CN110208931A - A kind of tight shot that glass modeling is mixed - Google Patents
A kind of tight shot that glass modeling is mixed Download PDFInfo
- Publication number
- CN110208931A CN110208931A CN201910609700.3A CN201910609700A CN110208931A CN 110208931 A CN110208931 A CN 110208931A CN 201910609700 A CN201910609700 A CN 201910609700A CN 110208931 A CN110208931 A CN 110208931A
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- lens
- tight shot
- concave
- focal length
- glass
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- 239000011521 glass Substances 0.000 title claims abstract description 48
- 229920003023 plastic Polymers 0.000 claims abstract description 12
- 239000004033 plastic Substances 0.000 claims abstract description 12
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 238000009738 saturating Methods 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 6
- 238000003384 imaging method Methods 0.000 description 6
- 239000000571 coke Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004579 marble Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- 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
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/041—Lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—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
Abstract
Mixed tight shot is moulded the invention discloses a kind of glass.It includes the first lens being arranged successively from the object side to the image side, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens that the glass, which moulds mixed tight shot,；Wherein, the 4th lens are glass spherical lens, and the first lens, the second lens, the third lens, the 5th lens and the 6th lens are plastic aspheric lens；First lens are convex-concave negative-power lenses, and the second lens are concave-convex positive power lens, and the third lens are concave-convex lens, and the 4th lens are biconvex positive power lens, and the 5th lens are concave-concave negative-power lenses, and the 6th lens are biconvex positive power lens.The ratio of the focal length of second lens, the 4th lens, the 5th lens and the 6th lens and entire camera lens meets the following conditions: 4 < f2/f < 9；2.1<f4/f<2.6；-1.2<f5/f6<-1.Technical solution provided in an embodiment of the present invention does not influence tight shot performance while cost is reduced.
Description
Technical field
The present embodiments relate to field of optical device technology more particularly to a kind of glass to mould mixed tight shot.
Background technique
With the promotion of people's awareness of safety, to security protection there has also been higher level requirement, monitoring camera is born immediately.With
Zoom lens is compared, and tight shot design is simple to manufacture, and the image clearly of the moving object of shooting is stablized, and picture is fine and smooth, is allowed to
It is play an important role in safety monitoring industry.
The 4MP camera for being widely used in safety-security area at present generallys use the FNO1.6 wide-angle below of 2.8mm coke section
The field angle of security protection tight shot, the camera lens is larger, and light passing amount is larger, causes its aberration correction difficulty big, while to guarantee day
Night is confocal and high/low temperature does not run coke, typically at least needs using 2 pieces or more glass lens, the plastic aspherical element mirror of 5 pieces of collocation or more
Piece causes the quantity of tight shot interior len more, and then higher cost.
Summary of the invention
The present invention provides a kind of tight shot that glass modeling is mixed, not influence tight shot while cost is reduced
Energy.
Mould mixed tight shot the embodiment of the invention provides a kind of glass, the tight shot including from the object side to the image side according to
The first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens of secondary arrangement；Wherein, the described 4th
Lens are glass spherical lens, first lens, second lens, the third lens, the 5th lens and described
6th lens are plastic aspheric lens；
First lens are convex-concave negative-power lenses, and second lens are concave-convex positive power lens, described the
Three lens are concave-convex lens, and the 4th lens are biconvex positive power lens, and the 5th lens are that concave-concave negative power is saturating
Mirror, the 6th lens are biconvex positive power lens；
Second lens, the 4th lens, the 5th lens and the 6th lens and entire camera lens focal length
Ratio meet the following conditions:
4<f2/f<9
2.1<f4/f<2.6
-1.2<f5/f6<-1
Wherein, f is the focal length of entire camera lens；F2 is the focal length of second lens；F4 is the focal length of the 4th lens；
F5 is the focal length of the 5th lens；F6 is the focal length of the 6th lens.
Glass provided in an embodiment of the present invention mould mixed tight shot include be arranged successively from the object side to the image side it is first saturating
Mirror, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens, the 4th lens be glass spherical lens, first
Lens, the second lens, the third lens, the 5th lens and the 6th lens are plastic aspheric lens, and the first lens are negative for convex-concave
Power lenses, the second lens are concave-convex positive power lens, and the third lens are concave-convex lens, and the 4th lens are the positive light focus of biconvex
Lens are spent, the 5th lens are concave-concave negative-power lenses, and the 6th lens are biconvex positive power lens, and the second lens, the 4th are thoroughly
The ratio of the focal length of mirror, the 5th lens and the 6th lens and entire camera lens meets the following conditions: 4 < f2/f < 9, and 2.1 < f4/f <
2.6, -1.2 < f5/f6 < -1, so that the lens numbers for constituting whole camera lens are less, and only with a higher glass marble of price
Face lens, remaining lens are all made of the relatively low plastic aspheric lens of price, and then have reached reduction tight shot cost
Beneficial effect, on this basis, with above structure tight shot can reach with it is a kind of at high cost in the prior art
The identical excellent performance of tight shot has reached the beneficial effect for not influencing tight shot performance while cost is reduced.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other
Feature, objects and advantages will become more apparent upon:
Fig. 1 is the structural schematic diagram that a kind of glass provided in an embodiment of the present invention moulds mixed tight shot；
Fig. 2 be a kind of temperature provided in an embodiment of the present invention be 20 ° when visible light under tight shot defocus figure；
Fig. 3 be a kind of temperature provided in an embodiment of the present invention be 20 ° when infrared light under tight shot defocus figure；
Fig. 4 be a kind of temperature provided in an embodiment of the present invention be -40 ° when visible light under tight shot defocus figure；
Fig. 5 be a kind of temperature provided in an embodiment of the present invention be 80 ° when visible light under tight shot defocus figure；
Fig. 6 is the structural schematic diagram that another glass provided in an embodiment of the present invention moulds mixed tight shot；
Fig. 7 be a kind of temperature provided in an embodiment of the present invention be 20 ° when visible light under tight shot defocus figure；
Fig. 8 be a kind of temperature provided in an embodiment of the present invention be 20 ° when infrared light under tight shot defocus figure；
Fig. 9 be a kind of temperature provided in an embodiment of the present invention be -40 ° when visible light under tight shot defocus figure；
Figure 10 be a kind of temperature provided in an embodiment of the present invention be 80 ° when visible light under tight shot defocus figure；
Figure 11 is the structural schematic diagram that another glass provided in an embodiment of the present invention moulds mixed tight shot；
Figure 12 be a kind of temperature provided in an embodiment of the present invention be 20 ° when visible light under tight shot defocus figure；
Figure 13 be a kind of temperature provided in an embodiment of the present invention be 20 ° when infrared light under tight shot defocus figure；
Figure 14 be a kind of temperature provided in an embodiment of the present invention be -40 ° when visible light under tight shot defocus figure；
Figure 15 be a kind of temperature provided in an embodiment of the present invention be 80 ° when visible light under tight shot defocus figure.
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, a kind of glass proposed according to the present invention is moulded the specific embodiment of mixed tight shot, structure,
Feature and its effect, detailed description is as follows.
Mould mixed tight shot the embodiment of the invention provides a kind of glass, the tight shot including from the object side to the image side according to
The first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens of secondary arrangement；Wherein, the described 4th
Lens are glass spherical lens, first lens, second lens, the third lens, the 5th lens and described
6th lens are plastic aspheric lens；
First lens are convex-concave negative-power lenses, and second lens are concave-convex positive power lens, described the
Three lens are concave-convex lens, and the 4th lens are biconvex positive power lens, and the 5th lens are that concave-concave negative power is saturating
Mirror, the 6th lens are biconvex positive power lens；
Second lens, the 4th lens, the 5th lens and the 6th lens and entire camera lens focal length
Ratio meet the following conditions:
4<f2/f<9
2.1<f4/f<2.6
-1.2<f5/f6<-1
Wherein, f is the focal length of entire camera lens；F2 is the focal length of second lens；F4 is the focal length of the 4th lens；
F5 is the focal length of the 5th lens；F6 is the focal length of the 6th lens.
Glass provided in an embodiment of the present invention mould mixed tight shot include be arranged successively from the object side to the image side it is first saturating
Mirror, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens, the 4th lens be glass spherical lens, first
Lens, the second lens, the third lens, the 5th lens and the 6th lens are plastic aspheric lens, and the first lens are negative for convex-concave
Power lenses, the second lens are concave-convex positive power lens, and the third lens are concave-convex lens, and the 4th lens are the positive light focus of biconvex
Lens are spent, the 5th lens are concave-concave negative-power lenses, and the 6th lens are biconvex positive power lens, and the second lens, the 4th are thoroughly
The ratio of the focal length of mirror, the 5th lens and the 6th lens and entire camera lens meets the following conditions: 4 < f2/f < 9, and 2.1 < f4/f <
2.6, -1.2 < f5/f6 < -1, so that the lens numbers for constituting whole camera lens are less, and only with a higher glass marble of price
Face lens, remaining lens are all made of the relatively low plastic aspheric lens of price, and then have reached reduction tight shot cost
Beneficial effect, on this basis, the tight shot with above structure can reach and fixed-focus at high cost in the prior art
The identical excellent performance of camera lens has reached the beneficial effect for not influencing tight shot performance while cost is reduced.
It is the core concept of the application above, following will be combined with the drawings in the embodiments of the present invention, to the embodiment of the present invention
In technical solution be clearly and completely described, it is clear that described embodiments are only a part of the embodiments of the present invention,
Instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative labor
Under the premise of dynamic, every other embodiment obtained be shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, but the present invention can be with
Implemented using other than the one described here other embodiments, those skilled in the art can be without prejudice in the present invention
Similar popularization is done in the case where culvert, therefore the present invention is not limited by the specific embodiments disclosed below.
Secondly, combination schematic diagram of the present invention is described in detail, when describing the embodiments of the present invention, for purposes of illustration only, table
The schematic diagram of showing device device architecture not makees partial enlargement according to general proportion, and the schematic diagram is example,
This should not limit the scope of protection of the invention.In addition, the three-dimensional space of length, width and height should be included in actual fabrication
Size.
Fig. 1 is the structural schematic diagram that a kind of glass provided in an embodiment of the present invention moulds mixed tight shot.As shown in Figure 1,
It includes the first lens 10 being arranged successively from the object side to the image side, the second lens 20, the third lens that the glass, which moulds mixed tight shot,
30, the 4th lens 40, the 5th lens 50 and the 6th lens 60；Wherein, the 4th lens 40 are glass spherical lens, the first lens
10, the second lens 20, the third lens 30, the 5th lens 50 and the 6th lens 60 are plastic aspheric lens.
First lens 10 are convex-concave negative-power lenses, and the second lens 20 are concave-convex positive power lens, the third lens 30
For concave-convex lens, the 4th lens 40 are biconvex positive power lens, and the 5th lens 50 are concave-concave negative-power lenses, the 6th lens
60 be biconvex positive power lens.
The ratio of the focal length of second lens 20, the 4th lens 40, the 5th lens 50 and the 6th lens 60 and entire camera lens is full
Sufficient the following conditions: 4 < f2/f < 9；2.1<f4/f<2.6；- 1.2 < f5/f6 < -1, wherein f is the focal length of entire camera lens；F2 is
The focal length of two lens 20；F4 is the focal length of the 4th lens 40；F5 is the focal length of the 5th lens 50；F6 is the coke of the 6th lens 60
Away from.
It should be noted that the present embodiment is not especially limited the focal power of the third lens 30, i.e., the third lens 30 can
Think positive power lens, or negative-power lenses, those skilled in the art can be saturating to third according to actual needs
The focal power of mirror 30 is reasonably selected.
It should also be noted that, the present embodiment is also not especially limited the focal length of the first lens 10 and the third lens 30,
Meeting between above-mentioned second lens 20, the 4th lens 40, the 5th lens 50, the 6th lens 60 and entire camera lens focal power article
Under the premise of part, the focal length of the first lens 10 and the third lens 30 can be adjusted rationally according to actual needs.
Illustratively, glass provided in this embodiment is moulded mixed tight shot and be can be realized in 1/2.7 inch of target surface CMOS
Under field angle be 140 °, FNO=1.6, it is seen that can reach the resolution ratio of up to four mega pixels under light and infrared light, and
Have temperature compensation function, does not run burnt resolution energy to+80 degree with -40 degree, become 4MP day and night confocal large aperture wide-angle
Security protection tight shot can be widely applied under the higher security protection scene of performance requirement.And only one lens in the multiple lens of camera lens
Price is higher, and the price of rest of the lens is low, and the lens total quantity of entire camera lens is also few so that cost is relatively low for camera lens, and then with compared with
Low cost realizes performance identical with expensive camera lens in the prior art.
Glass provided in this embodiment mould mixed tight shot include the first lens 10 being arranged successively from the object side to the image side,
Second lens 20, the third lens 30, the 4th lens 40, the 5th lens 50 and the 6th lens 60, the 4th lens 40 are glass spherical surface
Lens, the first lens 10, the second lens 20, the third lens 30, the 5th lens 50 and the 6th lens 60 are that plastic aspherical element is saturating
Mirror, the first lens 10 are convex-concave negative-power lenses, and the second lens 20 are concave-convex positive power lens, and the third lens 30 are bumps
Lens, the 4th lens 40 are biconvex positive power lens, and the 5th lens 50 are concave-concave negative-power lenses, and the 6th lens 60 are double
Convex positive power lens, the second lens 20, the 4th lens 40, the 5th lens 50 and the 6th lens 60 and the focal length of entire camera lens
Ratio meets the following conditions: 4 < f2/f < 9,2.1 < f4/f < 2.6, -1.2 < f5/f6 < -1, so that constituting the number of lenses of whole camera lens
Measure less, and only with the higher glass spherical lens of a price, it is non-that remaining lens is all made of the relatively low plastics of price
Spherical lens, and then reached the beneficial effect for reducing tight shot cost, on this basis, the fixed-focus mirror with above structure
Head can reach excellent performance identical with a kind of tight shot at high cost in the prior art, and having reached is reducing the same of cost
When do not influence the beneficial effect of tight shot performance.
Optionally, the first lens 10 and the second lens 20 are abutted and are assembled against assembly, the second lens 20 and the third lens 30.
It should be noted that being without medium between two lens against being no longer arranged between two lens any against assembly
Other component does not have gap yet.Such setting can reduce the total quantity of component in tight shot, simplify tight shot knot
Structure, and assembly is simple and easy to operate, is conducive to simplify fixed-focus preparation process.
Optionally, on the basis of the above embodiments, the third lens 30 and the 4th lens 40 are filled by the first spacer ring close-fitting
Match, the 4th lens 40 and the 5th lens 50 are assembled by the second spacer ring close-fitting.
It should be noted that on the one hand can be avoided contact wear between two lens by spacer ring close-fitting, ensure that
The not frayed influence of the performance of mirror is deteriorated, and on the other hand by the way that the size of spacer ring is rationally arranged, enables between two lens
Distance reach pre-determined distance, guarantee that the distance between two lens are accurate.
Optionally, on the basis of the above embodiments, the 5th lens 50 and the 6th lens 60 are against assembly.
It should be noted that the present embodiment is only with the first lens 10 and the second lens 20 against assembly, 20 He of the second lens
The third lens 30 are against assembly, and the third lens 30 and the 4th lens 40 are by the assembly of the first spacer ring close-fitting, the 4th lens 40 and the
Five lens 50 are assembled by the second spacer ring close-fitting, and the 5th lens 50 and the 6th lens 60 are illustratively said for assembly
Bright and non-limiting, in the other embodiments of the present embodiment, the assembly method between adjacent lens can also be other situations,
The present embodiment is not especially limited this, and all can be formed using lens combination provided in this embodiment has above-mentioned performance
The scheme of camera lens is in the protection scope of the present embodiment.
Optionally, the face type of non-spherical lens meets formula:
Wherein, z indicate it is aspherical along optical axis direction height be y position when, away from aspheric vertex of surface apart from rise, r
Radial distance on diagonal line, k are the circular cone coefficient of best fit circular cone, and c is the inverse of radius of curvature, and A, B, C, D, E, F are
Asphericity coefficient.
Illustratively, as described above, the FNO=1.6 of tight shot.Further, tight shot is in 1/2.7 inch of target surface
Field angle FOV under CMOS is equal to 140 °.
It is understood that above-mentioned performance characteristic is a kind of expensive 4MP days night work zoom lens in the prior art
Performance characteristic, the present embodiment have reached performance as above using the relatively lower tight shot of price.
It should be noted that in the other embodiments of the present embodiment, the performance of tight shot provided in this embodiment
Also the performance that can be close to above-mentioned expensive 4MP days night work zoom lens in the prior art, specifically can be according to user's tolerable
Degree is adjusted, and all schemes within the scope of user's tolerable are in the protection scope of the present embodiment.
Three embodiments presented below carry out illustrating for scheme:
Embodiment one
Illustratively, the glass that the present embodiment one provides moulds the structure of mixed tight shot referring specifically to Fig. 1.
Specifically, glass moulds the second lens 20, the 4th lens 40, the 5th lens 50, the 6th lens in mixed tight shot
60 and whole camera lens for example following one institutes of table of field angle and FNO at 1/2.7 inch of target surface CMOS of focal length and tight shot
Show.
Table one
First lens 10, the second lens 20, the third lens 30, the 4th lens 40, the 5th lens 50, the 6th lens 60 and
The structural parameters of imaging plate 70 are as shown in following table two.Specifically, table two indicates the lens data being arranged successively by object space to image space,
Including face type type, radius R (unit: mm), thickness D (unit: mm), refractive index N, best fit circular cone circular cone coefficient K, sequence
Numbers 1,2 be the object side surface and image interface of the first lens 10, and serial number 3,4 is the object side surface and image space table of the second lens 20
Face, serial number 5,6 are the object side surface and image interface of the third lens 30, and serial number 7,8 is the object side surface and picture of the 4th lens 40
Square surface, serial number 9,10 are the object side surface and image interface of the 5th lens 50, and serial number 9,10 is the object space table of the 5th lens 50
Face and image interface, serial number 11,12 are the object side surface and image interface of the 6th lens 60, and serial number 13,14 is imaging plate 70
Object side surface and image interface.
Wherein, in table two face serial number 1,2,3,4,5,6,9,10,11,12 face be it is aspherical, table three show this hair
The face shape parameter of non-spherical lens in the tight shot that bright embodiment provides.
Table two
| Face serial number | Face type | R | D | N | K |
| 1 | It is aspherical | 8.47 | 1.29 | 1.55 | -1.00 |
| 2 | It is aspherical | 2.17 | 2.51 | -0.25 | |
| 3 | It is aspherical | -6.70 | 2.99 | 1.64 | -11.00 |
| 4 | It is aspherical | -5.80 | 1.67 | -2.93 | |
| 5 | It is aspherical | -13.32 | 1.66 | 1.54 | -5.01 |
| 6 | It is aspherical | -7.84 | 0.07 | -3.65 | |
| 7 | Spherical surface | 7.17 | 3.24 | 1.50 | 0.00 |
| 8 | Spherical surface | -7.17 | 0.07 | 0.00 | |
| 9 | It is aspherical | -29.78 | 0.81 | 1.64 | 1.09 |
| 10 | It is aspherical | 4.09 | 0.07 | -2.89 | |
| 11 | It is aspherical | 4.11 | 2.30 | 1.54 | 0.03 |
| 12 | It is aspherical | -8.23 | 4.80 | 2.12 | |
| 13 | Plane | 0.00 | 0.80 | 1.52 | 0.00 |
| 14 | Plane | 0.00 | 0.10 | 0.00 |
Specifically, the asphericity coefficient of tight shot is as shown in following table three.
Table three
| Face serial number | A | B | C | D | E | F |
| 1 | -2.189E-03 | 2.650E-05 | 4.115E-06 | -1.947E-07 | 2.911E-09 | 0.000E+00 |
| 2 | -1.225E-03 | 7.469E-04 | -3.098E-04 | 3.650E-05 | -2.101E-06 | 0.000E+00 |
| 3 | -3.830E-03 | 3.235E-05 | 1.421E-05 | -2.253E-06 | -4.306E-07 | 0.000E+00 |
| 4 | 1.391E-03 | 1.273E-04 | -1.765E-05 | 1.208E-06 | -3.345E-08 | 0.000E+00 |
| 5 | 3.400E-03 | 1.020E-04 | -1.100E-05 | 3.804E-06 | -2.385E-07 | 0.000E+00 |
| 6 | 3.018E-04 | 1.663E-04 | -4.187E-06 | 4.868E-07 | -1.976E-08 | 0.000E+00 |
| 9 | -3.012E-03 | -4.288E-04 | -9.931E-05 | 9.377E-06 | -4.047E-07 | 0.000E+00 |
| 10 | 1.411E-03 | 1.163E-04 | -2.586E-06 | 1.039E-07 | -1.105E-07 | 0.000E+00 |
| 11 | -8.023E-03 | 2.082E-04 | -4.257E-05 | 3.911E-06 | -8.759E-08 | 0.000E+00 |
| 12 | 2.607E-04 | -1.371E-04 | 1.920E-05 | -5.183E-06 | 5.343E-07 | 0.000E+00 |
Wherein, -2.189E-03 indicates that the coefficient A of face serial number 1 is -2.189 × 10-3。
Fig. 2 be a kind of temperature provided in an embodiment of the present invention be 20 ° when visible light under tight shot defocus figure.Fig. 3 is
A kind of temperature provided in an embodiment of the present invention be 20 ° when infrared light under tight shot defocus figure.Fig. 4 is that the embodiment of the present invention mentions
Supply a kind of temperature be -40 ° when visible light under tight shot defocus figure.Fig. 5 is a kind of temperature provided in an embodiment of the present invention
When being 80 ° under visible light tight shot defocus figure.The glass that Fig. 2 to Fig. 5 is based on the offer of the present embodiment one moulds mixed fixed-focus
Camera lens obtains.Specifically, referring to figs. 2 and 3, it is day and night confocal that glass provided in this embodiment moulds mixed tight shot.Referring to figure
1, Fig. 4 and Fig. 5, glass provided in this embodiment moulds mixed tight shot, and there are -40 degree not run burnt resolution energy to+80 degree.
Embodiment two
Fig. 6 is the structural schematic diagram that another glass provided in an embodiment of the present invention moulds mixed tight shot.The present embodiment
Glass moulds the structure of mixed tight shot referring to Fig. 6 in two.
Specifically, glass moulds the second lens 20, the 4th lens 40, the 5th lens 50, the 6th lens in mixed tight shot
60 and whole camera lens field angle and for example following four institutes of table of FNO in 1/2.7 inch of target surface CMOS of focal length and tight shot
Show.
Table four
First lens 10, the second lens 20, the third lens 30, the 4th lens 40, the 5th lens 50, the 6th lens 60 and
The structural parameters of imaging plate 70 are as shown in following table five.Specifically, table five indicates the lens data being arranged successively by object space to image space,
Including face type type, radius R (unit: mm), thickness D (unit: mm), refractive index N, best fit circular cone circular cone coefficient K, sequence
Numbers 1,2 be the object side surface and image interface of the first lens 10, and serial number 3,4 is the object side surface and image space table of the second lens 20
Face, serial number 5,6 are the object side surface and image interface of the third lens 30, and serial number 7,8 is the object side surface and picture of the 4th lens 40
Square surface, serial number 9,10 are the object side surface and image interface of the 5th lens 50, and serial number 9,10 is the object space table of the 5th lens 50
Face and image interface, serial number 11,12 are the object side surface and image interface of the 6th lens 60, and serial number 13,14 is imaging plate 70
Object side surface and image interface.
Wherein, in table five face serial number 1,2,3,4,5,6,9,10,11,12 face be it is aspherical, table six show this hair
The face shape parameter of non-spherical lens in the tight shot that bright embodiment provides.
Table five
| Face serial number | Face type | R | D | N | K |
| 1 | It is aspherical | 4.22 | 1.03 | 1.55 | -2.16 |
| 2 | It is aspherical | 1.76 | 2.36 | -0.82 | |
| 3 | It is aspherical | -9.56 | 2.10 | 1.64 | -5.03 |
| 4 | It is aspherical | -5.19 | 0.28 | -2.38 | |
| 5 | It is aspherical | -3.53 | 2.72 | 1.54 | -1.50 |
| 6 | It is aspherical | -5.05 | 0.85 | -1.85 | |
| 7 | Spherical surface | 7.20 | 3.36 | 1.50 | 0.00 |
| 8 | Spherical surface | -7.20 | 0.07 | 0.00 | |
| 9 | It is aspherical | -313.33 | 0.90 | 1.64 | 3.09 |
| 10 | It is aspherical | 3.80 | 0.07 | -2.85 | |
| 11 | It is aspherical | 4.01 | 2.95 | 1.54 | -0.06 |
| 12 | It is aspherical | -6.38 | 4.80 | 2.0 | |
| 13 | Plane | 0.00 | 0.80 | 1.52 | 0.00 |
| 14 | Plane | 0.00 | 0.10 | 0.00 |
Specifically, the asphericity coefficient of tight shot is as shown in following table six.
Table six
Wherein, -2.144E-03 indicates that the coefficient A of face serial number 1 is -2.144 × 10-3。
Fig. 7 be a kind of temperature provided in an embodiment of the present invention be 20 ° when visible light under tight shot defocus figure.Fig. 8 is
A kind of temperature provided in an embodiment of the present invention be 20 ° when infrared light under tight shot defocus figure.Fig. 9 is that the embodiment of the present invention mentions
Supply a kind of temperature be -40 ° when visible light under tight shot defocus figure.Figure 10 is a kind of temperature provided in an embodiment of the present invention
When being 80 ° under visible light tight shot defocus figure.The glass that Fig. 7 to Figure 10 is based on the offer of the present embodiment two moulds mixed fixed-focus
Camera lens obtains.Specifically, referring to figs. 7 and 8, it is day and night confocal that glass provided in this embodiment moulds mixed tight shot.Referring to figure
7, Fig. 9 and Figure 10, glass provided in this embodiment moulds mixed tight shot, and there are -40 degree not run burnt resolution energy to+80 degree.
Embodiment three
Figure 11 is the structural schematic diagram that another glass provided in an embodiment of the present invention moulds mixed tight shot.The present embodiment
Glass moulds the structure of mixed tight shot referring to Figure 11 in three.
Specifically, glass moulds the second lens 20, the 4th lens 40, the 5th lens 50, the 6th lens in mixed tight shot
60 and whole camera lens field angle and for example following seven institutes of table of FNO in 1/2.7 inch of target surface CMOS of focal length and tight shot
Show.
Table seven
| f2/f | 4.7 |
| f4/f | 2.5 |
| f5/f6 | -1.0 |
| Field angle | 135.0 |
| FNO | 1.6 |
First lens 10, the second lens 20, the third lens 30, the 4th lens 40, the 5th lens 50, the 6th lens 60 and
The structural parameters of imaging plate 70 are as shown in following table eight.Specifically, table eight indicates the lens data being arranged successively by object space to image space,
Including face type type, radius R (unit: mm), thickness D (unit: mm), refractive index N, best fit circular cone circular cone coefficient K, sequence
Numbers 1,2 be the object side surface and image interface of the first lens 10, and serial number 3,4 is the object side surface and image space table of the second lens 20
Face, serial number 5,6 are the object side surface and image interface of the third lens 30, and serial number 7,8 is the object side surface and picture of the 4th lens 40
Square surface, serial number 9,10 are the object side surface and image interface of the 5th lens 50, and serial number 9,10 is the object space table of the 5th lens 50
Face and image interface, serial number 11,12 are the object side surface and image interface of the 6th lens 60, and serial number 13,14 is imaging plate 70
Object side surface and image interface.
Wherein, in table eight face serial number 1,2,3,4,5,6,9,10,11,12 face be it is aspherical, table nine show this hair
The face shape parameter of non-spherical lens in the tight shot that bright embodiment provides.
Table eight
| Face serial number | Face type | R | D | N | K |
| 1 | It is aspherical | 4.65 | 0.95 | 1.55 | -2.3 |
| 2 | It is aspherical | 1.81 | 2.58 | -1.5 | |
| 3 | It is aspherical | -11.45 | 2.38 | 1.63 | -2.1 |
| 4 | It is aspherical | -5.58 | 0.36 | -3.5 | |
| 5 | It is aspherical | -3.66 | 3.64 | 1.54 | -2.6 |
| 6 | It is aspherical | -4.62 | 0.07 | -5.1 | |
| 7 | Spherical surface | 7.31 | 3.60 | 1.50 | 0.00 |
| 8 | Spherical surface | -7.31 | 0.07 | 0.00 | |
| 9 | It is aspherical | -52.56 | 0.80 | 1.63 | 1.8 |
| 10 | It is aspherical | 3.62 | 0.14 | -4.2 | |
| 11 | It is aspherical | 4.51 | 2.16 | 1.54 | 0.5 |
| 12 | It is aspherical | -5.68 | 4.74 | -1.9 | |
| 13 | Plane | 0.00 | 0.80 | 1.52 | 0.00 |
| 14 | Plane | 0.00 | 0.10 | 0.00 |
Specifically, the asphericity coefficient of tight shot is as shown in following table nine.
Table nine
Wherein, -3.411E-03 indicates that the coefficient A of face serial number 1 is -3.411 × 10-3。
Figure 12 be a kind of temperature provided in an embodiment of the present invention be 20 ° when visible light under tight shot defocus figure.Figure 13
Be a kind of temperature provided in an embodiment of the present invention be 20 ° when infrared light under tight shot defocus figure.Figure 14 is implementation of the present invention
Example provide a kind of temperature be -40 ° when visible light under tight shot defocus figure.Figure 15 is one kind provided in an embodiment of the present invention
Temperature be 80 ° when visible light under tight shot defocus figure.Figure 12 to Figure 15 is based on the glass modeling mixing of the offer of the present embodiment three
Tight shot obtain.Specifically, glass provided in this embodiment moulds mixed tight shot day and night altogether referring to Figure 12 and Figure 13
It is burnt.Referring to Figure 12, Figure 14 and Figure 15, glass provided in this embodiment moulds mixed tight shot, and there are -40 degree not run coke to+80 degree
Resolution energy.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts, be combined with each other and substitutes without departing from protection scope of the present invention.Therefore, although by above embodiments to this
Invention is described in further detail, but the present invention is not limited to the above embodiments only, is not departing from present inventive concept
In the case of, it can also include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (7)
1. a kind of glass moulds mixed tight shot, which is characterized in that including be arranged successively from the object side to the image side the first lens, the
Two lens, the third lens, the 4th lens, the 5th lens and the 6th lens；Wherein, the 4th lens are glass spherical lens,
First lens, second lens, the third lens, the 5th lens and the 6th lens are plastics aspheric
Face lens；
First lens are convex-concave negative-power lenses, and second lens are concave-convex positive power lens, and the third is saturating
Mirror is concave-convex lens, and the 4th lens are biconvex positive power lens, and the 5th lens are concave-concave negative-power lenses, institute
Stating the 6th lens is biconvex positive power lens；
The ratio of the focal length of second lens, the 4th lens, the 5th lens and the 6th lens and entire camera lens
Value meets the following conditions:
4<f2/f<9；
2.1<f4/f<2.6；
-1.2<f5/f6<-1；
Wherein, f is the focal length of entire camera lens；F2 is the focal length of second lens；F4 is the focal length of the 4th lens；F5 is
The focal length of 5th lens；F6 is the focal length of the 6th lens.
2. tight shot according to claim 1, which is characterized in that first lens and second lens are against dress
Match；Second lens and the third lens are against assembly.
3. tight shot according to claim 2, which is characterized in that the third lens and the 4th lens pass through the
The assembly of one spacer ring close-fitting；4th lens and the 5th lens are assembled by the second spacer ring close-fitting.
4. tight shot according to claim 3, which is characterized in that the 5th lens and the 6th lens are against dress
Match.
5. tight shot according to claim 1, which is characterized in that the face type of the non-spherical lens meets formula:
Wherein, z indicate it is aspherical along optical axis direction height be y position when, away from aspheric vertex of surface apart from rise, r is diagonal
Radial distance on line, k are the circular cone coefficient of best fit circular cone, and c is the inverse of radius of curvature, and A, B, C, D, E, F are aspheric
Face coefficient.
6. tight shot according to claim 1, which is characterized in that the FNO=1.6 of the tight shot.
7. tight shot according to claim 1, which is characterized in that the tight shot is in 1/2.7 inch of target surface CMOS
Under field angle FOV be equal to 140 °.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114019656A (en) * | 2021-11-15 | 2022-02-08 | 江西凤凰光学科技有限公司 | Small wide-angle high-low temperature day and night confocal lens |
| CN115128773A (en) * | 2021-12-24 | 2022-09-30 | 厦门力鼎光电股份有限公司 | Fisheye lens |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109116519A (en) * | 2018-10-19 | 2019-01-01 | 中山联合光电科技股份有限公司 | A kind of large aperture wide-angle monitoring imaging system |
| CN209946511U (en) * | 2019-07-08 | 2020-01-14 | 东莞市宇瞳光学科技股份有限公司 | Glass-plastic mixed fixed-focus lens |
-
2019
- 2019-07-08 CN CN201910609700.3A patent/CN110208931A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109116519A (en) * | 2018-10-19 | 2019-01-01 | 中山联合光电科技股份有限公司 | A kind of large aperture wide-angle monitoring imaging system |
| CN209946511U (en) * | 2019-07-08 | 2020-01-14 | 东莞市宇瞳光学科技股份有限公司 | Glass-plastic mixed fixed-focus lens |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114019656A (en) * | 2021-11-15 | 2022-02-08 | 江西凤凰光学科技有限公司 | Small wide-angle high-low temperature day and night confocal lens |
| CN115128773A (en) * | 2021-12-24 | 2022-09-30 | 厦门力鼎光电股份有限公司 | Fisheye lens |
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