CN210401808U

CN210401808U - Lens module and lens mount

Info

Publication number: CN210401808U
Application number: CN201921297372.XU
Authority: CN
Inventors: 梁永福
Original assignee: Newmax Technology Co Ltd
Current assignee: Newmax Technology Co Ltd
Priority date: 2019-08-12
Filing date: 2019-08-12
Publication date: 2020-04-24
Anticipated expiration: 2029-08-12

Abstract

A lens module, comprising: the lens holder is cylindrical and is provided with an inner ring surface, the inner ring surface encloses an accommodating space, two ends of the lens holder in the axial direction are respectively a first end and a second end, and the inner ring surface close to the first end comprises a sealing section; at least one lens, which is arranged in the accommodating space and the outer ring surface of which is contacted with the inner ring surface of the lens seat; the pressing ring is arranged in the accommodating space, and the outer ring surface of the pressing ring corresponds to the sealing section of the lens holder so as to prevent the at least one lens from falling out of the first end of the lens holder; at least one groove is concavely arranged on one side of the outer ring surface of the sealing section or the pressing ring, which is closer to the first end, the at least one groove is opened towards the direction of the first end, the axial length of the at least one groove is smaller than the axial length of the outer ring surface of the pressing ring, and an adhesive is injected into the at least one groove, so that the outer ring surface of the pressing ring and the inner ring surface of the lens seat are fixed with each other.

Description

Lens module and lens mount

Technical Field

The utility model relates to a lens module and lens mount.

Background

Generally, a lens module includes a lens holder and lenses, wherein an inner annular surface of the lens holder generally has a plurality of step surfaces for sequentially and respectively abutting and positioning the lenses, so that the distance between the lenses is accurate and error-free, and an end of the lens holder with a larger inner diameter is generally fixed to the inner annular surface of the lens holder by a pressing ring, thereby not only preventing the lenses from falling out, but also further ensuring the position accuracy of each lens, and further providing a protection effect.

Besides the tight fit or snap-fit structure, the press ring also has an axially extending groove formed at a position corresponding to the inner annular surface of the lens holder, and an adhesive is injected into the groove to fix the press ring, as described in TW I616698.

However, the above structure has at least two disadvantages, firstly, the groove axially penetrates through the whole thickness of the press ring, the injected adhesive overflows to the other side of the press ring, namely the position where the lens is located, which may cause the contamination of the lens, in addition, the arrangement of the grooves can reduce the direct contact area between the outer ring surface of the press ring and the lens mount, and the press ring is fixed only by the adhesive, which may cause the press ring to be difficult to fix and fall off after the adhesive is degraded for a long time.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a lens module and a lens holder, which can fix a press ring in an inner annular surface of the lens holder, and prevent an adhesive from flowing to a lens and contaminating the lens.

To achieve the above objective, the present invention provides a lens module, which includes a lens holder, at least one lens and a compression ring.

The lens seat is cylindrical and is provided with an inner ring surface, the inner ring surface encloses an accommodating space, two ends of the lens seat in the axial direction are respectively a first end and a second end, and the inner ring surface close to the first end comprises a sealing section; the at least one lens is arranged in the accommodating space, and the outer annular surface of the at least one lens is contacted with the inner annular surface of the lens seat; the press ring is arranged in the accommodating space, and the outer annular surface of the press ring corresponds to the sealing section of the lens holder so as to prevent the at least one lens from falling out of the first end of the lens holder; wherein, one side of the outer ring surface of the sealing section or the press ring, which is closer to the first end, is concavely provided with at least one notch, the at least one notch is opened towards the direction of the first end, the axial length of the at least one notch is smaller than the axial length of the outer ring surface of the press ring, and the at least one notch is injected with an adhesive, so that the outer ring surface of the press ring and the inner ring surface of the lens seat are fixed with each other.

Preferably, the at least one groove is in the shape of a ring groove around the axial direction.

Preferably, the at least one notch is surrounded by a sidewall and a bottom surface, and the bottom surface is connected to a side of the sidewall closer to the second end.

Preferably, the side wall of the at least one slot includes a bottom section and a top section along the axial direction, the bottom section is connected to the bottom surface, the top section is located on a side of the bottom section far from the bottom surface, and the inner diameter of the top section gradually increases toward the first end.

Preferably, in the above aspect, the radial cross section of the tip section is convex arc-shaped.

Preferably, in the above aspect, the tip section has a conical surface shape.

Preferably, the side wall of the at least one notch includes a bottom section and a top section along an axial direction, the bottom section is connected to the bottom surface, the top section is located on a side of the bottom section far from the bottom surface, and an inner diameter of the top section is larger than an inner diameter of the bottom section so as to form a step surface between the top section and the bottom section.

Preferably, the stepped surface is inclined to the radial direction and faces the first end of the lens holder.

Preferably, the bottom section and the top section are inclined to the axial direction of the lens holder and face the first end of the lens holder.

Preferably, the bottom section and the top section respectively form an included angle with the axial direction of the lens mount, and the included angle is greater than 0 degree and less than 30 degrees.

Preferably, the radial depth of the at least one notch is between 2 microns and 300 microns.

To achieve the above object, the present invention further provides a lens holder, which is cylindrical and has an inner annular surface, the inner annular surface encloses a receiving space for accommodating at least one optical element, the two ends of the lens holder in the axial direction are respectively a first end and a second end, the inner annular surface is close to the first end and comprises a sealing section, the sealing section is used for contacting and positioning the outer annular surface of the at least one optical element, at least one slot is concavely formed on one side of the sealing section close to the first end, the at least one slot is open towards the first end, the axial length of the at least one slot is smaller than the axial length of the outer annular surface of the optical element, and an adhesive is injected into the at least one slot to fix the outer annular surface of the at least one optical element and the inner annular surface of the lens holder.

Preferably, in the above aspect, the tip section has a conical surface shape.

The utility model has the advantages that the camera lens module that provides injects the adhesive by the scarce groove of locating lens mount inner annular surface or clamping ring outer peripheral face, make lens mount and clamping ring fixed each other, and because lack the opposite side that the groove does not extend to the clamping ring, the adhesive of injection can not overflow to the lens, moreover, the clamping ring outer annular surface is close to the one end of second end and does not have the scarce groove and has considerable area of contact, can with the lens mount inner annular surface closely fix a position each other with the tight fit, the fixed effect of clamping ring has been strengthened further.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below of the drawings required to be used in the description of the embodiments or the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a perspective combination view of the lens mount and the press ring of the present invention.

Fig. 2 is an exploded perspective view of the lens holder and the press ring of the present invention.

Fig. 3 is a perspective view of the present invention.

Fig. 4 is a cross-sectional view of the present invention.

Fig. 5 is a partially enlarged view of fig. 4.

Fig. 6 is a schematic illustration of the gluing of fig. 5.

Fig. 7 is a partial sectional view of a second embodiment of the present invention.

Fig. 8 is a partial sectional view of a third embodiment of the present invention.

Fig. 9 is a partial sectional view of a fourth embodiment of the present invention.

Fig. 10 is a partial sectional view of a fifth embodiment of the present invention.

Fig. 11 is a partially enlarged view of fig. 10.

Wherein, 10a, 10b, 10c, 10 d: a lens mount; 11: a first end; 12: a second end; 13. 13a, 13b, 13c, 13 d: a sealing section; 14. 14b, 14c, 14 d: notching; 141. 141b, 141c, 141 d: a bottom surface; 142. 142b, 142c, 142 d: a side wall; 1421. 1421b, 1421c, 1421 d: a bottom section; 1422. 1422b, 1422c, 1422 d: a top section; 143: a step surface; 20: a lens; 30. 30 a: pressing a ring; 31: an outer annular surface; 32: notching; 40: an adhesive; h1, H2, H3, H4: depth; θ: an included angle; l1, L2, L3, L4, L5, L6, L7, L8: length.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The following description is given by way of example only, and not by way of limitation, of the present invention, including .

Referring to fig. 1 to 11, the present invention provides a lens module including a

lens holder

10, 10a, 10b, 10c, 10d, at least one lens 20 and a

press ring

30, 30 a.

The

lens mount

10, 10a, 10b, 10c, 10d is cylindrical and has an inner annular surface, the inner annular surface encloses an accommodating space, two ends of the

lens mount

10, 10a, 10b, 10c, 10d in the axial direction are respectively a first end 11 and a second end 12, and the inner annular surface includes a

sealing section

13, 13a, 13b, 13c, 13d near the first end 11; the at least one lens 20 is disposed in the accommodating space and the outer annular surface thereof contacts with the inner annular surface of the

lens mount

10, 10a, 10b, 10c, 10 d; the

press rings

30 and 30a are disposed in the accommodating space and the outer

annular surfaces

31 and 31a thereof correspond to the

sealing sections

13, 13a, 13b, 13c and 13d of the

lens holders

10, 10a, 10b, 10c and 10d to prevent the at least one lens 20 from falling out of the first ends of the

lens holders

10, 10a, 10b, 10c and 10 d; wherein, one side of the sealing

segment

13, 13b, 13c, 13d or the outer ring surface 31a of the pressing ring 30a closer to the first end 11 is recessed with at least one

notch

14, 32, 14b, 14c, 14d, the at least one

notch

14, 32, 14b, 14c, 14d is open towards the first end 11, the axial length of the at least one

notch

14, 32, 14b, 14c, 14d is smaller than the axial length of the

outer ring surface

31, 31a of the

pressing ring

30, 30a, the at least one

notch

14, 32, 14b, 14c, 14d is injected with an adhesive 40, so that the

outer ring surface

31, 31a of the

pressing ring

30, 30a and the inner ring surface of the

lens holder

10, 10a, 10b, 10c, 10d are fixed to each other; preferably, the radial depth H1, H2, H3 and H4 of the at least one

notch

14, 32, 14b, 14c and 14d is between 2 microns and 300 microns.

The present invention also provides a

lens holder

10, 10b, 10c, 10d, which is cylindrical and has an inner annular surface, the inner annular surface encloses a receiving space for receiving at least one optical element, two axial ends of the

lens holder

10, 10b, 10c, 10d are respectively a first end 11 and a second end 12, the inner annular surface near the first end 11 includes a

sealing section

13, 13a, 13c, 13d, the

sealing section

13, 13a, 13c, 13d is used for the outer annular surface contact positioning of the at least one optical element (such as a lens, a shading sheet or a pressing ring), the

sealing section

13, 13a, 13c, 13d is recessed to one side near the first end 11 to form at least one

slot

14, 14b, 14c, 14d, the at least one

slot

14, 14b, 14c, 14d is open towards the first end 11, the axial length of the at least one

slot

14, 14b, 14c, 14d is smaller than the axial length of the outer annular surface of the optical element, the at least one

notch

14, 14b, 14c, 14d is used for injecting an adhesive 40, so that the outer annular surface of the at least one optical element and the inner annular surface of the

lens holder

10, 10b, 10c, 10d are fixed to each other.

In the main embodiment of the present invention, the at least one

slot

14, 32, 14b, 14c, 14d is annular around the axial direction, and the at least one

slot

14, 32, 14b, 14c, 14d is enclosed by a

sidewall

142, 142b, 142c, 142d and a

bottom surface

141, 141b, 141c, 141d, the

bottom surface

141, 141b, 141c, 141d is connected to a side of the

sidewall

142, 142b, 142c, 142d closer to the second end 12; specifically, the

sidewall

142, 142b, 142c, 142d of the at least one

slot

14, 32, 14b, 14c, 14d includes a

bottom section

1421, 1421b, 1421c, 1421d and a

top section

1422, 1422b, 1422c, 1422d along the axial direction, the

bottom section

1421, 1421b, 1421c, 1422d is connected to the

bottom surface

141, 141b, 141c, 141d, the

top section

1422, 1422b, 1422c, 1422d is located on the side of the

bottom section

1421, 1421b, 1421c, 1421d farther from the

bottom surface

141, 141b, 141c, 142d, the inner diameter of the

top section

1422, 1422b, 1422c, 1422d is gradually enlarged toward the first end 11, for example, the radial cross section of the top section 1422 may be convex arc shape, as shown in fig. 5 or fig. 7, the top section 1422b is in a shape, as shown in fig. 8, and the inner diameter of the bottom section 1421c is larger than that of the bottom section 1421c and the top section 1422c, as shown in fig. 9, thereby making the opening of the notch larger to facilitate the injection of the adhesive; preferably, the step surface 143 is inclined to the radial direction toward the first end of the lens holder 10c, so that the adhesive can easily flow from the top section 1422c to the bottom section 1421 c.

Referring to fig. 10 and 11, in this embodiment, the bottom section 1421d and the top section 1422d are respectively inclined to the axial direction of the lens holder 10d and face the first end of the lens holder 10d to form a shape gradually expanding toward the first end in two stages, and preferably, an included angle θ is formed between the bottom section 1421d and the top section 1422d and the axial direction of the lens holder 10d, and the included angle θ is greater than 0 degree and smaller than 30 degrees.

Preferably, the axial length L1, L2, L3, L4, L5, L6, L7, L8 of each of the

bottom sections

1421, 1421b, 1421c, 1421d and the

top sections

1422, 1422b, 1422c, 1422d is 2 microns to 300 microns.

In particular, in the main embodiment of the present invention, the

notches

14, 14b, 14c, 14d are disposed on the lens holder 10, however, as shown in fig. 7, the notch 32 may also be disposed on the outer peripheral surface 31a of the pressing ring 30 a.

By the structure, the utility model provides a lens module pours into the adhesive into by the scarce groove of locating lens mount inner ring surface or clamping ring outer peripheral face into, makes lens mount and clamping ring fixed each other, and because the scarce groove does not extend to the opposite side of clamping ring, the adhesive that pours into can not overflow to the lens, moreover, the one end that the outer anchor ring of clamping ring outer ring is close to the second end does not have the scarce groove and has considerable area of contact, can with the lens mount inner ring surface closely fix a position each other with the tight fit, the fixed effect of clamping ring has been strengthened further.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A lens module, comprising:

the lens holder is cylindrical and is provided with an inner ring surface, the inner ring surface encloses an accommodating space, two ends of the lens holder in the axial direction are respectively a first end and a second end, and the inner ring surface close to the first end comprises a sealing section;

at least one lens, which is arranged in the accommodating space and the outer ring surface of which is contacted with the inner ring surface of the lens seat;

the pressing ring is arranged in the accommodating space, and the outer ring surface of the pressing ring corresponds to the sealing section of the lens holder so as to prevent the at least one lens from falling out of the first end of the lens holder;

at least one groove is concavely arranged on one side of the outer ring surface of the sealing section or the pressing ring, which is closer to the first end, the at least one groove is opened towards the direction of the first end, the axial length of the at least one groove is smaller than the axial length of the outer ring surface of the pressing ring, and an adhesive is injected into the at least one groove, so that the outer ring surface of the pressing ring and the inner ring surface of the lens seat are fixed with each other.

2. The lens module as claimed in claim 1, wherein the at least one notch is ring-shaped around the axial direction.

3. The lens module as claimed in claim 2, wherein the at least one notch is defined by a sidewall and a bottom surface, the bottom surface being connected to a side of the sidewall closer to the second end.

4. The lens module as claimed in claim 3, wherein the sidewall of the at least one notch includes a bottom section and a top section along an axial direction, the bottom section is connected to the bottom surface, the top section is located on a side of the bottom section farther from the bottom surface, and an inner diameter of the top section gradually increases toward the first end.

5. The lens module as claimed in claim 4, wherein the radial cross section of the top segment is convex arc-shaped.

6. The lens module as claimed in claim 4, wherein the top section is conical.

7. The lens module as claimed in claim 3, wherein the side wall of the at least one notch includes a bottom section and a top section along an axial direction, the bottom section is connected to the bottom surface, the top section is located on a side of the bottom section farther from the bottom surface, and an inner diameter of the top section is larger than an inner diameter of the bottom section so as to form a step surface between the top section and the bottom section.

8. The lens module as recited in claim 7, wherein the step surface is inclined to a radial direction toward the first end of the lens holder.

9. The lens module as claimed in claim 7, wherein the bottom section and the top section are respectively inclined to the axial direction of the lens holder and face the first end of the lens holder.

10. The lens module as claimed in claim 9, wherein the bottom section and the top section respectively form an included angle with the axial direction of the lens holder, the included angle is greater than 0 degree and less than 30 degrees.

11. The lens module as claimed in any one of claims 1 to 10, wherein the at least one notch has a radial depth of between 2 μm and 300 μm.

12. A lens mount, comprising: the lens holder is cylindrical and provided with an inner ring surface, the inner ring surface encloses a containing space to contain at least one optical element, two ends of the lens holder in the axial direction are respectively a first end and a second end, the inner ring surface is close to the first end and comprises a sealing section, the sealing section is used for the contact and positioning of the outer ring surface of the at least one optical element, one side of the sealing section, which is close to the first end, is concavely provided with at least one notch, the at least one notch is opened towards the direction of the first end, the axial length of the at least one notch is smaller than the axial length of the outer ring surface of the optical element, and the at least one notch is used for injecting an adhesive to fix the outer ring surface of the at least one optical element and the inner ring surface of the lens holder.

13. The lens holder of claim 12, wherein the at least one groove is ring-groove shaped around the axial direction.

14. The lens holder of claim 13, wherein the at least one notch is defined by a sidewall and a bottom surface, the bottom surface being connected to a side of the sidewall closer to the second end.

15. The lens holder of claim 14, wherein the at least one recessed sidewall includes a bottom section and a top section along an axial direction, the bottom section is connected to the bottom surface, the top section is located on a side of the bottom section farther from the bottom surface, and an inner diameter of the top section is gradually increased toward the first end.

16. The lens holder of claim 15, wherein the top section has a convex arc shape in radial cross section.

17. The lens holder of claim 15, wherein the top section is conical in shape.

18. The lens holder of claim 14, wherein the at least one grooved sidewall includes a bottom section and a top section along an axial direction, the bottom section is connected to the bottom surface, the top section is located on a side of the bottom section farther from the bottom surface, and an inner diameter of the top section is larger than an inner diameter of the bottom section so as to form a step surface between the top section and the bottom section.

19. The lens holder of claim 18, wherein the step surface is inclined to a radial direction toward the first end of the lens holder.

20. The lens holder of claim 18, wherein the bottom section and the top section are respectively inclined to the axial direction of the lens holder toward the first end of the lens holder.

21. The lens holder of claim 20, wherein the bottom section and the top section respectively form an included angle with an axial direction of the lens holder, the included angle is greater than 0 degree and less than 30 degrees.

22. The lens holder of any one of claims 12 to 21, wherein a radial depth of the at least one notch is between 2 microns and 300 microns.