CN217655343U - Refraction and reflection type optical lens structure - Google Patents
Refraction and reflection type optical lens structure Download PDFInfo
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- CN217655343U CN217655343U CN202221498504.7U CN202221498504U CN217655343U CN 217655343 U CN217655343 U CN 217655343U CN 202221498504 U CN202221498504 U CN 202221498504U CN 217655343 U CN217655343 U CN 217655343U
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Abstract
The utility model discloses a roll over anti-formula optical lens structure, a serial communication port, include: the lens comprises a first lens barrel, a second lens barrel, a catadioptric lens arranged between the first lens barrel and the second lens barrel and a lens group arranged in the second lens barrel; the periphery of second lens cone sets up the installation department with first lens cone complex, and the one side that is located the installation department and is close to the optical axis is equipped with the bellying that is higher than the installation department, and the outer end of the lens that turns over is fixed with the bellying through first glue layer, has an accommodation space between the outer end of first lens cone and the lens that turns over. The design of the structure is beneficial to the realization of the aligning technology, and the first layer of glue is directly cured by ultraviolet rays after the alignment of the catadioptric lens is finished. On one hand, the accommodating space can avoid interference of overflowed glue and the first lens barrel; on the other hand, the enough accommodating space can enable the first glue layer to wrap the outer side of the catadioptric lens, and therefore stability of temperature-humidity circulation reliability is facilitated.
Description
Technical Field
The utility model belongs to the optical lens field especially relates to a roll over anti-formula optical lens structure.
Background
In recent years, with the rapid development and iteration of smart phones, the camera of the mobile phone is used as an important component of the mobile phone, and the requirement of people on the imaging quality of the camera lens is higher and higher. At present, the mobile phone is mostly provided with large image plane, wide angle, long focus and other types of lenses, wherein the long focus type lens has long focal length and small visual angle, can shoot images larger than the wide angle lens and the large image plane lens at the same distance, can more effectively blur the background and highlight the main body, and the long focus lens is a better choice when shooting portrait portraits and close-ups.
The telephoto lens is mainly configured in the mobile phone in two ways, one is a periscopic telephoto lens, and the other is an upright telephoto lens. Although the periscopic telephoto lens can have larger focal length multiple, the size of the whole machine module is larger; the conventional vertical telephoto lens occupies a small overall size, but does not achieve a large focal length multiple. Therefore, a telephoto optical system employing a catadioptric form has been tried in a design of a lens of a cellular phone.
The mobile phone lens structure adopting the catadioptric optical system takes smaller overall size into consideration, and has larger focal length multiple. Catadioptric optical lens is because first piece lens external diameter is whole to be greater than other lenses, and the assembly methods that assembly methods were gone up conventionally and were adorned through flip-chip and both sides, but because first piece catadioptric lens is more sensitive, the higher influence imaging quality of tolerance of first piece lens is accumulated to the flip-chip mode, and the axiality tolerance of both sides is great when the shaping of both sides dress mode lens cone, and then influences imaging quality.
Therefore, it is desirable to design a lens mounting structure that can improve the imaging quality while ensuring the tolerance in mounting.
SUMMERY OF THE UTILITY MODEL
The application aims at providing a catadioptric optical lens structure, and the structure is favorable to the realization of aligning technique, and the tolerance improves the imaging quality in the regulation within range when guaranteeing the installation.
The application provides a refraction and reflection type optical lens structure, includes: the lens comprises a first lens barrel, a second lens barrel, a catadioptric lens arranged between the first lens barrel and the second lens barrel and a lens group arranged in the second lens barrel;
the periphery of the second lens cone is provided with a mounting part matched with the first lens cone, one side of the mounting part, which is close to the optical axis, is provided with a bulge part higher than the mounting part, the outer end of the catadioptric lens is fixed with the bulge part through a first glue layer, and an accommodating space is arranged between the first lens cone and the outer end of the catadioptric lens.
According to an embodiment provided by the application, the accommodating space is used for accommodating a first glue layer, and the first lens cone is bonded and cured with the outer end of the catadioptric lens through the first glue layer.
According to an embodiment provided by the present application, the catadioptric lens includes: a first transmissive working part, a first reflective working part, a second reflective working part, and a second transmissive working part; the first transmission working part is positioned in the front of the catadioptric lens and far away from the optical axis area, and the second transmission working part is positioned in the area near the optical axis of the rear part of the catadioptric lens; the first reflection working part is positioned in the area near the optical axis of the front part of the catadioptric lens, and the second reflection working part is positioned at the rear part of the catadioptric lens and is far away from the optical axis area.
According to an embodiment provided by the present application, the second reflective working portion and the second lens barrel are bonded and cured by a second glue layer.
According to an embodiment provided by the application, a first slope surface, a first glue containing surface, a second slope surface, a third slope surface and a second glue containing surface for containing the second glue layer are sequentially arranged at the corresponding positions of the second lens barrel and the second reflection working part towards the optical axis direction; wherein the third slope surface is steeper than the second slope surface.
According to an embodiment provided by the present application, a fastening end is disposed at a position of the periphery of the catadioptric lens facing the first transmissive working portion, and the first lens barrel has a fastening portion corresponding to the fastening end; the buckling part is not in contact with the buckling end, and a space allowance is formed between the buckling part and the buckling end.
According to an embodiment provided by the present application, the spatial margin is greater than 0.05mm along the optical axis direction, and is greater than 0.03mm perpendicular to the optical axis direction.
According to an embodiment provided by the present application, the mounting portion of the second barrel is bonded and cured with the first barrel through a third glue layer.
According to an embodiment provided by the present application, a concave surface is disposed on an outer side of the bonding portion of the first lens barrel and the second lens barrel, and the concave surface is an overflow area for accommodating excess glue of the third glue layer.
According to an embodiment provided by the present application, the first transmissive working part and the second transmissive working part are plated with antireflection films, and the first reflective working part and the second reflective working part are plated with reflective films.
According to an embodiment of the present disclosure, the lens assembly includes more than one lens arranged in order from an object side to an image side, and a spacer element is disposed between adjacent lenses.
According to an embodiment provided by the application, a pressing ring is arranged on the outer side of the lens closest to the image side, and the pressing ring and the second lens barrel are bonded and fixed through a fourth glue layer.
The utility model has the advantages that:
the structural design of this application is favorable to the realization of aligning technique, and first layer glue directly carries out the ultraviolet cure after the reflexive lens aligning is accomplished. On one hand, the accommodating space can avoid interference of overflowed glue and the first lens barrel; on the other hand, the enough accommodating space can enable the first glue layer to wrap the outer side of the catadioptric lens, and therefore stability of temperature-humidity circulation reliability is facilitated.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is an exploded view of the catadioptric optical lens structure of the present invention;
FIG. 2 is an isometric view of a catadioptric optical lens structure;
FIG. 3 is a cross-sectional view of a catadioptric optical lens structure;
fig. 4 is a cross-sectional view of a catadioptric lens.
In the figure, the position of the upper end of the main shaft,
1-a first barrel;
11-a fastening portion;
12-space allowance;
2-a second barrel;
21-a mounting portion;
22-a boss;
23-a first slope surface;
24-a first glue containing surface;
25-second slope;
26-third slope;
27-a second glue accommodating surface;
3-catadioptric lenses;
31 — a first transmissive working part;
32-a first reflective working portion;
33-a second reflective working portion;
34-a second transmissive working part;
35-a fastening end;
36-an anti-reflection film;
37-a reflective film;
4-a first glue layer;
5-a second glue layer;
6-third glue layer;
7-fourth glue layer;
8-lens group;
81-a spacer element;
and 9-pressing a ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only 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.
It should be noted that in this specification, the expressions first, second, third, etc. are used only to distinguish one feature from another, and do not represent any limitation on the features. Thus, the first lens discussed below may also be referred to as the second lens or the third lens without departing from the teachings of the present invention.
It will be further understood that the terms "comprises," "comprising," "has," "having," "includes" and/or "including," when used in this specification, specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof. Further, when a statement such as "at least one of" appears after a list of listed features, that the entire listed feature is modified rather than a single element of the list. Furthermore, when describing embodiments of the present application, the use of "may" mean "one or more embodiments of the present application. Also, the term "exemplary" is intended to refer to an example or illustration.
In the drawings, the thickness, size, and shape of the lens have been slightly exaggerated for convenience of explanation. In particular, the shapes of the spherical or aspherical surfaces shown in the drawings are shown by way of example. That is, the shape of the spherical surface or the aspherical surface is not limited to the shape of the spherical surface or the aspherical surface shown in the drawings. The figures are purely diagrammatic and not drawn to scale.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. Features, principles and other aspects of the present invention will be described in detail below with reference to the drawings and in conjunction with embodiments.
Exemplary embodiments
The present exemplary embodiment provides a catadioptric optical lens structure including: the lens comprises a first lens barrel 1, a second lens barrel 2, a catadioptric lens 3 arranged between the first lens barrel 1 and the second lens barrel 2 and a lens group 8 arranged in the second lens barrel 2; the periphery of the second lens cone 2 is provided with a mounting part 21 matched with the first lens cone 1, one side of the mounting part 21 close to the optical axis is provided with a bulge 22 higher than the mounting part 21, the outer end of the catadioptric lens 3 is fixed with the bulge 22 through a first glue layer 4, and an accommodating space is arranged between the first lens cone 1 and the outer end of the catadioptric lens 3. The accommodating space is used for accommodating a first glue layer 4, and the first lens barrel 1 and the outer end of the catadioptric lens 3 are bonded and cured through the first glue layer 4. The structure design is beneficial to the realization of the aligning technology, and the first layer of glue is directly cured by ultraviolet rays after the alignment of the catadioptric lens 3 is finished. On one hand, the accommodating space can avoid interference of overflowed glue and the first lens barrel 1; on the other hand, the sufficient accommodating space can enable the first glue layer 4 to wrap the outer side of the catadioptric lens 3, and therefore stability of temperature-humidity circulation reliability is facilitated.
In the present exemplary embodiment, the catadioptric lens 3 includes: a first transmissive working part 31, a first reflective working part 32, a second reflective working part 33, and a second transmissive working part 34; wherein the first transmission working part 31 is located at the front part of the catadioptric lens 3 and far away from the optical axis area, and the second transmission working part 34 is located at the optical axis near area of the rear part of the catadioptric lens 3; the first reflection working part 32 is located in the area near the optical axis of the front part of the catadioptric lens 3, and the second reflection working part 33 is located at the rear part of the catadioptric lens 3 and far away from the optical axis area.
In the present exemplary embodiment, the second reflective working portion 33 and the second barrel 2 are bonded and cured by a second glue layer. The transmissive working part is a light path projecting part and the reflective working part is a light path reflecting part, thereby realizing a telephoto characteristic. The second reflection working part 33 is bonded with the second lens barrel 2 and matched with the first glue layer 4, so that a bonding effect is better achieved.
In the present exemplary embodiment, the second barrel 2 is provided with a first slope 23, a first glue receiving surface 24, a second slope 25, a third slope 26, and a second glue receiving surface 27 in sequence facing the optical axis direction at a position corresponding to the second reflection working portion 33 for receiving the second glue layer. Glue has certain mobility, second reflection working portion 33 is itself the size less, in order to prevent that glue from flowing into the second projecting portion, guarantee glue bonding second lens cone 2 and second reflection working portion 33 simultaneously, glue can be stayed glue as far as possible not down-flow at first appearance face 24, when second lens cone 2 and second reflection working portion 33 assembly, first domatic 23 plays the cushioning effect, make partly glue stay at this position, increase bonding region, the domatic 25 of second plays the guide effect, guide glue to the optical axis direction, also play the regional effect of increase bonding. The steepness of the third slope surface 26 is greater than that of the second slope surface 25, the excess glue is guided by the third slope surface 26 to the second glue accommodating surface 27, the glue is prevented from flowing to the second transmission working portion 34 along the second reflection working portion 33 to affect the imaging effect, and the excess glue can be effectively accommodated by the second glue accommodating surface 27 if the glue is too much.
In the present exemplary embodiment, a fastening end 35 is disposed at a position facing the first transmissive working part 31 on the periphery of the catadioptric lens 3, and the first barrel 1 has a fastening part 11 corresponding to the fastening end 35; the fastening portion 11 is not in contact with the fastening end 35, and a space margin 12 is provided between the fastening portion 11 and the fastening end 35. The buckling end 35 is designed to shield the internal structure and the glue on one hand and ensure the appearance of the lens; on the other hand, the axial thickness of the buckling position of the first lens cone 1 is ensured to meet the filling requirement during forming. The design of the space allowance 12 avoids the interference problem of the first lens barrel 1 and the catadioptric lens 3 caused by deviation during assembly.
In the present exemplary embodiment, the spatial margin 12 is greater than 0.05mm in the optical axis direction and greater than 0.03mm perpendicular to the optical axis direction.
In the present exemplary embodiment, the mounting portion 21 of the second barrel 2 is bonded and cured to the first barrel 1 through the third glue layer 6.
In the present exemplary embodiment, the outside of the bonding portion of the first barrel 1 and the second barrel 2 has a concave surface, and the concave surface is an overflow area 13 for accommodating excess glue.
In the present exemplary embodiment, the first transmissive working part 31 and the second transmissive working part 34 are coated with an antireflection film 36, and the first reflective working part 32 and the second reflective working part 33 are coated with a reflective film 37. Antireflection coating 36 advantageously increases the transmission of light, resulting in lower ghost image energy from reflection. The reflecting film 37 reflects light rays to meet the optical path requirements of the catadioptric optical system.
In the present exemplary embodiment, the lens group 8 includes more than one lens 81 arranged in order from the object side to the image side along the optical axis, and a spacing element 82 is disposed between adjacent lens 81.
In the present exemplary embodiment, a pressing ring 9 is disposed on the outer side of the lens closest to the image side, and the pressing ring 9 and the second barrel 2 are fixed by bonding through a fourth glue layer 7.
However, it will be understood by those skilled in the art that the number of lenses constituting the lens group 8 in the catadioptric optical lens structure may be varied without departing from the technical solution as claimed in the present application to obtain the respective results and advantages described in the present specification. For example, although the four lenses are described as an example in the embodiment, the lens group 8 is not limited to include four lenses, and the lens group 8 may include other numbers of lenses if necessary. A spacing element 81 is arranged between each lens in the lens group 8, a pressing ring 9 is arranged behind the lens closest to the rear part, and the pressing ring 9 and the second lens barrel 2 are bonded and fixed through a fourth glue layer 7.
Specific embodiments of the catadioptric optical lens structure suitable for the above-described embodiments are further described below with reference to the drawings.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
As shown in fig. 1 to 4, the catadioptric optical lens structure of the present embodiment includes a first barrel 1, a second barrel 2, a catadioptric lens 3 disposed between the first barrel 1 and the second barrel 2, and a lens group 8 disposed in the second barrel 2; the periphery of the second lens cone 2 is provided with an installation part 21 matched with the first lens cone 1, one side of the installation part 21 close to the optical axis is provided with a protruding part 22 higher than the installation part 21, the outer end of the reverse lens 3 is fixed with the protruding part 22 through a first glue layer 4, and an accommodating space is arranged between the outer ends of the first lens cone 1 and the reverse lens 3 and used for accommodating the first glue layer 4.
Referring to fig. 4, the catadioptric lens 3 includes a first transmission working portion 31, a first reflection working portion 32, a second reflection working portion 33, and a second transmission working portion 34, wherein the first transmission working portion 31 is located at the front of the catadioptric lens 3 and far from the optical axis area, and the second transmission working portion 34 is located at the area near the optical axis of the rear of the catadioptric lens 3; on the contrary, the first reflective working portion 32 is located in the vicinity of the optical axis of the front portion of the catadioptric lens 3, and the second reflective working portion 33 is located in the rear portion of the catadioptric lens 3 and away from the optical axis region; the second reflection working part 33 and the second lens barrel 2 are bonded and cured through a second glue layer.
Preferably, the material of the catadioptric lens 3 is glass, and the first transmissive working part 31 is a plane. The first reflective working part 32, the second reflective working part 33, and the second transmissive working part 34 are aspheric. The first transmissive working part 31 and the second reflective area are connected directly by a rounded corner without a step difference between the first reflective working part 32 and the second transmissive working part 34.
More preferably, the first and second reflective working parts 32 and 33 are coated with antireflection coating 36, and the first and second reflective working parts 32 and 33 are coated with reflection coating 37.
As shown in fig. 3, the second barrel 2 is provided with a first slope 23, a first glue containing surface 24, a second slope 25, a third slope 26 and a second glue containing surface 27 in sequence towards the optical axis direction at a position corresponding to the second reflection working part 33, wherein the first slope 23, the first glue containing surface 24, the second slope 25, the third slope 26 and the second glue containing surface 27 are used for containing a second glue layer, the steepness of the third slope 26 is greater than that of the second slope 25, the redundant glue is guided to the second glue containing surface 27 by the third slope 26, and the glue is prevented from flowing to the second transmission working part 34 along the second reflection working part 33 to affect the imaging effect.
Referring to fig. 3, a buckling end 35 is disposed at a position of the periphery of the catadioptric lens 3 facing the first transmissive working portion 31, the first lens barrel 1 has a buckling portion 11 corresponding to the buckling end 35, wherein the buckling portion 11 is not in contact with the buckling end 35, the buckling portion 11 and the buckling end 35 have a space margin 12, and the space margin 12 is a space margin 12 with an optical axis direction greater than 0.05mm and a direction perpendicular to the optical axis direction greater than 0.03mm. The mounting part 21 of the second lens barrel 2 is bonded and cured with the first lens barrel 1 through the third glue layer 6, and the outside of the bonding part of the first lens barrel 1 and the second lens barrel 2 is provided with a concave surface which is an overflow area 13 for accommodating surplus glue.
In this embodiment, the first glue layer 4, the second glue layer, and the third glue layer 6 are all made of UV thermosetting glue, but other types of glue are not excluded from being used for bonding and fixing.
In the present embodiment, the lens group 8 is composed of 4 plastic lens groups 8, and a spacing element 81 is provided between adjacent lenses. Although four lenses are exemplified in the embodiment, the lens group 8 is not limited to include four lenses, and the lens group 8 may include other numbers of lenses if necessary. A spacing element 81 is arranged between each lens in the lens group 8, a pressing ring 9 is arranged behind the lens closest to the rear part (closest to the image side), and the pressing ring 9 and the second lens barrel 2 are bonded and fixed through a fourth glue layer 7.
When assembling the catadioptric lens 3, the drawing glue area that 2 front ends of second lens cone and the catadioptric lens 3 are connected has two places (first glue layer 4 and second glue layer promptly), the drawing glue area of being connected with first lens cone 1 has one place (third glue layer 6 promptly), first draw the UV thermosetting glue in the drawing glue area that the catadioptric lens 3 is connected during the connection, then will be folded the catadioptric lens 3 and place on its position and carry out the aligning with lower group, when transferring to the performance optimum position, use UV exposure lamp to expose fixedly. And then, drawing UV thermosetting adhesive on the adhesive drawing area connected with the first lens cone 1 to fix the first lens cone 1 to the lower group, heating and fixing, and finishing the lens assembly.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, improvements, equivalents, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (12)
1. A catadioptric optical lens structure comprising: the lens comprises a first lens barrel, a second lens barrel, a catadioptric lens arranged between the first lens barrel and the second lens barrel and a lens group arranged in the second lens barrel;
the periphery of second lens cone set up with first lens cone complex installation department is located one side that the installation department is close to the optical axis is equipped with the bellying that is higher than the installation department, roll over the outer end of anti-lens through first glue layer with the bellying is fixed, first lens cone with an accommodation space has between the outer end of anti-lens.
2. The catadioptric optical lens structure of claim 1, wherein the accommodating space is configured to accommodate a first glue layer, and the first lens barrel is bonded and cured with the outer end of the catadioptric lens through the first glue layer.
3. The catadioptric optical lens structure of claim 1, wherein the catadioptric lens comprises: a first transmissive working part, a first reflective working part, a second reflective working part, and a second transmissive working part; the first transmission working part is positioned in the front of the catadioptric lens and far away from the optical axis area, and the second transmission working part is positioned in the area near the optical axis of the rear part of the catadioptric lens; the first reflection working part is positioned in the area near the optical axis of the front part of the catadioptric lens, and the second reflection working part is positioned at the rear part of the catadioptric lens and is far away from the optical axis area.
4. The catadioptric optical lens structure of claim 3, the second reflective working portion and the second barrel are bonded and cured by a second glue layer.
5. The catadioptric optical lens structure of claim 4, wherein a first slope surface, a first glue containing surface, a second slope surface, a third slope surface and a second glue containing surface for containing the second glue layer are sequentially arranged at a position of the second lens barrel corresponding to the second reflection working part towards an optical axis direction; wherein the third slope surface is steeper than the second slope surface.
6. The catadioptric optical lens structure of claim 3, wherein a buckling end is disposed at a position of the periphery of the catadioptric lens facing the first transmissive working portion, and the first barrel has a buckling portion corresponding to the buckling end; the buckling part is not in contact with the buckling end, and a space allowance is formed between the buckling part and the buckling end.
7. The catadioptric optical lens structure of claim 6, wherein the spatial margin is greater than 0.05mm in an optical axis direction and greater than 0.03mm perpendicular to the optical axis direction.
8. The catadioptric optical lens structure of claim 1, wherein the mount portion of the second barrel is bonded and cured to the first barrel through a third glue layer.
9. The catadioptric optical lens structure of claim 8, wherein the first barrel and the second barrel are bonded to each other with a concave surface at the outer side, and the concave surface is an overflow area for accommodating excess glue of the third glue layer.
10. The structure of claim 3, wherein the first and second transmissive working parts are coated with antireflection coating, and the first and second reflective working parts are coated with reflective coating.
11. The structure of claim 1, wherein the lens assembly comprises at least one lens element arranged in order from an object side to an image side, and a spacer element is disposed between adjacent lens elements.
12. The catadioptric optical lens structure of claim 11, wherein a pressing ring is disposed on an outer side of the lens closest to the image side, and the pressing ring and the second barrel are fixed by a fourth glue layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221498504.7U CN217655343U (en) | 2022-06-16 | 2022-06-16 | Refraction and reflection type optical lens structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221498504.7U CN217655343U (en) | 2022-06-16 | 2022-06-16 | Refraction and reflection type optical lens structure |
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| CN217655343U true CN217655343U (en) | 2022-10-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117008277A (en) * | 2023-09-28 | 2023-11-07 | 荣耀终端有限公司 | Lens assembly, camera module and terminal device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117008277A (en) * | 2023-09-28 | 2023-11-07 | 荣耀终端有限公司 | Lens assembly, camera module and terminal device |
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