CN108254881A - A kind of optical lens - Google Patents
A kind of optical lens Download PDFInfo
- Publication number
- CN108254881A CN108254881A CN201810259726.5A CN201810259726A CN108254881A CN 108254881 A CN108254881 A CN 108254881A CN 201810259726 A CN201810259726 A CN 201810259726A CN 108254881 A CN108254881 A CN 108254881A
- Authority
- CN
- China
- Prior art keywords
- lens
- optical
- focal power
- optical lens
- biconvex
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/005—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having spherical lenses only
-
- 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
- G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
- G02B13/006—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element at least one element being a compound optical element, e.g. cemented elements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
The invention discloses a kind of optical lens, and by using the optical lens that the lens with specific structure shape of reasonable focal power distribution form, millions Pixel-level resolving power can be reached under more compact framework.Further, since framework is simple, the optical lens of the embodiment of the present invention also has relatively low cost.Using the planform of optical lens system provided by the invention, the parameters such as the Abbe number of optical glass material match preferably with image-forming condition, so that the spherical aberration of lens system, coma, astigmatism, the curvature of field, ratio chromatism, chromatism of position are corrected well, ensure while entire image planes can be uniformly imaged, to realize day and night function；Meet the requirement of 4K video cameras and it is compact-sized, appearance and size is small.In addition, all optical lenses, using spherical design, eyeglass cold machining process is functional, and glass material is at low cost and finished product camera lens price is relatively low, and volume production yield is high；It can be widely applied to protection and monitor field.
Description
Technical field
The present invention relates to optical image technology field, more particularly to a kind of optical lens.
Background technology
With the development of safety monitoring industry, 1080P HD videos have become mainstream, but safety monitoring camera lens is pursued
Target is all improving image definition forever, improves image quality, and 4K technologies are come into being；With in recent years, data transmission skill
The technological innovation and breakthrough of art, data storage technology, image processing techniques and high definition television display technology so that realize 4K points
The ultra high-definition video monitoring of resolution has been possibly realized, and will become development trend from now on, and this requires camera lens (lens systems
System) there is higher resolution ratio, to meet the imaging requirements of 4K video cameras.
At present, existing camera lens level of resolution under visible mode is only capable of meeting below 5,000,000 pixels (most of all
Below 2,000,000 pixels) video camera demand, and night be switched under infrared mode, confocal poor performance, actual imaging is clear
Clear degree is more worse than visible light effect.
In conclusion existing camera lens can not meet the growth requirement of current and following ultra high-definition safety defense monitoring system.
Invention content
A kind of optical lens provided in an embodiment of the present invention, to solve, existing camera lens framework is complicated, resolving power is relatively low, light
The problem of learning poor-performing, the picture pick-up device demand of higher camera shooting requirement can not be met.
Therefore, an embodiment of the present invention provides a kind of optical lens, include successively from the object side to image side along optical axis direction：Light
Focal power is the first negative meniscus lens, and focal power is the first positive biconvex lens, and focal power be the first biconcave lens born, light
Focal power is the second positive biconvex lens, and focal power is the first negative balsaming lens group, and focal power is the second negative balsaming lens group,
Focal power is positive third balsaming lens group, optical filter and image planes；Wherein, first meniscus lens are towards the object side
Surface is convex surface.
Preferably, in above-mentioned optical lens provided in an embodiment of the present invention, the first balsaming lens group includes：
Focal power is positive third biconvex lens；
Focal power is the second negative biconcave lens；
The third biconvex lens and second biconcave lens are seamless glued to form the first balsaming lens group.
Preferably, in above-mentioned optical lens provided in an embodiment of the present invention, the second balsaming lens group includes：
Focal power is negative third biconcave lens；
Focal power is the 4th positive biconvex lens；
The third biconcave lens and the 4th biconvex lens are seamless glued to form the second balsaming lens group.
Preferably, in above-mentioned optical lens provided in an embodiment of the present invention, the third balsaming lens group includes：
Focal power is the 5th positive biconvex lens；
Focal power is the 4th negative biconcave lens；
Focal power is the second positive meniscus lens；Wherein, second meniscus lens are towards the surface of the object side
For convex surface；
5th biconvex lens, the 4th biconcave lens and second meniscus lens are seamless glued to form the
Three balsaming lens groups.
It is the third biconvex lens, 4th pair described preferably, in above-mentioned optical lens provided in an embodiment of the present invention
The Abbe number of convex lens and second meniscus lens is all higher than 65.
Preferably, in above-mentioned optical lens provided in an embodiment of the present invention, the relative aperture of the optical lens is
1.65。
Preferably, in above-mentioned optical lens provided in an embodiment of the present invention, the effective focal length of first biconcave lens
Meet the first setting relationship, effective focal length and the optics of second biconvex lens with the effective focal length of the optical lens
The effective focal length of camera lens meets the second setting relationship；
Wherein, described first set relationship as：0.9 ＜ | f1/ f | ＜ 1.5, described second set relationship as：0.8 ＜ | f2/
F | ＜ 1.2, f1Represent the effective focal length of first biconcave lens, f2Represent the effective focal length of second biconvex lens, f tables
Show the effective focal length of the optical lens.
Preferably, in above-mentioned optical lens provided in an embodiment of the present invention, the optical lens meets following condition formulae：
L/y<3.5
Wherein：L represents the total length of the optical lens, and y represents the size of the image planes.
Preferably, in above-mentioned optical lens provided in an embodiment of the present invention, the refractive index of first biconvex lens with
The refractive index of second biconvex lens is all higher than 1.8.
Preferably, in above-mentioned optical lens provided in an embodiment of the present invention, the optical lens further includes diaphragm, described
Diaphragm is between the first balsaming lens group and the second balsaming lens group.
A kind of optical lens provided in an embodiment of the present invention, the optical lens wrap successively from the object side to image side along optical axis direction
It includes：Focal power is the first negative meniscus lens, and focal power is the first positive biconvex lens, and focal power is that the first negative concave-concave is saturating
Mirror, focal power are the second positive biconvex lens, and focal power is the first negative balsaming lens group, and focal power is that negative second is glued thoroughly
Microscope group, focal power are positive third balsaming lens group, optical filter and image planes；Wherein, first meniscus lens are described in
The surface of object side is convex surface.In this way, the light formed by using the lens with specific structure shape of reasonable focal power distribution
Camera lens is learned, millions Pixel-level resolving power can be reached under more compact framework.Further, since framework is simple, the present invention is real
The optical lens for applying example also has relatively low cost.Using the planform of optical lens system provided by the invention, optics glass
The parameters such as the Abbe number of glass material match preferably with image-forming condition so that the spherical aberration of lens system, coma, astigmatism, the curvature of field, times
Rate aberration, chromatism of position are corrected well, ensure while entire image planes can be uniformly imaged, to realize day and night
Double-purpose functional；Meet the requirement of 4K video cameras and it is compact-sized, appearance and size is small.In addition, all optical lenses are adopted
With spherical design, eyeglass cold machining process is functional, and glass material is at low cost and finished product camera lens price is relatively low, volume production yield
It is high；It can be widely applied to protection and monitor field.
Description of the drawings
Fig. 1 is the structure diagram of the optical lens in the embodiment of the present invention；
Fig. 2 is the MTF curve figure of visible light part in the embodiment of the present invention one；
Fig. 3 is the MTF curve figure of one mid-infrared light part of the embodiment of the present invention；
Fig. 4 is the MTF curve figure of visible light part in the embodiment of the present invention two；
Fig. 5 is the MTF curve figure of two mid-infrared light part of the embodiment of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes；Obviously, described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained without making creative work
Example is applied, shall fall within the protection scope of the present invention.
As shown in Figure 1, the specific embodiment of the invention provides a kind of optical lens, along optical axis direction from the object side to image side
Include successively：Focal power is the first negative meniscus lens 1, and focal power is the first positive biconvex lens 2, and focal power be the born
One biconcave lens 3, focal power are the second positive biconvex lens 4, and focal power is the first negative balsaming lens group A, and focal power is negative
The second balsaming lens group B, focal power be positive third balsaming lens group B, optical filter L and image planes F；Wherein, the first curved month type
The surface of lens 1 towards object side is convex surface.
A kind of optical lens provided in an embodiment of the present invention has specific structure shape by using the distribution of reasonable focal power
The optical lens of the lens composition of shape, can reach millions Pixel-level resolving power under more compact framework.Further, since frame
Structure is simple, and the optical lens of the embodiment of the present invention also has relatively low cost.Using optical lens system provided by the invention
The parameters such as planform, the Abbe number of optical glass material match preferably with image-forming condition so that the spherical aberration of lens system, intelligent
Difference, astigmatism, the curvature of field, ratio chromatism, chromatism of position are corrected well, ensure uniformly be imaged in entire image planes same
When, it can also realize day and night function；Meet the requirement of 4K video cameras and it is compact-sized, appearance and size is small.In addition, institute
For some optical lenses using spherical design, eyeglass cold machining process is functional, and glass material is at low cost and finished product camera lens valency
Lattice are relatively low, and volume production yield is high；It can be widely applied to protection and monitor field.
When it is implemented, in above-mentioned optical lens provided in an embodiment of the present invention, as shown in Figure 1, the first balsaming lens
Group A includes：
Focal power is positive third biconvex lens 5；
Focal power is the second negative biconcave lens 6；
It is glued to form the first balsaming lens group A that 5 and second biconcave lens 6 of third biconvex lens is seamless.
Aberration is born since focal power has for positive third biconvex lens 5, focal power is that the second negative biconcave lens 6 has
Positive aberration, by being that the second negative biconcave lens 6 is seamless glued glued to form first by third biconvex lens 5 and focal power
Lens group eliminates aberration, the clarity of optimal imaging improves the image quality of optical system, improves and divide to realize that aberration mutually compensates for
Resolution.
When it is implemented, in above-mentioned optical lens provided in an embodiment of the present invention, as shown in Figure 1, the second balsaming lens
Group B includes：
Focal power is negative third biconcave lens 7；
Focal power is the 4th positive biconvex lens 8；
It is glued to form the second balsaming lens group B that 7 and the 4th biconvex lens 8 of third biconcave lens is seamless.
Second balsaming lens group is similar with the first balsaming lens group effect, is mutually compensated for for aberration, eliminates aberration, optimization
The clarity of imaging improves the image quality of optical system, improves resolution ratio.
When it is implemented, in above-mentioned optical lens provided in an embodiment of the present invention, as shown in Figure 1, third balsaming lens
Group C includes：
Focal power is the 5th positive biconvex lens 9；
Focal power is the 4th negative biconcave lens 10；
Focal power is the second positive meniscus lens 11；Wherein, the surface of the second meniscus lens 11 towards object side is convex
Face；
5th biconvex lens 9, the 4th biconcave lens 10 and the second meniscus lens 11 are seamless glued glued to form third
Lens group C.
Third balsaming lens group is similar with the first balsaming lens group effect, is mutually compensated for for aberration, eliminates aberration, optimization
The clarity of imaging improves the image quality of optical system, improves resolution ratio.
Further, when it is implemented, in above-mentioned optical lens provided in an embodiment of the present invention, third biconvex lens,
The Abbe number of 4th biconvex lens and the second meniscus lens is all higher than 65.
Further, when it is implemented, in above-mentioned optical lens provided in an embodiment of the present invention, optical lens it is opposite
Aperture is 1.65.
Further, when it is implemented, in above-mentioned optical lens provided in an embodiment of the present invention, the first biconcave lens
Effective focal length and the effective focal length of optical lens meet the first setting relationship, first set relationship as：0.9 ＜ | f1/ f | ＜ 1.5,
f1Represent the effective focal length of the first biconcave lens, f represents the effective focal length of optical lens.
When | f1/ f | value be more than the upper limit 1.5 when, f1Opposite to become larger, i.e., focal power is opposite becomes smaller so that optic back focal is not
Foot, structure space are difficult to the parts such as red automatic switching device for optical filter of arranging；
When | f1/ f | value be less than lower limit 0.9 when, f1Opposite to become smaller, i.e., focal power is opposite becomes larger, and can so cause advanced picture
Difference increase.
Therefore, the optical lens in the embodiment of the present invention is in 0.9 ＜ of the condition that meets | f1/ f | during ＜ 1.5, can realize compared with
Good image quality and rational structure space form.
Further, when it is implemented, in above-mentioned optical lens provided in an embodiment of the present invention, the second biconvex lens
Effective focal length and the effective focal length of optical lens meet the second setting relationship, second set relationship as：0.8 ＜ | f2/ f | ＜ 1.2,
f2Represent the effective focal length of the second biconvex lens, f represents the effective focal length of optical lens.
When | f2/ f | value be more than the upper limit 1.2 when, f2Opposite to become larger, i.e., focal power is opposite becomes smaller so that optical system overall length
It is long, destroy the miniaturization of camera lens；
When | f2/ f | value be less than lower limit 0.3 when, f2Opposite to become smaller, i.e., focal power is opposite becomes larger, and can so cause advanced picture
Difference increase so as to need a large amount of lens, and makes to realize that being imaged optical system of good performance becomes by less lens arrangement
It is difficult.
Therefore, the optical lens in the embodiment of the present invention is in 0.8 ＜ of the condition that meets | f2/ f | it is reasonable realizing during ＜ 1.2
Structure space form while have preferable image quality.
Further, when it is implemented, in above-mentioned optical lens provided in an embodiment of the present invention, under optical lens meets
Row conditional：
L/y<3.5
Wherein：L represents the total length of optical lens, and y represents the size of image planes.
Further, when it is implemented, in above-mentioned optical lens provided in an embodiment of the present invention, the first biconvex lens
Refractive index and the refractive index of the second biconvex lens are all higher than 1.8.
When it is implemented, in above-mentioned optical lens provided in an embodiment of the present invention, as shown in Figure 1, optical lens also wraps
Diaphragm 12 is included, diaphragm 12 reasonably intercepts light beam between the first balsaming lens group A and the second balsaming lens group B, promotes picture
Matter.
Understanding to optical lens provided in this embodiment for convenience, below in conjunction with the accompanying drawings to light provided in this embodiment
Camera lens is learned to be described in further detail.
Two embodiments that the following contents will enumerate optical lens of the embodiment of the present invention.It should be noted that following table
First, table two and preference data of the listed data for the present invention, are not limited to the present invention, any those skilled in the art exist
After the present invention, when appropriate variation can be made to its parameter or setting, it should belong in scope of the invention.
Embodiment one：
Table one
Wherein, the optical system effective focal length that table one provides is 11.216mm, clear aperature F/1.65, and optical system is total
A length of 30.3mm.In table 1, minute surface serial number 1,2 represents two minute surfaces along light incident direction of lens 1, minute surface sequence successively
Numbers 3,4 represent two minute surfaces along light incident direction of lens 2, minute surface serial number 5,6 represent lens 3 along light incident direction
Two minute surfaces, minute surface serial number 7,8 represents two minute surfaces along light incident direction of lens 4, and minute surface serial number 9 represents lens 5
Towards the minute surface of object space, minute surface serial number 10 represents the cemented surface of lens 5 and lens 6, and minute surface serial number 11 represents lens 6 towards image space
Minute surface, minute surface serial number 12 represents minute surface of the lens 7 towards object space, and minute surface serial number 13 represents the cemented surface of lens 7 and lens 8,
Minute surface serial number 14 represents minute surface of the lens 8 towards image space, and minute surface serial number 15 represents minute surface of the lens 9 towards object space, minute surface serial number
16 represent the cemented surface of lens 9 and lens 10, and minute surface serial number 17 represents the cemented surface of lens 10 and lens 11,18 generation of minute surface serial number
Table lens 11 are towards the minute surface of image space.
When it is implemented, in above-described embodiment one, the thickness of diaphragm is 0.255mm, refractive index 5.848；Optical filter
Thickness for 0.700mm, refractive index 1.517, Abbe constant 64.212；The thickness of image planes is 0.497, and refractive index is
8.732。
In the embodiment of the present invention one, | f1/ f |=13.959/11.216=1.244 meets 0.9 ＜ | f1/ f | ＜ 1.5.
In the embodiment of the present invention one, | f2/ f |=10.677/11.216=0.952 meets 0.8 ＜ | f2/ f | ＜ 1.2.
In the embodiment of the present invention one, the Abbe number of third biconvex lens is the Abbe of the 68.525, the 4th biconvex lens
Coefficient is that the Abbe number of the 81.595, second meniscus lens is 68.525, and satisfaction is all higher than 68.
In the embodiment of the present invention one, the refractive index of the first biconvex lens is 2.001, and the refractive index of the second biconvex lens is
2.051, satisfaction is all higher than 1.8.
It in the embodiment of the present invention one, can be calculated by table one, the field angle 2w of optical lens is 44.8 degree, relative aperture
It is 1.65.
In the embodiment of the present invention one, camera lens overall length is 30.25mm, and structure is compacter.
Fig. 2 and Fig. 3 is respectively modulation transfer function (MTF) curve graph of visible light wave range and near infrared band, is represented
The synthesis resolving power of optical system, horizontal axis representation space frequency in figure, unit：Every millimeter of the number of turns (cycles/mm), longitudinal axis table
Show the numerical value of modulation transfer function (MTF), the numerical value of MTF is used for evaluating the image quality of camera lens, value range 0-1, especially
It points out, optical transfer function is the song for evaluating the mode that the image quality of an optical system is more accurate, intuitive and common
Line is higher, more smooth, shows that the image quality of system is better, stronger to the reducing power of true picture；It can from Fig. 2 and Fig. 3
To find out, it is seen that optical band and near infrared band when spatial frequency is 160lp/mm, full filed
MTF>0.3, the optical lens that this specific implementation provides to various aberrations, as spherical aberration, coma, astigmatism, the curvature of field,
Ratio chromatism, chromatism of position etc. are corrected, and so as to improve resolution ratio, can be realized under white light, lens performance reaches
The resolution ratio of 8000000 pixels.
By Fig. 2 and Fig. 3 it is found that the optical lens of the embodiment of the present invention by various aberration corrections and equilibrate to one compared with
Good level.
Embodiment two：
Table two
Wherein, the optical system effective focal length that table one provides is 11.245mm, clear aperature F/1.65, and optical system is total
A length of 30.25mm.In table 2, minute surface serial number 1,2 represents two minute surfaces along light incident direction of lens 1, minute surface sequence successively
Numbers 3,4 represent two minute surfaces along light incident direction of lens 2, minute surface serial number 5,6 represent lens 3 along light incident direction
Two minute surfaces, minute surface serial number 7,8 represents two minute surfaces along light incident direction of lens 4, and minute surface serial number 9 represents lens 5
Towards the minute surface of object space, minute surface serial number 10 represents the cemented surface of lens 5 and lens 6, and minute surface serial number 11 represents lens 6 towards picture
The minute surface of side, minute surface serial number 12 represent minute surface of the lens 7 towards object space, and minute surface serial number 13 represents the gluing of lens 7 and lens 8
Face, minute surface serial number 14 represent minute surface of the lens 8 towards image space, and minute surface serial number 15 represents minute surface of the lens 9 towards object space, minute surface sequence
Numbers 16 represent the cemented surface of lens 9 and lens 10, and minute surface serial number 17 represents the cemented surface of lens 10 and lens 11, minute surface serial number 18
Represent minute surface of the lens 11 towards image space.
When it is implemented, in above-described embodiment two, the thickness of diaphragm is 0.324mm, refractive index 5.950；Optical filter
Thickness for 0.700mm, refractive index 1.517, Abbe constant 64.212；The thickness of image planes is 2.679, and refractive index is
8.483。
In the embodiment of the present invention two, | f1/ f |=10.873/11.245=0.967 meets 0.9 ＜ | f1/ f | ＜ 1.5.
In the embodiment of the present invention two, | f2/ f |=9.600/11.245=0.854 meets 0.8 ＜ | f2/ f | ＜ 1.2.
In the embodiment of the present invention two, the Abbe number of third biconvex lens is the Abbe of the 68.525, the 4th biconvex lens
Coefficient is that the Abbe number of the 75.496, second meniscus lens is 68.525, and satisfaction is all higher than 68.
In the embodiment of the present invention two, the refractive index of the first biconvex lens is 2.001, and the refractive index of the second biconvex lens is
2.051, satisfaction is all higher than 1.8.
It in the embodiment of the present invention two, can be calculated by table two, the field angle 2w of optical lens is 44.8 degree, relative aperture
It is 1.65.
In the embodiment of the present invention two, camera lens overall length is 30.25mm, and structure is compacter.
Fig. 4 and Fig. 5 is respectively modulation transfer function (MTF) curve graph of visible light wave range and near infrared band, is represented
The synthesis resolving power of optical system, horizontal axis representation space frequency in figure, unit：Every millimeter of the number of turns (cycles/mm), longitudinal axis table
Show the numerical value of modulation transfer function (MTF), the numerical value of MTF is used for evaluating the image quality of camera lens, value range 0-1, especially
It points out, optical transfer function is the song for evaluating the mode that the image quality of an optical system is more accurate, intuitive and common
Line is higher, more smooth, shows that the image quality of system is better, stronger to the reducing power of true picture；It can from Fig. 4 and Fig. 5
To find out, it is seen that optical band and near infrared band are when spatial frequency is 160lp/mm, the MTF of full filed>0.3, this is specific real
The optical lens that existing mode provides is to various aberrations, such as spherical aberration, coma, astigmatism, the curvature of field, ratio chromatism, chromatism of position progress
Correction, so as to improve resolution ratio, can realize under white light, lens performance reaches the resolution ratio of 8,000,000 pixels.
By Fig. 4 and Fig. 5 it is found that the optical lens of the embodiment of the present invention by various aberration corrections and equilibrate to one compared with
Good level.
To sum up, the invention discloses a kind of optical lens, which wraps successively from the object side to image side along optical axis direction
It includes：Focal power is the first negative meniscus lens, and focal power is the first positive biconvex lens, and focal power is that the first negative concave-concave is saturating
Mirror, focal power are the second positive biconvex lens, and focal power is the first negative balsaming lens group, and focal power is that negative second is glued thoroughly
Microscope group, focal power are positive third balsaming lens group, optical filter and image planes；Wherein, the first meniscus lens 1 are towards the table of object side
Face is convex surface.In this way, by using the optical lens that the lens with specific structure shape of reasonable focal power distribution form, it can
To reach millions Pixel-level resolving power under more compact framework.Further, since framework is simple, the optics of the embodiment of the present invention
Camera lens also has relatively low cost.Using the planform of optical lens system provided by the invention, optical glass material Ah
The parameters such as shellfish coefficient match preferably with image-forming condition so that the spherical aberration of lens system, coma, astigmatism, the curvature of field, ratio chromatism, position
It puts aberration to be corrected well, ensures while entire image planes can be uniformly imaged, to realize day and night function；
Meet the requirement of 4K video cameras and it is compact-sized, appearance and size is small.In addition, all optical lenses are set using spherical surface
Meter, eyeglass cold machining process is functional, and glass material is at low cost and finished product camera lens price is relatively low, and volume production yield is high；It can be wide
It is general to be applied to protection and monitor field.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to including these modification and variations.
Claims (10)
1. a kind of optical lens, which is characterized in that include successively from the object side to image side along optical axis direction：Focal power is negative first
Meniscus lens, focal power are the first positive biconvex lens, and focal power is the first negative biconcave lens, and focal power is positive second
Biconvex lens, focal power are the first negative balsaming lens group, and focal power be the second negative balsaming lens group, and focal power is positive the
Three balsaming lens groups, optical filter and image planes；Wherein, the surface of first meniscus lens towards the object side is convex surface.
2. optical lens as described in claim 1, which is characterized in that the first balsaming lens group includes：
Focal power is positive third biconvex lens；
Focal power is the second negative biconcave lens；
The third biconvex lens and second biconcave lens are seamless glued to form the first balsaming lens group.
3. optical lens as claimed in claim 2, which is characterized in that the second balsaming lens group includes：
Focal power is negative third biconcave lens；
Focal power is the 4th positive biconvex lens；
The third biconcave lens and the 4th biconvex lens are seamless glued to form the second balsaming lens group.
4. optical lens as claimed in claim 3, which is characterized in that the third balsaming lens group includes：
Focal power is the 5th positive biconvex lens；
Focal power is the 4th negative biconcave lens；
Focal power is the second positive meniscus lens；Wherein, the surface of second meniscus lens towards the object side is convex
Face；
5th biconvex lens, the 4th biconcave lens and second meniscus lens are seamless glued to form third glue
Close lens group.
5. optical lens as claimed in claim 4, which is characterized in that the third biconvex lens, the 4th biconvex lens
65 are all higher than with the Abbe number of second meniscus lens.
6. optical lens as described in claim 1, which is characterized in that the relative aperture of the optical lens is 1.65.
7. optical lens as described in claim 1, which is characterized in that the effective focal length of first biconcave lens and the light
The effective focal length for learning camera lens meets the first setting relationship, the effective focal length of second biconvex lens and having for the optical lens
It imitates focal length and meets the second setting relationship；
Wherein, described first set relationship as：0.9 ＜ | f1/ f | ＜ 1.5, described second set relationship as：0.8 ＜ | f2/ f | ＜
1.2, f1Represent the effective focal length of first biconcave lens, f2Represent the effective focal length of second biconvex lens, f represents institute
State the effective focal length of optical lens.
8. optical lens as described in claim 1, which is characterized in that the optical lens meets following condition formulae：
L/y<3.5
Wherein：L represents the total length of the optical lens, and y represents the size of the image planes.
9. optical lens as claimed in claim 4, which is characterized in that the refractive index of first biconvex lens and described second
The refractive index of biconvex lens is all higher than 1.8.
10. such as claim 1-9 any one of them optical lens, which is characterized in that the optical lens further includes diaphragm, institute
Diaphragm is stated between the first balsaming lens group and the second balsaming lens group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810259726.5A CN108254881B (en) | 2018-03-27 | 2018-03-27 | Optical lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810259726.5A CN108254881B (en) | 2018-03-27 | 2018-03-27 | Optical lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108254881A true CN108254881A (en) | 2018-07-06 |
| CN108254881B CN108254881B (en) | 2020-04-03 |
Family
ID=62746533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810259726.5A Active CN108254881B (en) | 2018-03-27 | 2018-03-27 | Optical lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108254881B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110231696A (en) * | 2019-05-30 | 2019-09-13 | 浙江大华技术股份有限公司 | A kind of tight shot |
| WO2022087890A1 (en) * | 2020-10-28 | 2022-05-05 | 欧菲光集团股份有限公司 | Optical imaging system, lens module and electronic device |
| CN115390224A (en) * | 2022-09-28 | 2022-11-25 | 福建福光股份有限公司 | Zero-temperature-drift multi-scene image detection optical system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29819012U1 (en) * | 1998-10-27 | 1999-05-12 | EKOS Entwicklung und Konstruktion optischer Systeme GmbH, 12099 Berlin | Telephoto lens for a medium format camera |
| JP2000284172A (en) * | 1999-03-29 | 2000-10-13 | Fuji Photo Optical Co Ltd | Color image read lens |
| CN1920608A (en) * | 2006-09-11 | 2007-02-28 | 中国科学院上海技术物理研究所 | Ultraviolet object lens in aperture wide wave range for ultraviolet detection |
| CN202171678U (en) * | 2011-08-20 | 2012-03-21 | 福建福光数码科技有限公司 | High-resolution zoom lens for intelligent traffic system |
| JP2017058478A (en) * | 2015-09-15 | 2017-03-23 | 株式会社リコー | Image forming lens system and imaging apparatus and portable information terminal device |
| CN107656362A (en) * | 2017-11-08 | 2018-02-02 | 东莞市宇瞳光学科技股份有限公司 | The big multiplying power zoom lens of large aperture |
-
2018
- 2018-03-27 CN CN201810259726.5A patent/CN108254881B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29819012U1 (en) * | 1998-10-27 | 1999-05-12 | EKOS Entwicklung und Konstruktion optischer Systeme GmbH, 12099 Berlin | Telephoto lens for a medium format camera |
| JP2000284172A (en) * | 1999-03-29 | 2000-10-13 | Fuji Photo Optical Co Ltd | Color image read lens |
| CN1920608A (en) * | 2006-09-11 | 2007-02-28 | 中国科学院上海技术物理研究所 | Ultraviolet object lens in aperture wide wave range for ultraviolet detection |
| CN202171678U (en) * | 2011-08-20 | 2012-03-21 | 福建福光数码科技有限公司 | High-resolution zoom lens for intelligent traffic system |
| JP2017058478A (en) * | 2015-09-15 | 2017-03-23 | 株式会社リコー | Image forming lens system and imaging apparatus and portable information terminal device |
| CN107656362A (en) * | 2017-11-08 | 2018-02-02 | 东莞市宇瞳光学科技股份有限公司 | The big multiplying power zoom lens of large aperture |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110231696A (en) * | 2019-05-30 | 2019-09-13 | 浙江大华技术股份有限公司 | A kind of tight shot |
| CN110231696B (en) * | 2019-05-30 | 2022-02-18 | 浙江大华技术股份有限公司 | Fixed focus lens |
| WO2022087890A1 (en) * | 2020-10-28 | 2022-05-05 | 欧菲光集团股份有限公司 | Optical imaging system, lens module and electronic device |
| CN115390224A (en) * | 2022-09-28 | 2022-11-25 | 福建福光股份有限公司 | Zero-temperature-drift multi-scene image detection optical system |
| CN115390224B (en) * | 2022-09-28 | 2024-03-15 | 福建福光股份有限公司 | Zero-temperature-drift multi-scene image detection optical system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108254881B (en) | 2020-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101435911B (en) | Electronic imaging apparatus | |
| CN106324798B (en) | A kind of lens system and camera lens | |
| CN209014803U (en) | Wide-angle, small distortion, big image planes, high-resolution pick-up lens | |
| CN107045186B (en) | Zoom lens and its photographic device | |
| CN108254907B (en) | Zoom lens | |
| CN105143950B (en) | Zoom lens and the camera device with the zoom lens | |
| CN105334598B (en) | A kind of optical lens | |
| CN111025593B (en) | Large-aperture high-definition optical lens | |
| CN108254881A (en) | A kind of optical lens | |
| CN106324799B (en) | Capture lens systems, image-taking device and electronic device | |
| CN106324815A (en) | Zoom lens system and lens | |
| CN104570286B (en) | A kind of miniature fish eye lens and wear display device | |
| CN204807791U (en) | Optical lens | |
| CN204705759U (en) | A kind of lens combination and camera lens | |
| CN105938241A (en) | Zoom lens and photographing apparatus including the same | |
| CN104145200B (en) | Optical system, Optical devices and the method for manufacturing optical system | |
| CN105556369B (en) | Zoom lens and optical device | |
| CN106324796B (en) | A kind of optical lens | |
| CN101515058A (en) | Zoom lens and image pickup apparatus using the same | |
| TW201211615A (en) | Optical imaging lens assembly | |
| CN209356746U (en) | Imaging lens, imaging device and electronic equipment | |
| CN204807794U (en) | Zoom lens system and camera lens | |
| CN101893750B (en) | Fixed focal lens | |
| CN206331171U (en) | A kind of lens combination and tight shot | |
| CN209674093U (en) | A kind of optical system for monitoring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |