CN220894627U

CN220894627U - Optical lens device

Info

Publication number: CN220894627U
Application number: CN202322836313.8U
Authority: CN
Inventors: 杨文华; 李坤; 吴旭东; 杨金辉
Original assignee: Ningbo Hualing Optical Technology Co ltd
Current assignee: Ningbo Hualing Optical Technology Co ltd
Priority date: 2023-10-23
Filing date: 2023-10-23
Publication date: 2024-05-03
Anticipated expiration: 2033-10-23

Abstract

The utility model discloses an optical lens device, comprising: the lens comprises a lens barrel, a lens and a heating film, wherein a wire is arranged in the lens barrel, and a conductive contact is arranged on the wire; the lens is arranged on the lens cone; the heating film is arranged at the position where the lens is attached to the lens barrel, and the heating film is suitable for heating the lens; the heating film is provided with a terminal adapted to be electrically connected to the conductive contact. The utility model can integrate the heating film and the lens, and directly heat the lens to remove fog and frost, and has the advantages of simple manufacture and good heating effect.

Description

Optical lens device

Technical Field

The utility model relates to an optical lens device, and belongs to the technical field of optical lenses.

Background

Currently, an optical lens can help to provide image display and improve imaging effects. Plays a great role in different fields.

However, the surface of the optical lens is easily affected by various environmental weather, and when the external temperature changes relatively, water mist is easily generated on the surface of the optical lens to influence the imaging display of the optical lens. The existing heating optical lens is generally provided with a heating device inside the lens barrel, and is electrified and heated through a conductive element to be transferred to the lens, so that the defogging and defrosting effects are achieved.

Aiming at the defect that the optical lens is easily affected by temperature change, the prior solution is to design a heating device inside, and the internal heating is mainly composed of heating elements such as a heating film and an internal conductive device. Generally, more heating is arranged in a plurality of lenses, the temperature is transferred to the surface lenses of the optical lens through heat transfer, the design of the internal heating components is complex, a conductive structure is required to be designed, the heating components are arranged in a plurality of structures, the heat transfer loss is relatively more, the process is more complicated, and the process difficulty is increased.

For example, chinese patent CN107703702a discloses an image pickup module with defrosting and demisting functions, which indirectly heats the first lens through a heating device, and this way has a large loss of heat transfer, a complex process, and increased manufacturing difficulty.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide an optical lens device which can integrate a heating film with a lens and directly heat the lens to defog and defrost the lens, and has the advantages of simple manufacture and good heating effect.

In order to solve the technical problems, the technical scheme of the utility model is as follows: an optical lens apparatus comprising:

the lens barrel is internally provided with a wire, and the wire is provided with a conductive contact;

A lens disposed on the lens barrel;

The heating film is arranged at the position of the lens, which is attached to the lens barrel, and is suitable for heating the lens;

the heating film is provided with a terminal adapted to be electrically connected to the conductive contact.

Further, the terminal of the heating film comprises a positive electrode interface, and the positive electrode interface is electrically connected with the corresponding lead through the corresponding conductive contact.

Further, the terminal of the heating film further comprises a negative electrode interface, and the negative electrode interface is electrically connected with the corresponding lead through the corresponding conductive contact.

Further, in order to enable the lens to be in matched contact with the conductive contact, a reserved groove corresponding to the wiring end of the heating film is formed in the lens;

corresponding wiring terminals of the heating film are arranged in the reserved groove;

The conductive contacts extend into the corresponding reserved grooves and are electrically connected with the wiring ends of the corresponding heating films.

Further, in order to achieve high-precision matching between the lens and the lens barrel, the lens barrel is provided with a clamping protrusion corresponding to the conductive contact, the conductive contact is arranged in the clamping protrusion, and the clamping protrusion is embedded in a corresponding reserved groove.

Further, in order to better electrically connect the wiring end of the heating film with the conductive contact, a conductive adhesive is arranged in the reserved groove, the conductive adhesive is filled between the wiring end of the heating film and the conductive contact, and the conductive adhesive is electrically connected with the wiring end of the heating film and the conductive contact.

Further, the heating film is in an annular structure with two unconnected ends along the periphery of the lens, and the reserved groove is arranged at the end part of the annular structure.

Further, in order to fix the lens on the lens barrel and isolate vapor in the lens barrel, the lens and the lens barrel are in fit connection through the fixing glue.

Further, in order to cover the lens with the heating film without affecting the lens, the heating film is provided in a ring shape with both ends not connected along the outer circumference of the lens.

Further, the heating film is of a film layer structure, and the heating film is plated on the part of the lens, which is attached to the lens barrel.

By adopting the technical scheme, the utility model has the following beneficial effects:

In the utility model, firstly, a circle of open-loop heating film is plated on the position of the lens attached to the lens barrel, meanwhile, two wires are embedded in the lens barrel and lead out conductive contacts, the conductive contacts are electrically connected with the wires and the wiring ends of the heating film, the wires are electrified, the heating film is directly used for heating and raising the temperature in the lens to transfer the temperature to the surface of the lens to remove water mist, the heating film and the lens form a whole, and the heating and defogging effects on the lens are more direct.

In addition, the reserved groove is arranged on the lens to fill the conductive adhesive so as to realize better electric connection between the wiring end of the heating film and the conductive contact, the clamping protrusion corresponding to the conductive contact on the lens barrel is embedded with the reserved groove, and meanwhile, the lens and the lens barrel are bonded in a sealing closed loop through the fixed adhesive, so that water vapor can be well isolated inside the lens barrel, and the lens can not be fogged inside.

The design for directly heating the inside of the lens has a simple structure, does not need to design conductive elements with more processes in the lens barrel, can reduce the complexity of procedures, saves the production time and the production cost, and simultaneously keeps a good heating effect. Meanwhile, the internal heating is directly applied to the lens, so that heat loss is reduced, and heat transfer efficiency can be improved. In addition, if the lens module is subjected to some severe shaking during use, the design of the lens module with more complicated internal design and more internal heating mode may suffer from a certain influence compared with other internal designs. In contrast, the internal heating mode of the utility model has less complex design of the inside of the lens barrel, more available space and less influence on external abnormality, and relatively prolongs the service life of the lens barrel.

Drawings

FIG. 1 is a schematic perspective view of an optical lens apparatus according to the present utility model;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a schematic diagram showing a perspective structure of an optical lens device according to the present utility model;

fig. 4 is a schematic view of a lens barrel of the optical lens device according to the present utility model in half section;

Fig. 5 is a schematic perspective view of a lens and a heating film of the optical lens device of the present utility model.

Detailed Description

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments that are illustrated in the appended drawings.

As shown in fig. 1 to 5, an optical lens apparatus includes:

the lens barrel 100, there are conductors 110 in the lens barrel 100, there are conductive contacts 120 on the end of the conductor 110;

A lens 200, the lens 200 being disposed on the lens barrel 100;

A heating film 300, wherein the heating film 300 is arranged on the position of the lens 200, which is attached to the lens barrel 100, and the heating film 300 is suitable for heating the lens 200;

Heating film 300 is provided with terminals adapted to be electrically connected to conductive contacts 120.

In this embodiment, as shown in fig. 1 and 4, a circle of heating film is directly plated on the surface of the lens 200 by PVD, the terminal of the heating film is electrically connected with the wire 110 through the conductive contact 120, the wire 110 is electrified, the heating film 300 heats the lens 200 to perform defogging and defrosting functions, the wire 110 is embedded in the lens barrel 100, penetrates from the lower side of the lens barrel 100 to the mounting position of the lens barrel 100 and the lens 200, and the wire 110 is embedded in the lens barrel 100 to perform the function of protecting the wire 110.

Specifically, as shown in fig. 1-4, the terminal of the heating film 300 includes a positive electrode interface 310, and the positive electrode interface 310 is electrically connected to the conductive wire 110 through the conductive contact 120.

Specifically, as shown in fig. 1-4, the terminal of the heating film 300 further includes a negative electrode interface 320, and the negative electrode interface 320 is electrically connected to the conductive wire 110 through the conductive contact 120.

Specifically, as shown in fig. 2 and 5, a preformed groove 330 corresponding to the terminal of the heating film 300 is provided on the lens 200;

the corresponding terminals of the heating film 300 are placed in the reserve grooves 330;

The conductive contacts 120 extend into the corresponding pre-grooves 330 to electrically connect with the terminals of the corresponding heating films.

Specifically, as shown in fig. 1-2, the lens barrel 100 is provided with a clamping protrusion corresponding to the conductive contact 120, the conductive contact 120 is arranged in the clamping protrusion, and the clamping protrusion is embedded in the corresponding reserved groove 330.

Specifically, as shown in fig. 2 and 5, the pre-groove 330 is provided therein with conductive paste filled between the terminal of the heating film 300 and the conductive contact 120, and the conductive paste is electrically connected with the terminal of the heating film 300 and the conductive contact 120.

Specifically, as shown in fig. 2 and 5, the heating film 300 has a ring-shaped structure with both ends not connected along the outer circumference of the lens 200,

The pregroove 330 is provided at an end of the annular structure.

Specifically, as shown in fig. 1 to 3, the lens 200 is attached to the lens barrel 100 by a fixing adhesive 220.

In this embodiment, as shown in fig. 1-3, the clamping protrusion corresponding to the conductive contact 120 on the lens barrel 100 is embedded into the reserved groove 330, and meanwhile, the lens 200 and the lens barrel 100 are sealed and closed-loop bonded through the fixing adhesive 220, so that the inside of the lens barrel 100 can be well insulated from moisture, and no fogging of the inside of the lens 200 is caused.

Specifically, as shown in fig. 2 and 5, the heating film 300 is provided in a ring shape with both ends unconnected along the outer circumference of the lens 200. Specifically, as shown in fig. 1-2 and fig. 5, the heating film 300 has a film layer structure, and the heating film 300 is plated on the portion of the lens 200 that is attached to the lens barrel 100.

In this embodiment, as shown in fig. 2 and 5, the heating film 300 is formed integrally with the lens 200 by magnetron sputtering plating.

In this embodiment, as shown in fig. 1-2 and 4-5, the internal heating mode of the lens 200 of the present utility model is to plate a ring-shaped heating film 300 with two unconnected ends by PVD coating at a distance of about 5mm from the peripheral edge of the lens 200, and then design a pre-groove 330 at two ends of the heating film 300. The portion of the conductive wire 110 extends from the inside of the lens barrel 100 to be electrically connected with the conductive contact 120, the conductive wire 110 is electrified, the heating film 300 heats up and transfers the temperature to the lens 200, so as to achieve the defogging effect, improve the imaging performance of the lens 200, improve the space utilization inside the lens barrel 100, reduce heat loss by direct heat conduction, and facilitate heating.

As shown in fig. 1-5, the present embodiment provides a manufacturing process of an optical lens device, which mainly includes the following steps:

1. Preparing a lens 200, a manufacturing mold of the lens barrel 100, and two leads 110;

2. The design of an open-loop heating film 300 is designed on the drawing, two ends of the position of the heating film 300 reserved on the surface of the lens 200 are respectively polished to form a reserved groove 330, and the surface of the lens 200 and the reserved groove 330 are plated with a ring of the open-loop heating film 300 shown in the figure 5 in a PVD mode for heating;

3. Designing a die of the shape of the lens barrel 100, reserving a wire 110 position in the die, manufacturing the lens barrel 100 by casting and the like, embedding the wire 110 into the reserved wire 110 position in the lens barrel 100, leading out the wire 110 by the lens barrel 100, and reserving two conductive contacts 120 electrically connected with the wire 110 on the top end, wherein the manufactured lens barrel 100 and a sectional view of the lens barrel 100 are shown in fig. 4;

4. The reserved grooves 330 at the two end points of the heating film 300 in the lens 200 are aligned with the two conductive contacts 120 at the top end of the lens barrel 100, a circle of fixing glue 220 is firstly dispensed on the surface of the heating film 300 for reinforcing the fixing of the lens 200 and the lens barrel, then the reserved grooves 330 on the inner surface of the lens 200 are coated with the conductive glue, the lens 200 is attached to the lens barrel 100, the conductive contacts 120 of the lens barrel 100 are embedded into the reserved grooves 330 of the lens 200, and the conductive contacts 120 are connected with the wiring ends of the heating film 300 through the conductive glue to form a heating circuit;

5. the lead 110 is electrified, the heating film 300 heats up after the electrification to transfer the heat to the lens 200, and the water mist on the surface of the lens 200 is removed.

The technical problems, technical solutions and advantageous effects solved by the present utility model have been further described in detail in the above-described embodiments, and it should be understood that the above-described embodiments are only illustrative of the present utility model and are not intended to limit the present utility model, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. An optical lens apparatus, comprising:

A lens barrel (100), wherein a wire (110) is arranged in the lens barrel (100), and the wire (110) is provided with a conductive contact (120);

a lens (200), the lens (200) being disposed on the lens barrel (100);

A heating film (300), wherein the heating film (300) is arranged on a part of the lens (200) attached to the lens barrel (100), and the heating film (300) is suitable for heating the lens (200);

The end of the heating film (300) is provided with a terminal adapted to be electrically connected with the conductive contact (120).

2. The optical lens apparatus of claim 1, wherein,

The terminal of the heating film (300) comprises a positive electrode interface (310), and the positive electrode interface (310) is electrically connected with a corresponding wire (110) through a corresponding conductive contact (120).

3. The optical lens apparatus of claim 1, wherein,

The terminal of the heating film (300) further comprises a negative electrode interface (320), and the negative electrode interface (320) is electrically connected with the corresponding wire (110) through the corresponding conductive contact (120).

4. The optical lens apparatus of claim 1, wherein,

A reserved groove (330) corresponding to the wiring end of the heating film (300) is formed in the lens (200);

corresponding terminals of the heating film (300) are arranged in the reserved groove (330);

The conductive contacts (120) extend into the corresponding reserved grooves (330) and are electrically connected with the wiring ends of the corresponding heating films.

5. The optical lens apparatus of claim 4, wherein,

The lens barrel (100) is provided with a clamping protrusion corresponding to the conductive contact (120), the conductive contact (120) is arranged in the clamping protrusion, and the clamping protrusion is embedded in a corresponding reserved groove (330).

6. The optical lens apparatus of claim 4, wherein,

The reserved groove (330) is internally provided with conductive adhesive, the conductive adhesive is filled between the wiring end of the heating film (300) and the conductive contact (120), and the conductive adhesive is electrically connected with the wiring end of the heating film (300) and the conductive contact (120).

7. The optical lens apparatus of claim 4, wherein,

The heating film (300) is of an annular structure with two unconnected ends along the periphery of the lens (200), and the reserved groove (330) is arranged at the end part of the annular structure.

8. The optical lens apparatus of claim 4, wherein,

The lens (200) is attached to the lens barrel (100) through a fixing adhesive (220).

9. The optical lens apparatus of claim 1, wherein,

The heating film (300) is arranged along the periphery of the lens (200) in a ring shape with two unconnected ends.

10. The optical lens apparatus of claim 1, wherein,

The heating film (300) is of a film layer structure, and the heating film (300) is plated on the part of the lens (200) attached to the lens barrel (100).