子裝置

Also Published As

Publication number Publication date
CN112055132A (zh) 2020-12-08
CN112055132B (zh) 2022-09-02

Similar Documents

Publication Publication Date Title
WO2020244646A1 (zh) 具有装饰膜的摄像头模组和终端
JP7007309B2 (ja) プレノプティックセンサ
TWI789043B (zh) 攝影機構造
TWI707188B (zh) 相機模組與電子裝置
TWI728690B (zh) 成像鏡頭、相機模組及電子裝置
TWI596417B (zh) 遮光片、成像鏡頭與電子裝置
KR102104081B1 (ko) 카메라 구조, 정보 통신 기기
WO2020216153A1 (zh) 自动聚焦驱动组件、镜头及电子设备
TWI751898B (zh) 光學成像鏡頭、取像裝置及電子裝置
CN110213473B (zh) 摄像头模组、电子装置及摄像头模组的制作方法
EP1701182A1 (en) Camera module comprising an infrared cut filter, said filter comprising ultraviolet cut means
CN1979321A (zh) 光圈及其制作方法
TW202348443A (zh) 光學機器用遮光薄膜及光學機器用層積遮光薄膜、以及使用其的光學機器用遮光環、光學機器用光圈構件、光學機器用快門構件、透鏡單元及攝影機模組
TWI625587B (zh) 遮光片、成像鏡頭與電子裝置
KR200395227Y1 (ko) 소형화된 카메라 모듈
CN217484589U (zh) 光学镜头及电子装置
CN116761068B (zh) 一种摄像模组和电子设备
CN209472639U (zh) 摄像装置
JP2017138402A (ja) レンズシート、撮像モジュール、撮像装置
CN203327127U (zh) 叠加式影像感测器组件及相机模组
KR20180048292A (ko) 카메라 모듈
CN116953825A (zh) 金属遮光元件、成像镜头模块及电子装置
WO2021056558A1 (en) Optical filter free lens system
TWI254148B (en) An IR-cut filter and manufacturing method of the IR-cut filter
TW202343040A (zh) 日夜兩用超高廣角紅外濾光鏡片

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: 20817868

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20817868

Country of ref document: EP

Kind code of ref document: A1