CN208432782U

CN208432782U - Bugeye lens, camera mould group and electronic device

Info

Publication number: CN208432782U
Application number: CN201821113228.1U
Authority: CN
Inventors: 邹海荣; 俞炳泽; 兰宾利
Original assignee: Nanchang OFilm Precision Optical Products Co Ltd
Current assignee: Jiangxi Jingchao Optical Co Ltd
Priority date: 2018-07-13
Filing date: 2018-07-13
Publication date: 2019-01-25
Anticipated expiration: 2028-07-13

Abstract

The utility model discloses a kind of bugeye lens, camera mould group and electronic devices.Bugeye lens successively includes first lens with negative refracting power, the second lens with negative refracting power, the third lens with positive refracting power, the 4th lens with positive refracting power and the 5th lens with refracting power from object side to image side.Bugeye lens meets following relationship: D/2R₂<0.93；Wherein, D is the effective diameter of first lens, R₂For the radius of curvature of the image side surface of first lens.Bugeye lens, camera mould group and the electronic device of the utility model embodiment are by the design of the first lens and the effect of the reasonably combined realization wide-angle of other lenses, and the configuration of the first lens is relatively reasonable, meet manufacture and require, so as to promote yield.

Description

Bugeye lens, camera mould group and electronic device

Technical field

The utility model relates to optical image technology, in particular to a kind of bugeye lens, camera mould group and electronic device.

Background technique

In order to obtain biggish field angle, bugeye lens is often assembled using the conjunction of multiple lens, is produced and processed Difficulty is big, yield is low.

Utility model content

The utility model embodiment provides a kind of bugeye lens, camera mould group and electronic device.The utility model is real The bugeye lens for applying mode successively includes first lens with negative refracting power, with negative refracting power from object side to image side Two lens, the third lens with positive refracting power, the 4th lens with positive refracting power and the 5th lens with refracting power.Institute It states bugeye lens and meets following relationship: D/2R₂<0.93；Wherein, D is the effective diameter of first lens, R₂It is described The radius of curvature of the image side surface of first lens.

The bugeye lens of the utility model embodiment passes through the design of the first lens and rationally taking for other lenses With the effect for realizing wide-angle, and the configuration of the first lens is relatively reasonable, is conducive to produce and process, and meets manufacture and requires, so as to To promote yield.

In some embodiments, first lens are meniscus lens, and the object side of first lens is convex Face, the object side of second lens and image side surface are concave surface, and the image side surface of the third lens is convex surface, and the described 4th thoroughly At least one surface of mirror and the 5th lens is aspherical.

In this way, bugeye lens can be effectively reduced super by the radius of curvature and asphericity coefficient of adjusting lens surface The total length of wide-angle lens, and the use of diversification face type can effectively correct the aberration of bugeye lens, improve imaging Quality.

In some embodiments, the bugeye lens meets following relationship: f/f1 < -0.16；Wherein, f is described The effective focal length of bugeye lens, f1 are the focal length of first lens.

When meeting above-mentioned relation formula, be conducive in the field angle for expanding bugeye lens and the optics for shortening bugeye lens Balance is obtained in total length.

In some embodiments, the bugeye lens further includes diaphragm, and the bugeye lens meets following relationship Formula: SL/TTL > 0.34；Wherein, SL is imaging surface distance on optical axis of the diaphragm to the bugeye lens, and TTL is Distance of the object side of first lens to the imaging surface on optical axis.

When meeting above-mentioned relation formula, the outgoing pupil of the bugeye lens can be made far from imaging surface, therefore light will be with close The mode of vertical incidence is incident on photosensitive element, this is the telecentricity characteristic of image side, and telecentricity characteristic is photosensitive for solid-state electronic The photoperceptivity of element is particularly important, and the photosensitive susceptibility of electronics photosensitive element may make to improve, and reduces bugeye lens and generates The possibility at dark angle.

In some embodiments, the bugeye lens meets following relationship: 1/2H-FOV >=95 degree；Wherein, H- FOV is the field angle of the horizontal direction of the imaging surface along the bugeye lens.

When meeting above-mentioned relation formula, bugeye lens have biggish field angle, with meet mobile phone, camera, on-vehicle lens, The requirements of the electronic products to big field angle such as monitoring camera, medical camera lens.

In some embodiments, the bugeye lens meets following relationship: f/f12 < -0.5；Wherein, f is described The effective focal length of bugeye lens, f12 are the combined focal length of first lens and second lens.

When meeting above-mentioned relation formula, the first lens and the second lens can effectively share the negative refracting power of microscope group, avoid third saturating Mirror, the 4th lens, the 5th lens refracting power configuration it is excessive, with reduce bugeye lens susceptibility, manufacturing tolerance and environment because Influence caused by element.

In some embodiments, the bugeye lens meets following relationship: -1 < f/f3-f/f4 < 1；Wherein, f is The effective focal length of the bugeye lens, f3 are the focal length of the third lens, and f4 is the focal length of the 4th lens.

When meeting above-mentioned relation formula, the refracting power of the third lens and the 4th lens is relatively reasonable, and ultra-wide angle can be effectively controlled Camera lens and corrects aberration for the susceptibility of error.Meanwhile can be too small to avoid the negative refracting power of the third lens, the 4th lens Positive refracting power it is excessive, to prevent from changing the influence for causing thermal expansion and contraction to lens because of environment temperature, it is final guarantee it is super Imaging definition of the wide-angle lens in -40 DEG C to+85 DEG C temperature ranges.

In some embodiments, the bugeye lens meets following relationship: -3 < R₆/R₇<0；Wherein, R₆It is described The radius of curvature of the image side surface of the third lens, R₇For the radius of curvature of the object side of the 4th lens.

When meeting above-mentioned relation formula, be conducive to aberration of the 4th lens correction from the third lens and bugeye lens, and Appropriate refracting power is adjusted, to promote the resolving power of bugeye lens.

In some embodiments, the bugeye lens meets following relationship: CT4/CT5 < 4；Wherein CT4 is described Thickness of 4th lens on optical axis, CT5 are thickness of the 5th lens on optical axis.

When meeting above-mentioned relation formula, the thickness of the 4th lens and the 5th lens is relatively reasonable, can help to bugeye lens Assembling space configuration.

The camera mould group of the utility model embodiment includes bugeye lens described in any of the above-described embodiment and sense The image side of the bugeye lens is arranged in optical element, the photosensitive element.

The electronic device of the utility model embodiment includes camera mould group described in shell and above embodiment, described The installation of camera mould group is on the housing for obtaining image.

The additional aspect and advantage of the utility model embodiment will be set forth in part in the description, partially will be under Become obvious in the description in face, or is recognized by the practice of the utility model.

Detailed description of the invention

The above-mentioned and/or additional aspect and advantage of the utility model can retouch embodiment from conjunction with following accompanying drawings It will be apparent and be readily appreciated that in stating, in which:

Fig. 1 is the structural schematic diagram of the infrared lens of the utility model first embodiment；

Fig. 2 to Fig. 4 is the longitudinal aberration diagram (mm), curvature of field figure (mm) and distortion figure of infrared lens in first embodiment respectively (%)；

Fig. 5 is the structural schematic diagram of the infrared lens of the utility model second embodiment；

Fig. 6 to Fig. 8 is the longitudinal aberration diagram (mm), curvature of field figure (mm) and distortion figure of infrared lens in second embodiment respectively (%)；

Fig. 9 is the structural schematic diagram of the infrared lens of the utility model 3rd embodiment；

Figure 10 to Figure 12 is the longitudinal aberration diagram (mm), curvature of field figure (mm) and distortion of infrared lens in 3rd embodiment respectively Scheme (%)；

Figure 13 is the structural schematic diagram of the infrared lens of the utility model fourth embodiment；

Figure 14 to Figure 16 is the longitudinal aberration diagram (mm), curvature of field figure (mm) and distortion of infrared lens in fourth embodiment respectively Scheme (%)；

Figure 17 is the structural schematic diagram of the infrared lens of the 5th embodiment of the utility model；

Figure 18 to Figure 20 is the longitudinal aberration diagram (mm), curvature of field figure (mm) and distortion of infrared lens in the 5th embodiment respectively Scheme (%)；

Figure 21 is the structural schematic diagram of the infrared lens of the utility model sixth embodiment；

Figure 22 to Figure 24 is the longitudinal aberration diagram (mm), curvature of field figure (mm) and distortion of infrared lens in sixth embodiment respectively Scheme (%)；

Figure 25 is the structural schematic diagram of the infrared lens of the 7th embodiment of the utility model；

Figure 26 to Figure 28 is the longitudinal aberration diagram (mm), curvature of field figure (mm) and distortion of infrared lens in the 7th embodiment respectively Scheme (%)；

Figure 29 is the structural schematic diagram of the infrared lens of the 8th embodiment of the utility model；

Figure 30 to Figure 32 is the longitudinal aberration diagram (mm), curvature of field figure (mm) and distortion of infrared lens in first embodiment respectively Scheme (%)；

Figure 33 is the structural schematic diagram of the camera mould group of the utility model embodiment；

Figure 34 is the structural schematic diagram of the electronic device of the utility model embodiment；With

Figure 35 is the structural schematic diagram of the electronic device of another embodiment of the utility model.

Specific embodiment

The embodiments of the present invention is described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein Same or similar label indicates same or similar element or element with the same or similar functions from beginning to end.Lead to below It crosses the embodiment being described with reference to the drawings to be exemplary, is only used for explaining the utility model, and should not be understood as practical to this Novel limitation.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise " be based on the orientation or positional relationship shown in the drawings, be only for Convenient for description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have specifically Orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicates indicated technology The quantity of feature.Define " first " as a result, the feature of " second " can explicitly or implicitly include it is one or more The feature.The meaning of " plurality " is two or more in the description of the present invention, unless otherwise clearly specific It limits.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected or can mutually communicate；It can be directly connected, it can also be in Between medium be indirectly connected, can be the connection inside two elements or the interaction relationship of two elements.For this field For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.

In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it "lower" may include that the first and second features directly contact, and also may include that the first and second features are not direct contacts but lead to Cross the other characterisation contact between them.Moreover, fisrt feature includes above the second feature " above ", " above " and " above " One feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First is special Sign includes fisrt feature right above second feature and oblique upper under the second feature " below ", " below " and " below ", or only Indicate that first feature horizontal height is less than second feature.

Following disclosure provides many different embodiments or example is used to realize the different structure of the utility model. In order to simplify the disclosure of the utility model, hereinafter the component of specific examples and setting are described.Certainly, they are only Example, and purpose does not lie in limitation the utility model.In addition, the utility model can in different examples repeat reference numerals And/or reference letter, this repetition are for purposes of simplicity and clarity, itself not indicate discussed various embodiments And/or the relationship between setting.In addition, the example of various specific techniques and material that the utility model provides, but this Field those of ordinary skill can be appreciated that the application of other techniques and/or the use of other materials.

Also referring to Fig. 1, Fig. 5, Fig. 9, Figure 13, Figure 17, Figure 21, Figure 25 and Figure 29, the utility model embodiment Bugeye lens 10 successively include from object side to image side the first lens L1 with negative refracting power, second with negative refracting power thoroughly Mirror L2, the third lens L3 with positive refracting power, the 4th lens L4 with positive refracting power and the 5th lens with refracting power L5。

There is first lens L1 object side S1 and image side surface S2, the second lens L2 to have object side S3 and image side surface S4, the There is three lens L3 object side S5 and image side surface S6, the 4th lens L4 to have object side S7 and image side surface S8, the 5th lens L5 tool There is object side S9 and image side surface S10.First lens L1 is meniscus lens, and the object side S1 of the first lens L1 is convex surface, the The object side S3 and image side surface S4 of two lens L2 is concave surface, and the image side surface S5 of the third lens L3 is convex surface.Bugeye lens 10 Meet following relationship: D/2R₂≤0.93；Wherein, D is the effective diameter of the first lens L1, R₂For the image side surface of the first lens L1 The radius of curvature of S2.In other words, D/2R₂Can be any number less than or equal to 0.93, for example, the value can for 0.1, 0.15,0.25,0.3,0.45,0.5,0.55,0.62,0.72,0.84,0.9,0.91,0.92,0.93 etc..Preferably, D/ 2R₂< 0.93, D/2R₂Can be any number less than 0.93, for example, the value can for 0.1,0.15,0.25,0.3,0.45, 0.5,0.55,0.62,0.72,0.84,0.9,0.91,0.92 etc..

When bugeye lens 10 is for when being imaged, subject OBJ to be issued or the light of reflection enters from object side direction Bugeye lens 10, and sequentially pass through the first lens L1, the second lens L2, the third lens L3, the 4th lens L4, the 5th lens L5 And the infrared fileter L6 with object side S11 and image side surface S12, it finally converges on imaging surface S13.In other embodiment party In formula, light continues across the protection glass L7 with object side S14 and image side surface S15 after passing through infrared fileter L6, finally It converges on imaging surface S13.

The bugeye lens 10 of the utility model embodiment passes through the design of the first lens L1 and the conjunction of other lenses The effect of wide-angle is realized in reason collocation, and the configuration of the first lens L1 is relatively reasonable, is met manufacture and is required, good so as to be promoted Rate.

In some embodiments, bugeye lens 10 further includes diaphragm STO.Diaphragm STO can be aperture diaphragm or view Field diaphragm.The utility model embodiment is illustrated so that diaphragm STO is aperture diaphragm as an example.Diaphragm STO can be set in office It anticipates on the surface of one piece of lens, or is arranged before the first lens L1, or be arranged between any two pieces of lens, or setting is the Between five lens L5 and infrared fileter L6.For example, diaphragm STO setting exists in first embodiment into the 8th embodiment Between the third lens L3 and the 4th lens L4.

In some embodiments, bugeye lens 10 meets following relationship: f/f1≤- 0.16；Wherein, f1 first The focal length of lens L1.In other words, f/f1 can be any number less than or equal to -0.16, for example, the value can with -30, - 25, -10, -9, -8, -7, -0.17, -0.16 etc..Preferably, f/f1 < -0.16, in other words, f/f1 can for less than - 0.16 any number, for example, the value can be with -30, -25, -10, -9, -8, -0.25, -0.21, -0.19, -0.17 etc..

When meeting above-mentioned relation formula, is conducive in the field angle for expanding bugeye lens 10 and shortens bugeye lens 10 Balance is obtained in optics total length.

In some embodiments, bugeye lens 10 meets following relationship: SL/TTL >=0.34；Wherein, SL is light For late STO to distance of the imaging surface S13 (i.e. photosensitive element 20) on optical axis of bugeye lens 10, TTL is the first lens L1's Distance of the object side S1 to imaging surface S13 on optical axis.In other words, SL/TTL can be the arbitrary number more than or equal to 0.34 Value, for example, the value can be with 0.34,0.35,0.36,0.37,0.52,0.65,0.7,0.85,0.9,1,2,4,7,10 etc..It is excellent Selection of land, SL/TTL > 0.34, in other words, SL/TTL can be any number greater than 0.34, for example, the value can with 0.35, 0.42,0.43,0.52,0.65,0.7,4,7,10 etc..

When meeting above-mentioned relation formula, the outgoing pupil of the bugeye lens 10 can be made far from imaging surface, therefore light will be to connect The mode of nearly vertical incidence is incident on photosensitive element 20, this is the telecentricity characteristic of image side, and telecentricity characteristic is for solid-state electronic The photoperceptivity of photosensitive element is particularly important, and the photosensitive susceptibility of electronics photosensitive element may make to improve, and reduces bugeye lens 10 generate the possibility at dark angle.

In some embodiments, bugeye lens 10 meets following relationship: 1/2H-FOV >=92.5 degree；Wherein, H- FOV is the field angle of the horizontal direction of the imaging surface along bugeye lens 10.In other words, 1/2H-FOV can be to be greater than or wait In 92.5 degree of any angle, for example, the value can be with 92.5 degree, 93 degree, 93.5 degree, 94 degree, 95 degree, 96 degree, 97 degree, 97.5 Degree, 98 degree, 98.5 degree, 99 degree etc..Preferably, 1/2H-FOV >=95 degree, in other words, 1/2H-FOV can be to be greater than or wait In 95 degree of any angle, for example, the value can be with 95 degree, 96 degree, 97 degree, 97.5 degree, 98 degree, 98.5 degree, 99 degree etc..

When meeting above-mentioned relation formula, bugeye lens 10 has biggish field angle, to meet mobile phone, camera, vehicle-mounted mirror The requirements of the electronic products to big field angle such as head, monitoring camera, medical camera lens.

In some embodiments, bugeye lens 10 meets following relationship: f/f12 < -0.5；Wherein, f12 first The combined focal length of lens L1 and the second lens L2.In other words, f/f12 can be any number less than -0.5, for example, the value It can be with -30, -25, -0.58, -0.56, -0.55, -0.53, -0.51 etc..

When meeting above-mentioned relation formula, the first lens L1 and the second lens L2 can effectively share the negative flexion of bugeye lens 10 Power avoids the third lens L3, the 4th lens L4 and the 5th lens L5 refracting power from configuring excessive, to reduce bugeye lens 10 Influence caused by susceptibility, manufacturing tolerance and environmental factor.

In some embodiments, bugeye lens 10 meets following relationship: -1 < f/f3-f/f4 < 1；Wherein, f is super The effective focal length of wide-angle lens 10, f3 are the focal length of the third lens L3, and f4 is the focal length of the 4th lens L4.In other words, f/f3- F/f4 can any number between section (- 1,1), for example, the value can for -0.98, -0.95, -0.9, -0.8, - 0.6, -0.5, -0.45, -0.4,0.5,0.55,0.6,0.7,0.8,0.9,0.95 etc..

When meeting above-mentioned relation formula, the refracting power of the third lens L3 and the 4th lens L4 are relatively reasonable, can be effectively controlled super Wide-angle lens 10 and corrects aberration for the susceptibility of error.Meanwhile can be too small to avoid the negative refracting power of the third lens L3, The positive refracting power of 4th lens L4 is excessive, thus prevent from changing the influence for causing thermal expansion and contraction to lens because of environment temperature, The final imaging definition for guaranteeing bugeye lens 10 in -40 DEG C to+85 DEG C temperature ranges.

In some embodiments, bugeye lens 10 meets following relationship: -3 < R₆/R₇<0；Wherein, R₆It is saturating for third The radius of curvature of the image side surface S6 of mirror L3, R₇For the radius of curvature of the object side S7 of the 4th lens S4.In other words, R₆/R₇It can be with For any number between section (- 3,0), for example, the value can with -2.8, -2.5, -2.13, -2.03, -2, -1.98, -1.8, - 0.65, -0.5, -0.2, -0.05 etc..

When meeting above-mentioned relation formula, be conducive to picture of the 4th lens L4 amendment from the third lens L3 Yu bugeye lens 10 Difference, and appropriate refracting power is adjusted, to promote the resolving power of bugeye lens 10.

In some embodiments, bugeye lens 10 meets following relationship: CT4/CT5 < 4；Wherein CT4 is the 4th saturating Thickness of the mirror L4 on optical axis, CT5 are thickness of the 5th lens L5 on optical axis.In other words, CT4/CT5 can be for less than 4 Any number, for example, the value can be with 0.1,0.3,0.5,3.5,3.8,3.9 etc..

When meeting above-mentioned relation formula, the thickness of the 4th lens L4 and the 5th lens L5 is relatively reasonable, can help to ultra-wide angle The assembling space of camera lens 10 configures.

In some embodiments, bugeye lens 10 meets following relationship: FNO≤2.25；Wherein, FNO is aperture Number (stop value).In other words, FNO can be any number less than or equal to 2.25, for example, the value can with 0.1,0.3, 0.5,0.8,1,2.15,2.22,2.24,2.25 etc..Preferably, FNO < 2.25, in other words, FNO can be for less than 2.25 Arbitrary value, for example, the value can be with 0.1,0.3,0.5,1.8,2,2.1,2.2,2.24 etc..

In this way, bugeye lens 10 has biggish stop value, light-inletting quantity is larger.

In some embodiments, the material of the first lens L1 is glass, and the second lens L2, the third lens L3, the 4th are thoroughly The material of mirror L4 and the 5th lens L5 are plastics.

By the reasonably combined of the material of the first lens L1 to the 5th lens L5, bugeye lens 10 is effectively eliminating picture While meet high pixel demand, ultrathin may be implemented, and cost is relatively low in difference.

In some embodiments, at least one surface of the 4th lens L4 and the 5th lens L5 is in bugeye lens 10 It is aspherical.For example, in the first embodiment, the object side and image side surface of the 4th lens L4 and the 5th lens L5 are aspheric Face.

In some embodiments, the second lens L2, the third lens L3, the 4th lens L4 and the 5th lens L5 are non- Spherical mirror.Aspherical face type is determined by following formula:Wherein, Z is aspherical any point With the fore-and-aft distance of surface vertices, r is distance of the aspherical any point to optical axis, and c is that vertex curvature (fall by radius of curvature Number), k is the constant of the cone, and Ai is the correction factor of aspherical i-th-th rank.

In this way, bugeye lens 10 can effectively be subtracted by the radius of curvature and asphericity coefficient of each lens surface of adjusting The total length of small bugeye lens 10, and 10 aberration of bugeye lens can be effectively corrected, improve image quality.In addition, more The use of firstization face type can effectively correct the aberration of bugeye lens 10, improve image quality.

First embodiment

Referring to FIG. 1 to FIG. 4, in the bugeye lens 10 of first embodiment, from object side to image side include the first lens L1, Second lens L2, the third lens L3, the 4th lens L4, the 5th lens L5 and infrared fileter L6.

First lens L1 has negative refracting power, and material is glass, and object side S1 is convex surface, and image side surface S2 is concave surface, It and is all spherical surface.Second lens L2 has negative refracting power, and material is plastics, and object side S3 is concave surface, and image side surface S4 is recessed Face, and be all aspherical.The third lens L3 has positive refracting power, and material is plastics, and object side S5 is convex surface at optical axis, It is plane at circumference, image side surface S6 is convex surface, and is all aspherical.4th lens L4 has positive refracting power, and material is modeling Material, object side S7 are convex surface, and it is concave surface at circumference, and be all aspherical that image side surface S8, which is convex surface at optical axis,.5th thoroughly Mirror L5 has positive refracting power, and material is plastics, and object side S9 is concave surface, and image side surface S10 is convex surface, and is all aspherical.

Diaphragm STO is arranged between the third lens L3 and the 4th lens L4.The F-number FNO=of bugeye lens 10 2.25。

Infrared fileter L6 is glass material, is arranged between the 5th lens L5 and imaging surface S13 and does not influence super wide The focal length of angle mirror head 10.

In first embodiment, the effective focal length of bugeye lens 10 is f=0.99, and the F-number of bugeye lens 10 is FNO=2.25, the field angle H-FOV=190 degree of the horizontal direction of the imaging surface S13 of bugeye lens 10.Bugeye lens 10 Meet the following conditions: D/2R₂=0.93；F/f1=-0.17；SL/TTL=0.34；F/f12=-071；F/f3-f/f4= 0.11；R₆/R₇=-0.65；CT4/CT5=0.7.

Bugeye lens 10 meets the condition of following table:

Table 1

Table 2

Second embodiment

Please refer to Fig. 5 to Fig. 8, in the bugeye lens 10 of second embodiment, include from object side to image side the first lens L1, Second lens L2, the third lens L3, the 4th lens L4, the 5th lens L5 and infrared fileter L6.

First lens L1 has negative refracting power, and material is glass, and object side S1 is convex surface, and image side surface S2 is concave surface, It and is all spherical surface.Second lens L2 has negative refracting power, and material is plastics, and object side S3 is concave surface, and image side surface S4 is recessed Face, and be all aspherical.The third lens L3 has positive refracting power, and material is plastics, and object side S5 is concave surface, image side surface S6 It for convex surface, and is all aspherical.4th lens L4 has positive refracting power, and material is plastics, and object side S7 is convex surface, image side Face S8 is convex surface, and is all aspherical.5th lens L5 has negative refracting power, and material is plastics, and object side S9 is concave surface, Image side surface S10 is convex surface, and is all aspherical.

Diaphragm STO is arranged between the third lens L3 and the 4th lens L4.The F-number FNO=2.1 of bugeye lens 10.

Infrared fileter L6 is glass material, is arranged between the 5th lens L5 and imaging surface S13 and does not influence super wide The focal length of angle mirror head 10.Bugeye lens 10 meets the condition of following table:

Table 3

Table 4

Following data can be obtained according to table 3 and table 4:

f(mm)	1	SL/TTL	0.34
				FNO	2.1	f/f12	-0.62
H-FOV (degree)	190	f/f3-f/f4	-0.38
				D/2R₂	0.92	R₆/R₇	-1.61
f/f1	-0.19	CT4/CT5	2.06

Third embodiment

It please refers to Fig. 9 to Figure 12, includes the first lens from object side to image side in the bugeye lens 10 of 3rd embodiment L1, the second lens L2, the third lens L3, the 4th lens L4, the 5th lens L5 and infrared fileter L6.

Diaphragm STO is arranged between the third lens L3 and the 4th lens L4.The F-number FNO=of bugeye lens 10 2.05。

Table 5

Table 6

Following data can be obtained according to table 5 and table 6:

f(mm)	0.98	SL/TTL	0.37
				FNO	2.05	f/f12	-0.67
H-FOV (degree)	190	f/f3-f/f4	-0.4
				D/2R₂	0.92	R₆/R₇	-1.46
f/f1	-0.17	CT4/CT5	1.39

4th embodiment

It please refers to Figure 13 to Figure 16, includes the first lens from object side to image side in the bugeye lens 10 of fourth embodiment L1, the second lens L2, the third lens L3, the 4th lens L4, the 5th lens L5 and infrared fileter L6.

First lens L1 has negative refracting power, and material is glass, and object side S1 is convex surface, and image side surface S2 is concave surface, It and is all spherical surface.Second lens L2 has negative refracting power, and material is plastics, and object side S3 is concave surface, and image side surface S4 is recessed Face, and be all aspherical.The third lens L3 has positive refracting power, and material is plastics, and object side S5 is convex surface, image side surface S6 It for convex surface, and is all aspherical.4th lens L4 has positive refracting power, and material is plastics, and object side S7 is convex surface, image side Face S8 is convex surface, and is all aspherical.5th lens L5 has negative refracting power, and material is plastics, and object side S9 is concave surface, Image side surface S10 is convex surface, and is all aspherical.

Diaphragm STO is arranged between the third lens L3 and the 4th lens L4.The F-number FNO=2.2 of bugeye lens 10.

Table 7

Table 8

Following data can be obtained according to table 7 and table 8:

f(mm)	0.98	SL/TTL	0.37
				FNO	2.2	f/f12	-0.67
H-FOV (degree)	190	f/f3-f/f4	-0.37
				D/2R₂	0.92	R₆/R₇	-2.03
f/f1	-0.16	CT4/CT5	3.25

5th embodiment

It please refers to Figure 17 to Figure 20, includes the first lens from object side to image side in the bugeye lens 10 of the 5th embodiment L1, the second lens L2, the third lens L3, the 4th lens L4, the 5th lens L5 and infrared fileter L6.

Table 9

Table 10

Following data can be obtained according to table 9 and table 10:

f(mm)	0.98	SL/TTL	0.35
				FNO	2.1	f/f12	-0.59
H-FOV (degree)	190	f/f3-f/f4	-0.35
				D/2R₂	0.92	R₆/R₇	-2.13
f/f1	-0.16	CT4/CT5	2.83

Sixth embodiment

It please refers to Figure 21 to Figure 24, includes the first lens from object side to image side in the bugeye lens 10 of sixth embodiment L1, the second lens L2, the third lens L3, the 4th lens L4, the 5th lens L5 and infrared fileter L6.

Table 11

Table 12

Following data can be obtained according to table 11 and table 12:

f(mm)	0.98	SL/TTL	0.39
				FNO	2.1	f/f12	-0.55
H-FOV (degree)	185	f/f3-f/f4	-0.35
				D/2R₂	0.8	R₆/R₇	-1.76
f/f1	-0.17	CT4/CT5	2.48

7th embodiment

It please refers to Figure 25 to Figure 28, includes the first lens from object side to image side in the bugeye lens 10 of the 7th embodiment L1, the second lens L2, the third lens L3, the 4th lens L4, the 5th lens L5 and infrared fileter L6.

First lens L1 has negative refracting power, and material is glass, and object side S1 is convex surface, and image side surface S2 is concave surface, It and is all spherical surface.Second lens L2 has negative refracting power, and material is plastics, and object side S3 is concave surface, and image side surface S4 is recessed Face, and be all aspherical.The third lens L3 has positive refracting power, and material is plastics, and object side S5 is concave surface, image side surface S6 It for convex surface, and is all aspherical.4th lens L4 has positive refracting power, and material is plastics, and object side S7 is convex surface, image side Face S8 is convex surface, and is all aspherical.5th lens L5 has negative refracting power, and material is plastics, and object side S9 is concave surface, It is convex surface at image side surface S10 and optical axis, is concave surface at circumference, and be all aspherical.

Table 13

Table 14

Following data can be obtained according to table 13 and table 14:

f(mm)	0.97	SL/TTL	0.35
				FNO	2.1	f/f12	-0.55
H-FOV (degree)	185	f/f3-f/f4	-0.38
				D/2R₂	0.92	R₆/R₇	-1.98
f/f1	-0.17	CT4/CT5	1.4

8th embodiment

It please refers to Figure 29 to Figure 32, includes the first lens from object side to image side in the bugeye lens 10 of the 8th embodiment L1, the second lens L2, the third lens L3, the 4th lens L4, the 5th lens L5 and infrared fileter L6.

First lens L1 has negative refracting power, and material is glass, and object side S1 is convex surface, and image side surface S2 is concave surface, It and is all spherical surface.Second lens L2 has negative refracting power, and material is plastics, and object side S3 is concave surface, and image side surface S4 is recessed Face, and be all aspherical.The third lens L3 has positive refracting power, and material is plastics, and object side S5 is concave surface, image side surface S6 It for convex surface, and is all aspherical.4th lens L4 has positive refracting power, and material is plastics, and object side S7 is convex surface, image side Face S8 is convex surface, and is all aspherical.5th lens L5 has negative refracting power, and material is plastics, and object side S9 is concave surface, Image side surface S8 is convex surface, and is all aspherical.

Protection glass L7 is glass material, is arranged between infrared fileter L6 and imaging surface S13.

Bugeye lens 10 meets the condition of following table:

Table 15

Table 16

Following data can be obtained according to table 15 and table 16:

f(mm)	0.98	SL/TTL	0.36
				FNO	2.1	f/f12	-0.56
H-FOV (degree)	185	f/f3-f/f4	-0.28
				D/2R₂	0.92	R₆/R₇	-1.25
f/f1	-0.17	CT4/CT5	2.25

Figure 33 is please referred to, the camera mould group 100 of the utility model embodiment includes the super wide of any of the above-described embodiment The image side of bugeye lens 10 is arranged in angle mirror head 10 and photosensitive element 20, photosensitive element 20.

Specifically, photosensitive element 20 can use complementary metal oxide semiconductor (CMOS, Complementary Metal Oxide Semiconductor) imaging sensor or charge coupled cell (CCD, Charge-coupled Device) imaging sensor.

Figure 34 and Figure 35 are please referred to, the electronic device 1000 of the utility model embodiment includes shell 200 and above-mentioned reality The camera mould group 100 of mode is applied, camera mould group 100 is mounted on shell 200 for obtaining image.

Camera mould group 100 is arranged in shell 200 and from the exposure of shell 200 to obtain depth image, and shell 200 can be given Camera mould group 100 provides the protection such as dust-proof, waterproof, shatter-resistant, offers hole corresponding with camera mould group 100 on shell 200, so that Light is pierced by from hole or penetrates shell 200.In other embodiments, camera mould group 100 is housed in shell 200 and can It is stretched out out of shell 200, at this point, not needing to open up hole corresponding with the entering light direction of camera mould group 100 on shell 200.When need When using camera mould group 100, camera mould group 100 is reached out of shell 200 outside shell 200；When not needing using camera mould When group 100, camera mould group 100 is accommodated outside shell 200 to shell 200.In yet another embodiment, camera mould group 100 is received The lower section for holding in shell 200 and being located at display screen, at this point, also not needing to open up the entering light with camera mould group 100 on shell 200 The corresponding hole in direction.

The electronic device 1000 of the utility model embodiment includes but is not limited to for automobile mounted camera lens (such as Figure 34), intelligence It can phone (as shown in figure 35), mobile phone, personal digital assistant (Personal Digital Assistant, PDA), game The information terminal apparatus such as machine, personal computer (personal computer, PC), camera, smartwatch have camera function Household appliances etc..

In the description of this specification, reference term " certain embodiments ", " embodiment ", " some embodiment party The description of formula ", " exemplary embodiment ", " example ", " specific example " or " some examples " etc. means in conjunction with the embodiment party Formula or example particular features, structures, materials, or characteristics described be contained in the utility model at least one embodiment or In example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or example.And And particular features, structures, materials, or characteristics described can be in any one or more embodiments or example to close Suitable mode combines.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include at least one described feature.In the description of the utility model, the meaning of " plurality " is at least two, such as two It is a, three etc., unless otherwise specifically defined.

Although the embodiments of the present invention has been shown and described above, it is to be understood that above-mentioned embodiment party Formula is exemplary, and should not be understood as limiting the present invention, and those skilled in the art are in the utility model Above embodiment can be changed, be modified in range, replacement and variant, the scope of the utility model by claim and Its equivalent limits.

Claims

1. a kind of bugeye lens, which is characterized in that the bugeye lens successively includes: from object side to image side

The first lens with negative refracting power；

The second lens with negative refracting power；

The third lens with positive refracting power；

The 4th lens with positive refracting power；With

The 5th lens with refracting power；

The bugeye lens meets following relationship:

D/2R₂<0.93；

Wherein, D is the effective diameter of first lens, R₂For the radius of curvature of the image side surface of first lens.

2. bugeye lens according to claim 1, which is characterized in that first lens are meniscus lens, and institute The object side for stating the first lens is convex surface, and the object side of second lens and image side surface are concave surface, the third lens Image side surface is convex surface, at least one surface of the 4th lens and the 5th lens is aspherical.

3. bugeye lens according to claim 1, which is characterized in that the bugeye lens meets following relationship:

f/f1<-0.16；

Wherein, f is the effective focal length of the bugeye lens, and f1 is the focal length of first lens.

4. bugeye lens according to claim 1, which is characterized in that the bugeye lens further includes diaphragm, described Bugeye lens meets following relationship:

SL/TTL>0.34；

Wherein, SL is imaging surface distance on optical axis of the diaphragm to the bugeye lens, and TTL is first lens Distance of the object side to the imaging surface on optical axis.

5. bugeye lens according to claim 1, which is characterized in that the bugeye lens meets following relationship:

1/2H-FOV >=95 degree；

Wherein, H-FOV is the field angle of the horizontal direction of the imaging surface along the bugeye lens.

6. bugeye lens according to claim 1, which is characterized in that the bugeye lens meets following relationship:

f/f12<-0.5；

Wherein, f is the effective focal length of the bugeye lens, and f12 is the group focus of first lens and second lens Away from.

7. bugeye lens according to claim 1, which is characterized in that the bugeye lens meets following relationship:

-1<f/f3-f/f4<1；

Wherein, f is the effective focal length of the bugeye lens, and f3 is the focal length of the third lens, and f4 is the 4th lens Focal length.

8. bugeye lens according to claim 1, which is characterized in that the bugeye lens meets following relationship:

-3<R₆/R₇<0；

Wherein, R₆For the radius of curvature of the image side surface of the third lens, R₇For the curvature half of the object side of the 4th lens Diameter.

9. bugeye lens according to claim 1, which is characterized in that the bugeye lens meets following relationship:

CT4/CT5<4；

Wherein CT4 is thickness of the 4th lens on optical axis, and CT5 is thickness of the 5th lens on optical axis.

10. a kind of camera mould group, which is characterized in that the camera mould group includes:

Bugeye lens described in any one of claim 1-9；And

The image side of the bugeye lens is arranged in photosensitive element, the photosensitive element.

11. a kind of electronic device, which is characterized in that the electronic device includes:

Shell；With

Camera mould group described in any one of claim 10, the camera mould group installation is on the housing for obtaining image.