TW201732410A - Split type lens integrated with focusing mechanism, assembling method thereof, and shooting module - Google Patents

Abstract

The invention discloses a split type lens integrated with a focusing mechanism, an assembling method thereof, and a shooting module. The split type lens comprises the focusing mechanism and a lens assembly, wherein the lens assembly comprises at least two pieces of optical glasses, at least one lens barrel part and one bearing structural member, each lens barrel part bears at least one piece of the optical glasses to form at least one lens to be adjusted, the bearing structural member bears at least one of the optical glasses to form a fixation lens, the lens to be adjusted is preassembled to the fixation lens and is adapted to be adjusted relative to the assembling position of the fixation lens, and the fixation lens is installed inside the focusing mechanism through the bearing structural member and moves as the focusing mechanism is energized so as to be adapted to focusing. The assembling method is simple, there are fewer procedures, the assembling tolerance chain is decreased, the production efficiency and the yield are improved, and the manufacturing cost is reduced.

Description

Split lens with integrated focusing mechanism, assembly method thereof and camera module

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

With the increasingly fierce competition in the camera module market, the reduction of the manufacturing cost of the camera module, the improvement of production efficiency and the improvement of image quality have become the goals pursued by the camera module manufacturers.

Usually, the focus-adjustable camera module is composed of important components such as a lens, a focusing mechanism, and a photosensitive wafer. The manufacture of the focus-adjustable camera module is usually also the assembly between these components, and the manufacture of the lens and the focusing mechanism itself is also After assembling the components, the finished lens assembly and the focusing mechanism are assembled, and the assembly of the camera module is completed. This method has the following problems: First, the assembly process is relatively complicated and cumbersome, resulting in low production efficiency of the camera module; second, there are assembly tolerances between the lens and the focusing mechanism, plus the lens and the focusing mechanism itself. Assembly tolerances make the tolerance chain too long, which affects the quality of the module. Thirdly, the module produced in this way has a large size in the length and width direction, which is not conducive to the development of the camera module in the direction of lightness and thinness. Fourth, the lens And the focusing mechanism is easy to enter dust during the assembly process, and there is a bad stain phenomenon. This is because the connection between the lens and the focusing mechanism is not so tight, and sometimes there are some small gaps, so that dust will enter the lens and the focusing mechanism. Between, it is difficult to remove, and if the dust inside the module is not removed for a long time, the lens, the focusing mechanism and the entire module will be contaminated, affecting the image quality and service life, and ultimately affecting the camera with the camera. The quality of the entire product group.

In addition, for the split lens module, in assembling the respective lens barrels to form the camera module, the assembly between the respective lens barrels also has assembly tolerances, and the respective lenses of the conventional split lens are fixed together to form a split lens. The module and the completed split lens module can no longer be corrected. These tolerances will result in unstable optical quality of the lens, which will affect the production efficiency and image quality of the entire camera module. Therefore, in the manufacturing process of the lens module of the camera module, how to maintain the image quality of the split lens after being manufactured has also become an urgent problem to be solved.

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

An object of the present invention is to provide a split lens with an integrated focusing mechanism, an assembly method thereof and a camera module, so as to solve the problem that the prior art split lens module has a long tolerance chain, low production efficiency, and high manufacturing cost. The problem is that the module size is large and the module image quality is poor.

An object of the present invention is to provide a split lens with integrated focus mechanism, an assembly method thereof and a camera module, which eliminate the defects in the assembly steps of the lens module of the conventional camera module, and integrate the assembly and calibration of the lens into the camera. In the assembly process of the module as a whole, the imaging quality of the camera module is improved.

An object of the present invention is to provide a split lens with integrated focus mechanism, an assembly method thereof and a camera module, wherein the camera module is adjusted and calibrated before packaging, thereby reducing processing of the split lens and the entire camera module. The process improves production efficiency and reduces manufacturing costs.

An object of the present invention is to provide a split lens with integrated focus mechanism, an assembly method thereof and a camera module, which include at least one lens to be adjusted, each lens to be adjusted includes at least one optical lens and at least one lens component. The assembly position of each lens to be adjusted is adjusted, and the assembly position is adjusted, thereby improving the optical quality of the overall lens formed.

An object of the present invention is to provide a split lens with an integrated focusing mechanism, an assembly method thereof and a camera module, which can compensate for the tolerance existing in the previous process by adjusting the assembly position of the lens barrel component, and reduce the camera module. Assembly tolerance requirements for other components increase productivity and reduce assembly costs.

An object of the present invention is to provide a split lens with an integrated focusing mechanism, an assembly method thereof and a camera module. Each lens to be adjusted can be adjusted in multiple orientations, and the adjustment is more convenient, which is advantageous for ensuring assembly precision and image quality.

An object of the present invention is to provide a split lens with integrated focus mechanism, an assembly method thereof and a camera module. The optical lens is mounted in a load bearing structure to form a fixed lens, so that the load bearing structure replaces the traditional focus. The carrier of the mechanism and the lens barrel of the lens make the size of the lens and the module smaller, which is beneficial to the development of the camera module in the direction of thinning and thinning.

An object of the present invention is to provide a split lens with integrated focus mechanism, an assembly method thereof and a camera module. Since the carrier of the focus mechanism and the lens barrel of the lens as a whole, the carrier between the lens barrel and the focus mechanism is reduced. The assembly process further simplifies the overall assembly process of the camera module, shortening the assembly tolerance chain, and improving production efficiency, product yield, and image quality.

An object of the present invention is to provide a split lens with integrated focus mechanism, an assembly method thereof and a camera module, and the carrier of the focus mechanism is designed into the shape of the lens barrel, and is directly used to carry the optical lens to drive the lens to move. The coke effect is better.

An object of the present invention is to provide a split lens with an integrated focusing mechanism, an assembly method thereof and a camera module, which omits the assembly between the lens barrel and the carrier of the focusing mechanism, thereby avoiding dust entering in the conventional assembly mode. The phenomenon between the two is beneficial to ensure the image quality of the camera module.

An object of the present invention is to provide a split lens with integrated focus mechanism, an assembly method thereof and a camera module, which are assembled by using a jig, which is simple in assembly method, convenient in operation, high in assembly precision, and suitable for popularization and application.

In order to satisfy the above objects of the present invention and other objects and advantages of the present invention, the present invention provides a split lens module including:

a focusing mechanism; and a lens assembly comprising at least two optical lenses, at least one lens barrel component and a carrier structure, each of the lens barrel members respectively carrying at least one of the optical lenses to form at least one to be adjusted a lens, the carrying structure carrying at least one piece of the optical lens to form a fixed lens, the lens to be adjusted being pre-assembled to the fixed lens, the assembled position of the fixed lens being adapted to be adjusted, wherein The fixed lens is mounted inside the focusing mechanism through the carrying structure, and moves according to the energization of the focusing mechanism, thereby being suitable for focusing.

According to an embodiment of the invention, the barrel component is pre-assembled on the top of the carrying structure by glue pre-assembly to realize pre-assembly of the lens to be adjusted and the fixed lens.

According to an embodiment of the present invention, the glue for pre-assembly is a mixed glue of UV glue and thermosetting glue, and the glue is semi-cured after UV exposure to achieve pre-assembly, after the baking process, the glue Will be fully cured to secure the entire split lens module.

According to an embodiment of the invention, the assembly position of the adjustment lens is adapted to be adjusted in at least one direction.

According to an embodiment of the invention, the focusing mechanism is adapted to select a voice coil motor, a piezoceramic motor or a liquid crystal motor.

According to an embodiment of the invention, the load bearing structure is mounted inside the focus mechanism and moves along the focus mechanism.

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

According to an embodiment of the present invention, one piece of the optical lens is fixed to an inner space of the barrel member, and three pieces of the optical lens are fixed to the inside of the supporting structure member along a height direction of the supporting structure member. space.

According to another aspect of the present invention, the present invention further provides a camera module, including:

a photosensitive device comprising: a photosensitive wafer; and a split lens module, wherein the split lens module is disposed on a photosensitive path of the photosensitive wafer, wherein the split lens module comprises a a focusing mechanism and a lens assembly, the lens assembly comprising at least two optical lenses, at least one lens barrel component and a carrier structure, each of the lens barrel members respectively carrying at least one piece of the optical lens to form at least one lens to be adjusted, The carrying structure carries at least one piece of the optical lens to form a fixed lens, and the lens to be adjusted is pre-assembled to the fixed lens, and the assembled position of the photosensitive wafer is adapted to be adjusted, wherein the fixed lens The carrier structure is mounted inside the focusing mechanism, and moves according to the energization of the focusing mechanism, thereby being suitable for focusing.

According to an embodiment of the present invention, the assembly position of the lens to be adjusted is adapted to be adjusted in at least one direction, and the central axis of the split lens module is adjusted to coincide with the central axis of the photosensitive wafer or Within the allowable range of deviation.

According to an embodiment of the 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 on the circuit board, and the circuit board is mounted on the bottom of the lens holder such that the photosensitive wafer is located inside the lens holder and is maintained with the inner wall of the lens holder a spacing.

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

According to another aspect of the present invention, the present invention also provides a method of assembling a split lens module, the method comprising the following steps:

(A) assembling at least one optical lens into an inner space of a lens barrel member to form a lens to be adjusted;

(B) assembling at least one optical lens into the inner space of a load-bearing structural member to form a fixed lens, wherein the load-bearing structural member is disposed inside a focusing mechanism and moves as the focusing mechanism is energized;

(C) pre-assembling the to-be-adjusted lens and the fixed lens to form the split lens module in which the to-be-adjusted lens is adjustable.

According to an embodiment of the present invention, in the step (A), the lens barrel member is inverted and fixed in a recess of a jig, and each of the optical lenses is along the lens barrel. The height direction of the component is mounted to the inner space of the lens barrel member and fixed.

According to an embodiment of the present invention, in the step (B), the carrying structure and the focusing mechanism are respectively placed upside down on the bottom of the barrel component and a second part of the fixture The bearing portion is further mounted on the inner space of the supporting structural member along the height direction of the supporting structural member and fixed.

According to an embodiment of the present invention, in the step (C), before the pre-assembled lens and the fixed lens are pre-assembled, glued on the bottom of the lens barrel component or on the load-bearing structural member The top is glued, and the load-bearing structural member and the barrel member are pre-assembled by glue, wherein the assembly position of the lens to be adjusted is adapted to be adjusted in at least one direction.

According to an embodiment of the present invention, in the above method, the lens barrel member and the load-bearing structural member are carried by a first bearing portion of the jig, and are carried by the second bearing portion. The focusing mechanism, wherein the groove formed by the first bearing portion and the second bearing portion is adapted to receive a portion of the carrying structure member higher than the focusing mechanism and the barrel member, The depth of the groove is equal to the sum of the height of the barrel member and the height of the portion of the carrier structure that is higher than the focus mechanism.

According to an embodiment of the present invention, in the step (B), the carrying structure and the focusing mechanism are respectively inverted and fixed to a first bearing portion and a second bearing portion of a jig. And attaching each of the optical lenses to an inner space of the supporting structural member along a height direction of the supporting structural member, and fixing the optical lens.

According to an embodiment of the present invention, in the step (C), the fixed lens is removed from the jig, and the assembled lens to be adjusted is pre-assembled on the top of the fixed lens, wherein The assembly position of the lens to be adjusted is adapted to be adjusted in at least one direction with respect to the spatial position of the fixed lens.

According to an embodiment of the present invention, in the step (C), the glue to be adjusted and the fixed lens are glued by glue on the top of the fixed lens or the bottom of the lens to be adjusted. Pre-assembled.

According to an embodiment of the present invention, in the above method, the shape and size of the first bearing portion and the second bearing portion are respectively different from the shape and size of the bearing structure member and the lens barrel member. Matching, wherein the groove formed by the first bearing portion and the second bearing portion is adapted to receive a portion of the carrying structure that is higher than the focusing mechanism, the depth of the groove being equal to A height difference between the load bearing member and the focus mechanism.

According to an embodiment of the present invention, in the above method, the carrying structure and the focusing mechanism are fixed by at least two air passages of the treatment, wherein each of the air passages is connected to the fixture. a top and a bottom, the air passages are respectively disposed at the first bearing portion and the second bearing portion, and are further adapted to fix the load-bearing structural member through the air passage using a nozzle or a vacuum device The focusing mechanism.

According to an embodiment of the present invention, in the above method, the directions of the six axes of X, Y, Z, U, V, and W of the assembly position of the lens to be adjusted are all adapted to be adjusted. According to an embodiment of the present invention, in the step (B), the carrier structure is mounted inside the focusing mechanism as a carrier of the focusing mechanism, along with the energization of the focusing mechanism The focusing mechanism moves.

According to an embodiment of the present invention, in the step (B), the focusing mechanism is pre-assembled with the carrying structure member as a whole or the carrying structural member is pre-assembled inside the focusing mechanism, and further The connection between the two is performed in the step (C).

The following description is presented to disclose the invention to enable those skilled in the art to practice the invention. The preferred embodiments in the following description are by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention as defined in the following description may be applied to other embodiments, modifications, improvements, equivalents, and other embodiments without departing from the spirit and scope of the invention.

In a conventional focus-adjustable camera module, the lens module generally 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 (Holder) connected to other parts of the focusing mechanism And the carrier acts as a carrier of the moving component, and has a thread inside thereof, and is matched with the lens by thread 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 together with the carrier, thereby achieving the purpose of focusing. .

In addition, once the lens components in the conventional split optical lens are packaged, the assembly position cannot be adjusted, and the image quality of the lens or the camera module during the assembly process cannot be adjusted.

In the present invention, by improving the carrier of each lens barrel and the focusing mechanism, the lens barrel of the fixed lens and the carrier of the focusing mechanism are designed as a whole to reduce the assembly process, reduce the manufacturing cost, improve the image quality, and at least improve the image quality and at least A lens is pre-assembled, and its assembly position is adjusted in a subsequent process to obtain an adjustable split lens, so that the image quality of the camera module during assembly can be adjusted in time and improved. Manufacturing yield of the body lens and camera module.

Referring to Figure 1, a split lens module provided by the present invention will be described. As shown in FIG. 1, a split lens module 10 includes a lens assembly 11 and a focusing mechanism 12, wherein the lens assembly 11 includes at least two optical lenses 111, at least one lens barrel member 112, and a load bearing structure 113. Each of the optical lenses 111 is mounted in the carrier structure 113 and the barrel member 112, respectively, to form a fixed lens 1 including the carrier structure 113 and at least the lens barrel member 112. The lens 2 to be adjusted is pre-assembled to the fixed lens 1 , and the assembled position of the lens 2 to be adjusted is adapted to be adjusted with respect to the assembled position of the fixed lens 1 to adjust the The optical center of the split lens module, wherein the fixed lens 1 is mounted inside the focusing mechanism 12, and the carrying structure 113 serves as a carrier of the focusing mechanism 12, and the focusing mechanism 12 is energized. Exercise, and then focus.

The preferred embodiment is described by taking one of the fixed lens 1 and the to-be-adjusted lens 2 as an example, wherein the fixed lens 1 carries at least one piece of the optical lens 111, and the lens 2 to be adjusted carries at least one piece. The optical lens 111. As shown in FIG. 1 , in the preferred embodiment, the fixed lens 1 includes three optical lenses 111 , and three of the optical lenses 111 are sequentially disposed along the height direction of the supporting structure 113 . The inner space of the supporting structure 113 is fixed and can be assembled and fixed by means of dispensing or welding or other implementable manner. The preferred embodiment The optical lens 111 is fixed in the load-bearing structural member 113 using a thermosetting glue.

Further, the carrier structure 113 not only serves as a barrel member of the fixed lens 1 but also carries the optical lenses 111, and simultaneously serves as a carrier of the focusing mechanism 12, and is mounted inside the focusing mechanism 12. Connected to other components of the focusing mechanism 12, when the focusing mechanism 12 is energized, the carrier structure 113 moves along with the energization of the focusing mechanism 12 along the focusing mechanism 12. The height direction or other directions of movement, and thus suitable for focusing.

The lens 2 to be adjusted includes a piece of the optical lens 111, and the optical lens 111 is fixed to an inner space of the lens barrel member 112, wherein the optical device can be dispensed or soldered or otherwise implemented. The lens 111 is assembled and fixed with the carrier structure 113. In the preferred embodiment, the optical lens 111 is fixed in the barrel member 112 by thermosetting glue.

The lens 2 to be adjusted is pre-assembled on the top of the fixed lens 1 by the glue 3, that is, the lens barrel member 112 is connected to the load-bearing structure 113 through the glue 3, thereby realizing the lens 2 to be adjusted. Assembly with the fixed lens 1 , wherein the assembly position of the lens 2 to be adjusted is adapted to be adjusted in at least one direction, and the adjustable direction is adapted to be selected as a horizontal direction, a vertical direction, an oblique direction, and a circumferential direction One or several of them.

It is worth mentioning that the glue 3 for pre-assembling the lens 2 to be adjusted is suitable for being selected as a thermosetting glue or a mixed glue of a UV glue and a thermosetting glue. The glue 3 of the preferred embodiment adopts a kind of glue. The glue of the UV glue and the thermosetting glue, wherein the glue 3 is semi-cured after the UV exposure to achieve pre-assembly, and when the lens to be adjusted 2 needs to be fixed after the adjustment, the baking process is performed. The glue 3 is fully cured to secure the entire split lens module 10.

It is to be noted that the preferred embodiment is by way of example only, and those skilled in the art may pre-assemble a plurality of the to-be-adjusted lenses 2 to form a plurality of adjustable lenses to be adjusted, and It is also possible to fix a plurality of lenses and retain one or several of them as the lens to be adjusted to adjust the optical center of the lens in a subsequent process.

Referring to FIG. 2, FIG. 3, FIG. 8 and FIG. 9, the assembling method of the split lens module 10 of the present invention and a jig 20 used in the assembly process will be explained, wherein the jig 20 and the jig are described. The shape and size of the split lens module 10 are matched to assist in assembling the split lens module 10.

As shown in FIG. 8, the jig 20 includes a first bearing portion 21 and a second bearing portion 22, and has at least two air passages 23, wherein the second bearing portion 22 is disposed at the a peripheral end of the bearing portion 21, and a top end surface of the second bearing portion 22 is higher than a bottom end surface of the first bearing portion 21, and a groove is formed therebetween, wherein the groove is located at the At the first bearing portion 21, in the split lens module 10, the top end surface of the carrying structure member 113 is higher than the top end surface of the focusing mechanism 12, and the jig 20 is A groove between the first bearing portion 21 and the second bearing portion 22 receives the portion of the carrying structure member 113 and the barrel member 112 that is higher than the focusing mechanism 12, in other words, The first bearing portion 21 is matched with the shape and size of the bearing structure member 13 and the barrel member 112, and the second bearing portion 22 matches the shape and size of the focusing mechanism 12 when When the split lens module 10 is assembled, the focusing mechanism 12 is placed upside down on the second bearing portion 22, and the carrying structure member 113 is placed upside down a bearing portion 21, wherein the first bearing portion 21 and the second bearing portion 22 are respectively used to carry the carrying structure member 113, the barrel member 112, and the focusing mechanism during assembly 12.

Further, the air passage 23 communicates with the top and bottom of the jig 20 such that the external environment of the top of the jig 20 and the external environment of the bottom thereof communicate through the air passage 23, at least one of which The air passage 23 is disposed at the first bearing portion 21, and at least one of the air passages 23 is disposed at the second bearing portion 22 to facilitate placing a nozzle or other vacuum device on the jig 20 The bottom portion applies an external force to the carrying structure member 113 and the focusing mechanism 12 through the air passage 23 to fix the carrying structure member 113 or/and the barrel member 112 and the focusing mechanism 12 respectively The first bearing portion 21 and the second bearing portion 22 are described to facilitate assembly in a subsequent process.

In the preferred embodiment, four air passages 23 are uniformly and spacedly disposed on the first bearing portion 21 and the second bearing portion 22, respectively, so as to fix the bearing structure in all directions. 13 and the focusing mechanism 12 are fixed to be more secure.

As shown in FIG. 2, FIG. 3 and FIG. 9, an assembly method 900 of the split lens module 10 includes the following steps:

Step (901): inverting the focusing mechanism 12 and the supporting structure member 113 on the jig 20;

Step (902): adjusting the jig 20, fixing the focusing mechanism 12 and the supporting structure member 113 to the jig 20;

Step (903): each of the optical lenses 111 are assembled into the inner space of the carrying structure 113, and fixed to form the fixed lens 1;

Step (904): removing the fixed lens 1 from the jig 20;

Step (905): pre-assembling the lens 2 to be adjusted on the top of the fixed lens 1;

Step (906): completing the assembly of the split lens module 10.

In the step (901), since the carrier structure 113 has been designed to have the dual functions of the lens barrel and the focus mechanism carrier, the focusing mechanism 12 and the supporting structure member are 113 may be assembled in one of three ways: (a) the focusing mechanism 12 may be previously coupled with the carrier structure 113 such that the carrier structure 113 has the function of a carrier of the focusing mechanism 12, As a whole, the fixture 20 is placed on the jig 20 to further have the kinetic energy of the lens barrel; (b) the focusing mechanism 12 and the load-bearing structural member 113 are respectively placed on the matching fixture 20 After assembling the optical lens 111 into the interior of the load-bearing structural member 113, the load-bearing structural member 113 has the function of the lens barrel, and each of the opticals After the lens 111 is assembled as a whole, the carrier structure 113 is assembled with the focusing mechanism 12 to further have the function of the carrier of the focusing mechanism 12.

In the step (902), by adjusting the jig 20 to cooperate with a nozzle or a vacuum device, the nozzle or vacuum device is opposed to the air passage 23 at the bottom of the jig 20. Applying pressure, and then adsorbing through the air passage 23 to fix the focusing mechanism 12 and the supporting structure 113, thereby fixing the focusing mechanism 12 and the supporting structure 113 to the fixture, respectively. The second bearing portion 22 and the first bearing portion 21 of the 20 prevent sliding, shaking, offset, etc. during subsequent assembly, and reduce assembly deviation to ensure assembly precision.

Further, a depth of the groove formed between the first bearing portion 21 and the second bearing portion 22 is equal to a height difference between the bearing structure 113 and the focusing mechanism 12, and further The portion of the carrying structure 113 that is higher than the focusing mechanism 12 is accommodated.

It is worth mentioning that if the carrying structure 113 and the focusing mechanism 12 are already connected together before being inverted, the first bearing portion 21 does not need to be provided with the air passage 23, only the The focus mechanism 12 can be fixed.

In the step (903), each of the optical lenses 111, such as the three optical lenses 111 in the preferred embodiment, is placed. The preferred embodiment uses a single sheet of the optical lenses. In the practice of 11, three pieces of the optical lens 111 are sequentially placed, and after being placed, it is suitable for direct fixation by thermosetting glue, and it can be fixed by placing one optical lens each, or all of them can be fixed after being placed. According to the actual situation. It can be understood by those skilled in the art that the assembly manner of each of the optical lenses 111 can be selected according to the structure of the inner wall of the supporting structure 113. For example, three optical lenses 111 can be pre-fitted. After being assembled together, it is mounted as a unit to the inner space of the load-bearing structural member 113.

It is worth mentioning that each of the optical lenses 111 can also be pre-assembled in the barrel member 112 and adjusted in a subsequent process.

In the step (904), first, the nozzle or other vacuum device is removed, and then the fixed lens 1 is taken out from the jig 20, and the assembly of the fixed lens 1 is completed, wherein the fixed lens 1 is taken out. It is possible to apply a reverse force to the fixed lens 1 by applying air through the air passage 23, and to eject the fixed lens 1 to be taken out. Alternatively, the fixed lens 1 may be taken out according to actual conditions.

In the step (905), before the pre-adjusting lens 2 is pre-assembled to the fixed lens 1, the lens 2 to be adjusted is assembled, and one piece of the optical lens 111 is fixed to the lens barrel. The inner space of the component 112 completes the assembly of the lens 2 to be adjusted, wherein the fixture 20 can be used to assist the assembly of the lens 2 to be adjusted, and the lens barrel component 112 of the lens 2 to be adjusted is passed through The air passage 23 is fixed to the first bearing portion 21, and the optical lens 111 is attached to the lens barrel member 112 and fixed.

After the lens 2 to be adjusted is assembled, the lens 2 to be adjusted is mounted on the top end of the fixed lens 1 by the glue 3, that is, the glue 3 is applied to the bottom of the lens 2 to be adjusted or coated. On the top of the fixed lens 1, the glue 3 is applied to the bottom of the barrel member 112 or the top of the supporting structure 113, so that the barrel member 112 and the supporting structure 113 pass through The glue 3 is connected, and the barrel member 112 is adjusted to adjust the lens 2 to be adjusted.

In the step (906), the lens 2 to be adjusted is pre-assembled in the split lens module 10, and the assembly position thereof can be adjusted when the split lens module 10 is assembled to the camera mode. After the group is adjusted, the lens 2 to be adjusted is adjusted so that the imaging module satisfies the resolution requirement, and then the lens 2 to be adjusted is completely fixed.

Referring to FIG. 4, FIG. 5 and FIG. 10, a second assembly method of the split lens module 10 according to the present invention will be described. A jig 20A is matched with the split lens module 10 to assist The assembly of the split lens module 10, wherein the jig 20A includes a first bearing portion 21A and a second bearing portion 22A, and has at least two air passages 23A, wherein the second bearing portion 22A is disposed at a periphery of the first bearing portion 21A, at least one of the air passages 23A is disposed at the first bearing portion 21A, and at least one of the air passages 23A is disposed at the second bearing portion 22A.

Further, the shape and size of the first bearing portion 21A are matched with the shape and size of the lens barrel member 112 and the carrying structure member 113, and the second bearing portion 22A and the The shape and size of the focusing mechanism 12 are matched to facilitate the assembly thereof, wherein the top end surface of the first bearing portion 21A is lower than the bottom end surface of the second bearing portion 22A, and a groove is formed therebetween. At the same time, the top end surface of the carrying structure member 13 is higher than the top end surface of the focusing mechanism 12, and the lens barrel member 112 is superposed on the top of the supporting structure member 113. Therefore, in the preferred embodiment, The depth of the groove is equal to the height difference between the carrying structure 113 and the focusing mechanism 12 and the height of the barrel member 112, thereby accommodating the barrel member 112 and the supporting structure The piece 113 is raised above the portion of the focusing mechanism 12 to facilitate assembly and assembly.

The second assembly method 1000 of the split lens module 10 includes the following steps:

Step (1001): inverting the barrel member 112 on the jig 20A and fixing it;

Step (1002): a piece of the optical lens 111 is assembled in the barrel member 112, and fixed to form the lens 2 to be adjusted;

Step (1003): applying glue on the barrel member 112, inverting the carrier structure 113 on the barrel member 112 to perform pre-assembly between the two, and inverting the focusing mechanism 12 to the treatment With 20A;

Step (1004): adjusting the jig 20A, fixing the focusing mechanism 12 and the supporting structure member 113 on the jig 20A;

Step (1005): assembling each of the optical lenses 111 into the inner space of the load-bearing structural member 113 in sequence, and fixing the same to form the fixed lens 1;

Step (1006): removing the split lens module 10 from the jig 20A to complete assembly of the split lens module 10.

In the step (1001), the barrel member 112 is placed upside down on the first bearing portion 21A of the jig 20A such that the barrel member 112 is located in the groove of the jig 20A. And placing a nozzle or other vacuum device on the bottom of the jig 20A, fixing the lens barrel member 112 through the air passage 23A provided in the first bearing portion 21A, preventing In the process of assembling the lens, there are phenomena such as offset and tilt to ensure the accuracy of assembly.

In the step (1002), a piece of the optical lens 111 is mounted on the inner space of the barrel member 112, and is fixed by glue or welding. The embodiment is selected as a thermosetting glue to fix the optical. Lens 111.

In addition, those skilled in the art can also fix a plurality of the optical lenses 111 in the lens barrel member 112. The number of lenses and the number of lens barrel components are merely by way of example and not limiting.

In the step (1003), the bottom of the barrel member 112 is glued, and the top of the supporting structure 113 may be glued, and then the two are superposed to achieve a Assembly, for example, the glue 3 may be selected as a thermosetting glue or a mixed glue of a thermosetting glue and a UV glue, and then the carrier structure 113 is placed on the bottom of the barrel member 112, then the mirror The cartridge member 112 and the carrier structure 113 are pre-assembled by the glue 3, wherein the assembly position of the barrel member 112 is adapted to be adjusted, and the carrier structure 113 is higher than the portion of the focusing mechanism 12. The focus mechanism 12 is placed in the groove of the jig 20A while the focus mechanism 12 is placed on the second bearing portion 22A.

It is worth mentioning that, in the step (1003), since the carrier structure 113 has been designed to have the dual function of the lens barrel and the focus mechanism carrier, the focusing mechanism 12 is The carrier structure 113 can be assembled in one of three ways: (a) the focusing mechanism 12 can be previously coupled with the carrier structure 113 such that the carrier structure 113 has a focusing mechanism 12 The function of the carrier, as a whole, is placed on the jig 20 together to further have the kinetic energy of the lens barrel; (b) the focus mechanism 12 and the load-bearing structure member 113 are respectively placed upside down to match After the fixture 20 is assembled, the assembly of the two is performed; (c) after the optical lens 111 is assembled inside the carrier structure 113, the carrier structure 113 is provided with the function of the lens barrel. After assembling the optical lens 111 as a whole, the carrier structure 113 and the focusing mechanism 12 are assembled to further have the function of the carrier of the focusing mechanism 12.

In the step (1004), by adjusting the jig 20A to cooperate with a nozzle or a vacuum device, the nozzle or vacuum device is opposed to the air passage 23A at the bottom of the jig 20A. Applying pressure, and then adsorbing through the air passage 23A to fix the focusing mechanism 12, thereby fixing the focusing mechanism 12 to the second bearing portion 22A of the jig 20A, the bearing structure The piece 113 is stably located in the groove by the glue between the barrel member 112, preventing sliding, shaking, offset, etc. during subsequent assembly, and reducing assembly deviation to ensure assembly accuracy. .

In the step (1005), each of the optical lenses 111, such as the three optical lenses 111 in the preferred embodiment, is placed, and the preferred embodiment uses a single sheet of the optical lenses. In the practice of 11, three pieces of the optical lens 111 are sequentially placed, and after being placed, it is suitable for direct fixation by thermosetting glue, and it can be fixed by placing one optical lens each, or all of them can be fixed after being placed. According to the actual situation. It can be understood by those skilled in the art that the assembly manner of each of the optical lenses 111 can be selected according to the structure of the inner wall of the supporting structure 113. For example, three optical lenses 111 can be pre-fitted. After being assembled together, it is mounted as a unit to the inner space of the load-bearing structural member 113.

In the step (1006), first, the nozzle or other vacuum device is removed, and then the split lens module 10 is taken out from the jig 20A to complete the assembly of the split lens module 10, wherein The split lens module 10 can be taken out by the air passage 23A to apply an opposite force to the split lens module 10, and the split lens module 10 can be ejected and then taken out. The split lens module 10 can be taken out in other ways according to actual conditions.

The to-be-adjusted lens 2 is pre-assembled in the split lens module 10, and the assembly position thereof can be adjusted. After the split lens module 10 is assembled into the camera module, the The lens 2 to be adjusted is adjusted so that the imaging module meets the resolution requirement, and the lens 2 to be adjusted is completely fixed.

In addition, in the preferred embodiment, after the lens barrel member 112 and the carrying structure member 113 are pre-assembled, each of the optical lenses 111 may be sequentially mounted to the barrel member 112 and In the carrying structure, the pre-assembly of the split lens module 10 is completed after the fixing, that is, the assembly of the optical lens 111 in the above step (1002) is changed to the other three pieces in the step (1005). The optical lenses 111 are assembled together.

Referring to FIG. 6, a camera module including the split lens module 10 of the above preferred embodiment will be described. As shown in FIG. 6, a camera module includes the split lens module 10 and a photosensitive device 30A, wherein the photosensitive device 30A includes a filter 31A, a lens holder 32A, a photosensitive wafer 33A and a The circuit board 34A, the photosensitive device is manufactured by a COB (chip on board) process, wherein the filter 31A is mounted on an upper portion of the inside of the lens holder 32A and connected to the lens holder 32A, and is located at the photosensitive plate Above the wafer 33A, the photosensitive wafer 33A is mounted above the wiring board 34A, and is spaced apart from the inner wall of the lens holder 32A, and the wiring board 34A is mounted on the bottom of the lens holder 32A, and The photosensitive wafer 33A is mounted in a cavity inside the lens holder 32A. The split lens module 10 is mounted on the top of the photosensitive device 30A and located on the photosensitive path of the photosensitive wafer 33A. When the light reflected by the object passes through the split lens module 10, the image is inserted into the camera module. Inside the group, photoelectric conversion is received and performed by the photosensitive wafer 33A, so that the image associated with the object can be obtained by the subsequent camera module.

Further, the focusing mechanism 12 and the supporting structure 113 are fixedly assembled on the top of the lens holder 32A, and are connected to the lens holder 32A, so that each of the optical lenses 111 is located in the photosensitive The photosensitive path of the wafer 33 facilitates subsequent imaging, so that the camera module is more stable and reliable.

It is worth mentioning that after the split lens module 10 is assembled with the photosensitive device 30A, the pre-assembly of the camera module is completed, and the pre-assembled camera module is energized to collect the camera module. Group imaging, according to the imaging module, optically calculating the adjustment mode and the adjustment amount of the lens 2 to be adjusted according to an optical method, and adjusting the assembly position of the lens 2 to be adjusted according to the adjustment amount, so that the split lens is The central axis of the module 10 coincides with the central axis of the photosensitive wafer 33A or within a range allowed by the deviation, so that the imaging module image satisfies the resolution requirement, and then the lens 2 to be adjusted is completely fixed, so that The lens barrel member 112 and the carrier structure 113 are fixed together, that is, the lens 2 to be adjusted and the fixed lens 1 are fixed together to complete assembly of the camera module.

Preferably, the glue 3 to be pre-assembled and the glue 3 of the fixed lens 1 are pre-assembled in a semi-cured state, and the lens 2 to be adjusted can be semi-fixed to prevent the offset thereof, and The adjustment is performed, and after the adjustment is completed, the fixing of the to-be-adjusted lens 2 is achieved by completely curing the glue 3, and the assembly of the camera module is completed.

The assembly position of the lens 2 to be adjusted is adapted to be adjusted with respect to the directions of the six axes of X, Y, Z, U, V, and W of the camera module.

Referring to FIG. 7, an embodiment of a camera module including the split lens module 10 of the above preferred embodiment will be described. As shown in FIG. 7, a camera module includes the split lens module 10 and a photosensitive device 30B, wherein the photosensitive device 30B includes a filter 31B, a lens holder 32B, a photosensitive wafer 33B and a The circuit board 34B is manufactured by a wafer flip chip process, wherein the filter 31B is mounted on an upper portion of the inside of the lens holder 32B and connected to the lens holder 32B. The wafer 33B is mounted under the filter 31B and maintained at a distance, wherein the photosensitive wafer 33B is directly connected to the lens holder 32B, and is kept predetermined with the wiring board 34B mounted at the bottom of the lens holder 32B. The mirror holder 32B has an electrical function, and a corresponding electrical component is implanted therein to ensure imaging of the camera module, and at the same time, the thickness of the photosensitive device 30B is thinner and compact, thereby making the The size of the camera module is small.

The split lens module 10 is mounted on the top of the photosensitive device 30B and located on the photosensitive path of the photosensitive wafer 33B. When the light reflected by the object passes through the split lens module 10, the image is inserted into the camera module. The inside of the group is received and photoelectrically converted by the photosensitive wafer 33B, so that the image associated with the object can be obtained by the subsequent camera module.

Further, the focusing mechanism 12 and the supporting structure 113 are fixedly assembled on the top of the lens holder 32B, and are connected to the lens holder 32B, so that each of the optical lenses 111 is located in the photosensitive The photosensitive path of the chip 33B facilitates subsequent imaging, so that the camera module works more stably and reliably.

Those skilled in the art should understand that the embodiments of the present invention described in the above description and the accompanying drawings are only by way of illustration and not limitation. The object of the invention has been achieved completely and efficiently. The present invention has been shown and described with respect to the embodiments of the present invention, and the embodiments of the present invention may be modified or modified without departing from the principles.

1‧‧‧Fixed lens
10‧‧‧Split lens module
11‧‧‧ lens assembly
111‧‧‧Optical lenses
112‧‧‧Mirror components
113‧‧‧Loading structural parts
12‧‧‧ Focusing mechanism
2‧‧‧Adjustable lens
20, 20A‧‧‧ fixture
21, 21A‧‧‧ First Aid Department
22, 22A‧‧‧Second Aid Department
23, 23A‧‧ Air passage
3‧‧‧ glue
30A, 30B‧‧‧photosensitive devices
31A, 31B‧‧‧ Filters
32A, 32B‧‧ ‧ mirror base
33A, 33B‧‧‧Photosensitive wafer
34A, 34B‧‧‧ circuit board
900, 1000‧‧‧ Assembly method
901~906‧‧‧Steps
Steps from 1001 to 1006‧‧

1 is a cross-sectional view of a split lens module in accordance with a preferred embodiment of the present invention. 2 and 3 are schematic views showing a first assembly method of the split type lens module according to the above preferred embodiment of the present invention. 4 and 5 are schematic views showing a second assembly method of the split lens module according to the above preferred embodiment of the present invention. 6 is a cross-sectional view of a camera module including a split lens module in accordance with the above-described preferred embodiment of the present invention. 7 is a variant implementation of a camera module including a split lens module in accordance with the above-described preferred embodiment of the present invention. FIG. 8 is a schematic structural view of a jig used in the assembly process of the split lens module according to the above preferred embodiment of the present invention. 9 is a flow chart of a method of assembling a split lens module according to the above preferred embodiment of the present invention. FIG. 10 is a flow chart showing another assembly method of the split lens module according to the above preferred embodiment of the present invention.

1‧‧‧Fixed lens

10‧‧‧Split lens module

11‧‧‧ lens assembly

111‧‧‧Optical lenses

112‧‧‧Mirror components

113‧‧‧Loading structural parts

12‧‧‧ Focusing mechanism

2‧‧‧Adjustable lens

3‧‧‧ glue

Claims (25)

A split lens module, comprising: a focus mechanism; and a lens assembly comprising at least two optical lenses, at least one lens barrel component and a load bearing structure, each of the lens barrel components Carrying at least one piece of the optical lens to form at least one lens to be adjusted, the carrier structure carrying at least one piece of the optical lens to form a fixed lens, the lens to be adjusted being pre-assembled on the fixed lens, relative to the The assembly position of the fixed lens is adapted to be adjusted, wherein the fixed lens is mounted inside the focusing mechanism through the carrying structure, and moves with the energization of the focusing mechanism, thereby being suitable for focusing. The split lens module according to the first aspect of the invention, wherein the lens barrel component is pre-assembled on the top of the load-bearing structural member by glue pre-assembly to realize pre-assembly of the lens to be adjusted and the fixed lens. The split lens module according to claim 2, wherein the glue used for pre-assembly is a mixed glue of UV glue and thermosetting glue, and the glue is semi-cured to achieve pre-assembly after ultraviolet exposure. After the baking process, the glue is completely cured to fix the entire split lens module. The split lens module according to the first aspect of the invention, wherein the assembly position of the lens to be adjusted is adapted to be adjusted in at least one direction. The split lens module of claim 2, wherein the assembly position of the lens to be adjusted is adapted to be adjusted in at least one direction. The split lens module according to any one of claims 1 to 5, wherein the focusing mechanism is adapted to select a voice coil motor, a piezoelectric ceramic motor or a liquid crystal motor. The split lens module according to any one of claims 1 to 5, wherein the carrying structure is mounted inside the focusing mechanism and moves along the focusing mechanism. The split lens module of claim 6, wherein the load bearing structure is mounted inside the focus mechanism and moves along the focus mechanism. The split lens module of claim 7, wherein the top end surface of the load bearing structure is higher than the top end surface of the focusing mechanism. The split lens module of claim 7, wherein one of the optical lenses is fixed to an inner space of the lens barrel member, and three of the optical lenses are along a height direction of the load bearing structure. Fixed to the inner space of the load bearing structure. A method for assembling a split lens module, characterized in that the method comprises the following steps: (A) assembling at least one optical lens into an inner space of a lens barrel member to form a lens to be adjusted; (B) at least An optical lens is assembled in an inner space of a carrying structure to form a fixed lens, wherein the carrying structure is disposed inside a focusing mechanism to move as the focusing mechanism is energized; and (C) The lens to be adjusted and the fixed lens are pre-assembled to form the split lens module in which the lens to be adjusted is adjustable. The method of claim 11, wherein in the step (A), the barrel member is inverted and fixed in a recess of a fixture, and each of the optical lenses is further The height direction of the barrel member is attached to the inner space of the barrel member and fixed. The method of claim 11, wherein in the step (B), the carrying structure and the focusing mechanism are respectively inverted and fixed to a first bearing portion of a jig and A second bearing portion is further mounted on the inner space of the supporting structural member along the height direction of the supporting structural member and fixed. The method of claim 12, wherein in the step (B), the carrying structure and the focusing mechanism are respectively placed upside down on the bottom of the barrel member and the jig And a second bearing portion, wherein each of the optical lenses is mounted on the inner space of the supporting structural member along a height direction of the supporting structural member, and is fixed. The method of claim 13, wherein in the step (C), the fixed lens is removed from the jig, and the assembled lens to be adjusted is pre-assembled to the fixed The top of the lens, wherein the assembled position of the lens to be adjusted is adapted to be adjusted in at least one direction with respect to the spatial position of the fixed lens. The method of claim 14, wherein in the step (C), before the pre-assembled lens and the fixed lens are pre-assembled, a glue is applied to the bottom of the lens barrel member or The top of the load-bearing structural member is glued, and the load-bearing structural member and the lens barrel member are pre-assembled by glue, wherein the assembled position of the lens to be adjusted is adapted to be adjusted in at least one direction. The method of claim 15, wherein in the step (C), the lens to be adjusted and the said to be adjusted are applied by applying glue on the top of the fixed lens or the bottom of the lens to be adjusted The fixed lens is pre-assembled with glue. The method of claim 16, wherein in the above method, the lens barrel member and the carrier structure are carried by a first bearing portion of the fixture, and the The second bearing portion carries the focusing mechanism, wherein the groove formed by the first bearing portion and the second bearing portion is adapted to receive the portion of the carrying structure that is higher than the focusing mechanism In the barrel component, the depth of the groove is equal to the sum of the height of the barrel component and the height of the portion of the carrier structure that is higher than the focusing mechanism. The method of claim 17, wherein in the above method, the shape and size of the first abutting portion and the second bearing portion are respectively different from the supporting structural member and the barrel member The shape and the size are matched, wherein the groove formed by the first bearing portion and the second bearing portion is adapted to receive a portion of the carrying structure member higher than the focusing mechanism, the groove The depth is equal to the height difference between the load bearing structure and the focus mechanism. The method of claim 18 or 19, wherein in the above method, the load bearing structure and the focusing mechanism are fixed by at least two air passages of the treatment, wherein each of the air passages Connected to the top and bottom of the jig, the air passages are respectively disposed at the first bearing portion and the second bearing portion, and are adapted to pass through the air passage using a nozzle or a vacuum device The carrier structure and the focusing mechanism are fixed. The method according to claim 20, wherein in the above method, the glue for pre-assembly is a mixed glue of UV glue and thermosetting glue, and the glue is semi-cured to achieve pre-assembly after ultraviolet exposure. After the baking process, the glue is completely cured to fix the entire split lens module. The method according to any one of claims 11 to 19, wherein in the above method, the directions of the six axes of X, Y, Z, U, V, and W of the assembly position of the lens to be adjusted are adapted to be Adjustment. The method according to any one of claims 11 to 19, wherein in the step (B), the carrier structure is mounted inside the focusing mechanism as a carrier of the focusing mechanism, The focusing mechanism is energized to move along the focusing mechanism. The method of claim 21, wherein in the step (B), the carrier structure is mounted inside the focusing mechanism as a carrier of the focusing mechanism, along with the focusing mechanism The power is applied to move along the focusing mechanism. The method of claim 23, wherein in the step (B), the focusing mechanism is previously connected to the carrier structure as a whole or the carrier structure is pre-assembled to the focusing mechanism. Internally, the connection between the two is further carried out in the step (C).