CN216310443U

CN216310443U - Composite lens and eyewear

Info

Publication number: CN216310443U
Application number: CN202122149443.5U
Authority: CN
Inventors: 付泽宇; 付祖家; 王玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-04-15
Anticipated expiration: 2031-09-07

Abstract

The present invention provides a compound lens and an eyewear, wherein the compound lens comprises: the lens comprises a plurality of lenses, a plurality of fixing pieces and a plurality of fixing pieces, wherein the lenses are sequentially stacked and arranged, and each lens is set to be in a first shape; and the sealing element is arranged between the lenses, arranged along the first shape and used for sealing and connecting the lenses. According to the composite lens provided by the utility model, the sealing elements are used for sealing the lenses along the shapes of the lenses, so that the problems that the lens group in the traditional technology is poor in sealing effect and the imaging effect of the lens group is easily influenced by the sealing elements are solved on the basis of ensuring the sealing effect.

Description

Composite lens and eyewear

Technical Field

The utility model relates to the technical field of lenses, in particular to a composite lens and an eyewear.

Background

A compound lens is a lens formed of two or more single lenses. The single lens using a convex lens can also collect light, but in order to minimize aberration and obtain a well-balanced clear image, convex lenses and concave lenses of various forms and various optical glasses must be combined, and the concave-convex single lenses are separated or glued to form a composite lens suitable for various purposes. Composite lenses are also commonly used in ophthalmic prescriptions to correct a patient's vision, typically with a combination of corrective, non-corrective and auxiliary (functional) lenses. Corrective lenses are used to correct ametropia, such as positive sphere, negative sphere, cylinder, etc.; non-corrective lenses such as polarizers, dyed sheets, color-changing sheets, filters, brightness enhancement sheets, etc.; auxiliary (functional) such as multifocal, progressive, ring focus, defocus, prism, AR/VR lenses, etc. By selecting appropriate lenses for combination, a compound lens suitable for ophthalmic prescriptions can be formed. However, in the conventional technology, the sealing performance of the compound lens is poor, the service life is short, and the imaging of the lens may even be affected by the sealing technology of some compound lenses, which brings certain trouble to the use of users.

SUMMERY OF THE UTILITY MODEL

The utility model provides a compound lens, which is used for solving the problems that the lens group in the traditional technology has poor sealing effect and the imaging effect of the lens group is easily influenced by a sealing piece.

To solve the problems in the prior art, the present invention provides a compound lens, comprising:

the lens comprises a plurality of lenses, a plurality of fixing pieces and a plurality of fixing pieces, wherein the lenses are sequentially stacked and arranged, and each lens is set to be in a first shape; and the number of the first and second groups,

and the sealing element is arranged between the lenses and arranged along the first shape and is used for sealing and connecting the lenses.

According to the compound lens provided by the utility model, the lens comprises a first lens and a second lens, an accommodating cavity is formed between the first lens and the second lens, and the sealing member is arranged between the first lens and the second lens and used for sealing and connecting the first lens and the second lens.

According to the compound lens provided by the utility model, the first lens and the second lens have the same curvature, and the optical centers of the first lens and the second lens are overlapped; and/or the presence of a gas in the gas,

the first lens and the second lens have similar curvatures, and optical centers of the first lens and the second lens are overlapped.

According to the compound lens provided by the utility model, the sealing element comprises the first optical cement, and the first optical cement is coated between the first lens and the second lens along the first shape.

According to the compound lens provided by the utility model, the width d of the first optical cement satisfies the following relation:

0.5mm≤d≤3mm。

according to the compound lens provided by the utility model, the thickness h of the first optical cement satisfies the following relation:

0.2mm≤h＜2mm。

according to the composite lens provided by the utility model, the lens is provided with the rotary hole, and the rotary hole penetrates through the first lens and the second lens and is communicated with the accommodating cavity.

According to the composite lens provided by the utility model, the sealing element further comprises second optical cement arranged at the communication part of the rotary hole and the accommodating cavity, and the second optical cement is used for sealing the accommodating cavity.

According to the composite lens provided by the utility model, the first lens comprises a Fresnel lens, the Fresnel lens is provided with a first surface and a second surface, the first surface is set to be a Fresnel surface, and the first surface is arranged towards the accommodating cavity and is positioned in the accommodating cavity.

The present invention also provides an eyewear comprising:

a mounting frame; and the number of the first and second groups,

the compound lens is arranged on the mounting frame, and the compound lens is the compound lens as described in any one of the above items.

According to the eyewear provided by the utility model, the joint of the compound lens and the mounting frame is further provided with a third optical cement.

The sealing effect of the compound lens in the traditional technology is poor, and the imaging effect of the lens can be influenced by the sealing object due to the fact that more sealing objects are arranged on some compound lenses with good sealing effect. According to the composite lens provided by the utility model, the sealing elements are arranged among the lenses, and the sealing elements are arranged in the shape of the lenses, so that the sealing effect can be ensured under the condition of reducing the cost, and the interference on the imaging of the lenses is avoided.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 is a schematic cross-sectional view of a first embodiment of a compound lens provided by the present invention;

FIG. 2 is a schematic side view of the structure of FIG. 1;

FIG. 3 is a schematic cross-sectional view of a second embodiment of a compound lens provided by the present invention;

figure 4 is a schematic side view of a composite lens in an eyewear provided in accordance with the present invention.

Reference numerals:

1: a compound lens; 2: a lens; 3: a seal member;

4: a first lens; 5: a second lens; 6: an accommodating chamber;

7: hole turning; 8: a first optical cement; 9: a second optical cement;

10: a third optical cement; 11: a first side; 12: a second face.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The composite lens 1 and eyewear of the present invention are described below in conjunction with fig. 1-4.

The composite lens 1 used for the ophthalmic prescription in the prior art is poor in sealing performance, dust is easily accumulated in gaps among the lenses 2, the imaging effect of the lenses 2 is influenced, the service life of the lenses 2 is also influenced, and certain trouble is brought to the use of a user. In order to solve the above problem, the present invention provides a compound lens 1 including: a plurality of lenses 2, each lens 2 being stacked in sequence, each lens 2 being set to a first shape; and a sealing member 3 provided between the lenses 2 and along the first shape for sealing and connecting the lenses 2. The number of the lenses 2 may be selected from a plurality of lenses according to the requirement, and each lens 2 may be different types of lenses 2, or may be the same type of lenses 2, which is not limited in the present invention. In addition, the first shape is chosen according to the shape of the carrier of the lens 2, which is not limiting for the utility model. According to the compound lens 1 provided by the utility model, the sealing elements 3 are arranged between the lenses 2, and the sealing elements 3 are arranged in the shapes of the lenses 2, so that on one hand, the sealing effect can be ensured under the condition of reducing the cost, and on the other hand, the imaging of the lenses 2 is not interfered.

Specifically, referring to fig. 2, two lenses 2 are provided, which are a first lens 4 and a second lens 5, respectively, a containing cavity 6 is formed between the first lens 4 and the second lens 5, and the containing cavity 6 is generally filled with air or vacuum-treated. The sealing member 3 is provided between the first lens 4 and the second lens 5, and is used for sealing and connecting the first lens 4 and the second lens 5. It will be appreciated that the seal 3 is provided in the receiving chamber 6 and also acts as a seal for the receiving chamber 6.

In a first technical solution provided by the present invention, the first lens 4 and the second lens 5 have the same curvature, and the optical centers of the first lens 4 and the second lens 5 are overlapped; in a second aspect of the present invention, the first lens 4 and the second lens 5 have similar curvatures, and the optical centers of the first lens 4 and the second lens 5 are coincident with each other. By the arrangement, the two lenses are attached more tightly, so that sealing is facilitated; on the other hand, the imaging effect of the two lenses with the curvatures close to or the same as each other is better, and the imaging blurring or dislocation is not easy to occur.

The sealing member 3 has various arrangement forms, and in the technical scheme provided by the utility model, the sealing member 3 comprises the first optical cement 8, and the first optical cement 8 is coated between the first lens 4 and the second lens 5 along the first shape. It should be noted that the optical cement in the conventional art is generally coated on the entire accommodating cavity 6 to achieve a good sealing effect, but the optical cement easily affects the imaging effect of the center of the lens 2; there are also techniques for applying optical cement around the two lenses, which, although not affecting the imaging effect of the lens 2, is prone to peel off and fail, affecting the sealing effect. In this embodiment, the optical cement is coated along the shape of the lens 2, so that the lens has a good sealing effect on one hand, and the imaging effect of the lens 2 is not affected on the other hand.

It should be noted that, before the lens 2 is not cut into the first shape, the first optical glue 8 may be coated on the original lens 2 according to the first shape, and then the two lenses 2 are combined to complete the sealing, and then the cutting of the lens 2 is performed, so that the steps may be simplified, and the sealing efficiency may be effectively improved.

Further, in order to prevent the boundary of the optical cement from affecting the imaging effect of the lens 2, the width d of the first optical cement 8 satisfies the following relationship: d is more than or equal to 0.5mm and less than or equal to 3 mm. In this embodiment, please refer to fig. 1, d is set to 2mm, which is the width of the first optical glue 8 in the finished product of the compound lens 1, and when coating the first optical glue 8, the original coating width of the first optical glue 8 should be larger than 2mm in consideration of the material consumption of cutting. Further, the thickness h of the first optical glue 8 satisfies the following relationship: h is more than or equal to 0.2mm and less than 2 mm. In this embodiment, referring to fig. 2, h is required to be less than 2mm, and too thick optical glue may cause glue overflow, which affects the sealing quality and appearance, and a user may select a proper glue thickness within this range for sealing.

Furthermore, a rotating hole 7 is formed in the lens 2, and the rotating hole 7 penetrates through the first lens 4 and the second lens 5 and is communicated with the accommodating cavity 6. It should be noted that the rotation hole 7 is convenient for installing the lens 2, but since the rotation hole 7 penetrates through the accommodating cavity 6 in a sealed state, in the technical solution provided by the present invention, the sealing member 3 further includes a second optical cement 9 disposed at a communication position between the rotation hole 7 and the accommodating cavity 6, and the second optical cement 9 is used for sealing the accommodating cavity 6. By sealing the second optical cement 9, a good sealing effect of the first lens 4 and the second lens 5 can be ensured.

Referring to fig. 1-2, in the first embodiment of the present invention, the first lens element 4 and the second lens element 5 are both planar lens elements, and the lens surfaces thereof are generally a complete plane, in which state, the attaching manner of the first lens element 4 and the second lens element 5 is optional. In a second embodiment of the present invention, referring to fig. 3, the first lens 4 is a fresnel lens, the fresnel lens has a first surface 11 and a second surface 12, the first surface 11 is a fresnel surface, and the first surface 11 is disposed toward the accommodating cavity 6 and located in the accommodating cavity 6. It will be appreciated that when the lens selected comprises a fresnel-type lens, the fresnel working surface should be oriented towards the receiving cavity 6 and be one of the boundaries of the receiving cavity 6 to avoid the problem of debris adhering between the fresnel grooves and wearing the grooves, thereby obscuring the view of the lens and degrading the visual quality. Of course, the lens with other shaped lens surface similar to the fresnel lens may also be sealed in the same way as the fresnel lens, and the utility model is not limited thereto.

The present invention also provides an eyewear comprising: a mounting frame; and the compound lens 1 is arranged on the mounting frame. The mounting rack can be selected according to the requirements of users, and generally can be a spectacle frame and the like. It should be noted that, during the processing of the lens 2, the error may cause the loose installation between the compound lens 1 and the mounting frame; or the size of the composite lens 1 is different from that of the mounting rack due to the design tolerance of the mounting rack. Referring to fig. 3, in the technical solution provided by the present invention, a third optical cement is further disposed at a joint between the composite lens 1 and the mounting frame, the third optical cement plays a role in material increase of the composite lens 1, and the dried third optical cement can assist in increasing a boundary of the composite lens 1, so that the composite lens is tightly attached to the mounting frame. In addition, according to the installation manner of the installation frame or other installation carriers, an installation groove or the like may be selectively opened at the edge of the compound lens 1 to match the installation, which is not limited in the present invention. Since the form of the eyewear is various and the main point of the utility model is the compound lens 1, further description of the other structures of the eyewear will not be given.

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

Claims

1. A compound lens, comprising:

2. The compound lens of claim 1, wherein the optic comprises a first lens and a second lens, a receiving cavity is formed between the first lens and the second lens, and the sealing member is disposed between the first lens and the second lens for sealing and connecting the first lens and the second lens.

3. The compound lens of claim 2, wherein the first and second lenses have the same curvature and the optical centers of the first and second lenses are coincident; and/or the presence of a gas in the gas,

4. The compound lens of claim 2, wherein the seal comprises a first optical glue applied between the first lens and the second lens along the first shape.

5. The compound lens of claim 4, wherein the width d of the first optical glue satisfies the following relationship:

0.5mm≤d≤3mm。

6. the compound lens of claim 4, wherein the thickness h of the first optical glue satisfies the following relationship:

0.2mm≤h＜2mm。

7. the compound lens of claim 2, wherein a rotation hole is formed in the lens, and the rotation hole is disposed through the first lens and the second lens and communicates with the accommodating cavity.

8. The compound lens of claim 7, wherein the sealing member further comprises a second optical adhesive disposed at a position where the rotation hole communicates with the accommodation cavity, the second optical adhesive being used for sealing the accommodation cavity.

9. The compound lens of claim 2, wherein the first lens comprises a fresnel lens having a first surface and a second surface, the first surface being a fresnel surface, the first surface being disposed toward the receiving cavity and being located in the receiving cavity.

10. An eyewear, comprising:

a mounting frame; and the number of the first and second groups,

a compound lens disposed on the mounting frame, the compound lens being as claimed in any one of claims 1 to 9.

11. An eyewear according to claim 10, wherein a third optical glue is provided at the junction of the compound lens and the mounting.