CN217133451U - Lens and decompression imaging lens - Google Patents

Abstract

The utility model provides a lens and decompression imaging lens, lens are suitable for decompression imaging lens, wherein decompression imaging lens further includes the lens cone, the lens set up in the lens cone, wherein the lens includes: the lens comprises a lens body and a gate groove formed in the lens body, wherein the gate groove is formed in the side edge of the lens body, so that when the lens body is fixed by the lens barrel, a gap which can be communicated is formed between the outer side of the lens body and the inner side of the lens barrel through the gate groove. The lens and the decompression imaging lens provided by the application are beneficial to balancing air pressure between the lenses and air pressure outside and air pressure in each air gap in the lens quickly, greatly reduces the influence of high temperature on the surface type and air gap change of the lenses, improves the stability of the decompression imaging lens at high temperature, and when the ambient temperature is reduced to the room temperature, the optical field curvature can be quickly restored to the original state, and the high-temperature timeliness of the decompression imaging lens is improved.

Description

Lens and decompression imaging lens

Technical Field

The utility model relates to an optical lens especially relates to a lens and decompression imaging lens.

Background

The pursuit of the mobile phone is extremely light and thin, and the heat dissipation capability is limited, so that the working environment temperature of the lens is sometimes at a high temperature. In addition, a baking process is often adopted in the assembly process of the optical lens and the camera module, and the optical performance of the lens can be kept stable at high temperature.

In the assembly process of the lens, in order to ensure that each part is assembled in place, overpressure assembly is usually adopted, so that a sealed environment is formed between the lenses, or space spaces which are not communicated with each other are formed at two sides of the lenses. When the temperature rises, the pressure difference between the air in the lens and the outside air is increased, and air pressure difference exists in each air gap in the lens, so that the lens surface type and the air gap change caused by the extrusion of the lens, and larger field curvature change is caused, thereby influencing the imaging quality. In addition, when the ambient temperature is reduced to room temperature, the time for restoring the field curvature to the original state is long, the timeliness is poor, and the use experience of the lens is influenced. Therefore, the pressure generated between the lenses inside the lens also affects the optical performance of the lens.

How to reduce the air pressure between the lenses at high temperature and the air pressure difference of each air gap, improve the reliability of the lens at high temperature, and improve the high-temperature timeliness of the lens becomes a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The present invention provides a lens and an image-eliminating lens, wherein the lens has at least one air channel, wherein the air channel is formed on the bearing surface of the lens for eliminating air pressure between the lenses, which is beneficial to eliminating air pressure difference between air gaps.

The utility model discloses a further advantage lies in providing a lens and defoaming and like the camera lens, wherein the air duct cooperation full circle point of lens is glued or non-full circle point, can realize the defoaming and like the elimination of the inside each air gap air pressure difference of camera lens, or the defoaming is like the elimination of camera lens inside and outside air pressure difference, greatly reduces the influence that air pressure increase changes lens face type and air gap between each lens under the high temperature, improves the stability of the optical property under the high temperature of defoaming like the camera lens.

The utility model discloses a further advantage lies in providing a lens and decompression look like camera lens, wherein when ambient temperature falls to the room temperature, air pressure and external air pressure between each lens, each air gap's in the camera lens air pressure can reach the balance sooner, and the optics field curvature can resume the original state sooner, improves the high temperature ageing of decompression look like camera lens.

According to an aspect of the utility model, can realize aforementioned purpose and other purposes and advantages the utility model discloses a lens is suitable for decompression to become like the camera lens, wherein it further includes the lens cone to become like the camera lens to decompress, the lens be set up in the lens cone, wherein the lens includes:

the lens comprises a lens body and a gate groove formed in the lens body, wherein the gate groove is formed in the side edge of the lens body, so that when the lens body is fixed by the lens barrel, a gap which can be communicated is formed between the outer side of the lens body and the inner side of the lens barrel through the gate groove.

According to an embodiment of the present invention, the lens further has at least one bearing surface and at least one air groove, wherein the bearing surface of the lens is formed on the light incident side and/or the light emitting side of the lens body, and the air groove is formed on the bearing surface of the lens to realize the air communication between the lenses of the lens.

According to the utility model discloses an embodiment, the air channel be for form in bear the face and have certain width a, wherein 0.1mm is ≤ a ≤ 1mm, and certain degree of depth b, wherein 0.005mm is ≤ b ≤ 0.02 mm's breach.

According to an embodiment of the present invention, the vent groove is located close to the gate groove and communicates with the gate groove.

According to the utility model discloses a another party's face, the utility model discloses a decompression is like camera lens is further provided, include:

a lens barrel; and

the lens barrel of any one of the above embodiments, wherein the lens barrel has an accommodating space, and the at least one lens is fixed in the accommodating space of the lens barrel by the lens barrel.

According to an embodiment of the present invention, the lens barrel further comprises at least one spacer, wherein the at least one spacer is disposed on the lens barrel, wherein the spacer is disposed between the lenses at intervals for spacing the two adjacent lenses.

According to the utility model discloses an embodiment, the quantity of space ring is a plurality of, wherein the space ring is arranged in the lens cone along the axial interval of lens cone, and the space ring external diameter is whole circle form, the space ring with the lens cone adopts clearance fit.

According to the utility model discloses an embodiment, the lens cone include the lens cone main part with form in lens shelves and spacer ring shelves of lens cone main part inboard, wherein the lens shelves with the spacer ring shelves are full circle form, and a plurality of lens shelves and spacer ring shelves structure set up along the axial interval of lens cone.

According to an embodiment of the present invention, the lens barrel further comprises a fixing glue layer disposed at an end of the lens barrel, and used for fixing the outermost lens to the lens barrel.

According to the utility model discloses an embodiment, fixed glue film is glued for the whole circle point or the structure that non-whole circle point was glued.

Further objects and advantages of the invention will be fully apparent from the ensuing description and drawings.

These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description and the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of a lens barrel according to a first preferred embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a lens of the lens barrel according to the first preferred embodiment of the present invention.

Fig. 3 is a schematic view of the lens structure according to the first preferred embodiment of the present invention, wherein the lens has a single-sided vent groove structure.

Fig. 4 is a cross-sectional view of the lens structure according to the above-described first preferred embodiment of the present invention.

Fig. 5 is a partially enlarged schematic view of the lens structure according to the first preferred embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a lens of the lens barrel according to the second preferred embodiment of the present invention.

Fig. 7 is a schematic view of the lens structure according to the second preferred embodiment of the present invention, wherein the lens has a single-sided vent groove structure.

Fig. 8 is a cross-sectional view of the lens structure according to the second preferred embodiment of the present invention.

Fig. 9 is a partially enlarged schematic view of the lens structure according to the second preferred embodiment of the present invention.

Fig. 10 is a schematic diagram of the full circle dispensing of the lens according to the above preferred embodiment of the present invention.

Fig. 11 is a schematic view of non-full circle dispensing of the lens according to the above preferred embodiment of the present invention.

Fig. 12 is a partial schematic view of the lens barrel according to the above preferred embodiment of the present invention, which includes a single lens structure.

Fig. 13 is a partial schematic view of the lens barrel according to the above preferred embodiment of the present invention, which includes two lens structures.

Fig. 14 is a partial schematic view of the lens barrel according to the above preferred embodiment of the present invention, which includes a plurality of the lens structures.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purpose of limitation.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

Referring to fig. 1 to 14 of the drawings of the present invention, a lens and a pressure-reducing imaging lens according to the present invention will be explained in the following description. The decompression imaging lens is suitable for camera modules, such as mobile phones, computers, tablet computers and the like. It is to be understood that the application scenario of the decompression imaging lens is herein merely by way of example and not by way of limitation. Decompression is like camera lens and is solved among the prior art problem of poor and camera lens high temperature ageing of mobile phone lens reliability under the high temperature.

As shown in fig. 1, the decompression imaging lens includes a lens barrel 10 and at least one lens 20 disposed on the lens barrel 10, wherein the lens barrel 10 has an accommodating space 101, and the at least one lens 20 is fixed in the accommodating space 101 of the lens barrel 10 by the lens barrel 10. It is understood that in the preferred embodiment of the present invention, the number of the lenses 20 of the decompression imaging lens may be one, two or more, wherein the number of the lenses 20 is only used as an example and is not limited herein.

Preferably, in the preferred embodiment of the present invention, the number of the lenses 20 is plural, and the lenses 20 are sequentially arranged in the accommodating space 101 of the lens barrel 10. It should be noted that, in the preferred embodiment of the present invention, the specific structure of each lens 20 is not identical, so as to satisfy the requirement of the pressure-reducing imaging lens for optical imaging performance.

As shown in fig. 2 to 5, the lens 20 according to the first preferred embodiment of the present invention is explained in the following description. The lens 20 includes a lens body 21 and a gate groove 22 formed in the lens body 21, wherein the gate groove 22 is formed in a side of the lens body 21. Preferably, in the preferred embodiment of the present invention, the lens 20 is a plastic lens, and the gate groove 22 is an inlet gate for forming the lens main body 21, that is, molten optical plastic enters the mold cavity from the gate groove 22 during lens molding, which is a process structure for plastic lens molding. The lens 20 further has at least one bearing surface 23 and at least one vent groove 24, wherein the bearing surface 23 of the lens 20 is formed on the light incident side and/or the light emergent side of the lens body 21, and the vent groove 24 is formed on the bearing surface 23 of the lens 20 to realize air communication between lenses. It will be appreciated that in the preferred embodiment of the present invention, the bearing surface 23 of the lens 20 is a flat surface that contacts and supports other components (such as the lens barrel 10).

Alternatively, in other optional embodiments of the present invention, the lens body 21 of the lens 20 may be implemented as a glass lens, wherein the gate groove 22 is a cut edge or a notch formed on the lens body 21.

In detail, the width direction of the gate groove 22 of the lens 20 is perpendicular to the Y axis of the lens 20, and the length direction thereof is perpendicular to the X axis. Preferably, in order to ensure that the lens does not interfere with the lens barrel during assembly, the width of the lens is smaller than the chord length corresponding to the outer diameter circle of the lens, and the length of the lens does not protrude out of the outer diameter circle of the lens. Therefore, after the lens is assembled, a gap for allowing gas to pass through exists between the outer side of the gate groove 22 and the inner side of the lens barrel 10.

The bearing surfaces 23 of the lenses 20 are used for contacting and supporting other components, the flatness of the bearing surfaces is below 2 μm, and in order to ensure that the components are assembled in place when the lenses 20 are assembled, an overpressure assembly mode is usually adopted, so that no gap can be formed between the bearing surfaces 23 which are contacted with each other, and therefore a sealed space is formed between the lenses 20, and air in the sealed space cannot be exhausted.

The vent groove 24 is a notch formed on the bearing surface 23 and having a certain width a (a is more than or equal to 0.1mm and less than or equal to 1mm) and a certain depth b (b is more than or equal to 0.005mm and less than or equal to 0.02 mm). Preferably, for facilitating quick exhaust, the vent groove 24 is positioned close to the gate groove 22, and the depth of the vent groove 24 is not more than 0.02mm, so that the lens strength is weakened when the vent groove is too deep, and stray light is easily generated; the vent channel 24 has a width of no more than 1mm, and too wide a width may result in an unstable lens after assembly. In order to avoid the stray light generated by the vent groove 24, in the preferred embodiment of the present invention, the vent groove 24 does not participate in bearing, and the surface extinction process can also be performed.

The lens body 21 further has a transparent area 201 and a non-transparent area 202 located outside the transparent area 201, light can pass through the transparent area 201 of the lens body 21, and the non-transparent area 202 of the lens body 21 is used for bearing. It is understood that, in the preferred embodiment of the present invention, the bearing surface 23 of the lens 20 is formed on the non-light-transmitting area 202 of the lens main body 21, and the vent groove 24 is located on the non-light-transmitting area 202 of the lens main body 21, so as to avoid affecting the imaging light.

It should be noted that, in the preferred embodiment of the present invention, the vent groove 24 is formed on the light incident side and/or the light emitting side of the lens body 21, that is, the vent hole may be opened on one surface, or both surfaces may be opened.

As shown in fig. 3 to 5, in the first preferred embodiment of the present invention, the ventilation groove 24 is formed on one side of the lens body 21, and when the lens 20 is assembled, the ventilation groove 24 of the lens 20 can eliminate air pressure difference between each air gap inside the decompression imaging lens or air pressure difference between the inside and the outside of the decompression imaging lens. Therefore, the vent groove 24 can greatly reduce the influence of air pressure increase among lenses on the change of lens surface types and air gaps at high temperature, and improve the stability of the optical performance of the decompression imaging lens at high temperature. In addition, it can be understood that when the ambient temperature is reduced to room temperature, the air pressure between the lenses 20 and the air pressure of the outside, and the air pressure of the air gaps in the lens can reach balance quickly, the optical curvature of field can be restored to the original state quickly, and the high-temperature timeliness of the decompression imaging lens is improved.

In the first preferred embodiment of the present invention, the lens 20 is a lens structure with a ventilation groove 24 on one side, wherein the supporting surface 23 of the lens 20 is located on the light incident side or the light emitting side of the lens body 21, and the ventilation groove 24 is formed on the supporting surface 23 of the lens 20 and extends from the supporting surface 23 to be recessed downward. Therefore, when the lens 20 is assembled to the lens barrel 10, and the position of the lens body 21 of the lens 20 is fixed, a gap allowing air to pass through is formed between the lens body 21 and the lens barrel 10 by the gate groove 22, and a gap is formed between the bearing surface 23 of the lens 20 and the lens barrel 10, the lens rail or the spacer rail by the vent groove 24, so that the light incident side and the light emergent side of the lens 20 are communicated with each other through the gap, the influence of air pressure at high temperature on the curvature of field of the lens can be effectively reduced, the stability of the optical performance of the decompression imaging lens at high temperature can be improved, and the high-temperature aging performance of the decompression imaging lens can be improved. It will be appreciated that in the preferred embodiment of the present invention, the vent groove 24 is a notch or groove formed in the bearing surface 23 of the lens 20.

Preferably, in this preferred embodiment of the present invention, the vent groove 24 of the lens 20 and the gate groove 22 of the lens 20 are located on the same side of the lens body 21, that is, the gap formed by the vent groove 24 and the gate groove 22 is communicated with each other, so as to communicate the space of the light incident side and the light emergent side of the lens 20.

As shown in fig. 6 to 9, in the first preferred embodiment of the present invention, the ventilation grooves 24 are formed on both sides of the lens body 21, and when the lens 20 is assembled, the ventilation grooves 24 of the lens 20 can eliminate air pressure differences of air gaps inside the decompression imaging lens or air pressure differences inside and outside the decompression imaging lens. Therefore, the vent groove 24 can greatly reduce the influence of air pressure increase among lenses on the change of lens surface types and air gaps at high temperature, and improve the stability of the optical performance of the decompression imaging lens at high temperature. It can be understood that when the ambient temperature is decreased to room temperature, the air pressure between the lenses 20 and the air pressure of the outside, and the air pressure of the air gaps in the lens can reach equilibrium relatively quickly, and the optical field curvature can be recovered to the original state relatively quickly, so that the high-temperature timeliness of the decompression imaging lens is improved.

In the second preferred embodiment of the present invention, the lens 20 is a lens structure with air grooves 24 on both sides, wherein the supporting surface 23 of the lens 20 is located on the light incident side and the light emitting side of the lens body 21, and the air grooves 24 are formed on the supporting surface 23 of the lens 20 and extend from the supporting surface 23 to be recessed downward. In short, in this preferred embodiment of the present invention, unlike the first preferred embodiment, the lens 20 is provided with a bearing surface 23a and a bearing surface 23b, wherein the bearing surface 23a is located on the light incident side of the lens body 21, and the bearing surface 23b is located on the light emergent side of the lens body 21, and wherein the vent groove 24 is formed on the bearing surface 23a and the bearing surface 23b of the lens 20 and is recessed from the bearing surface 23a and the bearing surface 23 b.

Therefore, when the lens 20 is assembled to the lens barrel 10, and the position of the lens body 21 of the lens 20 is fixed, a gap allowing air to pass through is formed between the lens body 21 and the lens barrel 10 by the gate groove 22, and a gap is formed between the bearing surface 23 of the lens 20 and the lens barrel 10, the lens rail or the spacer rail by the vent groove 24, so that the light incident side and the light emergent side of the lens 20 are communicated with each other through the gap, the influence of air pressure at high temperature on the curvature of field of the lens can be effectively reduced, the stability of the optical performance of the decompression imaging lens at high temperature can be improved, and the high-temperature aging performance of the decompression imaging lens can be improved.

As shown in fig. 1, the pressure-relief imaging lens further includes at least one spacer 30, wherein the at least one spacer 30 is disposed on the lens barrel 10, and wherein the spacer 30 is disposed between the two adjacent lenses 20 at intervals for spacing the two adjacent lenses 20. The lens barrel 10 comprises a lens barrel body 11, and a lens rail 12 and a spacer rail 13 which are formed on the inner side of the lens barrel body 11, wherein the lens rail 12 and the spacer rail 13 are in a full circle shape, and a plurality of structures of the lens rail 12 and the spacer rail 13 are arranged at intervals along the axial direction of the lens barrel.

It should be noted that, in the preferred embodiment of the present invention, the lens rail 12 and the spacer 13 of the lens barrel 10 are formed inside the lens barrel body 11 and extend inward from the lens barrel body 11 to form a structure for supporting or blocking the lens 20. It is understood that, in the preferred embodiment of the present invention, the lens rail 12 and the spacer 13 integrally extend inward from the barrel body 11.

In the preferred embodiment of the present invention, the number of the lenses 20 is plural, wherein the lenses 20 are arranged in the lens barrel 10 at intervals along the axial direction of the lens barrel 10. Preferably, the number of the space ring 30 is plural, wherein the space ring 30 is arranged in the lens barrel 10 at intervals along the axial direction of the lens barrel 10, the outer diameter of the space ring 30 is in a full circle shape, and the space ring 30 and the lens barrel 10 are in clearance fit.

The decompression imaging lens further comprises a fixing adhesive layer 40, wherein the fixing adhesive layer 40 is used for fixing the last part and the lens barrel 10 after the assembly of all parts of the lens is completed, and the parts of the lens are prevented from falling off in the use process. Contain above-mentioned lens the decompression is pressed like image camera lens and can reduce the influence that air pressure changed the camera lens field curvature under the high temperature effectively, has improved the stability of the optical property of decompression like image camera lens under the high temperature to and improve the high temperature ageing of decompression like image camera lens. In other words, in the preferred embodiment of the present invention, the fixing glue layer 40 is disposed at the end of the lens barrel 10, which is used to fix the outermost lens 20 to the lens barrel 10.

As shown in fig. 10 and 11, the fixing adhesive layer 40 can adopt a full circle dispensing manner or a non-full circle dispensing manner, wherein when the fixing adhesive layer 40 is a full circle dispensing manner, i.e., a closed space is formed in the lens, the pressure-relief imaging lens can eliminate air pressure difference of each air gap in the lens; when the adhesive layer 40 is non-full circle dispensing, that is, dispensing is not performed at the gate groove 22 of the last lens, the air in the lens is communicated with the outside, and the pressure difference between the inside and the outside of the lens can be eliminated by the pressure-eliminating imaging lens.

It is worth mentioning that in this preferred embodiment of the utility model, through lens 20 the air channel 24, the cooperation the whole circle point of solid glue layer 40 is glued or non-whole circle point, can realize the elimination of the inside each air gap air pressure difference of decompression image lens, or the elimination of the inside and outside air pressure difference of decompression image lens, greatly reduce the influence that air pressure increase changes lens face type and air gap between each lens under the high temperature, improve the stability of optical property under the high temperature of decompression image lens. In addition, when the ambient temperature is reduced to room temperature, the air pressure between the lenses and the air pressure of the outside and the air pressure of each air gap in the lens can quickly reach balance, the optical field curvature can quickly recover to the original state, and the high-temperature timeliness of the decompression imaging lens is improved.

It should be noted that, in the preferred embodiment of the present invention, the pressure-reducing imaging lens includes a plurality of lenses, wherein at least one lens unit is the lens 20. It will be appreciated that in the preferred embodiment of the present invention, other types of lenses may be included in the decompression imaging lens. As shown in fig. 12, one lens unit in the pressure-reducing imaging lens is the lens 20, wherein the lens 20 is a lens structure provided with a single-sided vent groove 24; as shown in fig. 13, two lens units of the pressure-reducing imaging lens are the lenses 20, one of the lens units 20 is a lens structure provided with a single-side vent groove 24, and the other lens is a structure provided with a double-side vent groove 24; as shown in fig. 14, the plurality of lens units of the decompression imaging lens are the lenses 20. It is understood that the number and mounting positions of the lenses 20 in the decompression imaging lens in the preferred embodiment of the present invention are merely exemplary and not limiting.

It will be understood by those skilled in the art that the embodiments of the present invention as described above and shown in the drawings are given by way of example only and are not limiting of the present invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments without departing from the principles, embodiments of the present invention may have any deformation or modification.

Claims (10)

1. A lens adapted to a decompression imaging lens, wherein the decompression imaging lens further comprises a lens barrel, the lens being disposed in the lens barrel, wherein the lens comprises:

the lens comprises a lens body and a gate groove formed in the lens body, wherein the gate groove is formed in the side edge of the lens body, so that when the lens body is fixed by the lens barrel, a gap which can be communicated is formed between the outer side of the lens body and the inner side of the lens barrel through the gate groove.

2. The lens of claim 1, wherein the lens further has at least one bearing surface formed on the light entrance side and/or light exit side of the lens body and at least one vent groove formed in the bearing surface of the lens to allow air communication between lenses of the lens.

3. The lens of claim 2, wherein the vent channel is a notch formed in the bearing surface and having a width a, wherein 0.1mm ≦ a ≦ 1mm, and a depth b, wherein 0.005mm ≦ b ≦ 0.02 mm.

4. The lens of claim 2, wherein the vent groove is located proximate to and in communication with the gate groove.

5. The pressure-reducing imaging lens is characterized by comprising:

a lens barrel; and

the lens according to at least one of claims 1 to 4, wherein the lens barrel has a receiving space, and the at least one lens is fixed in the receiving space of the lens barrel by the lens barrel.

6. The decompression imaging lens according to claim 5, further comprising at least one spacer, wherein the at least one spacer is disposed on the lens barrel, wherein the spacer is disposed at intervals between the lenses for spacing two adjacent lenses.

7. The decompression imaging lens according to claim 6, wherein the number of the spacer rings is plural, wherein the spacer rings are arranged in the lens barrel at intervals along the axial direction of the lens barrel, the outer diameter of the spacer rings is in a full circle shape, and the spacer rings and the lens barrel are in clearance fit.

8. The decompression imaging lens according to claim 5, wherein the lens barrel includes a barrel body, and a lens rail and a spacer rail formed inside the barrel body, wherein the lens rail and the spacer rail are in a full circle shape, and a plurality of the lens rail and the spacer rail are arranged at intervals in an axial direction of the lens barrel.

9. The pressure-reducing imaging lens according to claim 8, further comprising a fixing adhesive layer provided at an end of the lens barrel, which is used to fix the outermost lens to the lens barrel.

10. The pressure-reducing imaging lens as claimed in claim 9, wherein the fixing adhesive layer is a full-circle dispensing or non-full-circle dispensing structure.

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