CN109960005A - Pick-up lens and electronic device - Google Patents
Pick-up lens and electronic device Download PDFInfo
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- CN109960005A CN109960005A CN201711404884.7A CN201711404884A CN109960005A CN 109960005 A CN109960005 A CN 109960005A CN 201711404884 A CN201711404884 A CN 201711404884A CN 109960005 A CN109960005 A CN 109960005A
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- lens
- pick
- positive light
- object side
- light coke
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- 239000000571 coke Substances 0.000 claims abstract description 66
- 230000003287 optical effect Effects 0.000 claims abstract description 24
- 238000003384 imaging method Methods 0.000 claims abstract description 11
- 230000008901 benefit Effects 0.000 abstract description 6
- 230000004075 alteration Effects 0.000 description 23
- 238000010586 diagram Methods 0.000 description 11
- 238000009738 saturating Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 201000009310 astigmatism Diseases 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 230000004304 visual acuity Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- 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
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/008—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras designed for infrared light
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/02—Telephoto objectives, i.e. systems of the type + - in which the distance from the front vertex to the image plane is less than the equivalent focal length
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/14—Optical objectives specially designed for the purposes specified below for use with infrared or ultraviolet radiation
-
- 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)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Lenses (AREA)
Abstract
The invention discloses a kind of pick-up lens and electronic devices.Pick-up lens includes the multiple refractive lenses being sequentially arranged along the optical axis of pick-up lens and cutoff filter.At least two in multiple lens have positive light coke, and at least one of multiple lens have negative power.Pick-up lens meets conditional: 0.75≤TTL/F≤1.25；Wherein, F is the effective focal length of pick-up lens, and TTL is distance on pick-up lens outermost object side to the axis of the imaging surface of pick-up lens.By above-mentioned design, the pick-up lens of embodiment of the present invention has the advantages that high-resolution, extra-thin, and can be used as telephoto lens use.
Description
Technical field
The present invention relates to optical image technology, in particular to a kind of pick-up lens and electronic device.
Background technique
The appearance of the small type mobile devices of such as smart phone and plate etc is resulted in for being integrated in these equipment
In the high-resolution of camera, the demand of slimming increasingly promotes.However, due to the limitation of traditional camera technology, compared to making
For the attainable resolution ratio of larger camera institute or the quality of image, the general resolution ratio of compact camera or the quality of image compared with
It is low.If wishing, compact camera reaches high-resolution, need using the small photosensitive element of Pixel Dimensions and it is ultrathin, high-resolution at
As lens system.The progress of technology has been realized in the reduction of photosensitive element Pixel Dimensions, but to ultrathin, high-resolution imaging
The demand of lens system is also being continuously increased.
Summary of the invention
Embodiment of the present invention provides a kind of pick-up lens and electronic device.
The pick-up lens of embodiment of the present invention, including the multiple refractions being sequentially arranged along the optical axis of the pick-up lens
Type lens and cutoff filter, at least two in multiple lens have a positive light coke, in multiple lens
At least one meets conditional with negative power, the pick-up lens:
0.75≤TTL/F≤1.25；
Wherein, F is the effective focal length of the pick-up lens, and TTL is the outermost object side of the pick-up lens to described
Distance on the axis of the imaging surface of pick-up lens.
By above-mentioned design, the pick-up lens of embodiment of the present invention has the advantages that high-resolution, extra-thin, and can make
For telephoto lens use.
In some embodiments, multiple lens include: in order along optical axis from the object side to image side
The first lens with positive light coke；
The second lens with positive light coke；
The third lens with negative power；
The 4th lens with positive light coke；And
The 5th lens with negative power.
In the pick-up lens of embodiment of the present invention, since multiple lens with positive light coke and negative power mix row
Column, meet pick-up lens to high-resolution, the demand of ultrathin, and can guarantee that pick-up lens has preferably at image quality
Amount.
In some embodiments, the pick-up lens meets conditional:
- 2.7≤f5/F≤- 0.2；
Wherein, f5 is the focal length of the 5th lens.
Meet the above conditions, so that the 5th lens have proper focal power, to cooperate pick-up lens entirety light
The configuration of focal power, and be conducive to correct aberration and astigmatism caused by the first lens to the 4th lens, promote pick-up lens
Resolving power.
In some embodiments, multiple lens include: in order along optical axis from the object side to image side
The first lens with positive light coke；
The second lens with positive light coke；
The third lens with negative power；
The 4th lens with negative power；
The 5th lens with positive light coke；And
The 6th lens with negative power.
In the pick-up lens of embodiment of the present invention, since multiple lens with positive light coke and negative power mix row
Column, meet pick-up lens to high-resolution, the demand of ultrathin, and can guarantee that pick-up lens has preferably at image quality
Amount.
In some embodiments, the pick-up lens meets conditional:
- 2.7≤f6/F≤- 0.2；
Wherein, f6 is the focal length of the 6th lens.
Meet the above conditions, so that the 6th lens have proper focal power, to cooperate pick-up lens entirety light
The configuration of focal power, and be conducive to correct aberration and astigmatism caused by the first lens to the 5th lens, promote pick-up lens
Resolving power.
In some embodiments, the pick-up lens meets conditional:
2.0≤FNO≤10；
Wherein, FNO is the coke ratio of the pick-up lens.
The pick-up lens of embodiment of the present invention can adjust coke ratio in the range of 2.0 to 10.0, and aberration may make to obtain
To good correction, the demand of further satisfaction high imaging quality.
In some embodiments, the pick-up lens meets conditional:
0.3≤f1/F≤2.0；
Wherein, f1 is the focal length of first lens.
Meet the above conditions, by the first power of lens of reasonable distribution, be conducive to the light path for shortening pick-up lens,
To reduce the overall length of pick-up lens, the ultrathin of pick-up lens is realized.
In some embodiments, the pick-up lens meets conditional:
- 0.9≤f3/F≤- 0.2；
Wherein, f3 is the focal length of the third lens.
Meet the above conditions, so that the third lens have proper focal power, to cooperate pick-up lens entirety light
The configuration of focal power keeps susceptibility lower, and is conducive to correct aberration caused by the first lens and the second lens.
The electronic device of embodiment of the present invention, comprising:
Image Sensor；And
Pick-up lens described in any of the above-described embodiment, the pick-up lens are aligned with the Image Sensor.
By above-mentioned design, the pick-up lens of the electronic device of embodiment of the present invention has high-resolution, extra-thin
Advantage, and can be used as telephoto lens use.
In some embodiments, the electronic device meets conditional:
1.5≤TTL/IMA≤3.1；
Wherein, IMA is the diagonal distance in effective image sensing area of the Image Sensor.
As TTL/IMA < 1.5, it is difficult to correct each aberration, especially curvature of the image, distortion aberration；As TTL/IMA >
When 3.1, the overall length of pick-up lens is too long, leads to the whole enlargement of pick-up lens.Meet the above conditions, can preferably correct
Each aberration, and it is able to achieve the ultrathin of pick-up lens.
The additional aspect and advantage of embodiment of the present invention will be set forth in part in the description, partially will be from following
Become obvious in description, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage can be from combining in description of the following accompanying drawings to embodiment
It will be apparent and be readily appreciated that, in which:
Fig. 1 is the structural schematic diagram of the pick-up lens of first embodiment of the invention；
Fig. 2 is the structural schematic diagram of the pick-up lens of second embodiment of the invention；
Fig. 3 is the structural schematic diagram of the pick-up lens of third embodiment of the invention；
Fig. 4 is the structural schematic diagram of the pick-up lens of four embodiment of the invention；
Fig. 5 is the structural schematic diagram of the pick-up lens of fifth embodiment of the invention；
Fig. 6 is the aberration diagram (mm) of pick-up lens in Fig. 1；
Fig. 7 is the aberration diagram (mm) of pick-up lens in Fig. 2；
Fig. 8 is the aberration diagram (mm) of pick-up lens in Fig. 3；
Fig. 9 is the aberration diagram (mm) of pick-up lens in Fig. 4；
Figure 10 is the aberration diagram (mm) of pick-up lens in Fig. 5；
Figure 11 is the structural schematic diagram of the electronic device of embodiment of the present invention.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for
Purpose is described, relative importance is not understood to indicate or imply or implicitly indicates the quantity of indicated technical characteristic.
" first " is defined as a result, the feature of " second " can explicitly or implicitly include one or more feature.?
In description of the invention, the meaning of " plurality " is two or more, unless otherwise specifically defined.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected or can mutually communicate；It can be directly connected, it can also be by between intermediary
It connects connected, can be the connection inside two elements or the interaction relationship of two elements.For the ordinary skill of this field
For personnel, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include fisrt feature right above second feature and oblique upper, or be merely representative of
First feature horizontal height is less than second feature.
Following disclosure provides many different embodiments or example is used to realize different structure of the invention.In order to
Simplify disclosure of the invention, hereinafter the component of specific examples and setting are described.Certainly, they are merely examples, and
And it is not intended to limit the present invention.In addition, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, itself not indicate between discussed various embodiments and/or setting
Relationship.In addition, the present invention provides various specific techniques and material example, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
Also referring to Fig. 1 to Fig. 5, pick-up lens 10 includes the multiple foldings being sequentially arranged along the optical axis of pick-up lens 10
Emitting lens and cutoff filter L7.At least two in multiple lens have positive light coke, in multiple lens at least
One has negative power.Pick-up lens 10 meets conditional:
0.75≤TTL/F≤1.25；
Wherein, F is the effective focal length of pick-up lens 10, and TTL is the outermost object side of pick-up lens 10 to pick-up lens
Distance on the axis of 10 imaging surface S15.
In other words, TTL/F can be any value in [0.75,1.25] range, for example, the value can for 0.75,
0.8,0.85,0.9,0.95,1,1.05,1.1,1.15,1.2,1.25 etc..
By above-mentioned design, the pick-up lens 10 of embodiment of the present invention has the advantages that high-resolution, extra-thin, and can
It is used as telephoto lens.
Fig. 1 and Fig. 2 are please referred to, in some embodiments, multiple lens are wrapped along optical axis in order from the object side to image side
It includes: the first lens L1, the second lens L2 with positive light coke, the third lens with negative power with positive light coke
L3, the 4th lens L4 with positive light coke and the 5th lens L5 with negative power.
There is first lens L1 object side S1 and image side surface S2, the second lens L2 to have object side S3 and image side surface S4, the
There is three lens L3 object side S5 and image side surface S6, the 4th lens L4 to have object side S7 and image side surface S8, the 5th lens L5 tool
There is object side S9 and image side surface S10.In this embodiment, the outermost object side of pick-up lens 10 is the first lens L1
Object side S1.
In the pick-up lens 10 of embodiment of the present invention, due to multiple lens mixing with positive light coke and negative power
Arrangement, meet pick-up lens 10 to high-resolution, the demand of ultrathin, and can guarantee pick-up lens 10 have preferably at
Image quality amount.
Fig. 1 and Fig. 2 are please referred to, in some embodiments, pick-up lens 10 further includes aperture diaphragm STO, aperture diaphragm
STO can be set on the surface of any one piece of lens, or be arranged before the first lens L1, or be arranged in any two pieces of lens
Between, or be arranged between the 5th lens L5 and cutoff filter L7.For example, aperture diaphragm STO setting exists in Fig. 1
On the object side S1 of first lens L1.In Fig. 2, aperture diaphragm STO is arranged on the image side surface S6 of the third lens L3.
When pick-up lens 10 is used to be imaged, the light of subject OBJ sending or reflection enters from object side direction to be taken the photograph
As camera lens 10, and sequentially pass through the first lens L1, the second lens L2, the third lens L3, the 4th lens L4, the 5th lens L5, with
And the cutoff filter L7 with object side S13 and image side surface S14, it finally converges on imaging surface S15.
Fig. 1 and Fig. 2 are please referred to, in some embodiments, multiple lens are wrapped along optical axis in order from the object side to image side
It includes: the first lens L1, the second lens L2 with positive light coke, the third lens with negative power with positive light coke
L3, the 4th lens L4 with positive light coke and the 5th lens L5 with negative power.Pick-up lens 10 meets condition
Formula:
- 2.7≤f5/F≤- 0.2；
Wherein, f5 is the focal length of the 5th lens L5.
In other words, f5/F can be any value in [- 2.7, -0.2] range, for example, the value can for -
2.7, -2.5, -2.3, -2.1, -1.9, -1.7, -1.5, -1.3, -1.1, -0.9, -0.7, -0.5, -
0.3, -0.2 etc..
Meet the above conditions, so that the 5th lens L5 has proper focal power, to cooperate pick-up lens 10 whole
The configuration of body focal power, and be conducive to correct aberration and astigmatism caused by the first lens L1 to the 4th lens L4, promotion is taken the photograph
As the resolving power of camera lens 10.
Fig. 3 to Fig. 5 is please referred to, in some embodiments, multiple lens are wrapped along optical axis in order from the object side to image side
It includes: the first lens L1, the second lens L2 with positive light coke, the third lens with negative power with positive light coke
L3, the 4th lens L4 with negative power, the 5th lens L5 with positive light coke and the with negative power the 6th are saturating
Mirror L6.
There is first lens L1 object side S1 and image side surface S2, the second lens L2 to have object side S3 and image side surface S4, the
There is three lens L3 object side S5 and image side surface S6, the 4th lens L4 to have object side S7 and image side surface S8, the 5th lens L5 tool
There are object side S9 and image side surface S10, the 6th lens L6 that there is object side S11 and image side surface S12.In this embodiment, it images
The outermost object side of camera lens 10 is the object side S1 of the first lens L1.
In the pick-up lens 10 of embodiment of the present invention, due to multiple lens mixing with positive light coke and negative power
Arrangement, meet pick-up lens 10 to high-resolution, the demand of ultrathin, and can guarantee pick-up lens 10 have preferably at
Image quality amount.
Fig. 3 to Fig. 5 is please referred to, in some embodiments, pick-up lens 10 further includes aperture diaphragm STO.Aperture diaphragm
STO can be set on the surface of any one piece of lens, or be arranged before the first lens L1, or be arranged in any two pieces of lens
Between, or be arranged between the 6th lens L6 and cutoff filter L7.For example, aperture diaphragm STO is set in Fig. 3, Fig. 4
It sets on the object side S1 of the first lens L1.In Fig. 5, aperture diaphragm STO is arranged on the object side S3 of the second lens L2.
When pick-up lens 10 is used to be imaged, the light of subject OBJ sending or reflection enters from object side direction to be taken the photograph
As camera lens 10, and sequentially pass through the first lens L1, the second lens L2, the third lens L3, the 4th lens L4, the 5th lens L5, the
Six lens L6 and cutoff filter L7 with object side S13 and image side surface S14, finally converge to imaging surface S15
On.
Fig. 3 to Fig. 5 is please referred to, in some embodiments, multiple lens are wrapped along optical axis in order from the object side to image side
It includes: the first lens L1, the second lens L2 with positive light coke, the third lens with negative power with positive light coke
L3, the 4th lens L4 with negative power, the 5th lens L5 with positive light coke and the with negative power the 6th are saturating
Mirror L6.Pick-up lens 10 meets conditional:
- 2.7≤f6/F≤- 0.2；
Wherein, f6 is the focal length of the 6th lens L6.
In other words, f6/F can be any value in [- 2.7, -0.2] range, for example, the value can for -
2.7, -2.5, -2.3, -2.1, -1.9, -1.7, -1.5, -1.3, -1.1, -0.9, -0.7, -0.5, -
0.3, -0.2 etc..
Meet the above conditions, so that the 6th lens L6 has proper focal power, to cooperate pick-up lens 10 whole
The configuration of body focal power, and be conducive to correct aberration and astigmatism caused by the first lens L1 to the 5th lens L5, promotion is taken the photograph
As the resolving power of camera lens 10.
Also referring to Fig. 1 to Fig. 5, in some embodiments, pick-up lens 10 of the Fig. 1 into Fig. 5 is all satisfied condition
Formula:
2.0≤FNO≤10.0；
Wherein, FNO is the coke ratio of pick-up lens 10.
In other words, FNO can be any value in [2.0,10.0] range, for example, the value can for 2,2.5,3,
4,5,6,7,8,9,9.5,10 etc..
Specifically, pick-up lens 10 can adjust coke ratio (i.e. f-number) by aperture diaphragm STO.Such as: pick-up lens
Coke ratio can be adjusted to 2.4,2.5,2.8 etc. by aperture diaphragm STO by 10.
The pick-up lens 10 of embodiment of the present invention can adjust coke ratio in the range of 2.0 to 10.0, may make aberration
Obtain good correction, the demand of further satisfaction high imaging quality.
In some embodiments, pick-up lens 10 of the Fig. 1 into Fig. 5 is all satisfied conditional:
0.3≤f1/F≤2.0；
Wherein, f1 is the focal length of the first lens L1.
In other words, f1/F can be any value in [0.3,2.0] range, for example, the value can for 0.3,0.5,
0.7,0.9,1.1,1.3,1.5,1.7,1.9,2.0 etc..
Meet the above conditions, by the focal power of the first lens of reasonable distribution L1, is conducive to shorten pick-up lens 10
Light path realizes the ultrathin of pick-up lens 10 to reduce the overall length of pick-up lens 10.
In some embodiments, pick-up lens 10 of the Fig. 1 into Fig. 5 is all satisfied conditional:
- 0.9≤f3/F≤- 0.2；
Wherein, f3 is the focal length of the third lens L3.
In other words, f3/F can be any value in [- 0.9, -0.2] range, for example, the value can for -
0.9, -0.8, -0.7, -0.6, -0.5, -0.4, -0.3, -0.2, -0.1 etc..
Meet the above conditions, so that the third lens L3 has proper focal power, to cooperate pick-up lens 10 whole
The configuration of body focal power keeps susceptibility lower, and is conducive to correct aberration caused by the first lens L1 and the second lens L2.
Also referring to Fig. 1 to Fig. 5, in some embodiments, cutoff filter L7 of glass material by being made
Plate glass, cutoff filter L7 be used for adjust imaging wavelength of light section, be specifically used for isolation infrared light entrance
Image Sensor 20 (shown in Figure 11), to prevent infrared light from impacting to normal images color with clarity.
Fig. 1 and Fig. 2 are please referred to, in some embodiments, multiple lens are wrapped along optical axis in order from the object side to image side
It includes: the first lens L1, the second lens L2 with positive light coke, the third lens with negative power with positive light coke
L3, the 4th lens L4 with positive light coke and the 5th lens L5 with negative power.First lens L1 to the 5th lens
The material of L5 is plastics.
Since the first lens L1 to the 5th lens L5 is all made of plastic lens, pick-up lens 10 is effectively eliminating aberration, is expiring
While foot high pixel demand, ultrathin may be implemented, and cost is relatively low.
In some embodiments, the first lens L1, the second lens L2, the third lens L3, the 4th lens L4 and the 5th are saturating
Mirror L5 is aspherical mirror.
In this way, pick-up lens 10 can be effectively reduced by the radius of curvature and asphericity coefficient of each lens surface of adjusting
The total length of pick-up lens 10, and system aberration can be effectively corrected, improve image quality.
Fig. 3 to Fig. 5 is please referred to, in some embodiments, multiple lens are wrapped along optical axis in order from the object side to image side
It includes: the first lens L1, the second lens L2 with positive light coke, the third lens with negative power with positive light coke
L3, the 4th lens L4 with negative power, the 5th lens L5 with positive light coke and the with negative power the 6th are saturating
Mirror L6.The material of first lens L1 to the 6th lens L6 is plastics.
Since the first lens L1 to the 6th lens L6 is all made of plastic lens, pick-up lens 10 is effectively eliminating aberration, is expiring
While foot high pixel demand, ultrathin may be implemented, and cost is relatively low.
In some embodiments, the first lens L1, the second lens L2, the third lens L3, the 4th lens L4, the 5th lens
L5 and the 6th lens L6 is aspherical mirror.
In this way, pick-up lens 10 can be effectively reduced by the radius of curvature and asphericity coefficient of each lens surface of adjusting
The total length of pick-up lens 10, and system aberration can be effectively corrected, improve image quality.
Also referring to Fig. 1 to Fig. 5, aspherical face type is determined by following formula:
Wherein, Z is that (z-axis and optical axis (AX) are in the respective embodiments described above by sagging (sag) on the surface parallel with z-axis
It is consistent), r is the radial distance from vertex, and c is the curvature (inverse of radius of curvature) on apex surface, and k is that circular cone is normal
Number, A, B, C, D, E, F, G, H are asphericity coefficients.
First embodiment
Also referring to Fig. 1 and Fig. 6, in the first embodiment, multiple lens are from the object side to image side along optical axis by suitable
Sequence includes: that the first lens L1 with positive light coke, the second lens L2 with positive light coke, the third with negative power are saturating
Mirror L3, the 4th lens L4 with positive light coke and the 5th lens L5 with negative power.
The object side S1 of first lens L1 is convex surface, and image side surface S2 is concave surface.The object side S3 of second lens L2 is convex surface,
Image side surface S4 is concave surface.The object side S5 of the third lens L3 is convex surface, and image side surface S6 is concave surface.The object side S7 of 4th lens L4
For concave surface, image side surface S8 is convex surface.The object side S9 of 5th lens L5 is concave surface, and image side surface S10 is convex surface.
Pick-up lens 10 meets the condition of following table:
Table 1
| f1(mm) | 22.779 | F(mm) | 12.317 |
| f2(mm) | 5.669 | FNO | 2.8 |
| f3(mm) | -4.766 | HFOV(deg) | 11.5 |
| f4(mm) | 13.035 | ||
| f5(mm) | -31.074 |
Table 2
Table 3
Wherein, in table 1, f1 is the focal length of the first lens L1, and f2 is the focal length of the second lens L2, and f3 is the third lens L3's
Focal length, f4 are the focal length of the 4th lens L4, and f5 is the focal length of the 5th lens L5, and F is the effective focal length of pick-up lens 10, and FNO is
The coke ratio of pick-up lens 10, HFOV are the half of the field angle of pick-up lens 10.
Second embodiment
Referring to Figure 2 together and Fig. 7, in this second embodiment, multiple lens are from the object side to image side along optical axis by suitable
Sequence includes: that the first lens L1 with positive light coke, the second lens L2 with positive light coke, the third with negative power are saturating
Mirror L3, the 4th lens L4 with positive light coke and the 5th lens L5 with negative power.
The object side S1 of first lens L1 is convex surface.The object side S3 of second lens L2 is convex surface, and image side surface S4 is convex surface.
The object side S5 of the third lens L3 is concave surface, and image side surface S6 is concave surface.The object side S7 of 4th lens L4 is concave surface, image side surface S8
For convex surface.The object side S9 of 5th lens L5 is concave surface, and image side surface S10 is convex surface.
Pick-up lens 10 meets the condition of following table:
Table 4
| f1(mm) | 18.251 | F(mm) | 12.269 |
| f2(mm) | 6.216 | FNO | 2.5 |
| f3(mm) | -5.396 | HFOV(deg) | 11.5 |
| f4(mm) | 5.856 | ||
| f5(mm) | -5.297 |
Table 5
Table 6
Wherein, in table 4, f1 is the focal length of the first lens L1, and f2 is the focal length of the second lens L2, and f3 is the third lens L3's
Focal length, f4 are the focal length of the 4th lens L4, and f5 is the focal length of the 5th lens L5, and F is the effective focal length of pick-up lens 10, and FNO is
The coke ratio of pick-up lens 10, HFOV are the half of the field angle of pick-up lens 10.
Third embodiment
Also referring to Fig. 3 and Fig. 8, in the third embodiment, multiple lens are from the object side to image side along optical axis by suitable
Sequence includes: that the first lens L1 with positive light coke, the second lens L2 with positive light coke, the third with negative power are saturating
Mirror L3, the 4th lens L4 with negative power, the 5th lens L5 with positive light coke and the with negative power the 6th
Lens L6.
The object side S1 of first lens L1 is convex surface, and image side surface S2 is concave surface.The object side S3 of second lens L2 is convex surface,
Image side surface S4 is convex surface.The object side S5 of the third lens L3 is convex surface, and image side surface S6 is concave surface.The object side S7 of 4th lens L4
For concave surface, image side surface S8 is concave surface.The object side S9 of 5th lens L5 is concave surface, and image side surface S10 is convex surface.6th lens L6's
Object side S11 is concave surface, and image side surface S12 is convex surface.
Pick-up lens 10 meets the condition of following table:
Table 7
| f1(mm) | 7.374 | F(mm) | 12.341 |
| f2(mm) | 14.138 | FNO | 2.8 |
| f3(mm) | -8.699 | HFOV(deg) | 11.4 |
| f4(mm) | -10.024 | ||
| f5(mm) | 16.106 | ||
| f6(mm) | -28.149 |
Table 8
Table 9
Wherein, in table 7, f1 is the focal length of the first lens L1, and f2 is the focal length of the second lens L2, and f3 is the third lens L3's
Focal length, f4 are the focal length of the 4th lens L4, and f5 is the focal length of the 5th lens L5, and f6 is the focal length of the 6th lens L6, and F is camera lens
First 10 effective focal length, FNO are the coke ratio of pick-up lens 10, and HFOV is the half of the field angle of pick-up lens 10.
4th embodiment
Referring to Figure 4 together and Fig. 9, in the fourth embodiment, multiple lens are from the object side to image side along optical axis by suitable
Sequence includes: that the first lens L1 with positive light coke, the second lens L2 with positive light coke, the third with negative power are saturating
Mirror L3, the 4th lens L4 with negative power, the 5th lens L5 with positive light coke and the with negative power the 6th
Lens L6.
The object side S1 of first lens L1 is convex surface, and image side surface S2 is concave surface.The object side S3 of second lens L2 is convex surface,
Image side surface S4 is convex surface.The object side S5 of the third lens L3 is concave surface, and image side surface S6 is concave surface.The object side S7 of 4th lens L4
For concave surface, image side surface S8 is concave surface.The object side S9 of 5th lens L5 is concave surface, and image side surface S10 is convex surface.6th lens L6's
Object side S11 is concave surface, and image side surface S12 is convex surface.
Pick-up lens 10 meets the condition of following table:
Table 10
| f1(mm) | 5.407 | F(mm) | 10.608 |
| f2(mm) | 11.986 | FNO | 2.4 |
| f3(mm) | -5.414 | HFOV(deg) | 13.0 |
| f4(mm) | -6.864 | ||
| f5(mm) | 7.409 | ||
| f6(mm) | -10.907 |
Table 11
Table 12
Wherein, in table 10, f1 is the focal length of the first lens L1, and f2 is the focal length of the second lens L2, and f3 is the third lens L3
Focal length, f4 be the 4th lens L4 focal length, f5 be the 5th lens L5 focal length, f6 be the 6th lens L6 focal length, F be camera shooting
The effective focal length of camera lens 10, FNO are the coke ratio of pick-up lens 10, and HFOV is the half of the field angle of pick-up lens 10.
5th embodiment
Also referring to Fig. 5 and Figure 10, in the 5th embodiment, multiple lens are from the object side to image side along optical axis by suitable
Sequence includes: that the first lens L1 with positive light coke, the second lens L2 with positive light coke, the third with negative power are saturating
Mirror L3, the 4th lens L4 with negative power, the 5th lens L5 with positive light coke and the with negative power the 6th
Lens L6.
The object side S1 of first lens L1 is convex surface, and image side surface S2 is concave surface.The object side S3 of second lens L2 is convex surface,
Image side surface S4 is concave surface.The object side S5 of the third lens L3 is concave surface, and image side surface S6 is concave surface.The object side S7 of 4th lens L4
For convex surface, image side surface S8 is concave surface.The object side S9 of 5th lens L5 is convex surface, and image side surface S10 is convex surface.6th lens L6's
Object side S11 is concave surface, and image side surface S12 is convex surface.
Pick-up lens 10 meets the condition of following table:
Table 13
| f1(mm) | 6.354 | F(mm) | 10.780 |
| f2(mm) | 15.208 | FNO | 2.4 |
| f3(mm) | -3.970 | HFOV(deg) | 13.1 |
| f4(mm) | -52.283 | ||
| f5(mm) | 6.973 | ||
| f6(mm) | -13.375 |
Table 14
Table 15
Wherein, in table 13, f1 is the focal length of the first lens L1, and f2 is the focal length of the second lens L2, and f3 is the third lens L3
Focal length, f4 be the 4th lens L4 focal length, f5 be the 5th lens L5 focal length, f6 be the 6th lens L6 focal length, F be camera shooting
The effective focal length of camera lens 10, FNO are the coke ratio of pick-up lens 10, and HFOV is the half of the field angle of pick-up lens 10.
In first embodiment into the 5th embodiment, the Image Sensor 20 (shown in Figure 11) of selection is 12,000,000
Pixel, pixel size are 1 micron * 1 micron, and the diagonal distance in effective image sensing area is 5mm.
In the pick-up lens 10 of first embodiment to the 5th embodiment, there is positive light coke and negative light due to multiple
The lens of focal power mix arrangement, meet pick-up lens 10 to high-resolution, the demand of ultrathin, and can guarantee pick-up lens
10 have preferable image quality.Pick-up lens 10 can be used as ultrathin telephoto lens and use.
Figure 11 is please referred to, the pick-up lens 10 of embodiment of the present invention can be applied to the electronic device of embodiment of the present invention
100.In other words, electronic device 100 includes the pick-up lens 10 of Image Sensor 20 and any of the above-described embodiment.Pick-up lens
10 are aligned with Image Sensor 20.
Specifically, Image Sensor 20 can use complementary metal oxide semiconductor (CMOS, Complementary
Metal Oxide Semiconductor) Image Sensor or charge coupled cell (CCD, Charge-coupled
Device) Image Sensor.Pick-up lens 10 be aligned with Image Sensor 20 include: pick-up lens 10 optical axis and image sensing
The centre normal of device 20 is overlapped.
The electronic device 100 of embodiment of the present invention includes but is not limited to calculate for mobile phone, smart phone, plate
The electronic device of the supports such as machine, laptop computer, laptop, smartwatch imaging.
In the above-described embodiment, pick-up lens 10 can be applied individually to any in electronic device 100.In other embodiments
In, pick-up lens 10 (pick-up lens 10 of embodiment of the present invention is telephoto lens) can also be with the wide-angle lens with short focus
It is conjointly employed in electronic device 100, to achieve the effect that optical zoom.Specifically, when electronic device 100 is for obtaining image
When, user can select and switch between different shooting functions (taking the photograph remote or wide-angle) according to self-demand, and can take
With related algorithm to achieve the effect that optical zoom.
In some embodiments, electronic device 100 meets conditional:
1.5≤TTL/IMA≤3.1；
Wherein, IMA is the diagonal distance in effective image sensing area of Image Sensor 20.
In other words, TTL/IMA can be any value in [1.5,3.1] range, for example, the value can for 1.5,
1.7,1.9,2.1,2.3,2.5,2.7,2.9,3.1 etc..
As TTL/IMA < 1.5, it is difficult to correct each aberration, especially curvature of the image, distortion aberration；As TTL/IMA >
When 3.1, the overall length of pick-up lens 10 is too long, leads to the whole enlargement of pick-up lens 10.Meet the above conditions, it can be preferably
Each aberration is corrected, and is able to achieve the ultrathin of pick-up lens 10.
In the description of this specification, reference term " certain embodiments ", " embodiment ", " some embodiment party
The description of formula ", " exemplary embodiment ", " example ", " specific example " or " some examples " etc. means in conjunction with the embodiment party
Formula or example particular features, structures, materials, or characteristics described are contained at least one embodiment or example of the invention
In.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover,
Particular features, structures, materials, or characteristics described can be in any one or more embodiments or example with suitable
Mode combine.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one described feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two,
Three etc., unless otherwise specifically defined.
Although embodiments of the present invention have been shown and described above, it is to be understood that above embodiment is
Illustratively, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be right
Above embodiment is changed, modifies, replacement and variant, and the scope of the present invention is defined by the claims and their equivalents.
Claims (10)
1. a kind of pick-up lens, which is characterized in that the pick-up lens includes being sequentially arranged along the optical axis of the pick-up lens
Multiple refractive lenses and cutoff filter, at least two in multiple lens have positive light coke, Duo Gesuo
At least one of lens are stated with negative power, the pick-up lens meets conditional:
0.75≤TTL/F≤1.25；
Wherein, F is the effective focal length of the pick-up lens, and TTL is the outermost object side of the pick-up lens to the camera shooting
Distance on the axis of the imaging surface of camera lens.
2. pick-up lens according to claim 1, which is characterized in that multiple lens are from the object side to image side along optical axis
Include: in order
The first lens with positive light coke；
The second lens with positive light coke；
The third lens with negative power；
The 4th lens with positive light coke；And
The 5th lens with negative power.
3. pick-up lens according to claim 2, which is characterized in that the pick-up lens meets conditional:
- 2.7≤f5/F≤- 0.2；
Wherein, f5 is the focal length of the 5th lens.
4. pick-up lens according to claim 1, which is characterized in that multiple lens are from the object side to image side along optical axis
Include: in order
The first lens with positive light coke；
The second lens with positive light coke；
The third lens with negative power；
The 4th lens with negative power；
The 5th lens with positive light coke；And
The 6th lens with negative power.
5. pick-up lens according to claim 4, which is characterized in that the pick-up lens meets conditional:
- 2.7≤f6/F≤- 0.2；
Wherein, f6 is the focal length of the 6th lens.
6. pick-up lens described in -5 any one according to claim 1, which is characterized in that the pick-up lens meets condition
Formula:
2.0≤FNO≤10；
Wherein, FNO is the coke ratio of the pick-up lens.
7. according to pick-up lens described in claim 2-5 any one, which is characterized in that the pick-up lens meets condition
Formula:
0.3≤f1/F≤2.0；
Wherein, f1 is the focal length of first lens.
8. according to pick-up lens described in claim 2-5 any one, which is characterized in that the pick-up lens meets condition
Formula:
- 0.9≤f3/F≤- 0.2；
Wherein, f3 is the focal length of the third lens.
9. a kind of electronic device characterized by comprising
Image Sensor；And
Pick-up lens described in claim 1-8 any one, the pick-up lens are aligned with the Image Sensor.
10. electronic device according to claim 9, which is characterized in that the electronic device meets conditional:
1.5≤TTL/IMA≤3.1；
Wherein, IMA is the diagonal distance in effective image sensing area of the Image Sensor.
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| CN201711404884.7A CN109960005A (en) | 2017-12-22 | 2017-12-22 | Pick-up lens and electronic device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711404884.7A CN109960005A (en) | 2017-12-22 | 2017-12-22 | Pick-up lens and electronic device |
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