CN112596187A - Lens assembly, lens module and electronic equipment - Google Patents
Lens assembly, lens module and electronic equipment Download PDFInfo
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- CN112596187A CN112596187A CN202011507723.2A CN202011507723A CN112596187A CN 112596187 A CN112596187 A CN 112596187A CN 202011507723 A CN202011507723 A CN 202011507723A CN 112596187 A CN112596187 A CN 112596187A
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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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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/003—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having two lenses
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Abstract
The application discloses lens subassembly, lens module and electronic equipment. The lens assembly includes: the lens barrel is provided with an inner cavity, and the object side end of the lens barrel is provided with a window communicated with the inner cavity; the part of the first lens is arranged in the inner cavity of the lens cone and is abutted against the inner wall of the lens cone, and at least part of the object side surface of the first lens protrudes out of the window of the lens cone; and the second lens is connected and fixed on the object side surface of the first lens. The lens assembly realizes the purpose of small head of the lens assembly by combining the first lens and the second lens together into an L1 lens. Compared with the whole L1 lens, the thickness of the first lens is reduced, and when the first lens is manufactured, the adverse effect of the ejection structure on the demolding of the first lens can be avoided, so that the eccentricity value of the first lens is smaller and more stable, the thickness of the first lens is uniform, the plastic shrinkage ratio of the first lens is reduced, and the shape and the design value of the aspheric surface of the molded first lens are closer.
Description
Technical Field
The application relates to the technical field of cameras, in particular to a lens component, a lens module and electronic equipment.
Background
In recent years, a full screen has become a basic configuration of a mobile phone and a tablet personal computer, and a camera technology is continuously innovated and broken through. Currently, in a small-head camera, a part of an L1 lens (a first lens close to an object) is usually exposed outside a lens barrel, and blackening treatment is added to prevent the surface of the lens from being transparent.
In the process of implementing the present application, the inventor finds that at least the following problems exist in the prior art: the thickness of the L1 lens is thicker, a thimble structure is required to be added on the lens manufacturing mould, the lens is ejected out of the mould through the thimble structure, and the eccentricity of the L1 lens is not good due to the error of the thimble structure in the ejection and reset processes; in addition, the thickness of the L1 lens is not uniform, which causes different shrinkage ratios of plastics, resulting in a large difference between the shape and design value of the aspheric surface of the L1 lens, and seriously affects the imaging quality and assembly yield of the camera.
Disclosure of Invention
In view of the above, it is desirable to provide a lens assembly, a lens module and an electronic device to solve the above problems.
An embodiment of the present application provides a lens assembly, including:
the lens barrel is provided with an inner cavity and a window which is communicated with the inner cavity and is positioned at the object side end of the lens barrel;
the part of the first lens is arranged in the inner cavity of the lens barrel and is abutted against the inner wall of the lens barrel, and at least part of the object side surface of the first lens protrudes out of the window of the lens barrel; and
and the second lens is fixedly connected with the object side surface of the first lens.
The lens assembly comprises a first lens and a second lens which form an L1 lens together, so that the purpose of the small head of the lens assembly is achieved, compared with the whole L1 lens, the thickness of the first lens is reduced, when the first lens is manufactured, the ejection structure is not required to be designed to demold the first lens, the first lens can be directly ejected out of a mold through a material rod, the adverse effect of the ejection structure on the demolding of the first lens is avoided, the eccentric value of the first lens is smaller and more stable, the thickness of the first lens is uniform, the plastic shrinkage ratio of the first lens is reduced, the aspheric shape and the design value of the molded first lens are closer, and the imaging quality and the assembly yield of the lens assembly are favorably improved.
In some embodiments, the lens assembly satisfies the following relationship:
0.8mm≤A1≤4mm，
wherein A1 is the outer diameter value of the object side surface of the second lens.
Therefore, the outer diameter value of the object side face of the second lens is limited by the range of the outer diameter value of the object side face of the second lens, the opening of the screen of the electronic equipment with the lens assembly is facilitated, and the opening size can meet the requirement of the electronic equipment for comprehensive screen design.
In some embodiments, the lens assembly further satisfies the following relationship:
0.6≤A1/A2≤0.8，
wherein A2 is the maximum outer diameter value of the first lens.
Therefore, the value of A2 is synchronously determined through A1, the maximum outer diameter value of the first lens is limited, namely the outer diameter of the L1 lens is limited, so that the opening of the screen of the electronic equipment with the lens assembly is facilitated on the premise that the L1 lens is in accordance with the effect of the L1 lens, and the opening size can meet the requirement of the electronic equipment on the overall screen design.
In some embodiments, the lens assembly further satisfies the following relationship:
0.2mm≤A3-A2≤0.6mm，
wherein A3 is the minimum outer diameter value of the outer wall of the lens barrel.
Thus, the value of A3 is synchronously determined through A2, the minimum value of the outer wall of the lens barrel is limited, A1, A2 and A3 are mutually related, the opening of the screen of the electronic equipment with the lens assembly is facilitated, and the opening size can meet the requirement of the electronic equipment for full-screen design.
In some embodiments, the lens assembly further satisfies the following relationship:
0.2mm≤A4+A5≤1.5mm，
wherein, a4 is the central thickness value of the part of the object side of the first lens protruding the lens barrel window, and a5 is the central thickness value of the second lens.
Therefore, the central thickness of the L1 lens protruding out of the lens barrel is limited by meeting the sum of the central thickness value of the part of the object side surface of the first lens protruding out of the lens barrel window and the central thickness value of the second lens, so that the lens assembly has the characteristic of a small head, and meanwhile, the depth of the first lens and the second lens in the mold cavity is reduced, and the demolding of the first lens and the second lens is facilitated.
In some embodiments, the lens assembly further satisfies the following relationship:
0.5≤(A4+A5)/(A5+A6)≤0.8，
wherein A6 is the central thickness value of the first lens.
Thus, the value of A5+ A6 is synchronously determined by A4+ A5, the central thickness of the L1 lens is limited, the depth of the first lens and the second lens in the mold cavity is reduced, and demolding of the first lens and the second lens is facilitated.
In some embodiments, the lens assembly further satisfies the following relationship:
0.3≤A5/(A5+A6)≤0.7。
therefore, the value of A5 is synchronously determined through A5+ A6, the central thickness value of the second lens is limited, A4, A5 and A6 are mutually related, the depth of the first lens and the second lens in a mold cavity is reduced, demolding of the first lens and the second lens is facilitated, an ejection structure is not needed during demolding of the first lens, the adverse effect of the ejection structure on the first lens is avoided, and the eccentricity value of the first lens is smaller and more stable.
In some embodiments, further comprising:
and the connecting piece is used for connecting and fixing the first lens and the second lens.
Therefore, the first lens and the second lens are connected through the connecting piece, and the L1 lenses can be tightly connected.
An embodiment of the present application further provides a lens module, including:
a lens assembly as described above.
Above-mentioned lens module is through constituteing L1 lens with first lens and second lens together, with the purpose of realizing the little head of lens module, compare in the L1 lens of whole piece, the thickness of first lens reduces, when the first lens of preparation, need not design ejecting structure and carry out the drawing of patterns to first lens, can directly withdraw from first lens from the mould through the material pole, thereby avoid ejecting structure adverse effect when drawing of patterns to first lens, so that the eccentric value of first lens is littleer, it is more stable, the thickness of first lens is even, the plastic shrinkage ratio of first lens reduces, the aspheric shape and the design value of the first lens that the shaping was come out are more close, can reduce the size and the weight of lens module, and the cost is saved, be favorable to promoting the imaging quality and the equipment yield of lens module.
An embodiment of the present application further provides an electronic device, including:
a housing;
the lens module is arranged in the shell.
The L1 lens is formed by the first lens and the second lens together by the electronic equipment, so that the purpose of the small head of the lens module is realized, compared with the whole L1 lens, the thickness of the first lens is reduced, when the first lens is manufactured, the ejection structure is not required to be designed to demold the first lens, the first lens can be directly withdrawn from a die through the material rod, the adverse effect of the ejection structure on the demolding of the first lens is avoided, the eccentric value of the first lens is smaller and more stable, the thickness of the first lens is uniform, the plastic shrinkage ratio of the first lens is reduced, the shape and the design value of the aspheric surface of the formed first lens are closer, the size and the weight of the electronic equipment can be reduced, the cost is saved, the screen occupation ratio of the electronic equipment is increased, and the imaging quality and the assembly yield of the electronic equipment are favorably improved.
Drawings
Fig. 1 is a schematic structural diagram of a lens assembly according to a first embodiment of the present application.
Fig. 2 is a schematic dimension marking diagram of a lens assembly provided in the first embodiment of the present application.
Fig. 3 is a schematic structural diagram of a lens assembly according to a second embodiment of the present application.
Fig. 4 is a schematic structural diagram of an electronic device according to a third embodiment of the present application.
Description of the main elements
Connecting element 18, 118
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application.
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, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Referring to fig. 1, a lens assembly 10 is provided in a first embodiment of the present application, and the lens assembly 10 at least includes a lens barrel 12, a first lens 14 and a second lens 16.
The lens barrel 12 has an inner cavity 122 and a window 124 communicating with the inner cavity 122 and located at an object side end of the lens barrel 12; the part of the first lens 14 is arranged in the inner cavity of the lens barrel 12 and abuts against the inner wall of the lens barrel 12, and the whole object side surface of the first lens 14 protrudes out of the window 124 of the lens barrel 12; the second lens 16 is attached to the object side of the first lens 14.
The lens assembly 10 achieves the purpose of the small head of the lens assembly 10 by combining the first lens 14 and the second lens 16 into an L1 lens. Compared with the whole L1 lens, the thickness of the first lens 14 is reduced, when the first lens 14 is manufactured, the ejection structure is not required to be designed to demold the first lens 14, the first lens 14 can be directly ejected from the mold through the material rod, so that the adverse effect of the ejection structure on the demolding of the first lens 14 is avoided, the eccentricity value of the first lens 14 is smaller and more stable, the thickness of the first lens 14 is uniform, the plastic shrinkage ratio of the first lens 14 is reduced, the shape and the design value of the aspheric surface of the molded first lens 14 are closer, and the shape and the design value of the first lens 14 are closer, so that the assembly yield of the lens assembly 10 can be improved during assembly; based on the assembly yield of the lens assembly 10 and the quality of the first lens 14, the imaging quality of the lens assembly 10 can also be improved.
The object side of the lens barrel 12 is an end close to the object when taking images by the lens.
The first lens 14 has an object-side surface and an image-side surface, the object-side surface of the first lens 14 is a convex surface or a concave surface, and the image-side surface of the first lens 14 is a convex surface or a concave surface; the second lens 16 has an object-side surface and an image-side surface, the object-side surface of the second lens 16 is a convex surface or a concave surface, the image-side surface of the second lens 16 is connected to the object-side surface of the first lens 14, and the image-side surface of the second lens 16 is matched with the object-side surface of the first lens 14. The second lens 16 is fixedly connected to the first lens 14, and together forms the L1 lens of the lens assembly 10.
The first lens 14 and the second lens 16 together form the L1 lens of the lens assembly 10, the L1 lens is the first lens to approach the object, and the L1 lens generally has positive refractive power. When the lens module is used for imaging, light firstly enters the L1 lens, that is, when the lens module is used for imaging, light emitted or reflected by a subject sequentially passes through the second lens 16 and the first lens 14 from the object side direction of the lens assembly 10, and is finally used for imaging.
Referring to fig. 2, in some embodiments, the lens assembly 10 satisfies the following relationship:
0.8mm≤A1≤4mm，
wherein, a1 is the outer diameter of the object-side surface of the second lens 16, and a1 can be 1.42mm, 1.50mm, 1.59mm or 1.83 mm.
Satisfy above-mentioned relational expression, can prescribe a limit to the external diameter value of the object side of second lens 16, be favorable to carrying out the trompil to the screen of the electronic equipment that has this lens subassembly 10, the trompil size can satisfy the electronic equipment that has this lens subassembly 10 to the requirement of full screen design. However, when a1 is smaller than 0.8mm, the outer diameter of the object-side surface of the second lens 16 is smaller, so that the aperture of the lens assembly 10 is smaller, which is not favorable for opening a screen of an electronic device having the lens assembly 10 and increases the difficulty of opening the screen; when a1 is greater than 4mm, the outer diameter of the object-side surface of the second lens 16 is larger, so that the aperture of the lens assembly 10 is larger, and the opening of the screen of the electronic device is larger, which is not favorable for meeting the requirement of the overall screen design of the electronic device with the lens assembly 10.
With continued reference to fig. 2, in some embodiments, the lens assembly 10 further satisfies the following relationship:
0.6≤A1/A2≤0.8，
wherein, A2 is the maximum outer diameter value of the first lens 14, A2 is approximately 1mm ≤ A2 ≤ 6.67mm, and A2 is 3.0mm, 3.3mm, 3.4mm, or 3.6 mm.
Satisfying the above relation, synchronously determining the value of a2 through a1, namely defining the maximum outer diameter value of the first lens 14, and defining the outer diameter of the L1 lens, so that the lens is beneficial to opening a screen of an electronic device with the lens assembly 10 on the premise of meeting the function of the L1 lens, and the opening size can meet the requirement of the electronic device on the overall screen design. However, when a2 is smaller than 1mm, the maximum outer diameter of the first lens 14 is smaller, and accordingly, the outer diameter of the object-side surface of the second lens 16 is also smaller, so that the aperture of the lens assembly 10 is smaller, which is not favorable for opening a screen of an electronic device and increases the difficulty of opening the screen; when a2 is greater than 6.67mm, the maximum outer diameter of the first lens 14 is larger, and accordingly, the outer diameter of the object-side surface of the second lens 16 is larger, so that the aperture of the lens assembly 10 is larger, and the screen opening of the electronic device is larger, which is not favorable for meeting the requirement of the overall screen design of the electronic device having the lens assembly 10, and at the same time, the size and weight of the lens assembly 10 are increased, which is not favorable for meeting the design requirement of the miniaturization of the lens assembly 10.
With continued reference to fig. 2, in some embodiments, the lens assembly 10 further satisfies the following relationship:
0.2mm≤A3-A2≤0.6mm，
wherein, A3 is the minimum outer diameter value of the outer wall of the lens barrel 12, A3 is approximately 1.2mm ≤ A3 ≤ 7.27mm, and A3 can be 3.6mm, 3.75mm, 3.85mm, 3.9mm, 4.0mm or 4.17 mm.
Satisfying the above relation, determining the value of A3 synchronously through a2, that is, defining the minimum outer diameter value of the outer wall of the lens barrel 12, where a1, a2 and A3 are associated with each other, is beneficial to opening the screen of the electronic device having the lens assembly 10, and the size of the opening can satisfy the requirement of the electronic device for the full-screen design. However, when a3 is smaller than 1.2mm, the minimum outer diameter of the outer wall of the lens barrel 12 is small, which is not favorable for assembling the first lens 14 and the second lens 16, and increases the difficulty of assembling the lens assembly 10; when a3 is greater than 7.27mm, the minimum outer diameter of the outer wall of the lens barrel 12 is larger, which is not favorable for reducing the external dimension and weight of the lens barrel 12, and accordingly, the maximum outer diameter of the first lens 14 and the outer diameter of the object-side surface of the second lens 16 are also larger, so that the aperture of the lens assembly 10 is larger, the opening of the screen of the electronic device is larger, which is not favorable for meeting the requirement of the overall screen design of the electronic device having the lens assembly 10, and the volume and weight of the lens assembly 10 are increased.
With continued reference to fig. 2, in some embodiments, the lens assembly 10 further satisfies the following relationship:
0.2mm≤A4+A5≤1.5mm，
wherein, a4 is the central thickness of the first lens 14 protruding from the window 124 of the barrel 12, and a5 is the central thickness of the second lens 16.
Satisfying the above relation, the lens assembly 10 has a small-head feature by defining the sum of the total central thickness of the window 124 of the lens barrel 12 protruding from the object side of the first lens 14 and the central thickness of the second lens 16, i.e. the central thickness of the L1 lens protruding from the lens barrel 12, and at the same time, the depth of the first lens 14 and the second lens 16 in the mold cavity is reduced, which is beneficial to demolding the first lens 14 and the second lens 16. However, when a4+ a5 is smaller than 0.2mm, the thickness of the center of the window 124 of the L1 lens protruding out of the lens barrel 12 is smaller, i.e. the lens face of the L1 lens exposed out of the lens barrel 12 is smaller, and the meaning that the lens module part is exposed out of the lens barrel 12 is lost, and the electronic device having the lens assembly 10 no longer has the feature of a small head; when a4+ a5 is greater than 1.5mm, the thickness of the center of the window 124 of the L1 lens protruding from the lens barrel 12 is larger, and accordingly, the depth of the first lens 14 and the second lens 16 in the mold cavity is deeper, which is not favorable for demolding the first lens 14 and the second lens 16, and increases the difficulty of demolding the first lens 14 and the second lens 16.
The center thickness is a thickness of a portion of the lens coaxial with the optical axis.
With continued reference to fig. 2, in some embodiments, the lens assembly 10 further satisfies the following relationship:
0.5≤(A4+A5)/(A5+A6)≤0.8，
wherein, A6 is the central thickness value of the first lens 14, and the value range of A5+ A6 is approximately 0.25mm ≤ A5+ A6 ≤ 3 mm.
Satisfy above relational expression, decide the size of the value of A5+ A6 through A4+ A5 synchronization, to be precise to the central thickness of L1 lens, make L1 lens satisfy the function of the first piece lens of lens module, reduced the degree of depth of first lens 14 and second lens 16 in the mould die cavity simultaneously, be favorable to the drawing of patterns of first lens 14 and second lens 16. However, when a5+ a6 is less than 0.25mm, the center thickness of the L1 lens is small, and the first lens 14 and the second lens 16 are difficult to mold after being split into the first lens 14 and the second lens 16; when a5+ a6 is greater than 3mm, the center thickness of the L1 lens is larger, and accordingly, the depth of the first lens 14 and the second lens 16 in the mold cavity is deeper, which is not favorable for demolding the first lens 14 and the second lens 16, and increases the difficulty of demolding the first lens 14 and the second lens 16.
With continued reference to fig. 2, in some embodiments, the lens assembly 10 further satisfies the following relationship:
0.3≤A5/(A5+A6)≤0.7，
the value range of A4 is approximately 0< A4 ≤ 0.3mm, and the value of A4 can be 0.1mm, 0.15mm, 0.2mm or 0.3 mm; the value range of A5 is approximately more than or equal to 0.05mm and less than or equal to A5 and less than or equal to 1.5mm, and the value of A5 can be 0.35mm, 0.55mm, 0.6mm, 0.65mm or 0.66 mm; the value range of A6 is approximately 0.2 mm-A6-1.5 mm, and the value of A6 can be 0.6mm, 0.65mm, 0.7mm, 0.8mm or 0.83 mm.
The above relation is satisfied, the value of a5 is synchronously determined by a5+ a6, the value of the central thickness of the second lens 16 is further limited, the a4, a5 and a6 are mutually related, demolding of the first lens 14 and the second lens 16 is facilitated, an ejection structure is not needed when the first lens 14 is demolded, the adverse effect of the ejection structure on the first lens is avoided, the eccentricity value of the first lens 14 is smaller and more stable, the plastic shrinkage ratio of the first lens 14 is reduced, and the shape and the design value of the aspheric surface of the molded first lens 14 are closer. However, when a5 is less than 0.075mm and/or a6 is less than 0.2mm, the central thickness values of the first and second lenses 14, 16 are small and difficult to mold; when a5 is greater than 1.5mm and/or a6 is greater than 1.5mm, the central thickness of the first lens 14 and the second lens 16 is larger, and the depth of the first lens 14 and the second lens 16 in the mold cavity is deeper, which is not favorable for demolding the first lens 14 and the second lens 16, and increases the difficulty of demolding the first lens 14 and the second lens 16.
With continued reference to fig. 1, in some embodiments, the lens assembly 10 further includes a connecting member 18, and the connecting member 18 connects and fixes the first lens 14 and the second lens 16. In this embodiment, the connecting member 18 is made of optical cement, and the first lens 14 and the second lens 16 are bonded by the optical cement, so as to form the L1 lens.
The lens assembly 10 is bonded by optical cement by dividing the L1 lens structure into the first lens 14 and the second lens 16, so as to ensure that the L1 lens structure is tightly connected.
It is understood that in other embodiments, the optical glue may be silicone, acrylic, and unsaturated polyester, polyurethane, or epoxy.
Referring to fig. 3, a lens assembly 110 provided in the second embodiment of the present application has substantially the same structure as the lens assembly 10 provided in the first embodiment, except that: in this embodiment, the portion of the object-side surface of the first lens 114 protrudes out of the window 1124 of the lens barrel 112, and the second lens 116 is connected to the object-side surface of the first lens 114 through the connecting member 118.
The thickness of the first lens 114 in the lens assembly 110 is reduced, when the first lens 114 is manufactured, the ejection structure is not required to be designed to demold the first lens 114, the first lens 114 can be directly ejected from the mold through the material rod, and therefore adverse effects of the ejection structure on demolding of the first lens 114 are avoided, so that the eccentricity value of the first lens 114 is smaller and more stable, the thickness of the first lens 114 is uniform, the plastic shrinkage ratio of the first lens 114 is reduced, the aspheric shape and the design value of the molded first lens 114 are closer, and the imaging quality and the assembly yield of the lens assembly 110 are favorably improved.
Referring to fig. 4, a third embodiment of the present application provides an electronic device 1000, where the electronic device 1000 at least includes a housing 30 and a lens module 100, and the lens module 100 is disposed in the housing 30.
The lens module 100 includes at least one lens assembly of the first embodiment or the second embodiment. The present embodiment takes the lens assembly 10 in the first embodiment as an example for explanation.
The electronic device 1000 is configured by combining the first lens 14 and the second lens 16 into an L1 lens, to achieve the purpose of small head of the lens module 100, the thickness of the first lens 14 is reduced compared to the entire L1 lens, in the manufacture of the first lens 14, there is no need to design an ejection structure to demold the first lens 14, the first lens 14 can be directly ejected from the mold through the material rod, thereby avoid ejecting the adverse effect that the structure caused when drawing of patterns to first lens 14 to make the eccentric value of first lens 14 littleer, more stable, the thickness of first lens 14 is even, the plastic shrink ratio of first lens 14 reduces, the aspheric shape and the design value of the first lens 14 of shaping out are more close, be favorable to reducing electronic equipment 1000's size and weight, save the cost, increase electronic equipment 1000's screen accounts for the ratio, can also promote electronic equipment's formation of image quality and equipment yield.
It is to be understood that the structure of the electronic device 1000 is not limited to the electronic device of the present embodiment, and the electronic device may include more or less components than those described above, or combine some components, or split some components, or arrange different components.
The electronic device 1000 in this embodiment is a mobile phone, and the lens module 100 is a front camera of the electronic device 1000.
It is understood that, in other embodiments, the electronic device 1000 may also be a tablet computer, a notebook computer, etc., and the lens module 100 is a corresponding front camera thereof.
It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application and not for limiting, and although the present application is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application.
Claims (10)
1. A lens assembly, comprising:
the lens barrel is provided with an inner cavity and a window which is communicated with the inner cavity and is positioned at the object side end of the lens barrel;
the part of the first lens is arranged in the inner cavity of the lens barrel and is abutted against the inner wall of the lens barrel, and at least part of the object side surface of the first lens protrudes out of the window of the lens barrel; and
and the second lens is fixedly connected with the object side surface of the first lens.
2. The lens assembly of claim 1, wherein the lens assembly satisfies the following relationship:
0.8mm≤A1≤4mm，
wherein A1 is the outer diameter value of the object side surface of the second lens.
3. The lens assembly of claim 2, wherein the lens assembly further satisfies the following relationship:
0.6≤A1/A2≤0.8，
wherein A2 is the maximum outer diameter value of the first lens.
4. The lens assembly of claim 3, wherein the lens assembly further satisfies the following relationship:
0.2mm≤A3-A2≤0.6mm，
wherein A3 is the minimum outer diameter value of the outer wall of the lens barrel.
5. The lens assembly of claim 1, wherein the lens assembly further satisfies the following relationship:
0.2mm≤A4+A5≤1.5mm，
wherein, a4 is the central thickness value of the part of the object side of the first lens protruding the lens barrel window, and a5 is the central thickness value of the second lens.
6. The lens assembly of claim 5, wherein the lens assembly further satisfies the following relationship:
0.5≤(A4+A5)/(A5+A6)≤0.8，
wherein A6 is the central thickness value of the first lens.
7. The lens assembly of claim 6, wherein the lens assembly further satisfies the following relationship:
0.3≤A5/(A5+A6)≤0.7。
8. the lens assembly of claim 1, further comprising:
and the connecting piece is used for connecting and fixing the first lens and the second lens.
9. A lens module, comprising:
the lens assembly of any one of claims 1-8.
10. An electronic device, comprising:
a housing;
the lens module of claim 9, disposed in the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011507723.2A CN112596187A (en) | 2020-12-18 | 2020-12-18 | Lens assembly, lens module and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011507723.2A CN112596187A (en) | 2020-12-18 | 2020-12-18 | Lens assembly, lens module and electronic equipment |
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| Publication Number | Publication Date |
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| CN112596187A true CN112596187A (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011507723.2A Pending CN112596187A (en) | 2020-12-18 | 2020-12-18 | Lens assembly, lens module and electronic equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022126660A1 (en) * | 2020-12-18 | 2022-06-23 | 欧菲光集团股份有限公司 | Lens assembly, lens module, and electronic device |
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2020
- 2020-12-18 CN CN202011507723.2A patent/CN112596187A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022126660A1 (en) * | 2020-12-18 | 2022-06-23 | 欧菲光集团股份有限公司 | Lens assembly, lens module, and electronic device |
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