CN108983399A - Optical imagery eyeglass group - Google Patents
Optical imagery eyeglass group Download PDFInfo
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- CN108983399A CN108983399A CN201811167277.8A CN201811167277A CN108983399A CN 108983399 A CN108983399 A CN 108983399A CN 201811167277 A CN201811167277 A CN 201811167277A CN 108983399 A CN108983399 A CN 108983399A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 314
- 239000000571 coke Substances 0.000 claims abstract description 110
- 238000003384 imaging method Methods 0.000 claims description 66
- 238000009738 saturating Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 4
- 210000001747 pupil Anatomy 0.000 claims description 4
- 201000009310 astigmatism Diseases 0.000 description 23
- 238000005452 bending Methods 0.000 description 20
- 238000010586 diagram Methods 0.000 description 20
- 239000000463 material Substances 0.000 description 17
- 230000004075 alteration Effects 0.000 description 13
- 206010010071 Coma Diseases 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000012634 optical imaging Methods 0.000 description 2
- 102220414581 c.33A>G Human genes 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 102220036717 rs35917308 Human genes 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
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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
-
- 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
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
Abstract
This application discloses a kind of optical imagery eyeglass group, which sequentially includes: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens by object side to image side along optical axis.First lens have focal power；Second lens have positive light coke；The third lens have focal power, and image side surface is convex surface；4th lens have negative power；5th lens have focal power；6th lens have focal power, and object side is concave surface, and image side surface is convex surface；7th lens have positive light coke；And the 8th lens have focal power.
Description
Technical field
This application involves a kind of optical imagery eyeglass groups, more specifically, this application involves a kind of light including eight lens
It studies as lens set.
Background technique
In recent years, with the promotion required mobile phone software and hardware, the image quality for the imaging lens for being equipped on mobile phone is mentioned
Increasingly higher demands out.Other than requiring mobile lens that there are the basic parameters such as high pixel, high-resolution, increasingly require
Mobile lens can also have the characteristics that ultra-thin, large aperture, Wide-angle.Thus, for these features specific aim exploitation at
For the principal concern of current mobile lens design.
Theoretically, more spaces have been enabled the system to by adding multi-disc lens and freedom degree looks for optimal solution is
Improve one of most efficient method of optical system imaging quality.But contradictory with this to be, the increase pole of lens numbers, which will lead to, is
The size of system increases, and the trend of this and current mobile lens ultrathin is runed counter to.Thus, how under the premise of maintaining camera lens ultra-thin
The image quality for promoting camera lens is that item urgently to be resolved is studied in this field.
Summary of the invention
This application provides be applicable to portable electronic product, can at least solve or part solve it is in the prior art
The optical imagery eyeglass group of at least one above-mentioned disadvantage.
On the one hand, this application provides such a optical imagery eyeglass group, the optical imagery eyeglass group along optical axis by
Object side to image side sequentially includes: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the 7th
Lens and the 8th lens.First lens have positive light coke or negative power；Second lens can have positive light coke；The third lens
With positive light coke or negative power, image side surface can be convex surface；4th lens can have negative power；5th lens have just
Focal power or negative power；6th lens have positive light coke or negative power, and object side can be concave surface, and image side surface can be convex
Face；7th lens can have positive light coke；And the 8th lens have positive light coke or negative power.
In one embodiment, the object side of the second lens can be convex surface.
In one embodiment, the image side surface of the 4th lens can be concave surface.
In one embodiment, the object side of the 7th lens can be convex surface.
In one embodiment, the effective focal length f2 of the second lens and the effective focal length f7 of the 7th lens can meet 0 <
F2/f7 < 0.8.
In one embodiment, total effective focal length f of optical imagery eyeglass group and the effective focal length f4 of the 4th lens can
Meet -0.8 < f/f4 < 0.
In one embodiment, the 7th lens are in the object side of center thickness CT7 and the first lens on optical axis to light
1.5 < of < CT7/TTL × 10 2.5 can be met by studying distance TTL of the imaging surface as lens set on optical axis.
In one embodiment, the object side of maximum the effective radius DT61 and the 7th lens of the object side of the 6th lens
Maximum effective radius DT71 can meet 0.2 < DT61/DT71 < 0.7.
In one embodiment, the radius of curvature R 1, the curvature of the image side surface of the first lens of the object side of the first lens
The effective focal length f1 of radius R2 and the first lens can meet 0 < (R1+R2)/| f1 | < 0.5.
In one embodiment, the radius of curvature R 6 of the image side surface of the third lens and the effective focal length f3 of the third lens can
Meet 0 < | R6/f3 | < 0.8.
In one embodiment, the song of the image side surface of the radius of curvature R 15 and the 8th lens of the object side of the 8th lens
Rate radius R16 can meet -0.8 < R15/R16 < -0.3.
In one embodiment, the song of the object side of the radius of curvature R 12 and the 6th lens of the image side surface of the 6th lens
Rate radius R11 can meet 0.3 < R12/R11 < 1.3.
In one embodiment, total effective focal length f of optical imagery eyeglass group and the entrance pupil of optical imagery eyeglass group are straight
Diameter EPD can meet f/EPD < 2.0.
In one embodiment, the maximum angle of half field-of view HFOV of optical imagery eyeglass group can meet 40 ° of < HFOV <
50°。
In one embodiment, the object side of the first lens to optical imagery eyeglass group imaging surface on optical axis away from
Half ImgH from effective pixel area diagonal line length on TTL and the imaging surface of optical imagery eyeglass group can meet TTL/ImgH <
1.4。
In one embodiment, the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th are saturating
The combined focal length f123456 of mirror and total effective focal length f of optical imagery eyeglass group can meet 1.0 < f123456/f < 1.5.
In one embodiment, spacing distance T67 and the 7th lens on optical axis of the 6th lens and the 7th lens and
Spacing distance T78 of 8th lens on optical axis can meet 0.4 < T67/T78 < 1.0.
On the other hand, present invention also provides such a optical imagery eyeglass groups, and the optical imagery eyeglass group is along light
Axis by object side to image side sequentially include: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens,
7th lens and the 8th lens.First lens have positive light coke or negative power；Second lens can have positive light coke；Third
Lens have positive light coke or negative power；4th lens can have negative power；5th lens have positive light coke or negative light
Focal power；6th lens have positive light coke or negative power, and object side can be concave surface, and image side surface can be convex surface；7th lens
There can be positive light coke；And the 8th lens have positive light coke or negative power.Wherein, the object side of the first lens is to optics
Distance TTL of the imaging surface of imaging lens group on optical axis and effective pixel area on the imaging surface of optical imagery eyeglass group are diagonal
The half ImgH of wire length can meet TTL/ImgH < 1.4.
Another aspect, present invention also provides such a optical imagery eyeglass groups, and the optical imagery eyeglass group is along light
Axis by object side to image side sequentially include: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens,
7th lens and the 8th lens.First lens have positive light coke or negative power；Second lens can have positive light coke；Third
Lens have positive light coke or negative power；4th lens can have negative power；5th lens have positive light coke or negative light
Focal power；6th lens have positive light coke or negative power, and object side can be concave surface, and image side surface can be convex surface；7th lens
There can be positive light coke；And the 8th lens have positive light coke or negative power.Wherein, optical imagery eyeglass group maximum half
Field angle HFOV can meet 40 ° of 50 ° of < HFOV <.
Another aspect, present invention also provides such a optical imagery eyeglass groups, and the optical imagery eyeglass group is along light
Axis by object side to image side sequentially include: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens,
7th lens and the 8th lens.First lens have positive light coke or negative power；Second lens can have positive light coke；Third
Lens have positive light coke or negative power；4th lens can have negative power；5th lens have positive light coke or negative light
Focal power；6th lens have positive light coke or negative power, and object side can be concave surface, and image side surface can be convex surface；7th lens
There can be positive light coke；And the 8th lens have positive light coke or negative power.Wherein, the curvature of the object side of the 8th lens
The radius of curvature R 16 of the image side surface of radius R15 and the 8th lens can meet -0.8 < R15/R16 < -0.3.
Another aspect, present invention also provides such a optical imagery eyeglass groups, and the optical imagery eyeglass group is along light
Axis by object side to image side sequentially include: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens,
7th lens and the 8th lens.First lens have positive light coke or negative power；Second lens can have positive light coke；Third
Lens have positive light coke or negative power；4th lens can have negative power；5th lens have positive light coke or negative light
Focal power；6th lens have positive light coke or negative power, and object side can be concave surface, and image side surface can be convex surface；7th lens
There can be positive light coke；And the 8th lens have positive light coke or negative power.Wherein, the maximum of the object side of the 6th lens
The maximum effective radius DT71 of the object side of effective radius DT61 and the 7th lens can meet 0.2 < DT61/DT71 < 0.7.
Another aspect, present invention also provides such a optical imagery eyeglass groups, and the optical imagery eyeglass group is along light
Axis by object side to image side sequentially include: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens,
7th lens and the 8th lens.First lens have positive light coke or negative power；Second lens can have positive light coke；Third
Lens have positive light coke or negative power；4th lens can have negative power；5th lens have positive light coke or negative light
Focal power；6th lens have positive light coke or negative power, and object side can be concave surface, and image side surface can be convex surface；7th lens
There can be positive light coke；And the 8th lens have positive light coke or negative power.Wherein, the 7th lens are in the center on optical axis
The imaging surface of thickness CT7 and the object side of the first lens to optical imagery eyeglass group distance TTL on optical axis can meet 1.5 <
The < of CT7/TTL × 10 2.5.
Another aspect, present invention also provides such a optical imagery eyeglass groups, and the optical imagery eyeglass group is along light
Axis by object side to image side sequentially include: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens,
7th lens and the 8th lens.First lens have positive light coke or negative power；Second lens can have positive light coke；Third
Lens have positive light coke or negative power；4th lens can have negative power；5th lens have positive light coke or negative light
Focal power；6th lens have positive light coke or negative power, and object side can be concave surface, and image side surface can be convex surface；7th lens
There can be positive light coke；And the 8th lens have positive light coke or negative power.Wherein, the 6th lens and the 7th lens are in light
The spacing distance T78 of spacing distance T67 and the 7th lens and the 8th lens on optical axis on axis can meet 0.4 < T67/T78
< 1.0.
The application use eight lens, by each power of lens of reasonable distribution, face type, each lens center thickness
And spacing etc. on the axis between each lens, so that above-mentioned optical imagery eyeglass group has, ultra-thin, light passing amount is big, areas imaging is wide
With miniaturization etc. at least one beneficial effect.
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 shows the structural schematic diagram of the optical imagery eyeglass group according to the embodiment of the present application 1；
Fig. 2A to Fig. 2 D respectively illustrates chromatic curve on the axis of the optical imagery eyeglass group of embodiment 1, astigmatism curve, abnormal
Varied curve and ratio chromatism, curve；
Fig. 3 shows the structural schematic diagram of the optical imagery eyeglass group according to the embodiment of the present application 2；
Fig. 4 A to Fig. 4 D respectively illustrates chromatic curve on the axis of the optical imagery eyeglass group of embodiment 2, astigmatism curve, abnormal
Varied curve and ratio chromatism, curve；
Fig. 5 shows the structural schematic diagram of the optical imagery eyeglass group according to the embodiment of the present application 3；
Fig. 6 A to Fig. 6 D respectively illustrates chromatic curve on the axis of the optical imagery eyeglass group of embodiment 3, astigmatism curve, abnormal
Varied curve and ratio chromatism, curve；
Fig. 7 shows the structural schematic diagram of the optical imagery eyeglass group according to the embodiment of the present application 4；
Fig. 8 A to Fig. 8 D respectively illustrates chromatic curve on the axis of the optical imagery eyeglass group of embodiment 4, astigmatism curve, abnormal
Varied curve and ratio chromatism, curve；
Fig. 9 shows the structural schematic diagram of the optical imagery eyeglass group according to the embodiment of the present application 5；
Figure 10 A to Figure 10 D respectively illustrate chromatic curve on the axis of the optical imagery eyeglass group of embodiment 5, astigmatism curve,
Distortion curve and ratio chromatism, curve；
Figure 11 shows the structural schematic diagram of the optical imagery eyeglass group according to the embodiment of the present application 6；
Figure 12 A to Figure 12 D respectively illustrate chromatic curve on the axis of the optical imagery eyeglass group of embodiment 6, astigmatism curve,
Distortion curve and ratio chromatism, curve；
Figure 13 shows the structural schematic diagram of the optical imagery eyeglass group according to the embodiment of the present application 7；
Figure 14 A to Figure 14 D respectively illustrate chromatic curve on the axis of the optical imagery eyeglass group of embodiment 7, astigmatism curve,
Distortion curve and ratio chromatism, curve；
Figure 15 shows the structural schematic diagram of the optical imagery eyeglass group according to the embodiment of the present application 8；
Figure 16 A to Figure 16 D respectively illustrate chromatic curve on the axis of the optical imagery eyeglass group of embodiment 8, astigmatism curve,
Distortion curve and ratio chromatism, curve；
Figure 17 shows the structural schematic diagrams according to the optical imagery eyeglass group of the embodiment of the present application 9；
Figure 18 A to Figure 18 D respectively illustrate chromatic curve on the axis of the optical imagery eyeglass group of embodiment 9, astigmatism curve,
Distortion curve and ratio chromatism, curve；
Figure 19 shows the structural schematic diagram of the optical imagery eyeglass group according to the embodiment of the present application 10；
It is bent that Figure 20 A to Figure 20 D respectively illustrates chromatic curve on the axis of the optical imagery eyeglass group of embodiment 10, astigmatism
Line, distortion curve and ratio chromatism, curve.
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.Each lens are known as this thoroughly near the surface of subject
The object side of mirror, each lens are known as the image side surface of the lens near the surface of imaging 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 imagery eyeglass group according to the application illustrative embodiments may include such as eight saturating with focal power
Mirror, that is, the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th are thoroughly
Mirror.This eight lens by object side to image side sequential, can have airspace between each adjacent lens along optical axis.
In the exemplary embodiment, the first lens have positive light coke or negative power；Second lens can have positive light
Focal power；The third lens have positive light coke or negative power, and image side surface can be convex surface；4th lens can have negative power；
5th lens have positive light coke or negative power；6th lens have positive light coke or negative power, and object side can be recessed
Face, image side surface can be convex surface；7th lens can have positive light coke；8th lens have positive light coke or negative power.Pass through
Positive light coke is set by the second lens, the ability of lens set correction aberration can be effectively improved and the sensibility of system can be reduced,
Further the negative power of the 4th lens of cooperation and the positive light coke of the 7th lens are beneficial to the focal power point of entire lens set
Match, avoid focal power concentrations, while additionally aiding balance lens set chromatic longitudiinal aberration and lateral chromatic aberration.By the picture of the third lens
Lateral layout is convex surface, can effectively cooperate the first lens and the second lens to reduce system spherical aberration and improve system aberration correction energy
Power.And the 6th lens design can contribute to the areas imaging of expansion system at concaveconvex structure, increase image height, realizes that system is high
The characteristics of image height.
In the exemplary embodiment, the object side of the first lens can be convex surface, and image side surface can be concave surface.
In the exemplary embodiment, the object side of the second lens can be convex surface.By the way that the object side of the second lens is set
It is calculated as convex surface, the second lens can be made to undertake positive focal power, and the aberration of whole system can be effectively reduced, reduces system sensitive
Degree improves system yield, while being also beneficial to the processing and assembling of subsequent structural.
In the exemplary embodiment, the image side surface of the 4th lens can be concave surface.4th lens image side surface is designed as recessed
Face makes the 4th lens undertake negative focal power, helps to improve the aberration correction ability of system.
In the exemplary embodiment, the 7th lens object side can be convex surface.It is convex surface by the 7th lens object lateral layout,
The 7th lens can be made to undertake a degree of positive light coke, and can the part focal power of sharing system excessively collect to avoid focal power
In.
In the exemplary embodiment, the 8th lens can have negative power, and object side and image side surface can be concave surface.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet conditional f/EPD < 2.0, wherein
F is total effective focal length of optical imagery eyeglass group, and EPD is the Entry pupil diameters of optical imagery eyeglass group.More specifically, f and EPD into
One step can meet 1.6 < f/EPD < 2.0, such as 1.70≤f/EPD≤1.98.Control meets conditional f/EPD < 2.0, can have
Effect increase the camera lens unit time in light passing amount, make camera lens relative illumination with higher, and can preferably be promoted camera lens compared with
Image quality under dark situation, makes camera lens have more practicability.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet 40 ° of 50 ° of < HFOV < of conditional,
Wherein, HFOV is the maximum angle of half field-of view of optical imagery eyeglass group.More specifically, HFOV can further meet 43 ° of < HFOV <
48 °, such as 45.2 °≤HFOV≤47.1 °.By regulating system field angle side can be avoided while improving system imaging image height
The aberration of edge visual field is excessive, helps that the feature that system imaging range is wide, image quality is high is better achieved.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet 0 < f2/f7 < 0.8 of conditional,
In, f2 is the effective focal length of the second lens, and f7 is the effective focal length of the 7th lens.More specifically, f2 and f7 can further meet
0.25≤f2/f7≤0.59.By rationally adjusting the effective focal length of the second lens and the 7th lens, first effect is so that mirror
The focal power of piece group is more reasonably distributed, and the concentrations on the 7th lens are unlikely to, and is conducive to the imaging of lifting system
Quality and the susceptibility for reducing system；Second effect is exactly to effectively keep the ultra-thin characteristic of lens set.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet -0.8 < f/f4 < 0 of conditional,
In, f is total effective focal length of optical imagery eyeglass group, and f4 is the effective focal length of the 4th lens.More specifically, f and f4 are further
- 0.64≤f/f4≤- 0.19 can be met.By rationally controlling total effective focal length of lens set and the effective focal length of the 4th lens
Ratio can control the spherical aberration contribution amount of the 4th lens in reasonable range, so that the Zhou Shang visual field area of optical system be made to have
There is more preferably image quality.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet 0 < of conditional (R1+R2)/| f1 |
< 0.5, wherein R1 is the radius of curvature of the object side of the first lens, and R2 is the radius of curvature of the image side surface of the first lens, and f1 is
The effective focal length of first lens.More specifically, R1, R2 and f1 can further meet 0 < (R1+R2)/| f1 | < 0.1, such as
0.03≤(R1+R2)/|f1|≤0.08.The rationally radius of curvature and its effective coke of the first lens object side of control and image side surface
Away from, it can effectively reduce system dimension, and system focal power can be made to obtain an equitable breakdown to avoid concentrations on the first lens,
The aberration of correction back lens is also helped simultaneously, and is conducive to the first lens and is kept good technique processability.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet 0 < of conditional | R6/f3 | < 0.8,
Wherein, R6 is the radius of curvature of the image side surface of the third lens, and f3 is the effective focal length of the third lens.More specifically, R6 and f3 into
One step can meet 0.17≤| R6/f3 |≤0.61.By rationally controlling the image side curvature radius and effective focal length of the third lens,
Can by the astigmatism of the third lens, coma contribution amount control in the reasonable scope, and can effectively balancing front-ends lens institute it is remaining
Astigmatism and coma, to make lens set that there is better image quality.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet conditional TTL/ImgH < 1.4,
In, TTL is the object side of the first lens to distance of the imaging surface on optical axis of optical imagery eyeglass group, and ImgH is optical imagery
The half of effective pixel area diagonal line length on the imaging surface of lens set.More specifically, TTL and ImgH can further meet 1.0
< TTL/ImgH < 1.4, such as 1.27≤TTL/ImgH≤1.35.Meet conditional TTL/ImgH < 1.4, can effectively reduce mirror
The overall size of piece group realizes ultra-slim features and the miniaturization of lens set, so that lens set can be preferably suitable for ultra-thin
Change portable electronic product.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet 0.3 < R12/R11 < of conditional
1.3, wherein R12 is the radius of curvature of the image side surface of the 6th lens, and R11 is the radius of curvature of the object side of the 6th lens.More
Body, R12 and R11 can further meet 0.54≤R12/R11≤1.14.Pass through the 6th lens object side of reasonable distribution and image side
The radius of curvature in face, can astigmatism and coma between the 6th lens of active balance and front lens, so that camera lens is had more preferably
Image quality.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet -0.8 < R15/R16 < of conditional -
0.3, wherein R15 is the radius of curvature of the object side of the 8th lens, and R16 is the radius of curvature of the image side surface of the 8th lens.More
Body, R15 and R16 can further meet -0.71≤R15/R16≤- 0.41.Pass through the 8th lens object side of reasonable distribution and picture
The radius of curvature of side, can astigmatism and coma between the 8th lens of active balance and front lens, cooperate the object of the 7th lens
Side convex surface can make camera lens keep better image quality, be conducive to increase lens set at the same time in the image height of imaging surface.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet 0.2 < DT61/DT71 < of conditional
0.7, wherein DT61 is the maximum effective radius of the object side of the 6th lens, and DT71 is that the maximum of the object side of the 7th lens has
Imitate radius.More specifically, DT61 and DT71 can further meet 0.35≤DT61/DT71≤0.65, such as 0.50≤DT61/
DT71≤0.64.It, can by rationally controlling the effective radius of the 6th lens object side and the effective radius of the 7th lens object side
It effectively increases the light passing amount of lens set and the relative illumination of system edges visual field can be increased, enable the system in dark
The image quality still having had under environment.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet 1.5 CT7/TTL × 10 < of conditional
< 2.5, wherein CT7 is the 7th lens in the center thickness on optical axis, and TTL is the object side of the first lens to optical imaging lens
Distance of the imaging surface of piece group on optical axis.More specifically, CT7 and TTL can further meet 1.74≤CT7/TTL × 10≤
2.27.Rationally the 7th lens of control are conducive to system compact in the center thickness on optical axis, can also reduce the wind for generating ghost image
Danger；Cooperate the 5th lens and the 6th lens to can effectively reduce system color difference simultaneously, while also can avoid due to the 7th lens are excessively thin
System performance is caused to decline.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet 1.0 < f123456/f < of conditional
1.5, wherein f123456 is the first lens, the second lens, the third lens, the group of the 4th lens, the 5th lens and the 6th lens
Complex focus, f are total effective focal length of optical imagery eyeglass group.More specifically, f123456 and f can further meet 1.03≤
f123456/f≤1.20.By rationally adjusting the first lens to the combined focal length of the 6th lens and the ratio of optical system total focal length
Value, the focal power of system is more distributed on the first lens to the 6th lens, and the aberration that can preferably improve system is rectified
Positive ability, while can also effectively reduce lens set is dimensioned to keep ultra-thin characteristic.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet 0.4 < T67/T78 < of conditional
1.0, wherein T67 is the spacing distance of the 6th lens and the 7th lens on optical axis, and T78 is that the 7th lens and the 8th lens exist
Spacing distance on optical axis.More specifically, T67 and T78 can further meet 0.47≤T67/T78≤0.91.By rationally controlling
The spacing distance for making the spacing distance and the 7th lens and the 8th lens between the 6th lens and the 7th lens, can effectively reduce
System generates the risk of ghost image, and helps to compress the size of lens set.
In the exemplary embodiment, above-mentioned optical imagery eyeglass group may also include at least one diaphragm, with improving optical
The image quality of imaging lens group.Optionally, diaphragm may be provided between object side and the first lens.
Optionally, above-mentioned optical imagery eyeglass group may also include optical filter for correcting color error ratio and/or for protecting
Shield is located at the protection glass of the photosensitive element on imaging surface.
Multi-disc eyeglass can be used according to the optical imagery eyeglass group of the above embodiment of the application, such as described above
Eight.By each power of lens of reasonable distribution, face type, each lens center thickness and each lens between axis on spacing
Deng, can effectively reduce optical imagery eyeglass group volume, reduce optical imagery eyeglass group susceptibility and improve optical imagery
The machinability of lens set, so that optical imagery eyeglass group, which is more advantageous to, produces and processes and be applicable to portable electronic production
Product.Optical imagery eyeglass group through the above configuration can also have ultra-thin, large aperture, larger field angle and high imaging quality etc. to have
Beneficial effect.
In presently filed embodiment, at least one of mirror surface of each lens is aspherical mirror, that is, first thoroughly
Each of mirror, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens are saturating
At least one of the object side of mirror and image side surface are aspherical.The characteristics of non-spherical lens, is: all from lens centre to lens
Side, curvature are consecutive variations.Have the spherical lens of constant curvature different from from lens centre to lens perimeter, it is aspherical
Mirror has more preferably radius of curvature characteristic, has the advantages that improve and distorts aberration and improvement astigmatic image error.Using non-spherical lens
Afterwards, the aberration occurred when imaging can be eliminated, as much as possible so as to improve image quality.Optionally, the first lens,
Two lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and each lens in the 8th lens object
Side and image side surface can be aspherical.
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 optical imagery eyeglass group can be changed, to obtain each result and advantage described in this specification.Example
Such as, although being described by taking eight lens as an example in embodiments, which is not limited to include eight
A lens.If desired, the optical imagery eyeglass group may also include the lens of other quantity.
The specific implementation for being applicable to the optical imagery eyeglass group of above embodiment is further described with reference to the accompanying drawings
Example.
Embodiment 1
Referring to Fig. 1 to Fig. 2 D description according to the optical imagery eyeglass group of the embodiment of the present application 1.Fig. 1 shows basis
The structural schematic diagram of the optical imagery eyeglass group of the embodiment of the present application 1.
As shown in Figure 1, according to the optical imagery eyeglass group of the application illustrative embodiments along optical axis by object side to image side
It sequentially include: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th
Lens E6, the 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
First lens E1 has negative power, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Positive light coke, object side S3 are convex surface, and image side surface S4 is convex surface.The third lens E3 has positive light coke, and object side S5 is
Concave surface, image side surface S6 are convex surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is concave surface.The
Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is convex surface.6th lens E6 has negative power,
Its object side S11 is concave surface, and image side surface S12 is convex surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is concave surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 1 shows surface type, radius of curvature, thickness, the material of each lens of the optical imagery eyeglass group of embodiment 1
And circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 1
As shown in Table 1, the object side of any one lens of the first lens E1 into the 8th lens E8 and image side surface are
It is aspherical.In the present embodiment, the face type x of each non-spherical lens is available but is not limited to following aspherical formula and is defined:
Wherein, x be it is aspherical along optical axis direction when being highly the position of h, away from aspheric vertex of surface apart from rise；C is
Aspherical paraxial curvature, c=1/R (that is, inverse that paraxial curvature c is upper 1 mean curvature radius R of table)；K be circular cone coefficient (
It has been provided in table 1)；Ai is the correction factor of aspherical i-th-th rank.The following table 2 give can be used for it is each aspherical in embodiment 1
The high-order coefficient A of mirror surface S1-S164、A6、A8、A10、A12、A14、A16、A18And A20。
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | -5.4500E-02 | -4.6660E-02 | 1.2747E-01 | -4.3541E-01 | 8.4064E-01 | -9.9804E-01 | 7.2113E-01 | -2.9114E-01 | 5.0495E-02 |
| S2 | -6.7070E-02 | -5.4610E-02 | 1.4375E-01 | -4.6224E-01 | 8.3661E-01 | -9.1248E-01 | 5.8514E-01 | -2.0156E-01 | 2.8596E-02 |
| S3 | -1.0860E-02 | 9.4760E-03 | -4.9330E-02 | 2.2994E-01 | -5.8281E-01 | 8.6445E-01 | -7.4452E-01 | 3.4291E-01 | -6.4960E-02 |
| S4 | -1.5280E-02 | -4.6100E-03 | -1.6390E-02 | 1.7322E-01 | -4.7988E-01 | 7.2006E-01 | -6.1594E-01 | 2.8557E-01 | -5.5680E-02 |
| S5 | -1.9710E-02 | 1.5441E-02 | 1.0452E-02 | 3.7620E-02 | -1.7848E-01 | 3.5657E-01 | -3.7767E-01 | 2.1131E-01 | -4.8910E-02 |
| S6 | 1.8448E-02 | 9.8160E-03 | 9.3870E-03 | 1.6320E-02 | -5.6520E-02 | 1.1044E-01 | -1.3036E-01 | 8.5067E-02 | -2.2880E-02 |
| S7 | 5.8308E-02 | -2.8720E-02 | -1.9230E-02 | 1.0309E-01 | -2.0714E-01 | 2.5153E-01 | -1.8914E-01 | 8.0124E-02 | -1.4370E-02 |
| S8 | 3.3071E-02 | -1.9040E-02 | 2.1725E-02 | -4.7870E-02 | 8.4561E-02 | -9.1390E-02 | 5.7625E-02 | -1.9410E-02 | 2.7050E-03 |
| S9 | -5.9090E-02 | 4.3262E-02 | -1.7856E-01 | 5.1289E-01 | -8.6894E-01 | 9.0597E-01 | -5.6671E-01 | 1.9633E-01 | -2.9220E-02 |
| S10 | -5.7230E-02 | 3.1872E-02 | -2.1874E-01 | 5.7316E-01 | -8.6593E-01 | 7.8573E-01 | -4.2650E-01 | 1.2878E-01 | -1.6770E-02 |
| S11 | 5.6190E-02 | -1.3510E-02 | -6.9890E-02 | 2.0031E-01 | -2.4822E-01 | 1.5315E-01 | -4.2910E-02 | 1.6960E-03 | 1.0250E-03 |
| S12 | 3.6697E-02 | -8.9500E-03 | 2.2000E-02 | 1.8420E-03 | -2.3500E-02 | 2.3536E-02 | -1.1780E-02 | 3.1050E-03 | -3.4000E-04 |
| S13 | -3.1420E-02 | 9.9980E-03 | -5.1900E-03 | 1.9100E-03 | -5.8000E-04 | 1.3700E-04 | -2.2000E-05 | 1.9500E-06 | -7.7000E-08 |
| S14 | -1.6300E-03 | 2.2580E-03 | -1.4000E-03 | 3.2500E-04 | -4.2000E-05 | 3.0600E-06 | -1.2000E-07 | 1.8200E-09 | 1.8700E-12 |
| S15 | 2.1280E-03 | 3.3090E-03 | -1.0300E-03 | 3.3100E-04 | -7.4000E-05 | 9.7500E-06 | -7.3000E-07 | 2.8700E-08 | -4.6000E-10 |
| S16 | -9.9800E-03 | -4.1000E-04 | 3.8300E-04 | -8.7000E-05 | 1.0600E-05 | -7.0000E-07 | 1.9500E-08 | 9.6000E-11 | -1.1000E-11 |
Table 2
Table 3 provides the effective focal length f1 to f8 of each lens of optical imagery eyeglass group in embodiment 1, optical imagery eyeglass group
Total effective focal length f, optics total length TTL (that is, from the object side S1 to imaging surface S19 of the first lens E1 on optical axis away from
From), the half ImgH of effective pixel area diagonal line length and maximum angle of half field-of view HFOV on imaging surface S19.
| f1(mm) | -49.32 | f7(mm) | 10.36 |
| f2(mm) | 4.07 | f8(mm) | -3.62 |
| f3(mm) | 10.87 | f(mm) | 4.25 |
| f4(mm) | -6.77 | TTL(mm) | 5.76 |
| f5(mm) | 17.29 | ImgH(mm) | 4.28 |
| f6(mm) | -98.16 | HFOV(°) | 45.2 |
Table 3
Optical imagery eyeglass group in embodiment 1 meets:
F/EPD=1.98, wherein f is total effective focal length of optical imagery eyeglass group, and EPD is optical imagery eyeglass group
Entry pupil diameters；
F2/f7=0.39, wherein f2 is the effective focal length of the second lens E2, and f7 is the effective focal length of the 7th lens E7；
F/f4=-0.63, wherein f is total effective focal length of optical imagery eyeglass group, and f4 is effective coke of the 4th lens E4
Away from；
(R1+R2)/| f1 |=0.08, wherein R1 is the radius of curvature of the object side S1 of the first lens E1, and R2 is first saturating
The radius of curvature of the image side surface S2 of mirror E1, f1 are the effective focal length of the first lens E1；
| R6/f3 |=0.37, wherein R6 is the radius of curvature of the image side surface of the third lens E3, and f3 is the third lens E3's
Effective focal length；
TTL/ImgH=1.35, wherein TTL be the first lens E1 object side S1 to imaging surface S19 on optical axis away from
From ImgH is the half of effective pixel area diagonal line length on the imaging surface S19 of optical imagery eyeglass group；
R12/R11=1.08, wherein R12 is the radius of curvature of the image side surface of the 6th lens E6, and R11 is the 6th lens E6
Object side radius of curvature；
R15/R16=-0.48, wherein R15 is the radius of curvature of the object side S15 of the 8th lens E8, and R16 is the 8th saturating
The radius of curvature of the image side surface S16 of mirror E8；
DT61/DT71=0.56, wherein DT61 is the maximum effective radius of the object side S11 of the 6th lens E6, and DT71 is
The maximum effective radius of the object side S13 of 7th lens E7；
CT7/TTL × 10=2.25, wherein CT7 is the 7th lens E7 in the center thickness on optical axis, and TTL is first saturating
Distance of the object side S1 of mirror E1 to imaging surface S19 on optical axis；
F123456/f=1.18, wherein f123456 be the first lens E1, the second lens E2, the third lens E3, the 4th thoroughly
The combined focal length of mirror E4, the 5th lens E5 and the 6th lens E6, f are total effective focal length of optical imagery eyeglass group；
T67/T78=0.49, wherein T67 is spacing distance of the 6th lens E6 and the 7th lens E7 on optical axis, T78
For the spacing distance of the 7th lens E7 and the 8th lens E8 on optical axis.
Fig. 2A shows chromatic curve on the axis of the optical imagery eyeglass group of embodiment 1, indicates the light of different wave length
Deviate via the converging focal point after optical imagery eyeglass group.The astigmatism that Fig. 2 B shows the optical imagery eyeglass group of embodiment 1 is bent
Line indicates meridianal image surface bending and sagittal image surface bending.The distortion that Fig. 2 C shows the optical imagery eyeglass group of embodiment 1 is bent
Line indicates distortion sizes values corresponding to different image heights.Fig. 2 D shows the multiplying power color of the optical imagery eyeglass group of embodiment 1
Poor curve indicates light via the deviation of the different image heights after optical imagery eyeglass group on imaging surface.A is extremely according to fig. 2
Fig. 2 D is it is found that optical imagery eyeglass group given by embodiment 1 can be realized good image quality.
Embodiment 2
Referring to Fig. 3 to Fig. 4 D description according to the optical imagery eyeglass group of the embodiment of the present application 2.The present embodiment and with
In lower embodiment, for brevity, by clipped description similar to Example 1.Fig. 3 is shown according to the embodiment of the present application
The structural schematic diagram of 2 optical imagery eyeglass group.
As shown in figure 3, according to the optical imagery eyeglass group of the application illustrative embodiments along optical axis by object side to image side
It sequentially include: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th
Lens E6, the 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Positive light coke, object side S3 are convex surface, and image side surface S4 is convex surface.The third lens E3 has positive light coke, and object side S5 is
Concave surface, image side surface S6 are convex surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is concave surface.The
Five lens E5 have positive light coke, and object side S9 is concave surface, and image side surface S10 is convex surface.6th lens E6 has positive light coke,
Its object side S11 is concave surface, and image side surface S12 is convex surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is concave surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 4 shows surface type, radius of curvature, thickness, the material of each lens of the optical imagery eyeglass group of embodiment 2
And circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 4
As shown in Table 4, in example 2, the object side of any one lens of the first lens E1 into the 8th lens E8
It is aspherical with image side surface.Table 5 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 2, wherein each non-
Spherical surface type can be limited by the formula (1) provided in above-described embodiment 1.
Table 5
Table 6 provides the effective focal length f1 to f8 of each lens of optical imagery eyeglass group in embodiment 2, optical imagery eyeglass group
Total effective focal length f, optics total length TTL, on imaging surface S19 effective pixel area diagonal line length half ImgH and maximum
Angle of half field-of view HFOV.
| f1(mm) | 100.00 | f7(mm) | 12.83 |
| f2(mm) | 4.51 | f8(mm) | -3.69 |
| f3(mm) | 11.12 | f(mm) | 4.25 |
| f4(mm) | -6.59 | TTL(mm) | 5.71 |
| f5(mm) | 17.66 | ImgH(mm) | 4.28 |
| f6(mm) | 100.00 | HFOV(°) | 45.2 |
Table 6
Fig. 4 A shows chromatic curve on the axis of the optical imagery eyeglass group of embodiment 2, indicates the light of different wave length
Deviate via the converging focal point after optical imagery eyeglass group.The astigmatism that Fig. 4 B shows the optical imagery eyeglass group of embodiment 2 is bent
Line indicates meridianal image surface bending and sagittal image surface bending.The distortion that Fig. 4 C shows the optical imagery eyeglass group of embodiment 2 is bent
Line indicates distortion sizes values corresponding to different image heights.Fig. 4 D shows the multiplying power color of the optical imagery eyeglass group of embodiment 2
Poor curve indicates light via the deviation of the different image heights after optical imagery eyeglass group on imaging surface.Extremely according to Fig. 4 A
Fig. 4 D is it is found that optical imagery eyeglass group given by embodiment 2 can be realized good image quality.
Embodiment 3
The optical imagery eyeglass group according to the embodiment of the present application 3 is described referring to Fig. 5 to Fig. 6 D.Fig. 5 shows root
According to the structural schematic diagram of the optical imagery eyeglass group of the embodiment of the present application 3.
As shown in figure 5, according to the optical imagery eyeglass group of the application illustrative embodiments along optical axis by object side to image side
It sequentially include: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th
Lens E6, the 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
First lens E1 has negative power, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Positive light coke, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Concave surface, image side surface S6 are convex surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is concave surface.The
Five lens E5 have positive light coke, and object side S9 is concave surface, and image side surface S10 is convex surface.6th lens E6 has positive light coke,
Its object side S11 is concave surface, and image side surface S12 is convex surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is concave surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 7 shows surface type, radius of curvature, thickness, the material of each lens of the optical imagery eyeglass group of embodiment 3
And circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 7
As shown in Table 7, in embodiment 3, the object side of any one lens of the first lens E1 into the 8th lens E8
It is aspherical with image side surface.Table 8 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 3, wherein each non-
Spherical surface type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | -4.5230E-02 | -5.6260E-02 | 1.8918E-01 | -5.9134E-01 | 1.0794E+00 | -1.2305E+00 | 8.5267E-01 | -3.2850E-01 | 5.4057E-02 |
| S2 | -6.2350E-02 | -5.6020E-02 | 1.5705E-01 | -4.5712E-01 | 7.5122E-01 | -7.6438E-01 | 4.5738E-01 | -1.4632E-01 | 1.9304E-02 |
| S3 | -1.3690E-02 | 2.1757E-02 | -1.1893E-01 | 4.5093E-01 | -9.4046E-01 | 1.1768E+00 | -8.7630E-01 | 3.5631E-01 | -6.0430E-02 |
| S4 | -1.8160E-02 | -3.9300E-03 | -1.5800E-02 | 1.7441E-01 | -4.7863E-01 | 7.2071E-01 | -6.1594E-01 | 2.8557E-01 | -5.5680E-02 |
| S5 | -2.1700E-02 | 1.7990E-02 | 1.1093E-02 | 3.7833E-02 | -1.7777E-01 | 3.5779E-01 | -3.7767E-01 | 2.1131E-01 | -4.8910E-02 |
| S6 | 1.0509E-02 | 6.9360E-03 | 1.1525E-02 | 1.8411E-02 | -5.5310E-02 | 1.1108E-01 | -1.3036E-01 | 8.5067E-02 | -2.2880E-02 |
| S7 | 4.5155E-02 | -2.3840E-02 | -4.0580E-02 | 1.4165E-01 | -2.4283E-01 | 2.7044E-01 | -1.9301E-01 | 7.8922E-02 | -1.3790E-02 |
| S8 | 3.2049E-02 | -1.8530E-02 | 2.2331E-02 | -4.7460E-02 | 8.4758E-02 | -9.1300E-02 | 5.7480E-02 | -1.9410E-02 | 2.7050E-03 |
| S9 | -6.1340E-02 | 4.3988E-02 | -1.7798E-01 | 5.1316E-01 | -8.6886E-01 | 9.0599E-01 | -5.6671E-01 | 1.9633E-01 | -2.9220E-02 |
| S10 | -5.7890E-02 | 3.0388E-02 | -2.1952E-01 | 5.7293E-01 | -8.6601E-01 | 7.8570E-01 | -4.2646E-01 | 1.2878E-01 | -1.6770E-02 |
| S11 | 5.1723E-02 | -1.5580E-02 | -7.0620E-02 | 2.0000E-01 | -2.4837E-01 | 1.5305E-01 | -4.2980E-02 | 1.6960E-03 | 1.0250E-03 |
| S12 | 4.1843E-02 | -1.2120E-02 | 1.9499E-02 | 6.0270E-03 | -2.4670E-02 | 2.2959E-02 | -1.1850E-02 | 3.3760E-03 | -4.0000E-04 |
| S13 | -1.9600E-02 | 1.4720E-03 | -2.4000E-04 | -3.4000E-04 | 1.9800E-04 | -5.0000E-05 | 7.0100E-06 | -5.2000E-07 | 1.5700E-08 |
| S14 | 3.5170E-03 | -6.5000E-04 | -9.2000E-04 | 3.2900E-04 | -5.5000E-05 | 5.1700E-06 | -2.8000E-07 | 7.5500E-09 | -8.1000E-11 |
| S15 | 1.7050E-03 | 2.9230E-03 | -9.0000E-04 | 2.9600E-04 | -6.5000E-05 | 8.4500E-06 | -6.2000E-07 | 2.3900E-08 | -3.8000E-10 |
| S16 | -1.3070E-02 | 2.7600E-05 | 4.1700E-04 | -1.2000E-04 | 2.0400E-05 | -2.0000E-06 | 1.1300E-07 | -3.4000E-09 | 4.1400E-11 |
Table 8
Table 9 provides the effective focal length f1 to f8 of each lens of optical imagery eyeglass group in embodiment 3, optical imagery eyeglass group
Total effective focal length f, optics total length TTL, on imaging surface S19 effective pixel area diagonal line length half ImgH and maximum
Angle of half field-of view HFOV.
Table 9
Fig. 6 A shows chromatic curve on the axis of the optical imagery eyeglass group of embodiment 3, indicates the light of different wave length
Deviate via the converging focal point after optical imagery eyeglass group.The astigmatism that Fig. 6 B shows the optical imagery eyeglass group of embodiment 3 is bent
Line indicates meridianal image surface bending and sagittal image surface bending.The distortion that Fig. 6 C shows the optical imagery eyeglass group of embodiment 3 is bent
Line indicates distortion sizes values corresponding to different image heights.Fig. 6 D shows the multiplying power color of the optical imagery eyeglass group of embodiment 3
Poor curve indicates light via the deviation of the different image heights after optical imagery eyeglass group on imaging surface.Extremely according to Fig. 6 A
Fig. 6 D is it is found that optical imagery eyeglass group given by embodiment 3 can be realized good image quality.
Embodiment 4
The optical imagery eyeglass group according to the embodiment of the present application 4 is described referring to Fig. 7 to Fig. 8 D.Fig. 7 shows root
According to the structural schematic diagram of the optical imagery eyeglass group of the embodiment of the present application 4.
As shown in fig. 7, according to the optical imagery eyeglass group of the application illustrative embodiments along optical axis by object side to image side
It sequentially include: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th
Lens E6, the 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Positive light coke, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are convex surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is concave surface.The
Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is convex surface.6th lens E6 has negative power,
Its object side S11 is concave surface, and image side surface S12 is convex surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is concave surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 10 shows surface type, radius of curvature, thickness, the material of each lens of the optical imagery eyeglass group of embodiment 4
Material and circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 10
As shown in Table 10, in example 4, the object side of any one lens of the first lens E1 into the 8th lens E8
It is aspherical with image side surface.Table 11 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 4, wherein each
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 11
Table 12 provides the effective focal length f1 to f8 of each lens of optical imagery eyeglass group, optical imagery eyeglass in embodiment 4
Total effective focal length f of group, optics total length TTL, the half ImgH of effective pixel area diagonal line length and most on imaging surface S19
Big angle of half field-of view HFOV.
| f1(mm) | 100.00 | f7(mm) | 10.54 |
| f2(mm) | 5.63 | f8(mm) | -3.60 |
| f3(mm) | 8.41 | f(mm) | 4.02 |
| f4(mm) | -7.11 | TTL(mm) | 5.48 |
| f5(mm) | 10.64 | ImgH(mm) | 4.28 |
| f6(mm) | -40.54 | HFOV(°) | 47.1 |
Table 12
Fig. 8 A shows chromatic curve on the axis of the optical imagery eyeglass group of embodiment 4, indicates the light of different wave length
Deviate via the converging focal point after optical imagery eyeglass group.The astigmatism that Fig. 8 B shows the optical imagery eyeglass group of embodiment 4 is bent
Line indicates meridianal image surface bending and sagittal image surface bending.The distortion that Fig. 8 C shows the optical imagery eyeglass group of embodiment 4 is bent
Line indicates distortion sizes values corresponding to different image heights.Fig. 8 D shows the multiplying power color of the optical imagery eyeglass group of embodiment 4
Poor curve indicates light via the deviation of the different image heights after optical imagery eyeglass group on imaging surface.Extremely according to Fig. 8 A
Fig. 8 D is it is found that optical imagery eyeglass group given by embodiment 4 can be realized good image quality.
Embodiment 5
The optical imagery eyeglass group according to the embodiment of the present application 5 is described referring to Fig. 9 to Figure 10 D.Fig. 9 shows root
According to the structural schematic diagram of the optical imagery eyeglass group of the embodiment of the present application 5.
As shown in figure 9, according to the optical imagery eyeglass group of the application illustrative embodiments along optical axis by object side to image side
It sequentially include: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th
Lens E6, the 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Positive light coke, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has negative power, and object side S5 is
Concave surface, image side surface S6 are convex surface.4th lens E4 has negative power, and object side S7 is convex surface, and image side surface S8 is concave surface.The
Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is convex surface.6th lens E6 has negative power,
Its object side S11 is concave surface, and image side surface S12 is convex surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is concave surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 13 shows surface type, radius of curvature, thickness, the material of each lens of the optical imagery eyeglass group of embodiment 5
Material and circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 13
As shown in Table 13, in embodiment 5, the object side of any one lens of the first lens E1 into the 8th lens E8
It is aspherical with image side surface.Table 14 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 5, wherein each
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | -3.2360E-02 | 4.5980E-03 | -1.3313E-01 | 3.9171E-01 | -7.4369E-01 | 8.3026E-01 | -5.5636E-01 | 2.1022E-01 | -3.4440E-02 |
| S2 | -3.8990E-02 | -1.9060E-02 | -1.3510E-02 | 7.8517E-02 | -2.5131E-01 | 3.5420E-01 | -3.0060E-01 | 1.4416E-01 | -2.8990E-02 |
| S3 | -2.0490E-02 | 4.4491E-02 | -1.9666E-01 | 6.1871E-01 | -1.1030E+00 | 1.2499E+00 | -8.8951E-01 | 3.5917E-01 | -6.1820E-02 |
| S4 | -3.5730E-02 | -2.6100E-03 | -1.0750E-02 | 1.7799E-01 | -4.7758E-01 | 7.2025E-01 | -6.1594E-01 | 2.8557E-01 | -5.5680E-02 |
| S5 | -1.6220E-02 | 2.0747E-02 | 9.7670E-03 | 3.6063E-02 | -1.7855E-01 | 3.5789E-01 | -3.7767E-01 | 2.1131E-01 | -4.8910E-02 |
| S6 | -1.9790E-02 | -4.1100E-03 | 1.0647E-02 | 1.9562E-02 | -5.4420E-02 | 1.1151E-01 | -1.3036E-01 | 8.5067E-02 | -2.2880E-02 |
| S7 | 7.2120E-03 | -2.9930E-02 | -8.2200E-02 | 3.3458E-01 | -6.4826E-01 | 7.7478E-01 | -5.5430E-01 | 2.1596E-01 | -3.4980E-02 |
| S8 | 3.5073E-02 | -1.6960E-02 | 2.2641E-02 | -4.7430E-02 | 8.4685E-02 | -9.1410E-02 | 5.7389E-02 | -1.9350E-02 | 2.7050E-03 |
| S9 | -3.2830E-02 | 4.4566E-02 | -1.7987E-01 | 5.1185E-01 | -8.6956E-01 | 9.0575E-01 | -5.6663E-01 | 1.9653E-01 | -2.9220E-02 |
| S10 | -5.1730E-02 | 2.4062E-02 | -2.2224E-01 | 5.7266E-01 | -8.6595E-01 | 7.8572E-01 | -4.2645E-01 | 1.2880E-01 | -1.6770E-02 |
| S11 | 4.7943E-02 | -1.4970E-02 | -6.9650E-02 | 2.0036E-01 | -2.4823E-01 | 1.5302E-01 | -4.3150E-02 | 1.5150E-03 | 1.0250E-03 |
| S12 | 2.9613E-02 | -2.2100E-03 | 2.3938E-02 | -2.3060E-02 | 2.4138E-02 | -1.6130E-02 | 3.8300E-03 | 4.2800E-04 | -2.1000E-04 |
| S13 | -2.3630E-02 | 7.8390E-03 | -6.3800E-03 | 2.7180E-03 | -8.8000E-04 | 1.9700E-04 | -3.1000E-05 | 3.1900E-06 | -1.5000E-07 |
| S14 | 1.9620E-03 | 2.1330E-03 | -1.8200E-03 | 5.1400E-04 | -8.1000E-05 | 7.7600E-06 | -4.5000E-07 | 1.3500E-08 | -1.5000E-10 |
| S15 | -7.1400E-03 | 4.5010E-03 | -6.8000E-04 | 2.4000E-04 | -6.4000E-05 | 9.0100E-06 | -6.9000E-07 | 2.7300E-08 | -4.4000E-10 |
| S16 | -1.9710E-02 | 3.0570E-03 | -5.4000E-04 | 9.1300E-05 | -1.4000E-05 | 1.5200E-06 | -1.1000E-07 | 3.9800E-09 | -6.1000E-11 |
Table 14
Table 15 provides the effective focal length f1 to f8 of each lens of optical imagery eyeglass group, optical imagery eyeglass in embodiment 5
Total effective focal length f of group, optics total length TTL, the half ImgH of effective pixel area diagonal line length and most on imaging surface S19
Big angle of half field-of view HFOV.
Table 15
Figure 10 A shows chromatic curve on the axis of the optical imagery eyeglass group of embodiment 5, indicates the light of different wave length
Deviate via the converging focal point after optical imagery eyeglass group.The astigmatism that Figure 10 B shows the optical imagery eyeglass group of embodiment 5 is bent
Line indicates meridianal image surface bending and sagittal image surface bending.Figure 10 C shows the distortion of the optical imagery eyeglass group of embodiment 5
Curve indicates distortion sizes values corresponding to different image heights.Figure 10 D shows times of the optical imagery eyeglass group of embodiment 5
Rate chromatic curve indicates light via the deviation of the different image heights after optical imagery eyeglass group on imaging surface.According to figure
10A to Figure 10 D is it is found that optical imagery eyeglass group given by embodiment 5 can be realized good image quality.
Embodiment 6
The optical imagery eyeglass group according to the embodiment of the present application 6 is described referring to Figure 11 to Figure 12 D.Figure 11 is shown
According to the structural schematic diagram of the optical imagery eyeglass group of the embodiment of the present application 6.
As shown in figure 11, according to the optical imagery eyeglass group of the application illustrative embodiments along optical axis by object side to image side
It sequentially include: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th
Lens E6, the 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Positive light coke, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has negative power, and object side S5 is
Concave surface, image side surface S6 are convex surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is concave surface.The
Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is convex surface.6th lens E6 has positive light coke,
Its object side S11 is concave surface, and image side surface S12 is convex surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is concave surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 16 shows surface type, radius of curvature, thickness, the material of each lens of the optical imagery eyeglass group of embodiment 6
Material and circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 16
As shown in Table 16, in embodiment 6, the object side of any one lens of the first lens E1 into the 8th lens E8
It is aspherical with image side surface.Table 17 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 6, wherein each
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 17
Table 18 provides the effective focal length f1 to f8 of each lens of optical imagery eyeglass group, optical imagery eyeglass in embodiment 6
Total effective focal length f of group, optics total length TTL, the half ImgH of effective pixel area diagonal line length and most on imaging surface S19
Big angle of half field-of view HFOV.
| f1(mm) | 99.97 | f7(mm) | 17.95 |
| f2(mm) | 4.57 | f8(mm) | -3.46 |
| f3(mm) | -100.00 | f(mm) | 4.03 |
| f4(mm) | -16.67 | TTL(mm) | 5.44 |
| f5(mm) | 9.99 | ImgH(mm) | 4.29 |
| f6(mm) | 48.22 | HFOV(°) | 46.8 |
Table 18
Figure 12 A shows chromatic curve on the axis of the optical imagery eyeglass group of embodiment 6, indicates the light of different wave length
Deviate via the converging focal point after optical imagery eyeglass group.The astigmatism that Figure 12 B shows the optical imagery eyeglass group of embodiment 6 is bent
Line indicates meridianal image surface bending and sagittal image surface bending.Figure 12 C shows the distortion of the optical imagery eyeglass group of embodiment 6
Curve indicates distortion sizes values corresponding to different image heights.Figure 12 D shows times of the optical imagery eyeglass group of embodiment 6
Rate chromatic curve indicates light via the deviation of the different image heights after optical imagery eyeglass group on imaging surface.According to figure
12A to Figure 12 D is it is found that optical imagery eyeglass group given by embodiment 6 can be realized good image quality.
Embodiment 7
The optical imagery eyeglass group according to the embodiment of the present application 7 is described referring to Figure 13 to Figure 14 D.Figure 13 is shown
According to the structural schematic diagram of the optical imagery eyeglass group of the embodiment of the present application 7.
As shown in figure 13, according to the optical imagery eyeglass group of the application illustrative embodiments along optical axis by object side to image side
It sequentially include: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th
Lens E6, the 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
First lens E1 has negative power, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Positive light coke, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has negative power, and object side S5 is
Concave surface, image side surface S6 are convex surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is concave surface.The
Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is convex surface.6th lens E6 has positive light coke,
Its object side S11 is concave surface, and image side surface S12 is convex surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is convex surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 19 shows surface type, radius of curvature, thickness, the material of each lens of the optical imagery eyeglass group of embodiment 7
Material and circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 19
As shown in Table 19, in embodiment 7, the object side of any one lens of the first lens E1 into the 8th lens E8
It is aspherical with image side surface.Table 20 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 7, wherein each
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | -3.9430E-02 | -2.3960E-02 | 4.8979E-02 | -9.5200E-02 | 6.8382E-02 | 1.8669E-02 | -8.8800E-02 | 6.6713E-02 | -1.6280E-02 |
| S2 | -6.8560E-02 | -1.3210E-02 | 1.4667E-02 | -3.6910E-02 | 3.5284E-02 | -7.7000E-04 | -7.5840E-02 | 7.1897E-02 | -1.9520E-02 |
| S3 | -3.0500E-02 | 3.6690E-02 | -1.8196E-01 | 5.7997E-01 | -1.0556E+00 | 1.2490E+00 | -9.2190E-01 | 3.7728E-01 | -6.4430E-02 |
| S4 | -3.0110E-02 | -5.6400E-03 | -1.0620E-02 | 1.7996E-01 | -4.7612E-01 | 7.2089E-01 | -6.1594E-01 | 2.8557E-01 | -5.5680E-02 |
| S5 | -1.9140E-02 | 1.8293E-02 | 9.8680E-03 | 3.6098E-02 | -1.7830E-01 | 3.5841E-01 | -3.7767E-01 | 2.1131E-01 | -4.8910E-02 |
| S6 | -3.4300E-02 | -1.0430E-02 | 4.9550E-03 | 1.7453E-02 | -5.4460E-02 | 1.1214E-01 | -1.3036E-01 | 8.5067E-02 | -2.2880E-02 |
| S7 | -8.8800E-03 | -1.8910E-02 | -1.7046E-01 | 6.1390E-01 | -1.1810E+00 | 1.4037E+00 | -9.9180E-01 | 3.8115E-01 | -6.1290E-02 |
| S8 | 2.8479E-02 | -1.8510E-02 | 2.4098E-02 | -4.6910E-02 | 8.4664E-02 | -9.1500E-02 | 5.7355E-02 | -1.9360E-02 | 2.7050E-03 |
| S9 | -4.4790E-02 | 5.0012E-02 | -1.8164E-01 | 5.1017E-01 | -8.7004E-01 | 9.0579E-01 | -5.6656E-01 | 1.9657E-01 | -2.9220E-02 |
| S10 | -4.7090E-02 | 2.4236E-02 | -2.2227E-01 | 5.7308E-01 | -8.6568E-01 | 7.8584E-01 | -4.2638E-01 | 1.2885E-01 | -1.6770E-02 |
| S11 | 4.3402E-02 | -1.7180E-02 | -6.9920E-02 | 2.0060E-01 | -2.4786E-01 | 1.5336E-01 | -4.2900E-02 | 1.6680E-03 | 1.0250E-03 |
| S12 | 4.4958E-02 | -1.9090E-02 | 4.7712E-02 | -4.9690E-02 | 4.3924E-02 | -2.7000E-02 | 9.0740E-03 | -1.3500E-03 | 5.1700E-05 |
| S13 | -1.2290E-02 | 6.9960E-03 | -6.8000E-03 | 3.4250E-03 | -1.1600E-03 | 2.3600E-04 | -2.8000E-05 | 1.7100E-06 | -4.3000E-08 |
| S14 | 2.6320E-03 | 3.8840E-03 | -2.6900E-03 | 8.9500E-04 | -2.0000E-04 | 3.0700E-05 | -2.8000E-06 | 1.4300E-07 | -3.0000E-09 |
| S15 | -3.4200E-03 | -3.8000E-04 | 7.5700E-04 | 3.6800E-06 | -3.8000E-05 | 7.2600E-06 | -6.6000E-07 | 3.1000E-08 | -5.9000E-10 |
| S16 | -1.7210E-02 | 7.7100E-04 | 5.6500E-05 | 2.6500E-05 | -1.5000E-05 | 2.5100E-06 | -2.0000E-07 | 8.1900E-09 | -1.3000E-10 |
Table 20
Table 21 provides the effective focal length f1 to f8 of each lens of optical imagery eyeglass group, optical imagery eyeglass in embodiment 7
Total effective focal length f of group, optics total length TTL, the half ImgH of effective pixel area diagonal line length and most on imaging surface S19
Big angle of half field-of view.
| f1(mm) | -100.00 | f7(mm) | 10.01 |
| f2(mm) | 4.15 | f8(mm) | -3.16 |
| f3(mm) | -48.77 | f(mm) | 4.08 |
| f4(mm) | -18.31 | TTL(mm) | 5.63 |
| f5(mm) | 10.29 | ImgH(mm) | 4.29 |
| f6(mm) | 100.00 | HFOV(°) | 46.4 |
Table 21
Figure 14 A shows chromatic curve on the axis of the optical imagery eyeglass group of embodiment 7, indicates the light of different wave length
Deviate via the converging focal point after optical imagery eyeglass group.The astigmatism that Figure 14 B shows the optical imagery eyeglass group of embodiment 7 is bent
Line indicates meridianal image surface bending and sagittal image surface bending.Figure 14 C shows the distortion of the optical imagery eyeglass group of embodiment 7
Curve indicates distortion sizes values corresponding to different image heights.Figure 14 D shows times of the optical imagery eyeglass group of embodiment 7
Rate chromatic curve indicates light via the deviation of the different image heights after optical imagery eyeglass group on imaging surface.According to figure
14A to Figure 14 D is it is found that optical imagery eyeglass group given by embodiment 7 can be realized good image quality.
Embodiment 8
The optical imagery eyeglass group according to the embodiment of the present application 8 is described referring to Figure 15 to Figure 16 D.Figure 15 is shown
According to the structural schematic diagram of the optical imagery eyeglass group of the embodiment of the present application 8.
As shown in figure 15, according to the optical imagery eyeglass group of the application illustrative embodiments along optical axis by object side to image side
It sequentially include: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th
Lens E6, the 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Positive light coke, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are convex surface.4th lens E4 has negative power, and object side S7 is convex surface, and image side surface S8 is concave surface.The
Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke,
Its object side S11 is concave surface, and image side surface S12 is convex surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is concave surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 22 shows surface type, radius of curvature, thickness, the material of each lens of the optical imagery eyeglass group of embodiment 8
Material and circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 22
As shown in Table 22, in embodiment 8, the object side of any one lens of the first lens E1 into the 8th lens E8
It is aspherical with image side surface.Table 23 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 8, wherein each
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 23
Table 24 provides the effective focal length f1 to f8 of each lens of optical imagery eyeglass group, optical imagery eyeglass in embodiment 8
Total effective focal length f of group, optics total length TTL, the half ImgH of effective pixel area diagonal line length and most on imaging surface S19
Big angle of half field-of view HFOV.
| f1(mm) | 100.00 | f7(mm) | 10.43 |
| f2(mm) | 4.88 | f8(mm) | -3.56 |
| f3(mm) | 99.28 | f(mm) | 4.07 |
| f4(mm) | -15.28 | TTL(mm) | 5.50 |
| f5(mm) | -100.00 | ImgH(mm) | 4.29 |
| f6(mm) | 10.53 | HFOV(°) | 45.7 |
Table 24
Figure 16 A shows chromatic curve on the axis of the optical imagery eyeglass group of embodiment 8, indicates the light of different wave length
Deviate via the converging focal point after optical imagery eyeglass group.The astigmatism that Figure 16 B shows the optical imagery eyeglass group of embodiment 8 is bent
Line indicates meridianal image surface bending and sagittal image surface bending.Figure 16 C shows the distortion of the optical imagery eyeglass group of embodiment 8
Curve indicates distortion sizes values corresponding to different image heights.Figure 16 D shows times of the optical imagery eyeglass group of embodiment 8
Rate chromatic curve indicates light via the deviation of the different image heights after optical imagery eyeglass group on imaging surface.According to figure
16A to Figure 16 D is it is found that optical imagery eyeglass group given by embodiment 8 can be realized good image quality.
Embodiment 9
The optical imagery eyeglass group according to the embodiment of the present application 9 is described referring to Figure 17 to Figure 18 D.Figure 17 shows
According to the structural schematic diagram of the optical imagery eyeglass group of the embodiment of the present application 9.
As shown in figure 17, according to the optical imagery eyeglass group of the application illustrative embodiments along optical axis by object side to image side
It sequentially include: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th
Lens E6, the 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
First lens E1 has negative power, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Positive light coke, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has negative power, and object side S5 is
Concave surface, image side surface S6 are convex surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is concave surface.The
Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke,
Its object side S11 is concave surface, and image side surface S12 is convex surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is concave surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 25 shows surface type, radius of curvature, thickness, the material of each lens of the optical imagery eyeglass group of embodiment 9
Material and circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 25
As shown in Table 25, in embodiment 9, the object side of any one lens of the first lens E1 into the 8th lens E8
It is aspherical with image side surface.Table 26 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 9, wherein each
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | -4.0090E-02 | -3.8660E-02 | 1.0210E-01 | -1.2814E-01 | -4.0270E-02 | 2.8052E-01 | -3.2690E-01 | 1.6644E-01 | -3.2230E-02 |
| S2 | -7.5190E-02 | -3.9020E-02 | 1.4898E-01 | -3.0837E-01 | 2.8921E-01 | -3.4430E-02 | -2.0416E-01 | 1.6702E-01 | -4.0730E-02 |
| S3 | -3.1460E-02 | 2.3373E-02 | -1.5898E-01 | 6.8360E-01 | -1.5181E+00 | 1.9984E+00 | -1.5386E+00 | 6.3475E-01 | -1.0776E-01 |
| S4 | -1.8000E-02 | -7.7300E-03 | -1.6810E-02 | 1.7984E-01 | -4.7498E-01 | 7.2055E-01 | -6.1594E-01 | 2.8557E-01 | -5.5680E-02 |
| S5 | -2.0060E-02 | 1.0148E-02 | 1.0029E-02 | 3.6385E-02 | -1.7777E-01 | 3.5878E-01 | -3.7767E-01 | 2.1131E-01 | -4.8910E-02 |
| S6 | -5.4490E-02 | -5.0000E-04 | 3.2750E-03 | 1.5808E-02 | -5.4130E-02 | 1.1163E-01 | -1.3036E-01 | 8.5067E-02 | -2.2880E-02 |
| S7 | -2.9220E-02 | -4.8000E-04 | -2.4069E-01 | 7.8992E-01 | -1.4921E+00 | 1.7359E+00 | -1.1998E+00 | 4.5115E-01 | -7.0990E-02 |
| S8 | 3.4082E-02 | -2.4710E-02 | 2.4637E-02 | -4.5860E-02 | 8.4652E-02 | -9.1870E-02 | 5.7224E-02 | -1.9370E-02 | 2.7050E-03 |
| S9 | -5.6980E-02 | 5.8117E-02 | -1.7782E-01 | 5.1071E-01 | -8.7031E-01 | 9.0547E-01 | -5.6672E-01 | 1.9651E-01 | -2.9220E-02 |
| S10 | -4.3530E-02 | 3.0867E-02 | -2.2023E-01 | 5.7308E-01 | -8.6611E-01 | 7.8551E-01 | -4.2652E-01 | 1.2879E-01 | -1.6770E-02 |
| S11 | 2.2124E-02 | -1.0670E-02 | -6.9200E-02 | 1.9968E-01 | -2.4833E-01 | 1.5328E-01 | -4.3200E-02 | 1.4850E-03 | 1.0250E-03 |
| S12 | -1.0710E-02 | 3.9898E-02 | -9.3170E-02 | 1.7487E-01 | -1.8114E-01 | 1.1916E-01 | -5.1860E-02 | 1.3333E-02 | -1.4800E-03 |
| S13 | -1.5480E-02 | 3.6170E-03 | -2.1400E-03 | 8.4300E-04 | -2.1000E-04 | 2.9900E-05 | -2.4000E-06 | 9.7800E-08 | -1.5000E-09 |
| S14 | 4.7080E-03 | -3.7400E-03 | 6.8200E-04 | 7.7400E-05 | -4.4000E-05 | 6.3600E-06 | -4.2000E-07 | 1.1800E-08 | -6.6000E-11 |
| S15 | -3.3050E-02 | 9.9030E-03 | -1.0600E-03 | 2.8900E-04 | -8.2000E-05 | 1.2200E-05 | -9.5000E-07 | 3.8200E-08 | -6.2000E-10 |
| S16 | -1.0790E-02 | -5.9200E-03 | 3.3640E-03 | -8.1000E-04 | 1.1600E-04 | -1.0000E-05 | 5.5100E-07 | -1.6000E-08 | 2.0800E-10 |
Table 26
Table 27 provides the effective focal length f1 to f8 of each lens of optical imagery eyeglass group, optical imagery eyeglass in embodiment 9
Total effective focal length f of group, optics total length TTL, the half ImgH of effective pixel area diagonal line length and most on imaging surface S19
Big angle of half field-of view HFOV.
| f1(mm) | -100.00 | f7(mm) | 7.55 |
| f2(mm) | 4.49 | f8(mm) | -3.41 |
| f3(mm) | -300.00 | f(mm) | 4.00 |
| f4(mm) | -21.10 | TTL(mm) | 5.48 |
| f5(mm) | -100.00 | ImgH(mm) | 4.29 |
| f6(mm) | 12.81 | HFOV(°) | 46.3 |
Table 27
Figure 18 A shows chromatic curve on the axis of the optical imagery eyeglass group of embodiment 9, indicates the light of different wave length
Deviate via the converging focal point after optical imagery eyeglass group.The astigmatism that Figure 18 B shows the optical imagery eyeglass group of embodiment 9 is bent
Line indicates meridianal image surface bending and sagittal image surface bending.Figure 18 C shows the distortion of the optical imagery eyeglass group of embodiment 9
Curve indicates distortion sizes values corresponding to different image heights.Figure 18 D shows times of the optical imagery eyeglass group of embodiment 9
Rate chromatic curve indicates light via the deviation of the different image heights after optical imagery eyeglass group on imaging surface.According to figure
18A to Figure 18 D is it is found that optical imagery eyeglass group given by embodiment 9 can be realized good image quality.
Embodiment 10
The optical imagery eyeglass group according to the embodiment of the present application 10 is described referring to Figure 19 to Figure 20 D.Figure 19 is shown
According to the structural schematic diagram of the optical imagery eyeglass group of the embodiment of the present application 10.
As shown in figure 19, according to the optical imagery eyeglass group of the application illustrative embodiments along optical axis by object side to image side
It sequentially include: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th
Lens E6, the 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
First lens E1 has negative power, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has
Positive light coke, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are convex surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is concave surface.The
Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke,
Its object side S11 is concave surface, and image side surface S12 is convex surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is concave surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 28 shows surface type, radius of curvature, thickness, the material of each lens of the optical imagery eyeglass group of embodiment 10
Material and circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 28
As shown in Table 28, in embodiment 10, the object side of any one lens of the first lens E1 into the 8th lens E8
Face and image side surface are aspherical.Table 29 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 10, wherein
Each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 29
Table 30 provides the effective focal length f1 to f8 of each lens of optical imagery eyeglass group, optical imagery eyeglass in embodiment 10
Total effective focal length f of group, optics total length TTL, the half ImgH of effective pixel area diagonal line length and most on imaging surface S19
Big angle of half field-of view HFOV.
| f1(mm) | -100.02 | f7(mm) | 16.93 |
| f2(mm) | 5.21 | f8(mm) | -3.48 |
| f3(mm) | 8.27 | f(mm) | 4.08 |
| f4(mm) | -8.33 | TTL(mm) | 5.48 |
| f5(mm) | -100.00 | ImgH(mm) | 4.20 |
| f6(mm) | 10.76 | HFOV(°) | 46.2 |
Table 30
Figure 20 A shows chromatic curve on the axis of the optical imagery eyeglass group of embodiment 10, indicates the light of different wave length
Line deviates via the converging focal point after optical imagery eyeglass group.Figure 20 B show the optical imagery eyeglass group of embodiment 10 as
Non-dramatic song line indicates meridianal image surface bending and sagittal image surface bending.Figure 20 C shows the optical imagery eyeglass group of embodiment 10
Distortion curve indicates distortion sizes values corresponding to different image heights.Figure 20 D shows the optical imagery eyeglass group of embodiment 10
Ratio chromatism, curve, indicate light via the different image heights after optical imagery eyeglass group on imaging surface deviation.Root
According to Figure 20 A to Figure 20 D it is found that optical imagery eyeglass group given by embodiment 10 can be realized good image quality.
To sum up, embodiment 1 to embodiment 10 meets relationship shown in table 31 respectively.
Table 31
The application also provides a kind of imaging device, and electronics photosensitive element can be photosensitive coupling element (CCD) or complementation
Property matal-oxide semiconductor element (CMOS).Imaging device can be the independent imaging equipment of such as digital camera, be also possible to
The image-forming module being integrated on the mobile electronic devices such as mobile phone.The imaging device is equipped with optical imaging lens described above
Piece group.
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 (18)
1. optical imagery eyeglass group, along optical axis by object side to image side sequentially include: the first lens, the second lens, the third lens,
4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens, which is characterized in that
First lens have focal power；
Second lens have positive light coke；
The third lens have focal power, and image side surface is convex surface；
4th lens have negative power；
5th lens have focal power；
6th lens have focal power, and object side is concave surface, and image side surface is convex surface；
7th lens have positive light coke；And
8th lens have focal power.
2. optical imagery eyeglass group according to claim 1, which is characterized in that the object side of second lens is convex
Face.
3. optical imagery eyeglass group according to claim 2, which is characterized in that the object side of the 7th lens is convex
Face.
4. optical imagery eyeglass group according to claim 3, which is characterized in that the effective focal length f2 of second lens with
The effective focal length f7 of 7th lens meets 0 < f2/f7 < 0.8.
5. optical imagery eyeglass group according to claim 1, which is characterized in that the image side surface of the 4th lens is recessed
Face.
6. optical imagery eyeglass group according to claim 5, which is characterized in that the optical imagery eyeglass group it is total effectively
The effective focal length f4 of focal length f and the 4th lens meets -0.8 < f/f4 < 0.
7. optical imagery eyeglass group according to claim 1, which is characterized in that first lens, second lens,
The third lens, the 4th lens, the 5th lens and the 6th lens combined focal length f123456 and the light
It studies as total effective focal length f of lens set meets 1.0 < f123456/f < 1.5.
8. optical imagery eyeglass group according to claim 1, which is characterized in that the 7th lens are on the optical axis
The object side of center thickness CT7 and first lens to the optical imagery eyeglass group imaging surface on the optical axis away from
Meet 1.5 < of < CT7/TTL × 10 2.5 from TTL.
9. optical imagery eyeglass group according to claim 1, which is characterized in that the maximum of the object side of the 6th lens
The maximum effective radius DT71 of the object side of effective radius DT61 and the 7th lens meets 0.2 < DT61/DT71 < 0.7.
10. optical imagery eyeglass group according to claim 1, which is characterized in that the song of the object side of first lens
Rate radius R1, the radius of curvature R 2 of image side surface of first lens and the effective focal length f1 of first lens meet 0 < (R1
+ R2)/| f1 | < 0.5.
11. optical imagery eyeglass group according to claim 1, which is characterized in that the song of the image side surface of the third lens
Rate radius R6 and the effective focal length f3 of the third lens meet 0 < | R6/f3 | < 0.8.
12. optical imagery eyeglass group according to claim 1, which is characterized in that the song of the object side of the 8th lens
The radius of curvature R 16 of the image side surface of rate radius R15 and the 8th lens meets -0.8 < R15/R16 < -0.3.
13. optical imagery eyeglass group according to claim 1, which is characterized in that the song of the image side surface of the 6th lens
The radius of curvature R 11 of the object side of rate radius R12 and the 6th lens meets 0.3 < R12/R11 < 1.3.
14. optical imagery eyeglass group according to claim 1, which is characterized in that the 6th lens and the described 7th are thoroughly
Spacing distance T67 of the mirror on the optical axis and the spacing distance of the 7th lens and the 8th lens on the optical axis
T78 meets 0.4 < T67/T78 < 1.0.
15. according to claim 1 to optical imagery eyeglass group described in any one of 14, which is characterized in that the optical imagery
Total effective focal length f of lens set and the Entry pupil diameters EPD of the optical imagery eyeglass group meet f/EPD < 2.0.
16. optical imagery eyeglass group according to claim 15, which is characterized in that the object side of first lens to institute
The imaging surface for stating optical imagery eyeglass group has on the imaging surface of distance TTL and the optical imagery eyeglass group on the optical axis
The half ImgH of effect pixel region diagonal line length meets TTL/ImgH < 1.4.
17. according to claim 1 to optical imagery eyeglass group described in any one of 14, which is characterized in that the optical imagery
The maximum angle of half field-of view HFOV of lens set meets 40 ° of 50 ° of < HFOV <.
It by object side to image side sequentially include: that the first lens, the second lens, third are saturating along optical axis 18. optical imagery eyeglass group
Mirror, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens, which is characterized in that
First lens have focal power；
Second lens have positive light coke；
The third lens have focal power；
4th lens have negative power；
5th lens have focal power；
6th lens have focal power, and object side is concave surface, and image side surface is convex surface；
7th lens have positive light coke；
8th lens have focal power；And
The object side of first lens to the optical imagery eyeglass group distance TTL and institute of the imaging surface on the optical axis
The half ImgH for stating effective pixel area diagonal line length on the imaging surface of optical imagery eyeglass group meets TTL/ImgH < 1.4.
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| WO2020073702A1 (en) | 2020-04-16 |
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