CN110271211A - Lens manufacturing method, lens, camera module and electronic device - Google Patents

Abstract

The application discloses a lens manufacturing method, a lens, a camera module and an electronic device. The manufacturing method of the lens comprises the following steps: providing a lens forming body; removing the ineffective part of the lens molding body to obtain the lens. The lens comprises an optical part and a non-optical part extending from the periphery of the optical part, wherein the optical part comprises an object side surface and a side surface connected with the object side surface, the non-optical part comprises a mounting surface connected with the side surface, and the side surface is a circular table top. In the lens manufactured by the manufacturing method of the embodiment of the present application, when the lens is set in the lens barrel, the lens barrel can surround the round table surface of the optical portion, and the mounting surface of the non-optical portion abuts against the lens barrel. Therefore, the radial dimension of the lens barrel can be reduced, thereby reducing the lens size.

Description

Manufacturing method of lens, lens, lens, camera module and electronic device

technical field

The present application relates to the technical field of optical imaging, and more particularly, to a method for manufacturing a lens, a lens, a lens, a camera module and an electronic device.

Background technique

In order to bring a better screen display experience to users, the screen ratio of electronic devices is getting higher and higher. In the related art, the front camera is exposed through the opening of the screen by opening a hole in the screen. It can be understood that the smaller the opening of the screen, the higher the screen ratio of the electronic device. However, blindly reducing the screen opening will lead to problems such as a decrease in the field of view of the front camera and a dark edge of the captured image. Therefore, how to reduce the size of the object side of the camera under the premise of ensuring the shooting effect of the front camera, so as to reduce the screen opening and increase the screen ratio, is a problem worthy of study.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a method for manufacturing a lens, a lens, a lens, a camera module, and an electronic device.

The manufacturing method of the lens of the embodiment of the present application includes:

providing a lens molding body;

Removing ineffective portions of the lens molding body to obtain a lens, wherein the lens includes an optic portion and a non-optic portion extending from a periphery of the optic portion, the optic portion including an object-side surface and connecting the object-side surface The side surface of the non-optical part includes a mounting surface connected with the side surface, and the side surface is a circular mesa.

The lens of the embodiment of the present application includes an optical portion and a non-optical portion extending from a peripheral edge of the optical portion. The optical portion includes an object-side surface and a side surface connecting the object-side surface. The side surface is a round table. The non-optical portion includes a mounting surface connected to the side surface.

The lens according to the embodiment of the present application includes a lens barrel and the lens described in the above embodiment. The lens barrel includes a barrel body and a light shielding portion connected to the barrel body. The light shielding portion extends toward the object side. The lens is arranged in the lens barrel, and the light shielding portion surrounds the side surface.

The lens according to the embodiment of the present application includes a lens barrel and the lens described in the above embodiment. The lens barrel includes a first barrel body and a second barrel body arranged from the object side to the image side of the lens. The first cylindrical body communicates with the second cylindrical body. The first cylindrical body includes a light shielding portion extending toward the object side. The lens is arranged in the first barrel, and the light shielding portion surrounds the side surface.

The camera module of the embodiment of the present application includes a substrate, the lens and the image sensor described in the above embodiment. The lens is arranged on the base plate. The image sensor is arranged on the substrate and corresponds to the lens.

An electronic device according to an embodiment of the present application includes a casing, a display module disposed on the casing, and the camera module described in the above embodiments. The display module is provided with a light-passing hole. The lens of the camera module is arranged corresponding to the light-transmitting hole.

In the method for manufacturing the lens, the lens, the lens, the camera module and the electronic device according to the embodiments of the present application, when the lens is arranged in the lens barrel, the lens barrel can surround the circular mesa surface of the optical part, and the mounting surface of the non-optical part can By the lens barrel. Therefore, the radial dimension of the lens barrel can be reduced, thereby reducing the size of the lens.

Additional aspects and advantages of embodiments of the present application will be set forth, in part, in the following description, and in part will be apparent from the following description, or learned by practice of embodiments of the present application.

Description of drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

FIG. 1 is a schematic process diagram of a method for manufacturing a lens according to an embodiment of the present application;

2 is a schematic flowchart of a method for manufacturing a lens according to an embodiment of the present application;

3 is a cross-sectional view of a lens of an embodiment of the present application;

4-7 are cross-sectional views of lenses according to embodiments of the present application;

8 and 9 are cross-sectional views of a camera module according to an embodiment of the present application;

10-15 are cross-sectional views of an electronic device according to an embodiment of the present application;

FIG. 16 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed ways

The embodiments of the present application will be further described below with reference to the accompanying drawings. The same or similar reference numbers refer to the same or similar elements or elements having the same or similar functions throughout the drawings.

In addition, the embodiments of the present application described below in conjunction with the accompanying drawings are exemplary, only used to explain the embodiments of the present application, and should not be construed as limitations on the present application.

Referring to FIG. 1 and FIG. 2 , the manufacturing method of the lens 10 according to the embodiment of the present application includes:

Step S10: providing a lens molding body 102;

Step S20 : removing the invalid portion 104 of the lens molding body 102 to obtain the lens 10 .

The lens 10 includes an optical portion 12 and a non-optical portion 14 extending from the periphery of the optical portion 12 . Optical portion 12 includes object-side surface 122 and side surfaces 124 that connect object-side surface 122 . The non-optical portion 14 includes a mounting surface 142 connected to the side surface 124 . The side surface 124 is a circular mesa.

In the lens 10 manufactured by the manufacturing method of the embodiment of the present application, when the lens 10 is installed in the lens barrel, the lens barrel can surround the circular mesa surface of the optical portion 12, and the mounting surface 142 of the non-optical portion 14 can abut the lens barrel. Therefore, the radial dimension of the lens barrel can be reduced, thereby reducing the size of the lens.

It can be understood that the ineffective portion 104 of the outer periphery of the lens molding body 102 is removed to form the circular mesa side surface 124 of the optical portion 12 and the mounting surface 142 of the non-optical portion 14 . The radial dimension of the optic 12 of the lens 10 is smaller than the radial dimension of the lens 10 . The lens 10 is arranged in the lens barrel, and the lens barrel can surround the optical part 12 instead of the entire lens 10, so that the radial dimension of the lens barrel can be smaller than that of the lens 10, thereby reducing the size of the lens. For example, by arranging the lens 10 on the object side of the lens barrel, the size of the object side of the lens can be reduced.

It should be noted that the circular mesa can be understood as a curved surface in which the top portion of the conical surface is truncated. The extension line of the generatrix of the circular mesa crosses the optical axis A of the lens 10 .

In certain embodiments, the material of the lens molding body 102 is glass and is obtained by an in-mold molding process.

Specifically, the glass blank can be placed in a forming mold, then the forming mold and the glass blank can be heated at the same time, and when the glass blank is softened, the glass blank is punched by the forming die to deform the glass blank. When the glass blank reaches a temperature below the glass transition point When the temperature is high, the lens molding body 102 is taken out from the molding die. Of course, it is also possible to preheat the glass blank by molding outside the mold, and place the preheated glass blank in a molding mold heated to a predetermined temperature, and then press and shape the glass blank until the glass blank reaches the glass transition point temperature or less. When the temperature is high, the lens molding body 102 is taken out from the molding die.

In certain embodiments, the dead portion 104 is removed by coring and edging.

Specifically, the method of core edging includes: rotating the lens molding body 102 around the optical axis, and edging the lens molding body 102 with a grinding wheel to form the side surface 124 and the mounting surface 142 .

It can be understood that the core edging refers to the formation of the circular mesa side surface 124 of the optical portion 12 and the mounting surface 142 of the non-optical portion 14 by grinding the lens molding body 102 . The central axis of the circular mesa and the central axis of the mounting surface 142 of the non-optical portion 14 both coincide with the optical axis A of the lens 10 . In the coring and edging process, the lens molded body 102 is sandwiched between two clamps (not shown) that are coaxially opposed to each other, and the lens molded body 102 is slid by pressing the two clamps against each other and rotating at high speed. Centering is performed to a predetermined position. Then, while the lens molding body 102 is held between the two clamps, the lens molding body 102 is rotated, and the rotating grinding wheel (not shown) is brought into contact with the invalid portion 104 of the lens molding body 102, and the grinding process is as shown in the figure. 1 shows the shape of the lens 10. In the grinding process, the lens molding body 102 may be ground by moving the grinding wheel, or the lens molding body 102 may be ground by moving the lens molding body 102 in contact with the grinding wheel.

In the manufacturing method of the lens 10 of the present application, the glass lens 10 is manufactured through the molding and core edging process, which can reduce the occurrence of eccentricity of the object-side surface 122 and the image-side surface of the lens 10 and ensure the imaging effect of the lens 10 .

In some embodiments, the included angle α formed by the mounting surface 142 and the side surface 124 is greater than 90 degrees and less than 125 degrees.

It can be understood that since the optical portion 12 of the lens 10 must ensure a certain radial size, the angle α formed by the mounting surface 142 and the side surface 124 is greater than 90 degrees and less than 125 degrees, so that the radial size of the lens 10 will not be too large. The side surface 124 of the optical portion 12 is a circular mesa, and the mounting surface 142 of the non-optical portion 14 is a flat surface. In the present application, the mounting surface 142 is perpendicular to the optical axis A of the lens 10, and the circular mesa intersects the mounting surface 142 to form an included angle α, which can be any degree between 90 degrees and 125 degrees, depending on the degree of the circular mesa surface. The inclination of the generatrix relative to the optical axis A of the lens 10 .

Referring to FIG. 3 , the lens 10 according to the embodiment of the present application includes an optical portion 12 and a non-optical portion 14 extending from the periphery of the optical portion 12 . Optical portion 12 includes object-side surface 122 and side surfaces 124 that connect object-side surface 122 . The side surface 124 is a circular mesa. The non-optical portion 14 includes a mounting surface 142 connected to the side surface 124 .

In the lens 10 of the embodiment of the present application, when the lens 10 is installed in the lens barrel, the lens barrel can surround the circular mesa surface of the optical portion 12, and the mounting surface 142 of the non-optical portion 14 can abut the lens barrel. Therefore, the radial dimension of the lens barrel can be reduced, thereby reducing the size of the lens.

It can be understood that the radial dimension of the optical portion 12 of the lens 10 is smaller than the radial dimension of the lens 10 . The lens 10 is arranged in the lens barrel, and the lens barrel can surround the optical part 12 instead of the entire lens 10, so that the radial dimension of the lens barrel can be smaller than that of the lens 10, thereby reducing the size of the lens. For example, by arranging the lens 10 on the object side of the lens barrel, the size of the object side of the lens can be reduced.

It should be noted that the circular mesa can be understood as a curved surface in which the top portion of the conical surface is truncated. The extension line of the generatrix of the circular mesa crosses the optical axis A of the lens 10 .

In some embodiments, the included angle α formed by the mounting surface 142 and the side surface 124 is greater than 90 degrees and less than 125 degrees.

It can be understood that since the optical portion 12 of the lens 10 must ensure a certain radial size, the angle α formed by the mounting surface 142 and the side surface 124 is greater than 90 degrees and less than 125 degrees, so that the radial size of the lens 10 will not be too large. The side surface 124 of the optical portion 12 is a circular mesa, and the mounting surface 142 of the non-optical portion 14 is a flat surface. In the present application, the mounting surface 142 is perpendicular to the optical axis A of the lens 10, and the circular mesa intersects the mounting surface 142 to form an included angle α, which can be any degree between 90 degrees and 125 degrees, depending on the degree of the circular mesa surface. The inclination of the generatrix relative to the optical axis A of the lens 10 .

In certain embodiments, the central thickness of the optic 12 is at least 1 mm.

It can be understood that the central axis of the optical portion 12 coincides with the optical axis A of the lens 10 . In the present application, the overall thickness of the optical portion 12 of the lens 10 is greater than the thickness of the optical portion 12 of the conventional lens 10 . The central thickness of the optical portion 12 of the lens 10 is large, so that the optical portion 12 can form a side surface 124 connected with the object-side surface 122 , so that the lens barrel can surround the side surface 124 , thereby surrounding the optical portion 12 .

In some embodiments, the lens 10 is a plastic lens, and the lens 10 is formed by injection molding.

It can be understood that, in this embodiment, the lens 10 can be made of polymethylmethacrylate (Polymethylmethacrylate, PMMA) or polycarbonate (Polycarbonate, PC). Due to the polymethyl methacrylate material and polycarbonate material, it is easy to deform when cutting. Therefore, the lens 10 is formed by injection molding, which can avoid forming the lens 10 by cutting out part of the material. In another embodiment, the lens 10 may be a glass lens formed by a molding and core edging process.

Referring to FIG. 4 and FIG. 5 , the lens 100 of the embodiment of the present application includes a lens barrel 20 and the lens 10 of the above-mentioned embodiment. The lens barrel 20 includes a barrel body 22 and a light shielding portion 24 connected to the barrel body 22 . The light shielding portion 24 extends toward the object side. The lens 10 is disposed in the lens barrel 20 , and the light shielding portion 24 surrounds the side surface 124 .

In the lens 100 according to the embodiment of the present application, the lens 10 is provided in the lens barrel 20 , and the light shielding portion 24 surrounds the circular mesa surface of the optical portion 12 . Therefore, the radial dimension of the object-side end of the lens barrel 20 may be smaller than the radial dimension of the lens 10 , so that the object-side end of the lens 100 may be reduced in size.

It can be understood that the radial dimension of the optical portion 12 of the lens 10 is smaller than the radial dimension of the lens 10 . The light-shielding portion 24 extending toward the object side of the lens barrel 20 surrounds the optical portion 12 instead of the entire lens 10 , so that the radial dimension R of the light-shielding portion 24 is smaller than the radial dimension R of the lens 10 , that is, the radial dimension of the object-side end of the lens barrel 20 smaller than the radial dimension of the lens 10 . Therefore, compared with the conventional lens 100, the lens 100 of the present application can reduce the size of the object side end. When the lens 100 of the present application is applied to a front camera module of an electronic device, the opening of the screen of the electronic device can be reduced while ensuring the FOV of the lens 100 and the shooting effect, thereby increasing the screen ratio.

It should be noted that, in the present application, the number of lenses 10 is one, and one, two or more than two lenses 30 may also be arranged in the lens barrel 20 . In the illustrated embodiment, the number of lenses 30 is three. It should be noted that the radial dimension R of the light shielding portion 24 refers to the outer diameter dimension of the light shielding portion 24 and includes the wall thickness T of the lens barrel 20 .

In some embodiments, the light shielding portion 24 includes an extension portion 242 and a protrusion 244 formed on the extension portion 242 . The extension portion 242 is connected to the barrel body 22 and surrounds the side surface 124 , and the protrusion 244 is protruded from the periphery of the object side surface 122 .

It can be understood that the extension portion 242 is annular and surrounds the side surface 124 of the optical portion 12 . The protrusions 244 formed on the extension portion 242 may be annular protrusions, or may be a plurality of protrusions surrounding and spaced from each other. Preferably, the protrusions 244 are annular protrusions. The annular protrusion is protruded on the periphery of the object-side surface 122 , and the annular protrusion can act as a diaphragm of the lens 100 to limit the light beam.

In certain embodiments, the cartridge body 22 includes a radially inwardly extending step 222 . The light shielding portion 24 is connected to the step 222 , and the mounting surface 142 abuts against the step 222 .

It can be understood that the mounting surface 142 of the non-optical portion 14 abuts against the step 222 , and the step 222 can support the non-optical portion 14 of the lens 10 . In this way, the lens 10 can be prevented from falling out of the lens barrel 20 when the lens 10 is put into the lens barrel 20 .

In some embodiments, the object-side surface 122 is a convex surface, and the end surface of the light shielding portion 24 is flush with the highest point of the convex surface.

In this way, the light shielding portion 24 can protect the optical portion 12 of the lens 10 and prevent the object-side surface 122 of the optical portion 12 from being easily scratched or contaminated. In the embodiments of FIGS. 4 and 5 , the optical axis B of the lens 100 passes through the highest point of the object-side surface 122 of the optic 12 .

Referring to FIG. 5 , in some embodiments, the radial dimension R of the light shielding portion 24 ranges from 2.0 mm to 2.2 mm.

In this way, the radial dimension R of the light shielding portion 24 is small, so that the object side end dimension of the lens 100 is small. In the present embodiment, the radial dimension R of the light shielding portion 24 refers to the smallest radial dimension of the light shielding portion 24 . The radial dimension R of the light shielding portion 24 may be 2.0 mm, 2.2 mm, or any dimension between 2.0 mm and 2.2 mm. In the illustrated embodiment, the radial dimension R of the light shielding portion 24 is 2.1 mm.

In some embodiments, the lens barrel 20 is made of plastic material, and the wall thickness T of the lens barrel 20 is at least 0.25 mm.

It can be understood that the lens barrel 20 can be formed by using a plastic material (such as a black plastic material L-1225Y) by baking and hot-melting and then injection molding. Due to the low strength of the plastic material, in order to ensure the stability of the lens barrel 20, the minimum wall thickness T of the lens barrel 20 is 0.25 mm. In other embodiments, the lens barrel 20 may be made of metal material. Due to the higher strength of the metal material, the wall thickness T of the lens barrel 20 can be made thinner.

In some embodiments, the FOV of the lens 100 ranges from 79 degrees to 81 degrees.

It can be understood that, the larger the field of view angle FOV, the larger the field of view of the lens 100 . The field of view angle FOV can be 79 degrees, 81 degrees, or any degree between 79 degrees and 81 degrees. In the illustrated embodiment, the field of view FOV is 80.2 degrees.

Referring to FIG. 5 , the lens 100 further includes a light shielding sheet 40 . The light shielding sheet 40 is annular and is arranged between any two adjacent lenses. The light shielding sheet 40 is disposed between the non-optical parts of two adjacent lenses. In this way, the incident light can only pass through the optical part of the lens to prevent stray light from affecting the imaging quality.

Further, the lens 100 includes a spacer ring (not shown). The spacer ring is arranged between any two adjacent lenses. In this way, the space between two adjacent lenses can be set as required by using the spacer ring.

Referring to FIG. 6 and FIG. 7 , the lens 100 of the embodiment of the present application includes a lens barrel 20 and the lens 10 of the above-mentioned embodiment. The lens barrel 20 includes a first barrel 21 and a second barrel 23 arranged from the object side to the image side of the lens 100 . The first cylindrical body 21 communicates with the second cylindrical body 23 . The first cylindrical body 21 includes a light shielding portion 212 extending toward the object side. The lens 10 is disposed in the first cylindrical body 21 , and the light shielding portion 212 surrounds the side surface 124 .

In the lens 100 according to the embodiment of the present application, the lens 10 is disposed in the lens barrel 20 , and the light shielding portion 212 surrounds the circular mesa surface of the optical portion 12 . Therefore, the radial dimension of the object-side end of the lens barrel 20 may be smaller than the radial dimension of the lens 10 , so that the object-side end of the lens 100 may be reduced in size.

It can be understood that the radial dimension of the optical portion 12 of the lens 10 is smaller than the radial dimension of the lens 10 . The light-shielding portion 212 of the first barrel 21 extending toward the object side surrounds the optical portion 12 instead of the entire lens 10 , so that the radial dimension R of the light-shielding portion 212 is smaller than the radial dimension of the lens 10 , that is, the diameter of the object-side end of the lens barrel 20 . The radial dimension is smaller than the radial dimension of the lens 10 . Therefore, compared with the conventional lens 100, the lens 100 of the present application can reduce the size of the object side end. When the lens 100 of the present application is applied to a front camera module of an electronic device, the opening of the screen of the electronic device can be reduced while ensuring the FOV of the lens 100 and the shooting effect, thereby increasing the screen ratio.

It should be noted that, in the present application, the number of lenses 10 is one, and one, two or more than two lenses 30 may also be arranged in the lens barrel 20 . In the illustrated embodiment, the number of lenses 30 is three.

In some embodiments, the light shielding portion 212 includes an extension portion 2122 and a protrusion 2124 formed on the extension portion 2122 . The extension portion 2122 surrounds the side surface 124 , and the protrusion 2124 is protruded from the periphery of the object-side surface 122 .

It can be understood that the extension portion 2122 is annular and surrounds the side surface 124 of the optical portion 12 . The protrusions 2124 formed on the extension portion 2122 may be annular protrusions, or may be a plurality of protrusions enclosing an annular shape and spaced apart from each other. Preferably, the protrusions 2124 are annular protrusions. The annular protrusion is protruded on the periphery of the object-side surface 122 , and the annular protrusion can act as a diaphragm of the lens 100 to limit the light beam.

In some embodiments, the first cylindrical body 21 includes a step 214 extending radially outward from an axial end of the light shielding portion 212 . The step 214 is connected to the second cylindrical body 23 , and the mounting surface 142 abuts against the step 214 .

It can be understood that the mounting surface 142 of the non-optical portion 14 abuts against the step 214 , and the step 214 can support the non-optical portion 14 of the lens 10 . In this way, the lens 10 can be prevented from falling out of the lens barrel 20 when the lens 10 is put into the lens barrel 20 .

In some embodiments, the wall thickness T1 of the first cylindrical body 21 is smaller than the wall thickness T2 of the second cylindrical body 23 .

It can be understood that the wall thickness T1 of the first cylindrical body 21 is not equal everywhere, and the wall thickness T2 of the second cylindrical body 23 is not equal everywhere. The fact that the wall thickness T1 of the first cylindrical body 21 is smaller than the wall thickness T2 of the second cylindrical body 23 means that the maximum wall thickness T1 of the first cylindrical body 21 is smaller than the minimum wall thickness T2 of the second cylindrical body 23 . The wall thickness T1 of the first cylindrical body 21 is relatively thin, so that the radial dimension of the first cylindrical body 21 is relatively small, and therefore, the size of the object side end of the lens 100 can be further reduced.

In some embodiments, the wall thickness T1 of the first cylindrical body 21 is at least 0.1 mm, and the wall thickness T2 of the second cylindrical body 23 is at least 0.25 mm.

It can be understood that the fact that the wall thickness T1 of the first cylinder 21 is at least 0.1 mm means that the minimum wall thickness T1 of the first cylinder 21 is 0.1 mm, and that the wall thickness T2 of the second cylinder 23 is at least 0.25 mm means that the first cylinder 21 has a minimum wall thickness T1 of 0.1 mm. The maximum wall thickness T2 of the two cylinders 23 is 0.25 mm.

In certain embodiments, the strength of the material of the first barrel 21 is greater than the strength of the material of the second barrel 23 .

It can be understood that, since the wall thickness T1 of the first cylindrical body 21 is smaller than the wall thickness T1 of the second cylindrical body 23, in order to ensure the structural stability of the lens barrel 20, the strength of the material used in the first cylindrical body 21 is greater than that of the second cylindrical body 23 Strength of materials used. Specifically, the first cylinder 21 is made of metal material, and the second cylinder 23 is made of plastic material. For example, the first cylinder 21 can be made of stainless steel, copper, copper alloy and other materials, and the second cylinder 23 can be made of black plastic material L-1225Y.

In some embodiments, the connection method of the first barrel 21 and the second barrel 23 includes dispensing, heat riveting and injection molding.

In this way, the first cylinder body 21 and the second cylinder body 23 are connected together by means of dispensing, heat riveting or injection molding. Specifically, the formed first cylinder 21 and the second cylinder 23 may be connected by glue dispensing or hot riveting, or injection molding may be performed on the formed first cylinder 21 to form a second cylinder connected to the first cylinder 21 . Cylinder 23.

In some embodiments, the object-side surface 122 is a convex surface, and the end surface of the light shielding portion 212 is flush with the highest point of the convex surface.

In this way, the light shielding portion 212 can protect the optical portion 12 of the lens 10 and prevent the object-side surface 122 of the optical portion 12 from being easily scratched or contaminated. In the embodiments of FIGS. 6 and 7 , the optical axis B of the lens 100 passes through the highest point of the object-side surface 122 of the optic 12 .

In some embodiments, the radial dimension R of the light shielding portion 212 ranges from 1.7 mm to 1.9 mm.

In this way, the radial dimension R of the light shielding portion 212 is small, so that the object side end dimension of the lens 100 is small. In the present embodiment, the radial dimension R of the light shielding portion 212 refers to the smallest radial dimension of the light shielding portion 212 . The radial dimension R of the light shielding portion 212 may be 1.7 mm, 1.9 mm, or any dimension between 1.7 mm and 1.9 mm. In the illustrated embodiment, the radial dimension R of the light shielding portion 212 is 1.8 mm. It should be noted that the radial dimension R of the light shielding portion 212 refers to the outer diameter dimension of the light shielding portion 212 and includes the wall thickness T1 of the first cylindrical body 21 .

In some embodiments, the FOV of the lens 100 ranges from 79 degrees to 81 degrees.

It can be understood that, the larger the field of view angle FOV, the larger the field of view of the lens 100 . The field of view angle FOV can be 79 degrees, 81 degrees, or any degree between 79 degrees and 81 degrees. In the illustrated embodiment, the field of view FOV is 80.2 degrees.

Referring to FIG. 7 , the lens 100 further includes a light shielding sheet 40 . The light shielding sheet 40 is annular and is arranged between any two adjacent lenses. The light shielding sheet 40 is disposed between the non-optical parts of two adjacent lenses. In this way, the incident light can only pass through the optical part of the lens to prevent stray light from affecting the imaging quality.

Further, the lens 100 includes a spacer ring (not shown). The spacer ring is arranged between any two adjacent lenses. In this way, the space between two adjacent lenses can be set as required by using the spacer ring.

Referring to FIG. 8 and FIG. 9 , the camera module 200 of the embodiment of the present application includes a substrate 210 , the lens 100 and the image sensor 220 described in the above-mentioned embodiments. The lens 100 is disposed on the substrate 210 . The image sensor 220 is disposed on the substrate 210 and corresponds to the lens 10 .

In the camera module 200 of the embodiment of the present application, the lens 10 is disposed in the lens barrel 20 , and the light shielding portion 24 / 212 surrounds the circular mesa of the optical portion 12 . Therefore, the radial dimension of the object-side end of the lens barrel 20 may be smaller than the radial dimension of the lens 10 , so that the object-side end of the lens 100 may be reduced in size.

It can be understood that the substrate 210 may be a printed circuit board, a flexible circuit board or a rigid-flex board. The image-side end of the lens barrel 20 is provided on the substrate 210 . The correspondence between the image sensor 220 and the lens 10 means that the optical axis B of the lens 100 passes through the center of the image sensor 220 . The lens barrel 20 may be directly mounted on the substrate 210 . Alternatively, the camera module 200 further includes an annular lens mount (not shown), the lens mount is mounted on the base plate 210 , and the lens barrel 20 is mounted on the end of the lens mount away from the base plate 210 to be mounted on the base plate 210 through the lens mount. When the lens barrel 20 is directly mounted on the substrate 210 , the image sensor 220 can be accommodated in the lens barrel 20 . When the lens barrel 20 is mounted on the base plate 210 through the lens holder, the image sensor 220 can be accommodated in the lens holder.

Further, the camera module 200 further includes a filter 230 disposed between the lens 100 and the image sensor 220 . The filter 230 may be an infrared cut filter to block infrared light.

Referring to FIGS. 10-16 , the electronic device 300 of the embodiment of the present application includes a casing 310 , a display module 320 disposed on the casing 310 , and the camera module 200 of the above-mentioned embodiments. The display module 320 is provided with a light-passing hole 330 . The lens 10 of the camera module 200 is disposed corresponding to the light-transmitting hole 330 .

In the electronic device 300 of the embodiment of the present application, the lens 10 is disposed in the lens barrel 20 , and the light shielding portion 24 / 212 surrounds the circular mesa of the optical portion 12 . Therefore, the radial dimension of the object-side end of the lens barrel 20 may be smaller than the radial dimension of the lens 10 , so that the object-side end of the lens 100 may be reduced in size.

It can be understood that the display module 320 can be an organic light-emitting diode (Organic Light-Emitting Diode, OLED) display module, including a display panel 3202 and a cover plate 3204 . The display module 320 can also be a liquid crystal display module (Liquid Crystal Display, LCD), including a backlight layer 3206 , a liquid crystal layer 3208 and a cover plate 3204 . In the embodiments shown in FIGS. 10 and 13 , the display module 320 is an organic light-emitting diode display module, the light-transmitting hole 330 penetrates the display panel 3202 , and the cover plate 3204 is disposed on one side of the display panel 3202 and blocks the light-transmitting hole 330 . 11 and 14, the display module 320 is a liquid crystal display module, the light-transmitting hole 330 can pass through the backlight layer 3206 and the liquid crystal layer 3208, and the cover plate 3204 is arranged on one side of the liquid crystal layer 3208 and blocks the light through Aperture 330. In the embodiments shown in FIGS. 12 and 15 , the display module 320 is a liquid crystal display module, the light-transmitting hole 330 can only pass through the backlight layer 3206 , and the liquid crystal layer 3208 and the cover plate 3204 are stacked on the backlight layer 3206 and block the light-transmitting hole. 330.

The light-shielding portion 14 of the lens barrel 20 is at least partially located in the light-passing hole 330 , and the central axis of the light-passing hole 330 coincides with the optical axis B of the lens 100 . The cross section of the light-passing hole 330 is circular. The radial dimension of the light-passing hole 330 is larger than the radial dimension R of the light shielding portion 14 . In other embodiments, the cross-section of the light-passing hole 330 may also be rectangular, oval, or polygonal. The cross-sectional shape of the light-passing hole 330 corresponds to the cross-sectional shape of the light shielding portion 14 . For example, when the cross-sectional shape of the light shielding portion 14 is circular, the cross-sectional shape of the light passing hole 330 is circular.

It should be noted that the electronic device 300 may be a mobile phone, a tablet computer, a notebook computer, a wearable device, or the like.

Referring to FIG. 10 , FIG. 11 , FIG. 13 and FIG. 14 , in some embodiments, the electronic device 300 further includes a light shielding member 340 . The light-shielding member 340 is disposed on the inner surface of the light-passing hole 330 to prevent the light emitted by the display module 320 from entering the light-passing hole 330 due to the display screen or the like.

It can be understood that in the embodiments of FIGS. 10 and 13 , the light-passing holes 330 pass through the OLED display panel 3202 . In the embodiments of FIGS. 11 and 14 , the light-transmitting holes 330 pass through the backlight layer 3206 and the liquid crystal layer 3208 . In the embodiments shown in FIGS. 10 , 11 , 13 and 14 , glare or light leakage may occur, that is, the light emitted by the display module 320 will enter the light-transmitting hole 330 and affect imaging. In order to prevent the light emitted by the display module 320 from entering the light-transmitting hole 330 and projecting to the image sensor 220 and improving the imaging quality of the image sensor 220 , the electronic device 300 of this embodiment is provided with a light shielding member 340 on the inner surface of the light-transmitting hole 330 . The light shielding member 340 may be black ink or black glue. When the light-shielding member 340 is made of black glue, the light-shielding member 340 may be formed on the inner surface of the light-transmitting hole 330 by dispensing glue. When the light blocking member 340 is black ink, the light blocking member 340 may be formed by black ink on the inner surface of the light-transmitting hole 330 .

In some embodiments, the electronic device 300 may also include a seal 350 . The sealing member 350 is disposed between the lens barrel 20 and the display module 320 , and the sealing member 350 surrounds the light-passing hole 330 . The sealing member 350 is used to seal the gap between the lens barrel 20 and the display module 320 .

It can be understood that by arranging the sealing member 350 between the lens barrel 20 and the display module 320 , dust, water vapor, etc. outside the electronic device 300 can be prevented from entering the light-passing hole along the gap between the lens barrel 20 and the display module 320 . within 330. The inner diameter of the sealing member 350 is larger than the radial dimension of the light-passing hole 330 . The central axis of the sealing member 350 coincides with the optical axis B of the lens 100 . The seal 350 corresponds to the shape of the light shielding portion 14 of the lens barrel 20 . The sealing member 350 may have a circular ring shape, a rectangular ring shape, an elliptical ring shape, a polygonal ring shape, or the like. The sealing member 350 is a soft material, such as foam, silicone, and the like.

In the description of this specification, reference is made to the terms "some embodiments," "one embodiment," "some embodiments," "exemplary embodiments," "examples," "specific examples," or "some examples." Described means that a particular feature, structure, material, or characteristic described in connection with the described embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features delimited with "first", "second" may expressly or implicitly include at least one of said features. In the description of the present application, "plurality" means at least two, such as two, three, unless expressly and specifically defined otherwise.

Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limitations to the present application. Variations, modifications, substitutions, and alterations are made to the embodiments, and the scope of the present application is defined by the claims and their equivalents.

Claims (16)

1. a kind of manufacturing method of eyeglass characterized by comprising

One eyeglass formed body is provided；

The inactive portion of the eyeglass formed body is removed to obtain eyeglass, wherein the eyeglass includes optical section and from the light The non-optical division that the periphery of the department of the Chinese Academy of Sciences extends, the optical section includes the side of object side surface and the connection object side surface, described Non-optical division includes the mounting surface connecting with the side, and the side is round table surface.

2. the manufacturing method according to claim 1, which is characterized in that the material of the eyeglass formed body is glass and passes through In-molded technique obtains.

3. the manufacturing method according to claim 1, which is characterized in that the inactive portion is gone in such a way that core takes edging It removes.

4. manufacturing method according to claim 3, which is characterized in that the core takes the mode of edging to include:

It rotates the eyeglass formed body centered on optical axis, edging is carried out with shape to the eyeglass formed body using grinding grinding wheel At the side and the mounting surface.

5. the manufacturing method according to claim 1, which is characterized in that the mounting surface and the angle that the side is formed are big In 90 degree and less than 125 degree.

6. a kind of eyeglass characterized by comprising

Optical section, the optical section include object side surface and the side for connecting the object side surface, and the side is round table surface；And

From the non-optical division that the periphery of the optical section extends, the non-optical division includes the mounting surface connecting with the side.

7. eyeglass according to claim 6, which is characterized in that the mounting surface and the angle of side formation are greater than 90 It spends and less than 125 degree.

8. eyeglass according to claim 6, which is characterized in that the center thickness of the optical section is at least 1mm.

9. a kind of camera lens characterized by comprising

Lens barrel, the lens barrel include an ontology and the light shielding part that connect with the cylinder ontology, and the light shielding part extends to object side；And

The described in any item eyeglasses of claim 6-8, the eyeglass are arranged in the lens barrel, and the light shielding part surrounds the side Face.

10. camera lens according to claim 9, which is characterized in that the light shielding part includes extension and is formed in described prolong The protrusion of extending portion, the extension connect the cylinder ontology and surround the side, and the protrusion projection is in the object side surface Periphery.

11. camera lens according to claim 9, which is characterized in that the cylinder ontology includes radially inwardly extending step, The light shielding part connects the step, and the mounting surface is against the step.

12. a kind of camera lens characterized by comprising

Lens barrel, the lens barrel include from the first cylinder and the second cylinder of the lateral image side arrangement of the object of the camera lens described first Cylinder is connected to second cylinder, and first cylinder includes the light shielding part extended to object side；And

The described in any item eyeglasses of claim 6-8, the eyeglass are arranged in first cylinder, and the light shielding part surrounds institute State side.

13. camera lens according to claim 12, which is characterized in that the light shielding part includes extension and is formed in described prolong The protrusion of extending portion, the extension surround the side, periphery of the protrusion projection in the object side surface.

14. camera lens according to claim 12, which is characterized in that first cylinder includes axial from the light shielding part The step that one end extends radially outward, the step connect second cylinder, and the mounting surface is against the step.

15. a kind of camera mould group characterized by comprising

Substrate；

The described in any item camera lenses of claim 9 to 14, the camera lens setting is on the substrate；And

Image sensor, the image sensor setting are on the substrate and corresponding with the eyeglass.

16. a kind of electronic device characterized by comprising

Shell；

The display module of the shell is set, and the display module offers light hole；And

Camera mould group described in claim 15, eyeglass and the light hole of the camera mould group are correspondingly arranged.