TWI644138B - Lens with integrated focusing mechanism, assembling method and camera module thereof - Google Patents

Abstract

The invention relates to a lens integrated with a focusing mechanism, an assembly method thereof, and a camera module. The lens module includes at least one optical lens, a focusing mechanism, and a bearing structure. Each of the optical lenses is along the bearing structure. The height direction is installed in an accommodating cavity of the bearing structure, and the bearing structure is connected to the inside of the focusing mechanism as a carrier of the focusing mechanism, wherein the bearing structure is energized with the power of the focusing mechanism. The movement drives each of the optical lenses to move, which is further suitable for focusing. In the present invention, the carrier structure is used instead of the carrier and the lens barrel of the traditional focusing mechanism, which simplifies the overall assembly process, improves the module yield and Quality, reducing manufacturing costs.

Description

Lens with integrated focusing mechanism, assembling method and camera module thereof

The invention relates to a lens with integrated focusing mechanism, an assembling method and a camera module thereof, and particularly relates to a lens with integrated focusing mechanism, an assembling method and a camera module thereof.

With the increasingly fierce competition in the camera module market, falling camera module manufacturing costs, increasing production efficiency, and improving imaging quality have become the goals pursued by camera module manufacturers.

Generally, the focus camera module is composed of important components such as the lens, focusing mechanism, and photosensitive chip. The manufacture of the focus camera module is usually an assembly between these components. The assembly of parts, after the assembly is completed, the lens product is assembled with the focusing mechanism, and then with the photosensitive device to complete the assembly of the camera module. This assembly method has the following problems: first, the assembly process is relatively repetitive and cumbersome, resulting in low production efficiency of the camera module; second, there is an assembly tolerance between the lens and the focusing mechanism during the assembly process, plus The assembly tolerance of the lens and focusing mechanism itself makes the tolerance chain too long and affects the quality of the module. Third, the size of the module produced in this way is large in the length and width direction, which is not conducive to the thinning and thinning of the camera module. Development; Fourth, the lens and the focusing mechanism are easy to enter the dust during the assembly process, and the phenomenon of bad stains appears. This is because the connection between the lens and the focusing mechanism is not so tight, there will be some small gaps between the two. This makes it difficult for dust to enter between the lens and the focusing mechanism. If the dust is not removed for a long time, the lens, focusing mechanism and the entire camera module will be contaminated, affecting the imaging quality and service life of the camera module, and eventually the quality of the entire product with the camera module.

Therefore, in the manufacturing process of the camera module, how to effectively solve the above problems is the key to improving the manufacturing yield and imaging quality of the camera module.

An object of the present invention is to provide a lens with integrated focusing mechanism, assembling method thereof, and camera module, so as to solve the existing lens and module assembly tolerance chain existing in the prior art is too long, the production efficiency is low, the manufacturing cost is high, and the module Large size and poor imaging quality of the module.

An object of the present invention is to provide a lens integrating a focusing mechanism, an assembling method thereof, and a camera module. The carrier of the focusing mechanism and the lens barrel of the lens are taken as a whole, and the assembling process between the lens barrel and the carrier of the focusing mechanism is reduced. , Which further simplifies the overall assembly process of the camera module, which is conducive to improving production efficiency and imaging quality.

An object of the present invention is to provide a lens with an integrated focusing mechanism, an assembling method thereof, and a camera module. The optical lens is directly assembled in the carrier of the focusing mechanism, and the traditional optical lens and lens barrel assembly, the lens barrel and the focus are changed. The assembly method of the carrier assembly of the mechanism shortens the assembly tolerance chain, which is beneficial to improving the yield of module manufacturing and reducing the assembly cost of the module.

An object of the present invention is to provide a lens integrating a focusing mechanism, an assembling method thereof, and a camera module. A carrier structure is used to replace a carrier of a conventional focusing mechanism and a lens barrel of the lens, so that the size of the lens and the module is smaller and advantageous. The camera module is moving towards thinner and lighter.

An object of the present invention is to provide a lens with integrated focusing mechanism and assembly method thereof. The method and camera module design the carrier of the focusing mechanism into the structural shape of the lens barrel, which is directly used to carry the optical lens and drive the lens to move, so that the focusing effect is better.

An object of the present invention is to provide a lens with integrated focusing mechanism, an assembly method thereof, and a camera module. The photosensitive device of the camera module is suitable for selecting a COB process or a wafer flip-chip process for manufacturing. The manufacturing of the module is more convenient. The photosensitive device adopting the flip chip process makes the camera module smaller in size and more compact in structure.

An object of the present invention is to provide a lens with integrated focusing mechanism, assembling method and camera module thereof, which omits the assembly between the lens barrel and the focusing mechanism carrier, and can prevent the dust appearing in the traditional assembly method from entering between the two. This phenomenon helps to ensure the imaging quality of the camera module.

An object of the present invention is to provide a lens with integrated focusing mechanism, an assembling method thereof, and a camera module. Fixing the lens with integrated focusing mechanism through corresponding fixtures is beneficial to the installation of optical lenses.

An object of the present invention is to provide a lens with an integrated focusing mechanism, an assembling method thereof, and a camera module, which are assembled using a fixture. The assembling method is simple, feasible, convenient to operate, time-saving, and suitable for promotion and application.

An object of the present invention is to provide a lens with integrated focusing mechanism, assembling method and camera module thereof, in which a fixture used for auxiliary assembly is matched with the lens module to fix the lens module, facilitate the installation of optical lenses, and prevent misalignment. Shift, tilt, etc. to ensure the assembly accuracy of the lens module.

In order to meet the above objectives of the present invention and other objectives and advantages of the present invention, the present invention provides a lens module including: at least one optical lens; a focusing mechanism; and a bearing structure, each of the optical lenses is along the The height direction of the load-bearing structural member is installed in a receiving cavity provided by the load-bearing structural member. Wherein, the bearing structure is connected to the inside of the focusing mechanism as a carrier of the focusing mechanism, wherein the bearing structure moves with the energization of the focusing mechanism, which drives each of the optical lenses to move, and is further suitable for focusing.

According to an embodiment of the present invention, the inner wall of the load-bearing structural member extends toward the receiving cavity to form at least one fixing portion, and the fixing portion is used to place each of the optical lenses.

According to an embodiment of the present invention, the focusing mechanism is suitable for selecting a voice coil motor, a piezoelectric ceramic motor, or a liquid crystal motor.

According to an embodiment of the present invention, a top end surface of the load-bearing structural member is lower than a top end surface of the focusing mechanism.

According to an embodiment of the present invention, a top end surface of the bearing structure is higher than a top end surface of the focusing mechanism.

According to another aspect of the present invention, the present invention also provides a camera module including: a photosensitive device, the photosensitive device includes a photosensitive chip; and a lens module, the lens module is mounted on the photosensitive chip On the light sensing path, the lens module includes at least one optical lens, a focusing mechanism, and a supporting structure, and each of the optical lenses is mounted on a bearing of the supporting structure along a height direction of the supporting structure. In the accommodating cavity, the bearing structure is connected to the inside of the focusing mechanism as a carrier of the focusing mechanism, and the bearing structure moves with the energization of the focusing mechanism, which drives each optical lens to move, and further Suitable for focusing.

According to an embodiment of the present invention, the inner wall of the load-bearing structural member extends toward the receiving cavity to form at least one fixing portion, and the fixing portion is suitable for placing each of the optical lenses.

According to an embodiment of the present invention, the focusing mechanism is suitable for selecting a voice coil motor, a piezoelectric ceramic motor, or a liquid crystal motor.

According to an embodiment of the present invention, the photosensitive device further includes a filter, a lens holder, and a circuit board, wherein the filter is connected to an inner wall of the lens holder and located above the photosensitive wafer, The photosensitive wafer is mounted above the circuit board, and the circuit board is installed at the bottom of the lens holder, so that the photosensitive wafer is located inside the lens holder and is held in a position with the inner wall of the lens holder. spacing.

According to an embodiment of the present invention, the photosensitive device further includes a filter, a lens holder, and a circuit board, wherein the filter and the photosensitive wafer are both installed inside the lens holder and connected to the lens holder. The inner wall of the lens holder, wherein the filter is disposed above the photosensitive wafer, and the circuit board is installed at the bottom of the lens holder.

The focusing mechanism and the supporting structure are assembled on the top of the lens mount.

According to another aspect of the present invention, the present invention also provides a method for assembling a lens module, including the following steps: (A) placing a focusing mechanism and a supporting structure on a jig; (B) adjusting the rule (C) sequentially placing at least one optical lens in the supporting structure and fixing it; and (D) completing a lens mold Set of assembly.

According to an embodiment of the present invention, in the step (A), the jig has a first bearing portion and a second bearing portion, respectively, the shape of the bearing structure and the focusing mechanism, The sizes are matched and suitable for carrying the bearing structure and the focusing mechanism respectively.

According to an embodiment of the present invention, in the step (B), the jig has at least two air passages, both of which are connected to the top and bottom of the jig, wherein the air passages are respectively provided on the first bearing. The abutting portion and the second abutting portion are adapted to fix the bearing structure and the focusing mechanism through the air passage using a suction nozzle or a vacuum device.

According to an embodiment of the present invention, in the step (C), each of the optical lenses is assembled monolithically into the carrying structure in sequence, or a part of the optical lenses in each of the optical lenses is fitted into each other. After being integrated, the optical lens is assembled into the supporting structure in sequence with the optical lens that is not fitted.

According to an embodiment of the present invention, in the step (C), each of the optical lenses is fixed with a thermosetting adhesive.

According to an embodiment of the present invention, in the step (A), the bearing structure is installed inside the focusing mechanism as a carrier of the focusing mechanism, and moves as the focusing mechanism is energized.

According to an embodiment of the present invention, in the step (A), the focusing mechanism is connected with the supporting structure in advance as a whole or the supporting structure is pre-assembled inside the focusing mechanism, and further in the The connection between the two is performed in step (D).

According to an embodiment of the present invention, in the above method, the inner wall of the load-bearing structural member extends toward the receiving cavity to form a fixed portion equal to the number of the optical lenses to fix each of the optical lenses.

According to an embodiment of the present invention, in the above method, a top end surface of the load-bearing structural member is higher than a top end surface of the focusing mechanism, and a top end surface of a first bearing portion of the jig is higher than the second bearing surface. A top end surface of the abutment portion is formed with a groove therebetween, which is suitable for receiving the supporting structure Out of the focusing mechanism, wherein the depth of the groove is equal to the height difference between the focusing mechanism and the bearing structure.

According to an embodiment of the present invention, in the above method, a top end surface of the load-bearing structural member is lower than a top end surface of the focusing mechanism, and a top end surface of a first abutment portion of the jig is lower than the second end surface. A top surface of the abutment portion forms a boss therebetween, wherein a height of the boss is equal to a height difference between the focusing mechanism and the bearing structure.

10, 10A‧‧‧ lens module

11, 11A‧‧‧Optical lens

111‧‧‧The first optical lens

112‧‧‧Second Optical Lens

113‧‧‧third optical lens

114‧‧‧ fourth optical lens

12, 12A‧‧‧ Focusing mechanism

13, 13A‧‧‧bearing structure

131, 131A‧‧‧ Containment Chamber

132, 132A‧‧‧Fixed section

20, 20A‧‧‧ jig

21, 21A‧‧‧The first supporting department

22, 22A‧‧‧Second bearing section

23, 23A‧‧‧Air channel

30, 30B‧‧‧Photosensitive device

31, 31B‧‧‧ Filter

32, 32B‧‧‧Mirror mount

33, 33B‧‧‧Photosensitive chip

34, 34B‧‧‧Circuit board

1000‧‧‧ Assembly method

1001 ~ 1004‧‧‧‧step

FIG. 1 is a schematic cross-sectional view of a lens integrating a focusing mechanism according to a preferred embodiment of the present invention.

FIG. 2 is a schematic diagram of a first method of assembling a lens with integrated focusing mechanism according to the above-mentioned preferred embodiment of the present invention.

FIG. 3 is a modified implementation of the first method of assembling a lens with integrated focusing mechanism according to the above-mentioned preferred embodiment of the present invention.

4 and 5 are schematic diagrams of a second method for assembling a lens with integrated focusing mechanism according to the above-mentioned preferred embodiment of the present invention.

FIG. 6 is a schematic structural diagram of a jig used in an assembly process of a lens integrating a focusing mechanism according to the above-mentioned preferred embodiment of the present invention.

FIG. 7 is a modified implementation of a jig used in an assembly process of a lens integrating a focusing mechanism according to the above-mentioned preferred embodiment of the present invention.

FIG. 8 is a schematic cross-sectional view of a camera module including a lens assembly of a focusing mechanism according to the above preferred embodiment of the present invention.

FIG. 9 is a modified implementation of a camera module composed of a lens integrated with a focusing mechanism according to the above-mentioned preferred embodiment of the present invention.

FIG. 10 is a flowchart of a lens assembly method integrating a focusing mechanism according to the above-mentioned preferred embodiment of the present invention.

The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are merely examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

In a conventional adjustable focus camera module, the lens module usually includes a lens and a focusing mechanism, wherein the lens includes an optical lens and a lens barrel carrying the lens, and the focusing mechanism includes a carrier, which is connected to other parts of the focusing mechanism And the carrier is a moving part carrier, which has threads inside, and is matched with the lens through threads or other means, that is, the carrier is connected with the lens barrel, so that the lens can be fixed on the carrier and moved with the carrier, thereby achieving the purpose of focusing. .

In the present invention, by improving the carrier of the lens barrel and the focusing mechanism, the carrier of the lens barrel and the focusing mechanism is designed as a whole to reduce the assembly process, reduce the manufacturing cost, and improve the imaging quality.

FIG. 1 shows a lens module integrating a focusing mechanism according to a preferred embodiment of the present invention. As shown in FIG. 1, a lens module 10 includes at least one optical lens 11, a focusing mechanism 12, and a supporting structure 13, and each of the optical lenses 11 is mounted on the supporting structure 13 along the height direction of the supporting structure 13. The supporting structure 13 is fixed in a receiving cavity 131. The supporting structure 13 is installed in The inside of the focusing mechanism 12 serves as a carrier of the focusing mechanism 12 in the same mounting position as the carrier of the conventional focusing mechanism, and connects other parts of the focusing mechanism 12, wherein the supporting structure 13 can follow The focusing mechanism 12 is moved by being energized, and the optical lens 11 is directly moved during the movement, and then used to adjust the focus.

The optical lens 11 in this preferred embodiment is implemented as four pieces, which are a first optical lens 111, a second optical lens 112, a third optical lens 113, and a fourth optical lens 114, respectively.

It is worth mentioning that the carrying structure 13 has the function of the carrier of the lens barrel and the motor in the conventional lens module at the same time. In the present invention, the carrying structure 13 is used as the carrier of the lens barrel and the focusing mechanism. The supporting structure 13 can move inside the focusing mechanism 12 and can also support the optical lens 11. The supporting structure 13 can be made of opaque materials and can prevent external stray light from entering the lens mold from a non-incident hole. In group 10.

The carrying structure 13 can be implemented in the following three ways: (1) When the focusing mechanism 12 is designed, on the basis of satisfying its carrier function, the carrier is further made into a lens barrel function, which conforms to the mirror The size of the barrel can be used to carry the lens; (2) When the lens barrel is designed, it can function as a carrier of the focusing mechanism while carrying the lens, and then installed in the focusing mechanism as the carrier of the focusing mechanism; (3) When manufacturing, the lens barrel and the carrier of the focusing mechanism are used as an assembly.

In short, the above manufacturing method is merely an example, and those skilled in the art can understand that the manufacturing method of the carrier structure 13 can be implemented whether the lens barrel is used as the carrier of the focusing mechanism or the carrier of the focusing mechanism is used as the lens barrel. For other methods, it is only required that the supporting structure 13 has both the function of the lens barrel and the carrier of the focusing mechanism.

The focusing mechanism 12 is suitable to be implemented as a voice coil motor (VCM), a piezoelectric ceramic motor And LCD motors.

Furthermore, the supporting structure 13 has at least one fixing portion 132, wherein the fixing portion 132 is a boss formed by an inner wall of the supporting structure 13 extending in the direction of the receiving cavity 131, so that Each of the optical lenses 11 is placed.

The number of the fixing portions 132 is suitable to be equal to the number of the optical lenses 11. The preferred embodiment is implemented as four of the fixing portions 132. When the lens module 10 is inverted to mount each of the optical lenses At 11:00, each of the optical lenses 11 can be placed on a surface of the corresponding fixing portion 132, and then the optical lenses 11 are fixed. Through the fixing portion 132, each of the optical lenses 11 can be stably placed, and it is convenient to fix the optical lenses 11 to the supporting structure 13.

Referring to FIG. 2, FIG. 6, and FIG. 10, an assembly method of the lens module 10 and a jig 20 for assisting the assembly will be explained.

The jig 20 includes a first bearing portion 21 and a second bearing portion 22, and has at least two air passages 23. The second bearing portion 22 is provided on the periphery of the first bearing portion 21. The two are located on the top of the jig 20, and the air channel 23 connects the top and bottom of the jig 20 to facilitate adsorption, at least one of the air channels 23 is provided on the first bearing. Part 21, at least one of the air passages 23 is provided in the second bearing part 22 for fixing the supporting structure 13 and the focusing mechanism 12, respectively, in order to fix it more firmly, it is suitable for uniform setting A plurality of the air passages 23 are used to fix the supporting structure 13 and the focusing mechanism 12 from different angles. For example, four air passages 23 can be evenly disposed on the first bearing portion 21. The four air passages 23 are evenly disposed on the second bearing portion 22.

The first bearing portion 21 is implemented as a groove in the preferred embodiment, that is, there is a predetermined distance between a top end surface of the first bearing portion 21 and a top end surface of the second bearing portion 22. , So The top end surface of the first abutment portion 21 is lower than the top end surface of the second abutment portion 22. The shape and size of the first abutment portion 21 are matched with the shape and size of the load-bearing structure 13. During the assembly process, the first abutment portion 22 is used to load the load-bearing structure 13. The shape and size of the focusing mechanism 12 are matched, and are used to carry the focusing mechanism 12 during the assembly process. During the assembly process, the bearing structural member 13 and the focusing mechanism 12 are respectively inverted to the first A bearing portion 21 and the second bearing portion 22 are used to fix the load bearing structure through the air passage 23 provided at the first bearing portion 21 during the process of installing the optical lens 11. 13 and fix the focusing mechanism 12 through the air passage 23 provided at the second bearing portion 22.

Further, the shape of the jig 20 must match the shape of the lens module 10. In this preferred embodiment, the top end surface of the load bearing structure 13 is higher than the top end surface of the focusing mechanism 12. Therefore, the first bearing portion 21 is implemented as a groove to accommodate a portion of the supporting structure 13 that is higher than the focusing mechanism 12, and the depth of the groove is the bearing structure 13 and the focus. The height difference between the mechanisms 12.

It is worth mentioning that the supporting structure 13 and the focusing mechanism 12 can be fixed through the air passage 23 through a suction nozzle or other vacuum equipment.

Referring to FIG. 10, an assembling method 1000 for assembling the lens module 10 includes the following steps: Step (1001): Invert the focusing mechanism 12 and the supporting structure 13 on the jig 20; Step (1002) : Adjusting the jig 20 to fix the focusing mechanism 12 and the supporting structure 13 on the jig 20; step (1003): sequentially placing the optical lens 11 on the supporting structure 13 And step (1004): complete the assembly of the lens module 10.

It is worth mentioning that, in the step (1001), since the bearing structure 13 has been designed to have the dual functions of a lens barrel and a focusing mechanism carrier at the time of design, the focusing mechanism 12 The bearing structure 13 can be assembled in one of the following three ways: (a) The focusing mechanism 12 can be connected to the bearing structure 13 in advance, so that the bearing structure 13 has the focusing mechanism 12 The function of the carrier is that the two are inverted on the jig 20 as a whole, so that it further has the kinetic energy of the lens barrel; (b) the focusing mechanism 12 and the bearing structure 13 are inverted to match On the jig 20, and then assemble the two in the step (1004); (c) after fixing each of the optical lenses 11 inside the load-bearing structural member 13, the load-bearing structure After the lens 13 has the function of a lens barrel, it is assembled with each of the optical lenses 11 as a whole, and then the bearing structure 13 and the focusing mechanism 12 are assembled, so that it further has a carrier of the focusing mechanism 12. Features.

In the step (1002), by adjusting the jig 20 to cooperate with a suction nozzle or a vacuum device, at the bottom of the jig 20, the suction nozzle or the vacuum device faces the air channel 23 Pressure is applied to fix the focusing mechanism 12 and the supporting structure 13 through the air passage 23 to fix the focusing mechanism 12 and the supporting structure 13 to the jig, respectively. The second abutting portion 22 and the first abutting portion 21 of 20 prevent slippage, jitter, and offset during subsequent assembly processes, reduce assembly deviations, and ensure assembly accuracy.

In the step (1003), each of the optical lenses 11 is placed, for example, four pieces of the optical lenses 11 in this preferred embodiment. In the preferred embodiment, a single piece of the optical lenses is placed in a single shot. The method of 11 is to place the first optical lens 111, the second optical lens 112, and the first optical lens in order. The three optical lenses 113 and the fourth optical lens 114 are suitable for fixing each of the optical lenses 11 by thermosetting glue after being placed. You can choose to fix each optical lens after placing it, or you can put all of them afterwards. Fix it and choose according to the actual situation. Those skilled in the art can understand that the assembling method of each optical lens 11 can be selected according to the structure of the inner wall of the load-bearing structural member 13, and each of the optical lenses 11 can also be fixed by welding.

In addition, referring to FIG. 4 and FIG. 5, the present invention can also use the method shown in FIG. 4 and FIG. 5 to assemble the camera module 10. As shown in FIG. 4 and FIG. 5, before the assembly, a part of the optical lens 11 is fixed into a whole, and then the optical lens 11 is assembled with other unfitted optical lenses 11 in order and put into the bearing structure 13. To complete the assembly of the lens module 10. In this assembling method, the first optical lens 111, the second optical lens 112, and the third optical lens 113 are first fitted together, and then inserted into the receiving cavity 131 of the carrying structure 13 Then, the fourth optical lens 114 is placed, and each of the optical lenses 11 is fixed to complete the assembly of the lens module 10.

Those skilled in the art can understand that before the assembly, any of the optical lenses 11 can be fitted and then assembled in sequence. For example, the second optical lens 112 and the third optical lens 113 may be fitted together as a whole before assembling, and the first optical lens 111 and the fitting and assembling may be sequentially inserted during assembly. The second optical lens 112, the third optical lens 113, and the fourth optical lens 114 are then fixed by thermosetting glue. Four pieces of the optical lens 11 can also be fitted and inserted into the bearing structure as a whole. Piece 13.

In the step (1004), the suction nozzle or other vacuum equipment is removed, and the lens module 10 is removed from the jig 20 to complete the assembly of the lens module 10, wherein the lens module 10 is removed The air can be sprayed through the air passage 23, and the lens module 10 can be ejected by applying an opposite force to the lens module 10, and then can be taken out, or other methods can be adopted according to the actual situation. To take out the lens module 10.

Referring to FIG. 3 and FIG. 7, a modified implementation of the foregoing preferred embodiment is performed to deform a lens module and a jig. In this modified implementation, the fixture 20A is used to assist the assembly of the lens module 10A, wherein the fixture 20A matches the lens module 10A.

The lens module 10A includes a plurality of optical lenses 11A, a focusing mechanism 12A, and a bearing structure 13A. The bearing structure 13A serves as a carrier of the focusing mechanism 12A and has a receiving cavity 131A for receiving the lens. The optical lens 11A simultaneously functions as a carrier of a lens barrel and a focusing mechanism. The carrying structure 13A can move within the focusing mechanism 12A as the focusing mechanism 12A is energized, and then used to adjust focus.

Further, the carrying structure 13A has at least one fixing portion 132A, wherein the fixing portion 132A is a boss formed by an inner wall of the carrying structure 13A extending in a direction of the receiving cavity 131A, and is used for Each of the optical lenses 11A is placed. This preferred embodiment is implemented as four of the fixing portions 132A. When the lens module 10A is inverted to mount each of the optical lenses 11A, each of the optical lenses 11A can be placed on the corresponding fixing portion 132A. And then fixing each of the optical lenses 11A. By the fixing portion 132A, each of the optical lenses 11A can be stably placed, and it is convenient to fix the optical lenses 11A to the bearing structure 13A.

The fixture 20A includes a first bearing portion 21A and a second bearing portion 22A, and has a plurality of air passages 23A. The second bearing portion 22A is provided on the periphery of the first bearing portion 21A. Are located at the top of the fixture 20A, and the air channel 23A communicates the top and bottom of the fixture 20A to facilitate adsorption, at least one of the air channels 23A is provided at the first bearing portion 21A, at least one of the air passages 23A is provided in the second bearing portion 22A, and is used to fix the bearing structure 13A and the focusing mechanism 12A, respectively. In this preferred embodiment, four offices can be evenly arranged. The air passages 23A are disposed on the first bearing portion 21A, and four air passages 23A are uniformly disposed on the second bearing portion 22A.

The first abutment portion 21A is implemented as a boss in this preferred embodiment, that is, there is a predetermined distance between the top end surface of the first abutment portion 21A and the top end surface of the second abutment portion 22A. The top end surface of the first bearing portion 21A is higher than the top end surface of the second bearing portion 22A. The shape and size of the first bearing portion 21A are matched with the shape and size of the bearing structure 13A. During the assembly process, the first bearing portion 21A is used to carry the bearing structure 13A, and the second bearing portion 22A and The shape and size of the focusing mechanism 12A match, and are used to carry the focusing mechanism 12A during the assembly process. During the assembling process, the supporting structure 13A and the focusing mechanism 12A are placed upside down on the first bearing portion 21A and the second bearing portion 22A, respectively. During the process of installing the optical lens 11A, The load bearing structure 13A is fixed by the air passage 23A provided at the first bearing portion 21A, and the focusing mechanism 12A is fixed by the air passage 23A provided at the second bearing portion 22A. .

Further, the shape of the jig 20A must match the shape of the lens module 10A. In the preferred embodiment, the top end surface of the load bearing structure 13A is lower than the top end surface of the focusing mechanism 12A. A groove is formed between the two, so the first bearing portion 21A is implemented as a boss to match the portion of the bearing structure 13A lower than the focusing mechanism 12A, and the height of the boss The height difference between the load bearing structure 13A and the focusing mechanism 12A.

It is worth mentioning that a suction nozzle or other vacuum equipment may be used to fix the load bearing structure 13A and the focusing mechanism 12A through the air passage 23A to facilitate the installation of the optical lens 11A.

It is worth mentioning that the structure of the jig 20A should match the lens module 10A. When the top end surface of the focusing mechanism 12A and the top end surface of the supporting structure 13A Usually, that is, when the two are on the same plane, the top end surface of the first abutment portion 21A and the top end surface of the second abutment portion 22A of the jig 20A are also on the same plane, respectively, for carrying and fixing the The supporting structure 13A and the focusing mechanism 12A.

FIG. 8 shows a camera module including the lens module 10 in the above preferred embodiment. Referring to FIG. 8, a camera module includes the lens module 10 and a photosensitive device 30, wherein the photosensitive device 30 includes a filter 31, a lens holder 32, a photosensitive wafer 33 and a circuit board 34, The photosensitive device is manufactured using a COB (chip on board) process, wherein the filter 31 is mounted on an upper portion of the lens holder 32 and connected to the lens holder 32, and is located above the photosensitive wafer 33. The photosensitive wafer 33 is mounted above the circuit board 34 and maintains a distance from the inner wall of the lens holder 32. The circuit board 34 is installed at the bottom of the lens holder 32 and makes the photosensitive wafer 33 It is installed in the cavity inside the lens holder 32. The lens module 10 is installed on the top of the photosensitive device 30 and is located on the photosensitive path of the photosensitive chip 33. When light reflected by an object passes through the lens module 10 and enters the camera module, it is The photosensitive wafer 33 receives and performs photoelectric conversion, so that the camera module can obtain an image related to an object in the subsequent steps.

Further, the focusing mechanism 12 is fixedly assembled on the top of the lens base 32 and is connected to the lens base 32 so that the load-bearing structural member 13 moves relative to the focusing mechanism 12 and makes each location The optical lenses 11 are all located on the photosensitive path of the photosensitive wafer 33, which facilitates subsequent imaging and makes the camera module work more stably and reliably.

FIG. 9 shows another embodiment of a camera module including the lens module 10 in the above preferred embodiment. Referring to FIG. 9, a camera module includes the lens module 10 and a photosensitive device 30B. The photosensitive device 30B includes a filter 31B, a lens holder 32B, a photosensitive wafer 33B, and a circuit board 34B. The photosensitive device 30B is manufactured by a flip chip process. The filter 31B is installed on the upper part of the lens holder 32B and connected to the lens holder 32B. The photosensitive wafer 33B is installed below the filter 31B and maintains a distance, wherein the photosensitive The chip 33B is directly connected to the mirror base 32B, and maintains a predetermined distance from the circuit board 34B installed at the bottom of the mirror base 32B. The mirror base 32B has an electrical function, and corresponding electrical components are implanted therein. The imaging of the camera module is ensured, and the thickness of the photosensitive device 30B is made thinner and the size is more compact, so that the size of the camera module is smaller.

The lens module 10 is mounted on the top of the photosensitive device 30B and is located on the photosensitive path of the photosensitive wafer 33B. When light reflected by an object passes through the lens module 10 and enters the camera module, it is The photosensitive wafer 33B receives and performs photoelectric conversion, so that the camera module can obtain an image related to an object later.

Further, the focusing mechanism 12 is fixedly assembled on the top of the lens holder 32B, and is connected to the lens holder 32B, so that the bearing structure 13 moves relative to the focusing mechanism 12 and makes each of the The optical lenses 11 are all located on the photosensitive path of the photosensitive wafer 33B, so as to facilitate subsequent imaging and make the camera module work more stably and reliably.

Those skilled in the art should understand that the embodiments of the present invention shown in the above description and the accompanying drawings are merely examples and do not limit the present invention. The object of the invention has been completely and effectively achieved. The function and structural principle of the present invention have been shown and explained in the embodiments, and the embodiments of the present invention may have any deformation or modification without departing from the principle.

Claims (12)

A method for assembling a lens module is characterized in that the method includes the following steps: (A) placing a focusing mechanism and a load-bearing structural member on a jig; (B) adjusting the jig, placing the The focusing mechanism and the supporting structure are fixed on the jig; (C) at least one optical lens is sequentially placed in the supporting structure and fixed; and (D) the assembly of the lens module is completed. The method according to item 1 of the scope of patent application, wherein in the step (A), the jig has a first bearing portion and a second bearing portion, which are respectively connected to the load bearing structure and the bearing structure. The shape and size of the focusing mechanism are matched, and are suitable for carrying the supporting structure and the focusing mechanism respectively. The method according to item 2 of the scope of patent application, wherein in said step (B), said treatment has at least two air passages, all of which are connected to the top and bottom of said fixture, wherein said air passages are respectively provided The first bearing portion and the second bearing portion are adapted to fix the bearing structure and the focusing mechanism through the air passage using a suction nozzle or a vacuum device. The method according to item 1 of the scope of patent application, wherein in the step (C), each of the optical lenses is assembled monolithically into the load-bearing structural member or a part of each of the optical lenses. After the optical lenses are fitted into each other as a whole, the optical lenses are assembled with the non-fitted optical lenses in turn into the bearing structure. The method according to item 3 of the scope of patent application, wherein in the step (C), each of the optical lenses is assembled monolithically into the load-bearing structural member or a part of each of the optical lenses. After the optical lenses are fitted into each other as a whole, the optical lenses are assembled with the non-fitted optical lenses in turn into the bearing structure. The method according to item 5 of the scope of patent application, wherein in the step (C), each of the optical lenses is fixed with a thermosetting adhesive. The method according to any one of claims 1 to 6, wherein in the step (A), the bearing structure is installed inside the focusing mechanism as a carrier of the focusing mechanism. The focus mechanism is powered on and moves. The method according to item 7 of the scope of patent application, wherein in the step (A), the focusing mechanism is connected with the supporting structure in advance as a whole or the supporting structure is pre-assembled in the focusing mechanism. Internally, the connection between the two is performed in the step (D). The method according to item 7 of the application, wherein in the above method, the focusing mechanism is suitable for selecting a voice coil motor, a piezoelectric ceramic motor, or a liquid crystal motor. The method according to item 7 of the scope of patent application, wherein in the above method, the inner wall of the load-bearing structural member extends toward the receiving cavity to form a fixed portion equal to the number of the optical lenses to fix each of the optical lenses. lens. The method according to item 7 of the scope of patent application, wherein in the above method, the top end surface of the load-bearing structural member is higher than the top end surface of the focusing mechanism, and the top end surface of the first bearing portion of the jig is high A groove is formed between the lower end surface of the second abutting portion and the second structure, and is suitable for accommodating a portion of the supporting structure higher than the focusing mechanism, wherein the depth of the groove is equal to the depth of the groove. The height difference between the focusing mechanism and the supporting structure. The method according to item 7 of the scope of patent application, wherein in the above method, the top end surface of the load-bearing structural member is lower than the top end surface of the focusing mechanism, and the top end surface of the first bearing portion of the jig is high A protrusion is formed between the top end surface of the second bearing portion, and the height of the protrusion is equal to the height difference between the focusing mechanism and the supporting structure.