CN207008168U - A kind of high miniature zoom lens of resolution - Google Patents
A kind of high miniature zoom lens of resolution Download PDFInfo
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- CN207008168U CN207008168U CN201720783377.8U CN201720783377U CN207008168U CN 207008168 U CN207008168 U CN 207008168U CN 201720783377 U CN201720783377 U CN 201720783377U CN 207008168 U CN207008168 U CN 207008168U
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Abstract
The utility model provides a kind of resolution high miniature zoom lens, including compensation group and zoom group, realizes zoom in the distance on optical axis therebetween by adjustment, the compensation group meets following conditional with zoom group：1.0<∣fc/fb∣<2.1, wherein, fc is compensation group focal length, and fb is zoom group focal length；The zoom group includes the 4th lens, the 5th lens, the 6th lens, the 7th lens, the 8th lens, the 9th lens and the tenth lens being arranged in order along optical axis from object space to image space, the camera lens passes through the preferred of lens and collocation, it can realize to use such as in the environment of 40 DEG C+80 DEG C and not run Jiao, visible ray is with infrared imaging definition in 4 mega pixels with first-class technical indicator, overall volume is smaller, reaches the perfectly balanced of volume and performance.
Description
Technical field
It the utility model is related to lens technology field, more particularly to the miniature zoom lens that a kind of resolution is high.
Background technology
Safety-security area zoom lens due to its focal length is variable can be by the picture for needing to obtain various magnifying powers of people
And it is widely used.With the development of science and technology, various electronic component volumes more do it is smaller.Security protection industry has been driven to small
Typeization develops, and as the security lens of security monitoring video camera imaging system core component, its volume size then directly determines shooting
The overall dimensions of machine, just the miniaturization to camera lens and high-definition propose requirement for this.The utility model provides one kind and uses glass
The zoom lens that glass spheric glass mixes with glass moulding aspherical lens, possesses stronger aberration correction ability due to aspherical
Higher performance can be reached, therefore use this structure that glass spheric glass mixes with glass moulding aspherical lens can be with
Reach volume, performance it is perfectly balanced.
Utility model content
The utility model provides a kind of resolution high miniature zoom lens, solves camera lens body in the prior art
Product is larger, and definition is not high enough and the technical problem of other poor-performings.
In order to solve the above-mentioned technical problem, technical solution adopted in the utility model is：
A kind of high miniature zoom lens of resolution, including compensation group and zoom group, by adjusting therebetween in optical axis
On distance realize zoom, the compensation group meets following conditional with zoom group：1.0<∣ fc/fb∣<2.1, wherein, fc
For compensation group focal length, fb is zoom group focal length；
The zoom group include be arranged in order along optical axis from object space to image space the 4th lens, the 5th lens, the 6th lens,
7th lens, the 8th lens, the 9th lens and the tenth lens, the 4th to the tenth lens meet following condition with zoom group
Formula：
0.6<∣f4/fb∣<1.1,0.5<∣f5/fb∣<1.0,0.75<∣f6/fb∣<1.2,0.7<∣ f7/fb∣<1.4
0.25<∣f8/fb∣<0.5,0.3<∣f9/fb∣<0.7,0.25<∣f10/fb ∣<0.6, wherein, f4 to f10 is respectively in order
The focal length of 4th to the tenth lens.
Further, the 4th lens are biconvex positive power lens, and the 5th lens are that convex-concave curved month type bears light
Power lenses, the 6th lens are biconvex positive power lens, and the 7th lens are biconvex positive power lens, described
Eight lens are concave-concave negative-power lenses, and the 9th lens are biconvex positive power lens, and the tenth lens are born for concave-concave
Power lenses.
Further, the compensation group includes the first lens, the second lens being arranged in order along optical axis from object space to image space
With the 3rd lens, first lens are convex-concave negative-power lenses；Second lens are concave-concave negative-power lenses；It is described
3rd lens are convex-concave positive power lens.
Further, first lens to the tenth lens meet following condition：
| -70<f1<-50 | 1.69<n1<1.82 | 10<R1<25 | 8<R2<12 |
| -20<f2<-8 | 1.55<n2<1.8 | -25.5<R3<-17 | 10<R4<16 |
| 20<f3<25 | 1.8<n3<2.1 | 15<R5<20 | 30<R6<65 |
| 9<f4<15 | 1.6<n4<1.8 | 7<R7<12 | -60<R8<-30 |
| -12<f5<-8 | 1.7<n5<1.95 | 15<R9<25 | 5<R10<9 |
| 5<f6<9 | 1.51<n6<1.65 | 5<R11<9 | -15<R12<-10 |
| 7<f7<10 | 1.8<n7<2.0 | 60<R13<100 | -15<R14<-10 |
| -6<f8<-3 | 1.6<n8<2.0 | -15<R15<-10 | 5<R16<10 |
| 3<f9<6 | 1.6<n9<1.8 | 7<R17<9.21 | -6<R18<-4 |
| -6<f10<-3 | 1.51<n10<1.85 | -6<R19<-4 | 15<R20<20 |
Wherein, n1 to n10 represents the first lens to the refractive index of the tenth lens respectively in order；R1、R3、 R5、R7、
R9, R11, R13, R15, R17, R19 represent the first lens to the tenth lens towards object space side centre of surface respectively in order
Radius of curvature, R2, R4, R6, R8, R10, R12, R14, R16, R18, R20 represent the first lens to the tenth respectively in order
Radius of curvature of the lens towards image space side centre of surface；F1 to f3 is the focal length of the first lens to the 3rd lens.
Further, the 4th lens are aspherical lens, and its shape meets following equation：
Two surface S8 and S9 of eyeglass high order aspheric surface coefficient is as shown in the table：
| α1 | α2 | α3 | α4 | α5 | α6 | α7 | α8 | k | |
| S8 | 0 | -1.031472E-004 | -6.384651E-006 | 7.354671E-007 | -1.264723E-009 | 8.713241E-0011 | 0 | 0 | 0.12 |
| S9 | 0 | 1.517432E-004 | -1.697412E-005 | 7.337121E-007 | -2.62101E-008 | 3.231025E-010 | 0 | 0 | 13.64 |
Wherein, r represents radial coordinate, and unit is identical with length of lens unit, and c is the song corresponding to surface central radius
Rate, k are circular cone whose conic coefficient.
Preferably, the 5th lens and the 6th lens are glued forms the first balsaming lens, the 7th lens and the 8th
Lens are glued to form the second balsaming lens, and the 9th lens and the tenth lens are glued to form the 3rd balsaming lens.
The utility model provides a kind of resolution high miniature zoom lens, including compensation group and zoom group, passes through adjustment
Therebetween zoom is realized in the distance on optical axis, the compensation group meets following conditional with zoom group： 1.0<∣fc/fb
∣<2.1, wherein, fc is compensation group focal length, and fb is zoom group focal length；The zoom group include along optical axis from object space to image space successively
The 4th lens, the 5th lens, the 6th lens, the 7th lens, the 8th lens, the 9th lens and the tenth lens of arrangement, the camera lens
Pass through the preferred of lens and collocation, it is possible to achieve using not running Jiao such as in the environment of -40 DEG C -+80 DEG C, it is seen that light with it is infrared
Photoimaging definition is in 4 mega pixels with first-class technical indicator, and overall volume is smaller, and the perfection for reaching volume and performance is put down
Weighing apparatus.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the high miniature zoom lens of resolution of the utility model；
Embodiment
Below in conjunction with the accompanying drawings, embodiment of the present utility model is specifically illustrated, accompanying drawing is only for reference and explanation uses, not structure
The limitation of paired the utility model patent protection domain.
As shown in figure 1, the miniature zoom lens that a kind of resolution is high, including compensation group and zoom group, pass through both adjustment
Between in the distance on optical axis realize zoom, the compensation group meets following conditional with zoom group：1.0<∣fc/fb∣<
2.1, wherein, fc is compensation group focal length, and fb is zoom group focal length；Specific Di , ∣ fc/fb ∣ ratio is also an option that 1.2,1.4,
1.6th, one of them in 1.8 and 2.0.
The 4th lens 4, the 5th lens the 5, the 6th that the zoom group includes being arranged in order along optical axis from object space to image space are saturating
Mirror 6, the 7th lens 7, the 8th lens 8, the 9th lens 9 and the tenth lens 10, the 4th to the tenth lens meet with zoom group
Following conditional：
0.6<∣f4/fb∣<1.1,0.5<∣f5/fb∣<1.0,0.75<∣f6/fb∣<1.2,0.7<∣ f7/fb∣<1.4
0.25<∣f8/fb∣<0.5,0.3<∣f9/fb∣<0.7,0.25<∣f10/fb ∣<0.6, wherein, f4 to f10 is respectively in order
The focal length of 4th to the tenth lens.
4th lens 4 are biconvex positive power lens, and the 5th lens 5 are that convex-concave curved month type negative power is saturating
Mirror, the 6th lens 6 are biconvex positive power lens, and the 7th lens 7 are biconvex positive power lens, and the described 8th is saturating
Mirror 8 is concave-concave negative-power lenses, and the 9th lens 9 are biconvex positive power lens, and the tenth lens 10 are born for concave-concave
Power lenses.
The first lens 1, the second lens 2 and the 3rd that the compensation group includes being arranged in order along optical axis from object space to image space are saturating
Mirror 3, first lens 1 are convex-concave negative-power lenses；Second lens 2 are concave-concave negative-power lenses；Described 3rd
Lens 3 are convex-concave positive power lens.A packing ring is provided between second lens 2 and the 3rd lens 3.
Described first to the tenth lens (1 to 10) meet following condition：
Wherein, n1 to n10 represents the refractive index of the first to the tenth lens respectively in order；R1、R3、R5、 R7、R9、
R11, R13, R15, R17, R19 represent curvature half of first to the tenth lens towards object space side centre of surface respectively in order
Footpath, R2, R4, R6, R8, R10, R12, R14, R16, R18, R20 represent the first to the tenth lens towards image space respectively in order
The radius of curvature of side centre of surface；F1 to f3 is the focal length of the first lens to the 3rd lens.
4th lens 4 are aspherical lens, and its shape meets following equation：
Two surface S8 and S9 of eyeglass high order aspheric surface coefficient is as shown in the table：
| α1 | α2 | α3 | α4 | α5 | α6 | α7 | α8 | k | |
| S8 | 0 | -1.031472E-004 | -6.384651E-006 | 7.354671E-007 | -1.264723E-009 | 8.713241E-0011 | 0 | 0 | 0.12 |
| S9 | 0 | 1.517432E-004 | -1.697412E-005 | 7.337121E-007 | -2.62101E-008 | 3.231025E-010 | 0 | 0 | 13.64 |
Wherein, r represents radial coordinate, and unit is identical with length of lens unit, and c is the song corresponding to surface central radius
Rate, k are circular cone whose conic coefficient.
5th lens 5 and the 6th lens 6 are glued to form the first balsaming lens, the 7th lens 7 and the 8th lens 8
Gluing forms the second balsaming lens, the 3rd balsaming lens of glued formation of the 9th lens 9 and the tenth lens 10, between each lens
It is integrally connected by spacer ring close-fitting.Be provided with diaphragm S7 between 3rd lens 3 and the 4th lens 4, during focusing, therebetween away from
From changing, so as to which the relative distance between the 3rd lens 3 and diaphragm, diaphragm and the 4th lens 4 also changes.
In the present embodiment, the optical physics parameter of camera lens is as shown in the table：
Wherein, R is surface central radius size, and D is to correspond to optical surface to next optical surface in the distance on optical axis；
Nd corresponds to the refractive index of d light (wavelength 587nm)；S1 and S2 is the object side surface and image interface of the first lens 1, and S3 and S4 are
The object side surface and image interface of second lens 2, S5 and S6 are the object side surface and image interface of the 3rd lens 3, and S7 is diaphragm
Place plane；S8 and S9 is the object side surface and image interface of the 4th lens 4；S10, S11 and S12 are the first balsaming lens
Object side surface, cemented surface and image interface；S13, S14 and S15 are object side surface, cemented surface and the image space table of the second balsaming lens
Face；S16, S17 and S18 are object side surface, cemented surface and the image interface of the 3rd balsaming lens.
The focal range 6-20mm of whole camera lens, optics total length is less than 52mm, and has compact-sized good imaging quality
Can with burnt section it is wide the features such as.During focusing, total focal power is positive zoom group and total focal power is in optical axis between negative compensation group
Upper distance changes, so that whole lens focus changes, so that imaging effect reaches optimal.
Above disclosed is only preferred embodiment of the present utility model, it is impossible to limits right of the present utility model with this
Protection domain, therefore the equivalent variations made according to present utility model application the scope of the claims, still belong to the model that the utility model is covered
Enclose.
Claims (6)
- A kind of 1. high miniature zoom lens of resolution, it is characterised in that：Including compensation group and zoom group, pass through adjustment the two it Between in the distance on optical axis realize zoom, the compensation group meets following conditional with zoom group：1.0<∣fc/fb∣<2.1 Wherein, fc is compensation group focal length, and fb is zoom group focal length；The zoom group include be arranged in order along optical axis from object space to image space the 4th lens, the 5th lens, the 6th lens, the 7th Lens, the 8th lens, the 9th lens and the tenth lens, the 4th to the tenth lens meet following conditional with zoom group：0.6<∣f4/fb∣<1.10.5<∣f5/fb∣<1.00.75<∣f6/fb∣<1.20.7<∣f7/fb∣<1.40.25<∣f8/fb∣<0.5,0.3<∣f9/fb∣<0.7,0.25<∣f10/fb∣<0.6,Wherein, f4 to f10 is respectively the focal length of the 4th to the tenth lens in order.
- A kind of 2. high miniature zoom lens of resolution according to claim 1, it is characterised in that：4th lens are Biconvex positive power lens, the 5th lens are convex-concave curved month type negative-power lenses, and the 6th lens are the positive light of biconvex Power lenses, the 7th lens are biconvex positive power lens, and the 8th lens are concave-concave negative-power lenses, described Nine lens are biconvex positive power lens, and the tenth lens are concave-concave negative-power lenses.
- A kind of 3. high miniature zoom lens of resolution according to claim 1, it is characterised in that：The compensation group includes The first lens, the second lens and the 3rd lens being arranged in order along optical axis from object space to image space, first lens are born for convex-concave Power lenses；Second lens are concave-concave negative-power lenses；3rd lens are convex-concave positive power lens.
- A kind of 4. high miniature zoom lens of resolution according to claim 3, it is characterised in that：First lens are extremely Tenth lens meet following condition：Wherein, n1 to n10 represents the first lens to the refractive index of the tenth lens respectively in order；R1、R3、R5、R7、R9、 R11, R13, R15, R17, R19 represent song of first lens to the tenth lens towards object space side centre of surface respectively in order Rate radius, R2, R4, R6, R8, R10, R12, R14, R16, R18, R20 represent the first lens to the tenth lens respectively in order Towards the radius of curvature of image space side centre of surface；F1 to f3 is the focal length of the first lens to the 3rd lens.
- A kind of 5. high miniature zoom lens of resolution according to claim 2, it is characterised in that：4th lens are Aspherical lens, its shape meet following equation：Two surface S8 and S9 of eyeglass high order aspheric surface coefficient is as shown in the table：
α1 α2 α3 α4 α5 α6 α7 α8 k S8 0 -1.031472E-004 -6.384651E-006 7.354671E-007 -1.264723E-009 8.713241E-0011 0 0 0.12 S9 0 1.517432E-004 -1.697412E-005 7.337121E-007 -2.62101E-008 3.231025E-010 0 0 13.64 Wherein, r represents radial coordinate, and unit is identical with length of lens unit, and c is the curvature corresponding to surface central radius, and k is Circular cone whose conic coefficient. - A kind of 6. high miniature zoom lens of resolution according to claim 2, it is characterised in that：5th lens with 6th lens are glued to form the first balsaming lens, and the 7th lens and the 8th lens the second balsaming lens of glued formation are described 9th lens and the tenth lens the 3rd balsaming lens of glued formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720783377.8U CN207008168U (en) | 2017-06-30 | 2017-06-30 | A kind of high miniature zoom lens of resolution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720783377.8U CN207008168U (en) | 2017-06-30 | 2017-06-30 | A kind of high miniature zoom lens of resolution |
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| Publication Number | Publication Date |
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| CN207008168U true CN207008168U (en) | 2018-02-13 |
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| CN201720783377.8U Withdrawn - After Issue CN207008168U (en) | 2017-06-30 | 2017-06-30 | A kind of high miniature zoom lens of resolution |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110376719A (en) * | 2019-08-16 | 2019-10-25 | 杭州图谱光电科技有限公司 | A kind of high big target surface of pixel number large aperture day and night confocal camera lens |
-
2017
- 2017-06-30 CN CN201720783377.8U patent/CN207008168U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110376719A (en) * | 2019-08-16 | 2019-10-25 | 杭州图谱光电科技有限公司 | A kind of high big target surface of pixel number large aperture day and night confocal camera lens |
| CN110376719B (en) * | 2019-08-16 | 2024-02-20 | 杭州图谱光电科技有限公司 | High-pixel-number large-aperture large-target-surface day and night confocal lens |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Pinguang Inventor after: Liu Guanlu Inventor after: He Jianwei Inventor after: Mao Caiying Inventor before: Liu Guanlu |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180213 Effective date of abandoning: 20230616 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180213 Effective date of abandoning: 20230616 |