CN110501799A - Optical lens - Google Patents
Optical lens Download PDFInfo
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- CN110501799A CN110501799A CN201810466285.6A CN201810466285A CN110501799A CN 110501799 A CN110501799 A CN 110501799A CN 201810466285 A CN201810466285 A CN 201810466285A CN 110501799 A CN110501799 A CN 110501799A
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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
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Abstract
This application discloses a kind of optical lens, the optical lens along optical axis by object side to image side sequentially can include: the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.Wherein, the first lens can have negative power, and object side is convex surface, and image side surface is concave surface；Second lens can have positive light coke, and object side and image side surface are convex surface；The third lens can have negative power, and object side and image side surface are concave surface；4th lens can have positive light coke, and object side is concave surface, and image side surface is convex surface；5th lens can have positive light coke；And the 6th lens can have a negative power, image side surface is concave surface, and image side surface is convex surface.At least one beneficial effect during according to the optical lens of the application, it can be achieved that miniaturization, long-focus, temperature performance are good etc..
Description
Technical field
This application involves a kind of optical lens, more specifically, this application involves a kind of optical lens including six-element lens.
Background technique
With the development of science and technology, the emerging technologies such as unmanned also will be more more and more universal, to camera lens it is remote at
As requirement also will be higher and higher.General on-vehicle lens require visual field larger, therefore focal length is smaller, are unfavorable for remote clear
Imaging.Remote imaging needs longer focal length, but focal length is longer will lead to that overall length is long, is unfavorable for the miniaturization of camera lens,
The especially restricted optical lens of the such installation space of on-vehicle lens.
More and more fields need to be carried out with camera lens under visual field extension, especially adverse circumstances at present, more need
Human eye is replaced to carry out the acquisition and analysis of image using camera lens.Therefore, the stabilization of the retention property of camera lens at different temperatures
Property is particularly important.And general camera lens, in the state that temperature is raised and lowered, camera lens optimum image plane can shift,
There is image blur, therefore the high-resolution under different temperatures also becomes an indispensable performance of front view lens.
Summary of the invention
This application provides be applicable to vehicle-mounted installation, can at least overcome or part overcome it is in the prior art it is above-mentioned extremely
The optical lens of a few defect.
The one aspect of the application provides such a optical lens, and the optical lens is along optical axis by object side to image side
Sequentially can include: the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.Wherein, first thoroughly
Mirror can have negative power, and object side is convex surface, and image side surface is concave surface；Second lens can have positive light coke, object side
It is convex surface with image side surface；The third lens can have negative power, and object side and image side surface are concave surface；4th lens can have
There is positive light coke, object side is concave surface, and image side surface is convex surface；5th lens can have positive light coke；And the 6th lens can
With negative power, image side surface is concave surface, and image side surface is convex surface.
In one embodiment, the object side of the 5th lens can be convex surface, and image side surface can be concave surface.
In another embodiment, the object side of the 5th lens and image side surface can be convex surface.
In one embodiment, optical lens further includes the diaphragm being arranged between the second lens and the third lens.
In one embodiment, the center of the object side of the first lens to optical lens imaging surface on optical axis away from
It can meet between TTL and the whole group focal length value F of optical lens: TTL/F≤2.8.
In one embodiment, the variable quantity that the Refractive Index of Material of the 5th lens varies with temperature can meet dn/dt (5)
≤-5×10-6。
In one embodiment, between the object flank radius R12 of the 6th lens and its image side surface radius of curvature R 13
It can meet: 0.1≤R12/R13≤0.8.
In one embodiment, the Refractive Index of Material Nd6 of the 6th lens can be more than or equal to 1.65.
The another aspect of the application provides such a optical lens, and the optical lens is along optical axis by object side to image side
Sequentially can include: the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.Wherein, first thoroughly
Mirror, the third lens and the 6th lens can have negative power；Second lens, the 4th lens and the 5th lens can have positive light
Focal power；The object side of 5th lens can be convex surface；And first the imaging surfaces of center to optical lens of object side of lens exist
It can meet between distance TTL on optical axis and the whole group focal length value F of optical lens: TTL/F≤2.8.
In one embodiment, the object side of the first lens can be convex surface, and image side surface can be concave surface.
In one embodiment, the object side of the second lens and image side surface can be convex surface.
In one embodiment, the object side of the third lens and image side surface can be concave surface.
In one embodiment, the object side of the 4th lens can be concave surface, and image side surface can be convex surface.
In one embodiment, the image side surface of the 5th lens can be concave surface.
In another embodiment, the image side surface of the 5th lens can be convex surface.
In one embodiment, the object side of the 6th lens can be concave surface, and image side surface can be convex surface.
In one embodiment, optical lens further includes the diaphragm being arranged between the second lens and the third lens.
In one embodiment, the variable quantity that the Refractive Index of Material of the 5th lens varies with temperature can meet dn/dt (5)
≤-5×10-6。
In one embodiment, between the object flank radius R12 of the 6th lens and its image side surface radius of curvature R 13
It can meet: 0.1≤R12/R13≤0.8.
In one embodiment, the Refractive Index of Material Nd6 of the 6th lens can be more than or equal to 1.65.
The application uses such as six-element lens, by the shape of optimal setting eyeglass, the light focus of each eyeglass of reasonable distribution
Degree and the reasonable arrangement of eyeglass etc., realize the miniaturization of optical lens, long-focus, temperature performance it is good etc. at least one beneficial imitate
Fruit.
Detailed description of the invention
In conjunction with attached drawing, by the detailed description of following non-limiting embodiment, other features of the application, purpose and excellent
Point will be apparent.In the accompanying drawings:
Fig. 1 is the structural schematic diagram for showing the optical lens according to the embodiment of the present application 1；And
Fig. 2 is the structural schematic diagram for showing the optical lens according to the embodiment of the present application 2.
Specific embodiment
Various aspects of the reference attached drawing to the application are made more detailed description by the application in order to better understand.It answers
Understand, the only description to the illustrative embodiments of the application is described in detail in these, rather than limits the application in any way
Range.In the specification, the identical element of identical reference numbers.Stating "and/or" includes associated institute
Any and all combinations of one or more of list of items.
It should be noted that in the present specification, first, second, third, etc. statement is only used for a feature and another spy
Sign distinguishes, without indicating any restrictions to feature.Therefore, without departing substantially from teachings of the present application, hereinafter
The first lens discussed are also known as the second lens or the third lens.
In the accompanying drawings, for ease of description, thickness, the size and shape of lens are slightly exaggerated.Specifically, attached drawing
Shown in spherical surface or aspherical shape be illustrated by way of example.That is, spherical surface or aspherical shape are not limited to attached drawing
Shown in spherical surface or aspherical shape.Attached drawing is merely illustrative and and non-critical drawn to scale.
Herein, near axis area refers to the region near optical axis.If lens surface is convex surface and does not define convex surface position
When setting, then it represents that the lens surface is convex surface near axis area is less than；If lens surface is concave surface and does not define the concave surface position
When, then it represents that the lens surface is concave surface near axis area is less than.Surface in each lens near object is known as object side,
Surface in each lens near imaging surface is known as image side surface.
It will also be appreciated that term " comprising ", " including ", " having ", "comprising" and/or " including ", when in this theory
It indicates there is stated feature, element and/or component when using in bright book, but does not preclude the presence or addition of one or more
Other feature, component, assembly unit and/or their combination.In addition, ought the statement of such as at least one of " ... " appear in institute
When after the list of column feature, entire listed feature is modified, rather than modifies the individual component in list.In addition, when describing this
When the embodiment of application, " one or more embodiments of the application " are indicated using "available".Also, term " illustrative "
It is intended to refer to example or illustration.
Unless otherwise defined, otherwise all terms (including technical terms and scientific words) used herein all have with
The application one skilled in the art's is generally understood identical meaning.It will also be appreciated that term (such as in everyday words
Term defined in allusion quotation) it should be interpreted as having and their consistent meanings of meaning in the context of the relevant technologies, and
It will not be explained with idealization or excessively formal sense, unless clear herein so limit.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
The feature of the application, principle and other aspects are described in detail below.
Optical lens according to the application illustrative embodiments includes such as six lens with focal power, i.e., and first
Lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.This six lens along optical axis from object side to
Image side sequential.
It can also further comprise the photosensitive member for being set to imaging surface according to the optical lens of the application illustrative embodiments
Part.Optionally, the photosensitive element for being set to imaging surface can be photosensitive coupling element (CCD) or Complimentary Metal-Oxide semiconductor
Element (CMOS).
First lens can have negative power, and object side can be convex surface, and image side surface can be concave surface.First lens are set as
The meniscus shape for being convex to object side can collect incident ray as much as possible, be dissipated after so that light is entered optical system.In reality
In the application of border, it is contemplated that on-vehicle lens outdoor mounted use environment, can be in the bad weathers such as sleet, such object side that is convex to
Meniscus shape design, is more applicable in the environment such as sleet, is conducive to the landing of water droplet, reduces influence of the external environment to imaging.
Second lens can have positive light coke, and object side and image side surface can be convex surface.Second lens can be by first thoroughly
The light that mirror is collected is converged, and makes light gentle transition to rear optical system.
The third lens can have negative power, and object side and image side surface can be concave surface.The third lens can be by second
The light that lens are collected is dissipated, and light tendency is adjusted, and is conducive to reduce color difference.
4th lens can have positive light coke, and object side can be concave surface, and image side surface can be convex surface.4th lens can will be through
The light for crossing front system is converged, and is made its gentle transition to the 5th lens, is conducive to reduction system overall length.
5th lens can have positive light coke, and object side can be convex surface, and image side surface optionally can be convex surface or concave surface.The
Five lens can further be converged the light that the 4th lens are collected, and adjusted light, made the smooth transition of light tendency to rear
Optical system reduces camera lens rear end bore.In addition, the 5th lens are set as with positive light coke, and its Refractive Index of Material is with temperature
The variable quantity dn/dt (5) of degree variation is negative value, specifically, dn/dt (5)≤- 5 × 10-6, this facilitates camera lens in biggish temperature
More perfect imaging definition is still kept in degree range.
6th lens can have negative power, and object side can be concave surface, and image side surface can be convex surface.6th lens are diverging
Lens can dissipate front and converge light, so that image space light is at ascendant trend, to realize the matching of large chip.In addition, the
Six lens are set as with negative power, and to 0.1 between its object flank radius R12 and image side surface radius of curvature R 13
The restriction of the special shape of≤R12/R13≤0.8, it is more desirable that 0.2≤R12/R13 of further satisfaction between R12 and R13≤
0.6, CRA can be further decreased and increase focal length.High-index material can be used in 6th lens, for example, the 6th lens material is rolled over
The rate of penetrating meets Nd6 >=1.65, it is more desirable that further satisfaction Nd6 >=1.7, further to shorten TTL.
In the exemplary embodiment, can the light for limiting light beam be set for example between the second lens and the third lens
Door screen, to further increase the image quality of camera lens.Diaphragm is arranged between the second lens and the third lens, can collect front and back light
Line reduces eyeglass bore, while achieving the effect that balance entire camera lens front-end and back-end bore.
In the exemplary embodiment, between the optics total length TTL of optical lens and the whole group focal length value of optical lens
TTL/F≤2.8 can be met, it is more desirable that can further satisfaction TTL/F≤2.5.Meet conditional TTL/F≤2.8, it can be achieved that
The small size performance of camera lens.
In the exemplary embodiment, eyeglass used by optical lens can be spheric glass or aspherical lens.It is non-
The characteristics of spheric glass, is: being consecutive variations from center of lens to periphery curvature.And have constant song from center of lens to periphery
The spheric glass of rate is different, and aspherical lens have more preferably radius of curvature characteristic, and there is improvement to distort aberration and improve astigmatism
The advantages of aberration.After aspherical lens, the aberration occurred when imaging can be eliminated as much as possible, to promote mirror
The image quality of head.When paying close attention to camera lens resolution energy, optical lens can use aspherical lens, to promote solution image quality
Amount.
In the exemplary embodiment, eyeglass used by optical lens can be the eyeglass of plastic material, can also be
The eyeglass of glass material.The eyeglass thermal expansion coefficient of plastic material is larger, when the variation of ambient temperature used in the camera lens is larger,
The lens of plastic material can cause the optic back focal variable quantity of camera lens larger.Using the eyeglass of glass material, temperature pair can be reduced
Burnt influence after lens optical.When paying close attention to camera lens temperature performance, optical lens can use full glass material, to guarantee
Stable optical property is kept at different temperatures.
According to the optical lens of the above embodiment of the application, is rationally arranged by eyeglass and light is adjusted to reach
It is elongated to focal length while guaranteeing that overall length is shorter；Pass through the optimal setting of Rational choice, lens shape to lens materials, focal power
Reasonable distribution, guarantee camera lens miniaturization while, realize the performances such as small distortion, high light passing, additionally it is possible to guarantee that camera lens exists
More perfect imaging definition is still kept in certain temperature range.
However, it will be understood by those of skill in the art that without departing from this application claims technical solution the case where
Under, the lens numbers for constituting camera lens can be changed, to obtain each result and advantage described in this specification.Although for example,
It is described by taking six lens as an example in embodiment, but the optical lens is not limited to include six lens.If desired,
The optical lens may also include the lens of other quantity.
The specific embodiment for being applicable to the optical lens of above embodiment is further described with reference to the accompanying drawings.
Embodiment 1
Referring to Fig. 1 description according to the optical lens of the embodiment of the present application 1.Fig. 1 is shown according to the embodiment of the present application 1
Optical lens structural schematic diagram.
As shown in Figure 1, optical lens is along optical axis from object side to sequentially including the first lens L1, the second lens at image side
L2, the third lens L3, the 4th lens L4, the 5th lens L5 and the 6th lens L6.
First lens L1 is the meniscus lens with negative power, and object side S1 is convex surface, and image side surface S2 is concave surface.
Second lens L2 is the biconvex lens with positive light coke, and object side S3 and image side surface S4 are convex surface.
The third lens L3 is the biconcave lens with negative power, and object side S6 and image side surface S7 are concave surface.
4th lens L4 is the meniscus lens with positive light coke, and object side S8 is concave surface, and image side surface S9 is convex surface.
5th lens L5 is the meniscus lens with positive light coke, and object side S10 is convex surface, and image side surface S11 is concave surface.
6th lens L6 is the meniscus lens with negative power, and object side S12 is concave surface, and image side surface S13 is convex surface.
Optionally, which may also include optical filter L7 and/or protection with object side S14 and image side surface S15
Lens L7 '.Optical filter L7 can be used for correcting color error ratio.Protection lens L7 ' can be used for that the image positioned at imaging surface IMA is protected to pass
Sense chip.Light from object sequentially passes through each surface S1 to S15 and is ultimately imaged on imaging surface IMA.
In the optical lens of the present embodiment, diaphragm STO can be set between the second lens L2 and the third lens L3 to mention
High imaging quality.
Table 1 shows radius of curvature R, thickness T, refractive index Nd and the Abbe of each lens of the optical lens of embodiment 1
Number Vd, wherein radius of curvature R and the unit of thickness T are millimeter (mm).
Table 1
| Face number | Radius of curvature R | Thickness T | Refractive index Nd | Abbe number Vd |
| 1 | 12.0000 | 1.5000 | 1.52 | 64.21 |
| 2 | 4.5000 | 1.6000 | ||
| 3 | 7.0000 | 3.0000 | 1.88 | 40.81 |
| 4 | -200.0000 | 0.4000 | ||
| STO | It is infinite | 0.8000 | ||
| 6 | -25.0000 | 1.0000 | 1.85 | 23.79 |
| 7 | 15.0000 | 0.8000 | ||
| 8 | -15.0000 | 3.0000 | 1.88 | 40.81 |
| 9 | -6.5000 | 0.1700 | ||
| 10 | 6.3000 | 3.0000 | 1.50 | 81.55 |
| 11 | 25.0000 | 1.2000 | ||
| 12 | -9.0000 | 1.5000 | 1.85 | 23.79 |
| 13 | -20.0000 | 0.5600 | ||
| 14 | It is infinite | 0.9500 | 1.52 | 64.17 |
| 15 | It is infinite | 2.4900 | ||
| IMA | It is infinite |
The following table 2 gives the optics total length TTL of the optical lens of embodiment 1 (that is, from the object side S1 of the first lens L1
Center to the axis of imaging surface S16 on distance), the refractive index of the material of the whole group focal length value F of optical lens, the 6th lens L6
Nd6, the 5th lens L5 Refractive Index of Material vary with temperature variable quantity dn/dt (5), the 6th lens L6 object side S12
The radius of curvature R 13 of radius of curvature R 12 and its image side surface S13.
Table 2
| Parameter | F(mm) | TTL(mm) | Nd6 | dn/dt(5) | R12(mm) | R13(mm) |
| Numerical value | 9.509 | 21.970 | 1.85 | -1.91×10-5 | -9.000 | -20.000 |
In the present embodiment, meet between the optics total length TTL of optical lens and the whole group focal length value F of optical lens
TTL/F=2.310；And the 6th lens L6 object side S12 radius of curvature R 12 and its image side surface S13 radius of curvature R 13
Between meet R12/R13=0.450.
Embodiment 2
The optical lens according to the embodiment of the present application 2 is described referring to Fig. 2.In the present embodiment and following embodiment
In, for brevity, by clipped description similar to Example 1.Fig. 2 shows the optics according to the embodiment of the present application 2
The structural schematic diagram of camera lens.
As shown in Fig. 2, optical lens is along optical axis from object side to sequentially including the first lens L1, the second lens at image side
L2, the third lens L3, the 4th lens L4, the 5th lens L5 and the 6th lens L6.
First lens L1 is the meniscus lens with negative power, and object side S1 is convex surface, and image side surface S2 is concave surface.
Second lens L2 is the biconvex lens with positive light coke, and object side S3 and image side surface S4 are convex surface.
The third lens L3 is the biconcave lens with negative power, and object side S6 and image side surface S7 are concave surface.
4th lens L4 is the meniscus lens with positive light coke, and object side S8 is concave surface, and image side surface S9 is convex surface.
5th lens L5 is the biconvex lens with positive light coke, and object side S10 and image side surface S11 are convex surface.
6th lens L6 is the meniscus lens with negative power, and object side S12 is concave surface, and image side surface S13 is convex surface.
Optionally, which may also include optical filter L7 and/or protection with object side S14 and image side surface S15
Lens L7 '.Optical filter L7 can be used for correcting color error ratio.Protection lens L7 ' can be used for that the image positioned at imaging surface IMA is protected to pass
Sense chip.Light from object sequentially passes through each surface S1 to S15 and is ultimately imaged on imaging surface IMA.
In the optical lens of the present embodiment, diaphragm STO can be set between the second lens L2 and the third lens L3 to mention
High imaging quality.
The following table 3 show the radius of curvature R of each lens of the optical lens of embodiment 2, thickness T, refractive index Nd and Ah
Shellfish number Vd, wherein radius of curvature R and the unit of thickness T are millimeter (mm).The following table 4 gives the optical lens of embodiment 2
Optics total length TTL (that is, from distance on the center to the axis of imaging surface S16 of the object side S1 of the first lens L1), optical lens
Whole group focal length value F, the refractive index Nd6 of the material of the 6th lens L6, the 5th lens L5 Refractive Index of Material vary with temperature
The radius of curvature R 12 of the object side S12 of variable quantity dn/dt (5), the 6th lens L6 and the radius of curvature R 13 of its image side surface S13.
Table 3
| Face number | Radius of curvature R | Thickness T | Refractive index Nd | Abbe number Vd |
| 1 | 10.0000 | 1.5000 | 1.52 | 64.21 |
| 2 | 5.0000 | 1.0000 | ||
| 3 | 10.0000 | 2.0000 | 1.88 | 40.81 |
| 4 | -200.0000 | 0.4000 | ||
| STO | It is infinite | 0.8000 | ||
| 6 | -15.0000 | 1.0000 | 1.85 | 23.79 |
| 7 | 20.0000 | 0.8000 | ||
| 8 | -20.0000 | 3.0000 | 1.88 | 40.81 |
| 9 | -7.0000 | 0.1700 | ||
| 10 | 6.3000 | 3.0000 | 1.50 | 81.55 |
| 11 | -30.0000 | 1.2000 | ||
| 12 | -8.5000 | 1.5000 | 1.85 | 23.79 |
| 13 | -24.0000 | 0.5600 | ||
| 14 | It is infinite | 0.9500 | 1.52 | 64.17 |
| 15 | It is infinite | 4.1677 | ||
| IMA | It is infinite |
Table 4
| Parameter | F(mm) | TTL(mm) | Nd6 | dn/dt(5) | R12(mm) | R13(mm) |
| Numerical value | 9.497 | 22.048 | 1.85 | -1.91×10-5 | -8.500 | -24.000 |
In the present embodiment, meet between the optics total length TTL of optical lens and the whole group focal length value F of optical lens
TTL/F=2.322；And the 6th lens L6 object side S12 radius of curvature R 12 and its image side surface S13 radius of curvature R 13
Between meet R12/R13=0.354.
To sum up, embodiment 1 to embodiment 2 meets relationship shown in following table 5 respectively.
Table 5
| Conditional/embodiment | 1 | 2 |
| TTL/F | 2.310 | 2.322 |
| R12/R13 | 0.450 | 0.354 |
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art
Member is it should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
Any combination and the other technical solutions formed.Such as features described above has similar function with (but being not limited to) disclosed herein
Can technical characteristic replaced mutually and the technical solution that is formed.
Claims (9)
1. optical lens, along optical axis by object side to image side sequentially include: the first lens, the second lens, the third lens, the 4th thoroughly
Mirror, the 5th lens and the 6th lens,
It is characterized in that,
First lens have negative power, and object side is convex surface, and image side surface is concave surface；
Second lens have positive light coke, and object side and image side surface are convex surface；
The third lens have negative power, and object side and image side surface are concave surface；
4th lens have positive light coke, and object side is concave surface, and image side surface is convex surface；
5th lens have positive light coke；And
6th lens have negative power, and image side surface is concave surface, and image side surface is convex surface.
2. optical lens according to claim 1, which is characterized in that the object side of the 5th lens is convex surface, image side
Face is concave surface.
3. optical lens according to claim 1, which is characterized in that the object side of the 5th lens and image side surface are
Convex surface.
4. optical lens according to claim 1, which is characterized in that further include setting in second lens and described the
Diaphragm between three lens.
5. optical lens described in any one of -4 according to claim 1, which is characterized in that the object side of first lens
Center to the optical lens distance TTL of the imaging surface on the optical axis and the optical lens whole group focal length value F it
Between meet: TTL/F≤2.8.
6. optical lens described in any one of -4 according to claim 1, which is characterized in that the material of the 5th lens reflects
The variable quantity that rate varies with temperature meets dn/dt (5)≤- 5 × 10-6。
7. optical lens described in any one of -4 according to claim 1, which is characterized in that the object side of the 6th lens is bent
Meet between rate radius R12 and its image side surface radius of curvature R 13: 0.1≤R12/R13≤0.8.
8. optical lens described in any one of -4 according to claim 1, which is characterized in that the material of the 6th lens reflects
Rate Nd6 is more than or equal to 1.65.
9. optical lens, along optical axis by object side to image side sequentially include: the first lens, the second lens, the third lens, the 4th thoroughly
Mirror, the 5th lens and the 6th lens,
It is characterized in that,
First lens, the third lens and the 6th lens all have negative power；
Second lens, the 4th lens and the 5th lens all have positive light coke；
The object side of 5th lens is convex surface；And
The center of the object side of first lens to the optical lens distance TTL and institute of the imaging surface on the optical axis
It states and meets between the whole group focal length value F of optical lens: TTL/F≤2.8.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111123485A (en) * | 2020-04-01 | 2020-05-08 | 瑞声通讯科技(常州)有限公司 | Image pickup optical lens |
| WO2021102744A1 (en) * | 2019-11-27 | 2021-06-03 | 天津欧菲光电有限公司 | Camera lens assembly, image capture module, and electronic device |
| CN113777752A (en) * | 2021-09-10 | 2021-12-10 | 天津欧菲光电有限公司 | Optical system, image capturing module and electronic equipment |
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