CN210401809U - Lens module and lens mount - Google Patents
Lens module and lens mount Download PDFInfo
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- CN210401809U CN210401809U CN201921301796.9U CN201921301796U CN210401809U CN 210401809 U CN210401809 U CN 210401809U CN 201921301796 U CN201921301796 U CN 201921301796U CN 210401809 U CN210401809 U CN 210401809U
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- lens
- ring surface
- groove
- lens holder
- axial direction
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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 of the sealing section and the outer ring surface of the press ring is provided with at least one spiral groove, the at least one spiral groove extends around the axial direction of the lens seat and is open near the first end of the lens seat, and an adhesive is injected into the at least one spiral groove to fix the outer ring surface of the press ring and the inner ring surface of the lens seat.
Description
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.
The pressing ring is not only fixed by a tight fit or a snap fit structure, but also fixed by forming an axially extending groove at a position corresponding to the inner annular surface of the lens holder and injecting an adhesive into the groove, as described in taiwan patent No. 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; at least one of the sealing section and the outer ring surface of the press ring is provided with at least one spiral groove, the at least one spiral groove extends around the axial direction of the lens seat and is open near the first end of the lens seat, and an adhesive is injected into the at least one spiral groove to fix the outer ring surface of the press ring and the inner ring surface of the lens seat.
Preferably, in the above technical solution, a distance of the at least one screw groove along the axial direction of the lens holder is smaller than a length of the outer ring surface of the pressing ring along the axial direction of the lens holder.
Preferably, in the above technical solution, a distance of the at least one spiral groove along the axial direction of the lens mount is greater than or equal to a length of an outer annular surface of the pressing ring along the axial direction of the lens mount, so that the at least one spiral groove is communicated with two opposite sides of the pressing ring.
Preferably, the at least one spiral groove has a triangular radial cross section and a pointed bottom.
Preferably, the radial depth of the at least one spiral groove is between 2 microns and 300 microns.
To achieve the above object, the present invention further provides a lens mount, 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 mount in the axial direction are respectively a first end and a second end, the inner annular surface includes a sealing section near the first end, the sealing section is for contacting and positioning the outer annular surface of the at least one optical element, the sealing section is provided with at least one spiral groove, the at least one spiral groove is open around the axial extension of the lens mount and near the first end of the lens mount, and an adhesive is injected into the at least one spiral groove to fix the outer annular surface of the at least one optical element and the inner annular surface of the lens mount.
Preferably, a distance of the at least one screw groove along the axial direction of the lens holder is smaller than a length of the outer annular surface of the at least one optical element along the axial direction of the lens holder.
Preferably, a distance of the at least one screw groove along the axial direction of the lens holder is greater than or equal to a length of the outer annular surface of the at least one optical element along the axial direction of the lens holder, so that the at least one screw groove is communicated with two opposite sides of the at least one optical element.
Preferably, the at least one spiral groove has a triangular radial cross section and a pointed bottom.
Preferably, the at least one spiral groove has a triangular radial cross section and a pointed bottom.
The utility model has the advantages that the lens module that provides pours into the adhesive into by the spiral groove of locating lens mount inner ring surface or clamping ring outer peripheral face into, make lens mount and clamping ring fixed each other, and because the spiral groove does not extend to and is close to lens department or although extend to and be close to lens department but length is very long, the adhesive that pours into can not overflow to lens or extremely difficult overflow to the lens, moreover, this clamping ring also is similar screw thread extension with the part that this sealing section does not have the spiral groove, that is to say, the clamping ring is similar annular and has splendid friction and spacing effect with the direct contact part of sealing section, make the clamping ring can with lens mount close-fitting better and fix a position each other, the fixed effect of clamping ring has been strengthened still 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 view of the lens mount and the pressing 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 partially enlarged view of fig. 3.
Fig. 5 is a cross-sectional view of the present invention.
Fig. 6 is a partially enlarged view of fig. 5.
Fig. 7 is a schematic diagram of the glue filling of the present invention.
Fig. 8 is a perspective view of the pressing ring of the present invention.
Fig. 9 is a perspective view of a pressure ring according to a second embodiment of the present invention.
Fig. 10 is a perspective view of a lens mount according to a third embodiment of the present invention.
Fig. 11 is a perspective view of a lens mount according to a fourth embodiment of the present invention.
Fig. 12 is a cross-sectional view of a third embodiment of the present invention.
Fig. 13 is a partially exploded view of fig. 12.
Fig. 14 is a schematic illustration of a third embodiment of the present invention.
Wherein, 10a, 10 b: a lens mount; 11: a first end; 12: a second end; 13. 13a, 13 b: a sealing section; 131a, 131 b: a screw groove; 20: a lens; 30. 30 a: pressing a ring; 31. 31 a: an outer annular surface; 32. 32 a: a screw groove; 40: an adhesive.
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 14, the present invention provides a lens module including a lens holder 10, 10a, 10b, at least one lens 20 and a press ring 30, 30 a.
The lens mount 10, 10a, 10b is cylindrical and has an inner ring surface, the inner ring surface encloses a containing space, two ends of the lens mount 10, 10a, 10b in the axial direction are respectively a first end 11 and a second end 12, the inner ring surface comprises a sealing section 13, 13a, 13b 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, 10 b; the press ring 30, 30a is disposed in the accommodating space and the outer ring surface thereof corresponds to the sealing sections 13, 13a, 13b of the lens mount 10, 10a, 10b to prevent the at least one lens 20 from falling out of the first end 11 of the lens mount 10, 10a, 10 b; at least one of the sealing segments 13a, 13b or the outer annular surfaces 31, 31a of the pressing rings 30, 30a is provided with at least one screw groove 131a, 131b, 32a, the at least one screw groove 131a, 131b, 32a extends around the axial direction of the lens holder 10, 10a, 10b and is open near the first end of the lens holder 10, 10a, 10b, an adhesive 40 is injected into the at least one screw groove 131a, 131b, 32a, so that the outer annular surfaces 31, 31a of the pressing rings 30, 30a and the inner annular surfaces of the lens holder 10, 10a, 10b are fixed to each other.
The utility model also provides a lens mount 10a, 10b, which is cylindrical and has an inner ring surface, the inner ring surface encloses a receiving space for receiving at least one optical element (such as a lens, a shading sheet or a press ring), two ends of the lens mount 10a, 10b in the axial direction are respectively a first end and a second end, the inner ring surface comprises a sealing section 13a, 13b near the first end, the sealing section 13a, 13b is used for the outer ring surface of the at least one optical element to contact and position, the sealing sections 13a, 13b are provided with at least one screw groove 131a, 131b, the at least one screw groove 131a, 131b extends around the axial direction of the lens holder 10a, 10b and is open near the first end of the lens holder 10a, 10b, an adhesive 40 is injected into the at least one groove 131a, 131b to fix the outer annular surface of the at least one optical element and the inner annular surfaces of the lens mounts 10a, 10 b.
It should be noted that, in the embodiments illustrated in the drawings of the present invention, the at least one spiral groove 131a, 131b, 32a is formed in only one of the sealing sections 13a, 13b or the pressing rings 30, 30a, however, in other possible embodiments, the spiral grooves may be formed in both the sealing sections and the pressing rings.
In the main embodiment of the present invention, the distance of the at least one spiral groove 32, 131a along the axial direction of the lens holder 10, 10a is smaller than the length of the outer annular surface 31 of the pressing ring 30 along the axial direction of the lens holder 10, 10a, that is, the at least one spiral groove 32, 131a does not extend to the end of the pressing ring 30 closer to the second end 12, for example, a plurality of short spiral grooves may be provided, as shown in fig. 8 or 10; in another possible embodiment of the present invention, as shown in fig. 9 or fig. 11, the distance between the at least one spiral groove 32a, 131b along the axial direction of the lens holder 10b may be greater than or equal to the length of the outer annular surface 31a of the pressing ring 30a along the axial direction of the lens holder, so that the at least one spiral groove 32a, 131b is connected to the two opposite sides of the pressing ring 30a, for example, only one long spiral groove is provided.
More specifically, the radial cross section of the at least one groove 131a, 131b, 32a is triangular and has a pointed bottom, and preferably, the radial depth of the at least one groove 131a, 131b, 32a is between 2 microns and 300 microns.
In practical use, the adhesive 40 can be injected through the opening of the at least one groove 131a, 131b, 32a near the first end 11, and then flows along the at least one groove 131a, 131b, 32a toward the second end 12, during which process, the adhesive is gradually hardened, and the chance of the adhesive overflowing to the lens is further reduced.
To sum up, the utility model provides a lens module pours into the adhesive into by the spiral 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 spiral groove does not extend to and is close to lens department or although extend to and be close to lens department but length is very long, the adhesive that pours into can not overflow to lens or extremely difficult overflow to the lens, moreover, this clamping ring also is similar screw thread extension with the part that this sealing section does not have the spiral groove, that is to say, the clamping ring is similar annular and has splendid friction and spacing effect with the direct contact part of sealing section, make clamping ring and lens mount close fit and fix a position each other better, further strengthened the fixed effect of clamping ring.
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 (10)
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 of the sealing section and the outer ring surface of the press ring is provided with at least one spiral groove, the at least one spiral groove extends around the axial direction of the lens seat and is open near the first end of the lens seat, and an adhesive is injected into the at least one spiral groove to fix the outer ring surface of the press ring and the inner ring surface of the lens seat.
2. The lens module as claimed in claim 1, wherein the at least one groove is spaced apart from the pressing ring by a distance less than a length of the pressing ring.
3. The lens module as claimed in claim 1, wherein the at least one groove is spaced apart from the outer circumferential surface of the pressing ring by a distance greater than or equal to an axial length of the pressing ring, such that the at least one groove is connected to opposite sides of the pressing ring.
4. A lens module according to any one of claims 1 to 3, wherein the radial cross-section of the at least one groove is triangular and has a base with a pointed shape.
5. The lens module as claimed in any one of claims 1 to 3, wherein the at least one groove has a radial depth of between 2 microns and 300 microns.
6. A lens mount is characterized in that the lens mount is cylindrical and provided with an inner ring surface, the inner ring surface encloses a containing space for containing at least one optical element, two ends of the lens mount in the axial direction are respectively a first end and a second end, the inner ring surface close to the first end 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, the sealing section is provided with at least one spiral groove, the at least one spiral groove extends around the lens mount in the axial direction and is open close to the first end of the lens mount, and an adhesive is injected into the at least one spiral groove to fix the outer ring surface of the at least one optical element and the inner ring surface of the lens mount.
7. The lens holder of claim 6, wherein a distance of the at least one groove along the axial direction of the lens holder is smaller than a length of the at least one optical element outer circumferential surface along the axial direction of the lens holder.
8. The lens holder of claim 6, wherein a distance of the at least one groove along the axial direction of the lens holder is greater than or equal to a length of an outer circumferential surface of the at least one optical element along the axial direction of the lens holder, such that the at least one groove is connected to two opposite sides of the at least one optical element.
9. The lens holder as claimed in any one of claims 6 to 8, wherein the at least one groove has a triangular radial cross-section and a pointed bottom.
10. The lens holder of any one of claims 6 to 8, wherein a radial depth of the at least one groove is between 2 microns and 300 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921301796.9U CN210401809U (en) | 2019-08-12 | 2019-08-12 | Lens module and lens mount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921301796.9U CN210401809U (en) | 2019-08-12 | 2019-08-12 | Lens module and lens mount |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210401809U true CN210401809U (en) | 2020-04-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921301796.9U Active CN210401809U (en) | 2019-08-12 | 2019-08-12 | Lens module and lens mount |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210401809U (en) |
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2019
- 2019-08-12 CN CN201921301796.9U patent/CN210401809U/en active Active
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