CN109143534A - The electronic device of optical lens and the application optical lens - Google Patents
The electronic device of optical lens and the application optical lens Download PDFInfo
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- CN109143534A CN109143534A CN201710508396.4A CN201710508396A CN109143534A CN 109143534 A CN109143534 A CN 109143534A CN 201710508396 A CN201710508396 A CN 201710508396A CN 109143534 A CN109143534 A CN 109143534A
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- Prior art keywords
- lens
- optical
- diopter
- object side
- image side
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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
- G02B13/0045—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 five or more lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
A kind of optical lens and the electronic device using the optical lens, electronic device have an at least optical lens.Optical lens from object side to image side sequentially include one first lens, one second lens, a third lens, one the 4th lens, one the 5th lens, one the 6th lens, one the 7th lens and one the 8th lens.Second lens and the third lens have negative diopter, and the 4th lens, the 6th lens and the 8th lens have positive diopter.First lens are a plastic lens, and object side surface is convex surface and/or image side surface is concave surface, and the 6th lens and the 7th lens constitute a compound lens.Above-mentioned optical lens and electronic device can maintain certain resolving power under the premise of visual angle increases or essence is constant in different environment.
Description
Technical field
The present invention relates to the electronic devices of a kind of optical lens and the application optical lens, and in particular to it is a kind of have compared with
Wide visual angle and can in different medium the optical lens of pick-up image and the application optical lens electronic device.
Background technique
In recent years, due to the movable rise of photography at random of motion state, for the demand of light and short optical lens
It is substantially improved, has also taken up the general mood of one small-sized high-quality image capture unit, this type device is mainly used in outdoor work
Dynamic instant video shooting, it is small and have the characteristic of ultra-wide angle that the camera lens suitable for this type device needs overall length.
It is generally used for the image capture unit of normal environment, due to lower with the elasticity of environment modulation camera parameter.For example,
The camera shooting quality of image capture unit can not overcome the refraction index changing because of surrounding medium, and make visual angle become smaller and resolving power decline
The problem of, so that image capture unit is extremely difficult to the demand of image quality stabilization and ultra-wide angle.Therefore, proposition one is needed
Kind new optical lens and electronic device can remain certain with environmental factor and solve under the premise of visual angle increases or essence is constant
The purpose of image force.
Summary of the invention
The purpose of the present invention is to provide a kind of optical lens.Under the premise of visual angle increases or essence is constant, in difference
Environment in can maintain certain resolving power.
The present invention proposes a kind of optical lens, sequentially includes one first lens, one second lens, one from object side to image side
Three lens, one the 4th lens, one the 5th lens, one the 6th lens, one the 7th lens and one the 8th lens.Second lens and third
Lens have negative diopter, and the 4th lens, the 6th lens and the 8th lens have positive diopter, and the object side surface of the first lens
Image side surface for convex surface and/or the first lens is concave surface.
The present invention separately proposes a kind of optical lens, sequentially includes one first lens, one second lens, one from object side to image side
The third lens, one the 4th lens, one the 5th lens, one the 6th lens, one the 7th lens and one the 8th lens.Second lens and
Three lens have negative diopter, and the 4th lens, the 6th lens and the 8th lens have positive diopter, and the first lens, second are thoroughly
Total diopter of mirror, the third lens and the 4th lens is negative diopter, and the 5th lens, the 6th lens, the 7th lens and the 8th are thoroughly
Total diopter of mirror is positive diopter.
The present invention separately proposes a kind of optical lens, sequentially includes one first lens, one second lens, one from object side to image side
The third lens, one the 4th lens, one the 5th lens, one the 6th lens, one the 7th lens and one the 8th lens.Second lens and
Three lens have negative diopter, and the 4th lens, the 6th lens and the 8th lens have positive diopter, and the first lens are that plastic cement is saturating
Mirror and/or the 6th lens and the 7th lens constitute compound lens.
The present invention reintroduces a kind of optical lens, sequentially includes one first lens, one second lens, one from object side to image side
The third lens, one the 4th lens, one the 5th lens, one the 6th lens, one the 7th lens and one the 8th lens.First lens,
Two lens, the third lens and the 7th lens have negative diopter, and the 4th lens, the 5th lens, the 6th lens and the 8th lens have
There is positive diopter.
In one or more embodiments, Rr=(radius of curvature on the image side surface of first lens)/(first lens
The radius of curvature of object side surface), and 0 < | Rr | and/or | Rr |≤0.85.
In one or more embodiments, the optics effective diameter of the first lens is greater than or equal to the second lens, the third lens, the
Four lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens the optics effective diameter of any one.
In one or more embodiments, optical lens meets at least one of the following conditions: the first lens have negative dioptric
Degree and/or the first lens are non-spherical lens；5th lens have positive diopter；7th lens have negative diopter；6th thoroughly
The synthesis diopter of mirror and the 7th lens is negative diopter；8th lens are non-spherical lens；Second lens, the third lens,
At least one of four lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens are glass lens；Optical lens more wraps
Include a visual angle FOV, and 170 °≤FOV and/or FOV≤230 °.
In one or more embodiments, it be meniscus, the third lens is convex that the first lens, which are meniscus, the second lens,
It is concave-convex lens, the 6th lens be biconvex lens, the 7th lens is double that concavees lens, the 4th lens, which are biconvex lens, the 5th lens,
Concavees lens or the 8th lens are biconvex lens.
The present invention separately proposes a kind of electronic device, includes two groups of optical lens as described above.
In one or more embodiments, optical lens meets at least one of the following conditions: 0.5≤| F1 '/F1 |, | F1 '/
F1 |≤0.95,0 < | R1/R1 ' |, | R1/R1 ' |≤0.7,0 < | R2/R2 ' | and | R2/R2 ' |≤0.75；Wherein, F1 and F1 '
It is the focal length of each first lens respectively；R1 and R1 ' is the radius of curvature of the object side surface of each first lens respectively；And R2 with
R2 ' is the radius of curvature on the image side surface of each first lens respectively.
The present invention reintroduces a kind of electronic device, includes at least one set of optical lens as described above, wherein optical lens
The first lens can from electronic device alternately load and unload.
According to the above embodiments, optical lens is under the premise of visual angle increases or essence is constant, in different environment
It can maintain certain image quality.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Detailed description of the invention
Fig. 1 is painted the optical lens of one embodiment of the invention.
Fig. 2A lists each lens parameter of an embodiment of the optical lens of Fig. 1 of the invention.
Fig. 2 B lists the aspherical mathematical expression coefficient of an embodiment of the optical lens of Fig. 1 and Fig. 2A of the invention.
Fig. 3 is painted the optical lens of another embodiment of the present invention.
Fig. 4 A lists each lens parameter of an embodiment of the optical lens of Fig. 3 of the invention.
Fig. 4 B lists the aspherical mathematical expression coefficient of an embodiment of the optical lens of Fig. 3 and Fig. 4 A of the invention.
Fig. 5 is painted the optical lens of one more embodiment of the present invention.
Fig. 6 A lists each lens parameter of an embodiment of the optical lens of Fig. 5 of the invention.
Fig. 6 B lists the aspherical mathematical expression coefficient of an embodiment of the optical lens of Fig. 5 and Fig. 6 A of the invention.
Fig. 7 is painted the optical lens of another embodiment of the present invention.
Fig. 8 lists each lens parameter of an embodiment of the optical lens of Fig. 7 of the invention.
Fig. 9 list Fig. 2A, 4A, 6A and 8 optical lens optical data.
Specific embodiment
Multiple embodiments of the invention will be disclosed with attached drawing below, as clearly stated, the details in many practices
It will be explained in the following description.It should be appreciated, however, that the details in these practices is not applied to limit the present invention.Also
It is to say, in some embodiments of the present invention, the details in these practices is non-essential.In addition, for the sake of simplifying schema, one
A little known usual structures and element will be painted it in a manner of simply illustrating in the drawings.
Fig. 1 is painted the optical lens OL1 of one embodiment of the invention.For the feature for showing the present embodiment, only show and this
The related structure of embodiment, remaining structure are omitted.Optical lens OL1 can be tight shot or zoom lens, can answer
For the electronic device with projection image or pick-up image function.Electronic device includes but is not limited to (hand-held) communication
Device, empty device, sports type photographic device, vehicle mounted imaging apparatus, monitoring arrangement, numerical digit camera shooting/recording device or the image clapped are thrown
Image device.
In one embodiment, optical lens OL1 from object side (objectside) to image side (image-formingside) can be according to
Sequence includes one first lens group G1 and one second lens group G2.Wherein, the first lens group G1 has negative diopter comprising multiple
Lens；Second lens group G2 has diopter, e.g. positive diopter or negative diopter comprising multiple lens.Each lens can
Optical axis OA along optical lens OL1 is arranged.
As shown in Figure 1, the first lens group G1 may include at least four lens；Second lens group G2 may include at least four saturating
Mirror.In one specific embodiment, multiple lens in four lens of the second lens group G2 may make up a compound lens (not indicating).
Wherein compound lens can be is made of two or two or more lens, without to limit the present invention.
In one embodiment, the first lens group G1 may include four lens, and wherein at least two lens have negative diopter, extremely
Few lens have positive diopter, and other lenses have diopter, such as with positive diopter or negative diopter；Another implementation
In example, the second lens group G2 may include four lens, and wherein at least two lens have positive diopter, and other lenses are in the wrong
Luminosity, such as it is respectively provided with positive diopter and/or negative diopter.
Referring to Fig.1, the first lens group G1 from object side to image side sequentially include one first lens L1, one second lens L2, one
The third lens L3 and one the 4th lens L4；Second lens group G2 from object side to image side sequentially include one the 5th lens L5, one the 6th
Lens L6, one the 7th lens L7 and one the 8th lens L8.In one embodiment, the first lens L1, the second lens L2, the third lens L3
And the 4th total diopter of lens L4 be negative diopter, the 5th lens L5, the 6th lens L6, the 7th lens L7 and the 8th lens L8
Total diopter be positive diopter.
In one embodiment, the second lens L2 and the third lens L3 can have negative diopter；4th lens L4, the 6th lens L6
And the 8th lens L8 can have positive diopter；And the first lens L1, the 5th lens L5 and the 7th lens L7 can be respectively provided with and just bend
Luminosity or negative diopter.In one specific embodiment, the first lens L1 has positive diopter with negative diopter, the 5th lens L5,
And the 7th lens L7 there is negative diopter, but not to limit the present invention.
Furthermore in an embodiment, the synthesis diopter of the 6th lens L6 and the 7th lens L7 are negative diopters, imply that and penetrate
After crossing the 6th lens L6 and the 7th lens L7, light beam is the effect that negative dioptric is presented.Specifically, as shown in Fig. 1, the 6th lens
L6 and the 7th lens L7 may make up compound lens, and compound lens can have a diopter, and the image side surface S12 of the 6th lens L6 with
The object side surface S13 of 7th lens L7 matches each other and substantially identical.If this means, image side surface S12 is protruded towards image side, object side
Surface S13 is recessed towards image side；If image side surface S12 is recessed towards object side, object side surface S13 is protruded towards object side.In addition, another reality
It applies in example, compound lens can have negative diopter.
As shown in Figure 1, it is first that the first lens L1, which is lens, the 4th lens L4 in the first lens group G1 near object side,
Lens, the 5th lens L5 in lens group G1 near image side are the lens in the second lens group G2 near object side, and the 8th
Lens L8 is the lens in the second lens group G2 near image side, but not to limit the present invention.In another embodiment, first thoroughly
Mirror L1, which may also include one or more than one to any gap between the 8th lens L8 or at least a gap, has diopter
Lens (are not painted)；Or first lens L1 object side direction may also comprise one or more than one with diopter lens
(not being painted)；Or the 8th may also include the one or more than one lens with diopter between lens L8 and imaging surface I (not
It is painted).
Optical lens OL1 has a visual angle FOV (Field of View).In one embodiment, optical lens OL1 can meet:
200°≤FOV、190°≤FOV、185°≤FOV、175°≤FOV、170°≤FOV、180°≤FOV、FOV≤210°、FOV≤
At least one of the conditions such as 220 ° and FOV≤230 °.
Another embodiment, the first lens L1 of optical lens OL1 can meet at least one of the following conditions: 0 < | Rr |,
0.05≤| Rr |, | Rr |≤0.7, | Rr |≤0.75, | Rr |≤0.8 with | Rr |≤0.85.Wherein, Rr=(the first lens L1's
The radius of curvature of image side surface S2)/(radius of curvature of the object side surface S1 of the first lens L1).
The optics effective diameter of another embodiment, the first lens L1 is greater than or equal to the second lens L2, the third lens L3, the 4th
The optics effective diameter of any one of lens L4, the 5th lens L5, the 6th lens L6, the 7th lens L7 and the 8th lens L8.
In addition, the first lens L1, the second lens L2, the third lens L3, the 4th lens L4, the 5th lens L5, the 6th lens
L6, the 7th lens L7 and the 8th lens L8 can respectively use plastic lens or glass lens.Glass lens can be by glass material system
At plastic lens can be made of plastic material.Wherein, plastic material may include, but be not limited to, polycarbonate
(polycarbonate), cyclic olefine copolymer (such as APEL) and polyester resin (such as OKP4 or OKP4HT) etc., or can
To be the mixing of at least one and/or combination materials for including aforementioned three.
In one embodiment, the first lens L1 uses plastic lens or glass lens, the second lens L2, the third lens L3, the
Four lens L4, the 5th lens L5, the 6th lens L6, the 7th lens L7 and the 8th lens L8 can be all using glass lens or at least
One uses glass lens；Another embodiment, the first lens L1 use glass lens, and the second lens L2, the third lens L3,
At least one of four lens L4, the 5th lens L5, the 6th lens L6, the 7th lens L7 and the 8th lens L8 use plastic lens；
Another embodiment, the first lens L1 use glass lens, the second lens L2, the third lens using plastic lens, the 8th lens L8
L3, the 4th lens L4, the 5th lens L5, the 6th lens L6 and the 7th lens L7 can be respectively using plastic lens and glass lens
Any one.
In one embodiment, the first lens L1, the second lens L2, the third lens L3, the 4th lens L4, the 5th lens L5,
Six lens L6, the 7th lens L7 and the 8th lens L8 may respectively be appointing for spherical lens, free-form surface lens and non-spherical lens
One.For example, the second lens L2, the third lens L3, the 4th lens L4, the 5th lens L5, the 6th lens L6 and the 7th are saturating
Mirror L7 is spherical lens, and the first lens L1 is respectively any of non-spherical lens and free-form surface lens with the 8th lens L8
Person；Alternatively, the first lens L1, the second lens L2, the third lens L3, the 4th lens L4, the 5th lens L5, the 6th lens L6 and
Seven lens L7 are spherical lens, and the 8th lens L8 is non-spherical lens or free-form surface lens.
Specifically, each free-form surface lens have an at least free form surface surface, the object of free-form surface lens is implied that
Side surface and/or image side surface are free form surface surfaces；And each non-spherical lens has an at least non-spherical surface, implies that non-
The object side surface and/or image side surface of spherical lens are non-spherical surfaces.And each non-spherical surface can meet following mathematical expression:
Wherein, Z is the coordinate values in the direction optical axis OA, using optical transmission direction as positive direction；Ai is asphericity coefficient, i=
4,6,8,10 or 12；K is quadratic surface constant；C=1/R, R are radius of curvature；Y is the coordinate values for being orthogonal to the direction optical axis OA,
Using the direction far from optical axis OA as positive direction.In addition, the parameters of each non-spherical surface mathematical expression or the value of coefficient can phases
It is mutually independent.
As shown in Fig. 1, the object side surface of the first lens L1 of optical lens OL1, the second lens L2 and the third lens L3
S1, S3, S5 and image side surface S2, S4, S6 can all have positive refractive index.Object side surface S1, S3, S5 can be protruded towards object side respectively
Convex surface；Image side surface S2, S4, S6 can be the concave surface recessed towards object side respectively.For example, the first lens L1, the second lens
The lens with diopter can be respectively adopted in L2 and the third lens L3, and the including but not limited to convex-concave glass with negative diopter is saturating
Mirror or convex-concave plastic lens.Wherein object side surface S1, S3, S5 and image side surface S2, S4, S6 can be all spherical face, Huo Zhezhi
Few one is non-spherical surface or free form surface surface.In one embodiment, the image side surface of the first lens L1 of optical lens OL1
S2 can be non-spherical surface or free form surface surface.
Object side surface S7, S11, S15 of 4th lens L4, the 6th lens L6 and the 8th lens L8 can be respectively provided with positive dioptric
Rate can be the convex surface protruded towards object side respectively；S8, S12, S16 can be respectively provided with negative refractive index on image side surface, can be respectively
The convex surface protruded towards image side.For example, the 4th lens L4, the 6th lens L6 and the 8th lens L8 can be respectively adopted to have and just bend
Any one of the double convex glass lens of luminosity and biconvex plastic lens.Wherein object side surface S7, S11, S15 and image side surface S8,
S12, S16 can be all spherical face or at least one be non-spherical surface or free form surface surface.In one embodiment, the 8th
The object side surface S15 and image side surface S16 of lens L8 can be respectively any one of non-spherical surface and free form surface surface.
The object side surface S9 and image side surface S10 of 5th lens L5 can have negative refractive index.Object side surface S9 can be towards picture
The recessed concave surface in side, image side surface S10 can be the convex surface protruded towards image side.For example, the 5th lens L5, which can be used, has just
The concave-convex glass or plastic lens of diopter or negative diopter.In one embodiment, the 5th lens L5 is using with positive diopter
Concave-convex glass spherical lens.
The object side surface S13 of 7th lens L7 can have negative refractive index, can be the concave surface recessed towards image side；Image side surface
S14 can have positive refractive index, can be the concave surface recessed towards object side.For example, the 7th lens L7 can be used with negative dioptric
The concave-concave glass spherical lens or concave-concave plastic spheric lenes of degree.
Furthermore optical lens OL1 more may include a diaphragm St and/or screening glass C；The also settable image of imaging surface I is picked
Unit (not being painted) is taken, photoelectric conversion can be carried out to the light beam for penetrating optical lens OL1.Wherein, diaphragm St may be disposed at light
It learns between wantonly two lens L1~L8 in camera lens OL1, between the object side or the 8th lens L8 and imaging surface I of the first lens L1.One
In embodiment, diaphragm St is set between the first lens group G1 and the second lens group G2, and but not limited to this；In addition, screening glass C
It may also set up between the 8th lens L8 and imaging surface I.
On the other hand, optical lens OL1 more may include an optical filter F, and optical filter F may be disposed at the 8th lens L8 and protection
Between piece C.Furthermore in another embodiment, screening glass C can be provided simultaneously with protection image acquisition unit and filter out infrared beam
Function, and optical filter F can be omitted.
Fig. 2A lists each lens parameter of an embodiment of the optical lens OL1 of Fig. 1 of the invention comprising each lens
Radius of curvature, thickness, refractive index, material and Abbe number (abbe number) etc..Wherein the surface code name of eyeglass be from object side to
Image side sequentially layout, such as: " St " represents diaphragm St, " S1 " represents the object side surface S1 of the first lens L1, and " S2 " represents first
Image side surface S2 ... " S17 " and " S18 " of lens L1 respectively represents the object side surface S17 and image side surface S18 of optical filter F, "
S19 " and " S20 " respectively represent object side surface S19 and image side surface S20 of screening glass C etc..Certainly should in addition, " thickness " represents
The distance on a time surface in surface to image side direction, for example, " thickness " of object side surface S1 is the object side table from the first lens L1
The distance of the image side surface S2 of face S1 to the first lens L1；" thickness " of image side surface S2 is from the image side surface of the first lens L1
The distance of the object side surface S3 of S2 to the second lens L2.
Fig. 2 B lists the aspherical mathematical expression coefficient of an embodiment of the optical lens OL1 of Fig. 1 and Fig. 2A of the invention.
If the object side surface S15 and image side surface S16 of the image side surface S2 of the first lens L1 of optical lens OL1, the 8th lens L8 are
Non-spherical surface, then each term coefficient of each aspherical mathematical expression is as shown in Figure 2 B.
Fig. 3 is painted the optical lens OL2 of another embodiment of the present invention；Fig. 4 A lists the optical lens of Fig. 3 of the invention
Each lens parameter of an embodiment of OL2；Fig. 4 B lists an embodiment party of the optical lens OL2 of Fig. 3 and Fig. 4 A of the invention
The aspherical mathematical expression coefficient of formula.The optical lens OL2 of the present embodiment is substantially similar with optical lens OL1, and substantially continues to use phase
Same title and label.Wherein, the image side surface S2 ' of the first lens L1 ' of optical lens OL2 is also non-spherical surface；Optics
Eightth lens L8 identical with optical lens OL1 then can be used in camera lens OL2.
Be in place of optical lens OL2 and optical lens OL1 main difference: the first lens L1 of optical lens OL1 is different
In the first lens L1 ' of optical lens OL2.Wherein, the first lens L1 ' of optical lens OL2 relative to optical lens OL1
One lens L1 waits physics special in the refractive index of object side surface S1, refractive index, thickness, refractive index and the Abbe number ... of image side surface S2
Property at least one of have different numerical value and/or performance, and then it is different that optical lens OL2 and optical lens OL1 can be made to have
Optical appearance/performance.
Fig. 5 is painted the optical lens OL3 of another embodiment of the present invention；Fig. 6 A lists the optical lens of Fig. 5 of the invention
Each lens parameter of an embodiment of OL3；Fig. 6 B lists an embodiment party of the optical lens OL3 of Fig. 5 and Fig. 6 A of the invention
The aspherical mathematical expression coefficient of formula.The optical lens OL3 of the present embodiment is substantially similar with optical lens OL1, and substantially continues to use phase
With title and label, and if the 8th lens L8 of optical lens OL3 object side surface S15 and image side surface S16 be it is aspherical
Surface, then each term coefficient of each aspherical mathematical expression is as shown in Figure 6B.
Fig. 7 is painted the optical lens OL4 of another embodiment of the present invention；Fig. 8 lists the optical lens of Fig. 7 of the invention
Each lens parameter of an embodiment of OL4.The optical lens OL4 of the present embodiment is substantially similar with optical lens OL3, and substantially
Continue to use identical title and label.
Further, it is referring concurrently to Fig. 5 to Fig. 8, optical lens OL4 and the main difference of optical lens OL3: by light
The the first lens L1 for learning camera lens OL3 is replaced with the first lens L1 ' of optical lens OL4, and then captures shadow in different medium environment
When picture, certain image quality is also ensured that.Wherein, the first lens L1 ' of optical lens OL4 is relative to optical lens OL3's
First lens L1, thickness, refractive index, Abbe number, the refractive index of object side surface S1 and image side surface S2 refractive index ... wait physics
At least one of characteristic has different numerical value and/or performance.
Fig. 9 list Fig. 2A, 4A, 6A and 8 optical lens OL1, OL2, OL3, OL4 optical data.
In addition, referring to figs. 1 to Fig. 9, optical lens OL1 and OL2 and optical lens OL2 and OL4's main difference is that
Using different first lens L1, L1 '.Therefore, the present invention proposes that one includes optical lens OL1, OL2 or OL3, OL4 again
Electronic device (is not painted), can make optical lens OL1/OL3 and optical lens by way of dismounting first lens L1, L1 '
OL2/OL4 is converted on the electronic device.In other words, by alternately load and unload the first lens L1 and L1 ', selecting property of electronic device
By optical lens OL1/OL3 or optical lens OL2/OL4 pick-up image under appropriate environment.
Furthermore electronic device includes multiple groups of optical lens.One embodiment, electronic device include at least two groups of optical lens
The optical lens OL3 of optical lens OL2, at least two groups of OL1, at least two groups, or at least two groups of optical lens OL4；Another implementation
Example, at least one or electronics dress of the electronic device including at least one group of optical lens OL1 and optical lens OL2, OL3, OL4
It sets and includes at least one group of optical lens OL2 and optical lens OL3 or OL4.
Further, an embodiment, the first lens L1 and optics of optical lens OL1, OL3 applied to electronic device
The first lens L1 ' of camera lens OL2, OL4 can meet at least one of the following conditions: 0.5≤| F1 '/F1 |, 0.6≤| F1 '/F1 |,
0.7≤| F1 '/F1 |, 0.75≤| F1 '/F1 |, 0.76≤| F1 '/F1 |, | F1 '/F1 |≤0.92, | F1 '/F1 |≤0.93 with |
F1'/F1|≦0.95.Wherein, F1 is the focal length of the first lens L1, and F1 ' is the focal length of the first lens L1 '.
Another embodiment, first lens L1, L1 ' of electronic device can meet at least one of the following conditions: 0 < | R1/
R1’|、0.01≦|R1/R1’|、0.02≦|R1/R1’|、0.03≦|R1/R1’|、|R1/R1’|≦0.55、|R1/R1’|≦
0.6 with | R1/R1 ' |≤0.7.Wherein, the radius of curvature of the object side surface S1 of the first lens L1 is R1, the object of the first lens L1 '
The radius of curvature of side surface S1 ' is R1 '.
Another embodiment, first lens L1, L1 ' can meet at least one of the following conditions: 0 < | R2/R2 ' |, 0.3≤|
R2/R2’|、0.35≦|R2/R2’|、0.36≦|R2/R2’|、|R2/R2’|≦0.5、|R2/R2’|≦0.55、|R2/R2’|≦
0.65, | R2/R2 ' |≤0.7 with | R2/R2 ' |≤0.75.Wherein, the radius of curvature of the image side surface S2 of the first lens L1 is R2,
The radius of curvature of the image side surface S2 ' of first lens L1 ' is R2 '.
Meanwhile a specific embodiment, the first lens L1 of optical lens OL1, OL3 can meet at least the one of the following conditions
Person: 0 < | R2/R1 |, 0.05≤| R2/R1 |, 0.4≤| R2/R1 |, 0.5≤| R2/R1 |, 0.55≤| R2/R1 |, 0.56≤|
R2/R1 |, | R2/R1 |≤0.69, | R2/R1 |≤0.7, | R2/R1 |≤0.75, | R2/R1 |≤0.8 with | R2/R1 |≤0.85.
In addition, a specific embodiment, the first lens L1 ' of optical lens OL2, OL4 can meet at least the one of the following conditions
Person: 0 < | R2 '/R1 ' |, 0.02≤| R2 '/R1 ' |, 0.05≤| R2 '/R1 ' |, 0.06≤| R2 '/R1 ' |, | R2 '/R1 ' |≤
0.62, | R2 '/R1 ' |≤0.65, | R2 '/R1 ' |≤0.7, | R2 '/R1 ' |≤0.75, | R2 '/R1 ' |≤0.8 with | R2 '/R1 ' |
At least one of the conditions such as≤0.85.
Optical lens OL1, OL3 can be made to provide preferable image quality, optical lens OL2 in a media environment as a result,
Preferable image quality is provided in another transfer environment.Wherein, media environment is including but not limited to air, ocean, swimming pool ...
Deng, but the present invention is not limited with this.
By the above embodiments it is found that optical lens OL1, OL2, OL3, OL4 can be through replacement first lens L1, L1 '
And it can all show the characteristic of wide viewing angle and sharp image simultaneously in different media environments.
Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, ripe
It knows those skilled in the art and makes various corresponding changes and modifications, but these corresponding changes and change in accordance with the present invention
Shape all should fall within the scope of protection of the appended claims of the present invention.
Claims (11)
1. a kind of optical lens, which is characterized in that sequentially include from object side to image side:
One first lens, one second lens, a third lens, one the 4th lens, one the 5th lens, one the 6th lens, one the 7th
Lens and one the 8th lens, second lens and the third lens have a negative diopter, the 4th lens, the 6th lens with should
8th lens have a positive diopter, and the object side surface of first lens is that the image side surfaces of convex surface and/or first lens is
Concave surface.
2. a kind of optical lens, which is characterized in that sequentially include from object side to image side: one first lens, one second lens, one
Three lens, one the 4th lens, one the 5th lens, one the 6th lens, one the 7th lens and one the 8th lens, second lens and should
The third lens have negative diopter, the 4th lens, the 6th lens and the 8th lens have positive diopter, and this first thoroughly
Mirror, second lens, the third lens and the 4th lens total diopter be negative diopter, the 5th lens, the 6th are thoroughly
Total diopter of mirror, the 7th lens and the 8th lens is positive diopter.
3. a kind of optical lens, which is characterized in that sequentially include from object side to image side:
One first lens, one second lens, a third lens, one the 4th lens, one the 5th lens, one the 6th lens, one the 7th
Lens and one the 8th lens, second lens and the third lens have a negative diopter, the 4th lens, the 6th lens with should
8th lens have positive diopter, and first lens are that a plastic lens and/or the 6th lens and the 7th lens are constituted
One compound lens.
4. a kind of optical lens, which is characterized in that sequentially include from object side to image side: one first lens, one second lens, one
Three lens, one the 4th lens, one the 5th lens, one the 6th lens, one the 7th lens and one the 8th lens, first lens are somebody's turn to do
Second lens, the third lens and the 7th lens have negative diopter, the 4th lens, the 5th lens, the 6th lens
There is positive diopter with the 8th lens.
5. according to claim 1 to the optical lens of 4 any one, which is characterized in that Rr=(the image side table of first lens
The radius of curvature in face)/(radius of curvature of the object side surface of first lens), and 0 < | Rr | and/or | Rr |≤0.85.
6. according to claim 1 to the optical lens of 4 any one, which is characterized in that the optics effective diameter of first lens
More than or equal to second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and
The optics effective diameter of any one of the 8th lens.
7. according to claim 1 to the optical lens of 3 any one, which is characterized in that optical lens meets the following conditions
At least one:
First lens have negative diopter and/or first lens are non-spherical lens；
5th lens have positive diopter；
7th lens have negative diopter；
The synthesis diopter of 6th lens and the 7th lens is negative diopter；
8th lens are non-spherical lens；
Second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th
At least one of lens is glass lens；And
The optical lens further includes a visual angle FOV, and 170 °≤FOV and/or FOV≤230 °.
8. according to claim 1 to the optical lens of 4 any one, which is characterized in that first lens are meniscuses, should
It is meniscus, the 4th lens be biconvex lens, the 5th lens is concave-convex that second lens, which are meniscus, the third lens,
Lens, the 6th lens are biconvex lens, the 7th lens are biconcave lens or the 8th lens are biconvex lens.
9. a kind of electronic device, which is characterized in that the optical lens comprising two groups of such as any one of Claims 1-4 item.
10. electronic device according to claim 9, which is characterized in that those optical lens meet at least one of the following conditions:
0.5≤| F1 '/F1 |, | F1 '/F1 |≤0.95,0 < | R1/R1 ' |, | R1/R1 ' |≤0.7,0 < | R2/R2 ' | and | R2/R2 ' |
≦0.75；
Wherein, F1 and F1 ' is the focal length of those each the first lens respectively；R1 and R1 ' is those each first lens respectively
The radius of curvature of object side surface；And R2 and R2 ' are the radius of curvature on the image side surface of those each the first lens respectively.
11. a kind of electronic device, which is characterized in that the optical frames comprising at least one set of such as any one of Claims 1-4 item
Head, wherein first lens of the optical lens can alternately be loaded and unloaded from the electronic device.
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| CN201710508396.4A CN109143534B (en) | 2017-06-28 | 2017-06-28 | Optical lens and electronic device using same |
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