WO2023087920A1 - 遮光组件及其制备方法、光学镜头、摄像头、电子设备 - Google Patents

遮光组件及其制备方法、光学镜头、摄像头、电子设备 Download PDF

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Publication number
WO2023087920A1
WO2023087920A1 PCT/CN2022/121136 CN2022121136W WO2023087920A1 WO 2023087920 A1 WO2023087920 A1 WO 2023087920A1 CN 2022121136 W CN2022121136 W CN 2022121136W WO 2023087920 A1 WO2023087920 A1 WO 2023087920A1
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WO
WIPO (PCT)
Prior art keywords
light
shielding
shading
cylinder
secondary mirror
Prior art date
Application number
PCT/CN2022/121136
Other languages
English (en)
French (fr)
Inventor
李凯
黄庆叁
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Publication of WO2023087920A1 publication Critical patent/WO2023087920A1/zh

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B11/00—Filters or other obturators specially adapted for photographic purposes
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
    • 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

  • the present application relates to the field of imaging technology, in particular to a method for preparing a shading component, a shading component, an optical lens, a camera and electronic equipment.
  • the stray light can be eliminated and the imaging quality of the optical lens can be improved by installing a light shield in the optical lens.
  • the structure of the light shield in the related art is complicated, it is difficult to miniaturize, and it is difficult to be suitable for electronic devices with limited space such as mobile phones.
  • the present application provides a method for preparing a light-shielding component in which the light-shielding component can be miniaturized, a light-shielding component, an optical lens, a camera and electronic equipment.
  • the present application provides a method for preparing a shading assembly, the shading assembly is used for an optical lens, and the method includes:
  • the first raw material is in the shape of a long sheet;
  • the first base material includes a first main body part and a plurality of first main body parts on the first main body part; Bending arms, the first body part is in the shape of a long piece, and a plurality of the first bending arms are arranged at intervals on one long side of the first body part;
  • first light-shielding member processing the first base material to form a first light-shielding member, making the first main body part form a first light-shielding cylinder of the first light-shielding member, and making a plurality of the first bending arms form the first light-shielding member A plurality of first connecting rods of the component; wherein, the first light-shielding cylinder is ring-shaped, and the first light-shielding cylinder is used to eliminate stray light in the optical lens, and the first connecting rod is relative to the first light-shielding cylinder A shading tube is bent inward;
  • a fixing piece is provided, so that the fixing piece is connected to one end of the plurality of first connecting rods away from the first light-shielding tube;
  • the present application also provides a shading assembly, which is made by the method for preparing the shading assembly.
  • the present application also provides an optical lens, including:
  • the primary mirror has a primary mirror reflective surface facing the object side;
  • a secondary mirror, the secondary mirror and the primary mirror are arranged in sequence from the object side to the image side and arranged oppositely, the secondary mirror has a secondary mirror reflective surface facing the image side;
  • a shading assembly includes a fixing piece and a first shading piece, the fixing piece is arranged on the side of the secondary mirror reflective surface away from the primary mirror, and the first shading piece includes an integrally formed first shading piece a cylinder and a first connecting rod, the first light shielding cylinder surrounds the outer peripheral side of the secondary mirror and is spaced from the secondary mirror, and the end of the first connecting rod away from the first light shielding cylinder faces the secondary
  • the mirror extends and is fixedly connected to the fixing member, and a light-transmitting area is formed between the first light-shielding cylinder and the outer peripheral side of the secondary mirror, and the light-transmitting area is used to make the first incident light from the object side
  • the light is incident on the reflective surface of the primary mirror, and the first light-shielding tube is used to block the second incident light incident from the object side, and the incident angle of the second incident light is greater than the incident angle of the first incident light angle.
  • the present application also provides a camera, including an image sensor and the optical lens, the image sensor is disposed on the side of the primary mirror away from the secondary mirror and opposite to the secondary mirror, The image sensor is used for receiving light reflected by the secondary mirror and converting the received light into an electrical signal.
  • the present application further provides an electronic device, including a display screen and the camera, the display screen is electrically connected to the camera, and the display screen is used to display images captured by the camera.
  • the present application also provides another optical lens, including:
  • the primary mirror has a primary mirror reflective surface facing the object side;
  • a secondary mirror, the secondary mirror and the primary mirror are arranged in sequence from the object side to the image side and arranged oppositely, the secondary mirror has a secondary mirror reflective surface towards the image side;
  • a light-shielding component the light-shielding component includes a light-transmitting substrate and at least one light-shielding ring, the light-transmitting substrate is used to make the first incident light incident on the object side incident on the reflecting surface of the primary mirror, and the light-transmitting base
  • the material is provided with a first groove and at least one second groove, the secondary mirror is set in the first groove, and the light shielding ring is set in the second groove and surrounds the secondary mirror On the outer peripheral side, the shading ring is used to absorb the second incident light from the object side.
  • FIG. 1 is a schematic structural diagram of an electronic device provided in an embodiment of the present application.
  • Fig. 2 is an exploded schematic view of the electronic device shown in Fig. 1, the electronic device includes a camera and a display screen;
  • Fig. 3 is a schematic plan view of the camera in the electronic device shown in Fig. 2, the camera includes an optical lens and an image sensor;
  • Fig. 4 is a schematic cross-sectional view of the optical lens in the camera shown in Fig. 3;
  • Fig. 5 is a schematic cross-sectional view of the coaxial arrangement of the optical lens and the image sensor shown in Fig. 4;
  • Fig. 6 is a structural schematic diagram of a shading assembly in the optical lens shown in Fig. 5, the shading assembly includes a fixing member and a first shading member;
  • Fig. 7 is a structural schematic view that the light-shielding assembly in the optical lens shown in Fig. 6 also includes a second light-shielding member;
  • Fig. 8 is a schematic structural view of the shading assembly in the optical lens shown in Fig. 7, the shading assembly includes a fixing member, a first shading element and a second shading element;
  • Fig. 9 is a structural schematic diagram of the light-shielding assembly in the optical lens shown in Fig. 6 further including a plurality of second light-shielding members;
  • Fig. 10 is a schematic structural view of the shading assembly in the optical lens shown in Fig. 9, the shading assembly includes a fixing member, a first shading element and a plurality of second shading elements;
  • Fig. 11 is an exploded schematic view of the light-shielding assembly in the optical lens shown in Fig. 9;
  • Fig. 12 is a schematic flowchart of a method for preparing a shading assembly provided in an embodiment of the present application.
  • Fig. 13 is a schematic structural view of the method for preparing the shading assembly shown in Fig. 12;
  • Fig. 14 is a schematic flow diagram of the manufacturing method of the shading assembly shown in Fig. 12 further including steps S105, S106, S107 and S108;
  • Fig. 15 is a schematic structural view of the method for preparing the shading assembly shown in Fig. 14;
  • Fig. 16 is a schematic structural view of the shading assembly prepared by the method for preparing the shading assembly shown in Fig. 15;
  • FIG. 17 is a schematic structural diagram of another optical lens provided by an embodiment of the present application.
  • the present application provides a method for preparing a shading assembly, the shading assembly is used for an optical lens, and the method includes:
  • the first raw material is in the shape of a long sheet;
  • the first base material includes a first main body part and a plurality of first main body parts on the first main body part; Bending arms, the first body part is in the shape of a long piece, and a plurality of the first bending arms are arranged at intervals on one long side of the first body part;
  • first light-shielding member processing the first base material to form a first light-shielding member, making the first main body part form a first light-shielding cylinder of the first light-shielding member, and making a plurality of the first bending arms form the first light-shielding member A plurality of first connecting rods of the component; wherein, the first light-shielding cylinder is ring-shaped, and the first light-shielding cylinder is used to eliminate stray light in the optical lens, and the first connecting rod is relative to the first light-shielding cylinder A shading tube is bent inward;
  • a fixing piece is provided, so that the fixing piece is connected to one end of the plurality of first connecting rods away from the first light-shielding tube;
  • processing the first raw material to form the first substrate includes:
  • the first raw material is processed by at least one process method among cutting, punching and etching to form the first base material.
  • the processing of the first base material is to form a first light-shielding element
  • the first main body part is formed into a first light-shielding tube of the first light-shielding element
  • the plurality of first bending arms are formed into the first light-shielding cylinder.
  • a plurality of first connecting rods of the first shade including:
  • Fix the first base material with a ring fixture connect the two short sides of the first main body to form a first light-shielding cylinder, and bend a plurality of the first bending arms inwardly by 80°-100° ° forming a plurality of first connecting rods, wherein the first light-shielding cylinder and the plurality of first connecting rods form a first light-shielding member.
  • the connecting the fixing member to one end of the plurality of first connecting rods away from the first light-shielding tube includes:
  • the fixing member is bonded or welded to one end of the plurality of first connecting rods away from the first light-shielding tube.
  • the shading assembly also includes:
  • the second raw material is in the shape of a long sheet
  • the second substrate includes a second main body portion and a A plurality of second bending arms, the second main body is in the shape of a long piece, and the plurality of second bending arms are arranged at intervals on one long side of the second main body;
  • processing the second base material to form a second light-shielding member making the second body part form a second light-shielding tube of the second light-shielding member, and making a plurality of the second bending arms form the second light-shielding member
  • a plurality of second connecting rods of the component wherein, the second light-shielding cylinder is ring-shaped, and the second light-shielding cylinder is used to eliminate stray light in the optical lens, and the second connecting rod is relative to the first 2.
  • the shading tube is bent inward;
  • a plurality of the second connecting rods are all connected to the first connecting rod, so that the second light-shielding cylinder is opposite to the first light-shielding cylinder and arranged at intervals.
  • the number of the second shading members is multiple, and the diameters of the second shading tubes of the multiple second shading members are different; the plurality of the second connecting rods are all connected to the first On the connecting rod, the second light-shielding cylinder is opposite to the first light-shielding cylinder and arranged at intervals, including:
  • the diameters of the plurality of second light-shielding cylinders from large to small sequentially connect the plurality of second connecting rods corresponding to each of the second light-shielding cylinders along the direction that the first light-shielding cylinder points to the fixing member
  • a plurality of the second connecting rods corresponding to each of the second light-shielding cylinders are arranged sequentially in the direction from the first light-shielding cylinder to the fixing member according to the connection sequence, so that each One of the second light-shielding cylinders is opposite to the first light-shielding cylinder and arranged at intervals, and two adjacent second light-shielding cylinders are arranged at intervals.
  • the first raw material is a stainless steel sheet or an aluminum alloy sheet
  • the second raw material is a stainless steel sheet or an aluminum alloy sheet.
  • the present application also provides a shading component, which is made by the preparation method of the shading component.
  • the application also provides an optical lens, including:
  • the primary mirror has a primary mirror reflective surface facing the object side;
  • a secondary mirror, the secondary mirror and the primary mirror are arranged in sequence from the object side to the image side and arranged oppositely, the secondary mirror has a secondary mirror reflective surface facing the image side;
  • a shading assembly includes a fixing piece and a first shading piece, the fixing piece is arranged on the side of the secondary mirror reflective surface away from the primary mirror, and the first shading piece includes an integrally formed first shading piece a cylinder and a first connecting rod, the first light shielding cylinder surrounds the outer peripheral side of the secondary mirror and is spaced from the secondary mirror, and the end of the first connecting rod away from the first light shielding cylinder faces the secondary
  • the mirror extends and is fixedly connected to the fixing member, and a light-transmitting area is formed between the first light-shielding cylinder and the outer peripheral side of the secondary mirror, and the light-transmitting area is used to make the first incident light from the object side
  • the light is incident on the reflective surface of the primary mirror, and the first light-shielding tube is used to block the second incident light from the object side, and the incident angle of the second incident light is greater than or equal to the first incident light angle of incidence.
  • the shading assembly further includes at least one second shading member, the second shading member includes a second shading cylinder and a second connecting rod integrally formed, and the second shading cylinder is arranged on the outer peripheral side of the secondary mirror between the first light-shielding tube and at intervals from the secondary mirror and the first light-shielding tube, the second connecting rod is fixedly connected to the first connecting rod, and the second light-shielding tube is connected to the A first light-transmitting area is formed between the outer peripheral sides of the secondary mirror, a second light-transmitting area is formed between the second light-shielding cylinder and the first light-shielding cylinder, and the first light-transmitting area and the second light-transmitting area The area is used to make the first incident light from the object side strike the reflective surface of the primary mirror, and the second light-shielding cylinder is used to absorb the second incident light from the object side.
  • the second shading member includes a second shading cylinder and a second connecting rod integrally formed
  • the number of the second light-shielding member is plural, two adjacent second light-shielding cylinders are arranged at intervals and a third light-transmitting area is formed between the two adjacent second light-shielding cylinders, the The third light-transmitting area is used for making the first incident light incident on the object side incident on the reflecting surface of the primary mirror.
  • the distance between two adjacent second light-shielding cylinders increases sequentially along the direction in which the secondary mirror points to the first light-shielding cylinder.
  • the heights of the plurality of second light-shielding cylinders increase sequentially along the direction in which the secondary mirror points to the first light-shielding cylinder.
  • the present application also provides a camera, including an image sensor and the optical lens, the image sensor is arranged on the side of the primary mirror away from the secondary mirror and opposite to the secondary mirror, and the image sensor uses for receiving the light reflected by the secondary mirror and converting the received light into an electrical signal.
  • the present application also provides an electronic device, including a display screen and the camera, the display screen is electrically connected to the camera, and the display screen is used to display images captured by the camera.
  • the application also provides an optical lens, including:
  • the primary mirror has a primary mirror reflective surface facing the object side;
  • a secondary mirror, the secondary mirror and the primary mirror are arranged in sequence from the object side to the image side and arranged oppositely, the secondary mirror has a secondary mirror reflective surface facing the image side;
  • a light-shielding component the light-shielding component includes a light-transmitting substrate and at least one light-shielding ring, the light-transmitting substrate is used to make the first incident light incident on the object side incident on the reflecting surface of the primary mirror, and the light-transmitting base
  • the material is provided with a first groove and at least one second groove, the secondary mirror is set in the first groove, and the light shielding ring is set in the second groove and surrounds the secondary mirror On the outer peripheral side, the shading ring is used to absorb the second incident light from the object side.
  • the light-transmitting substrate includes a first surface and a second surface opposite to each other, the first surface faces the object side, the second surface faces the main mirror reflection surface, and the first surface and the second surface are both plane.
  • the number of the light-shielding rings is multiple, and the multiple light-shielding rings surround the outer peripheral side of the secondary mirror in turn.
  • the heights of the multiple shading rings are the same.
  • FIG. 1 is a schematic structural diagram of an electronic device 100 provided in an embodiment of the present application.
  • the electronic device 100 may be a mobile phone, a tablet computer, a notebook computer, a personal computer, a watch, a drone, a robot, a digital camera, and other devices with a shooting function.
  • a mobile phone is taken as an example.
  • an electronic device 100 includes a camera 1 and a display screen 2 .
  • the camera 1 is electrically connected to the display screen 2 .
  • the display screen 2 is used to display images captured by the camera 1 .
  • the display screen 2 is electrically connected to the camera 1 through one or more of a printed circuit board (Printed Circuit Board, PCB), a flexible circuit board (Flexible Printed Circuit, FPC) and the like.
  • the camera 1 can transmit the captured image to the display screen 2 through one or more of PCB, FPC and the like.
  • the electronic device 100 further includes a main board 3 and a battery 4 .
  • Both the display screen 2 and the camera 1 are electrically connected to the main board 3 .
  • the main board 3 can transmit the images captured by the camera 1 to the display screen 2 .
  • processors, memory, etc. can be set on the main board 3 to process and store the images captured by the camera 1 .
  • the battery 4 is used to supply power for the main board 3 , the display screen 2 and the camera 1 .
  • the electronic device 100 further includes a casing 5 .
  • the housing 5 includes a middle frame 51 and a back plate 52 .
  • the middle frame 51 and the back plate 52 can be integrally formed or connected as one.
  • the display screen 2 is connected to the side of the middle frame 51 away from the back plate 52 .
  • a receiving space is formed among the display screen 2 , the middle frame 51 and the back plate 52 .
  • the camera 1 is at least partially accommodated in the accommodation space.
  • the camera 1 provided in the embodiment of the present application may be a front camera module of a mobile phone or a rear camera module of a mobile phone. In the following embodiments, the rear camera module of a mobile phone is taken as an example.
  • the camera 1 can be partly accommodated in the accommodation space, and can also be entirely accommodated in the accommodation space.
  • one end of the camera 1 is accommodated in the accommodating space, and the other end of the camera 1 passes through the backboard 52 and protrudes out of the backboard 52 .
  • the camera 1 can directly obtain light from the outside of the electronic device 100 and perform imaging.
  • the back plate 52 needs to be transparent, and the camera 1 can obtain light through the back plate 52 .
  • the material of the backplane 52 can be plastic, glass and other light-transmitting materials.
  • FIG. 3 is a schematic structural diagram of a camera 1 provided in an embodiment of the present application.
  • the camera 1 includes an optical lens 10 and an image sensor 20 .
  • the camera 1 can be a retractable camera or a fixed camera.
  • the image sensor 20 of the retractable camera head 1 is fixed, and the optical lens 10 of the camera head 1 can be extended or retracted relative to the image sensor 20;
  • the lens 10 extends or retracts; or, the optical lens 10 of the camera 1 can extend or retract relative to the image sensor 20 , and the image sensor 20 of the camera 1 can extend or retract relative to the optical lens 10 .
  • the retractable camera 1 facilitates zooming.
  • the fixed camera 1 that is, the optical lens 10 and the image sensor 20 remain relatively stationary.
  • the image sensor 20 may be a solid-state image sensor 20 .
  • the image sensor 20 includes a photoelectric device such as a charge coupled device (Charge Coupled Device, CCD) and a metal oxide semiconductor device (Complementary Metal-Oxide Semiconductor, CMOS).
  • CCD Charge Coupled Device
  • CMOS Complementary Metal-Oxide Semiconductor
  • the image sensor 20 is used for receiving light incident from the optical lens 10 and forming an image.
  • the photoelectric device of the image sensor 20 has a photoelectric conversion function, which can convert the light on the photosensitive surface into an electrical signal proportional to the light.
  • FIG. 4 is a schematic cross-sectional view of an optical lens 10 provided in an embodiment of the present application.
  • the optical lens 10 includes a primary mirror 101 , a secondary mirror 102 and a shading assembly 103 .
  • the secondary mirror 102 and the primary mirror 101 are arranged in sequence from the object side to the image side and are opposite to each other.
  • the image sensor 20 is disposed on a side of the primary mirror 101 away from the secondary mirror 102 and opposite to the secondary mirror 102 .
  • the secondary mirror 102 , the primary mirror 101 and the image sensor 20 are arranged sequentially from the object side to the image side.
  • the secondary mirror 102 , the primary mirror 101 and the image sensor 20 are arranged coaxially.
  • the main mirror 101 is provided with a light-transmitting portion 110 .
  • the light-transmitting part 110 can be the light-transmitting area 104 on the main mirror 101 (for example, the light-transmitting area in the main mirror 101 made of plastic, glass, etc.), or can be a light-transmitting through hole.
  • the light transmitting part 110 , the secondary mirror 102 and the image sensor 20 are arranged coaxially.
  • the common axis of the transparent part 110 , the secondary mirror 102 and the image sensor 20 can refer to the M line in the figure.
  • the M line can also be understood as the optical axis of the optical lens 10 .
  • Optical lenses can be arranged between the light-transmitting part 110 and the secondary mirror 102, inside the light-transmitting part 110, and between the light-transmitting part 110 and the image sensor 20 to refract, scatter, and converge light to form a corresponding optical system.
  • the image sensor 20 is used for receiving light reflected by the secondary mirror 102 and converting the received light into an electrical signal. It can be understood that the light reflected by the secondary mirror 102 passes through the light-transmitting portion 110 and/or the optical lens and then shoots to the image sensor 20 .
  • the primary mirror 101 may be a metal reflector, a specular reflector (for example, a glass silver-coated reflector) and the like.
  • the main mirror 101 is an example of a silver-coated glass mirror.
  • the main mirror 101 has a main mirror reflection surface 112 facing the object side.
  • the reflective surface 112 of the primary mirror may be one of a flat surface, a convex surface, a concave surface, a convex arc surface, and a concave arc surface.
  • the primary mirror reflection surface 112 may be a spherical surface or an aspherical surface.
  • the object side can be understood as the side where the object to be photographed is located.
  • the secondary mirror 102 may be a metal reflector, a specular reflector (for example, a glass silver-coated reflector) and the like.
  • the secondary mirror 102 is an example of a silvered glass mirror.
  • the materials of the secondary mirror 102 and the primary mirror 101 may be different.
  • the secondary mirror 102 is spaced apart from the primary mirror 101 . The distance between the secondary mirror 102 and the primary mirror 101 can be set based on the focal length requirement of the optical lens 10 .
  • the secondary mirror 102 has a secondary mirror reflective surface 120 facing the image side.
  • the secondary mirror reflection surface 120 may be one of a plane, a convex plane, a concave plane, a convex arc surface, and a concave arc surface.
  • the secondary mirror reflection surface 120 may be a spherical surface or an aspherical surface. It can be understood that the secondary mirror reflection surface 120 is opposite to the primary mirror reflection surface 112 .
  • the image side can be understood as the side where the image sensor 20 is located.
  • FIG. 6 is a schematic structural diagram of a light shielding assembly 103 provided by an embodiment of the present application.
  • the light shielding component 103 is used for shielding light.
  • the light shielding component 103 includes a fixing part 130 and a first light shielding part 131 .
  • the fixing member 130 may be a fixing ring, a fixing piece and the like.
  • the fixed ring is taken as an example.
  • the fixing member 130 is made of non-transparent material, such as aluminum alloy, stainless steel, copper and so on.
  • the fixing member 130 is disposed on a side of the secondary mirror reflective surface 120 away from the primary mirror 101 .
  • the fixing member 130 is disposed between the secondary mirror reflection surface 120 and the object side.
  • the fixing member 130 surrounds the end of the secondary mirror 102 away from the primary mirror 101 for reducing the height of the optical lens 10 and improving the compactness of the optical lens 10 .
  • the fixing member 130 may be disposed on a side of the secondary mirror 102 away from the primary mirror 101 .
  • the first shading member 131 includes a first shading cylinder 131 a and a first connecting rod 131 b integrally formed.
  • the integral formation of the first light-shielding cylinder 131 a and the first connecting rod 131 b can reduce the process steps of forming the first light-shielding member 131 , and facilitate miniaturization and mass production of the first light-shielding member 131 .
  • the first light-shielding cylinder 131a is a hollow structure.
  • the first light-shielding cylinder 131a may be one of a cylindrical cylinder, a cubic cylinder, a square cylinder, and other polygonal cylinders, and the cylindrical cylinder is taken as an example in the embodiment of the present application.
  • the first light-shielding tube 131a is made of non-transparent material, such as aluminum alloy, stainless steel, copper and so on.
  • the first connecting rod 131b can be one of a cylindrical rod, a bar-shaped bar, etc., and a bar-shaped bar is taken as an example in the embodiment of the present application.
  • the material of the first connecting rod 131b is the same as that of the first light-shielding cylinder 131a, so as to facilitate integrally forming the first light-shielding member 131 and simplify the process steps of forming the first light-shielding member 131 .
  • the first light-shielding tube 131 a surrounds the outer peripheral side of the secondary mirror 102 and is spaced apart from the secondary mirror 102 . It can be understood that the inner peripheral side of the first light-shielding tube 131 a is opposite to the outer peripheral side of the secondary mirror 102 and arranged at intervals.
  • the inner peripheral side of the first light-shielding cylinder 131a can be understood as the inner peripheral side of the first light-shielding cylinder 131a.
  • the outer peripheral side of the secondary mirror 102 can be understood as the outer peripheral side of the secondary mirror 102 .
  • the outer peripheral side of the secondary mirror 102 is adjacent to the secondary mirror reflective surface 120 .
  • the distance between the first light-shielding cylinder 131a and the secondary mirror 102 can be designed according to the actual size of the optical lens 10 , the distance between the secondary mirror 102 and the primary mirror 101 , and the imaging quality requirements.
  • An end of the first connecting rod 131b away from the first light-shielding tube 131a extends toward the secondary mirror 102 and is fixedly connected to the fixing member 130 .
  • the connection manner between the first connecting rod 131b and the fixing member 130 includes but not limited to bonding, welding, bolt connection and the like.
  • the fixing part 130 can be fixedly connected to the side of the first connecting rod 131b facing the reflecting surface 112 of the primary mirror, or the fixing part 130 can be fixedly connected to the side of the first connecting rod 131b away from the reflecting surface 112 of the primary mirror, or the fixing part 130 is fixedly connected to the end surface of the end of the first connecting rod 131b away from the first light shielding cylinder 131a.
  • the fixing member 130 is fixedly connected to the side of the first connecting rod 131 b facing the reflecting surface 112 of the primary mirror.
  • a light-transmitting region 104 is formed between the first light-shielding cylinder 131 a and the outer peripheral side of the secondary mirror 102 .
  • the light-transmitting area 104 is used to make the first incident light A incident from the object side incident on the main mirror reflective surface 112 .
  • the first light-shielding tube 131 a is used to shield the second incident light B from the object side, so as to reduce or prevent the light incident from the object side from striking the main mirror reflective surface 112 .
  • the incident angle of the second incident ray B is greater than or equal to the incident angle of the first incident ray A.
  • the incident angle of the first incident ray A is relatively small, the first incident ray A is incident on the reflective surface 112 of the main mirror through the light-transmitting region 104, and the first incident ray A can pass through the reflective surface 112 of the main mirror and The secondary mirror reflective surface 120 is reflected to the image sensor 20 for imaging. Since the incident angle of the second incident ray B is relatively large, if the second incident ray B hits the primary mirror reflective surface 112, multiple reflections between the primary mirror reflective surface 112 and the secondary mirror reflective surface 120 are likely to occur to form stray rays.
  • the first incident ray A can be understood as an imaging ray that strikes the optical lens 10 from the object side
  • the second incident ray B can be understood as a stray ray that strikes the optical lens 10 from the object side.
  • the optical lens 10 provided in this embodiment can make the first incident light A shine on the main mirror reflection surface 112 for imaging, and the second incident light B is blocked by the first light-shielding cylinder 131a, thereby reducing the stray light in the optical system and achieving high quality imaging.
  • the shading assembly 103 of the optical lens 10 includes a fixing member 130 and a first shading member 131, and the first shading member 131 is integrally formed, which reduces the process steps.
  • the forming steps of the entire shading assembly 103 can be divided into processing the first shading member 131 and
  • the connection between the fixing member 130 and the first shading member 131 can be processed step by step, and each process step is easy to realize, so that it is convenient to prepare small-sized shading components 103 and batched shading components 103, and can be applied to miniaturization and batch production.
  • the optical lens 10 In the optical lens 10.
  • the fixing piece 130 since the fixing piece 130 is arranged on the side of the secondary mirror reflective surface 120 away from the primary mirror 101, the secondary mirror 102 and the first shading piece 131 can be connected through the fixing piece 130, so that the secondary mirror 102, After the first shading member 131 is connected as a whole, it is aligned with the primary mirror 101 to improve the position accuracy of the secondary mirror 102 , the shading assembly 103 and the primary mirror 101 , so as to improve the optical performance of the optical lens 10 .
  • the shading assembly 103 further includes at least one second shading member 132 .
  • the present application does not specifically limit the number of the second light shielding members 132 .
  • the number of the second light shielding member 132 can be one, two, three, four, five and so on.
  • the number of the second light shielding member 132 is one.
  • the second shading member 132 includes a second shading cylinder 132 a and a second connecting rod 132 b integrally formed.
  • the integral formation of the second light-shielding cylinder 132 a and the second connecting rod 132 b can reduce the process steps of forming the second light-shielding member 132 , and facilitate miniaturization and mass production of the second light-shielding member 132 .
  • the second light-shielding cylinder 132a is a hollow structure, and the second light-shielding cylinder 132a can be one of cylindrical cylinders, cubic cylinders, square cylinders, and other polygonal cylinders.
  • a cylindrical cylinder is taken as an example.
  • the second light-shielding tube 132a is made of non-transparent material, such as aluminum alloy, stainless steel, copper and so on.
  • the second connecting rod 132b may be one of a cylindrical rod, a bar-shaped bar, etc., and a bar-shaped bar is taken as an example in the embodiment of the present application.
  • the material of the second connecting rod 132 b is the same as that of the second light-shielding cylinder 132 a, so as to facilitate integrally forming the second light-shielding member 132 and simplify the process steps of forming the second light-shielding member 132 .
  • the second light-shielding cylinder 132a is disposed between the outer peripheral side of the secondary mirror 102 and the first light-shielding cylinder 131a, and is spaced apart from the secondary mirror 102 and the first light-shielding cylinder 131a.
  • the inner peripheral side of the second light-shielding cylinder 132a is opposite to the outer peripheral side of the secondary mirror 102 and spaced apart
  • the outer peripheral side of the second light-shielding cylinder 132a is opposite to and spaced apart from the inner peripheral side of the first light-shielding cylinder 131a.
  • the inner peripheral side of the second light-shielding cylinder 132a can be understood as the inner peripheral side of the second light-shielding cylinder 132a, and the outer peripheral side of the second light-shielding cylinder 132a can be understood as the outer peripheral side of the second light-shielding cylinder 132a. It can be understood that the inner diameter of the second light-shielding tube 132a is larger than the outer diameter of the secondary mirror, and smaller than the inner diameter of the first light-shielding tube 131a.
  • the second connecting rod 132b can be fixedly connected to the side of the first connecting rod 131b facing the reflecting surface 112 of the primary mirror, or the second connecting rod 132b is fixedly connected to the side of the first connecting rod 131b away from the reflecting surface 112 of the primary mirror, and Alternatively, the second connecting rod 132b is fixedly connected to the side of the fixing member 130 facing the reflecting surface 112 of the primary mirror. In this embodiment, the second connecting rod 132b is fixedly connected to the side of the first connecting rod 131b facing the main mirror reflecting surface 112 . Wherein, the size of the second connecting rod 132b may be smaller than that of the first connecting rod 131b, so as to facilitate the fixed connection between the second connecting rod 132b and the first connecting rod 131b.
  • connection methods of the second connecting rod 132b and the first connecting rod 131b include but not limited to bonding, welding, bolting and the like.
  • a first light-transmitting region 141 is formed between the second light-shielding cylinder 132 a and the outer peripheral side of the secondary mirror 102 .
  • a second light-transmitting region 142 is formed between the second light-shielding cylinder 132a and the first light-shielding cylinder 131a. Both the first light-transmitting area 141 and the second light-transmitting area 142 are used to make the first incident light A incident from the object side strike the main mirror reflective surface 112 .
  • the second light shielding cylinder 132a is used for shielding the second incident light B incident from the object side.
  • both the second shading member 132 and the first shading member 131 can block the second incident light B from the object side, and can block more stray light from being reflected by the primary mirror. surface 112, and under the same imaging quality requirements, the height of the second shading member 132 and the height of the first shading member 131 can be further reduced, thereby reducing the height dimension of the optical lens 10 and realizing the miniaturization of the optical lens 10.
  • the height of the second light shielding member 132 is the dimension of the second light shielding member 132 along the Z-axis direction.
  • the height of the first light shielding member 131 is the dimension of the first light shielding member 131 along the Z-axis direction.
  • the direction of the Z axis is the same as the direction of the optical axis of the optical lens 10 .
  • FIG. 9 to FIG. 11 there are multiple second light shielding members 132 .
  • four second light-shielding members 132 are taken as an example, and the four second light-shielding members 132 are respectively recorded as the first sub-shading member 1321, the second sub-shading member 1321, the third sub-shading member 1322 and the fourth sub-shading member 1321.
  • Shade 1323 the first sub-shading member 1321 includes a first sub-shading cylinder 132c and a first sub-connecting rod 132d integrally formed.
  • the second sub-shading member 1321 includes a second sub-shading cylinder 132e and a second sub-connecting rod 132f integrally formed.
  • the third sub-shading member 1322 includes a third sub-shading cylinder 132g and a third sub-shading rod 132h integrally formed.
  • the fourth sub-shading member 1323 includes a fourth sub-shading cylinder 132i and a fourth sub-connecting rod 132j integrally formed.
  • the first sub-shading cylinder 132c, the second sub-shading cylinder 132e, the third sub-shading cylinder 132g and the fourth sub-shading cylinder 132i are all hollow structures.
  • the first sub-shading cylinder 132c, the second sub-shading cylinder 132e, the third sub-shading cylinder 132g, and the fourth sub-shading cylinder 132i can be one of cylindrical cylinders, cubic cylinders, square cylinders, and other polygonal cylinders. In the embodiments, the cylindrical barrel is taken as an example.
  • the first sub-shading cylinder 132c, the second sub-shading cylinder 132e, the third sub-shading cylinder 132g, and the fourth sub-shading cylinder 132i are all made of non-transparent materials, such as aluminum alloy, stainless steel, copper, and the like.
  • the first sub-connecting rod 132d, the second sub-connecting rod 132f, the third sub-connecting rod 132h and the fourth sub-connecting rod 132j can be one of cylindrical rods, bar-shaped rods, etc. Take the rod as an example.
  • the material of the first sub-connecting rod 132d is the same as that of the first sub-shading tube 132c.
  • the material of the second sub-connecting rod 132f is the same as that of the second sub-shading cylinder 132e.
  • the material of the third sub-connecting rod 132h is the same as that of the third sub-shading tube 132g.
  • the material of the fourth sub-connecting rod 132j is the same as that of the fourth sub-shading cylinder 132i.
  • the first sub-shading cylinder 132c, the second sub-shading cylinder 132e, the third sub-shading cylinder 132g, and the fourth sub-shading cylinder 132i are arranged in sequence along the direction that the secondary mirror 102 points to the first light-shielding cylinder 131a.
  • the diameter of the first sub-shading cylinder 132c is smaller than the diameter of the second sub-shading cylinder 132e
  • the diameter of the second sub-shading cylinder 132e is smaller than the diameter of the third sub-shading cylinder 132g
  • the diameter of the third sub-shading cylinder 132g is smaller than the diameter of the fourth sub-shading cylinder 132g.
  • the first sub-connecting rod 132d, the second sub-connecting rod 132f, the third sub-connecting rod 132h, and the fourth sub-connecting rod 132j are arranged in sequence along the direction that the secondary mirror 102 points to the first light-shielding cylinder 131a, and the first connecting rod 131b faces the primary mirror.
  • the direction in which the secondary mirror 102 points to the first light-shielding cylinder 131a can refer to the Y-axis direction in the drawing.
  • Two adjacent second light-shielding cylinders 132a are arranged at intervals.
  • the first sub-shading cylinder 132c is spaced from the second sub-shading cylinder 132e
  • the second sub-shading cylinder 132e is spaced from the third sub-shading cylinder 132g
  • the third sub-shading cylinder 132g is connected to the fourth sub-shading cylinder 132i. interval setting.
  • a third light-transmitting region 143 is formed between two adjacent second light-shielding tubes 132a. It can be understood that the first light-transmitting region 141 is formed between the first sub-shading cylinder 132c and the secondary mirror 102 .
  • a second light-transmitting region 142 is formed between the fourth sub-shading cylinder 132i and the first light-shielding cylinder 131a.
  • the first light-shielding sub-region 143a is formed between the first light-shielding cylinder 132c and the second light-shielding cylinder 132e
  • the second light-transmitting region 143b is formed between the second light-shielding cylinder 132e and the third light-shielding cylinder 132g.
  • a third sub-light-transmitting region 143c is formed between the sub-shading cylinder 132g and the fourth sub-shading cylinder 132i, and the first sub-transmitting region 143a, the second sub-transmitting region 143b, and the third sub-transmitting region 143c are all third sub-transmitting regions 143c.
  • Light area 143 The third light-transmitting area 143 is used for making the first incident light A incident from the object side incident on the main mirror reflective surface 112 .
  • the first light-transmitting area 141 , the second light-transmitting area 142 and the third light-transmitting area 143 are all used to make the first incident light A incident from the object side hit the main mirror reflective surface 112 .
  • the first light-shielding cylinder 131a, the first sub-shading cylinder 132c, the second sub-shading cylinder 132e, the third sub-shading cylinder 132g, and the fourth sub-shading cylinder 132i are all used to shield the second incident light B incident from the object side.
  • the number of second shading elements 132 is relatively large, and both the second shading elements 132 and the first shading elements 131 can block the second incident light B from the object side, and can block more stray light from entering the main body.
  • mirror reflection surface 112 and under the same imaging quality requirements, the height of each second shading member 132 and the height of the first shading member 131 can be further reduced, thereby being more conducive to reducing the height dimension of the optical lens 10 and realizing the optical lens 10 miniaturization.
  • the distance between two adjacent second light-shielding cylinders 132a increases sequentially along the direction that the secondary mirror 102 points to the first light-shielding cylinder 131a, and the height of the second light-shielding cylinders 132a increases sequentially.
  • the distance between the first sub-shading cylinder 132c and the second sub-shading cylinder 132e is smaller than the distance between the second sub-shading cylinder 132e and the third sub-shading cylinder 132g.
  • the distance between the second sub-shading cylinder 132e and the third sub-shading cylinder 132g is smaller than the distance between the third sub-shading cylinder 132g and the fourth sub-shading cylinder 132i.
  • the height of the first sub-shading cylinder 132c is smaller than the height of the second sub-shading cylinder 132e.
  • the height of the second sub-shading cylinder 132e is smaller than the height of the third sub-shading cylinder 132g.
  • the height of the third sub-shading cylinder 132g is smaller than the height of the fourth sub-shading cylinder 132i.
  • the plurality of second light-shielding tubes 132a shield more light rays incident from the center of the object side, less shield light rays incident from the edge of the object side, and block the second incident light rays incident on the object side
  • B can improve the consistency of the incident light amount of the first incident light A at the center and the edge, thereby improving the uniformity of imaging.
  • the light-shielding component 103 is made by the preparation method of the light-shielding component 103 described in the following embodiments.
  • FIG. 12 is a schematic flowchart of a method for manufacturing a light-shielding component 103 provided in an embodiment of the present application.
  • the manufacturing method of the shading component 103 includes but not limited to the following steps S101 , S102 , S103 and S104 .
  • the shading assembly 103 provided in the following embodiments can be used to reduce the stray light of the optical lens 10 .
  • S101 Process the first raw material to form a first base material; wherein, the first raw material is in the shape of a long sheet; the first base material includes a first main body part and a plurality of For the first bending arm, the first main body is in the shape of a long piece, and a plurality of the first bending arms are arranged at intervals on one long side of the first main body.
  • the first raw material 105 is made of a non-transparent material.
  • the first raw material 105 may be a stainless steel sheet or an aluminum alloy sheet.
  • the width of the first body portion 160 of the first substrate 106 is smaller than the width of the first raw material 105
  • the length of the first body portion 160 is smaller than or equal to the length of the first raw material 105 .
  • the length dimension of the first main body portion 160 is equal to the length dimension of the first raw material 105 as an example.
  • processing the first raw material 105 to form the first base material 106 includes processing the first raw material 105 to form the first base material 106 by at least one of cutting, punching and etching. For example: process the first raw material 105 by one of cutting, punching and etching to form the first substrate 106; or process the first raw material by any two of cutting, punching and etching 105 to form the first base material 106; or, the first raw material 105 is processed by cutting, punching, and etching to form the first base material 106.
  • the cutting process is used to process the first raw material 105 to form the first base material 106, it may be a wire cutting process or a laser cutting process. It can be understood that processing the first raw material 105 to form the first base material 106 means removing part of the material of the first raw material 105 to form the first base material 106 having the first main body 160 and the first bending arm 161 .
  • S102 Process the first base material to form a first light-shielding member, make the first main body part form a first light-shielding tube of the first light-shielding member, and make a plurality of the first bending arms form the first light-shielding cylinder.
  • a plurality of first connecting rods of a light-shielding member wherein, the first light-shielding cylinder is ring-shaped, and the first light-shielding cylinder is used to eliminate stray light in the optical lens, and the first connecting rod is relative to the The first light-shielding tube is bent inward.
  • the first light-shielding tube 131a is in an annular shape.
  • the first light-shielding cylinder 131a is in the shape of a circular ring, a rectangular ring, a square ring or other polygonal rings.
  • a ring shape is taken as an example.
  • the first base material 106 is processed to form the first light-shielding member 131, the first body portion 160 is formed into the first light-shielding tube 131a of the first light-shielding member 131, and a plurality of the first light-shielding members 131 are formed.
  • a bending arm 161 forms a plurality of first connecting rods 131b of the first light-shielding member 131, including: fixing the first base material 106 with a ring fixture, and connecting the two short sides of the first main body 160 Connect to form a first light-shielding cylinder 131a, and bend a plurality of first bending arms 161 inwardly by 80°-100° to form a plurality of first connecting rods 131b, wherein the first light-shielding cylinder 131a is connected to a plurality of The first connecting rod 131b forms the first light shielding member 131 .
  • a cylindrical jig can be used to fix the first base material 106, that is, the first base material 106 can be surrounded on the outer peripheral side of the cylindrical jig, so that the first base material 106 and the peripheral side of the cylindrical jig fit.
  • a corresponding ring-shaped jig can be selected according to the required shape of the first light-shielding cylinder 131a, for example, a square jig, a rectangular jig, and the like.
  • the connection methods of the two short sides of the first main body portion 160 include but not limited to welding, bonding, and bolt connection.
  • the two short sides of the first main body portion 160 may be connected by welding or bonding. Bending the plurality of first bending arms 161 inwardly by 80° to 100° to form the plurality of first connecting rods 131b may be performed by bending the plurality of first bending arms 161 inwardly by 80°. ⁇ 100° forms a plurality of first connecting rods 131b.
  • the bending angle of the first bending arm 161 is 90°, so that multiple first bending arms 161 are bent and attached to the top or bottom surface of the cylindrical jig to form multiple first connecting rods 131b.
  • S103 Provide a fixing piece, so that the fixing piece is connected to one end of the plurality of first connecting rods away from the first light-shielding tube.
  • the fixing member 130 may be a fixing ring, a fixing piece and the like.
  • the fixing member 130 is a circular fixing ring.
  • connecting the fixing member 130 to one end of the plurality of first connecting rods 131b away from the first light-shielding cylinder 131a includes bonding or welding the fixing member 130 to a plurality of the first connecting rods 131b.
  • the end surface of one connecting rod 131b away from the end of the first light-shielding tube 131a, or, the fixing member 130 is bonded or welded to the bottom surface of a plurality of the first connecting rods 131b, or, the fixing member 130 is glued or welded to the top surfaces of the plurality of first connecting rods 131b.
  • the top surface of the first connecting rod 131b can be understood as the upward surface of the first connecting rod 131b in the accompanying drawing 13;
  • the bottom surface of the first connecting rod 131b can be understood as the downward facing surface of the first connecting rod 131b in the accompanying drawing 13 .
  • connection manner between the fixing member 130 and the first connecting rod 131b may be threaded connection, and the fixing member 130 may be connected to some of the first connecting rods 131b or all of the first connecting rods 131b among the plurality of first connecting rods 131b.
  • the connecting rod 131b is connected.
  • the shading assembly 103 includes a fixing member 130 and a first shading member 131 .
  • the preparation method of the shading assembly 103 provided in this application is to process the first raw material 105 to form the first base material 106, process the first base material 106 to form the first shading member 131, and connect the fixing member 130 to a plurality of first connecting rods 131b Three process steps form the shading component 103 , and each process step is simple, easy to implement and suitable for small-scale processing, so it can be used to prepare the small-sized shading component 103 .
  • the light-shielding component 103 provided in the present application is made by the above-mentioned manufacturing method, so the light-shielding component 103 can be miniaturized.
  • the optical lens 10 provided in the present application includes the light-shielding component 103 manufactured by the above-mentioned manufacturing method
  • the optical lens 10 can be miniaturized.
  • the camera 1 provided in the present application includes the above-mentioned optical lens 10
  • the camera 1 can be miniaturized and is suitable for electronic devices 100 such as mobile phones with limited space.
  • the electronic device 100 provided in the present application includes the above-mentioned camera 1
  • the camera 1 is small in size and occupies less space, and is easy to arrange in the electronic device 100 with limited space, and the electronic device 100 can be miniaturized.
  • FIG. 14 is a schematic flowchart of another method for preparing a shading assembly 103 provided in the embodiment of the present application.
  • the difference from the method for preparing the shading assembly 103 provided in the above embodiment is that after step S103, Before step S104, the following steps S105, S106, S107 and S108 are also included.
  • S105 Process at least one second raw material to form at least one second substrate; wherein, the second raw material is in the shape of a long sheet; the second substrate includes a second main body and a The second main body is in the shape of a long sheet, and the plurality of second bent arms are arranged at intervals on one long side of the second main body.
  • a second raw material 107 is processed to form a second substrate 108 ; wherein, the second raw material 107 is in the shape of a long sheet.
  • the second raw material 107 is made of a non-transparent material.
  • the second raw material 107 may be a stainless steel sheet or an aluminum alloy sheet.
  • the length of the second log 107 is smaller than the length of the first log 105 .
  • the width of the second log 107 may be smaller than, equal to, or larger than the width of the first log 105 .
  • the length of the second body part 180 is the same as the length of the second raw material 107 .
  • the width dimension of the second body part 180 is smaller than the width dimension of the second raw material 107 .
  • the length of the second body part 180 may be smaller than the length of the second raw material 107 .
  • a plurality of second bending arms 181 are uniformly arranged on the second main body portion 180 .
  • processing the second raw material 107 to form the second base material 108 includes processing the second raw material 107 to form the second base material 108 by at least one of cutting, punching and etching. For example: process the second raw material 107 by one of cutting, punching and etching to form the second substrate 108; or process the second raw material by any two of cutting, punching and etching 107 to form the second base material 108; or, the second raw material 107 is processed by cutting, punching and etching to form the second base material 108.
  • a cutting process is used to process the second raw material 107 to form the second base material 108, it may be a wire cutting process or a laser cutting process. It can be understood that processing the second raw material 107 to form the second base material 108 means removing part of the material of the second raw material 107 to form the second base material 108 having the second main body portion 180 and the second bent portion.
  • a plurality of second raw materials 107 are processed to form a plurality of second base materials 108; wherein, each second raw material 107 is in the shape of a long sheet.
  • Each second substrate 108 includes a second main body 180 and a plurality of second bending arms 181 on the second main body 180 .
  • the shapes, materials, structures and processing methods of the second raw material 107 and the second base material 108 can refer to the above embodiments.
  • the lengths of the plurality of second raw materials 107 are different, so as to process the second base materials 108 with different lengths.
  • S106 Process the second base material to form a second light-shielding member, make the second body part form a second light-shielding cylinder of the second light-shielding member, and make a plurality of the second bending arms form the first light-shielding member.
  • a plurality of second connecting rods of two light-shielding parts wherein, the second light-shielding cylinder is ring-shaped, and the second light-shielding cylinder is used to eliminate stray light in the optical lens, and the second connecting rod is relatively to the second connecting rod.
  • the second light-shielding tube is bent inward.
  • the second light-shielding tube 132a is annular.
  • the second light-shielding cylinder 132a is in the shape of a circular ring, a rectangular ring, or a square ring and one of other polygonal ring shapes. In the embodiment of the present application, a ring shape is taken as an example.
  • the second base material 108 is processed to form the second light-shielding member 132, the second body portion 180 is formed into the second light-shielding cylinder 132a of the second light-shielding member 132, and a plurality of the first light-shielding members 132 are formed.
  • Two bent arms 181 form a plurality of second connecting rods 132b of the second shading member 132, including fixing the second base material 108 with a ring fixture, and connecting the two short sides of the second main body 180 Form the second light-shielding cylinder 132a, and bend the plurality of second bending arms 181 inwardly by 80°-100° to form a plurality of second connecting rods 132b, wherein the second light-shielding cylinder 132a and the plurality of The second connecting rod 132b forms the second shade 132 .
  • a cylindrical jig can be used to fix the second base material 108, that is, the second base material 108 can be surrounded on the outer peripheral side of the cylindrical jig, so that the second base material 108 and the peripheral side of the cylindrical jig fit. Since the length of the second base material 108 is different from that of the first base material 108 , the diameters of the cylindrical jigs used are different.
  • a cylindrical jig of a corresponding size can be selected.
  • a corresponding annular jig can be selected according to the required shape of the second light-shielding cylinder 132a, for example, a square jig, a rectangular jig, and the like.
  • the connection methods of the two short sides of the second main body portion 180 include but not limited to welding, bonding, and bolt connection.
  • the two short sides of the second main body portion 180 may be connected by welding or bonding.
  • Bending the plurality of second bending arms 181 inwardly by 80°-100° to form the plurality of second connecting rods 132b may be performed by bending the plurality of second bending arms 181 inwardly by 80°. ⁇ 100° forms a plurality of first connecting rods 131b.
  • the bending angle of the second bending arm 181 is 90°, so that multiple second bending arms 181 are bent and attached to the top or bottom surface of the cylindrical jig to form multiple second connecting rods 132b.
  • the length of the second bending arm 181 is smaller than the length of the first bending arm 161 .
  • S107 Connect a plurality of the second connecting rods to the first connecting rod, so that the second light-shielding cylinder is opposite to the first light-shielding cylinder 131a and arranged at intervals.
  • connection manner between the second connecting rod 132b and the first connecting rod 131b includes but not limited to welding, bonding, threaded connection and the like.
  • the second connecting rod 132b is welded to the first connecting rod 131b. Connecting the second connecting rod 132b to the first connecting rod 131b by welding can improve the reliability of the shading assembly 103 and reduce or avoid loosening between the second connecting rod 132b and the first connecting rod 131b.
  • FIG. 15 and FIG. 16 there are multiple second shading members 132 , and the diameters of the second shading tubes 132 a of the plurality of second shading members 132 are different.
  • Connecting the plurality of second connecting rods 132b to the first connecting rod 131b so that the second light-shielding cylinder 132a is opposite to the first light-shielding cylinder 131a and arranged at intervals includes: according to the plurality of The diameters of the second light-shielding tubes 132a are arranged in descending order along the direction in which the first light-shielding tubes point to the fixing member, and the plurality of second connecting rods 132b corresponding to each of the second light-shielding tubes 132a are connected to the On the first connecting rod 131b, a plurality of the second connecting rods 132b corresponding to each of the second light-shielding cylinders 132a are connected in sequence from the first light-shielding cylinder 131a to the
  • each of the second light-shielding cylinders 132a is opposite to the first light-shielding cylinder 131a and arranged at intervals, and two adjacent second light-shielding cylinders 132a are arranged at intervals.
  • the plurality of second shading members 132 are assembled from outside to inside, and the assembling sequence of the plurality of second shading members 132 is from large to small in diameter, that is, the second shading members 132 with larger diameters are assembled first.
  • the first connecting rod 131b and the fixing member 130 can support the second shading member 132, thereby improving the connection between the second connecting rod 132b and the first shading member.
  • the reliability of the connection between the rods 131b avoids false welding or weak bonding.
  • the second connecting rod 132b may be directly connected to the top surface or the bottom surface of the first connecting rod 131b, or may be connected to the fixing member 130 to connect to the first connecting rod 131b.
  • S108 Treat the outer surface of the first shading member and the outer surface of the second shading member to form a first light-absorbing layer on the outer surface of the first shading member, and make the outer surface of the second shading member A second light-absorbing layer is sprayed on the surface, and both the first light-absorbing layer and the second light-absorbing layer are used to absorb stray light in the optical lens.
  • the outer surface of the first light-shielding member 131 is painted and matte treated, so that the outer surface of the first light-shielding member 131 forms a black first light-absorbing layer, and the outer surface of the second light-shielding member 132 is painted and matte.
  • Light treatment to form a black second light-absorbing layer on the outer surface of the second light-shielding member 132 can absorb light and convert it into other forms of energy (for example: heat energy).
  • the first light-shielding member 131 and the second light-shielding member 132 can not only block stray light, but also absorb stray light, thereby reducing or preventing stray light from being reflected, refracted, and then emitted into the optical lens 10 .
  • the shading assembly 103 in this embodiment includes a fixing member 130 , a first shading member 131 and one or more second shading members 132 . Since one or more second shading members 132 are provided, the shading effect of the shading assembly 103 can be improved. Both the first light-shielding element 131 and the second light-shielding element 132 are assembled in a simple and miniaturizable processing method, so that the overall light-shielding assembly 103 can be processed step by step through several easy-to-achieve processing steps, which is suitable for miniaturization. 1.
  • the optical lens 30 includes a primary mirror 301 , a secondary mirror 302 and a light shielding component 303 .
  • the main mirror 301 is the same as the main mirror 101 of the above-mentioned optical lens 10
  • the secondary mirror 30 is the same as the secondary mirror 102 of the above-mentioned optical lens 10.
  • 301 are arranged in sequence from the object side to the image side and oppositely arranged, and the secondary mirror 302 has a secondary mirror reflective surface facing the image side.
  • the light shielding assembly 303 is different from the above light shielding assembly 103 of the optical lens 10 .
  • the light-shielding component 303 includes a light-transmitting substrate 330 and at least one light-shielding ring 331 .
  • the light-transmitting substrate may be a light-transmitting plastic plate, a glass plate, or the like.
  • the light-transmitting substrate 330 is used for making the first incident light incident from the object side incident on the main mirror reflective surface 112 .
  • the transparent substrate 330 is provided with a first groove 330a and at least one second groove 330b.
  • the secondary mirror 302 is disposed in the first groove 330a.
  • the light shielding ring 331 is disposed in the second groove 330 b and surrounds the outer peripheral side of the secondary mirror 302 .
  • the light shielding ring 331 is used to absorb the second incident light from the object side.
  • the second groove 330 b is formed by etching the transparent substrate 330 , and the second groove 330 b is filled with a black light absorbing agent or black dye to form a light shielding ring 331 .
  • the light-transmitting substrate 330 includes a first surface 3301 and a second surface 3302 opposite to each other, the first surface 3301 faces the object side, the second surface 3302 faces the primary mirror reflection surface 112, the first surface 3301 and the second surface Both surfaces 3302 are plane.
  • This embodiment can reduce the influence of the light-transmitting substrate 330 on the incident light.
  • the first surface 3301 and the second surface 3302 can also be designed as arc-shaped surfaces.
  • the multiple light-shielding rings 331 surround the outer peripheral side of the secondary mirror 302 in sequence, and the heights of the multiple light-shielding rings 331 are the same.
  • a shading ring 331 is formed directly on the light-transmitting substrate 330, and the second incident light from the object side is blocked by the shading ring 331, thereby reducing stray light in the optical system and realizing high-quality imaging , and the process of directly forming the light-shielding ring 331 on the light-transmitting substrate 330 is simple and easy to implement, which facilitates the preparation of small-sized optical lenses 30 and mass production of optical lenses 30 .

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Abstract

一种遮光组件(103)及其制备方法、光学镜头(10)、摄像头(1)、电子设备(100)。遮光组件(103)的制备方法包括加工第一原材(105)以形成第一基材(106)；其中，第一原材(105)呈长片状；第一基材(106)包括第一主体部(160)和位于第一主体部(160)上的多个第一弯折臂(161)，第一主体部(160)呈长片状，多个第一弯折臂(161)间隔排列于第一主体部(160)的一个长边上。加工第一基材(106)以形成第一遮光件(131)，使第一主体部(160)形成第一遮光件(131)的第一遮光筒(131a)，使多个第一弯折臂(161)形成第一遮光件(131)的多个第一连接杆(131b)；其中，第一遮光筒(131a)呈环状，第一连接杆(131b)相对于第一遮光筒(131a)向内弯折。提供固定件(130)，使固定件(130)连接于多个第一连接杆(131b)远离第一遮光筒(131a)的一端。遮光组件(103)及其制备方法、光学镜头(10)、摄像头(1)、电子设备(100)能够实现遮光组件的小型化、批量化。

Description

遮光组件及其制备方法、光学镜头、摄像头、电子设备
本申请要求于2021年11月16日提交至中国专利局，申请号为202111359239.4，申请名称为“遮光组件及其制备方法、光学镜头、摄像头、电子设备”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
本申请涉及成像技术领域，具体涉及一种遮光组件的制备方法、遮光组件、光学镜头、摄像头及电子设备。
背景技术
通过在光学镜头内设置遮光罩可消除杂光，提高光学镜头的成像质量，然而，相关技术中遮光罩的结构复杂，难以小型化，难以适用于手机等空间有限的电子设备。
发明内容
本申请提供了一种遮光组件可小型化的遮光组件的制备方法、遮光组件、光学镜头、摄像头及电子设备。
第一方面，本申请提供了一种遮光组件的制备方法，所述遮光组件用于光学镜头，所述方法包括：
加工第一原材以形成第一基材；其中，所述第一原材呈长片状；所述第一基材包括第一主体部和位于所述第一主体部上的多个第一弯折臂，所述第一主体部呈长片状，多个所述第一弯折臂间隔排列于所述第一主体部的一个长边上；
加工所述第一基材以形成第一遮光件，使所述第一主体部形成所述第一遮光件的第一遮光筒，使多个所述第一弯折臂形成所述第一遮光件的多个第一连接杆；其中，所述第一遮光筒呈环状，所述第一遮光筒用于消除所述光学镜头内的杂光，所述第一连接杆相对于所述第一遮光筒向内弯折；
提供固定件，使所述固定件连接于多个所述第一连接杆远离所述第一遮光筒的一端；
形成遮光组件。
第二方面，本申请还提供了一种遮光组件，由所述的遮光组件的制备方法制成。
第三方面，本申请还提供了一种光学镜头，包括：
主镜，所述主镜具有朝向物侧的主镜反射面；
次镜，所述次镜与所述主镜从所述物侧至像侧依次排列并相对设置，所述次镜具有朝向所述像侧的次镜反射面；及
遮光组件，所述遮光组件包括固定件及第一遮光件，所述固定件设于所述次镜反射面背离所述主镜的一侧，所述第一遮光件包括一体成型的第一遮光筒和第一连接杆，所述第一遮光筒环绕于所述次镜的外周侧并与所述次镜间隔设置，所述第一连接杆远离所述第一遮光筒的一端朝向所述次镜延伸并与所述固定件固定连接，所述第一遮光筒与所述次镜的外周侧之间形成透光区域，所述透光区域用于使所述物侧射入的第一入射光线射于所述主镜反射面，所述第一遮光筒用于遮挡从所述物侧射入的第二入射光线，所述第二入射光线的入射角度大于所述第一入射光线的入射角度。
第四方面，本申请还提供了一种摄像头，包括图像传感器及所述的光学镜头，所述图像传感器设于所述主镜背离所述次镜的一侧并与所述次镜相对设置，所述图像传感器用于接收所述次镜反射的光线并将接收到的光线转换为电信号。
第五方面，本申请还提供了一种电子设备，包括显示屏及所述的摄像头，所述显示屏与所述摄像头电连接，所述显示屏用于显示所述摄像头拍摄的图像。
第六方面，本申请还提供了另一种光学镜头，包括：
主镜，所述主镜具有朝向物侧的主镜反射面；
次镜，所述次镜与所述主镜从所述物侧至像侧依次排列并相对设置，所述次镜具有朝向 所述像侧的次镜反射面；及
遮光组件，所述遮光组件包括透光基材及至少一个遮光环，所述透光基材用于使物侧射入的第一入射光线射于所述主镜反射面，所述透光基材设有第一凹槽和至少一个第二凹槽，所述次镜设于所述第一凹槽内，所述遮光环设于所述第二凹槽内并环绕于所述次镜的外周侧，所述遮光环用于吸收从所述物侧射入的第二入射光线。
附图说明
图1是本申请实施例提供的一种电子设备的结构示意图；
图2是图1所示电子设备的分解示意图，电子设备包括摄像头和显示屏；
图3是图2所示电子设备中摄像头的平面示意图，摄像头包括光学镜头和图像传感器；
图4是图3所示摄像头中光学镜头的截面示意图；
图5是图4所示光学镜头与图像传感器同轴设置的截面示意图；
图6是图5所示光学镜头中遮光组件的结构示意图，遮光组件包括固定件和第一遮光件；
图7是图6所示光学镜头中遮光组件还包括一个第二遮光件的结构示意图；
图8是图7所示光学镜头中遮光组件的结构示意图，遮光组件包括固定件、第一遮光件和一个第二遮光件；
图9是图6所示光学镜头中遮光组件还包括多个第二遮光件的结构示意图；
图10是图9所示光学镜头中遮光组件的结构示意图，遮光组件包括固定件、第一遮光件和多个第二遮光件；
图11是图9所示光学镜头中遮光组件的分解示意图；
图12是本申请实施例提供的一种遮光组件的制备方法的流程示意图；
图13是图12所示遮光组件的制备方法的结构示意图；
图14是图12所示遮光组件的制备方法还包括步骤S105、S106、S107和S108的流程示意图；
图15是图14所示遮光组件的制备方法的结构示意图；
图16是图15所示遮光组件的制备方法所制备的遮光组件的结构示意图；
图17是本申请实施例提供的另一种光学镜头的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有付出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本申请中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本申请所描述的实施例可以与其它实施例相结合。
本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一个或多个零部件的组件或设备没有限定于已列出的一个或多个零部件，而是可选地还包括没有列出的但所示例的产品固有的或者基于所说明的功能其应具有的一个或多个零部件。
本申请提供一种遮光组件的制备方法，所述遮光组件用于光学镜头，所述方法包括：
加工第一原材以形成第一基材；其中，所述第一原材呈长片状；所述第一基材包括第一主体部和位于所述第一主体部上的多个第一弯折臂，所述第一主体部呈长片状，多个所述第一弯折臂间隔排列于所述第一主体部的一个长边上；
加工所述第一基材以形成第一遮光件，使所述第一主体部形成所述第一遮光件的第一遮光筒，使多个所述第一弯折臂形成所述第一遮光件的多个第一连接杆；其中，所述第一遮光筒呈环状，所述第一遮光筒用于消除所述光学镜头内的杂光，所述第一连接杆相对于所述第一遮光筒向内弯折；
提供固定件，使所述固定件连接于多个所述第一连接杆远离所述第一遮光筒的一端；
形成遮光组件。
其中，所述加工第一原材以形成第一基材，包括：
采用切割、冲切、蚀刻中的至少一种工艺方法加工第一原材以形成第一基材。
其中，所述加工所述第一基材以形成第一遮光件，使所述第一主体部形成所述第一遮光件的第一遮光筒，使多个所述第一弯折臂形成所述第一遮光件的多个第一连接杆，包括：
采用环形治具固定所述第一基材，将所述第一主体部的两个短边连接形成第一遮光筒，将多个所述第一弯折臂皆向内弯折80°～100°形成多个第一连接杆，其中，所述第一遮光筒与多个所述第一连接杆形成第一遮光件。
其中，所述使所述固定件连接于多个所述第一连接杆远离所述第一遮光筒的一端，包括：
使所述固定件粘接或者焊接于多个所述第一连接杆远离所述第一遮光筒的一端。
其中，在所述形成遮光组件之前，还包括：
加工至少一个第二原材以形成至少一个第二基材；其中，所述第二原材呈长片状；所述第二基材包括第二主体部和位于所述第二主体部上的多个第二弯折臂，所述第二主体部呈长片状，多个所述第二弯折臂间隔排列于所述第二主体部的一个长边上；
加工所述第二基材以形成第二遮光件，使所述第二主体部形成所述第二遮光件的第二遮光筒，使多个所述第二弯折臂形成所述第二遮光件的多个第二连接杆；其中，所述第二遮光筒呈环状，所述第二遮光筒用于消除所述光学镜头内的杂光，所述第二连接杆相对于所述第二遮光筒向内弯折；
将多个所述第二连接杆皆连接于所述第一连接杆上，使所述第二遮光筒与所述第一遮光筒相对并间隔设置。
其中，所述第二遮光件的数量为多个，且多个所述第二遮光件的第二遮光筒的直径不同；所述将多个所述第二连接杆皆连接于所述第一连接杆上，使所述第二遮光筒与所述第一遮光筒相对并间隔设置，包括：
依照多个所述第二遮光筒的直径由大到小依次沿所述第一遮光筒指向所述固定件的方向将每个所述第二遮光筒对应的多个所述第二连接杆连接于所述第一连接杆上，使每个所述第二遮光筒对应的多个所述第二连接杆依照连接顺序从所述第一遮光筒至所述固定件的方向依次排列，使每个所述第二遮光筒与所述第一遮光筒相对并间隔设置，且使相邻的两个所述第二遮光筒间隔设置。
其中，所述第一原材为不锈钢片或者铝合金片，所述第二原材为不锈钢片或者铝合金片。
其中，在所述将多个所述第二连接杆皆连接于所述第一连接杆上，使所述第二遮光筒与所述第一遮光筒相对并间隔设置之后，所述形成遮光组件之前，所述方法还包括：
对所述第一遮光件的外表面和所述第二遮光件的外表面进行处理，使所述第一遮光件的外表面形成第一吸光层，使所述第二遮光件的外表面喷形成第二吸光层，所述第一吸光层和所述第二吸光层皆用于吸收所述光学镜头内的杂光。
本申请还提供一种遮光组件，由所述的遮光组件的制备方法制成。
本申请还提供一种光学镜头，包括：
主镜，所述主镜具有朝向物侧的主镜反射面；
次镜，所述次镜与所述主镜从所述物侧至像侧依次排列并相对设置，所述次镜具有朝向所述像侧的次镜反射面；及
遮光组件，所述遮光组件包括固定件及第一遮光件，所述固定件设于所述次镜反射面背离所述主镜的一侧，所述第一遮光件包括一体成型的第一遮光筒和第一连接杆，所述第一遮光筒环绕于所述次镜的外周侧并与所述次镜间隔设置，所述第一连接杆远离所述第一遮光筒的一端朝向所述次镜延伸并与所述固定件固定连接，所述第一遮光筒与所述次镜的外周侧之间形成透光区域，所述透光区域用于使所述物侧射入的第一入射光线射于所述主镜反射面，所述第一遮光筒用于遮挡从所述物侧射入的第二入射光线，所述第二入射光线的入射角度大于或等于所述第一入射光线的入射角度。
其中，所述遮光组件还包括至少一个第二遮光件，所述第二遮光件包括一体成型的第二遮光筒和第二连接杆，所述第二遮光筒设于所述次镜的外周侧与所述第一遮光筒之间，并与 所述次镜、所述第一遮光筒间隔设置，所述第二连接杆固定连接所述第一连接杆，所述第二遮光筒与所述次镜的外周侧之间形成第一透光区域，所述第二遮光筒与所述第一遮光筒之间形成第二透光区域，所述第一透光区域和所述第二透光区域用于使所述物侧射入的第一入射光线射于所述主镜反射面，所述第二遮光筒用于吸收从所述物侧射入的第二入射光线。
其中，所述第二遮光件的数量为多个，相邻的两个所述第二遮光筒间隔设置且相邻的两个所述第二遮光筒之间形成第三透光区域，所述第三透光区域用于使所述物侧射入的第一入射光线射于所述主镜反射面。
其中，相邻的两个所述第二遮光筒之间的间距沿所述次镜指向所述第一遮光筒的方向依次递增。
其中，多个所述第二遮光筒的高度沿所述次镜指向所述第一遮光筒的方向依次递增。
本申请还提供一种摄像头，包括图像传感器及所述的光学镜头，所述图像传感器设于所述主镜背离所述次镜的一侧并与所述次镜相对设置，所述图像传感器用于接收所述次镜反射的光线并将接收到的光线转换为电信号。
本申请还提供一种电子设备，包括显示屏及所述的摄像头，所述显示屏与所述摄像头电连接，所述显示屏用于显示所述摄像头拍摄的图像。
本申请还提供一种光学镜头，包括：
主镜，所述主镜具有朝向物侧的主镜反射面；
次镜，所述次镜与所述主镜从所述物侧至像侧依次排列并相对设置，所述次镜具有朝向所述像侧的次镜反射面；及
遮光组件，所述遮光组件包括透光基材及至少一个遮光环，所述透光基材用于使物侧射入的第一入射光线射于所述主镜反射面，所述透光基材设有第一凹槽和至少一个第二凹槽，所述次镜设于所述第一凹槽内，所述遮光环设于所述第二凹槽内并环绕于所述次镜的外周侧，所述遮光环用于吸收从所述物侧射入的第二入射光线。
其中，所述透光基材包括相背设置的第一表面和第二表面，所述第一表面朝向所述物侧，所述第二表面朝向所述主镜反射面，所述第一表面和所述第二表面皆为平面。
其中，所述遮光环的数量为多个，多个所述遮光环依次环绕于所述次镜的外周侧。
其中，多个所述遮光环的高度相同。
如图1所示，图1为本申请实施例提供的一种电子设备100的结构示意图。电子设备100可以是手机、平板电脑、笔记本电脑、个人计算机、手表、无人机、机器人、数码相机等具有拍摄功能的设备。本申请实施例以手机为例。
如图2所示，电子设备100包括摄像头1和显示屏2。摄像头1与显示屏2电连接。显示屏2用于显示摄像头1拍摄的图像。
一实施例中，显示屏2与摄像头1通过印刷电路板(Printed Circuit Board，PCB)、柔性电路板(Flexible Printed Circuit，FPC)等中的一个或多个电连接。摄像头1可将拍摄的图像通过PCB、FPC等中的一个或多个传输至显示屏2。
另一实施例中，电子设备100还包括主板3和电池4。显示屏2与摄像头1皆电连接于主板3上。主板3可将摄像头1拍摄的图像传输至显示屏2。当然，主板3上可设置处理器、存储器等对摄像头1拍摄的图像进行处理、存储等。电池4用于为主板3、显示屏2及摄像头1供电。
其中，电子设备100还包括外壳5。具体的，外壳5包括中框51和背板52。中框51与背板52可以一体成型也可以连接为一体。显示屏2连接于中框51背离背板52的一侧。显示屏2、中框51及背板52之间形成收容空间。摄像头1至少部分收容于收容空间内。本申请实施例提供的摄像头1可以为手机的前置摄像头模组也可以为手机的后置摄像头模组。以下实施例中以手机的后置摄像头模组为例。
摄像头1可以部分收容于收容空间内，也可以全部收容于收容空间内。一实施例中，摄像头1的一端收容于收容空间内，摄像头1的另一端贯穿背板52，并凸出于背板52之外。本实施例中，摄像头1可直接从电子设备100的外部获取光线并进行成像。当然，在其他实施例中，当摄像头1全部收容于收容空间内时，背板52需要透光，摄像头1可透过背板52获取光线。其中，当背板52透光时，背板52的材质可以为塑胶、玻璃等透光材质。
如图3所示，图3为本申请实施例提供的一种摄像头1的结构示意图。摄像头1包括光学镜头10和图像传感器20。摄像头1可以为伸缩式摄像头，也可以是固定式摄像头。伸缩式摄像头即摄像头1的图像传感器20固定，摄像头1的光学镜头10可相对于图像传感器20伸出或缩回；或者，摄像头1的光学镜头10固定，摄像头1的图像传感器20可相对于光学镜头10伸出或缩回；又或者，摄像头1的光学镜头10可相对于图像传感器20伸出或缩回，且摄像头1的图像传感器20可相对于光学镜头10伸出或缩回。伸缩式摄像头1有利于实现变焦。固定式摄像头1即光学镜头10与图像传感器20保持相对静止。
其中，图像传感器20可以是固态图像传感器20。图像传感器20包括电荷耦合元件(Charge Coupled Device，CCD)、金属氧化物半导体元件(Complementary Metal-Oxide Semiconductor，CMOS)等一种光电器件。图像传感器20用于接收光学镜头10射入的光线并进行成像。图像传感器20的光电器件具有光电转换功能，能够将感光面上的光线转换为与光线成相应比例关系的电信号。
如图4所示，图4为本申请实施例提供的一种光学镜头10的截面示意图。光学镜头10包括主镜101、次镜102和遮光组件103。
请参照图3至图5，次镜102与主镜101从物侧至像侧依次排列并相对设置。图像传感器20设于主镜101背离次镜102的一侧并与次镜102相对设置。换言之，次镜102、主镜101及图像传感器20从物侧至像侧依次排列。一实施例中，次镜102、主镜101及图像传感器20同轴设置。主镜101设有透光部110。透光部110与可以是主镜101上的透光区域104(例如：主镜101中材质为塑胶、玻璃等的透光区域)，也可以是透光通孔。透光部110、次镜102及图像传感器20同轴设置。其中，透光部110、次镜102及图像传感器20的共同轴线可参照图中的M线。M线也可以理解为光学镜头10的光轴。在透光部110与次镜102之间、透光部110内及透光部110与图像传感器20之间皆可以设置光学透镜，以对光线进行折射、散射、汇聚等，形成相应的光学系统。图像传感器20用于接收次镜102反射的光线并将接收到的光线转换为电信号。可以理解的，次镜102反射的光线经透光部110和/或光学透镜后射于图像传感器20。
主镜101可以为金属反射镜、镜面反射镜(例如：玻璃镀银反射镜)等。本申请实施例中主镜101以玻璃镀银反射镜为例。主镜101具有朝向物侧的主镜反射面112。主镜反射面112可以为平面、外凸平面、内凹平面、外凸弧形面、内凹弧形面等中的一种。当主镜反射面112为外凸弧形面或者内凹弧形面时，主镜反射面112可以为球面也可以为非球曲面。其中，物侧可以理解为所要拍摄的物体的所在侧。
次镜102可以为金属反射镜、镜面反射镜(例如：玻璃镀银反射镜)等。本申请实施例中次镜102以玻璃镀银反射镜为例。当然，在其他实施例中，次镜102与主镜101的材质可以不同。次镜102与主镜101间隔设置。次镜102与主镜101之间的距离可基于光学镜头10的焦距要求进行设定。次镜102具有朝向像侧的次镜反射面120。次镜反射面120可以为平面、外凸平面、内凹平面、外凸弧形面、内凹弧形面等中的一种。当次镜反射面120为外凸弧形面或者内凹弧形面时，次镜反射面120可以为球面也可以为非球曲面。可以理解的，次镜反射面120与主镜反射面112相对设置。其中，像侧可以理解为图像传感器20的所在侧。
请参照图5和图6，图6为本申请实施例提供的一种遮光组件103的结构示意图。遮光组件103用于遮挡光线。遮光组件103包括固定件130及第一遮光件131。
其中，固定件130可以是固定环、固定片等。本申请实施例中以固定环为例。固定件130采用非透光材质制成，例如：铝合金、不锈钢、铜等。固定件130设于次镜反射面120背离主镜101的一侧。换言之，固定件130设于次镜反射面120与物侧之间。可选的，固定件130环绕于次镜102背离主镜101的一端，以用于减少光学镜头10的高度，提高光学镜头10的紧凑性。当然，在其他实施例中，固定件130可以设于次镜102背离主镜101的一侧。
第一遮光件131包括一体成型的第一遮光筒131a和第一连接杆131b。第一遮光筒131a和第一连接杆131b一体成型可以减少成型第一遮光件131的工艺步骤，便于实现第一遮光件131的小型化以及批量化生产。第一遮光筒131a为中空结构。第一遮光筒131a可以是圆柱形筒、立方筒、正方筒及其他多边形筒等中的一种，本申请实施例中以圆柱形筒为例。第一遮光筒131a采用非透光材质制成，例如：铝合金、不锈钢、铜等。第一连接杆131b可以是圆 柱形杆、条形杆等中的一种，本申请实施例中以条形杆为例。第一连接杆131b的材质与第一遮光筒131a的材质相同，以便于一体成型第一遮光件131，简化成型第一遮光件131的工艺步骤。
第一遮光筒131a环绕于次镜102的外周侧并与次镜102间隔设置。可以理解的，第一遮光筒131a的内周侧与次镜102的外周侧相对并间隔设置。第一遮光筒131a的内周侧可以理解为第一遮光筒131a的内周侧面。次镜102的外周侧可以理解为次镜102的外周侧面。次镜102的外周侧面与次镜反射面120相邻。第一遮光筒131a与次镜102之间的间距可根据实际需要的光学镜头10的尺寸、次镜102与主镜101之间的间距以及成像质量要求等进行设计。第一连接杆131b远离第一遮光筒131a的一端朝向次镜102延伸并与固定件130固定连接。其中，第一连接杆131b与固定件130的连接方式包括但不限于粘接、焊接、螺栓连接等。固定件130可固定连接于第一连接杆131b朝向主镜反射面112的一侧，或者，固定件130固定连接于第一连接杆131b背离主镜反射面112的一侧，又或者，固定件130固定连接于第一连接杆131b远离第一遮光筒131a的一端的端面上。本申请实施例中，固定件130固定连接于第一连接杆131b朝向主镜反射面112的一侧。
第一遮光筒131a与次镜102的外周侧之间形成透光区域104。透光区域104用于使物侧射入的第一入射光线A射于主镜反射面112。第一遮光筒131a用于遮挡从物侧射入的第二入射光线B，以减少或避免物侧射入的光线射于主镜反射面112。第二入射光线B的入射角度大于或等于第一入射光线A的入射角度。需要说明的是，由于第一入射光线A的入射角度较小，因此使第一入射光线A经透光区域104射于主镜反射面112，第一入射光线A可经主镜反射面112与次镜反射面120而反射至图像传感器20，进行成像。由于第二入射光线B的入射角度较大，若第二入射光线B射于主镜反射面112，容易在主镜反射面112与次镜反射面120之间发生多次反射形成杂散光线，因此，通过第一遮光筒131a遮挡从物侧射入的第二入射光线B，可减少主镜101与次镜102之间的杂散光线，有利于提高成像质量。其中，第一入射光线A可以理解为从物侧射向光学镜头10的成像光线，第二入射光线B可以理解为从物侧射向光学镜头10的杂散光线。
本实施例提供的光学镜头10可使第一入射光线A射于主镜反射面112进行成像，第二入射光线B被第一遮光筒131a遮挡，从而能够减少光学系统中的杂光，实现高质量成像。此外，光学镜头10的遮光组件103包括固定件130和第一遮光件131，第一遮光件131一体成型，减少了工艺步骤，整个遮光组件103的成型步骤可分为加工第一遮光件131和连接固定件130与第一遮光件131，可逐步进行加工，且每个工艺步骤易于实现，从而便于制备小尺寸的遮光组件103以及批量化的遮光组件103，能够适用于小型化、批量化的光学镜头10中。进一步地，通过设置固定件130，由于固定件130设于次镜反射面120背离主镜101的一侧，因此可通过固定件130连接次镜102和第一遮光件131，便于次镜102、第一遮光件131连接为一体之后与主镜101进行对位，提高次镜102、遮光组件103及主镜101的位置精度，便于提升光学镜头10的光学性能。
进一步地，请参照图7和图8，遮光组件103还包括至少一个第二遮光件132。本申请对于第二遮光件132的数量不作具体的限定。例如：第二遮光件132的数量可以为一个、两个、三个、四个、五个等。
一实施例中，请参照图7和图8，第二遮光件132的数量为一个。第二遮光件132包括一体成型的第二遮光筒132a和第二连接杆132b。第二遮光筒132a和第二连接杆132b一体成型可以减少成型第二遮光件132的工艺步骤，便于实现第二遮光件132的小型化以及批量化生产。第二遮光筒132a为中空结构，第二遮光筒132a可以是圆柱形筒、立方筒、正方筒及其他多边形筒等中的一种，本申请实施例中以圆柱形筒为例。第二遮光筒132a采用非透光材质制成，例如：铝合金、不锈钢、铜等。第二连接杆132b可以是圆柱形杆、条形杆等中的一种，本申请实施例中以条形杆为例。第二连接杆132b的材质与第二遮光筒132a的材质相同，以便于一体成型第二遮光件132，简化成型第二遮光件132的工艺步骤。
第二遮光筒132a设于次镜102的外周侧与第一遮光筒131a之间，并与次镜102、第一遮光筒131a间隔设置。换言之，第二遮光筒132a的内周侧与次镜102的外周侧相对并间隔设置，第二遮光筒132a的外周侧与第一遮光筒131a的内周侧相对并间隔设置。第二遮光筒132a 的内周侧可以理解为第二遮光筒132a的内周侧面，第二遮光筒132a的外周侧可以理解为第二遮光筒132a的外周侧面。可以理解的，第二遮光筒132a的内径大于次镜的外径，且小于第一遮光筒131a的内径。
第二连接杆132b可以固定连接于第一连接杆131b朝向主镜反射面112的一侧，或者，第二连接杆132b固定连接于第一连接杆131b背离主镜反射面112的一侧，又或者，第二连接杆132b固定连接于固定件130朝向主镜反射面112的一侧。本实施例中，第二连接杆132b固定连接于第一连接杆131b朝向主镜反射面112的一侧。其中，第二连接杆132b的尺寸可小于第一连接杆131b的尺寸，以便于第二连接杆132b与第一连接杆131b固定连接。第二连接杆132b与第一连接杆131b的连接方式包括但不限于粘接、焊接、螺栓连接等。第二遮光筒132a与次镜102的外周侧之间形成第一透光区域141。第二遮光筒132a与第一遮光筒131a之间形成第二透光区域142。第一透光区域141和第二透光区域142皆用于使物侧射入的第一入射光线A射于主镜反射面112。第二遮光筒132a用于遮挡从物侧射入的第二入射光线B。
本实施例中通过设置第二遮光件132，第二遮光件132与第一遮光件131皆可以遮挡从物侧射入的第二入射光线B，可阻挡更多的杂光射于主镜反射面112，且在相同成像质量要求下可进一步地减少第二遮光件132的高度、第一遮光件131的高度，从而有利于减少光学镜头10的高度尺寸，实现光学镜头10的小型化。其中，第二遮光件132的高度为第二遮光件132沿Z轴方向的尺寸。第一遮光件131的高度为第一遮光件131沿Z轴方向的尺寸。本申请实施例中，Z轴方向与光学镜头10的光轴方向相同。
另一实施例中，请参照图9至图11，第二遮光件132的数量为多个。本申请实施例中以四个第二遮光件132为例，四个第二遮光件132分别记为第一子遮光件1321、第二子遮光件1321、第三子遮光件1322及第四子遮光件1323。其中，第一子遮光件1321包括一体成型的第一子遮光筒132c和第一子连接杆132d。第二子遮光件1321包括一体成型的第二子遮光筒132e和第二子连接杆132f。第三子遮光件1322包括一体成型的第三子遮光筒132g和第三子连接杆132h。第四子遮光件1323包括一体成型的第四子遮光筒132i和第四子连接杆132j。第一子遮光筒132c、第二子遮光筒132e、第三子遮光筒132g及第四子遮光筒132i皆为中空结构。第一子遮光筒132c、第二子遮光筒132e、第三子遮光筒132g及第四子遮光筒132i可以是圆柱形筒、立方筒、正方筒及其他多边形筒等中的一种，本申请实施例中皆以圆柱形筒为例。第一子遮光筒132c、第二子遮光筒132e、第三子遮光筒132g及第四子遮光筒132i皆采用非透光材质制成，例如：铝合金、不锈钢、铜等。第一子连接杆132d、第二子连接杆132f、第三子连接杆132h及第四子连接杆132j可以是圆柱形杆、条形杆等中的一种，本申请实施例中皆以条形杆为例。第一子连接杆132d的材质与第一子遮光筒132c的材质相同。第二子连接杆132f的材质与第二子遮光筒132e的材质相同。第三子连接杆132h的材质与第三子遮光筒132g的材质相同。第四子连接杆132j的材质与第四子遮光筒132i的材质相同。第一子遮光筒132c、第二子遮光筒132e、第三子遮光筒132g及第四子遮光筒132i沿次镜102指向第一遮光筒131a的方向依次排列。其中，第一子遮光筒132c的直径小于第二子遮光筒132e的直径，第二子遮光筒132e的直径小于第三子遮光筒132g的直径，第三子遮光筒132g的直径小于第四子遮光筒132i的直径。第一子连接杆132d、第二子连接杆132f、第三子连接杆132h及第四子连接杆132j沿次镜102指向第一遮光筒131a的方向依次排列于第一连接杆131b朝向主镜反射面112的一侧。其中，次镜102指向第一遮光筒131a的方向可参照附图的Y轴方向。相邻的两个第二遮光筒132a间隔设置。本实施例中即第一子遮光筒132c与第二子遮光筒132e间隔设置，第二子遮光筒132e与第三子遮光筒132g间隔设置，第三子遮光筒132g与第四子遮光筒132i间隔设置。相邻的两个第二遮光筒132a之间形成第三透光区域143。可以理解的，第一子遮光筒132c与次镜102之间形成第一透光区域141。第四子遮光筒132i与第一遮光筒131a之间形成第二透光区域142。第一子遮光筒132c与第二子遮光筒132e之间形成第一子透光区域143a，第二子遮光筒132e与第三子遮光筒132g之间形成第二子透光区域143b，第三子遮光筒132g与第四子遮光筒132i之间形成第三子透光区域143c，第一子透光区域143a、第二子透光区域143b及第三子透光区域143c皆为第三透光区域143。第三透光区域143用于使物侧射入的第一入射光线A射于主镜反射面112。可以理解的，本实施例中，第一透光区域141、第二透光区域142及第三透光区域143皆用于使物侧射入的第一 入射光线A射于主镜反射面112。第一遮光筒131a、第一子遮光筒132c、第二子遮光筒132e、第三子遮光筒132g及第四子遮光筒132i皆用于遮挡从物侧射入的第二入射光线B。
本实施例中第二遮光件132的数量较多，第二遮光件132与第一遮光件131皆可以遮挡从物侧射入的第二入射光线B，可阻挡更多的杂光射于主镜反射面112，且在相同成像质量要求下可进一步地减少每个第二遮光件132的高度、第一遮光件131的高度，从而更有利于减少光学镜头10的高度尺寸，实现光学镜头10的小型化。
一实施方式中，相邻的两个第二遮光筒132a之间的间距沿次镜102指向第一遮光筒131a的方向依次递增且第二遮光筒132a的高度依次递增。具体的，第一子遮光筒132c与第二子遮光筒132e之间的间距小于第二子遮光筒132e与第三子遮光筒132g之间的间距。第二子遮光筒132e与第三子遮光筒132g之间的间距小于第三子遮光筒132g与第四子遮光筒132i之间的间距。第一子遮光筒132c的高度小于第二子遮光筒132e的高度。第二子遮光筒132e的高度小于第三子遮光筒132g的高度。第三子遮光筒132g的高度小于第四子遮光筒132i的高度。本实施方式中多个第二遮光筒132a对从物侧中心射入的光线的遮挡较多，对从物侧边缘射入的光线的遮挡较少，在阻挡物侧射入的第二入射光线B的同时可以提高中心与边缘的第一入射光线A的进光量的一致性，从而提高成像的均匀性。
其中，遮光组件103由以下实施例所述的遮光组件103的制备方法制成。
如图12所示，图12为本申请实施例提供的一种遮光组件103的制备方法的流程示意图。遮光组件103的制备方法包括但不限于以下步骤S101、S102、S103和S104。以下实施例提供的遮光组件103可用于减少光学镜头10的杂光。
S101：加工第一原材以形成第一基材；其中，所述第一原材呈长片状；所述第一基材包括第一主体部和位于所述第一主体部上的多个第一弯折臂，所述第一主体部呈长片状，多个所述第一弯折臂间隔排列于所述第一主体部的一个长边上。
其中，如图13所示，第一原材105采用非透光材质。第一原材105可以为不锈钢片或者铝合金片。第一基材106的第一主体部160的宽度尺寸小于第一原材105的宽度尺寸，第一主体部160的长度尺寸小于或者等于第一原材105的长度尺寸。本申请实施例中以第一主体部160的长度尺寸等于第一原材105的长度尺寸为例。
一实施方式中，加工第一原材105以形成第一基材106包括采用切割、冲切、蚀刻中的至少一种工艺方法加工第一原材105以形成第一基材106。例如：采用切割、冲切、蚀刻中的一种工艺方法加工第一原材105以形成第一基材106；或者，采用切割、冲切、蚀刻中的任意两种工艺方法加工第一原材105以形成第一基材106；又或者，采用切割、冲切、蚀刻三种工艺方法加工第一原材105以形成第一基材106。当采用切割工艺加工第一原材105以形成第一基材106时，可以是线切割工艺也可以激光切割工艺。可以理解的，加工第一原材105以形成第一基材106即通过去除第一原材105的部分材质以形成具有第一主体部160和第一弯折臂161的第一基材106。
S102：加工所述第一基材以形成第一遮光件，使所述第一主体部形成所述第一遮光件的第一遮光筒，使多个所述第一弯折臂形成所述第一遮光件的多个第一连接杆；其中，所述第一遮光筒呈环状，所述第一遮光筒用于消除所述光学镜头内的杂光，所述第一连接杆相对于所述第一遮光筒向内弯折。
如图13所示，第一遮光筒131a呈环状。可选的，第一遮光筒131a呈圆环状、矩形环状或者方形环状及其他多边形环状中的一种。本申请实施例中以圆环状为例。
一实施方式中，加工所述第一基材106以形成第一遮光件131，使所述第一主体部160形成所述第一遮光件131的第一遮光筒131a，使多个所述第一弯折臂161形成所述第一遮光件131的多个第一连接杆131b，包括：采用环形治具固定所述第一基材106，将所述第一主体部160的两个短边连接形成第一遮光筒131a，将多个所述第一弯折臂161皆向内弯折80°～100°形成多个第一连接杆131b，其中，所述第一遮光筒131a与多个所述第一连接杆131b形成第一遮光件131。
本申请实施例中可采用圆柱形治具固定第一基材106，即可以将第一基材106环绕于圆柱形治具的外周侧，使第一基材106与圆柱形治具的周侧面贴合。当然，在其他实施例中，可根据要求的第一遮光筒131a的形状选择相应的环形治具，例如：方形治具、矩形治具等。 其中，第一主体部160的两个短边的连接方式包括但不限于焊接、粘接以及螺栓连接等。本申请中为便于简化第一遮光件131的加工步骤以及便于实现第一遮光件131的小型化可通过焊接或者粘接的方式将第一主体部160的两个短边的连接。将多个第一弯折臂161皆向内弯折80°～100°形成多个第一连接杆131b可以是通过压弯的方式将多个第一弯折臂161皆向内弯折80°～100°形成多个第一连接杆131b。可选的，第一弯折臂161的弯折角度为90°，使多个第一弯折臂161弯折并贴合于圆柱形治具的顶面或者底面，形成多个第一连接杆131b。
S103：提供固定件，使所述固定件连接于多个所述第一连接杆远离所述第一遮光筒的一端。
如图13所示，其中，固定件130可以为固定环、固定片等。本申请实施例中，固定件130为圆形固定环。一实施方式中，使所述固定件130连接于多个所述第一连接杆131b远离所述第一遮光筒131a的一端，包括使所述固定件130粘接或者焊接于多个所述第一连接杆131b远离所述第一遮光筒131a的一端的端面，或者，使所述固定件130粘接或者焊接于多个所述第一连接杆131b的底面，或者，使所述固定件130粘接或者焊接于多个所述第一连接杆131b的顶面。其中，第一连接杆131b的顶面可以理解为附图13中第一连接杆131b朝上的表面；第一连接杆131b的底面可以理解为附图13中第一连接杆131b朝下的表面。通过焊接或者粘接的方式将固定件130与多个第一连接杆131b连接，可提高第一遮光件131的可靠性，减少或者避免固定件130与第一连接杆131b出现松动等。当然，在其他实施方式中，固定件130与第一连接杆131b的连接方式可以是螺纹连接，固定件130可与多个第一连接杆131b中的部分第一连接杆131b或全部的第一连接杆131b连接。
S104：形成遮光组件。
可以理解的，本实施例中，遮光组件103包括固定件130和第一遮光件131。
本申请提供的遮光组件103的制备方法通过加工第一原材105形成第一基材106，加工第一基材106形成第一遮光件131，将固定件130与多个第一连接杆131b连接三个工艺步骤形成遮光组件103，每个工艺步骤简单、易于实现且适用于小尺寸加工，从而可用于制备小尺寸的遮光组件103。本申请提供的遮光组件103由上述制备方法制成，因此遮光组件103可进行小型化。本申请提供的光学镜头10由于包括上述制备方法制成的遮光组件103，因此光学镜头10可进行小型化。本申请提供的摄像头1由于包括上述光学镜头10，因此摄像头1可进行小型化，适用于手机等空间有限的电子设备100。本申请提供的电子设备100由于包括上述摄像头1，摄像头1尺寸较小所占用的空间较少，易于排布于空间有限的电子设备100，且电子设备100可进行小型化。
如图14所示，图14为本申请实施例提供的另一种遮光组件103的制备方法的流程示意图，与上述实施例提供的遮光组件103的制备方法的不同之处在于在步骤S103之后，步骤S104之前还包括以下步骤S105、S106、S107和S108。
S105：加工至少一个第二原材以形成至少一个第二基材；其中，所述第二原材呈长片状；所述第二基材包括第二主体部和位于所述第二主体部上的多个第二弯折臂，所述第二主体部呈长片状，多个所述第二弯折臂间隔排列于所述第二主体部的一个长边上。
一实施例中，如图15所示，加工一个第二原材107以形成一个第二基材108；其中，第二原材107呈长片状。第二原材107采用非透光材质。第二原材107可以为不锈钢片或者铝合金片。第二原材107的长度小于第一原材105的长度。第二原材107的宽度可小于、等于或者大于第一原材105的宽度。第二主体部180的长度与第二原材107的长度相同。第二主体部180的宽度尺寸小于第二原材107的宽度尺寸当然，在其他实施方式中，第二主体部180的长度可小于第二原材107的长度。多个第二弯折臂181均匀排布于第二主体部180上。
一实施方式中，加工第二原材107以形成第二基材108包括采用切割、冲切、蚀刻中的至少一种工艺方法加工第二原材107以形成第二基材108。例如：采用切割、冲切、蚀刻中的一种工艺方法加工第二原材107以形成第二基材108；或者，采用切割、冲切、蚀刻中的任意两种工艺方法加工第二原材107以形成第二基材108；又或者，采用切割、冲切、蚀刻三种工艺方法加工第二原材107以形成第二基材108。当采用切割工艺加工第二原材107以形成第二基材108时，可以是线切割工艺也可以激光切割工艺。可以理解的，加工第二原材107以形成第二基材108即通过去除第二原材107的部分材质以形成具有第二主体部180和 第二弯折部的第二基材108。
另一实施例中，加工多个第二原材107以形成多个第二基材108；其中，每个第二原材107呈长片状。每个第二基材108包括第二主体部180和位于第二主体部180上的多个第二弯折臂181。本实施方式中第二原材107、第二基材108的形状、材质、结构以及加工方式可参照上述实施方式。其中，多个第二原材107的长度各不相同，以加工出长度各不相同的第二基材108。
S106：加工所述第二基材以形成第二遮光件，使所述第二主体部形成所述第二遮光件的第二遮光筒，使多个所述第二弯折臂形成所述第二遮光件的多个第二连接杆；其中，所述第二遮光筒呈环状，所述第二遮光筒用于消除所述光学镜头内的杂光，所述第二连接杆相对于所述第二遮光筒向内弯折。
如图15所示，第二遮光筒132a呈环状。可选的，第二遮光筒132a呈圆环状、矩形环状或者方形环状及其他多边形环状中的一种。本申请实施例中以圆环状为例。当加工多个第二基材108形成多个第二遮光件132时，由于多个第二基材108的长度各不相同，因此加工出的第二遮光件的第二遮光筒的直径各不相同。
一实施方式中，加工所述第二基材108以形成第二遮光件132，使所述第二主体部180形成所述第二遮光件132的第二遮光筒132a，使多个所述第二弯折臂181形成所述第二遮光件132的多个第二连接杆132b，包括采用环形治具固定所述第二基材108，将所述第二主体部180的两个短边连接形成第二遮光筒132a，将多个所述第二弯折臂181皆向内弯折80°～100°形成多个第二连接杆132b，其中，所述第二遮光筒132a与多个所述第二连接杆132b形成第二遮光件132。
本申请实施例中可采用圆柱形治具固定第二基材108，即可以将第二基材108环绕于圆柱形治具的外周侧，使第二基材108与圆柱形治具的周侧面贴合。由于第二基材108的长度与第一基材108的长度不同，因此所采用的圆柱形治具的直径不同。当加工多个第二基材108形成多个第二遮光件132时，可根据相应的第二基材108的长度，选择相应尺寸的圆柱形治具。当然，在其他实施例中，可根据要求的第二遮光筒132a的形状选择相应的环形治具，例如：方形治具、矩形治具等。其中，第二主体部180的两个短边的连接方式包括但不限于焊接、粘接以及螺栓连接等。本申请中为便于简化第二遮光件132的加工步骤以及便于实现第二遮光件132的小型化可通过焊接或者粘接的方式将第二主体部180的两个短边的连接。将多个第二弯折臂181皆向内弯折80°～100°形成多个第二连接杆132b可以是通过压弯的方式将多个第二弯折臂181皆向内弯折80°～100°形成多个第一连接杆131b。可选的，第二弯折臂181的弯折角度为90°，使多个第二弯折臂181弯折并贴合于圆柱形治具的顶面或者底面，形成多个第二连接杆132b。其中，第二弯折臂181的长度小于第一弯折臂161的长度。
S107：将多个所述第二连接杆皆连接于所述第一连接杆上，使所述第二遮光筒与所述第一遮光筒131a相对并间隔设置。
其中，第二连接杆132b与第一连接杆131b的连接方式包括但不限于焊接、粘接、螺纹连接等。例如：第二连接杆132b与第一连接杆131b焊接。通过焊接的方式将第二连接杆132b与第一连接杆131b连接，可提高遮光组件103的可靠性，减少或者避免第二连接杆132b与第一连接杆131b出现松动等。
一实施方式中，请参照图15和图16，第二遮光件132的数量为多个，且多个所述第二遮光件132的第二遮光筒132a的直径不同。将多个所述第二连接杆132b皆连接于所述第一连接杆131b上，使所述第二遮光筒132a与所述第一遮光筒131a相对并间隔设置，包括：依照多个所述第二遮光筒132a的直径由大到小依次沿所述第一遮光筒指向所述固定件的方向将每个所述第二遮光筒132a对应的多个所述第二连接杆132b皆连接于所述第一连接杆131b上，使每个所述第二遮光筒132a对应的多个所述第二连接杆132b依照连接顺序从所述第一遮光筒131a至所述固定件130的方向依次排列，使每个所述第二遮光筒132a与所述第一遮光筒131a相对并间隔设置，且使相邻的两个所述第二遮光筒132a间隔设置。可以理解的，多个第二遮光件132从外到内进行组装，且多个第二遮光件132的组装顺序为直径由大到小，即先组装直径较大的第二遮光件132。本实施方式提供的遮光组件103的组装方式，在组装第二遮光件132时，第一连接杆131b与固定件130可支撑第二遮光件132，从而可提高第二 连接杆132b与第一连接杆131b之间的连接可靠性，避免出现虚焊或者粘接不牢固等。其中，第二连接杆132b可直接连接于第一连接杆131b的顶面或者底面，也可通过连接于固定件130上以连接第一连接杆131b。
S108：对所述第一遮光件的外表面和所述第二遮光件的外表面进行处理，使所述第一遮光件的外表面形成第一吸光层，使所述第二遮光件的外表面喷形成第二吸光层，所述第一吸光层和所述第二吸光层皆用于吸收所述光学镜头内的杂光。
一实施方式中，对第一遮光件131的外表面进行喷漆和亚光处理，使第一遮光件131的外表面形成黑色第一吸光层，对第二遮光件132的外表面进行喷漆和亚光处理，使第二遮光件132的外表面形成黑色第二吸光层。其中，第一吸光层与第二吸光层可以吸收光线并转换为其他形式的能量(例如：热能)。本实施方式中第一遮光件131和第二遮光件132不仅可以遮挡杂光，还能够吸收杂光，从而减少或避免杂光发生反射、折射后射于光学镜头10内部。
可以理解的，本实施例遮光组件103包括固定件130、第一遮光件131及一个或多个第二遮光件132。由于设置了一个或多个第二遮光件132，因此可提高遮光组件103的遮光效果。第一遮光件131与第二遮光件132皆采用简单、可小型化的加工方式进行加工后再组装，使得整体的遮光组件103可通过几个易于实现的加工步骤逐步加工完成，适用于小型化、批量化生产的光学镜头10。
此外，如图17所示，本申请还提供了另一种光学镜头30。光学镜头30包括主镜301、次镜302及遮光组件303。其中，主镜301与上述光学镜头10的主镜101相同，次镜30与上述光学镜头10的次镜102相同，即主镜301具有朝向物侧的主镜反射面，次镜302与主镜301从物侧至像侧依次排列并相对设置，次镜302具有朝向像侧的次镜反射面。遮光组件303与上述光学镜头10的遮光组件103不同。
具体的，遮光组件303包括透光基材330及至少一个遮光环331。其中，透光基材可以是透光的塑胶板、玻璃板等。透光基材330用于使物侧射入的第一入射光线射于主镜反射面112。透光基材330设有第一凹槽330a和至少一个第二凹槽330b。次镜302设于第一凹槽330a内。遮光环331设于第二凹槽330b内并环绕于次镜302的外周侧。遮光环331用于吸收从物侧射入的第二入射光线。可选的，通过在透光基材330蚀刻形成第二凹槽330b，于第二凹槽330b内填充黑色吸光剂或者黑色染料等形成遮光环331。
一实施例中，透光基材330包括相背设置的第一表面3301和第二表面3302，第一表面3301朝向物侧，第二表面3302朝向主镜反射面112，第一表面3301和第二表面3302皆为平面。本实施例可减少透光基材330对入射光线的影响。当然，在其他实施例中，第一表面3301和第二表面3302也可以设计为弧形面。
其中，遮光环331的数量为多个，多个遮光环331依次环绕于次镜302的外周侧且多个遮光环331的高度相同。
本实施例提供的光学镜头30直接在透光基材330上成型遮光环331，通过遮光环331遮挡从物侧射入的第二入射光线，从而减少光学系统中的杂光，实现高质量成像，且直接在透光基材330上成型遮光环331的工艺简单，易于实现，便于制备小尺寸的光学镜头30以及批量化生产光学镜头30。
上述在说明书、权利要求书以及附图中提及的特征，只要在本申请的范围内是有意义的，均可以任意相互组合。针对遮光组件303所说明的优点和特征以相应的方式适用于光学镜头10、摄像头1及电子设备100。
尽管上面已经示出和描述了本申请的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本申请的限制，本领域的普通技术人员在本申请的范围内可以对上述实施例进行变化、修改、替换和变型，这些改进和润饰也视为本申请的保护范围。

Claims (20)

  1. 一种遮光组件的制备方法，所述遮光组件用于光学镜头，所述方法包括：
    加工第一原材以形成第一基材；其中，所述第一原材呈长片状；所述第一基材包括第一主体部和位于所述第一主体部上的多个第一弯折臂，所述第一主体部呈长片状，多个所述第一弯折臂间隔排列于所述第一主体部的一个长边上；
    加工所述第一基材以形成第一遮光件，使所述第一主体部形成所述第一遮光件的第一遮光筒，使多个所述第一弯折臂形成所述第一遮光件的多个第一连接杆；其中，所述第一遮光筒呈环状，所述第一遮光筒用于消除所述光学镜头内的杂光，所述第一连接杆相对于所述第一遮光筒向内弯折；
    提供固定件，使所述固定件连接于多个所述第一连接杆远离所述第一遮光筒的一端；
    形成遮光组件。
  2. 根据权利要求1所述的制备方法，所述加工第一原材以形成第一基材，包括：
    采用切割、冲切、蚀刻中的至少一种工艺方法加工第一原材以形成第一基材。
  3. 根据权利要求1所述的制备方法，所述加工所述第一基材以形成第一遮光件，使所述第一主体部形成所述第一遮光件的第一遮光筒，使多个所述第一弯折臂形成所述第一遮光件的多个第一连接杆，包括：
    采用环形治具固定所述第一基材，将所述第一主体部的两个短边连接形成第一遮光筒，将多个所述第一弯折臂皆向内弯折80°～100°形成多个第一连接杆，其中，所述第一遮光筒与多个所述第一连接杆形成第一遮光件。
  4. 根据权利要求1所述的制备方法，所述使所述固定件连接于多个所述第一连接杆远离所述第一遮光筒的一端，包括：
    使所述固定件粘接或者焊接于多个所述第一连接杆远离所述第一遮光筒的一端。
  5. 根据权利要求1所述的制备方法，在所述形成遮光组件之前，还包括：
    加工至少一个第二原材以形成至少一个第二基材；其中，所述第二原材呈长片状；所述第二基材包括第二主体部和位于所述第二主体部上的多个第二弯折臂，所述第二主体部呈长片状，多个所述第二弯折臂间隔排列于所述第二主体部的一个长边上；
    加工所述第二基材以形成第二遮光件，使所述第二主体部形成所述第二遮光件的第二遮光筒，使多个所述第二弯折臂形成所述第二遮光件的多个第二连接杆；其中，所述第二遮光筒呈环状，所述第二遮光筒用于消除所述光学镜头内的杂光，所述第二连接杆相对于所述第二遮光筒向内弯折；
    将多个所述第二连接杆皆连接于所述第一连接杆上，使所述第二遮光筒与所述第一遮光筒相对并间隔设置。
  6. 根据权利要求5所述的制备方法，所述第二遮光件的数量为多个，且多个所述第二遮光件的第二遮光筒的直径不同；所述将多个所述第二连接杆皆连接于所述第一连接杆上，使所述第二遮光筒与所述第一遮光筒相对并间隔设置，包括：
    依照多个所述第二遮光筒的直径由大到小依次沿所述第一遮光筒指向所述固定件的方向将每个所述第二遮光筒对应的多个所述第二连接杆连接于所述第一连接杆上，使每个所述第二遮光筒对应的多个所述第二连接杆依照连接顺序从所述第一遮光筒至所述固定件的方向依次排列，使每个所述第二遮光筒与所述第一遮光筒相对并间隔设置，且使相邻的两个所述第二遮光筒间隔设置。
  7. 根据权利要求5所述的制备方法，所述第一原材为不锈钢片或者铝合金片，所述第二原材为不锈钢片或者铝合金片。
  8. 根据权利要求5所述的制备方法，在所述将多个所述第二连接杆皆连接于所述第一连接杆上，使所述第二遮光筒与所述第一遮光筒相对并间隔设置之后，所述形成遮光组件之前，所述方法还包括：
    对所述第一遮光件的外表面和所述第二遮光件的外表面进行处理，使所述第一遮光件的外表面形成第一吸光层，使所述第二遮光件的外表面喷形成第二吸光层，所述第一吸光层和 所述第二吸光层皆用于吸收所述光学镜头内的杂光。
  9. 一种遮光组件，由权利要求1至8任意一项所述的遮光组件的制备方法制成。
  10. 一种光学镜头，包括：
    主镜，所述主镜具有朝向物侧的主镜反射面；
    次镜，所述次镜与所述主镜从所述物侧至像侧依次排列并相对设置，所述次镜具有朝向所述像侧的次镜反射面；及
    遮光组件，所述遮光组件包括固定件及第一遮光件，所述固定件设于所述次镜反射面背离所述主镜的一侧，所述第一遮光件包括一体成型的第一遮光筒和第一连接杆，所述第一遮光筒环绕于所述次镜的外周侧并与所述次镜间隔设置，所述第一连接杆远离所述第一遮光筒的一端朝向所述次镜延伸并与所述固定件固定连接，所述第一遮光筒与所述次镜的外周侧之间形成透光区域，所述透光区域用于使所述物侧射入的第一入射光线射于所述主镜反射面，所述第一遮光筒用于遮挡从所述物侧射入的第二入射光线，所述第二入射光线的入射角度大于或等于所述第一入射光线的入射角度。
  11. 根据权利要求10所述的光学镜头，所述遮光组件还包括至少一个第二遮光件，所述第二遮光件包括一体成型的第二遮光筒和第二连接杆，所述第二遮光筒设于所述次镜的外周侧与所述第一遮光筒之间，并与所述次镜、所述第一遮光筒间隔设置，所述第二连接杆固定连接所述第一连接杆，所述第二遮光筒与所述次镜的外周侧之间形成第一透光区域，所述第二遮光筒与所述第一遮光筒之间形成第二透光区域，所述第一透光区域和所述第二透光区域用于使所述物侧射入的第一入射光线射于所述主镜反射面，所述第二遮光筒用于吸收从所述物侧射入的第二入射光线。
  12. 根据权利要求11所述的光学镜头，所述第二遮光件的数量为多个，相邻的两个所述第二遮光筒间隔设置且相邻的两个所述第二遮光筒之间形成第三透光区域，所述第三透光区域用于使所述物侧射入的第一入射光线射于所述主镜反射面。
  13. 根据权利要求12所述的光学镜头，相邻的两个所述第二遮光筒之间的间距沿所述次镜指向所述第一遮光筒的方向依次递增。
  14. 根据权利要求12所述的光学镜头，多个所述第二遮光筒的高度沿所述次镜指向所述第一遮光筒的方向依次递增。
  15. 一种摄像头，包括图像传感器及如权利要求10至14任意一项所述的光学镜头，所述图像传感器设于所述主镜背离所述次镜的一侧并与所述次镜相对设置，所述图像传感器用于接收所述次镜反射的光线并将接收到的光线转换为电信号。
  16. 一种电子设备，包括显示屏及如权利要求15所述的摄像头，所述显示屏与所述摄像头电连接，所述显示屏用于显示所述摄像头拍摄的图像。
  17. 一种光学镜头，包括：
    主镜，所述主镜具有朝向物侧的主镜反射面；
    次镜，所述次镜与所述主镜从所述物侧至像侧依次排列并相对设置，所述次镜具有朝向所述像侧的次镜反射面；及
    遮光组件，所述遮光组件包括透光基材及至少一个遮光环，所述透光基材用于使物侧射入的第一入射光线射于所述主镜反射面，所述透光基材设有第一凹槽和至少一个第二凹槽，所述次镜设于所述第一凹槽内，所述遮光环设于所述第二凹槽内并环绕于所述次镜的外周侧，所述遮光环用于吸收从所述物侧射入的第二入射光线。
  18. 根据权利要求17所述的光学镜头，所述透光基材包括相背设置的第一表面和第二表面，所述第一表面朝向所述物侧，所述第二表面朝向所述主镜反射面，所述第一表面和所述第二表面皆为平面。
  19. 根据权利要求17所述的光学镜头，所述遮光环的数量为多个，多个所述遮光环依次环绕于所述次镜的外周侧。
  20. 根据权利要求19所述的光学镜头，多个所述遮光环的高度相同。
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