CN108037578B - Camera-lens system - Google Patents
Camera-lens system Download PDFInfo
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- CN108037578B CN108037578B CN201810024180.5A CN201810024180A CN108037578B CN 108037578 B CN108037578 B CN 108037578B CN 201810024180 A CN201810024180 A CN 201810024180A CN 108037578 B CN108037578 B CN 108037578B
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- 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
This application discloses a kind of camera-lens systems, the camera-lens system may include lens barrel, the lens barrel, which has, to be flanked receipts from object and transmits the first part of incident light and the second part for light to be emitted to image side, wherein, the first lens are provided in first part, second part is provided with the lens group at least three lens perpendicular to first part, and in second part, and the radial width D of first part is less than 0.5mm；And the length that first part extends outside second part is H, and meets 0.8mm < H < 2.0mm.According to the camera-lens system of the application, there is miniaturization, the characteristic suitable for portable electronic product.
Description
Technical field
This application involves a kind of camera-lens systems, more particularly, to a kind of imaging lens system including periscope type lens
System.
Background technique
In recent years, portable electronic product is quickly grown, such as mobile phone, tablet computer have been flooded with people's lives, is fitted
Pick-up lens on portable electronic product also flourishes therewith.With the progress of science and technology, market is to portable
The aesthetic appearance requirement of electronic product is higher and higher, and corresponding pick-up lens also needs to meet its requirement, how to promote large-size screen monitors accounting
At the direction of main effort.
Therefore, the application proposes that one kind is applicable to portable electronic product, and what it is with large-size screen monitors accounting includes periscopic mirror
The camera-lens system of head.
Summary of the invention
Technical solution provided by the present application at least has been partially solved techniques discussed above problem.
According to the one aspect of the application, such a camera-lens system is provided, which may include
Lens barrel, which, which can have, flanks receipts from object and transmits the first part of incident light and for light to be emitted to the second of image side
Part, wherein may be provided with the first lens in first part, second part is set perpendicular to first part, and in second part
It is equipped with the lens group at least three lens, the radial width D of first part is smaller than 0.5mm；And first part is from
The length that two portion of epi go out is H, and meets 0.8mm < H < 2.0mm.
In one embodiment, it is provided with reflecting element at the position that first part and second part intersect, to make
It obtains from the received incident light of first part and is transmitted to second part.
In one embodiment, the first lens have negative power.
In one embodiment, the lens at least three subsequent lens near image side have negative power.
In one embodiment, the lens near reflecting element at least three subsequent lens, that is, second thoroughly
Mirror has positive light coke, meets between effective focal length value f2 and the effective focal length value f of camera-lens system: 0 < f/f2 < 1.
In one embodiment, can expire between the abbe number V1 of the first lens and the abbe number V2 of the second lens
Foot: | V1-V2 | < 15.
In one embodiment, effective coke of the effective focal length value f of camera-lens system and the lens near image side
Away from can meet between value fi: -1.0 < f/fi < -0.5.
In one embodiment, the effective focal length value f1 of the effective focal length value f of camera-lens system and the first lens it
Between can meet: -1.0 < f/f1 < 0.
According to further aspect of the application, such a camera-lens system is additionally provided, which can
Including lens barrel, which, which can have, flanks receipts from object and transmits the first part of incident light and for light to be emitted to image side
Second part, wherein may be provided with the first lens in first part, the radial width D of first part is less than 0.5mm；Second
Divide and is provided with the lens group at least three lens perpendicular to first part, and in second part；Wherein, after at least three
Lens in continuous lens near image side can have negative power.
In one embodiment, the first lens can have negative power.
In one embodiment, the length that first part extends outside second part be H, and meet 0.8mm < H <
2.0mm。
In one embodiment, it is provided with reflecting element at the position that first part and second part intersect, to make
It obtains from the received incident light of first part and is transmitted to second part.
In one embodiment, the lens near reflecting element at least three subsequent lens, that is, second thoroughly
Mirror can have positive light coke, meet between effective focal length value f2 and the effective focal length value f of camera-lens system: 0 < f/f2 < 1.
In one embodiment, can expire between the abbe number V1 of the first lens and the abbe number V2 of the second lens
Foot: | V1-V2 | < 15.
In one embodiment, effective coke of the effective focal length value f of camera-lens system and the lens near image side
Away from can meet between value fi: -1.0 < f/fi < -0.5.
In one embodiment, the effective focal length value f1 of the effective focal length value f of camera-lens system and the first lens it
Between can meet: -1.0 < f/f1 < 0.
Camera-lens system through the above configuration can have miniaturization, small color difference, small aberration, be suitable for large-size screen monitors accounting
At least one beneficial effect such as portable electronic product.
Detailed description of the invention
By referring to detailed description made by the following drawings, the above and further advantage of presently filed embodiment will become
It obtains it is clear that attached drawing is intended to show that the illustrative embodiments of the application rather than is limited.In the accompanying drawings:
Fig. 1 is the structural schematic diagram for showing the camera-lens system according to the application；
Fig. 2 is the structural schematic diagram of the lens group in the camera-lens system shown according to the embodiment of the present application 1；
Fig. 3 A to Fig. 3 D respectively illustrates chromatic curve on the axis of the camera-lens system of embodiment 1, astigmatism curve, distortion
Curve and ratio chromatism, curve；
Fig. 4 is the structural schematic diagram of the lens group in the camera-lens system shown according to the embodiment of the present application 2；
Fig. 5 A to Fig. 5 D respectively illustrates chromatic curve on the axis of the camera-lens system of embodiment 2, astigmatism curve, distortion
Curve and ratio chromatism, curve；
Fig. 6 is the structural schematic diagram of the lens group in the camera-lens system shown according to the embodiment of the present application 3；
Fig. 7 A to Fig. 7 D respectively illustrates chromatic curve on the axis of the camera-lens system of embodiment 3, astigmatism curve, distortion
Curve and ratio chromatism, curve；
Fig. 8 is the structural schematic diagram of the lens group in the camera-lens system shown according to the embodiment of the present application 4；And
Fig. 9 A to Fig. 9 D respectively illustrates chromatic curve on the axis of the camera-lens system of embodiment 4, astigmatism curve, distortion
Curve and ratio chromatism, curve
Specific embodiment
Various aspects of the reference attached drawing to the application are made more detailed description by the application in order to better understand.It answers
Understand, the only description to the illustrative embodiments of the application is described in detail in these, rather than limits the application in any way
Range.In the specification, the identical element of identical reference numbers.Stating "and/or" includes associated institute
Any and all combinations of one or more of list of items.
It should be noted that in the present specification, the first, second equal statement is only used for a feature and another feature differentiation
It comes, without indicating any restrictions to feature.Therefore, discussed below without departing substantially from teachings of the present application
First lens are also known as the second lens.
In the accompanying drawings, for ease of description, thickness, the size and shape of lens are slightly exaggerated.Specifically, attached drawing
Shown in spherical surface or aspherical shape be illustrated by way of example.That is, spherical surface or aspherical shape are not limited to attached drawing
Shown in spherical surface or aspherical shape.Attached drawing is merely illustrative and and non-critical drawn to scale.
It will also be appreciated that term " comprising ", " including ", " having ", "comprising" and/or " including ", when in this theory
In bright book use when indicate exist stated feature, entirety, step, operations, elements, and/or components, but do not exclude the presence of or
It is attached with one or more of the other feature, entirety, step, operation, component, assembly unit and/or their combination.In addition, ought be such as
When the statement of at least one of " ... " appears in after the list of listed feature, entire listed feature is modified, rather than is modified
Individual component in list.In addition, when describing presently filed embodiment, use " can with " indicate " one of the application or
Multiple embodiments ".Also, term " illustrative " is intended to refer to example or illustration.
As it is used in the present context, term " substantially ", " about " and similar term are used as the approximate term of table, and
Be not used as the term of table degree, and be intended to illustrate by by those skilled in the art will appreciate that, measured value or calculated value
In inherent variability.
Unless otherwise defined, otherwise all terms (including technical terms and scientific words) used herein all have with
The application one skilled in the art's is generally understood identical meaning.It will also be appreciated that term (such as in everyday words
Term defined in allusion quotation) it should be interpreted as having and their consistent meanings of meaning in the context of the relevant technologies, and
It will not be explained with idealization or excessively formal sense, unless clear herein so limit.
In addition, near axis area refers to the region of optical axis (that is, symmetry axis of the center line of light beam or the optical system) nearby.
If lens surface is convex surface and does not define the convex surface position, then it represents that the lens surface is convex surface near axis area is less than；If
When lens surface is concave surface and does not define the concave surface position, then it represents that the lens surface is concave surface near axis area is less than.At this
Wen Zhong is known as object side near the surface of object in each lens, is known as picture near the surface of imaging surface in each lens
Side.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
The application is further described below in conjunction with specific embodiment.
Camera-lens system according to the application illustrative embodiments includes lens barrel, which, which can have from object, flanks receipts
And transmit the first part of incident light and the second part for light to be emitted to image side.Wherein, settable in first part
There are the first lens, second part is provided with the lens at least three lens perpendicular to first part, and in second part
Group.The end of first part has small size, for example, end radial width D is smaller than 0.5mm；And first part is from second
The length that portion of epi goes out is H, and meets 0.8mm < H < 2.0mm.Meet the camera-lens system of above-mentioned condition, it is ensured that mirror
The miniaturization of head, and the height dimension of lens barrel becomes smaller, and is more applicable for the portable electronic product of large-size screen monitors accounting (for example, hand
Machine), and can realize camera function of clearly taking pictures.
The first lens in camera-lens system are arranged in object side, i.e., in the first part of lens barrel.In first part and
It is provided with reflecting element at the position that second part intersects, so that being transmitted to second from the received incident light of first part
Point.Lens group setting at least three lens is in the second portion.Light is incident on the first lens from object side, is then passed through again
Reflecting element reflection, later successively by having the lens group of at least three lens to reach image side.
In the exemplary embodiment, the first lens can have negative power.Near picture at least one subsequent lens
The lens of side can have negative power.Such setting is conducive to increase visual field, balances the light focus of entire camera-lens system
Degree, so that edge location dimension is big.In the exemplary embodiment, at least three subsequent lens near reflecting element
Lens (that is, second lens) can have positive light coke.Positive negative power by reasonably controlling each lens is distributed, can be effective
The low order aberration of ground balance control system, so that camera-lens system obtains preferably image quality.
In the exemplary embodiment, the effective focal length value f2 of the effective focal length value f of camera-lens system and the second lens
Between can meet: 0 < f/f2 < 1, more specifically, can further meet 0.47≤f/f2≤0.72.Pass through rationally dividing for focal power
Match, can be conducive to correct aberration, guarantee the miniaturization of camera lens.
In the exemplary embodiment, can expire between the abbe number V1 of the first lens and the abbe number V2 of the second lens
Foot: | V1-V2 | < 15, more specifically, can further meet | and V1-V2 |≤12.It, can by the mutual cooperation between different materials
Be conducive to correct camera lens color difference, improve image quality.
In the exemplary embodiment, the effective focal length value f of camera-lens system and the lens near image side is effective
It can meet between focal length value fi: -1.0 < f/fi < -0.5, more specifically, can further meet -0.80≤f/fi≤- 0.67.It is logical
Such setting is crossed, the aberrations such as astigmatism, the distortion of camera-lens system can be effectively corrected, while being conducive to the key light of matching chip
Line angle degree.
In the exemplary embodiment, the effective focal length value f1 of the effective focal length value f of camera-lens system and the first lens
Between can meet: -1.0 < f/f1 < 0, more specifically, can further meet -0.73≤f/f1≤- 0.59.Setting in this way
It sets, it is ensured that the first lens and reflecting element have good location feature, while having good imaging effect and processing special
Property.
In the exemplary embodiment, camera-lens system is also provided with the aperture STO for limiting light beam, adjust into
Light quantity improves image quality.
By each power of lens of reasonable distribution and face type, using suitable lens material, it can effectively ensure that camera shooting is saturating
The miniaturization of mirror system simultaneously improves image quality, produces and processes and is applicable to so that camera-lens system is more advantageous to
Portable electronic product.
In presently filed embodiment, at least one of mirror surface of each lens is aspherical mirror.Non-spherical lens
The characteristics of be: curvature is consecutive variations from lens centre to periphery.With the spherical surface for having constant curvature from lens centre to periphery
Lens are different, and non-spherical lens has more preferably radius of curvature characteristic, and there is improvement to distort aberration and improve the excellent of astigmatic image error
Point enables to the visual field to become much larger and true.After non-spherical lens, it can eliminate and go out when imaging as much as possible
Existing aberration, so as to improve image quality.In addition, the use of non-spherical lens can also efficiently reduce the lens in optical system
Number.
However, it will be understood by those of skill in the art that without departing from this application claims technical solution the case where
Under, the lens numbers for constituting camera lens can be changed, to obtain each result and advantage described in this specification.
The specific embodiment for being applicable to the camera-lens system of above embodiment is further described with reference to the accompanying drawings.
Embodiment 1
Referring to Fig. 1 to Fig. 3 D description according to the camera-lens system of the embodiment of the present application 1.
Fig. 1 shows the structural schematic diagram of the camera-lens system according to the application.As shown in Figure 1, camera-lens system
Lens barrel including end small size.The lens barrel, which can have, to be flanked receipts from object and transmits the first part A1 of incident light and be used to incite somebody to action
Light is emitted to the second part A2 of image side.Wherein, the first lens be may be provided in first part A1, second part A2 is perpendicular to
A part of A1, and the lens group at least three lens is provided in second part A2.
As shown in Figure 1, lens barrel is general cylindrical shape structure, the left part where the first part A1 of lens barrel is higher than second
Divide the right part where A2, the length of lens barrel is L1, and lens barrel height (that is, maximum height) is H2.End where first part A1
Portion has small size, for example, end radial width D is smaller than 0.5mm；And first part A1 is extended outside second part A2
Length is H, and meets 0.8mm < H < 2.0mm.In addition, the camera lens overall length of camera-lens system is L2, camera lens overall length L2 can be by
Optical tube length L1 is added to obtain with distance on the axis at the right part center of lens barrel to the imaging surface of image side.
Fig. 2 shows the structural schematic diagrams according to lens group in the camera-lens system of the embodiment of the present application 1.Such as Fig. 2
Shown, which includes from object side to the first lens E1, reflecting element P, the second lens E2, third at image side sequential
Lens E3, the 4th lens E4 and the 5th lens E5.Wherein, the first lens E1 is arranged in first part A1；Reflecting element P setting
At the position that first part A1 intersects with second part A2；Second lens E2 to the 5th lens E5 is arranged in second part A2
In.The optical axis of first lens E1 is vertical with the optical axis of the second lens E2 to the 5th lens E5.Wherein, the first lens E1 has object side
Face S1 and image side surface S2；Second lens E2 has object side S3 and image side surface S4；The third lens E3 has object side S5 and image side
Face S6；4th lens E4 has object side S7 and image side surface S8；And the 5th lens E5 have object side S9 and image side surface S10.
Wherein, reflecting element P setting is between the first lens E1 and the second lens E2 or adjacent with the first lens E1 and the second lens E2
Ground setting.The reflecting element P being set as described above will be reflected into the second lens E2 from the light of the first lens E1 incidence.
In this embodiment, the first lens E1 has negative power, and object side S1 is concave surface, and image side surface S2 is concave surface；
Second lens E2 has positive light coke, and object side S3 is convex surface, and image side surface S4 is convex surface；The third lens E3 has negative light focus
Degree, object side S5 are convex surface, and image side surface S6 is concave surface；4th lens E4 has positive light coke, and object side S7 is convex surface, as
Side S8 is convex surface；And the 5th lens E5 have negative power, object side S9 be convex surface, image side surface S10 be concave surface.
It further include for limiting light beam, setting in reflecting member P and second in the camera-lens system of the present embodiment
Aperture STO between lens E2.Camera-lens system according to embodiment 1 may include having object side S11 and image side surface S12
Optical filter E6, optical filter E6 can be used for correcting color error ratio.Light from object sequentially pass through each surface S1 to S12 and finally at
As on imaging surface S13.
Table 1 shows each lens of the camera-lens system of embodiment 1 and/or the surface type of reflecting element, curvature half
Diameter, thickness, material and circular cone coefficient.
Table 1
The present embodiment uses five lens as an example, passing through the focal length of each eyeglass of reasonable distribution and face type and selecting to close
Suitable material, it is ensured that the miniaturization of imaging lens system camera lens；All kinds of aberrations are corrected simultaneously, improve resolution and the imaging of camera lens
Quality.Each aspherical face type x is limited by following formula:
Wherein, x be it is aspherical along optical axis direction when being highly the position of h, away from aspheric vertex of surface apart from rise；C is
Aspherical paraxial curvature, c=1/R (that is, inverse that paraxial curvature c is upper 1 mean curvature radius R of table)；K be circular cone coefficient (
It has been provided in upper table 1)；Ai is the correction factor of aspherical i-th-th rank.The following table 2, which is shown, can be used for each mirror surface in embodiment 1
The high-order coefficient A of S1-S104、A6、A8、A10、A12、A14、A16、A18And A20。
Table 2
The following table 3 shows the effective focal length value of the effective focal length value f1 to f5 of each lens of embodiment 1, camera-lens system
The half HFOV at the maximum field of view angle of the camera lens of f and camera-lens system.
Table 3
| Parameter | f1(mm) | f2(mm) | f3(mm) | f4(mm) | f5(mm) | f(mm) | HFOV(°) |
| Numerical value | -5.58 | 5.31 | -15.01 | 2.98 | -4.97 | 3.32 | 35.1 |
In conjunction with upper table 1, table 3, in this embodiment:
Meet f/f2=0.63 between the effective focal length value f of camera-lens system and the effective focal length value f2 of the second lens；
Meet between the abbe number V1 of first lens and the abbe number V2 of the second lens | V1-V2 |=0.200；
The effective focal length value f of camera-lens system and between the effective focal length value f5 of the 5th lens of imaging surface it is full
Sufficient f/f5=-0.67；And
Foot f/f1=-0.59 between the effective focal length value f of camera-lens system and the effective focal length value f1 of the first lens.
Fig. 3 A shows chromatic curve on the axis of the camera-lens system of embodiment 1, indicates the light warp of different wave length
Deviateed by the converging focal point after camera-lens system.Fig. 3 B shows the astigmatism curve of the camera-lens system of embodiment 1, table
Show meridianal image surface bending and sagittal image surface bending.Fig. 3 C shows the distortion curve of the camera-lens system of embodiment 1, indicates
Distortion sizes values in the case of different perspectives.Fig. 3 D shows the ratio chromatism, curve of the camera-lens system of embodiment 1, table
Show light via the deviation of the different image heights after camera-lens system on imaging surface.According to Fig. 3 A to Fig. 3 D it is found that implementing
Camera-lens system given by example 1 can be realized good image quality.
Embodiment 2
The lens group in the camera-lens system according to the embodiment of the present application 2 is described referring to Fig. 4 to Fig. 5 D.In addition to
Lens barrel structure and reality except the size of lens barrel, in the camera-lens system described in the present embodiment 2 and following embodiment
The lens barrel structure applied in example 1 is identical.Other than the parameter of each eyeglass of camera-lens system, such as in addition to the curvature of each eyeglass
Radius, thickness, circular cone coefficient, effective focal length, on axis except spacing, high-order coefficient of each mirror surface etc., the present embodiment 2 and with
Under lens group and lens group described in embodiment 1 in camera-lens system described in each embodiment arragement construction phase
Together.For brevity, the description that clipped is similar to Example 1.
Fig. 4 shows the structural schematic diagram of the lens group in the camera-lens system according to the embodiment of the present application 2.Such as Fig. 4
Shown, which includes from object side to the first lens E1, reflecting element P, the second lens E2, third at image side sequential
Lens E3 and the 4th lens E4.Wherein, the first lens E1 is arranged in first part A1；Reflecting element P is arranged in first part
At the position that A1 intersects with second part A2；Second lens E2 to the 4th lens E4 is arranged in second part A2.First lens
The optical axis of E1 is vertical with the optical axis of the second lens E2 to the 4th lens E4.Wherein, the first lens E1 has object side S1 and image side
Face S2；Second lens E2 has object side S3 and image side surface S4；The third lens E3 has object side S5 and image side surface S6；And the
Four lens E4 have object side S7 and image side surface S8.Wherein, reflecting element P is arranged between the first lens E1 and the second lens E2
Or it is disposed adjacently with the first lens E1 and the second lens E2.The reflecting element P being set as described above will enter from the first lens E1
The light penetrated is reflected into the second lens E2.
In this embodiment, the first lens E1 has negative power, and object side S1 is concave surface, and image side surface S2 is convex surface；
Second lens E2 has positive light coke, and object side S3 is convex surface, and image side surface S4 is convex surface；The third lens E3 has positive light focus
Degree, object side S5 are convex surface, and image side surface S6 is convex surface；And the 4th lens E4 have negative power, object side S7 be it is recessed
Face, image side surface S8 are concave surface.
It further include for limiting light beam, setting in the second lens E2 and the in the camera-lens system of the present embodiment
Aperture STO between three lens E3.Camera-lens system according to embodiment 2 may include with object side S9 and image side surface S10
Optical filter E5, optical filter E5 can be used for correcting color error ratio.Light from object sequentially passes through each surface S1 to S10 and final
It is imaged on imaging surface S11.
The following table 4 shows each lens of the camera-lens system of embodiment 2 and/or surface type, the curvature of reflecting element
Radius, thickness, material and circular cone coefficient.Table 5 shows the high-order coefficient of each aspherical mirror in embodiment 2.Table 6 is shown
The effective focal length value f1 to f4 of each lens of embodiment 2, the effective focal length value f of camera-lens system and camera-lens system
The half HFOV at the maximum field of view angle of camera lens.Wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1
It is fixed.
Table 4
Table 5
Table 6
| Parameter | f1(mm) | f2(mm) | f3(mm) | f4(mm) | f(mm) | HFOV(°) |
| Numerical value | -4.51 | 6.17 | 2.92 | -3.62 | 2.88 | 33.5 |
In conjunction with upper table 4, table 6, in this embodiment:
Meet f/f2=0.47 between the effective focal length value f of camera-lens system and the effective focal length value f2 of the second lens；
Meet between the abbe number V1 of first lens and the abbe number V2 of the second lens | V1-V2 |=0.200；
The effective focal length value f of camera-lens system and between the effective focal length value f4 of the 4th lens of imaging surface it is full
Sufficient f/f4=-0.8；And
Foot f/f1=-0.64 between the effective focal length value f of camera-lens system and the effective focal length value f1 of the first lens.
Fig. 5 A shows chromatic curve on the axis of the camera-lens system of embodiment 2, indicates the light warp of different wave length
Deviateed by the converging focal point after camera-lens system.Fig. 5 B shows the astigmatism curve of the camera-lens system of embodiment 2, table
Show meridianal image surface bending and sagittal image surface bending.Fig. 5 C shows the distortion curve of the camera-lens system of embodiment 2, indicates
Distortion sizes values in the case of different perspectives.Fig. 5 D shows the ratio chromatism, curve of the camera-lens system of embodiment 2, table
Show light via the deviation of the different image heights after camera-lens system on imaging surface.According to Fig. 5 A to Fig. 5 D it is found that implementing
Camera-lens system given by example 2 can be realized good image quality.
Embodiment 3
The lens group in the camera-lens system according to the embodiment of the present application 3 is described referring to Fig. 6 to Fig. 7 D.
Fig. 6 shows the structural schematic diagram of the lens group in the camera-lens system according to the embodiment of the present application 3.Such as Fig. 6
Shown, which includes from object side to the first lens E1, reflecting element P, the second lens E2, third at image side sequential
Lens E3 and the 4th lens E4.Wherein, the first lens E1 is arranged in first part A1；Reflecting element P is arranged in first part
At the position that A1 intersects with second part A2；Second lens E2 to the 4th lens E4 is arranged in second part A2.First lens
The optical axis of E1 is vertical with the optical axis of the second lens E2 to the 4th lens E4.Wherein, the first lens E1 has object side S1 and image side
Face S2；Second lens E2 has object side S3 and image side surface S4；The third lens E3 has object side S5 and image side surface S6；And the
Four lens E4 have object side S7 and image side surface S8.Wherein, reflecting element P is arranged between the first lens E1 and the second lens E2
Or it is disposed adjacently with the first lens E1 and the second lens E2.The reflecting element P being set as described above will enter from the first lens E1
The light penetrated is reflected into the second lens E2.
In this embodiment, the first lens E1 has negative power, and object side S1 is concave surface, and image side surface S2 is concave surface；
Second lens E2 has positive light coke, and object side S3 is convex surface, and image side surface S4 is convex surface；The third lens E3 has positive light focus
Degree, object side S5 are convex surface, and image side surface S6 is convex surface；And the 4th lens E4 have negative power, object side S7 be it is convex
Face, image side surface S8 are concave surface.
It further include for limiting light beam, setting in reflecting member P and second in the camera-lens system of the present embodiment
Aperture STO between lens E2.Camera-lens system according to embodiment 3 may include having object side S9 and image side surface S10
Optical filter E5, optical filter E5 can be used for correcting color error ratio.Light from object sequentially pass through each surface S1 to S10 and finally at
As on imaging surface S11.
The following table 7 shows each lens of the camera-lens system of embodiment 3 and/or surface type, the curvature of reflecting element
Radius, thickness, material and circular cone coefficient.Table 8 shows the high-order coefficient of each aspherical mirror in embodiment 3.Table 9 is shown
The effective focal length value f1 to f4 of each lens of embodiment 3, the effective focal length value f of camera-lens system and camera-lens system
The half HFOV at the maximum field of view angle of camera lens.Wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1
It is fixed.
Table 7
Table 8
Table 9
In conjunction with upper table 7, table 9, in this embodiment:
Meet f/f2=0.72 between the effective focal length value f of camera-lens system and the effective focal length value f2 of the second lens；
Meet between the abbe number V1 of first lens and the abbe number V2 of the second lens | V1-V2 |=0；
The effective focal length value f of camera-lens system and between the effective focal length value f4 of the 4th lens of imaging surface it is full
Sufficient f/f4=-0.74；And
Foot f/f1=-0.73 between the effective focal length value f of camera-lens system and the effective focal length value f1 of the first lens.
Fig. 7 A shows chromatic curve on the axis of the camera-lens system of embodiment 3, indicates the light warp of different wave length
Deviateed by the converging focal point after camera-lens system.Fig. 7 B shows the astigmatism curve of the camera-lens system of embodiment 3, table
Show meridianal image surface bending and sagittal image surface bending.Fig. 7 C shows the distortion curve of the camera-lens system of embodiment 3, indicates
Distortion sizes values in the case of different perspectives.Fig. 7 D shows the ratio chromatism, curve of the camera-lens system of embodiment 3, table
Show light via the deviation of the different image heights after camera-lens system on imaging surface.According to Fig. 7 A to Fig. 7 D it is found that implementing
Camera-lens system given by example 3 can be realized good image quality.
Embodiment 4
The lens group in the camera-lens system according to the embodiment of the present application 4 is described referring to Fig. 8 to Fig. 9 D.
Fig. 8 shows the structural schematic diagram of the lens group in the camera-lens system according to the embodiment of the present application 4.Such as Fig. 8
Shown, which includes from object side to the first lens E1, reflecting element P, the second lens E2, third at image side sequential
Lens E3 and the 4th lens E4.Wherein, the first lens E1 is arranged in first part A1；Reflecting element P is arranged in first part
At the position that A1 intersects with second part A2；Second lens E2 to the 4th lens E4 is arranged in second part A2.First lens
The optical axis of E1 is vertical with the optical axis of the second lens E2 to the 4th lens E4.Wherein, the first lens E1 has object side S1 and image side
Face S2；Second lens E2 has object side S3 and image side surface S4；The third lens E3 has object side S5 and image side surface S6；And the
Four lens E4 have object side S7 and image side surface S8.Wherein, reflecting element P is arranged between the first lens E1 and the second lens E2
Or it is disposed adjacently with the first lens E1 and the second lens E2.The reflecting element P being set as described above will enter from the first lens E1
The light penetrated is reflected into the second lens E2.
In this embodiment, the first lens E1 has negative power, and object side S1 is concave surface, and image side surface S2 is concave surface；
Second lens E2 has positive light coke, and object side S3 is convex surface, and image side surface S4 is convex surface；The third lens E3 has positive light focus
Degree, object side S5 are convex surface, and image side surface S6 is convex surface；And the 4th lens E4 have negative power, object side S7 be it is recessed
Face, image side surface S8 are convex surface.
It further include for limiting light beam, setting in the second lens E2 and the in the camera-lens system of the present embodiment
Aperture STO between three lens E3.Camera-lens system according to embodiment 4 may include with object side S9 and image side surface S10
Optical filter E5, optical filter E5 can be used for correcting color error ratio.Light from object sequentially passes through each surface S1 to S10 and final
It is imaged on imaging surface S11.
The following table 10 shows each lens of the camera-lens system of embodiment 4 and/or surface type, the curvature of reflecting element
Radius, thickness, material and circular cone coefficient.Table 11 shows the high-order coefficient of each aspherical mirror in embodiment 4.Table 12 is shown
The effective focal length value f1 to f4 of each lens of embodiment 4, the effective focal length value f of camera-lens system and camera-lens system
Camera lens maximum field of view angle half HFOV.Wherein, each aspherical face type can be by the formula (1) that provides in above-described embodiment 1
It limits.
Table 10
Table 11
Table 12
| Parameter | f1(mm) | f2(mm) | f3(mm) | f4(mm) | f(mm) | HFOV(°) |
| Numerical value | -3.92 | 5.75 | 2.71 | -3.77 | 2.81 | 34.0 |
In conjunction with upper table 10, table 12, in this embodiment:
Meet f/f2=0.49 between the effective focal length value f of camera-lens system and the effective focal length value f2 of the second lens；
Meet between the abbe number V1 of first lens and the abbe number V2 of the second lens | V1-V2 |=12；
The effective focal length value f of camera-lens system and between the effective focal length value f4 of the 4th lens of imaging surface it is full
Sufficient f/f4=-0.75；And
Foot f/f1=-0.72 between the effective focal length value f of camera-lens system and the effective focal length value f1 of the first lens.
Fig. 9 A shows chromatic curve on the axis of the camera-lens system of embodiment 4, indicates the light warp of different wave length
Deviateed by the converging focal point after camera-lens system.Fig. 9 B shows the astigmatism curve of the camera-lens system of embodiment 4, table
Show meridianal image surface bending and sagittal image surface bending.Fig. 9 C shows the distortion curve of the camera-lens system of embodiment 4, indicates
Distortion sizes values in the case of different perspectives.Fig. 9 D shows the ratio chromatism, curve of the camera-lens system of embodiment 4, table
Show light via the deviation of the different image heights after camera-lens system on imaging surface.According to Fig. 9 A to Fig. 9 D it is found that implementing
Camera-lens system given by example 4 can be realized good image quality.
To sum up, embodiment 1 to embodiment 4 meets relationship shown in following table 13 respectively.
Table 13
| Conditional/embodiment | 1 | 2 | 3 | 4 |
| f/fi | -0.67 | -0.80 | -0.74 | -0.75 |
| f/f1 | -0.59 | -0.64 | -0.73 | -0.72 |
| f/f2 | 0.63 | 0.47 | 0.72 | 0.49 |
| |V1-V2| | 0.20 | 0.20 | 0.00 | 12.00 |
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art
Member is it should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
Any combination and the other technical solutions formed.Such as features described above has similar function with (but being not limited to) disclosed herein
Can technical characteristic replaced mutually and the technical solution that is formed.
Claims (16)
1. camera-lens system characterized by comprising
Lens barrel, the lens barrel have the first part for flanking receipts from object and transmitting incident light, and for light to be emitted to image side
Second part,
Wherein, the first lens are provided in the first part, the second part is and described perpendicular to the first part
The lens group at least three lens is provided in second part,
The radial width D of the first part is less than 0.5mm；And
The length that the first part extends outside the second part is H, and meets 0.8mm < H < 2.0mm,
Wherein, at least one of mirror surface in each of first lens and the lens group at least three lens
For aspherical mirror.
2. camera-lens system according to claim 1, which is characterized in that the first part and the second part are handed over
It is provided with reflecting element at the position of fork, so that being transmitted to the second part from the received incident light of the first part.
3. camera-lens system according to claim 1, which is characterized in that first lens have negative power.
4. camera-lens system according to claim 1, which is characterized in that near image side at least three lens
Lens have negative power.
5. camera-lens system according to claim 2, which is characterized in that at least three lens near institute
State the lens of reflecting element, that is, the second lens have positive light coke, effective focal length value f2 and the camera-lens system
Meet between effective focal length value f: 0 < f/f2 < 1.
6. camera-lens system according to claim 5, which is characterized in that the abbe number V1 of first lens and institute
It states and meets between the abbe number V2 of the second lens: | V1-V2 | < 15.
7. camera-lens system according to claim 4, which is characterized in that the effective focal length value of the camera-lens system
Meet between f and the effective focal length value fi of the lens near image side: -1.0 < f/fi < -0.5.
8. camera-lens system described in any one of -7 according to claim 1, which is characterized in that the camera-lens system
Meet between effective focal length value f and the effective focal length value f1 of first lens: -1.0 < f/f1 < 0.
9. camera-lens system characterized by comprising
Lens barrel, the lens barrel have the first part for flanking receipts from object and transmitting incident light, and for light to be emitted to image side
Second part,
Wherein, the first lens are provided in the first part, the radial width D of the first part is less than 0.5mm；
Wherein, the second part is perpendicular to the first part, and the second part is provided with at least three thoroughly
The lens group of mirror；
Wherein, the lens at least three lens near image side have negative power；
Wherein, at least one of mirror surface in each of first lens and the lens group at least three lens
For aspherical mirror.
10. camera-lens system according to claim 9, which is characterized in that first lens have negative power.
11. camera-lens system according to claim 9, which is characterized in that the first part is from the second part
The length extended outside is H, and meets 0.8mm < H < 2.0mm.
12. camera-lens system according to claim 9, which is characterized in that the first part and the second part
It is provided with reflecting element at the position of intersection, so that being transmitted to described second from the received incident light of the first part
Point.
13. camera-lens system according to claim 12, which is characterized in that at least three lens near
The lens of the reflecting element, that is, the second lens have positive light coke, effective focal length value f2 and the camera-lens system
Effective focal length value f between meet: 0 < f/f2 < 1.
14. camera-lens system according to claim 13, which is characterized in that the abbe number V1 of first lens with
Meet between the abbe number V2 of second lens: | V1-V2 | < 15.
15. the camera-lens system according to any one of claim 9-14, which is characterized in that the camera-lens system
Effective focal length value f and the lens near image side effective focal length value fi between meet: -1.0 < f/fi < -0.5.
16. the camera-lens system according to any one of claim 9-14, which is characterized in that the camera-lens system
Effective focal length value f and first lens effective focal length value f1 between meet: -1.0 < f/f1 < 0.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810024180.5A CN108037578B (en) | 2018-01-10 | 2018-01-10 | Camera-lens system |
| PCT/CN2018/110437 WO2019137055A1 (en) | 2018-01-10 | 2018-10-16 | Imaging lens system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810024180.5A CN108037578B (en) | 2018-01-10 | 2018-01-10 | Camera-lens system |
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| CN108037578B true CN108037578B (en) | 2019-10-18 |
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|---|---|---|---|---|
| CN108037578B (en) * | 2018-01-10 | 2019-10-18 | 浙江舜宇光学有限公司 | Camera-lens system |
| TWI688786B (en) | 2019-03-26 | 2020-03-21 | 大立光電股份有限公司 | Optical imaging system, image capturing unit and electronic device |
| CN115053511B (en) * | 2019-12-13 | 2024-04-09 | 宁波舜宇光电信息有限公司 | Periscope type camera module and manufacturing method thereof |
| CN112995445A (en) * | 2019-12-13 | 2021-06-18 | 宁波舜宇光电信息有限公司 | Periscopic camera module |
| CN112995443B (en) * | 2019-12-13 | 2022-09-02 | 宁波舜宇光电信息有限公司 | Periscopic camera module and manufacturing method thereof |
| TWI721888B (en) | 2020-05-20 | 2021-03-11 | 大立光電股份有限公司 | Imaging optical lens assembly, image capturing unit and electronic device |
| TW202204958A (en) * | 2020-07-24 | 2022-02-01 | 大陸商信泰光學（深圳）有限公司 | Image capturing device and zoom control method thereof |
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| CN108037578A (en) | 2018-05-15 |
| WO2019137055A1 (en) | 2019-07-18 |
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