CN110018555A - A kind of optical imaging system and photographic device - Google Patents
A kind of optical imaging system and photographic device Download PDFInfo
- Publication number
- CN110018555A CN110018555A CN201910329973.2A CN201910329973A CN110018555A CN 110018555 A CN110018555 A CN 110018555A CN 201910329973 A CN201910329973 A CN 201910329973A CN 110018555 A CN110018555 A CN 110018555A
- Authority
- CN
- China
- Prior art keywords
- lens
- imaging system
- optical imaging
- optical
- image side
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
Abstract
The invention discloses a kind of optical imaging systems, for three-chip type lens arrangement, first lens have negative refracting power, its image side surface is concave surface at dipped beam axis, second lens have positive refracting power, and object side is convex surface at dipped beam axis, and image side surface is convex surface at dipped beam axis, the third lens have negative refracting power, and aperture is set between the first lens and the second lens.This optical imaging system is by reasonably constraining the optics overall length of optical system and the ratio of its focal length, it can be while reducing optical system volume, improve the imaging definition of optical system, allow to intake and arrives details clearly image, therefore it is applied to be loaded in the fingerprint recognition system below electronic equipment screen, fingerprint recognition system intake be can assist in clear image, provide excellent image quality, and system bulk is small.Invention additionally discloses a kind of photographic devices.
Description
Technical field
The present invention relates to optical imaging device technical fields, more particularly to a kind of optical imaging system.The present invention also relates to
And a kind of photographic device.
Background technique
To meet the higher usage experience requirement of user, the consumer electronics such as smart phone, portable computer or tablet device
Product constantly develops to comprehensive screen direction, and this requires the structures for the various mould groups being loaded on screen more to tend to be small-sized
Change, such as the fingerprint recognition system being loaded under optical panel, it is desirable that fingerprint recognition system can while getting a distinct image,
Volume is smaller.
Summary of the invention
In view of this, the present invention provides a kind of optical imaging system, applied to the finger being loaded into below electronic equipment screen
Line identifying system can assist in fingerprint recognition system intake to clear image, provide excellent image quality, and system bulk
It is small.The present invention also provides a kind of photographic devices.
To achieve the above object, the invention provides the following technical scheme:
A kind of optical imaging system sequentially includes that the first lens, aperture, the second lens and third are saturating by object side to image side
Mirror, each lens have towards the object side of object space and towards the image side surface of image space, in which: first lens have negative bend
Power is rolled over, image side surface is concave surface at dipped beam axis, and second lens have positive refracting power, and object side is convex at dipped beam axis
Face, image side surface are convex surface at dipped beam axis, and the third lens have negative refracting power；
And satisfy the following conditional expression: 2 < TTL/f < 9, wherein TTL indicates the first lens object side to imaging surface in light
Distance on axis, f indicate the focal length of the optical imaging system.
Preferably, the object side of the third lens is concave surface at dipped beam axis, and image side surface is convex surface at dipped beam axis.
Preferably, it also satisfies the following conditional expression: 0.4 < L1/L2< 0.8, wherein L1Indicate the aperture to second lens
Distance of the image side surface on optical axis, L2Indicate distance of the aperture to the third lens image side surface on optical axis.
Preferably, also satisfy the following conditional expression: f/ImgH < 0.50, wherein f indicates the focal length of the optical imaging system,
ImgH indicates the maximum image height of the optical imaging system.
Preferably, it also satisfies the following conditional expression: 0.5 < CT1/CT2≤ 1.2, wherein CT1Indicate first lens in optical axis
On thickness, CT2Indicate thickness of second lens on optical axis.
Preferably, it also satisfies the following conditional expression: 0.2 < Yc32/ f < 0.7, wherein Yc32Indicate the third lens image side surface
For the nearest point of inflexion of upper range Imaging face horizontal distance to the vertical range of optical axis, f indicates the focal length of the optical imaging system.
Preferably, also satisfy the following conditional expression: TTL < 3 millimeter, wherein TTL indicates the first lens object side to imaging
Distance of the face on optical axis.
Preferably, it also satisfies the following conditional expression: -1 < SAG32/CT3< 0.5, wherein SAG32Indicate the third lens image side
The intersection point of face and optical axis is to the maximum effective radius position of the third lens image side surface in the horizontal displacement distance of optical axis, CT3
Indicate thickness of the third lens on optical axis.
It preferably, further include being set to flat-panel component of first lens towards object space side.
A kind of photographic device, including electronics photosensitive element and above-described optical imaging system, the photosensitive member of electronics
Part is set to the imaging surface of the optical imaging system.
As shown from the above technical solution, optical imaging system provided by the present invention includes being set gradually by object side to image side
The first lens, aperture, the second lens and the third lens, object space light successively passes through each lens, is imaged onto positioned at the third lens
On the imaging surface of image side.This optical imaging system is three-chip type lens arrangement, total by the optics for reasonably constraining optical system
Long and its focal length ratio, can improve the imaging definition of optical system while reducing optical system volume, can
Details clearly image is arrived in enough intakes.Therefore, optical imaging system of the present invention is applied to be loaded in below electronic equipment screen
Fingerprint recognition system can assist in fingerprint recognition system intake to clear image, provide excellent image quality, and system body
Product is small, can meet the development trend of the comprehensive screen of electronic equipment.
A kind of photographic device provided by the invention, can reach above-mentioned beneficial effect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of schematic diagram for optical imaging system that the embodiment of the present invention 1 provides；
Fig. 2 (a) and Fig. 2 (b) is respectively the astigmatism curve graph of optical imaging system in the embodiment of the present invention 1, distortion curve
Figure；
Fig. 3 is the spherical aberration curve graph of optical imaging system in the embodiment of the present invention 1；
Fig. 4 is a kind of schematic diagram for optical imaging system that the embodiment of the present invention 2 provides；
Fig. 5 (a) and Fig. 5 (b) is respectively the astigmatism curve graph of optical imaging system in the embodiment of the present invention 2, distortion curve
Figure；
Fig. 6 is the spherical aberration curve graph of optical imaging system in the embodiment of the present invention 2；
Fig. 7 is a kind of schematic diagram for optical imaging system that the embodiment of the present invention 3 provides；
Fig. 8 (a) and Fig. 8 (b) is respectively the astigmatism curve graph of optical imaging system in the embodiment of the present invention 3, distortion curve
Figure；
Fig. 9 is the spherical aberration curve graph of optical imaging system in the embodiment of the present invention 3；
Figure 10 is a kind of schematic diagram for optical imaging system that the embodiment of the present invention 4 provides；
Figure 11 (a) and Figure 11 (b) is respectively the astigmatism curve graph of optical imaging system in the embodiment of the present invention 4, distortion song
Line chart；
Figure 12 is the spherical aberration curve graph of optical imaging system in the embodiment of the present invention 4；
Figure 13 is painted YC in the optical imaging system according to the embodiment of the present invention 132And SAG32Schematic diagram.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to protection of the present invention
Range.
The present invention provides a kind of optical imaging system, sequentially includes the first lens, the second lens and by object side to image side
Three lens, each lens have towards the object side of object space and towards the image side surface of image space.It further include one positioned at the third lens
It is set to the optical filter between the third lens and imaging surface towards the imaging surface of image space side and one, which does not influence
The focal length of optical imaging system.This optical imaging system further includes the aperture being set between the first lens and the second lens.
First lens have negative refracting power, and image side surface is concave surface at dipped beam axis, help to expand optical imagery
The field angle of system, to obtain bigger image capturing range.The object side of first lens can be concave surface, the first lens at dipped beam axis
Object side far from optical axis can be convex surface, can effectively suppress the angle of the light incidence Image Sensor of off-axis visual field
Degree, and can further correct aberration.
Second lens have positive refracting power, can correct the aberration that camera lens front end is generated with the lens of negative refracting power,
The refracting power configuration of the second lens can effectively be reinforced, and then shorten the optics total length of imaging system.The object side of second lens
Face is convex surface at dipped beam axis, and image side surface is convex surface at dipped beam axis.
The third lens have negative refracting power, the in this way structure of looking in the distance with the second lens forming " one positive one is negative ", in turn
The optics total length of imaging system can effectively be shortened.
This optical imaging system reasonably constrains the optics overall length of optical system and the ratio of its focal length, meet condition 2 <
TTL/f < 9, wherein TTL indicates distance of the first lens object side to imaging surface on optical axis, and f indicates the coke of optical imaging system
Away from, the imaging definition of optical system can be improved while reducing optical system volume, allow to intake to details it is clear
Image.Therefore, optical imaging system of the present invention is applied to fingerprint recognition system, can assist in fingerprint recognition system and absorbs to clear
Clear image provides excellent image quality, and system bulk is small, can meet comprehensive screen development trend.
Preferably, the object side of the third lens is concave surface at dipped beam axis, and image side surface is convex surface at dipped beam axis,
The astigmatism and higher order aberratons of optical imaging system can be corrected.The object side of the third lens and image side surface be at least provided on one side to
Few point of inflexion.The point of inflexion is set in the object side of the third lens or image side surface, the light that can suppress off-axis visual field is incident
In the angle of Image Sensor, and can further modified off-axis visual field aberration.
Preferably, this optical imaging system also satisfies the following conditional expression: 0.4 < L1/L2< 0.8, wherein L1Indicate the aperture
To distance of the second lens image side surface on optical axis, L2Indicate the aperture to the third lens image side surface on optical axis
Distance.Meeting this condition can make the position of aperture more appropriate, facilitate the field angle for expanding optical imaging system.
Preferably, this optical imaging system also satisfies the following conditional expression: f/ImgH < 0.50, wherein f indicate the optics at
As the focal length of system, ImgH indicates the maximum image height of the optical imaging system.The light of wide-angle can be effectively collected in this way
Line, and optical imaging system is enabled to receive larger range of image in extremely short object distance to reach identification effect.
Preferably, this optical imaging system also satisfies the following conditional expression: 0.5 < CT1/CT2≤ 1.2, wherein CT1Described in expression
Thickness of first lens on optical axis, CT2Indicate thickness of second lens on optical axis.By deploying optical imaging system
The ratio of first lens thickness and the second lens thickness is conducive to eyeglass molding and ensures that product yield is stablized.
Preferably, this optical imaging system also satisfies the following conditional expression: 0.2 < Yc32/ f < 0.7, wherein Yc32Described in expression
Vertical range of the horizontal distance nearest point of inflexion in range Imaging face to optical axis, the f expression optics on the third lens image side surface
The focal length of imaging system.Work as Yc32When/f meets above-mentioned condition, off-axis field rays can be suppressed and be incident on electronics photosensitive element
Angle, to increase the receiving efficiency of electronics photosensitive element.
Preferably, this optical imaging system also satisfies the following conditional expression: TTL < 3 millimeter.By controlling optical imaging system
Optics overall length, help to ensure that the miniaturization of camera lens, make that it is suitable for the fingerprint recognition systems below electronic equipment screen.
Preferably, this optical imaging system also satisfies the following conditional expression: -1 < SAG32/CT3< 0.5, wherein SAG32Indicate institute
The intersection point of the third lens image side surface and optical axis is stated to the maximum effective radius position of the third lens image side surface in the water of optical axis
Flat shift length is (if horizontal displacement is towards image side, SAG32For positive value；If horizontal displacement is towards object side, SAG32For negative value), CT3
Indicate thickness of the third lens on optical axis.By controlling the change in shape at the third lens center and periphery, in favor of light
The micromation of imaging system is learned, while shortening the back focal length of optical imaging system.
It should be noted that refracting power refers to directional light by optical system, deviation can occur for the direction of propagation of light, use
In characterization optical system to the flexion ability of incoming parallel beam.Optical system has positive refracting power, shows the flexion to light
It is convergence property；Optical system has negative refracting power, shows that the flexion of light be diversity.In optical imagery system of the present invention
In system, if the refracting power or focal length of lens do not define its regional location, then it represents that the refracting power or focal length of the lens can be
Refracting power or focal length of the mirror at dipped beam axis.
It arranges for lens each in optical imaging system, in the case where being from the object side to image side from left to right, lens object
Side is that convex surface refers to that section is done at lens object side any point Guo Mianshang, and total surface is in the right of section, radius of curvature
It is positive, on the contrary object side is then concave surface, and radius of curvature is negative.Lens image side surface is that convex surface refers to that lens image side surface crosses face and takes up an official post
Meaning a little does section, and total surface is on the left side of section, and radius of curvature is negative, otherwise image side surface is concave surface, radius of curvature
It is positive.If crossing any point on lens object side or image side surface does section, the existing part on the section left side in surface, and has
Part on the right of section, then there are the points of inflexion on the surface.Lens object side, image side surface dipped beam axis at concave-convex judgement it is still suitable
With above-mentioned.In addition, referring to the region near optical axis at dipped beam axis.In optical imaging system of the present invention, if lens surface is convex
Face and when not defining the convex surface position, then it represents that the convex surface can be located at lens surface dipped beam axis；If lens surface be concave surface and
When not defining the concave surface position, then it represents that the concave surface can be located at lens surface dipped beam axis.
In optical imaging system disclosed by the invention, lens select the material with high transparency and excellent workability
Production is conducive to the production molding of lens, to promote manufacturing yield, and meets the condition for example, selecting plastic production lens
Lower cost for material is easy to obtain, and advantageously reduces production cost.In addition, the object side of each lens and image side surface can be aspherical
(ASP), aspherical to be easy to be fabricated to the shape other than spherical surface, more controlled variable is obtained, to cut down aberration, in turn
The number that reduction lens use, therefore the total length of this pick-up lens can be effectively reduced.In addition, this optical imaging system is any
Two adjacent lens between can all have interval, be conducive to the assembling of lens, to promote manufacturing yield.This optical imaging system
It may also include the flat-panel component for being set to the first lens towards object space side.
Pick-up lens of the present invention is described in detail with specific embodiment below.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.Below with reference to the accompanying drawings and combine implementation
Example is described in detail the application.
[embodiment 1]
Referring to FIG. 1, Fig. 1 shows the structural schematic diagram of the optical imaging system of embodiment 1.As seen from the figure, this implementation
Example optical imaging system includes the flat-panel component set gradually along optical axis by object side to image side, the first lens 11, aperture 10, second
Lens 12 and the third lens 13, each lens have towards the object side of object space and towards the image side surface of image space, each lens
Object side and image side surface are aspherical.First lens 11 have negative refracting power, and are plastic material, and object side is in close
It is concave surface at optical axis, image side surface is concave surface at dipped beam axis.Second lens 12 have positive refracting power, and are plastics material
Matter, object side are convex surface at dipped beam axis, and image side surface is convex surface at dipped beam axis.The third lens 13 have negative flexion
Power, and be plastic material, object side is concave surface at dipped beam axis, and image side surface is convex surface at dipped beam axis.In addition, this optics
Imaging system additionally comprises optical filter 14 and is placed between the third lens 13 and imaging surface 15, and the material of optional optical filter 14 is glass
And do not influence focal length.
The value that the present embodiment optical imaging system meets conditional is as shown in table 5.In addition, please referring to shown in Figure 13, third
The horizontal distance nearest point of inflexion 1321 in range Imaging face arrives the vertical range Yc of optical axis on 13 image side surface of lens32As shown,
The intersection point of 13 image side surface of the third lens and optical axis is to the maximum effective radius position of the third lens image side surface in the horizontal position of optical axis
Move distance SAG32As shown in the figure.
The detailed optical data of embodiment 1 is as shown in table 1-1, and the unit of radius of curvature, thickness and focal length is millimeter, and f is
The focal length of optical imaging system, Fno are f-number, and HFOV is angle of half field-of view, and surface 0-12 is sequentially indicated by object side to image side
Each surface.Wherein surface 3-9 successively indicates the first lens object side, the first lens image side surface, aperture, the second lens object side
Face, the second lens image side surface, the third lens object side and the third lens image side surface.
Table 1-1
Each lens use aspheric design in this optical imaging system, and aspherical fitting equation is expressed as follows:
Wherein, X indicate aspherical on be Y apart from optical axis point, and be tangential on the section on vertex on aspherical optical axis
Relative distance；R indicates radius of curvature；Y indicates the vertical range of point and optical axis in aspheric curve；K indicates circular cone coefficient；Ai
Indicate the i-th rank asphericity coefficient.
For the asphericity coefficient of each lens of the present embodiment as shown in table 1-2, k indicates the circular cone system in aspheric curve equation
Number, A2-A16 respectively indicate lens surface 2-16 rank asphericity coefficient.The astigmatism curve graph of the present embodiment optical imaging system,
Distortion curve and spherical aberration curve graph are respectively as shown in Fig. 2 (a), Fig. 2 (b) and Fig. 3, wherein astigmatism curve graph and distortion curve
A length of 0.580 μm of figure medium wave, a length of 0.430 μm, 0.505 μm and 0.580 μm of spherical aberration curve graph medium wave.In addition, following implementation
Example table is optical imaging system schematic diagram, astigmatism curve graph, distortion curve and the spherical aberration curve graph of corresponding each embodiment, table
The definition of data is all identical as the definition of the table 1-1 of embodiment 1 and table 1-2 in lattice, is not added repeats below.
Table 1-2
[embodiment 2]
Referring to FIG. 4, Fig. 4 shows the structural schematic diagram of the optical imaging system of embodiment 2.As seen from the figure, this implementation
Example optical imaging system includes the flat-panel component set gradually along optical axis by object side to image side, the first lens 21, aperture 20, second
Lens 22 and the third lens 23, each lens have towards the object side of object space and towards the image side surface of image space, each lens
Object side and image side surface are aspherical.First lens 21 have negative refracting power, and are plastic material, and object side is in close
It is concave surface at optical axis, image side surface is concave surface at dipped beam axis.Second lens 22 have positive refracting power, and are plastics material
Matter, object side are convex surface at dipped beam axis, and image side surface is convex surface at dipped beam axis.The third lens 23 have negative flexion
Power, and be plastic material, object side is concave surface at dipped beam axis, and image side surface is convex surface at dipped beam axis.In addition, this optics
Imaging system also includes that optical filter 24 is placed between the third lens 23 and imaging surface 25, and the material of optional optical filter 24 is glass
Glass and do not influence focal length.
It please cooperate referring to following table 2-1, table 2-2 and table 5.Corresponding astigmatism curve graph, distortion curve and spherical aberration
Curve graph is respectively as shown in Fig. 5 (a), Fig. 5 (b) and Fig. 6.
Table 2-1
Table 2-2
[embodiment 3]
Referring to FIG. 7, Fig. 7 shows the structural schematic diagram of the optical imaging system of embodiment 3.As seen from the figure, this implementation
Example optical imaging system includes the flat-panel component set gradually along optical axis by object side to image side, the first lens 31, aperture 30, second
Lens 32 and the third lens 33, each lens have towards the object side of object space and towards the image side surface of image space, each lens
Object side and image side surface are aspherical.First lens 31 have negative refracting power, and are plastic material, and object side is in close
It is concave surface at optical axis, image side surface is concave surface at dipped beam axis.Second lens 32 have positive refracting power, and are plastics material
Matter, object side are convex surface at dipped beam axis, and image side surface is convex surface at dipped beam axis.The third lens 33 have negative flexion
Power, and be plastic material, object side is concave surface at dipped beam axis, and image side surface is convex surface at dipped beam axis.In addition, this optics
Imaging system also includes that optical filter 34 is placed between the third lens 33 and imaging surface 35, and the material of optional optical filter 34 is glass
Glass and do not influence focal length.
It please cooperate referring to following table 3-1, table 3-2 and table 5.Corresponding astigmatism curve graph, distortion curve and spherical aberration
Curve graph is respectively as shown in Fig. 8 (a), Fig. 8 (b) and Fig. 9.
Table 3-1
Table 3-2
[embodiment 4]
Referring to FIG. 10, Figure 10 shows the structural schematic diagram of the optical imaging system of embodiment 4.As seen from the figure, this reality
Applying an optical imaging system includes the flat-panel component set gradually along optical axis by object side to image side, the first lens 41, aperture 40,
Two lens 42 and the third lens 43, each lens have towards the object side of object space and towards the image side surface of image space, each lens
Object side and image side surface be aspherical.First lens 41 have negative refracting power, and be plastic material, object side in
It is convex surface at dipped beam axis, image side surface is concave surface at dipped beam axis.Second lens 42 have positive refracting power, and are plastics material
Matter, object side are convex surface at dipped beam axis, and image side surface is convex surface at dipped beam axis.The third lens 43 have negative flexion
Power, and be plastic material, object side is concave surface at dipped beam axis, and image side surface is convex surface at dipped beam axis.In addition, this optics
Imaging system also includes that optical filter 44 is placed between the third lens 43 and imaging surface 45, and the material of optional optical filter 44 is glass
Glass and do not influence focal length.
It please cooperate referring to following table 4-1, table 4-2 and table 5.Corresponding astigmatism curve graph, distortion curve and spherical aberration
Curve graph is respectively as shown in Figure 11 (a), Figure 11 (b) and Figure 12.
Table 4-1
Table 4-2
To sum up, embodiment 1 to embodiment 4 meets conditional shown in table 5 respectively.
Table 5
Correspondingly, the embodiment of the present invention also provides a kind of photographic device, the photographic device include electronics photosensitive element and
Above-described optical imaging system, the electronics photosensitive element are set to the imaging surface of the optical imaging system.
The optical imaging system that photographic device provided in this embodiment uses is three-chip type lens arrangement, by reasonably about
The optics overall length of beam optics system and the ratio of its focal length can improve optical system while reducing optical system volume
Imaging definition, allow to intake to details clearly image.This photographic device is applied to be loaded under electronic equipment screen
The fingerprint recognition system of side, can absorb clear image, provide excellent image quality, and system bulk is small, Neng Goufu
Close the development trend of the comprehensive screen of electronic equipment.
A kind of optical imaging system provided by the present invention and photographic device are described in detail above.It answers herein
With a specific example illustrates the principle and implementation of the invention, the explanation of above example is only intended to help to manage
Solve method and its core concept of the invention.It should be pointed out that for those skilled in the art, not departing from
, can be with several improvements and modifications are made to the present invention under the premise of the principle of the invention, these improvement and modification also fall into this hair
In bright scope of protection of the claims.
Claims (10)
1. a kind of optical imaging system, which is characterized in that by object side to image side sequentially include the first lens, aperture, the second lens
And the third lens, each lens have towards the object side of object space and towards the image side surface of image space, in which: first lens
With negative refracting power, image side surface is concave surface at dipped beam axis, and second lens have positive refracting power, and object side is in dipped beam
It is convex surface at axis, image side surface is convex surface at dipped beam axis, and the third lens have negative refracting power；
And satisfy the following conditional expression: 2 < TTL/f < 9, wherein TTL indicates the first lens object side to imaging surface on optical axis
Distance, f indicates the focal length of the optical imaging system.
2. optical imaging system according to claim 1, which is characterized in that the object side of the third lens is in dipped beam axis
Place is concave surface, and image side surface is convex surface at dipped beam axis.
3. optical imaging system according to claim 1, which is characterized in that also satisfy the following conditional expression: 0.4 < L1/L2<
0.8, wherein L1Indicate distance of the aperture to the second lens image side surface on optical axis, L2Indicate the aperture to described
Distance of the third lens image side surface on optical axis.
4. optical imaging system according to claim 1, which is characterized in that also satisfy the following conditional expression: f/ImgH <
0.50, wherein f indicates that the focal length of the optical imaging system, ImgH indicate the maximum image height of the optical imaging system.
5. optical imaging system according to claim 1, which is characterized in that also satisfy the following conditional expression: 0.5 < CT1/CT2
≤ 1.2, wherein CT1Indicate thickness of first lens on optical axis, CT2Indicate thickness of second lens on optical axis.
6. optical imaging system according to claim 1, which is characterized in that also satisfy the following conditional expression: 0.2 < Yc32/f<
0.7, wherein Yc32Indicate range Imaging face horizontal distance is nearest on the third lens image side surface the point of inflexion to the vertical of optical axis
Distance, f indicate the focal length of the optical imaging system.
7. optical imaging system according to claim 1, which is characterized in that also satisfy the following conditional expression: TTL < 3 millimeter,
Wherein TTL indicates distance of the first lens object side to imaging surface on optical axis.
8. optical imaging system according to claim 1, which is characterized in that also satisfy the following conditional expression: -1 < SAG32/CT3
< 0.5, wherein SAG32Indicate that the intersection point of the third lens image side surface and optical axis is effective to the maximum of the third lens image side surface
Radial location is in the horizontal displacement distance of optical axis, CT3Indicate thickness of the third lens on optical axis.
9. optical imaging system according to claim 1-8, which is characterized in that further include being set to described first
Flat-panel component of the lens towards object space side.
10. a kind of photographic device, which is characterized in that including electronics photosensitive element and the described in any item optics of claim 1-9
Imaging system, the electronics photosensitive element are set to the imaging surface of the optical imaging system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910329973.2A CN110018555B (en) | 2019-04-23 | 2019-04-23 | Optical imaging system and camera device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910329973.2A CN110018555B (en) | 2019-04-23 | 2019-04-23 | Optical imaging system and camera device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110018555A true CN110018555A (en) | 2019-07-16 |
| CN110018555B CN110018555B (en) | 2021-09-10 |
Family
ID=67192238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910329973.2A Active CN110018555B (en) | 2019-04-23 | 2019-04-23 | Optical imaging system and camera device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110018555B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113671664A (en) * | 2020-05-13 | 2021-11-19 | 柯尼卡美能达株式会社 | Imaging optical system, lens unit, and imaging device |
| CN114384673A (en) * | 2022-03-24 | 2022-04-22 | 江西联益光学有限公司 | Wide-angle lens and imaging apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030058549A1 (en) * | 2000-05-30 | 2003-03-27 | Hitoshi Hagimori | Taking lens device |
| JP2005258180A (en) * | 2004-03-12 | 2005-09-22 | Seiko Epson Corp | Wide-angle imaging lens and camera module |
| JP2006201674A (en) * | 2005-01-24 | 2006-08-03 | Seiko Epson Corp | Wide angle imaging lens |
| CN102236150A (en) * | 2010-04-20 | 2011-11-09 | 大立光电股份有限公司 | Image taking optical lens system |
| CN104181676A (en) * | 2013-05-23 | 2014-12-03 | 信泰光学(深圳)有限公司 | Micro lens |
| CN205562931U (en) * | 2016-03-17 | 2016-09-07 | 厦门颉轩光电有限公司 | Wide angle imaging lens system |
-
2019
- 2019-04-23 CN CN201910329973.2A patent/CN110018555B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030058549A1 (en) * | 2000-05-30 | 2003-03-27 | Hitoshi Hagimori | Taking lens device |
| JP2005258180A (en) * | 2004-03-12 | 2005-09-22 | Seiko Epson Corp | Wide-angle imaging lens and camera module |
| JP2006201674A (en) * | 2005-01-24 | 2006-08-03 | Seiko Epson Corp | Wide angle imaging lens |
| CN102236150A (en) * | 2010-04-20 | 2011-11-09 | 大立光电股份有限公司 | Image taking optical lens system |
| CN104181676A (en) * | 2013-05-23 | 2014-12-03 | 信泰光学(深圳)有限公司 | Micro lens |
| CN205562931U (en) * | 2016-03-17 | 2016-09-07 | 厦门颉轩光电有限公司 | Wide angle imaging lens system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113671664A (en) * | 2020-05-13 | 2021-11-19 | 柯尼卡美能达株式会社 | Imaging optical system, lens unit, and imaging device |
| CN113671664B (en) * | 2020-05-13 | 2023-01-13 | 柯尼卡美能达株式会社 | Imaging optical system, lens unit, and imaging device |
| CN114384673A (en) * | 2022-03-24 | 2022-04-22 | 江西联益光学有限公司 | Wide-angle lens and imaging apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110018555B (en) | 2021-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107402431B (en) | Image capturing lens, image capturing device and electronic device | |
| CN106886081B (en) | Image capturing optical lens assembly, image capturing device and electronic device | |
| CN102608729B (en) | Optical lens group for photography | |
| CN109765679A (en) | Optical imaging lens and electronic equipment | |
| CN109270666B (en) | Optical imaging lens and electronic equipment | |
| CN109375342A (en) | Image capturing lens system and image capturing device | |
| CN105372792A (en) | Image capturing optical lens assembly, image capturing device and electronic device | |
| CN109061838A (en) | A kind of optical imaging lens and electronic equipment | |
| CN107462979A (en) | Image capturing optical lens assembly, image capturing device and electronic device | |
| CN103576285A (en) | Optical image capturing lens assembly | |
| CN202306100U (en) | Imaging apparatus | |
| CN103913815A (en) | Optical imaging lens | |
| CN104155742A (en) | Optical image pickup system | |
| CN109375351A (en) | A kind of imaging lens system group and electronic equipment | |
| CN109270665B (en) | Optical imaging lens and electronic device | |
| CN109765678A (en) | A kind of pick-up lens and electronic equipment | |
| CN106199931A (en) | Imaging lens systems, image-taking device and electronic installation | |
| CN110187473B (en) | Five-piece type wide-angle lens and electronic equipment | |
| CN103969804A (en) | Moving focusing optical system | |
| CN109100855A (en) | A kind of optical imaging lens group and electronic equipment | |
| CN110187483A (en) | A kind of wide-angle lens and electronic equipment | |
| CN110488469A (en) | A kind of optical lens and electronic equipment | |
| CN107783259A (en) | Optical imaging lens and camera module | |
| CN110018555A (en) | A kind of optical imaging system and photographic device | |
| CN105511056B (en) | A kind of optical lens and camera device |
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 |