CN113219613A - Lens, image capturing module and electronic equipment - Google Patents
Lens, image capturing module and electronic equipment Download PDFInfo
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- CN113219613A CN113219613A CN202110405570.9A CN202110405570A CN113219613A CN 113219613 A CN113219613 A CN 113219613A CN 202110405570 A CN202110405570 A CN 202110405570A CN 113219613 A CN113219613 A CN 113219613A
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- shielding sheet
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- peripheral surface
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
The invention relates to a lens, an image capturing module and an electronic device. The lens comprises a first lens, a second lens and a third lens, wherein the first lens comprises a lens part and a fixing part extending from the edge of the lens part to the third lens, the fixing part is abutted to the third lens, the first lens and the third lens are enclosed to form an accommodating cavity, the second lens is fixed in the accommodating cavity, and the peripheral surface of the second lens is abutted to the inner side surface of the fixing part. Above-mentioned lens subassembly camera lens, the second lens is not always to first lens off-centre, can promote the equipment precision of lens subassembly camera lens, and then satisfies high imaging quality's requirement.
Description
Technical Field
The present invention relates to a lens assembly, and more particularly, to a lens assembly, an image capturing module and an electronic device.
Background
With the development of the camera technology, the imaging quality of the camera is more and more required by the market. The structure of each subassembly of camera is deciding camera inside lens equipment precision, has vital effect to image quality, therefore the inner structure of camera need constantly optimize to promote the equipment precision of camera lens, satisfy high image quality's requirement. However, the current camera assembly has too large accumulated tolerance, which results in insufficient assembly precision of the lens and difficulty in meeting the requirement of high imaging quality.
Disclosure of Invention
Accordingly, it is desirable to provide a lens, an image capturing module and an electronic device for solving the problem of insufficient assembling precision of the lens.
A lens comprises a first lens, a second lens and a third lens which are sequentially arranged along an optical axis direction, wherein the first lens comprises a lens part and a fixing part extending from the edge of the lens part to the third lens, the fixing part is abutted to the third lens, the first lens and the third lens are enclosed to form an accommodating cavity, the second lens is fixed in the accommodating cavity, and the outer peripheral surface of the second lens is abutted to the inner side surface of the fixing part.
In the lens, the fixing part is arranged in the axial direction of the second lens, the inner side surface of the fixing part is abutted to the outer peripheral surface of the second lens, and the fixing part can fix the second lens in the direction perpendicular to the optical axis, so that the second lens is superposed with the main optical axis of the first lens. From this, in the assembling process, the accumulative total tolerance that produces has been reduced to first lens and third lens direct butt in the optical axis direction, and the second lens is avoided with the lens cone direct contact of low roughness, utilizes the high roughness's of lens characteristic, makes the difficult first lens eccentricity relatively of second lens, can promote the equipment precision of camera lens, and then satisfies high imaging quality's requirement.
In one embodiment, the lens further includes a first light-shielding sheet and a second light-shielding sheet, the first light-shielding sheet is disposed between the lens portion and the second lens, two sides of the first light-shielding sheet abut against the outer edge of the lens portion and the second lens, respectively, the second light-shielding sheet is disposed between the second lens and the third lens, and two sides of the second light-shielding sheet abut against the second lens and the third lens, respectively. Therefore, the relative positions of the first lens, the second lens and the third lens can be adjusted by adjusting the thicknesses of the first light-shielding sheet and the second light-shielding sheet, so that the MTF field curvature of the lens is adjusted, and the imaging quality of the lens is improved.
In one embodiment, in a direction in which the first lens faces the third lens along the optical axis, a radial dimension of an inner side surface of the fixing portion gradually increases, and a shape of an outer peripheral surface of the second lens is adapted to a shape of the inner side surface of the fixing portion. Therefore, the second lens can enter the accommodating cavity conveniently.
In one embodiment, the second optic is spaced from the lens portion. The second lens and the lens part are spaced, the number of contact surfaces between the second lens and the first lens can be reduced, and therefore the production of the accumulated tolerance of the assembly is reduced, and the assembly precision of the lens is improved.
In one embodiment, the inner side surface and the outer peripheral surface are disposed parallel to the optical axis. Therefore, the inner side surface has stronger limiting effect on the second lens, and the second lens is less prone to eccentricity relative to the first lens.
In one embodiment, the second lens has a position-limiting surface facing the lens portion, and the position-limiting surface abuts against the outer edge of the lens portion. The first lens is favorable for limiting the second lens in the axial direction.
In one embodiment, the second lens further includes a transition surface connecting the limiting surface and the outer peripheral surface, the transition surface is inclined to the optical axis, and the transition surface and the fixing portion are spaced from each other. The transition surface and the fixing part are mutually spaced, so that burrs at the outer edge of the second lens can be removed, the contact area between the first lens and the second lens is reduced, and the accumulative tolerance of lens assembly is further reduced.
In one embodiment, the lens further includes a second light shielding sheet, an edge of the second lens extends towards the third lens to form a step portion, the second light shielding sheet is disposed on one side of the second lens facing the third lens and abuts against an inner side of the step portion, and the step portion abuts against the third lens. The second lens passes through step portion butt third lens, can avoid the second lens to shield the condition that tolerance influences camera lens equipment precision in the totalizing of second lens and third lens, can also carry on spacingly to the second lens, prevents that the second lens from shielding the skew of piece.
An image capturing module includes a light sensing element and the lens barrel of any of the above embodiments, wherein the light sensing element is disposed at an image side of the lens barrel. Adopt above-mentioned camera lens in getting for instance the module, the camera lens equipment precision is high, can satisfy high imaging quality's requirement.
An electronic device comprises a shell and the image capturing module, wherein the image capturing module is arranged on the shell. The lens is adopted in the electronic equipment, the assembling precision of the lens is high, and the requirement of high imaging quality can be met.
Drawings
FIG. 1 is a schematic view of a lens assembly according to some embodiments of the present disclosure;
FIG. 2 is a schematic structural diagram of a lens barrel according to another embodiment of the present application;
FIG. 3 is a schematic view of a lens assembly according to still further embodiments of the present disclosure;
FIG. 4 is a schematic view of an image capturing module according to some embodiments of the present disclosure;
FIG. 5 is a schematic view of an electronic device in some embodiments of the present application.
100, a lens; 110. an optical axis; 120. a first lens; 121. a lens section; 122. a fixed part; 123. an inner side surface; 124. an accommodating cavity; 130. a second lens; 131. an outer peripheral surface; 132. a limiting surface; 133. a transition surface; 134. a step portion; 140. a first light-shielding sheet; 150. a third lens; 160. a second light-shielding sheet; 200. an image capturing module; 210. a fixing member; 300. an electronic device; 310. a housing.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1 and 2, fig. 1 shows a schematic structural diagram of a lens 100 in some embodiments of the present application, and fig. 2 shows a schematic structural diagram of the lens 100 in other embodiments of the present application. The lens 100 includes a first lens element 120 and a second lens element 130, wherein the first lens element 120 and the second lens element 130 are both lens elements with refractive power, and the first lens element 120 and the second lens element 130 can be made of glass or plastic. The first lens element 120 and the second lens element 130 are coaxially disposed to form an optical axis 110 of the lens assembly 100.
Specifically, in some embodiments, the first lens 120 includes a lens portion 121 and a fixing portion 122 connected to each other, the fixing portion 122 is disposed around a periphery of the lens portion 121, and the fixing portion 122 and the lens portion 121 surround to form a receiving cavity 124. The second lens 130 is located in the receiving cavity 124, and the outer peripheral surface 131 of the second lens 130 abuts against the inner side surface 123 of the fixing portion 122, so that the fixing portion 122 can fix the second lens 130 in a direction perpendicular to the optical axis 110, and the second lens 130 is not eccentric.
It should be noted that in the present application, the description of centering the lens is understood to align the primary optical axis 110 of the lens with the optical axis 110 of the lens 100, or to align the primary optical axes 110 of the respective lenses; describing the lens decentration, it is understood that the primary optical axis 110 of the lens is offset from the optical axis 110 of the lens 100, or the primary optical axes 110 of the respective lenses are misaligned.
In the lens assembly 100, the second lens 130 is located in the accommodating cavity 124, which is equivalent to the first lens 120 wrapping the second lens 130 to center the second lens 130. Therefore, in the assembling process of the lens 100, when the second lens 130 enters the accommodating cavity 124 and the outer peripheral surface 131 abuts against the inner side surface 123, due to the fixing effect of the fixing portion 122 on the second lens 130, the first lens 120 and the second lens 130 can be ensured to move synchronously in the direction perpendicular to the optical axis 110, and the second lens 130 is not easy to be eccentric relative to the first lens 120, so that the assembling accuracy of the lens 100 can be improved, and the requirement of high imaging quality can be met.
Of course, the manner of fitting the outer peripheral surface 131 and the inner side surface 123 is not limited as long as the first lens 120 and the second lens 130 can be centered. For example, in the embodiment shown in fig. 1, the outer peripheral surface 131 is disposed obliquely to the optical axis 110, and specifically, the radial dimension of the inner side surface 123 gradually increases in a direction in which the first lens 120 is directed toward the second lens 130 along the optical axis, and accordingly, the inner side surface 123 is also oblique to the optical axis 110 to fit the outer peripheral surface 131. Therefore, the opening of the accommodating cavity 124 can be enlarged, so that the second lens 130 can enter the accommodating cavity 124 more easily during assembly and be assembled with the first lens 120.
Further, referring to fig. 1, in some embodiments, the second lens 130 is spaced apart from the lens portion 121. It can be understood that the outer peripheral surface 131 is inclined to the optical axis 110, and when the second lens 130 contacts the lens portion 121, the contact surface between the lens portion 121 and the second lens 130 is inclined to the contact surface between the fixing portion 122 and the second lens 130. Therefore, when there is a processing error, the contact between the second lens 130 and the lens portion 121 and the contact between the outer peripheral surface 131 and the inner side surface 123 are easily interfered with each other, so that only one of the lens portion 121 and the fixing portion 122 can contact with the second lens 130, but the other one cannot contact with the second lens 130, or the interaction force of the contact between one of the lens portion 121 and the fixing portion 130 is greater than that of the other one, thereby easily causing the first lens 120 and the second lens 130 to deform due to the assembling pressure during the assembling process, and affecting the imaging quality of the lens 100. Therefore, the second lens 130 and the lens part 121 do not need to be in contact with each other, so that the contact between the second lens 130 and the lens part 121 and the contact between the outer peripheral surface 131 and the inner side surface 123 can be prevented from being interfered with each other, the accumulated tolerance in the assembling process of the lens 100 is reduced, the assembling precision of the lens 100 is improved, and the requirement of high imaging quality is met.
Referring to fig. 2, in other embodiments, the outer peripheral surface 131 may also be disposed parallel to the optical axis 110, and correspondingly, the inner side surface 123 is also disposed parallel to the optical axis 110, and the second lens 130 is embedded in the receiving cavity 124. In order to make the first lens element 120 further limit the position of the second lens element 130 in a direction parallel to the optical axis 110, the second lens element 130 further includes a limiting surface 132, the limiting surface 132 faces the lens portion 121, and the limiting surface 132 is limited on the lens portion 121. Further, in some embodiments, the position-limiting surface 132 is perpendicular to the outer peripheral surface 131, in other words, the moving direction of the second lens element 130 away from or close to the lens portion 121 is perpendicular to the outer peripheral surface 131. Therefore, even if there is a machining error in the first lens 120 or the second lens 130, the stopper between the stopper surface 132 and the lens portion 121 and the contact between the outer peripheral surface 131 and the inner side surface 123 do not interfere with each other, so that the influence of the machining error on the lens assembly accuracy can be avoided, and the cumulative tolerance of the lens 100 in the assembly process can be further reduced.
It is understood that the spacing manner between the spacing surface 132 and the lens portion 121 is not limited as long as the lens portion 121 can limit the movement of the second lens 130 in the direction parallel to the optical axis 110. For example, in some embodiments, the lens 100 further includes a first light-shielding sheet 140, the first light-shielding sheet 140 is located between the lens portion 121 and the second lens 130, and two sides of the first light-shielding sheet 140 respectively abut against the outer edge of the lens portion 121 and the limiting surface 132. It can be understood that the first light shielding sheet 140 is disposed between the lens portion 121 and the second lens 130, and the thickness of the light shielding sheet is changed to adjust the relative positions of the first lens 120 and the second lens 130, so that the lens portion 121 and the second lens 130 are relatively far away from or relatively close to each other, and further the relative positions of the lenses in the lens 100 are changed to adjust the MTF curvature of field of the lens 100, thereby facilitating to improve the imaging quality of the lens 100.
Of course, in other embodiments, the position-limiting surface 132 may directly abut against the outer edge of the lens portion 121. By arranging the limiting surface 132, the lens portion 121 can limit the second lens 130 in the direction parallel to the optical axis 110, and the fixing portion 122 is matched to limit the second lens 130 in the direction perpendicular to the optical axis 110, so as to optimize the stress of the second lens 130, so that the fixing effect of the second lens 130 is better, and the assembling stability of the lens 100 is improved. Meanwhile, the limiting surface 132 is perpendicular to the outer peripheral surface 131, and the limiting between the limiting surface 132 and the lens part 121 and the contact between the outer peripheral surface 131 and the inner side surface 123 do not interfere with each other, so that the assembling accuracy of the lens 100 can be ensured.
In addition, when the limiting surface 132 is perpendicular to the outer peripheral surface 131, the outer peripheral surface 131 may not be parallel to the optical axis 110. For example, in other embodiments, the position-limiting surface 132 is perpendicular to the outer peripheral surface 131, the position-limiting surface 132 directly abuts against the lens portion 121, and the outer peripheral surface 131 is inclined to the optical axis 110. Accordingly, the shape of the contact portion of the lens portion 121 and the second lens 130 should be adjusted to fit the position-limiting surface 132, for example, the contact surface of the lens portion 121 and the position-limiting surface 132 is also inclined to the optical axis 110, so that the lens portion 121 can better limit the position of the second lens 130. Of course, the shapes of the outer peripheral surface 131, the limiting surface 132 and the first lens 120 may be designed otherwise, as long as the outer peripheral surface 131 is perpendicular to the limiting surface 132, and the limiting effect of the second lens 130 is improved, and the limiting between the limiting surface 132 and the lens portion 121 and the contact between the outer peripheral surface 131 and the inner side surface 123 do not interfere with each other.
It should be noted that in some embodiments, the second lens 130 further includes a transition surface 133, the transition surface 133 connects the outer peripheral surface 131 and the limiting surface 132, the shape of the transition surface 133 is not limited, and the transition surface 133 may form a straight line or an arc line with any shape on the cross section of the second lens 130, so as to improve the flexibility of the design of the second lens 130. It can be understood that the second lens 130 can be spaced from the fixing portion 122 so as not to affect the contact between the outer peripheral surface 131 and the inner side surface 123 or the contact between the limiting surface 132 and the first light-shielding sheet 140, thereby further reducing the assembly tolerance of the lens 100, and also facilitating the removal of burrs of the second lens 130. Of course, in other embodiments, the outer peripheral surface 131 may also be directly connected to the position-limiting surface 132, and the outer peripheral surface 131 and the position-limiting surface 132 are in a right-angle transition. In addition, in the embodiment shown in fig. 1, the peripheral side of the second lens 130 forms a continuous outer peripheral surface 131. In other embodiments, when the outer peripheral surface 131 is inclined to the optical axis 110, the second lens 130 may further include a transition surface (not shown) connected to the outer peripheral surface 131, and the angle between the transition surface and the optical axis 110 should be larger than the angle between the outer peripheral surface 131 and the optical axis 110, in other words, the transition surface is spaced from the inner side surface 123 so as not to affect the contact between the outer peripheral surface 131 and the inner side surface 123.
Further, please refer to fig. 3, in which fig. 3 shows a schematic structural diagram of the lens 100 in some embodiments of the present application. In some embodiments, the lens 100 further includes a third lens 150, the third lens 150 is located on a side of the second lens 130 away from the first lens 120, and the third lens 150 abuts against the second lens 130 to limit the second lens 130 in a direction parallel to the optical axis 110, at this time, the first lens 120 and the third lens 150 together enclose to form the accommodating cavity 124. As shown in fig. 1, when the outer peripheral surface 131 is inclined to the optical axis 110, the outer peripheral surface 131 abuts against the inner side surface 123, and the second lens 130 is spaced from the lens portion 121, the fixing portion 122 can limit the second lens 130 in two directions perpendicular to the optical axis 110 and parallel to the optical axis 110, and the second lens 130 can be fixed in the accommodating cavity 124 by matching with the limit of the third lens 150 on the second lens 130. As shown in fig. 2, when the outer peripheral surface 131 is perpendicular to the limiting surface 132, the fixing portion 122 limits the second lens 130 in a direction perpendicular to the optical axis 110, and the lens portion 121 and the third lens 150 limit the second lens 130 in a direction parallel to the optical axis 110 on two sides of the second lens 130, so as to fix the second lens 130 in the accommodating cavity 124.
Note that the first lens 120 and the third lens 150 directly abut against each other in the optical axis 110 direction, thereby reducing the assembly tolerance in the optical axis direction. Meanwhile, the direct contact between the second lens 130 and the lens barrel with low flatness can be avoided, and the fixation of the second lens 130 is more stable by utilizing the characteristic of high flatness of the lens, so that the second lens 130 is not easy to be eccentric relative to the first lens 120, and the assembly precision of the lens 100 can be improved.
Further, referring to fig. 3, it can be understood that when the third lens 150 abuts against the second lens 130, if the third lens 150 also abuts against the fixing portion 122, when there is a processing error, only one of the second lens 130 and the fixing portion 122 may be able to contact with the third lens 150, and the other one is easily deformed by an assembling pressure during an assembling process, which affects an assembling accuracy of the lens 100. Therefore, in some embodiments, when the third lens 150 abuts against the second lens 130, the fixing portion 122 is spaced from the third lens 150, so as to avoid the contact between the second lens 130 and the third lens 150 and the mutual influence between the fixing portion 122 and the third lens 150 caused by the machining error, reduce the accumulated tolerance in the assembling process of the lens 100, and improve the assembling accuracy of the lens 100.
Referring to fig. 1 and fig. 2 again, in some embodiments, the lens 100 may further include a second light shielding sheet 160, the second light shielding sheet 160 is located between the second lens 130 and the third lens 150, and two sides of the second light shielding sheet 160 respectively abut against the second lens 130 and the third lens 150. Therefore, by changing the thickness of the second light shielding sheet 160, the relative positions of the third lens 150, the first lens 120 and the second lens 130 can be adjusted, and further the MTF curvature of field of the lens 100 is adjusted, which is beneficial to improving the imaging quality of the lens 100. In addition, it can be understood that, when the third lens 150 directly abuts against the second lens 130 without passing through the second light-shielding sheet 160, the influence of the processing error of the second light-shielding sheet 160 on the lens assembly precision can be avoided, and the accumulated tolerance of the lens 100 in the assembly process can be reduced. For example, referring to fig. 3, in some embodiments, the edge of the second lens 130 extends toward the third lens 150 to form a step portion 134, and the second light shielding sheet 160 is disposed on a side of the second lens 130 facing the third lens 150 and abuts against an inner side of the step portion 134. The second light shielding sheet 160 and the third lens 150 are spaced from each other, and the second lens 130 abuts against the third lens 150 through the step 134.
Further, in other embodiments, the thickness of the second light-shielding sheet 160 may be greater than the height of the step portion 134, in other words, the step portion 134 is spaced apart from the third lens 150, so as to avoid the contact between the second light-shielding sheet 160 and the third lens 150 and the mutual influence between the step portion 134 and the third lens 150 caused by the machining error, reduce the accumulated tolerance in the assembling process of the lens 100, and improve the assembling accuracy of the lens 100. In addition, in the embodiment shown in fig. 1 and 2, the fixing portion 122 is also spaced from the third lens 150 to avoid the influence of the processing error on the assembling accuracy of the lens 100. Meanwhile, the step part 134 can limit the second light-shielding sheet 160, thereby preventing the second light-shielding sheet 160 from shifting.
In addition, in some embodiments, the fixing portion 122 is an annular structure, and the inner side surface 123 continuously surrounds the second lens 130 in the circumferential direction of the second lens 130 and abuts against the outer peripheral surface 131, and the annular structure can increase the contact area between the outer peripheral surface 131 and the inner side surface 123, thereby increasing the fixing effect of the first lens 120 on the second lens 130 and improving the assembling stability of the lens 100. Of course, the fixing portion 122 may also be a non-continuous structure, for example, in other embodiments, the fixing portion 122 includes a plurality of fixing blocks (not shown), and the fixing blocks are disposed at intervals along the periphery of the lens portion 121. Accordingly, the shape of the surface of each fixing block opposite to the outer peripheral surface 131 should also be adapted to the shape of the outer peripheral surface 131 so as to limit the position of the second lens 130, and the surfaces of the fixing blocks opposite to the outer peripheral surface 131 together form the inner side surface 123 of the fixing portion 122. Of course, the structure of the fixing portion 122 may have other designs. For example, a portion of the fixing portion 122 may be spaced apart from the second lens 130 to cooperate with other structures of the lens 100. Further structural designs can be derived from the above description, as long as they are not contradictory to the above description, and will not be described herein again.
In some embodiments, the fixing portion 122 and the lens portion 121 are formed by an integral injection molding process, and in other embodiments, the fixing portion 122 and the lens portion 121 may be connected to each other by a snap, a threaded connection, an interference fit, or the like. In some embodiments, the lens 100 further includes an optical adhesive for adhering the first lens 120, the second lens 130 and the third lens 150 to fix the first lens 120, the second lens 130 and the third lens 150 after assembly. Of course, in some embodiments, the lens 100 may further include a greater number of lenses, and any one of the lenses may extend to form the fixing portion 122 to wrap and center the other lens, thereby improving the assembly precision of the entire lens 100.
Referring to fig. 4, in some embodiments, the lens 100 further includes a fixing element 210, the first lens 120, the second lens 130, and the third lens 150 are all fixed in the fixing element 210 and abut against an inner wall surface of the fixing element 210, and the fixing element 210 can protect and fix the lenses. Specifically, the fixing element 210 may be a lens barrel of the lens 100, and may also be a fixing element such as a lens frame, a clamping element, or a mounting seat.
Fig. 4 also shows a schematic diagram of the image capturing module 200 according to some embodiments of the present disclosure. The image capturing module 200 includes a light sensing element 220 and the lens barrel 100 according to any of the embodiments, the light sensing element 220 is disposed at an image side of the lens barrel, and light rays can form an image on a light sensing surface of the light sensing element 220 after passing through the first lens 120, the second lens 130 and the third lens 150. The lens 100 is adopted in the image capturing module 200, so that the assembling precision of the lens 100 is high, and the requirement of high imaging quality can be met.
Referring to fig. 4 and 5 together, fig. 5 shows a schematic view of an electronic device 300 according to some embodiments of the present application. The electronic device 300 includes a housing 310 and the image capturing module 200, wherein the image capturing module 200 is disposed in the housing 310. Specifically, the electronic device 300 may be, but is not limited to, a wearable device such as a vehicle-mounted image capturing device such as a mobile phone, a video phone, a smart phone, an electronic book reader, and a driving recorder, or a smart watch, and may also be a handheld image capturing device such as a digital camera. When the electronic device 300 is a smart phone, the housing 310 may be a middle frame of the electronic device 300, the image capturing module 200 is fixed in the housing 310, and when the electronic device 300 is a digital camera, the housing 310 may be a housing of the electronic device 300. By adopting the image capturing module 200 in the electronic device 300, the assembling precision of the lens 100 is high, and the requirement of high imaging quality can be satisfied.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A lens is characterized by comprising a first lens, a second lens and a third lens which are sequentially arranged along the direction of an optical axis, wherein the first lens comprises a lens part and a fixing part extending from the edge of the lens part to the third lens, the fixing part is abutted to the third lens, the first lens and the third lens are enclosed to form an accommodating cavity, the second lens is fixed in the accommodating cavity, and the peripheral surface of the second lens is abutted to the inner side surface of the fixing part.
2. The lens barrel according to claim 1, further comprising a first light shielding sheet and a second light shielding sheet, wherein the first light shielding sheet is disposed between the lens portion and the second lens, both sides of the first light shielding sheet abut against the outer edge of the lens portion and the second lens, respectively, the second light shielding sheet is disposed between the second lens and the third lens, and both sides of the second light shielding sheet abut against the second lens and the third lens, respectively.
3. The lens barrel according to claim 1, wherein a radial dimension of an inner side surface of the fixing portion is gradually increased in a direction in which the first lens is directed toward the third lens along the optical axis, and a shape of an outer peripheral surface of the second lens is adapted to a shape of the inner side surface of the fixing portion.
4. A lens barrel according to claim 3, wherein the second lens is spaced apart from the lens portion.
5. The lens barrel according to claim 1, wherein the inner side surface and the outer peripheral surface are disposed parallel to the optical axis.
6. The lens barrel according to claim 5, wherein the second lens has a stopper surface facing the lens portion, the stopper surface abutting an outer edge of the lens portion.
7. The lens barrel according to claim 6, wherein the second lens further includes a transition surface connecting the limiting surface and the peripheral surface, the transition surface is inclined to the optical axis, and the transition surface and the fixing portion are spaced from each other.
8. The lens barrel according to claim 1, further comprising a second light shielding sheet, wherein an edge of the second lens extends toward the third lens to form a step portion, the second light shielding sheet is disposed on a side of the second lens facing the third lens and abuts against an inner side of the step portion, and the step portion abuts against the third lens.
9. An image capturing module, comprising a photosensitive element and the lens barrel of any one of claims 1 to 8, wherein the photosensitive element is disposed on an image side of the lens barrel.
10. An electronic device, comprising a housing and the image capturing module of claim 9, wherein the image capturing module is disposed on the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110405570.9A CN113219613A (en) | 2021-04-15 | 2021-04-15 | Lens, image capturing module and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110405570.9A CN113219613A (en) | 2021-04-15 | 2021-04-15 | Lens, image capturing module and electronic equipment |
Publications (1)
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Cited By (1)
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| CN114374787A (en) * | 2022-01-17 | 2022-04-19 | 合肥联宝信息技术有限公司 | Lens capable of realizing wide angle, image acquisition device and electronic equipment |
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