JP2018097344A - Lens module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lens module which can be assembled section by section, and is fitted and fixed together to make an entire module structure more stable.SOLUTION: A lens module 100 comprises: a lens tube 1; a first lens group 2 accommodated in the lens tube 1, the first lens group comprising at least one lens; a spacer 3 provided at an end of the lens tube 1 close to the image side; a second lens group 4 accommodated in the spacer 3, the second lens group comprising at least one lens; a light-shielding piece 5 provided in the lens tube 1 and/or the spacer 3; and a stopper 6 for fixing the second lens group 4.SELECTED DRAWING: Figure 1

Description

  The present application relates to a lens module, and more particularly to a staged lens module structure.

  With the development of science and technology, electronic equipment is constantly developing in an intelligent direction. In addition to digital cameras, lens modules are also arranged in portable electronic equipment such as tablet PCs and mobile phones in addition to digital cameras.

  The lens module of the prior art is provided between a lens tube, a lens set provided in the lens tube, a light shielding piece or a light shielding plate sandwiched between two adjacent lenses, and a lower layer lens and the lens tube. And a stopper. In the related art, the lens tube has a complete structure constituted by injection molding, and each lens is mounted from the lower part of the lens tube and fixed to the lens tube, and the assembled form is relatively single.

  Therefore, it is necessary to provide a new lens module in order to solve the above problem.

  The present invention provides a lens module.

  A lens tube; a first lens set contained in the lens tube and including at least one lens; a spacer provided at an end of the lens tube near the image side; and at least one lens contained in the spacer. The lens tube includes a first cylindrical wall that forms a light passage hole and a second cylindrical wall that bends and extends from the first cylindrical wall, The lens tube includes a first inner wall and a first outer wall corresponding to the first inner wall, and the spacer includes a second inner wall and a second outer wall corresponding to the second inner wall. The lens tube and the spacer are fitted and fixed.

  The lens tube and the spacer are fixed by a screwing portion or fixed by a locking portion.

1st technical solution The said lens tube and the said spacer are being fixed by the screwing part, and the said screwing part is a 1st screw provided in the 1st inner wall of the said lens tube, and the said spacer And a second screw provided on the second outer wall.

In the first technical plan,
Preferably, the spacer includes a main body portion and an extending portion formed by extending in the optical axis direction from the main body portion, and the extending portion has a first surface close to the object side and a first surface separated from the object side. The second screw is provided in the extending portion.
Preferably, the first surface of the extending portion is in contact with the lower end of the first lens set.
Preferably, the extending portion is recessed from the first surface to the image side to form a recessed groove, and the first lens set is disposed above the recessed groove and provided at a distance from the extending portion. It is done.
Preferably, a recess is provided at a position near the lens tube at the lower end of the first lens set, and the recess and the first inner wall of the lens tube are bonded to each other to accommodate an adhesive. An agent storage groove is formed.
Preferably, the extending portion has a ring structure.
Preferably, the first outer wall of the second cylindrical wall of the lens tube is aligned with the second outer wall of the main body portion of the spacer.
Preferably, the main body portion and the extending portion of the spacer are formed so as to surround an accommodation space that accommodates the second lens set, and the second surface of the extending portion is formed with an upper end of the second lens set. Abut.
Preferably, the lens tube is recessed from the lower end to the object side to form a housing groove, and the first threaded portion is provided in the housing groove.
Preferably, the lens module further includes a stopper provided at an end portion close to the image side in the second lens set.

Second Technical Solution The lens tube and the spacer are fixed by a screwing portion, and the screwing portion is a first screw provided on a first outer wall of the lens tube and a first screw of the spacer. And a second screw provided on the two inner walls.

In the second technical proposal,
Preferably, the spacer includes a main body portion, an extending portion formed by extending from the main body portion in the optical axis direction, and a protruding portion formed by extending from the extending portion to the object side, , A first surface close to the object side and a second surface away from the object side, and the second screw is provided on the protrusion.
Preferably, the first surface of the extending portion is in contact with the lower end of the first lens set.
Preferably, the first lens set is disposed above the first surface and is spaced from the first surface of the extending portion.
Preferably, a recess is provided at a position near the lens tube at the lower end of the first lens set, and the recess and the first inner wall of the lens tube are bonded to each other to accommodate an adhesive. An agent storage groove is formed.
Preferably, the extending portion has a ring structure.
Preferably, the main body portion and the extending portion of the spacer are formed so as to surround an accommodation space that accommodates the second lens set, and the second surface of the extending portion is formed with an upper end of the second lens set. Abut.
Preferably, the lens tube is recessed from the lower end to the object side to form a housing groove, and the first threaded portion is provided in the housing groove.
Preferably, the lens module further includes a stopper provided at an end portion close to the image side in the second lens set.

Third Technical Solution The lens tube and the spacer are fixed by a locking portion, and the locking portion includes a first locking portion provided on a first inner wall of the lens tube, and a first of the spacer. 2 and a second locking portion provided on the outer wall.

In the third technical proposal,
Preferably, the spacer includes a main body portion, an extending portion formed by extending from the main body portion in the optical axis direction, and a protruding portion formed by extending from the extending portion to the object side, and the second portion. The locking portion is provided on the protruding portion.
Preferably, the upper end of the protruding portion is in contact with the lower end of the first lens set.
Preferably, the first lens set is provided at a distance from the spacer.
Preferably, a recess is provided at a position near the lens tube at the lower end of the first lens set, and the recess and the first inner wall of the lens tube are bonded to each other to accommodate an adhesive. An agent storage groove is formed.
Preferably, the first locking portion has a structure that protrudes in the optical axis direction, and the second locking portion has a structure that is recessed in the optical axis direction.
Preferably, the first locking portion is formed to be recessed in a direction away from the optical axis, and the second locking portion is formed to protrude in a direction away from the optical axis.
Preferably, the surfaces of the first locking portion and the second locking portion are both arc-shaped.
Preferably, the first outer wall of the second cylindrical wall of the lens tube is aligned with the second outer wall of the main body portion of the spacer.
Preferably, the lens tube is recessed from the lower end to the object side to form an accommodation groove, and the first locking portion is provided in the accommodation groove.

4th technical plan The said lens tube and the said spacer are fixed by the latching | locking part, and the said latching | locking part is provided with the 1st latching | locking part provided in the 1st outer wall of the said lens tube, and the said spacer. And a second locking portion provided on the second inner wall.

In the fourth technical plan,
Preferably, the spacer includes a main body part, an extending part formed by extending from the main body part in the optical axis direction, and a projecting part formed by extending from the main body part to the object side, The first surface close to the object side and the second surface away from the object side are included, and the second locking portion is provided on the protrusion.
Preferably, the first surface of the extending portion is in contact with the lower end of the first lens set.
Preferably, the first surface of the extending portion is provided at a distance from the first lens set.
Preferably, a recess is provided at a position near the lens tube at the lower end of the first lens set, and the recess and the first inner wall of the lens tube are bonded to each other to accommodate an adhesive. An agent storage groove is formed.
Preferably, the first locking portion is formed to protrude in a direction away from the optical axis, and the second locking portion is formed to be recessed in a direction away from the optical axis.
Preferably, the first locking portion has a structure that is recessed in the optical axis direction, and the second locking portion has a structure that protrudes in the optical axis direction.
Preferably, the surfaces of the first locking portion and the second locking portion are both arc-shaped.
Preferably, the lens tube is recessed from the lower end to the object side to form an accommodation groove, and the first locking portion is provided in the accommodation groove.
Preferably, the lens module further includes a stopper provided at an end portion close to the image side in the second lens set.

The lens module of the present invention has the following merits compared to the related art lens module.
The lens tube and the spacer are fixed by a screwing structure or an engaging structure, are easy to assemble and are free to be assembled, can be repaired immediately even if the lens is mistakenly assembled, the structure is simple, and the entire module configuration is more Stabilize.

It is a figure which shows typically the structure of the lens module in the 1st Example of this invention. It is a figure which shows typically the lens tube and spacer of the lens module in 1st Example of this invention. It is a figure which shows typically some components of the lens module in 1st Example of this invention. It is a figure which shows typically the structure of the lens module in another embodiment of the 1st Example of this invention. It is a figure which shows typically the structure of the lens module in the 2nd Example of this invention. It is a figure which shows typically the lens tube and spacer of a lens module in the 2nd Example of this invention. It is a figure which shows typically some components of the lens module in the 2nd Example of this invention. It is a figure which shows typically the structure of the lens module in another embodiment of the 2nd Example of this invention. It is a figure which shows typically the structure of the lens module in the 3rd Example of this invention. It is a figure which shows typically the lens tube and spacer of a lens module in the 3rd Example of this invention. It is a figure which shows typically some components of the lens module in the 3rd Example of this invention. It is a figure which shows typically the structure of the lens module in another embodiment of the 3rd Example of this invention. It is a figure which shows typically the structure of the lens module in the 4th Example of this invention. It is a figure which shows typically the lens tube and spacer of a lens module in the 4th Example of this invention. It is a figure which shows typically some components of the lens module in the 4th Example of this invention. It is a figure which shows typically the structure of the lens module in another embodiment of the 4th Example of this invention.

  Hereinafter, the present invention will be further described with reference to the drawings and embodiments.

First Embodiment As shown in FIG. 1, the lens module 100 includes a lens tube 1, a first lens set 2 that is housed in the lens tube 1 and includes at least one lens, and the lens tube 1. A spacer 3 provided at an end close to the image side, a second lens set 4 that is accommodated in the spacer 3 and includes at least one lens, and a light shielding piece 5 provided in the lens tube 1 and / or the spacer 3 And a stopper 6 for fixing the second lens set 4.

  As shown in FIGS. 2 and 3, the lens tube 1 includes a first cylindrical wall 11 that extends along the horizontal direction to form a light passage hole, and bends and extends from the first cylindrical wall 11. A second cylindrical wall 12 and a housing space 13 formed by surrounding the first cylindrical wall 11 and the second cylindrical wall 12, and the first lens set 2 includes the housing space 13. The lens tube 1 further includes a first inner wall 14 and a first outer wall 15 corresponding to the first inner wall 14. The lens tube 1 is recessed from the lower end to the object side to form a receiving groove 16.

  The first lens set 12 includes a first lens 21 that is sequentially stacked from the image side to the object side, a second lens 22 that is disposed coaxially with the first lens 21, and a third lens set. The lens 23, the fourth lens 24, and the fifth lens 25. In this embodiment, the first lens set 2 includes five lenses, but if necessary, only one lens is provided. Alternatively, other numbers of lenses may be provided. In the first lens set 2, a light shielding piece 5 is provided between the adjacent lenses, but a light shielding member or a light shielding plate is provided between the corresponding lenses as necessary. Also good. A concave portion 211 is provided at a position near the lens tube 1 on the image side surface of the first lens 21, and the concave portion 211 and the first inner wall 14 of the lens tube 1 contain an adhesive. An adhesive housing groove 212 is formed.

  As shown in FIGS. 1 to 3, the spacer 3 includes a second inner wall 31 and a second outer wall 32 corresponding to the second inner wall 31, and the spacer 3 includes a main body portion 33 and the main body portion. 33 includes an extending portion 34 formed by extending in the optical axis direction, and the main body portion 33 and the extending portion 34 are surrounded to form an accommodating space 35 for accommodating the second lens set 4, and the lens tube 1. The first outer wall 15 of the second cylindrical wall 12 and the second outer wall 32 of the main body 33 of the spacer 3 are aligned. The extending portion 34 includes a first surface 341 that is close to the object side and a second surface 342 that is separated from the object side, and the extending portion 34 has an annular structure, and the first surface 341 of the extending portion 34. Is in contact with the lower end of the first lens set 2, that is, in contact with the image side surface of the first lens 21.

  The second lens set 4 includes a sixth lens 41, and the second lens set 4 in the present embodiment includes only one lens, but only other number of lenses are installed as necessary. You can also. In the second lens set 4, a light shielding member or a light shielding plate may be provided on the object side or the image side of any lens. The second surface 342 of the extending portion 34 contacts the upper end of the second lens set 4, that is, contacts the object side surface of the sixth lens 41.

  The lens tube 1 and the spacer 3 are fixed by a screwing portion 7, and the screwing portion 7 is provided on the first inner wall 14 of the lens tube 1 and the second of the spacer 3. The second screw 72 is provided in the extending portion 34 of the spacer 3, and the first screw 71 is provided in the receiving groove 16.

  As shown in FIG. 4, in another embodiment of the first example, the extending portion 34 ′ is recessed from the first surface 341 ′ toward the image side to form a groove 343 ′, and One lens set 2 ′ is provided above the concave groove 343 ′ and spaced from the extending portion 34 ′. Thus, the first lens 21 ′ is tightened by tightening the screw structure 7 ′. And the sixth lens 41 ′ can be adjusted.

  When the lens module 100 is assembled, first, the lens tube 1, the first lens set 2, and the light shielding piece 5 are provided, and the first lens set 2 is received from the image side end of the lens tube 1. The light shielding piece 5 can be inserted into the space 13 in the order, and the light shielding piece 5 can be inserted between the adjacent lenses in the middle of the space 13, and any number of light shielding pieces 5 and / or light shielding plates are added as necessary. Thereafter, an adhesive is applied to the adhesive accommodating groove 212 at the image side end of the first lens 21 to fix the first lens set 2. A spacer 3, a second lens set 4, and a stopper 6 are provided, and the lenses in the second lens set 4 are sequentially inserted into the accommodation space 35 of the spacer 3, and between any two adjacent lenses. Can be added with any quantity of light-shielding pieces and / or light-shielding plates as necessary, and the object side surface of the sixth lens 41 and the second surface 342 of the extending portion 34 are bonded together, The edge of each lens in the first lens set 2 and the second lens set 4 is the second inner wall 14 of the second tube wall 12 of the lens tube 1 or the second inner portion 33 of the spacer 3. The inner wall 31 can be interference-fitted, can be compounded stress-free, and is preferably interference-fitted. Thus, the coaxiality of the lens set can be ensured, whereby the lens set can be accurately pushed into the lens tube 1 and the spacer 3, and a fixed fixing action is exhibited. A stopper 6 is provided, is provided on the image side surface of the sixth lens 41, and is fixed by adopting an adhesive application process. Finally, the lens tube 1 and the spacer 3 are fastened and fixed by the screwing portion 7. Thus, the assembly of the whole lens module 1 is completed.

  Compared to the related art lens module, the lens module according to the first embodiment has the following advantages.

  The first embodiment can be assembled in stages, the lens tube and the spacer are fixed by a screwed structure, easy to assemble, free, and can be repaired even if the lens is assembled incorrectly. Is simple, and the entire module configuration is made more stable by screwing.

Second Embodiment As shown in FIG. 5, the lens module 100 includes a lens tube 1, a first lens set 2 that is housed in the lens tube 1 and includes at least one lens, and the lens tube 1. A spacer 3 provided at an end close to the image side, a second lens set 4 that is accommodated in the spacer 3 and includes at least one lens, and a light shielding piece 5 provided in the lens tube 1 and / or the spacer 3 And a stopper 6 for fixing the second lens set 4.

  As shown in FIGS. 6 and 7, the lens tube 1 is extended along the horizontal direction to form a light passage hole, and the first tube wall 11 is bent and extended from the first tube wall 11. A second cylindrical wall 12 and a housing space 13 formed by surrounding the first cylindrical wall 11 and the second cylindrical wall 12, and the first lens set 2 includes the housing space 13. The lens tube 1 further includes a first inner wall 14 and a first outer wall 15 corresponding to the first inner wall 14. The lens tube 1 is recessed from the lower end to the object side to form a receiving groove 16.

  The first lens set 12 includes a first lens 21 that is sequentially laminated from the image side to the object side, a second lens 22 that is installed coaxially with the first lens 21, and a third lens set 12. The lens 23, the fourth lens 24, and the fifth lens 25 are included, and the first lens set 2 in the second embodiment includes five lenses, but if necessary, only one lens is provided. Alternatively, other numbers of lenses can be installed. The light shielding pieces 5 are installed between the adjacent lenses in the first lens set 2, but a light shielding member or a light shielding plate can be installed between the corresponding lenses as necessary. . A concave portion 211 is provided at a position close to the lens tube 1 on the image side surface of the first lens 21, and the concave portion 211 and the first inner wall 14 of the lens tube 1 are bonded to accommodate an adhesive. An agent storage groove 212 is formed.

  As shown in FIGS. 5 to 7, the spacer 3 includes a second inner wall 31 and a second outer wall 32 corresponding to the second inner wall 31, and the spacer 3 includes a main body portion 33 and the main body portion. 33 includes an extending portion 34 formed by extending in the optical axis direction and a projecting portion 35 formed by extending from the extending portion toward the object side. The main body portion 33 and the extending portion 34 surround the second portion. An accommodation space 36 for accommodating the lens set 4 is formed. The extending portion 34 includes a first surface 341 that is close to the object side and a second surface 342 that is separated from the object side, and the extending portion 34 has an annular structure, and the first surface 341 of the extending portion 34. Is in contact with the lower end of the first lens set 2, that is, in contact with the image side surface of the first lens 21.

  The second lens set 4 includes a sixth lens 41, and the second lens set 4 in the present embodiment includes only one lens, but only other number of lenses are installed as necessary. You can also. In the second lens set 4, a light shielding member or a light shielding plate may be provided on the object side or the image side of any lens. The second surface 342 of the extending portion 34 contacts the upper end of the second lens set 4, that is, contacts the object side surface of the sixth lens 41.

  The lens tube 1 and the spacer 3 are fixed by a screwing portion 7, and the screwing portion 7 is provided on the first outer wall 15 of the lens tube 1 and the second of the spacer 3. A second screw 72 provided on the inner wall 31, the second screw 72 is provided on the protruding portion 35 of the spacer 3, and the first screw 71 is provided on the receiving groove 16.

  As shown in FIG. 8, in another embodiment of the second example, the first lens set 2 ′ is above the first surface 341 ′ and spaced from the extension 34 ′. When installed in this manner, the air gap between the first lens 21 ′ and the sixth lens 41 ′ can be adjusted by tightening the screwing structure 7 ′.

  When the lens module 100 is assembled, first, the lens tube 1, the first lens set 2, and the light shielding piece 5 are provided, and the first lens set 2 is received from the image side end of the lens tube 1. The light shielding piece 5 can be inserted into the space 13 in the order, and the light shielding piece 5 can be inserted between the adjacent lenses in the middle of the space 13, and any number of light shielding pieces 5 and / or light shielding plates are added as necessary. Thereafter, an adhesive is applied to the adhesive accommodating groove 212 at the image side end of the first lens 21 to fix the first lens set 2. A spacer 3, a second lens set 4, and a stopper 6 are provided, and the lenses in the second lens set 4 are sequentially inserted into the accommodation space 36 of the spacer 3, and between any two adjacent lenses. Can be added with any quantity of light-shielding pieces and / or light-shielding plates as necessary, and the object side surface of the sixth lens 41 and the second surface 342 of the extending portion 34 are bonded together, The edge of each lens in the first lens set 2 and the second lens set 4 is the second inner wall 14 of the second tube wall 12 of the lens tube 1 or the second inner portion 33 of the spacer 3. The inner wall 31 can be interference-fitted, can be compounded stress-free, and is preferably interference-fitted. Thus, the coaxiality of the lens set can be ensured, the lens set can be accurately pushed into the lens tube 1 and the spacer 3, and a fixed fixing action is exhibited. A stopper 6 is provided, is provided on the image side surface of the sixth lens 41, and is fixed by adopting an adhesive application process. Finally, the lens tube 1 and the spacer 3 are fastened and fixed by the screwing portion 7. So far, the assembly of the entire lens module 1 is completed.

  Compared to the related art lens module, the lens module according to the second embodiment has the following advantages.

  The second embodiment can be assembled in stages, the lens tube and the spacer are fixed by a screwed structure, easy to assemble, free, and can be repaired even if the lens is assembled incorrectly. Is simple, and the entire module configuration is made more stable by screwing.

Example 3
As shown in FIG. 9, the lens module 100 includes a lens tube 1, a first lens set 2 that is housed in the lens tube 1 and includes at least one lens, and an end near the image side of the lens tube 1. A spacer 3 provided in a portion, a second lens set 4 including at least one lens housed in the spacer 3, a light shielding piece 5 provided in the lens tube 1 and / or the spacer 3, and the second And a stopper 6 for fixing the lens set 4.

  As shown in FIGS. 10 and 11, the lens tube 1 is extended along the horizontal direction to form a light passage hole, and the first tube wall 11 is bent and extended from the first tube wall 11. A second cylindrical wall 12 and a housing space 13 formed by surrounding the first cylindrical wall 11 and the second cylindrical wall 12, and the first lens set 2 includes the housing space 13. The lens tube 1 further includes a first inner wall 14 and a first outer wall 15 corresponding to the first inner wall 14. The lens tube 1 is recessed from the lower end to the object side to form a receiving groove 16.

  The first lens set 12 includes a first lens 21 that is sequentially laminated from the image side to the object side, a second lens 22 that is installed coaxially with the first lens 21, and a third lens set 12. The lens 23, the fourth lens 24, and the fifth lens 25 are included, and the first lens set 2 in the third embodiment includes five lenses, but only one lens is required if necessary. Alternatively, other numbers of lenses can be installed. The light shielding pieces 5 are installed between the adjacent lenses in the first lens set 2, but a light shielding member or a light shielding plate can be installed between the corresponding lenses as necessary. . A concave portion 211 is provided at a position close to the lens tube 1 on the image side surface of the first lens 21, and the concave portion 211 and the first inner wall 14 of the lens tube 1 are bonded to accommodate an adhesive. An agent storage groove 212 is formed.

  As shown in FIGS. 9 to 11, the spacer 3 includes a second inner wall 31 and a second outer wall 32 corresponding to the second inner wall 31, and the spacer 3 includes a main body portion 33 and the main body portion. 33 includes an extending portion 34 formed by extending in the optical axis direction and a projecting portion 35 formed by extending from the extending portion toward the object side. The main body portion 33 and the extending portion 34 surround the second portion. A housing space 36 for housing the lens set 4 is formed, and the first outer wall 15 of the second cylindrical wall 12 of the lens tube 1 is aligned with the second outer wall 32 of the main body 33 of the spacer 3. . The protruding portion 35 includes a first surface 351 close to the object side, the extending portion 34 includes a second surface 341 close to the object side, and the extending portion 34 has an annular structure, and the protruding portion A first surface 351 of 35 is in contact with the lower end of the first lens set 2, that is, in contact with the image side surface of the first lens 21.

  The second lens set 4 includes a sixth lens 41, and the second lens set 4 in the present embodiment includes only one lens, but only other number of lenses are installed as necessary. Can do. In the second lens set 4, a light shielding member or a light shielding plate may be provided on the object side or the image side of any lens. The second surface 341 of the extending portion 34 is in contact with the upper end of the second lens set 4, that is, in contact with the object side surface of the sixth lens 41.

  The lens tube 1 and the spacer 3 are fixed by a locking portion 7, and the locking portion 7 is provided on the first inner wall 14 of the lens tube 1 and the spacer 3. The second locking portion 72 is provided on the second outer wall 32, the second locking portion 72 is provided on the protruding portion 35 of the spacer 3, and the first locking portion 71 is the receiving groove. 16 is provided. The first surface 351 of the protrusion 35 abuts on the lower end of the first lens set 2. The first locking portion 71 has a structure that protrudes in the optical axis direction, and the second locking portion 72 has a structure that is recessed in the optical axis direction. The surfaces of the first locking part 71 and the second locking part 72 are both arc-shaped and are easy to lock.

  As shown in FIG. 12, in another embodiment of the third embodiment, the first locking portion 71 ′ is formed to be recessed in the direction opposite to the optical axis direction, and the second engagement The stop portion 72 ′ is formed so as to protrude in a direction away from the optical axis, and the surfaces of the first locking portion 71 ′ and the second locking portion 72 ′ are both arc-shaped and locked. Cheap. The upper end of the spacer 3 'is provided at a distance from the first lens set 2', that is, the upper end of the spacer 3 'is provided at a distance from the first lens 21'.

  When the lens module 100 is assembled, first, the lens tube 1, the first lens set 2, and the light shielding piece 5 are provided, and the first lens set 2 is received from the image side end of the lens tube 1. The light-shielding piece 5 can be inserted into the space 13 in order, and the light-shielding piece 5 can be inserted between adjacent lenses in the middle of the space 13, and any number of light-shielding pieces 5 and / or light-shielding plates are added as necessary. Thereafter, an adhesive is applied to the adhesive accommodating groove 212 at the image side end of the first lens 21 to fix the first lens set 2. A spacer 3, a second lens set 4, and a stopper 6 are provided, and the lenses in the second lens set 4 are sequentially inserted into the accommodation space 36 of the spacer 3, and between any two adjacent lenses. Can be added with any quantity of light-shielding pieces and / or light-shielding plates as necessary, and the object side surface of the sixth lens 41 and the second surface 342 of the extending portion 34 are bonded together, The edge of each lens in the first lens set 2 and the second lens set 4 is the second inner wall 14 of the second tube wall 12 of the lens tube 1 or the second inner portion 33 of the spacer 3. The inner wall 31 can be interference-fitted, can be compounded stress-free, and is preferably interference-fitted. Thus, the coaxiality of the lens set can be ensured, the lens set can be accurately pushed into the lens tube 1 and the spacer 3, and a fixed fixing action is exhibited. A stopper 6 is provided, provided on the image side surface of the sixth lens 41, and fixed by adopting an adhesive application process. Finally, the lens tube 1 and the spacer 3 are locked by the locking portion 7 and fixed. The Thus far, the assembly of the entire lens module 1 is completed.

  Compared with the related art lens module, the lens module according to the third embodiment has the following advantages.

  The third embodiment can be assembled in stages, and the lens tube and the spacer are fixed by an engagement structure, easy to assemble, are free, and can be repaired even if the lens is assembled incorrectly. Is simple and makes the whole module configuration more stable.

Example 4
As shown in FIG. 13, the lens module 100 includes a lens tube 1, a first lens set 2 that is housed in the lens tube 1 and includes at least one lens, and an end near the image side of the lens tube 1. A spacer 3 provided in a portion, a second lens set 4 including at least one lens housed in the spacer 3, a light shielding piece 5 provided in the lens tube 1 and / or the spacer 3, and the second And a stopper 6 for fixing the lens set 4.

  As shown in FIGS. 14 and 15, the lens tube 1 includes a first cylindrical wall 11 that extends along the horizontal direction to form a light passage hole, and is bent and extended from the first cylindrical wall 11. A second cylindrical wall 12 and a housing space 13 formed by surrounding the first cylindrical wall 11 and the second cylindrical wall 12, and the first lens set 2 includes the housing space 13. The lens tube 1 further includes a first inner wall 14 and a first outer wall 15 corresponding to the first inner wall 14. The lens tube 1 is recessed from the lower end to the object side to form a receiving groove 16.

  The first lens set 12 includes a first lens 21 that is sequentially laminated from the image side to the object side, a second lens 22 that is installed coaxially with the first lens 21, and a third lens set 12. The lens 23, the fourth lens 24, and the fifth lens 25 are included, and the first lens set 2 in the fourth embodiment includes five lenses, but only one lens is required if necessary. Alternatively, other numbers of lenses can be installed. The light shielding pieces 5 are installed between the adjacent lenses in the first lens set 2, but a light shielding member or a light shielding plate can be installed between the corresponding lenses as necessary. . A concave portion 211 is provided at a position close to the lens tube 1 on the image side surface of the first lens 21, and the concave portion 211 and the first inner wall 14 of the lens tube 1 are bonded to accommodate an adhesive. An agent storage groove 212 is formed.

  As shown in FIGS. 13 to 15, the spacer 3 includes a second inner wall 31 and a second outer wall 32 corresponding to the second inner wall 31, and the spacer 3 includes a main body portion 33 and the main body portion. 33 includes an extending portion 34 formed by extending in the optical axis direction and a projecting portion 35 formed by extending from the main body portion 33 toward the object side, and the main body portion 33 and the extending portion 34 are the second lens. An accommodation space 36 for accommodating the set 4 is enclosed. The extending portion 34 includes a first surface 341 that is close to the object side and a second surface 342 that is separated from the object side. The extending portion 34 has an annular structure, and the first surface 341 of the extending portion 35. Is in contact with the lower end of the first lens set 2, that is, in contact with the image side surface of the first lens 21.

  The second lens set 4 includes a sixth lens 41, and the second lens set 4 in the fourth embodiment includes only one lens, but only other numbers of lenses are installed as necessary. can do. In the second lens set 4, a light shielding member or a light shielding plate may be provided on the object side or the image side of any lens. The second surface 342 of the extending portion 34 contacts the upper end of the second lens set 4, that is, contacts the object side surface of the sixth lens 41.

  The lens tube 1 and the spacer 3 are fixed by a locking portion 7, and the locking portion 7 is provided on the first outer wall 15 of the lens tube 1 and the spacer 3. It includes a second locking portion 72 provided on the second inner wall 31, the second locking portion 72 is provided on the protruding portion 35 of the spacer 3, and the first locking portion 71 is the receiving groove 16 is provided. The first surface 341 of the extending portion 34 is in contact with the lower end of the first lens set 2. The first locking portion 71 has a structure that protrudes in the direction opposite to the optical axis direction, and the second locking portion 72 has a structure that is recessed in the direction opposite to the optical axis direction. The surfaces of the first locking part 71 and the second locking part 72 are both arc-shaped and are easy to lock.

  As shown in FIG. 16, in another embodiment of the fourth embodiment, the first locking portion 71 ′ is formed to be recessed in the optical axis direction, and the second locking portion 72 ′ is a structure that protrudes in the optical axis direction, and the surfaces of the first locking portion 71 ′ and the second locking portion 72 ′ are both arc-shaped and easy to lock. The first surface 341 ′ of the extending portion 34 ′ of the spacer 3 ′ and the first lens set 2 ′ are spaced apart from each other, that is, the first surface 341 ′ of the extending portion 34 ′ and the first surface 341 ′. The first lens 21 'is provided at an interval.

  It should be noted that the shapes of the first locking portion and the second locking portion can be arbitrarily exchanged.

  When the lens module 100 is assembled, first, the lens tube 1, the first lens set 2, and the light shielding piece 5 are provided, and the first lens set 2 is received from the image side end of the lens tube 1. The light-shielding piece 5 can be inserted into the space 13 in order, and the light-shielding piece 5 can be inserted between adjacent lenses in the middle of the space 13, and any number of light-shielding pieces 5 and / or light-shielding plates are added as necessary Thereafter, an adhesive is applied to the adhesive accommodating groove 212 at the image side end of the first lens 21 to fix the first lens set 2. A spacer 3, a second lens set 4, and a stopper 6 are provided, and the lenses in the second lens set 4 are sequentially inserted into the accommodation space 36 of the spacer 3, and between any two adjacent lenses. Can be added with any quantity of light-shielding pieces and / or light-shielding plates as necessary, and the object side surface of the sixth lens 41 and the second surface 342 of the extending portion 34 are bonded together, The edge of each lens in the first lens set 2 and the second lens set 4 is the first inner wall 14 of the second cylindrical wall 12 of the lens tube 1 or the second inner wall of the main body 33 of the spacer 3. 31 can be an interference fit, can be compounded stress-free, and is preferably an interference fit. Thus, the coaxiality of the lens set can be ensured, the lens set can be accurately pushed into the lens tube 1 and the spacer 3, and a fixed fixing action is exhibited. A stopper 6 is provided, provided on the image side surface of the sixth lens 41, and fixed by adopting an adhesive application process. Finally, the lens tube 1 and the spacer 3 are locked by the locking portion 7 and fixed. The So far, the assembly of the entire lens module 1 is completed.

  Compared to the related art lens module, the lens module according to the fourth embodiment has the following advantages.

  The fourth embodiment can be assembled in stages, the lens tube and the spacer are fixed by an engagement structure, easy to assemble and free, and can be repaired even if the lens is assembled incorrectly. Is simple and makes the whole module configuration more stable.

  The above examples are only preferred embodiments of the present application, and those skilled in the art can make improvements without departing from the spirit and scope of the present invention, and these are included in the protection scope of the present invention.

Claims (40)

  A lens tube; a first lens set contained in the lens tube and including at least one lens; a spacer provided at an end of the lens tube near the image side; and at least one lens contained in the spacer. The lens tube includes a first cylindrical wall that forms a light passage hole and a second cylindrical wall that bends and extends from the first cylindrical wall, The lens tube includes a first inner wall and a first outer wall corresponding to the first inner wall, and the spacer includes a second inner wall and a second outer wall corresponding to the second inner wall. The lens tube and the spacer are fitted and fixed.   The lens module according to claim 1, wherein the lens tube and the spacer are fixed by a screwing portion.   The screwing portion includes a first screw provided on a first inner wall of the lens tube and a second screw provided on a second outer wall of the spacer. Item 3. The lens module according to Item 2.   The spacer includes a main body portion and an extending portion formed by extending in the optical axis direction from the main body portion, and the extending portion includes a first surface close to the object side and a second surface separated from the object side. The lens module according to claim 3, wherein the second screw is provided in the extending portion.   The lens module according to claim 4, wherein a first surface of the extending portion is in contact with a lower end of the first lens set.   The extending portion is recessed from the first surface to the image side to form a recessed groove, and the first lens set is provided above the recessed groove and provided at a distance from the extending portion. The lens module according to claim 4.   A concave portion is provided at a position near the lens tube at the lower end of the first lens set, and the concave portion and the first inner wall of the lens tube have an adhesive accommodating groove for accommodating an adhesive. The lens module according to claim 5, wherein the lens module is formed.   The lens module according to claim 4, wherein the extending portion has an annular structure.   The lens module according to claim 4, wherein the first outer wall of the second cylindrical wall of the lens tube and the second outer wall of the main body portion of the spacer are aligned.   The main body portion and the extending portion of the spacer are formed so as to surround an accommodation space for accommodating the second lens set, and the second surface of the extending portion is in contact with the upper end of the second lens set. The lens module according to claim 4.   4. The lens module according to claim 3, wherein the lens tube is recessed from the lower end toward the object side to form an accommodation groove, and the first screw portion is provided in the accommodation groove. 5.   The said screwing part contains the 1st screw | thread provided in the 1st outer wall of the said lens tube, and the 2nd screw | thread provided in the 2nd inner wall of the said spacer, It is characterized by the above-mentioned. Lens module.   The spacer includes a main body part, an extending part formed by extending from the main body part in the optical axis direction, and a protruding part formed by extending from the extending part to the object side, and the extending part is an object side The lens module according to claim 12, further comprising: a first surface close to the second surface and a second surface separated from the object side, wherein the second screw is provided on the projecting portion.   The lens module according to claim 13, wherein a first surface of the extending portion is in contact with a lower end of the first lens set.   The lens module according to claim 13, wherein the first lens set is disposed above the first surface and is spaced from the first surface of the extending portion.   A concave portion is provided at a position near the lens tube at the lower end of the first lens set, and the concave portion and the first inner wall of the lens tube have an adhesive accommodating groove for accommodating an adhesive. The lens module according to claim 14, wherein the lens module is formed.   The lens module according to claim 13, wherein the extending portion has an annular structure.   The main body portion and the extending portion of the spacer are formed so as to surround an accommodation space for accommodating the second lens set, and the second surface of the extending portion is in contact with the upper end of the second lens set. The lens module according to claim 13.   The lens module according to claim 12, wherein the lens tube is recessed from the lower end to the object side to form a housing groove, and the first screw portion is provided in the housing groove.   The lens module according to claim 1, wherein the lens tube and the spacer are fixed by a locking portion.   The said latching | locking part contains the 1st latching | locking part provided in the 1st inner wall of the said lens tube, and the 2nd latching | locking part provided in the 2nd outer wall of the said spacer. Item 21. The lens module according to Item 20.   The spacer includes a main body portion, an extending portion formed by extending from the main body portion in the optical axis direction, and a protruding portion formed by extending from the extending portion toward the object side, and the second locking portion. The lens module according to claim 21, wherein the lens module is provided in the protruding portion.   The lens module according to claim 22, wherein an upper end of the protruding portion is in contact with a lower end of the first lens set.   The lens module according to claim 22, wherein the first lens set is provided at a distance from the spacer.   A concave portion is provided at a position near the lens tube at the lower end of the first lens set, and the concave portion and the first inner wall of the lens tube have an adhesive accommodating groove for accommodating an adhesive. The lens module according to claim 23, wherein the lens module is formed.   23. The structure according to claim 22, wherein the first locking portion has a structure that protrudes to the optical axis, and the second locking portion has a structure that is recessed to the optical axis. Lens module.   The first locking portion has a structure that is recessed in a direction away from the optical axis, and the second locking portion has a structure that protrudes in a direction away from the optical axis. The lens module according to claim 22.   28. The lens module according to claim 26 or 27, wherein the surfaces of the first locking portion and the second locking portion are both arc-shaped.   23. The lens module according to claim 22, wherein the first outer wall of the second cylindrical wall of the lens tube is aligned with the second outer wall of the spacer main body.   The lens module according to claim 21, wherein the lens tube is recessed from the lower end to the object side to form a housing groove, and the first locking portion is provided in the housing groove.   The locking portion includes a first locking portion provided on a first outer wall of the lens tube and a second locking portion provided on a second inner wall of the spacer. The lens module according to claim 20, wherein:   The spacer includes a main body portion, an extending portion formed by extending from the main body portion to the optical axis, and a protruding portion formed by extending from the main body portion to the object side, and the extending portion is disposed on the object side. 32. The lens module according to claim 31, further comprising a first surface that is closer and a second surface that is away from the object side, wherein the second locking portion is provided on the protruding portion.   The lens module according to claim 32, wherein the first surface of the extending portion is in contact with a lower end of the first lens set.   The lens module according to claim 32, wherein the first surface of the extending portion is provided at a distance from the first lens set.   A concave portion is provided at a position near the lens tube at the lower end of the first lens set, and the concave portion and the first inner wall of the lens tube have an adhesive accommodating groove for accommodating an adhesive. The lens module according to claim 33 or 34, wherein the lens module is formed.   The first locking portion has a structure that protrudes in a direction away from the optical axis, and the second locking portion has a structure that is recessed in a direction away from the optical axis. The lens module according to claim 32.   33. The structure according to claim 32, wherein the first locking portion has a structure that is recessed toward the optical axis, and the second locking portion has a structure that protrudes toward the optical axis. Lens module.   38. The lens module according to claim 36 or 37, wherein the surfaces of the first locking portion and the second locking portion are both arc-shaped.   32. The lens module according to claim 31, wherein the lens tube is recessed from its lower end to the object side to form a housing groove, and the first locking portion is provided in the housing groove.   The said lens module further contains the stopper provided in the edge part near the image side in a said 2nd lens set, The any one of Claim 1, 3, 12, 21 and 31 characterized by the above-mentioned. Lens module.

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