CN110133827A - Bugeye lens - Google Patents
Bugeye lens Download PDFInfo
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- CN110133827A CN110133827A CN201910351593.9A CN201910351593A CN110133827A CN 110133827 A CN110133827 A CN 110133827A CN 201910351593 A CN201910351593 A CN 201910351593A CN 110133827 A CN110133827 A CN 110133827A
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- lens
- bugeye
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- spheric glass
- biconvex
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
This application discloses a kind of bugeye lenses, and including the lens group being made of glass material, from object side to imaging surface, lens group successively includes: the first lens with negative power, and the first lens are curved month type spheric glass of the concave surface towards imaging surface；The second lens with negative power, the second lens are curved month type spheric glass；The third lens with negative power, the third lens are curved month type spheric glass, and concave surface is towards object side；The 4th lens with positive light coke, the 4th lens are biconvex non-spherical lens；The 5th lens with positive light coke, the 5th lens are biconvex spheric glass；The 6th lens with negative power, the 6th lens are concave spheric glass；The 7th lens with positive light coke, the 7th lens are biconvex spheric glass；The 8th lens with positive light coke, the 8th lens are biconvex aspherical lens.Using full glass lens, camera lens difficulty of processing and manufacturing cost is effectively reduced in service life and stability with higher.
Description
Technical field
This application involves camera lens fields, more particularly, to a kind of bugeye lens.
Background technique
With the continuous improvement that market environment requires bugeye lens, ultra-wide angle high definition phtographic lens also becomes increasingly
Diversification.
In order to meet all shutterbugs' use demands, to meet outdoor travel shooting, diving exploration shooting, house
Building interior trim is shot, simultaneously but also as minutes pick-up lens and monitoring camera camera lens etc., so urgently needing to grind
Produce a kind of wide-angle lens of high-quality that can correct higher order aberratons well.
Summary of the invention
Present applicant proposes a kind of bugeye lenses, to improve drawbacks described above.
In a first aspect, the embodiment of the present application provides a kind of bugeye lens, constituted including diaphragm and by glass material
Lens group, from object side to imaging surface, the lens group successively includes: the first lens with negative power, first lens
It is concave surface towards the curved month type spheric glass of the imaging surface；The second lens with negative power, second lens are recessed
Facing towards the curved month type spheric glass or curved month type aspherical lens of the imaging surface；The third lens with negative power, institute
Stating the third lens is curved month type spheric glass, and concave surface is towards the object side；The 4th lens with positive light coke, the described 4th
Lens are biconvex non-spherical lens, curved month type non-spherical lens or biconvex spheric glass；The 5th with positive light coke is saturating
Mirror, the 5th lens are biconvex spheric glass or curved month type spheric glass, and concave surface is towards the imaging surface；With negative light
6th lens of focal power, the 6th lens are concave spheric glass；The 7th lens with positive light coke, the 7th lens
For biconvex spheric glass；The 8th lens with positive light coke, the 8th lens are biconvex aspherical lens；The light
Door screen is set between the 4th lens and the 5th lens.
Further, the third lens include: the first sub-lens with negative power, and first sub-lens are double
Concave spheric glass；The second sub-lens with positive light coke, second sub-lens are ball of the convex surface towards the imaging surface
Face eyeglass, and first sub-lens and second sub-lens compose the third lens.
Further, if second lens are curved month type spheric glass, the 4th lens are that biconvex is aspherical
Lens or curved month type non-spherical lens, and the 5th lens are biconvex spheric glass.
Further, if second lens are curved month type aspherical lens, the 4th lens are biconvex spherical surface
Eyeglass, and the 5th lens are curved month type spheric glass, and concave surface is towards the imaging surface.
Further, the bugeye lens meets relational expression:
6 < TL/ (h/2) < 9；
Wherein, TLIndicate the optics overall length of entire bugeye lens, h indicates image planes height.
Further, the bugeye lens meets relational expression:
Wherein,Indicate the first power of lens,Indicate the focal power of entire bugeye lens.
Further, the bugeye lens meets relational expression:
Wherein,Indicate the focal power of entire bugeye lens,Expression thing side is to each lens combination between diaphragm
Focal power,Indicate the focal power of diaphragm to each lens combination between imaging surface.
Further, the bugeye lens meets relational expression:
70 < V8< 91；
40 < V8-V1< 70；
Wherein, V8Indicate the Abbe number of the 5th lens, V1Indicate the Abbe number of the first lens.
Further, the bugeye lens meets relational expression:
0.5 < (R2F-R2B)/R2F< 0.9；
- 0.9 < R8B/(R8F-R8B) < -0.6；
Wherein, R2FIndicate the second lens object side peak radius of curvature, R2BIndicate the second lens image side surface vertex curvature half
Diameter, R8FIndicate the 8th lens object side peak radius of curvature, R8BIndicate the 8th lens image side surface vertex curvature radius.
Further, the bugeye lens meets relational expression:
0.9 < Δ h100/Δh0< 1.1；
Wherein, Δ h0Indicate the imaging size under 0 ° to 1 ° field angle, Δ h100Indicate 99 ° to 100 ° field angles under at
As size.
Compared with the existing technology, bugeye lens provided by the present application, it is with higher to use the longevity using full glass lens
Life and stability, are effectively reduced camera lens difficulty of processing and manufacturing cost；Full glass lens make the aberration of camera lens obtain effective school
Just and have the advantages that high/low temperature generation focus drifting amount is small, is suitable for different temperature occasions, temperature is controlled；Using full glass
Glass eyeglass, and combined by the focal power of reasonably combined each eyeglass, it can reach 200 ° or more of ultra-large vision field angle, and reach day and night
Confocal effect, it is ensured that daytime and night can equally shoot the image of high imaging quality.
Other feature and advantage of the embodiment of the present application will illustrate in subsequent specification, also, partly from specification
In become apparent, or understood and implementing the embodiment of the present application.The purpose of the embodiment of the present application and other advantages can
It is achieved and obtained by structure specifically indicated in the written description, claims, and drawings.
Detailed description of the invention
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for
For those skilled in the art, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the structural schematic diagram of the bugeye lens provided in the embodiment of the present invention 1；
Fig. 2 is the field curve figure of the bugeye lens provided in the embodiment of the present invention 1；
Fig. 3 is the distortion curve of the bugeye lens provided in the embodiment of the present invention 1；
Fig. 4 is MTF curve of the bugeye lens in visible spectrum of offer in the embodiment of the present invention 1；
Fig. 5 is the structural schematic diagram of the bugeye lens provided in the embodiment of the present invention 2；
Fig. 6 is the field curve figure of the bugeye lens provided in the embodiment of the present invention 2；
Fig. 7 is the distortion curve of the bugeye lens provided in the embodiment of the present invention 2；
Fig. 8 is MTF curve of the bugeye lens in visible spectrum of offer in the embodiment of the present invention 2；
Fig. 9 is the structural schematic diagram of the bugeye lens provided in the embodiment of the present invention 3；
Figure 10 is the field curve figure of the bugeye lens provided in the embodiment of the present invention 3；
Figure 11 is the distortion curve of the bugeye lens provided in the embodiment of the present invention 3；
Figure 12 is MTF curve of the bugeye lens in visible spectrum of offer in the embodiment of the present invention 3.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give several embodiments of the invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is make it is more thorough and comprehensive to the disclosure.
It should be noted that it can directly on the other element when element is referred to as " being fixedly arranged on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be direct phase
Even, can also indirectly connected through an intermediary, the interaction that can be connection or two elements inside two elements is closed
System.For the ordinary skill in the art, above-mentioned term in the present invention specific can be understood as the case may be
Meaning.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
With the continuous improvement that market environment requires bugeye lens, ultra-wide angle high definition phtographic lens also becomes increasingly
Diversification.Bugeye lens used at present is general
Store-through always grow up, visual angle is less than normal, temperature control poor, solution it is low, at high cost, day and night not confocal as quality the defects of,
It is unable to satisfy requirement.
In order to meet all shutterbugs' use demands, to meet outdoor travel shooting, diving exploration shooting, house
Building interior trim is shot, simultaneously but also as minutes pick-up lens and monitoring camera camera lens etc., so urgently needing to grind
Produce a kind of wide-angle lens of high-quality that can correct higher order aberratons well.
Embodiment 1
Referring to Fig. 1, showing a kind of bugeye lens provided by the embodiments of the present application, from object side to imaging surface, this is super
Wide-angle lens successively includes first lens 11 with negative power, the second lens 12 with negative power, has negative light focus
The third lens 13 of degree, diaphragm 20, the 5th lens 15 with positive light coke, have the 4th lens 14 with positive light coke
The 6th lens 16, the 7th lens 17 with positive light coke, the 8th lens 18, the optical filter with positive light coke of negative power
30 and cover glass 40.
Wherein, first lens 11 are curved month type eyeglass of the concave surface towards imaging surface, and described second saturating 12 is concave surface court
To the curved month type eyeglass or curved month type aspherical lens of imaging surface, the third lens 13 are curved month type spheric glass, and concave surface
Towards the object side, the 4th lens 14 are biconvex non-spherical lens, curved month type non-spherical lens or biconvex spherical mirror
Piece, the optical filtering paper of light hole is equipped with centered on diaphragm 20, and the 5th lens 15 are biconvex spheric glass or curved month type spherical surface
Eyeglass, and concave surface, towards the imaging surface, the 6th lens 16 are concave spheric glass, the 7th lens 17 are biconvex
Spheric glass, the 6th lens 16 form cemented doublet with the 7th lens 17, and the 8th lens 18 are that biconvex is non-
Spheric glass.The optical filter 30 is any one in visible filter or infrared light optical filter, visible when selecting
When light optical filter, thickness selects 0.3mm, and when selecting infrared light optical filter, thickness selects 0.21mm, specifically can be selected infrared
Light 850nm optical filter.It should be understood that in the present embodiment, by taking the optical filter with a thickness of 0.3mm as an example, it is to be understood that
, the thickness of optical filter 30 is not only in this, simultaneously, it is seen that light optical filter can be identical with the thickness of infrared light optical filter, can also
It is different.
Wherein, the third lens 13 can be forms there are two lens combination, is also possible to be integrally formed.Specifically, Yu Ben
Apply in embodiment, the third lens 13 are formed by the first sub-lens 131 and 132 gluing of the second sub-lens.First sub-lens 131 tool
There is negative power, and is double concave type spheric glass.Second sub-lens 132 have positive light coke, and are convex surface towards the imaging
The spheric glass in face, and first sub-lens 131 and second sub-lens 132 compose the third lens 13.And needle
Integrally formed the third lens will be described in subsequent embodiment.
In addition, the curved month type spheric glass or curved month type that the second lens 12 can be concave surface towards the imaging surface are aspherical
Eyeglass, the 4th lens 14 can be biconvex non-spherical lens, curved month type non-spherical lens or biconvex spheric glass, and the 5th thoroughly
Mirror 15 can be biconvex spheric glass or curved month type spheric glass, and concave surface is towards the imaging surface.Then the first lens 11,
In the case that the third lens 13, the 6th lens 16, the 7th lens 17 and the 8th lens 18 keep above embodiment, the second lens
12, the 4th lens 14 are different with the selection mode of the 5th lens 15, and can making bugeye lens, there are many combinations:
The first, second lens 12 are curved month type spheric glass, then the 4th lens 14 are that biconvex is aspherical
Lens, the 5th lens 15 are biconvex spheric glass；
Second, second lens 12 are curved month type spheric glass, then the 4th lens 14 are that curved month type is aspherical
Lens, the 5th lens 15 are biconvex spheric glass；
The third, second lens are curved month type aspherical lens, then the 4th lens are biconvex spheric glass,
And the 5th lens are curved month type spheric glass, and concave surface is towards the imaging surface.
In the embodiment of the present application, second lens 12 are curved month type spheric glass, then the 4th lens 14 are double
Convex non-spherical lens, the 5th lens 15 are biconvex spheric glass, and above-mentioned second and the third combination, will
It is described in subsequent embodiment.Then in the embodiment of the present application, the first lens 11, second lens 12, the third lens
13, the 5th lens 15, the 6th lens 17 and the 7th lens 18 be glass spheric glass, the 4th lens 16,
8th lens 20 are Glass aspheric eyeglass, and the optical centre of each lens is located along the same line, while described super
The multilayer film for being equipped with high transmittance is plated on each lens of wide-angle lens.Meanwhile the bugeye lens diaphragm it is forward and backward with
And respectively there is a piece of low dispersion material to be made close to three positions of image planes.
It should be noted that the effect of diaphragm 20 is accurately to adjust light passing amount.In order to be clapped under the scene of dark
To clearly picture, biggish luminous flux camera lens is needed, diaphragm is set in this position, is conducive to the chief ray that control reaches image planes
Incident angle can effectively control within 5 ± 3 degree, more meet the incident of chip and require.Meanwhile the diaphragm 20 uses
Center is equipped with the light-shielding sheet of light hole, does diaphragm using light-shielding sheet, requires to reduce to lens barrel light hole, ensure that the greatest extent
The accuracy of processing reduces mismachining tolerance, is conveniently adjusted.
In addition it is also necessary to, it is noted that by being equipped with visible filter or infrared light on rear side of the 8th lens 18
One in optical filter, it is seen that light is respectively daytime and night service band with infrared light, passes through optical filter and inhibits inoperative wave band
Light penetrates, and can effectively reduce the color difference and veiling glare of optical system, promotes imaging effect.
Wherein, to limit the overall length of camera lens, and ensure that camera lens has image quality good enough, the bugeye lens 1
Meet relational expression:
6 < TL/ (h/2) < 9；
Wherein, TLIndicate the optics overall length of entire bugeye lens, h indicates image planes height.Work as TLThe value of/(h/2) is more than upper
In limited time, the whole overall length of camera lens is too long, in other words if image height can be insufficient in the case where whole shortening overall length；As TL/ (h/2)
Value when being more than lower limit, since each power of lens is excessive, camera lens aberration correction is difficult, and resolving power is remarkably decreased.
Wherein, to provide suitable Lens while good correction aberration, the bugeye lens 1, which meets, to be closed
It is formula:
Wherein,Indicate the focal power of the first lens 11,Indicate the focal power of entire bugeye lens 1.
WhenValue be more than the upper limit when, the focal power of first lens 11 is too strong, although can reach quickly receive light
Purpose, so that system overall length is become smaller, but its generate astigmatism, the curvature of field, distortion it is excessive, be difficult to correct, while first lens
11 radius of curvature can reduce, and improve difficulty of processing, and increase systematic error；WhenValue be more than lower limit when, described first
The focal power of lens 11 weakens, and above-mentioned various aberrations are opposite to be reduced, but the decline of its refractive power causes system to lengthen.
Wherein, to provide suitable Lens while good correction aberration, the bugeye lens 1, which meets, to be closed
It is formula:
Wherein,Indicate the focal power of entire bugeye lens,Expression thing side is whole to each lens between diaphragm
Focal power, i.e. the combination focal power of the first lens 11, the second lens 12, the third lens 13 and the 4th lens 14, first four
The object plane light convergence of wide visual field angle is effectively entered camera lens by the front lens group of the bugeye lens of lens composition, front lens group
It is interior, and larger aberration is not generated.WhenValue be more than the upper limit when, the combination focal power of front lens group is too strong, although can
System overall length is set to become smaller, but its spherical aberration generated is excessive, is difficult to correct；WhenValue be more than lower limit when, front lens group
Focal power weakens, and spherical aberration is opposite to be reduced, but the decline of its refractive power causes system overall length to lengthen.
Wherein, to provide suitable Lens while good correction aberration, the bugeye lens 1, which meets, to be closed
It is formula:
Wherein,Indicate the focal power of entire bugeye lens,Indicate diaphragm to each lens group between imaging surface
The focal power of conjunction, i.e. the combination focal power of the 5th lens 15, the 6th lens 16, the 7th lens 17, the 8th lens 18.Afterwards four thoroughly
At the rear lens group of the bugeye lens, the combination focal power of rear lens group and above-mentioned front lens group form and echo microscope group,
Effective cooperation front lens group, and rationally remove aberration.WhenValue be more than the upper limit when, the light focus of rear lens group is spent
By force, system overall length can be made to become smaller, but its spherical aberration, astigmatism, curvature of field for generating are excessive, are difficult to correct；WhenValue be more than
When lower limit, the focal power of rear lens group weakens, and above-mentioned aberration is opposite to be reduced, but the decline of its refractive power causes system to lengthen.
Wherein, it is the reasonably combined of guarantee material, combines burnt stability after correcting chromatic aberration, high/low temperature variation, it is described
Bugeye lens 1 meets relational expression:
70 < V8< 91；
40 < V8-V1< 70；
Wherein, V8Indicate the Abbe number of the 5th lens, i.e. V8Indicate the Abbe number of the last one lens in bugeye lens,
V1Indicate the Abbe number of the first lens.Work as V8-V1Value when being more than lower limit, chromatic aberration correction is insufficient；Work as V8-V1Value be more than the upper limit
When, then material selection is difficult.
Wherein, meet relational expression for the correction curvature of field and distortion, the bugeye lens 1:
0.5 < (R2F-R2B)/R2F< 0.9；
- 0.9 < R8B/(R8F-R8B) < -0.6；
Wherein, R2FIndicate 12 object side peak radius of curvature of the second lens, R2BIndicate that 12 image side vertex of surface of the second lens is bent
Rate radius, R8FIndicate 18 object side peak radius of curvature of the 8th lens, R8BIndicate 18 image side surface vertex curvature of the 8th lens half
Diameter.Above-mentioned relation formula defines the second lens 12 and last a piece of eyeglass, the i.e. shape of the 8th lens 18.When above-mentioned value is more than upper
In limited time, the lens distortion can reduce, but curvature of field correction is difficult；When above-mentioned value is more than lower limit, the shot field curvature can reduce,
But distortion correction is difficult.
Further, the bugeye lens 1 meets relational expression:
0.9 < Δ h100/Δh0< 1.1；
Wherein, Δ h0Indicate the imaging size under 0 ° to 1 ° field angle, Δ h100Indicate 99 ° to 100 ° field angles under at
As size.
Meet above-mentioned relation formula, the central vision unit angle and peripheral field unit angle image height ratio of camera lens can be made
Reach 0.9~1.1, to make camera lens that there is ideal imaging scale, can preferably embody appearance as horizontal camera lens than same solution
The high-resolution of head, image quality high-definition.
Further, the surface shape of the aspherical mirror of the bugeye lens 1 can be all satisfied following equations:
Wherein, z is that curved surface leaves curved surface vertex in the distance of optical axis direction, and c is the curvature on curved surface vertex, and K is secondary song
Face coefficient, h are optical axis to the distance of curved surface, and B, C, D and E are respectively quadravalence, six ranks, eight ranks and ten rank surface coefficients.
In all embodiments of the subsequent offer of the present invention, the cross section structure of bugeye lens is all seen shown in Fig. 1,
Below in each embodiment, thickness, radius of curvature, the material selecting portion point of each lens in bugeye lens are different,
The specific different parameter lists that can be found in each embodiment.
Table 1 is please referred to, the design parameter of each lens in the present embodiment is shown.
Table 1a
Table 1b
Fig. 2 and Fig. 3 are please referred to, the curvature of field and distortion curve of the bugeye lens in the present embodiment are shown, by figure
As can be seen that the curvature of field and distortion are all well corrected.Referring to Fig. 4, the MTF for the bugeye lens showing in the present embodiment
Curve, on figure it can be seen from camera lens in the present embodiment there is good resolution ratio and resolving power.
To sum up, the bugeye lens in the embodiment of the present application above-described embodiment has following compared with prior art
The advantages of:
(1) bugeye lens in the embodiment of the present application uses eight sheet glass spheric glasses, service life with higher
And stability, camera lens difficulty of processing and manufacturing cost is effectively reduced；
(2) camera lens in the embodiment of the present application use full glass spheric glass, make the aberration of camera lens effectively corrected and
Have the advantages that high/low temperature generation focus drifting amount is small, is suitable for different temperature occasions, temperature is controlled；
(3) camera lens in the embodiment of the present application uses eight full glass spheric glasses, and passes through reasonably combined each eyeglass
Focal power combination, can reach 220 ° or more of ultra-large vision field angle, and achieve the effect that day and night confocal, it is ensured that daytime and night are same
The image of high imaging quality can be shot；
(4) visible light and infrared light optical filter is arranged wherein after the 8th lens in the bugeye lens in the embodiment of the present application
One, the advantages of having reached visible light and near infrared light focal plane do not drift about；
(5) bugeye lens in the embodiment of the present application has the advantages that distortion is small, peripheral field imaging distortion is small, center
Visual field unit angle and peripheral field unit angle image height ratio can reach between 1.4-2；
(6) low dispersion material is used, camera lens color difference is effectively reduced, farthest reduces purple boundary phenomenon.
Embodiment 2
Referring to Fig. 5, the bugeye lens structural schematic diagram showing in the application second embodiment, the present embodiment are worked as
In lens construction and first embodiment in it is more or less the same, the difference is that: (1) fiveth lens 15 be curved month type
Glass aspheric eyeglass；(2) optical filter 21 in the present embodiment can be in visible filter and infrared light optical filter
Any one, but the visible filter that the present embodiment is selected is identical as the thickness of infrared light optical filter, and is 0.3mm.
Table 2 is please referred to, the relevant parameter of each eyeglass of the bugeye lens in the present embodiment is shown.
Table 2a
Table 2b
Fig. 6 and Fig. 7 are please referred to, the curvature of field and distortion curve of the bugeye lens in the present embodiment are shown, by figure
As can be seen that the curvature of field and distortion are all well corrected.Fig. 7 and Fig. 8 are please referred to, the bugeye lens showing in the present embodiment
In the MTF curve of visible spectrum and 850nm infrared spectroscopy, on figure it can be seen from camera lens in the present embodiment day and night altogether
Also there is good resolution ratio and resolving power in burnt situation.
Embodiment 3
Referring to Fig. 9, the bugeye lens structural schematic diagram showing in the application 3rd embodiment, the present embodiment are worked as
In lens construction with it is more or less the same in embodiment 1, the difference is that: the present embodiment is in order to reduce processing, assembly, object
Double cemented doublets that first sub-lens 131 of embodiment 1 and the second word lens 132 form are become a piece of eyeglass by the cost of material,
Shape is identical as the shape of the cemented doublet of first embodiment, and for falcate spherical surface spherical mirror and concave surface is towards object plane, in order to more
Good is correcting distorted, and aspherical position is moved to from the position before diaphragm to second position.And the eyeglass after diaphragm
For falcate eyeglass.
Optical filter 30 in the present embodiment can be any one in visible filter and infrared light optical filter,
But the visible filter that the present embodiment is selected is identical as the thickness of infrared light optical filter, and is 0.3mm.
Table 3 is please referred to, each eyeglass relevant parameter of bugeye lens provided in this embodiment is shown.
Table 3a
Table 3b
Figure 10 and Figure 11 are please referred to, the curvature of field and distortion curve of the bugeye lens in the present embodiment are shown, by scheming
Above as can be seen that the curvature of field and distortion are all well corrected.Figure 11 and Figure 12 are please referred to, the ultra-wide angle showing in the present embodiment
Camera lens visible spectrum and 850nm infrared spectroscopy MTF curve, on figure it can be seen from camera lens in the present embodiment in day
Also there is good resolution ratio and resolving power in night confocal situation.
Table 4 is please referred to, it is described for the corresponding optical characteristics of embodiment each in above three embodiments, including ultra-wide angle mirror
System focal length f, the F-number F#, system overall length T of headLIt while further including the corresponding phase of above-mentioned each relational expression with 2 θ of field angle
Close numerical value.
Table 4
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.It should also be noted that similar label and letter exist
Similar terms are indicated in following attached drawing, therefore, once being defined in a certain Xiang Yi attached drawing, are then not required in subsequent attached drawing
It is further defined and explained.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of bugeye lens, which is characterized in that including diaphragm and the lens group being made of glass material, from object side to imaging
Face, the lens group successively include:
The first lens with negative power, first lens are curved month type spheric glass of the concave surface towards the imaging surface；
The second lens with negative power, second lens be concave surface towards the imaging surface curved month type spheric glass or
Curved month type aspherical lens；
The third lens with negative power, the third lens are curved month type spheric glass, and concave surface is towards the object side；
The 4th lens with positive light coke, the 4th lens be biconvex non-spherical lens, curved month type non-spherical lens or
Biconvex spheric glass；
The 5th lens with positive light coke, the 5th lens are biconvex spheric glass or curved month type spheric glass, and recessed
Facing towards the imaging surface；
The 6th lens with negative power, the 6th lens are concave spheric glass；
The 7th lens with positive light coke, the 7th lens are biconvex spheric glass；
The 8th lens with positive light coke, the 8th lens are biconvex aspherical lens；
The diaphragm is set between the 4th lens and the 5th lens.
2. bugeye lens according to claim 1, which is characterized in that the third lens include:
The first sub-lens with negative power, first sub-lens are double concave type spheric glass；
The second sub-lens with positive light coke, second sub-lens are spheric glass of the convex surface towards the imaging surface, and
First sub-lens and second sub-lens compose the third lens.
3. bugeye lens according to claim 1, it is characterised in that:
If second lens are curved month type spheric glass, the 4th lens are that biconvex non-spherical lens or curved month type are non-
Spherical lens, and the 5th lens are biconvex spheric glass.
4. bugeye lens according to claim 1, it is characterised in that:
If second lens are curved month type aspherical lens, the 4th lens are biconvex spheric glass, and described the
Five lens are curved month type spheric glass, and concave surface is towards the imaging surface.
5. bugeye lens according to claim 1 to 4, which is characterized in that the bugeye lens meets relationship
Formula:
6 < TL/ (h/2) < 9；
Wherein, TLIndicate the optics overall length of entire bugeye lens, h indicates image planes height.
6. bugeye lens according to claim 1 to 4, which is characterized in that the bugeye lens meets relationship
Formula:
Wherein,Indicate the first power of lens,Indicate the focal power of entire bugeye lens.
7. bugeye lens according to claim 1 to 4, which is characterized in that the bugeye lens meets relationship
Formula:
Wherein,Indicate the focal power of entire bugeye lens,Expression thing side to each lens combination between diaphragm light
Focal power,Indicate the focal power of diaphragm to each lens combination between imaging surface.
8. bugeye lens according to claim 1 to 4, which is characterized in that the bugeye lens meets relationship
Formula:
70 < V8< 91；
40 < V8-V1< 70；
Wherein, V8Indicate the Abbe number of the 5th lens, V1Indicate the Abbe number of the first lens.
9. bugeye lens according to claim 1 to 4, which is characterized in that the bugeye lens meets relationship
Formula:
0.5 < (R2F-R2B)/R2F< 0.9；
- 0.9 < R8B/(R8F-R8B) < -0.6；
Wherein, R2FIndicate the second lens object side peak radius of curvature, R2BIndicate the second lens image side surface vertex curvature radius,
R8FIndicate the 8th lens object side peak radius of curvature, R8BIndicate the 8th lens image side surface vertex curvature radius.
10. bugeye lens according to claim 1 to 4, which is characterized in that the bugeye lens meets relationship
Formula:
0.9 < Δ h100/Δh0< 1.1；
Wherein, Δ h0Indicate the imaging size under 0 ° to 1 ° field angle, Δ h100Indicate that the imaging under 99 ° to 100 ° field angles is big
It is small.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910351593.9A CN110133827B (en) | 2019-04-28 | 2019-04-28 | Super wide-angle lens |
| PCT/CN2020/086775 WO2020221137A1 (en) | 2019-04-28 | 2020-04-24 | Ultra wide-angle lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910351593.9A CN110133827B (en) | 2019-04-28 | 2019-04-28 | Super wide-angle lens |
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| CN110133827A true CN110133827A (en) | 2019-08-16 |
| CN110133827B CN110133827B (en) | 2021-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910351593.9A Active CN110133827B (en) | 2019-04-28 | 2019-04-28 | Super wide-angle lens |
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| WO (1) | WO2020221137A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111443462A (en) * | 2020-05-18 | 2020-07-24 | 苏州东方克洛托光电技术有限公司 | Projector additional lens |
| WO2020221137A1 (en) * | 2019-04-28 | 2020-11-05 | 江西联创电子有限公司 | Ultra wide-angle lens |
| CN112285911A (en) * | 2020-09-29 | 2021-01-29 | 江西联创电子有限公司 | Super wide-angle lens and imaging device |
| CN115407486A (en) * | 2022-08-22 | 2022-11-29 | 中国科学院光电技术研究所 | Imaging optical system and imaging detection system |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4013350A (en) * | 1974-08-29 | 1977-03-22 | Asahi Kogaku Kogyo Kabushiki Kaisha | Large aperture superwide-angle lens |
| WO2010077050A2 (en) * | 2008-12-29 | 2010-07-08 | 주식회사 나노포토닉스 | Fisheye lens |
| JP2012220875A (en) * | 2011-04-13 | 2012-11-12 | Nitto Kogaku Kk | Projection lens system and projector device |
| WO2016021221A1 (en) * | 2014-08-05 | 2016-02-11 | オリンパス株式会社 | Image-forming optical system and optical device provided with same |
| CN106019532A (en) * | 2015-03-31 | 2016-10-12 | 富士胶片株式会社 | Imaging lens and imaging apparatus |
| CN106461918A (en) * | 2014-08-04 | 2017-02-22 | 大族激光科技产业集团股份有限公司 | Optical lens |
| CN107045185A (en) * | 2016-02-08 | 2017-08-15 | 富士胶片株式会社 | Imaging lens system and camera device |
| CN206906683U (en) * | 2017-07-07 | 2018-01-19 | 江西联创电子有限公司 | Panoramic shooting camera lens |
| CN108089279A (en) * | 2016-11-21 | 2018-05-29 | 精工爱普生株式会社 | Taking lens system, photographic device and projecting apparatus |
| CN108241202A (en) * | 2016-12-23 | 2018-07-03 | 信泰光学(深圳)有限公司 | Imaging lens |
| CN108519660A (en) * | 2018-04-04 | 2018-09-11 | 江西联创电子有限公司 | Bugeye lens |
| CN109143534A (en) * | 2017-06-28 | 2019-01-04 | 佳能企业股份有限公司 | The electronic device of optical lens and the application optical lens |
| CN110221397A (en) * | 2018-03-02 | 2019-09-10 | 大立光电股份有限公司 | Optical photography microscope group, image-taking device and electronic device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360118B (en) * | 2011-10-27 | 2014-03-05 | 昆明晶华光学有限公司 | Super-wide-angle eyepiece optical system |
| CN104007535B (en) * | 2014-06-10 | 2016-10-05 | 舜宇光学(中山)有限公司 | A kind of novel bugeye lens |
| KR102600453B1 (en) * | 2016-02-19 | 2023-11-10 | 삼성전자주식회사 | Optical lens assembly and electronic apparatus having the same |
| CN106338816B (en) * | 2016-10-19 | 2018-02-02 | 佛山华国光学器材有限公司 | A kind of ultra high-definition wide-angle zoom optic system |
| CN107632379B (en) * | 2017-11-01 | 2023-08-15 | 东莞市宇瞳光学科技股份有限公司 | Small ultra-large aperture starlight level ultra-wide angle zoom lens |
| CN110133827B (en) * | 2019-04-28 | 2021-06-08 | 江西联创电子有限公司 | Super wide-angle lens |
-
2019
- 2019-04-28 CN CN201910351593.9A patent/CN110133827B/en active Active
-
2020
- 2020-04-24 WO PCT/CN2020/086775 patent/WO2020221137A1/en active Application Filing
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4013350A (en) * | 1974-08-29 | 1977-03-22 | Asahi Kogaku Kogyo Kabushiki Kaisha | Large aperture superwide-angle lens |
| WO2010077050A2 (en) * | 2008-12-29 | 2010-07-08 | 주식회사 나노포토닉스 | Fisheye lens |
| JP2012220875A (en) * | 2011-04-13 | 2012-11-12 | Nitto Kogaku Kk | Projection lens system and projector device |
| CN106461918A (en) * | 2014-08-04 | 2017-02-22 | 大族激光科技产业集团股份有限公司 | Optical lens |
| WO2016021221A1 (en) * | 2014-08-05 | 2016-02-11 | オリンパス株式会社 | Image-forming optical system and optical device provided with same |
| CN106019532A (en) * | 2015-03-31 | 2016-10-12 | 富士胶片株式会社 | Imaging lens and imaging apparatus |
| CN107045185A (en) * | 2016-02-08 | 2017-08-15 | 富士胶片株式会社 | Imaging lens system and camera device |
| CN108089279A (en) * | 2016-11-21 | 2018-05-29 | 精工爱普生株式会社 | Taking lens system, photographic device and projecting apparatus |
| CN108241202A (en) * | 2016-12-23 | 2018-07-03 | 信泰光学(深圳)有限公司 | Imaging lens |
| CN109143534A (en) * | 2017-06-28 | 2019-01-04 | 佳能企业股份有限公司 | The electronic device of optical lens and the application optical lens |
| CN206906683U (en) * | 2017-07-07 | 2018-01-19 | 江西联创电子有限公司 | Panoramic shooting camera lens |
| CN110221397A (en) * | 2018-03-02 | 2019-09-10 | 大立光电股份有限公司 | Optical photography microscope group, image-taking device and electronic device |
| CN108519660A (en) * | 2018-04-04 | 2018-09-11 | 江西联创电子有限公司 | Bugeye lens |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020221137A1 (en) * | 2019-04-28 | 2020-11-05 | 江西联创电子有限公司 | Ultra wide-angle lens |
| CN111443462A (en) * | 2020-05-18 | 2020-07-24 | 苏州东方克洛托光电技术有限公司 | Projector additional lens |
| CN111443462B (en) * | 2020-05-18 | 2021-09-21 | 苏州东方克洛托光电技术有限公司 | Projector additional lens |
| CN112285911A (en) * | 2020-09-29 | 2021-01-29 | 江西联创电子有限公司 | Super wide-angle lens and imaging device |
| CN115407486A (en) * | 2022-08-22 | 2022-11-29 | 中国科学院光电技术研究所 | Imaging optical system and imaging detection system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020221137A1 (en) | 2020-11-05 |
| CN110133827B (en) | 2021-06-08 |
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