CN203480118U - Camera lens, camera device and mobile terminal - Google Patents

Abstract

The utility model relates to a camera lens, a camera device and a mobile terminal. The object of the utility model is to provide a camera lens composed of 5 lenses, even though the structure of the camera lens is smaller than that of a present camera lens, diffuse lights produced by the camera lens are reduced, and various aberrations can be well corrected. The camera lens (10) makes a shot object image to be formed on a shooting surface (also a projected surface) (I) of a shooting member (51), and has a positive first lens (L1) with a convex surface facing to an object side, a second lens (L2) nearby an optical axis (AX) and forming a negative lens, a third lens (L3), a forth lens (L4) and a negative fifth lens (L5) with a concave surface facing to an image side, wherein the five lenses are sequentially arranged from the object side. As to the camera lens (10), if the value of AS7 is set as a maximum deviation (mm) between an aspheric shape of an object side surface (S41) of the forth lens (L4) and a spherical shape (SP) connecting an effective diameter position of the forth lens (L4) and the central point of the forth lens (L4), and a value f is set as a focal distance of the whole system of the camera lens (10), the expression of 0.015 (AS7/f(0.07...(1) is satisfied.

Description

Imaging lens system, camera head and mobile terminal

Technical field

The utility model relates to small-sized imaging lens system, camera head and the mobile terminal that has suppressed diffused light, and the utility model relates in particular to imaging lens system, camera head and the mobile terminal that has 5 lens and be applicable to the low back of the body.

Background technology

In recent years, be accompanied by and adopted CCD(Charged Coupled Device) type imageing sensor or CMOS(Complementary Metal Oxide Semiconductor) high performance and the miniaturization of imaging apparatus of imaging apparatus of type imageing sensor etc., the mobile phone, the personal digital assistant device that possess camera head are gradually gained popularity.And then, be subject to being recently equipped on the maximization of display element and the impact of high-precision refinement of above-mentioned this personal digital assistant device, for imaging apparatus, also pursue high pixelation, thus surging gradually for the requirement of further high performance of imaging lens system that is equipped on these camera heads.As the imaging lens system with this purposes, owing to comparing and can realize high performance with the lens that formed by 3 lens or 4 lens, therefore the scheme (for example, with reference to patent documentation 1) of the imaging lens system that consists of 5 lens has been proposed.On the other hand, also pursue the slimming of personal digital assistant device, also thereupon surging to being equipped on the requirement of the low back of the body of imaging lens system of camera head, thus in order to realize high performance, need in the number that increases lens, also realize the equal or further low back of the body.Yet, if the low back of the body is developed, although the distance that light advances along optical axis direction shortens along the progressive distance in side perpendicular to optical axis, do not change, so light has the angle larger with respect to optical axis in lens.As a result, light is easy to be injected into beyond the effective coverage of lens, thereby causes being easy to produce diffused light.

In order to tackle this diffused light, as thering is the shading diaphragm that is different from opening diaphragm, and the imaging lens system being formed by 5 lens and disclose following imaging lens system, this imaging lens system is configured to possesses successively in order the first lens with positive refracting power from object side, the second lens, the 3rd lens, the 4th lens, and at least one side becomes aspheric the 5th lens with flex point, and, this imaging lens system also possesses at the shading diaphragm from being fixed between first lens to the three lens, and at the shading diaphragm (with reference to patent documentation 2) from being fixed between the 3rd lens to the five lens.

Yet, the imaging lens system that above-mentioned patent documentation 2 is recorded, the shape of the object side of the 4th lens approaches spherical shape, along with the development of the low back of the body, with periphery light object side incident towards the 4th lens with larger angle of the light beam of periphery image height imaging, thereby can produce larger aberration.

No. 2010/024198, [patent documentation 1] International Publication

No. 202330849 instructions of [patent documentation 2] Chinese utility model bulletin

Utility model content

The utility model in view of the aforementioned technical background in mentioned problem complete, its object is to provide a kind of imaging lens system consisting of 5 lens, although this imaging lens system is more small-sized with the imaging lens system structure compared of existing type, but less because of its diffused light producing, and can carry out good correction to various aberrations.

Herein, although be to weigh with the standard of small-sized imaging lens system, in the utility model but can meet the small-sized target that turns to of the level of following formula.

L/2Y<0.90…（15）

Wherein,

L: the lens face of the most close object side from imaging lens system whole system on optical axis is to the distance of picture side focus

2Y: the diagonal line length of the shooting face of imaging apparatus (diagonal line length of the rectangle effective pixel area of imaging apparatus)

What as side focus, say is the parallel rays that the is parallel to optical axis picture point while inciding imaging lens system herein.In addition, while disposing the parallel flat of seal glass (seal glass) in optical low-pass filter, infrared ray cut off filter or imaging apparatus external member etc. when the most close face as side at imaging lens system and between as side focal position, on the basis that is partly converted into vacuum range for parallel flat, the value of above-mentioned L is calculated.

For the value of L/2Y, more preferably its scope in following formula.

L/2Y<0.78…（15′）

In order to reach above-mentioned purpose, the related imaging lens system of the utility model possesses successively in order convex surface towards the positive first lens of object side from object side, the second lens, the 3rd lens, the 4th lens, and concave surface is towards the 5th lens of picture side, the 5th lens as side, be aspheric surface, and within the scope of effective diameter, there is flex point, at least one party in the second lens and the 3rd lens is negative lens, opening diaphragm leans on object side than the 3rd lens, between the 3rd lens and the 4th lens and between the 4th lens and the 5th lens, there is shading diaphragm, the object side mask of the 4th lens has aspheric shape, and, also meet following conditional (1).

0.015<AS7/f<0.07…（1）

Wherein,

AS7: the maximum deviation amount (mm) on the optical axis direction of the aspherical shape of the object side of the 4th lens and spherical shape that the effective diameter position of the 4th lens and central point are linked

F: the focal length of imaging lens system whole system (definition in following mathematical expression is also identical)

In the related imaging lens system of the utility model, because the convex surface of first lens makes the principal point position of whole system near object side towards object side, thereby contribute to the shortening of optical full length.And then, due to by by the 5th lens as side is made as concave surface, can extend back focal length, therefore can guarantee in order to configure the back focal length of the required expectation such as AF mechanism.And then, due to by by the 5th lens as side be made as within the scope of effective diameter, have flex point aspheric surface and can be by the light of periphery image height incident angle during towards image planes incident suppress for less angle, therefore can improve the optical efficiency that is subject to of sensor while having used imaging apparatus.Due to by opening diaphragm being configured to can make emergent pupil away from image planes than the 3rd lens by object side, therefore sensor incident angle can be suppressed for less angle.

In order to make the imaging lens system as the utility model with 5 lens, realize the low back of the body, need to make the principal point position of whole system near object side by positive diopter being come together in to the lens of 5 object sides in lens, and then reduce lens shared region in optical full length by shortening interval between each lens.If realized in addition heavy caliber, because the convex surface at the object side of first lens now produces larger spherical aberration, lens correction spherical aberration that therefore need to be after the second lens.In this case, because the negative lens that axle glazed thread height is higher can be revised spherical aberration effectively, therefore by will can effectively revising spherical aberration compared with at least one party in the second high lens and the 3rd lens as negative lens near object side and axle glazed thread height.Yet, development along with the low back of the body, with be greater than light that the visual angle at maximum visual angle is injected into imaging lens system from above-mentioned negative lens by there is the larger angle with respect to optical axis later, be therefore injected into the scope beyond the effective diameter of the 4th lens, the 5th lens, easily produce diffused light.

Therefore, by avoiding producing diffused light configuring shading diaphragm between the 3rd lens and the 4th lens and between the 4th lens and the 5th lens.In addition, with respect to have with respect to optical axis compared with the light of the periphery image height imaging of wide-angle, the periphery of the object side of the 4th lens forms subvertical angle, the refraction angle of light can be suppressed for less angle thus, thereby can suppress the generation of coma aberration etc.Yet, if keep the shape of approximate spherical shape, make the face angle of periphery approaching vertical with light, the sag amount of face increases, thereby occupies the region increase of the 4th lens of light total length, therefore can cause obstacle to the low back of the body.By making the object side mask of the 4th lens have aspherical shape and making the value of AS7/f can form higher than the lower limit of conditional (1) shape that departs from spherical shape, therefore, even in the situation that the face angle of periphery is approaching vertical with light, also can form the less shape of sag amount of face, thereby contribute to the low back of the body.On the other hand, by making the value of AS7/f lower than the upper limit of conditional (1), can prevent because of the excessive formability of lens that causes that becomes of the departure degree with respect to spherical shape impaired.

Herein, for the object side of first lens or the 5th lens as for side, when only with R this and utilize least square method to 5 one-tenth of effective diameter till shape while carrying out matching, if it is recessed that the center of curvature is defined as in air side, if this center of curvature is defined as protruding in side medium.In addition, only in this manual, if do not carry out Special Statement, near optical axis, optical axis around uses above-mentioned definition.

Wherein, the value of AS7/f is more preferably the scope in following formula.

0.02<AS7/f<0.05…（1′）

According to other concrete aspects of the present utility model, in above-mentioned imaging lens system, the having aspherical shape and have flex point as side of the 3rd lens, 7 one-tenths above local or integral body of its effective diameter have negative diopter.Herein, 7 one-tenth of effective diameter above meaning from reaching the border of 7 one-tenth of effective diameter to the belt-like zone of effective diameter outer rim.In addition, what negative diopter was said is that this light reflects towards the direction away from optical axis when parallel rays incident, and when the part of parallel rays in effective diameter reflects towards the direction away from optical axis, the part of this face has negative diopter.Like this, by making 7 one-tenth above local or integral body of the effective diameter of the 3rd lens there is negative diopter, make with the periphery light of the light shafts of maximum image height imaging the 3rd lens as side on roll over, therefore, be easy to make by later light, to there is the larger angle with respect to optical axis from the 3rd lens, thereby be conducive to realize the low back of the body.

In addition, of the present utility model on the other hand in, opening diaphragm can be configured to than the second lens by object side.

Of the present utility model another aspect in, meet following conditional (2).

0.75<dф/dz<2.5…（2）

Wherein,

D ф ... the internal diameter of the opening portion of the shading diaphragm between the internal diameter of the opening portion of the shading diaphragm between the 4th lens and the 5th lens and the 3rd lens and the 4th lens poor

Dz: the interval on the optical axis direction of the shading diaphragm between the shading diaphragm between the 4th lens and the 5th lens and the 3rd lens and the 4th lens

By the shading diaphragm II between the shading diaphragm I between the 3rd lens and the 4th lens and the 4th lens and the 5th lens is designed to the formula of satisfying condition (2) and can avoids producing diffused light.By making the value of the d ф/dz in conditional (2) higher than lower limit, the diameter of shading diaphragm I between the 3rd lens and the 4th lens is less than the diameter of the shading diaphragm II between the 4th lens and the 5th lens, even for from the 3rd lens, penetrate and have with respect to optical axis compared with for the light of large angle, also can to the flange part of the 4th lens, carry out shading fully, therefore, can prevent the diffused light that the light because of the flange part incident towards the 4th lens produces.On the other hand, by making the value of d ф/dz lower than the upper limit of conditional (2), the diameter of shading diaphragm II between the 4th lens and the 5th lens is not excessively greater than the diameter of the shading diaphragm I between the 3rd lens and the 4th lens, therefore can to the flange part of the 5th lens, carry out shading fully, therefore, can prevent the diffused light that the light because of the flange part incident towards the 5th lens produces.

Wherein, for the value of d ф/dz, be more preferably set as any the scope in following two mathematical expressions.

1.2<dф/dz<2.5…（2′）

0.90<dф/dz<2.0…（2′′）

Of the present utility model another aspect in, meet following conditional (3).

0.03<et6/f<0.10…（3）

Wherein,

Et6: the picture effective diameter position of side of the 3rd lens and the interval on the optical axis direction between the effective diameter position of the object side of the 4th lens

By making the value of the et6/f in conditional (3) higher than lower limit, can guarantee shading diaphragm I to be disposed at the interval of the surrounding of the 3rd lens and the 4th lens.On the other hand, by making the value of et6/f lower than the upper limit in conditional (3), can prevent from, because interval becomes excessive, the low back of the body is caused to obstacle.

Wherein, the more preferably scope in following formula of the value of et6/f.

0.05<et6/f<0.08…（3′）

Of the present utility model another aspect in, meet following conditional (4).

40<θS7<80…（4）

Wherein,

θ S7: the largest face angle of 7 one-tenth above scopes of the effective diameter of the object side of the 4th lens (°)

By making the value of the θ S7 in conditional (4) higher than lower limit, for refraction in the 3rd lens, have with respect to optical axis compared with for the light of large angle, by making it form subvertical angle, refraction angle can be suppressed to less angle, therefore can suppress the generation of coma aberration.On the other hand, by making the value of θ S7 lower than the upper limit in conditional (4), can prevent because of the face angle excessive formability that makes that becomes impaired.

Wherein, the more preferably scope in following formula of the value of θ S7.

50<θS7<75…（4′）

Of the present utility model another aspect in, meet following conditional (5).

|Sag6|/f<0.10…（5）

Wherein,

| Sag6|: the sag amount maximal value of the picture side of the 3rd lens

By | the value of Sag6|/f being set for to the scope of the formula of satisfying condition (5), reduce the sag amount of the picture side of the 3rd lens, therefore can reduce in lens total length, the shared region with respect to optical axis direction of the 3rd lens, thereby contribute to realize the low back of the body.

Wherein, | the value of Sag6|/f is the scope in following formula more preferably.

|Sag6|/f<0.05…（5′）

Of the present utility model another aspect in, meet following conditional (6).

-15<θS6<15…（6）

Wherein,

θ S6: the largest face angle of 9 one-tenth above scopes of the effective diameter of the picture side of the 3rd lens (°)

By the value of θ S6 being set for to the scope of the formula of satisfying condition (6), can make to reflect in the mode of dispersing with the periphery light of the light shafts of periphery image height imaging, therefore easily make this light from the 3rd lens by there is the larger angle with respect to optical axis later, thereby contribute to the low back of the body.

Wherein, the more preferably scope in following formula of the value of θ S6.

-10<θS6<10…（6′）

Of the present utility model another aspect in, meet following conditional (7).

0.65<|Sag7|/d7<1.50…（7）

Wherein,

| Sag7|: the sag amount maximal value of the object side of the 4th lens

D7: the center thickness of the 4th lens

By making in conditional (7) | the object side that the value of Sag7|/d7 increases the 4th lens higher than the upper limit is the region on shared optical axis direction in imaging lens system, therefore make the freedom shape of the object side of the 4th lens increase, can make its form with respect to from the 3rd lens by light be difficult to produce the shape of aberration.On the other hand, by making | the value of Sag7|/d7, lower than the upper limit of conditional (7), makes the sag amount of the object side of the 4th lens can not become excessive, thereby remarkable for realizing low back of the body effect.

Wherein, | the value of Sag7|/d7 is the scope in following formula more preferably.

0.75<|Sag7|/d7<1.30…（7′）

Of the present utility model another aspect in, meet following conditional (8).

0.45<θr6/θr4<1.00…（8）

Wherein,

θ r4: the refraction angle of the periphery light apart from an optical axis side far away in the picture diagonal angle image height light beam of side of the second lens

θ r6: the refraction angle of the periphery light apart from an optical axis side far away in the picture diagonal angle image height light beam of side of the 3rd lens

By make the value of the θ r6/ θ r4 in conditional (8) higher than lower limit, can utilize the second lens as side and the 3rd lens as side, share the upper folding of light, therefore the generation probability of aberration can be suppressed for less.On the other hand, by making the value of θ r6/ θ r4 lower than the upper limit of conditional (8), can prevent from crossing and causing producing by force aberration in the upper folding degree of the 3rd lens because of light.

Wherein, the more preferably scope in following formula of the value of θ r6/ θ r4.

0.50<θr6/θr4<0.90…（8′）

Of the present utility model another aspect in, meet following conditional (9).

0.05<et8/f<0.20…（9）

Wherein,

Et8: the picture effective diameter position of side of the 4th lens and the interval on the optical axis direction between the effective diameter position of the object side of the 5th lens

By making the value of the et8/f in conditional (9) higher than lower limit, can guarantee shading diaphragm II to be disposed at the interval between the 4th lens and the 5th lens, by making the value of et8/f lower than the upper limit in conditional (9), can prevent from, because the interval between the 4th lens and the 5th lens becomes excessive, the low back of the body is caused to obstacle.

Wherein, the more preferably scope in following formula of the value of et8/f.

0.07<et8/f<0.15…（9′）

Of the present utility model another aspect in, the 5th lens are negative lens, and meet following conditional (10).

45<v5<70…（10）

Wherein,

V5: the Abbe number of the 5th lens

By the 5th lens are made as to negative lens and can realize the low back of the body and can guarantee back focal length to a certain degree, therefore can reduce the impact producing when dirt, scar etc. are attached to lens.In addition, although thering is flex point as side and make its periphery there is positive diopter because of the 5th lens, but the periphery that can be suppressed at the 5th lens by the Abbe number v5 of the 5th lens is set for higher than the lower limit of conditional (10) produces aberration, thereby can reduce ratio chromatism,, realize thus high performance.On the other hand, by making Abbe number v5 lower than the upper limit of conditional (10), owing to being negative lens, therefore can also suppress aberration on axle thus.

Wherein, the more preferably scope in following formula of the value of v5.

50<v5<60…（10′）

Of the present utility model another aspect in, meet following conditional (11).

1.45<n1<1.65…（11）

Wherein,

N1: the refractive index of first lens

Along with the development of the low back of the body, make the principal point position of whole system near object side, so the radius-of-curvature of the convex surface of the object side of first lens reduce.Thereby the light that incides the periphery of entrance pupil forms larger spherical aberration.Particularly, in the situation that having realized heavy caliber, spherical aberration enlarges markedly, thereby high performance is caused to obstacle.Thereby, by making the refractive index n 1 of first lens higher than the lower limit of conditional (11), even if becoming to relax, face angle also can form identical focal length, therefore can prevent from producing larger spherical aberration at the larger convex surface of the protrusion degree of object side.In addition, on the contrary, if the refractive index of first lens raises, can cause the front side principal point of first lens and the interval between rear side principal point to increase, thereby to make the rear side principal point relevant with focal length near picture side, thereby to make focal length shortening and cause wide-angle.If make the rear side principal point of first lens near object side, make first lens itself near object side, optical full length increases, thereby is unfavorable for realizing the low back of the body.Make the protrusion degree of the convex surface of object side strengthen and make it approach crescent shape, can keep making rear side principal point near object side under the constant state of optical full length thus, yet, but can produce larger spherical aberration thus.Therefore, by making the refractive index n 1 of first lens lower than the upper limit of conditional (11), can realize the low back of the body but can not make the protrusion degree of the convex surface of object side become excessive, thereby the spherical aberration producing at first lens is suppressed for less.

Wherein, the more preferably scope in following formula of the value of n1.

1.50<n1<1.60…（11′）

Of the present utility model another aspect in, the second lens are negative lenses.Therefore like this, by the second lens are made as to negative lens, can utilize the second lens that light height is higher to revise the aberration producing at first lens, spherical aberration, can effectively revise and contribute to realize high performance.

Of the present utility model another aspect in, the absolute value of the radius-of-curvature as side of the second lens is less than the absolute value of radius-of-curvature of the object side of these the second lens.The angle of incidence of light of the object side towards the second lens can be suppressed for less angle, and can suitably carry out the correction of spherical aberration, thereby can guarantee high-performance.

Of the present utility model another aspect in, 7 one-tenth of the effective diameter as side of the second lens above local or whole negative diopters that have.Or the picture side of the second lens rolls tiltedly towards picture in effective diameter position.Like this, by making thering is negative diopter or the picture that faces of the effective diameter position as side of the second lens is rolled tiltedly at outer circumferential side as side of the second lens, can be easy to make reflect in the mode of dispersing with the periphery light of the light beam of periphery image height imaging, be therefore conducive to realize the low back of the body and be conducive to the correction to ratio chromatism.

Of the present utility model another aspect in, meet following conditional (12).

15<v2<30…（12）

Wherein,

V2: the Abbe number of the second lens

By the Abbe number v2 of the second lens is set for lower than the upper limit of conditional (12) and can aberration and ratio chromatism, on the axle producing at first lens be revised.On the other hand, by making Abbe number v2 higher than the upper limit of conditional (12), can prevent from aberration to carry out surplus correction.

Wherein, the more preferably scope in following formula of the value of v2.

20<v2<25…（12′）

Of the present utility model another aspect in, meet following conditional (13).

-0.2<f/f4<2.0…（13）

Wherein,

F4: the focal length of the 4th lens

By making the value of the f/f4 relevant with the focal length of the 4th lens lower than the upper limit of conditional (13), can prevent that positive diopter because of the 4th lens from becoming causes by force the focal length of whole system to shorten, and then causes causing wide-angle more than required degree.In addition, by making the focal length f4 of the 4th lens higher than the lower limit of conditional (13), can prevent that negative diopter because of the 4th lens from becoming and cause by force the focal length of whole system to increase, and then cause causing looking in the distance.

Of the present utility model another aspect in, meet following conditional (14).

1.1<f123/f<1.7…（14）

Wherein,

F123: the synthetic focal length of first lens to the three lens

The scope of value by making the f123/f relevant with the synthetic focal length of first lens to the three lens in conditional (14), can make the positive diopter of first lens to the three lens become just right, thereby can prevent from crossing and causing produce aberration by force, and can reduce optical full length because of positive diopter.

Of the present utility model another aspect in, opening diaphragm is than the second lens by object side, the second lens and the 5th lens are negative lenses, and meet following conditional (13).

-0.2<f/f4<2.0…（13）

Of the present utility model another aspect in, also possess and do not there are in fact dioptric lens.

In order to reach above-mentioned purpose, the related camera head of the utility model possesses above-mentioned imaging lens system and imaging apparatus.By using imaging lens system of the present utility model, can obtain the less and respond well small-sized camera head to the correction of various aberrations of diffused light.

In order to reach above-mentioned purpose, the related mobile terminal of the utility model possesses above-mentioned camera head.

Accompanying drawing explanation

Fig. 1 is the figure describing possessing the camera head of the imaging lens system of an embodiment of the present utility model.

Fig. 2 is the local amplification view that the state of lens, shading diaphragm is described.

Fig. 3 is the block diagram describing possessing the mobile terminal of the camera head of Fig. 1.

Fig. 4 A and Fig. 4 B are respectively the stereographic maps of face side and the rear side of mobile terminal.

Fig. 5 is the figure that the object side of the 4th lens is specifically described.

Fig. 6 is the cut-open view of the imaging lens system of embodiment 1.

Fig. 7 A～Fig. 7 E is the aberration diagram of the imaging lens system of embodiment 1.

Fig. 8 is the cut-open view of the imaging lens system of embodiment 2.

Fig. 9 A～Fig. 9 E is the aberration diagram of the imaging lens system of embodiment 2.

Figure 10 is the cut-open view of the imaging lens system of embodiment 3.

Figure 11 A～Figure 11 E is the aberration diagram of the imaging lens system of embodiment 3.

Figure 12 is the cut-open view of the imaging lens system of embodiment 4.

Figure 13 A～Figure 13 E is the aberration diagram of the imaging lens system of embodiment 4.

Figure 14 is the cut-open view of the imaging lens system of embodiment 5.

Figure 15 A～Figure 15 E is the aberration diagram of the imaging lens system of embodiment 5.

Figure 16 is the cut-open view of the imaging lens system of embodiment 6.

Figure 17 A～Figure 17 E is the aberration diagram of the imaging lens system of embodiment 6.

Figure 18 is the cut-open view of the imaging lens system of embodiment 7.

Figure 19 A～Figure 19 E is the aberration diagram of the imaging lens system of embodiment 7.

Figure 20 is the cut-open view of the imaging lens system of embodiment 8.

Figure 21 A～Figure 21 E is the aberration diagram of the imaging lens system of embodiment 8.

Figure 22 is the cut-open view of the imaging lens system of embodiment 9.

Figure 23 A～Figure 23 E is the aberration diagram of the imaging lens system of embodiment 9.

Figure 24 is the cut-open view of the imaging lens system of embodiment 10.

Figure 25 A～Figure 25 E is the aberration diagram of the imaging lens system of embodiment 10.

Figure 26 is the cut-open view of the imaging lens system of embodiment 11.

Figure 27 A～Figure 27 E is the aberration diagram of the imaging lens system of embodiment 11.

Figure 28 is the cut-open view of the imaging lens system of embodiment 12.

Figure 29 A～Figure 29 E is the aberration diagram of the imaging lens system of embodiment 12.

Figure 30 is the cut-open view of the imaging lens system of embodiment 13.

Figure 31 A～Figure 31 E is the aberration diagram of the imaging lens system of embodiment 13.

Figure 32 is the cut-open view of the imaging lens system of embodiment 14.

Figure 33 A～Figure 33 E is the aberration diagram of the imaging lens system of embodiment 14.

Figure 34 is the cut-open view of the imaging lens system of embodiment 15.

Figure 35 A～Figure 35 E is the aberration diagram of the imaging lens system of embodiment 15.

Figure 36 is the cut-open view of the imaging lens system of embodiment 16.

Figure 37 A～Figure 37 E is the aberration diagram of the imaging lens system of embodiment 16.

Figure 38 is the cut-open view of the imaging lens system of embodiment 17.

Figure 39 A～Figure 39 E is the aberration diagram of the imaging lens system of embodiment 17.

Figure 40 is the cut-open view of the imaging lens system of embodiment 18.

Figure 41 A～Figure 41 E is the aberration diagram of the imaging lens system of embodiment 18.

Figure 42 is the cut-open view of the imaging lens system of embodiment 19.

Figure 43 A～Figure 43 E is the aberration diagram of the imaging lens system of embodiment 19.

Figure 44 is the cut-open view of the imaging lens system of embodiment 20.

Figure 45 A～Figure 45 E is the aberration diagram of the imaging lens system of embodiment 20.

Embodiment

Below, with reference to Fig. 1 etc., the imaging lens system of an embodiment of the present utility model is described.Wherein, the pass the imperial examinations at the provincial level structure of the structure of imaging lens system 10 that exemplifies and the imaging lens system 11 of embodiment 1 described later of Fig. 1 is identical.

Fig. 1 is the cut-open view describing possessing the camera assembly of the imaging lens system of an embodiment of the present utility model.

Camera assembly 50 possesses: the imaging lens system 10 that forms subject picture; Detect the imaging apparatus 51 of the subject picture forming by imaging lens system 10; Keep from behind above-mentioned imaging apparatus 51 and there is the wiring substrate 52 of distribution etc.; And lens barrel portion 54, this lens barrel portion 54 keeps imaging lens system 10 grades also to have peristome OP, from the light beam of object side from this peristome OP incident.Imaging lens system 10 has the subject of making and looks like to be formed at the image planes of imaging apparatus 51 or the function of shooting face (being projected face) I.Although this camera assembly 50 is assembled in camera head described later and uses, and also it is called separately to camera head.

Imaging lens system 10 possesses successively in order opening diaphragm AS, first lens L1, the second lens L2, the 3rd lens L3, the 4th lens L4 and the 5th lens L5 from object side.The structure small compact of imaging lens system 10, the target of its miniaturization meets the level of following mathematical expression (15) for its size is reached.

L/2Y<0.90…（15）

Herein, the lens face S11 from the most close object side that L represents imaging lens system 10 whole systems is to the distance the optical axis AX of picture side focus, 2Y represents the shooting face diagonal length (catercorner length of the rectangle effective pixel area of imaging apparatus 51) of imaging apparatus 51, and what as side focus, say is the parallel rays that the is parallel to optical axis AX picture point while inciding imaging lens system 10.By making above-mentioned each parameter meet above-mentioned scope, can realize the miniaturization of camera assembly 50 integral body.

In addition, when imaging lens system 10 the most close as the face S52 of side and while disposing the parallel flat F of seal glass etc. of optical low-pass filter, infrared ray cut off filter or imaging apparatus external member (package) between as side focal position, for parallel flat F part, be scaled the value of calculating again above-mentioned L on the basis of vacuum range.In addition, more preferably make its scope in following formula.

L/2Y<0.78…（15′）

Imaging apparatus 51 is the sensor chips that comprise solid-state imager.The photoelectric conversion part 51a of imaging apparatus 51 comprises CCD(charge coupled cell), CMOS(complementary metal oxide semiconductor (CMOS)), according to every kind of color in RGB, incident light is carried out to opto-electronic conversion, and by its analog signal output.Surface as the photoelectric conversion part 51a of light accepting part becomes image planes or shooting face (being projected face) I.

Wiring substrate 52 for example has, with respect to other parts (lens barrel portion 54) arranges fixing effect by imaging apparatus 51.Wiring substrate 52 can accept to supply with from external circuit for driving imaging apparatus 51, the voltage of driving mechanism 55, signal, can also be to above-mentioned external circuit output detection signal.

In imaging lens system 10 sides of imaging apparatus 51, utilize not shown holding member that parallel flat F configuration is fixed into and covers imaging apparatus 51 etc.

Lens barrel portion 54 takes in and keeps imaging lens system 10.Lens barrel portion 54 for example has driving mechanism 55a, and the above lens arbitrarily that this driving mechanism 55a makes to form in the lens L1～L5 of imaging lens system 10 move along optical axis AX, can carry out thus the action of the focusing of imaging lens system 10.Driving mechanism 55a for example possesses voice coil motor (voice coil motor) and guiding piece, specific lens is come and gone mobile along optical axis AX.

With reference to Fig. 2 etc., to being held in the state of the imaging lens system 10 in lens barrel portion 54, describe.The first～five lens L1～L5 that forms imaging lens system 10 has respectively the flange part 39 of supporting use, by flange part 39 and stacked with adjacent lens, and these lens is held in lens barrel part 54a.Between these lens L1～L5, in the mode across flange part 39, dispose the first～four shading diaphragm FS1～FS4, to prevent diffused light.The first～four shading diaphragm FS1～FS4 is for example formed by the thin plate of metal.At the object side of lens barrel part 54a, be formed with the surrounding of the effective diameter of lens L1 is covered to such opening diaphragm AS.

Next, with reference to Fig. 3, Fig. 4 A and Fig. 4 B, to being equipped with the pass the imperial examinations at the provincial level example of other mobile terminals 300 such as mobile phone of the camera assembly 50 that exemplifies of Fig. 1, describe.

Mobile terminal 300 is mobile communication terminals of smart phone (smart phone) and so on, and it possesses: the camera head 100 with camera assembly 50; The unified control part (CPU) 310 of controlling each portion and carrying out the program corresponding with various processing; Display operation portion 320, this display operation portion 320 is the touch panels that show the operation of the data relevant to communication and the image of shooting etc. and accepted user; The operating portion 330 that comprises power switch etc.; Wireless communication part 340 for the various information communications between realization and external server etc. via antenna 341; The storage part (ROM) 360 that the required various data of the system program of mobile terminal 300, various handling procedure and Termination ID etc. are stored; Interim storage part (RAM) 370, this interim storage part 370 is used as the perform region of various handling procedures that interim storage carried out by control part 310 or the camera data of data, deal with data or camera head 100 etc.

Except the camera assembly 50 having illustrated, camera head 100 also possesses control part 103, optical system drive division 105, imaging apparatus drive division 107, video memory 108 etc.

Control part 103 is controlled each portion of camera head 100.Control part 103 comprises CPU(Central Processing Unit), RAM(Random Access Memory), ROM(Read Only Memory) etc., by the various programs of reading from ROM and launching and the work compound of CPU, carry out various processing among RAM.In addition, control part 310 is connected with the control part 103 of camera head 100 in the mode that can communicate by letter, thereby can send also reception control signal, view data.

When focusing by the control of control part 103, during exposure etc., optical system drive division 105 moves first and second driving mechanism 55a of imaging lens system 10 and controls the state of imaging lens system 10.Optical system drive division 105 makes imaging lens system 10 carry out focus operation in the following manner, that is, thereby driving mechanism 55a is moved, the specific lens in imaging lens system 10 are suitably moved along optical axis AX.

When the control by control part 103 exposes etc., imaging apparatus drive division 107 is controlled the action of imaging apparatuss 51.Particularly, imaging apparatus control part 107 controls to drive imaging apparatus 51 to scan based on time signal.In addition, imaging apparatus drive division 107 is converted to the view data of digital form using the detection signal from imaging apparatus 51 output or as the simulating signal of photoelectric conversion signal.And then imaging apparatus drive division 107 can be processed implemented the various images of distortion correction, color correction, compression etc. by the detected picture signal of imaging apparatus 51.

The picture signal that video memory 108 is accepted numberization from imaging apparatus drive division 107, and store it as the view data that can read and write.

Herein, to comprising that the shooting action of the mobile terminal 300 of above-mentioned camera head 100 describes.When mobile terminal 300 is set the camera mode of moving as camera for, carry out supervision (seeing through lenticular image shows) to subject and the execution of image taking.In monitoring process, the shooting face I(that the image of the subject obtaining by imaging lens system 10 is formed at imaging apparatus 51 is with reference to Fig. 1).Imaging apparatus 51 is driven and scans by imaging apparatus drive division 107, and exports the simulating signal corresponding, that export as opto-electronic conversion of the light image with imaging within each fixed cycle of a picture.

For above-mentioned simulating signal, in the circuit that is attached to imaging apparatus 51, for the adjustment that suitably gains of the various primary components of RGB, and then be converted into digital data.These number data are comprised to pixel interpolation is processed and the color treatments of Y correcting process, thereby generate the brightness signal Y of digital value and colour difference signal Cb, Cr(view data) and by these signal storage in video memory 108.From video memory 108, read termly stored digital data and generate the vision signal corresponding with it, and then via control part 103 and control part 310, this vision signal is outputed to display operation portion 320.

This display operation portion 320 brings into play function in monitoring process as finder (finder), and shows in real time photographed images.Under this state, the operation input of carrying out via display operation portion 320 based on user at any time is also set the focusing of imaging lens system 10, exposure etc. by the driving of optical system drive division 150.

Under this monitored state, by user, suitably display operation portion 320 is operated to take and obtain Still image data.According to the content of operation of display operation portion 320, read the view data of a picture that is stored in video memory 108, and utilize 107 pairs of these view data of imaging apparatus drive division to compress.View data after this compression is via control part 103 and control part 310 and be recorded in such as RAM370 etc.

In addition, above-mentioned camera head 100 is examples for preferred camera head of the present utility model, and the utility model is not limited to this.

; be equipped with the camera head of camera assembly 50 or imaging lens system 10; be not limited to the mobile terminal 300 that is built in smart phone and so on; can also be built in mobile phone, PHS(Personal Handyphone System) etc., also can be built in PDA(Personal Digital Assistant), panel computer, removable computer, digital camera, video camera etc.

Below, turn back to Fig. 1 etc., the imaging lens system 10 as an embodiment of the present utility model is elaborated.Imaging lens system 10 shown in Fig. 1 makes subject look like to be formed at shooting face (the being projected face) I of imaging apparatus 51, and this imaging lens system 10 possesses successively in order from object side: convex surface is towards the positive first lens L1 of object side; Near optical axis AX, form the second lens L2 of negative lens; The 3rd lens L3; The 4th lens L4; And concave surface is towards the 5th negative lens L5 of picture side.In above-mentioned imaging lens system 10, the 5th lens L5 is aspheric surface and within the scope of effective diameter, has flex point P as side S52.In addition, for the second lens L2, as the absolute value of the radius-of-curvature of side S22, be less than the absolute value of the radius-of-curvature of object side S21.The effective diameter position of the picture S22 upper end, side of the second lens L2 rolls tiltedly towards picture.The 3rd lens L3 has flex point P as side S32, and 7 one-tenth above part or integral body of effective diameter have negative diopter.Imaging lens system 10 is leaning on the position of object side to have opening diaphragm AS than the 3rd lens L3, and opening diaphragm AS is configured to than first lens L1 by object side in illustrated example.For imaging lens system 10, between the 3rd lens L3 and the 4th lens L4, there is the 3rd shading diaphragm FS3, between the 4th lens L4 and the 5th lens L5, there is the 4th shading diaphragm FS4, in illustrated example, also between first lens L1 and the second lens L2, there is the first shading diaphragm FS1, and between the second lens L2 and the 3rd lens L3, there is the second shading diaphragm FS2.

According to above-mentioned imaging lens system 10, the object side S11 of first lens L1 protrudes, and is conducive to the shortening of optical full length.In addition, the second lens L2 is configured to negative lens, thereby can improves the correction effect of aberration.And then, by the 5th lens L5 as side S52, be arranged to depression, thereby be easy to guarantee in order to configure the back focal length (back focus) of the required expectation such as AF mechanism.And then, make that the 5th lens L5's form the aspheric surface within the scope of effective diameter with flex point P as side S52, thus can be by the light LA of periphery image height incident angle during towards image planes incident suppress for less angle, thereby can improve the optical efficiency that is subject to of shooting face I while having used imaging apparatus 51.Opening diaphragm AS is configured to lean on object side (more preferably leaning on object side than the second lens L2) than the 3rd lens L3, can makes thus emergent pupil away from image planes, thereby the incident angle towards shooting face I can be suppressed for less angle.

In addition, in above-mentioned imaging lens system 10, by between the 3rd lens L3 and the 4th lens L4 and configure shading diaphragm FS3, FS4 etc. between the 4th lens L4 and the 5th lens L5 and avoid producing diffused light.

In above-mentioned imaging lens system 10, if the object side S41 of the 4th lens L4 forms the face angle of near vertical with respect to following light, the refraction angle at object side S41 can be suppressed for less angle, thereby can suppress to produce coma aberration etc., wherein, above-mentioned light is in the 3rd lens L3, reflect and have the light compared with wide-angle with respect to optical axis AX.

; in above-mentioned imaging lens system 10; the object side S41 of the 4th lens L4 has aspherical shape; if value AS7 is made as at the aspherical shape of the object side of the 4th lens L4 S41 and spherical shape SP(that the effective diameter position of the object side S41 of the 4th lens L4 and central point are linked with reference to Fig. 5) optical axis AX direction on maximum deviation amount (mm); and value f is made as to the focal length of the whole system of imaging lens system 10, meet following conditional (1).

0．015＜ＡＳ7／ｆ＜0．07…（1）

Wherein, for the value AS7/f in conditional (1), preferably make in its scope in following conditional (1 ').

0．02＜ＡＳ7／ｆ＜0．05…（1’）

According to above-mentioned imaging lens system 10, by making the value AS7/f relevant to the object side S41 of the 4th lens L4 higher than the lower limit of conditional (1) etc., can make this object side S41 form the shape that departs from spherical shape, even therefore in the situation that near face angle increase effective diameter, it is excessive that the sag amount of face can not become yet, thereby be conducive to the low back of the body.On the other hand, the upper limit by the value of making AS7/f lower than conditional (1), the degree that the shape that can prevent this object side S41 the departs from spherical shape impaired situation of formabilities excessive, lens that becomes.

Except above-mentioned conditional (1) etc., the imaging lens system 10 of present embodiment also meets the conditional (2) having illustrated.

0．75＜ｄΦ／ｄｚ＜2．5…（2）

Wherein, value d ф represents the poor of the bore (internal diameter of opening portion) of the 4th shading diaphragm FS4 between the 4th lens L4 and the 5th lens L5 and the bore (internal diameter of opening portion) of the 3rd shading diaphragm FS3 between the 3rd lens L3 and the 4th lens L4, and value dz represents the 4th shading diaphragm FS4 between the 4th lens L4 and the 5th lens L5 and the 3rd interval of shading diaphragm FS3 in optical axis AX direction between the 3rd lens L3 and the 4th lens L4.

In addition, more preferably the imaging lens system 10 of present embodiment meets at least one party in following conditional (2 '), (2 ' ').

1．2＜ｄΦ／ｄｚ＜2．5…（2’）

0．90＜ｄΦ／ｄｚ＜2．0…（2”）

Except above-mentioned conditional (1) etc., the imaging lens system 10 of present embodiment also meets the conditional (3) having illustrated.

0．03＜ｅｔ6／ｆ＜0．10…（3）

Wherein, value et6 represents the picture effective diameter position of side S32 of the 3rd lens L3 and the effective diameter position of the object side S41 of the 4th lens L4 interval in optical axis AX direction.

In addition, more preferably the imaging lens system 10 of present embodiment meets following conditional (3 ').

0．05＜ｅｔ6／ｆ＜0．08…（3’）

Except above-mentioned conditional (1) etc., the imaging lens system 10 of present embodiment also meets the conditional (4) having illustrated.

40＜θＳ7＜80…（4）

Wherein, value θ S7 represent the 4th lens L4 object side S41 7 one-tenth of effective diameter above scopes largest face angle (°).

In addition, more preferably the imaging lens system 10 of present embodiment meets following conditional (4 ').

50＜θＳ7＜75…（4’）

When utilizing vacuum vapour deposition when preventing that reflectance coating is arranged at the optical surface of lens, conventionally notified the film that forms thinner thickness at the larger position of face angle herein.If thickness attenuate, compares with the situation of design thickness, transmitance wavelength characteristic can be offset towards short wavelength side, thereby makes to prevent that the reflection of light rate of the long wavelength side of the wavelength band that the effect of reflection is achieved from raising.Therefore,, if the formula of satisfying condition (4), the face angle within the scope of the effective diameter of the object side S41 of the 4th lens L4 increases, thereby causes above-mentioned phenomenon, in lens perimeter portion, cannot obtain required transmitance wavelength characteristic.Therefore, sometimes only for the reflectance coating that prevents of the object side S41 of the 4th lens L4, be designed to from other optical surface of imaging lens system 10 prevent that reflectance coating is different.For example, the thickness that prevents reflectance coating of the object side S41 of the 4th lens L4 is set for, making with optical axis AX angulation θ is 0 degree and reaching below 1.5% in scope that the reflection of light rate of incident is 420nm～750nm at wavelength band, and, the reflectance coating that prevents of other optical surfaces is set for, and making with optical axis AX angulation θ is 0 degree and reaching below 1% in scope that the reflection of light rate of incident is 420nm～650nm at wavelength band.

Except above-mentioned conditional (1) etc., the imaging lens system 10 of present embodiment also meets the conditional (5) having illustrated.

｜Ｓａｇ6｜／ｆ＜0．10…（5）

Wherein, value | Sag6| represents the sag amount maximal value of the picture side S32 of the 3rd lens L3.

In addition, more preferably the imaging lens system 10 of present embodiment meets following conditional (5 ').

｜Ｓａｇ6｜／ｆ＜0．05…（5’）

Except above-mentioned conditional (1) etc., the imaging lens system 10 of present embodiment also meets the conditional (6) having illustrated.

－15＜θＳ6＜15…（6）

Wherein, value θ S6 represent 9 one-tenths of effective diameter of picture side S32 of the 3rd lens L3 largest face angles in scopes above (°).

In addition, more preferably the imaging lens system 10 of present embodiment meets following conditional (6 ').

－10＜θＳ6＜10…（6’）

Except above-mentioned conditional (1) etc., the imaging lens system 10 of present embodiment also meets the conditional (7) having illustrated.

0．65＜｜Ｓａｇ7｜／ｄ7＜1．50…（7）

Wherein, value | Sag7| represents the sag amount maximal value of the object side S41 of the 4th lens L4, and value d7 represents the center thickness of the 4th lens L4.

In addition, more preferably the imaging lens system 10 of present embodiment meets following conditional (7 ').

0．75＜｜Ｓａｇ7｜／ｄ7＜1．30…（7’）

Except above-mentioned conditional (1) etc., the imaging lens system 10 of present embodiment also meets the conditional (8) having illustrated.

0．45＜θｒ6／θｒ4＜1．00…（8）

Wherein, value θ r4 represents the refraction angle as the periphery light LA2 apart from an optical axis AX side far away in the diagonal angle image height light beam of side S22 of the second lens L2, and value θ r6 represents the refraction angle as the periphery light LA2 apart from an optical axis AX side far away in the diagonal angle image height light beam of side S32 of the 3rd lens L3.

In addition, more preferably the imaging lens system 10 of present embodiment meets following conditional (8 ').

0．50＜θｒ6／θｒ4＜0．90…（8’）

Except above-mentioned conditional (1) etc., the imaging lens system 10 of present embodiment also meets the conditional (9) having illustrated.

0．05＜ｅｔ8／ｆ＜0．20…（9）

Wherein, value et8 represents the picture effective diameter position of side S42 of the 4th lens L4 and the interval in optical axis AX direction between the effective diameter position of the object side S51 of the 5th lens L5.

In addition, more preferably the imaging lens system 10 of present embodiment meets following conditional (9 ').

0．07＜ｅｔ8／ｆ＜0．15…（9’）

Except above-mentioned conditional (1) etc., the imaging lens system 10 of present embodiment also meets the conditional (10) having illustrated.

45＜ｖ5＜70…（10）

Wherein, value v5 represents the Abbe number of the 5th lens L5.

In addition, more preferably the imaging lens system 10 of present embodiment meets following conditional (10 ').

50＜ｖ5＜60…（10’）

Except above-mentioned conditional (1) etc., the imaging lens system 10 of present embodiment also meets the conditional (11) having illustrated.

1．45＜ｎ1＜1．65…（11）

Wherein, value n1 represents the refractive index of first lens L1.

In addition, more preferably the imaging lens system 10 of present embodiment meets following conditional (11 ').

1．50＜ｎ1＜1．60…（11’）

Except above-mentioned conditional (1) etc., the imaging lens system 10 of present embodiment also meets the conditional (12) having illustrated.

15＜ｖ2＜30…（12）

Wherein, value v2 represents the Abbe number of the second lens L2.

In addition, more preferably the imaging lens system 10 of present embodiment meets following conditional (12 ').

20＜ｖ2＜25…（12’）

Except above-mentioned conditional (1) etc., the imaging lens system 10 of present embodiment also meets the conditional (13) having illustrated.

－0．2＜ｆ／ｆ4＜2．0…（13）

Wherein, value f4 represents the focal length of the 4th lens L4.

Except above-mentioned conditional (1) etc., the imaging lens system 10 of present embodiment also meets the conditional (14) having illustrated.

1．1＜ｆ123／ｆ＜1．7…（14）

Wherein, value f123 represents the synthetic focal length of first lens L1 to the three lens L3.

Although do not illustrate in the imaging lens system 10 of present embodiment, can also possess and not there are in fact dioptric lens.

[embodiment]

Below the specific embodiment of the related imaging lens system of the utility model is described.In each embodiment, r means radius-of-curvature, and d means interval above axle, and nd means the refractive index with respect to d line of lens material, and vd means the Abbe number of lens material, and " eff.dia. " means effective diameter.In addition, the face that records " * " after the label of each face is the face with aspherical shape, and aspheric shape is usingd the summit of face as initial point, and X-axis is got and made optical axis AX direction, height in direction perpendicular to optical axis AX is made as to h, thereby utilizes following " mathematical expression 1 " to represent.

[mathematical expression 1]

$X=\frac{{\mathrm{<figure-callout\; id="2"\; label="h"\; filenames="HDA00003345446300031.png,HDA00003345446300092.png"\; state="\{\{state\}\}">h</figure-callout>}}^2/\mathrm{<figure-callout\; id="1"\; label="R"\; filenames="HDA00003345446300072.png,HDA00003345446300154.png"\; state="\{\{state\}\}">R</figure-callout>}}{1+\sqrt{1-(1+K){\mathrm{<figure-callout\; id="2"\; label="h"\; filenames="HDA00003345446300031.png,HDA00003345446300092.png"\; state="\{\{state\}\}">h</figure-callout>}}^2/{\mathrm{<figure-callout\; id="2"\; label="R"\; filenames="HDA00003345446300031.png,HDA00003345446300092.png"\; state="\{\{state\}\}">R</figure-callout>}}^2}}+\mathrm{\&Sigma;}{A}_i{h}^i$

Wherein,

The asphericity coefficient of Ai:i time

R: radius-of-curvature

K: the constant of the cone

And then in each embodiment, " STO " means opening diaphragm AS, " FS " means shading diaphragm FS1～FS4." OBJ " represents object plane, " IMG " expression shooting face or image planes.

In addition, the fundamental wavelength that the imaging lens system of each embodiment of take is used as prerequisite is 587.56nm, and the unit of the face shape of radius-of-curvature etc. is mm.

[embodiment 1]

The data of the lens face of embodiment 1 have been shown in following table 1.

[table 1]

The asphericity coefficient of the lens face of embodiment 1 has been shown in following table 2.

[table 2]

The 3rd

K=8.40264e-002,A4=8.56660e-003,A6=3.74548e-002,A8=-9.94910e-003,

A10=1.39437e-001,A12=1.83743e-001,A14=-6.61542e-001

The 4th

K=-8.00000e+001,A4=8.15473e-002,A6=1.48956e-001,A8=-8.00726e-003,

A10=-8.45306e-001,A12=-7.80922e-001,A14=1.51226e+000

The 6th

K=-1.51570e+001,A4=-6.52781e-002,A6=5.55279e-001,A8=-6.43629e-001,

A10=-1.27510e+000,A12=-2.30972e-001,A14=2.59808e+000

The 7th

K=-1.07565e+001,A3=-1.64532e-002,A4=1.84183e-001,A5=-2.12717e-002,

A6=2.24089e-001,A8=-1.32556e-001,A10=-3.07671e-001,A12=-7.81704e-001,

A14=2.62851e+000

The 9th

K=-2.46828e+001,A3=1.78014e-002,A4=-2.98099e-001,A5=4.17862e-003,

A6=2.48264e-001,A8=-4.48455e-001,A10=2.56799e-002,A12=1.55541e+000,

A14=-1.13314e+000

The 10th

K=0.00000e+000,A3=-2.29665e-002,A4=-1.68320e-001,A5=-1.16569e-002,

A6=-1.10215e-001,A8=5.52093e-002,A10=9.17457e-002,A12=-2.40059e-001,

A14=3.57381e-001

The 12nd

K=7.89034e+001,A3=3.95136e-002,A4=-2.18752e-001,A5=1.79326e-001,

A6=4.22969e-002,A8=-2.28953e-001,A10=1.10547e-001,A12=-5.54089e-002,

A14=2.07083e-002

The 13rd

K=-6.09314e+000,A3=-8.62507e-002,A4=-2.21737e-001,A5=1.98418e-001,

A6=2.56368e-001,A8=-2.03036e-001,A10=-1.94132e-002,A12=5.68146e-002,

A14=-1.46505e-002

The 15th

K=-3.74130e+000,A3=-2.92051e-001,A4=9.08690e-002,A5=4.49267e-002,

A6=2.35166e-002,A8=-9.37393e-003,A10=-1.34061e-003,A12=6.46898e-004,

A14=-5.02706e-005

The 16th

K=-8.42520e+000,A3=-1.67128e-001,A4=1.28201e-002,A5=2.83371e-002,

A6=-1.58193e-003,A8=-7.93232e-003,A10=1.39937e-003,A12=-2.06082e-004,

A14=4.95307e-005

Wherein, (comprise the lens data in table) after this, utilize for example 2.5e-002 of e() represent 10 power multiplier (for example 2.5 * 10 ^-002).

Below enumerate the characteristic of the imaging lens system of embodiment 1.

Herein, FL means the focal length of imaging lens system whole system, and Fno means F number, and w means diagonal angle of view, and Ymax means half of shooting face diagonal length of imaging apparatus, and BF means back focal length, and TL means system total length.In addition, above label also represents the same meaning in embodiment after this.

The data of the single lens of embodiment 1 have been shown in following table 3.

[table 3]

Fig. 6 is the cut-open view of imaging lens system 11 grades of embodiment 1.Imaging lens system 11 possesses successively in order from object (OBJ) side: at optical axis AX, have the first lens L1 of the biconvex of positive refracting power around; At optical axis AX, there is negative refracting power and convex surface around towards the second lens L2 of the crescent shape of object side; At optical axis AX, there is weak positive refracting power and convex surface around towards the 3rd lens L3 of the plano-convex of object side; At optical axis AX, there is positive refracting power and convex surface around towards the 4th lens L4 of the crescent shape of picture side; And there is the 5th lens L5 of the concave-concave of negative refracting power around at optical axis AX.Whole lens L1～L5 form by plastic material.Object side in first lens L1 outer rim disposes opening diaphragm (STO) AS, disposes shading diaphragm (FS) FS1～FS4 between lens L1～L5.In addition, for example between the light entrance face of first lens L1 and object, can configure the parallel flat (not shown) with suitable thickness.

Fig. 7 A～Fig. 7 C shows the various aberration diagrams (spherical aberration, astigmatism, distortion) of the imaging lens system 11 of embodiment 1, and Fig. 7 D and Fig. 7 E show the meridian circle coma aberration (meridian coma aberration) of the imaging lens system 11 of embodiment 1.

[embodiment 2]

The data of the lens face of embodiment 2 have been shown in following table 4.

[table 4]

The asphericity coefficient of the lens face of embodiment 2 has been shown in following table 5.

[table 5]

The 3rd

K=1.58566e-001,A4=4.20305e-003,A6=2.72567e-002,A8=-1.56767e-002,

A10=1.42586e-001,A12=2.48182e-001,A14=-8.00217e-001

The 4th

K=-8.00000e+001,A4=6.37219e-002,A6=1.83206e-001,A8=-5.11410e-002,

A10=-8.52233e-001,A12=-7.18598e-001,A14=1.42844e+000

The 6th

K=6.32828e+000,A4=-5.29705e-002,A6=5.37983e-001,A8=-6.27724e-001,

A10=-1.33549e+000,A12=-2.32847e-001,A14=2.58814e+000

The 7th

K=-9.82580e+000,A3=-1.47083e-002,A4=2.56976e-001,A5=2.37201e-003,

A6=1.52307e-001,A8=-1.55902e-001,A10=-1.17190e-001,A12=-6.13698e-001,

A14=2.24758e+000

The 9th

K=-8.00000e+001,A3=2.14653e-002,A4=-2.74039e-001,A5=2.50625e-002,

A6=1.85183e-001,A8=-3.08202e-001,A10=3.14872e-002,A12=1.32414e+000,

A14=-9.31295e-001

The 10th

K=0.00000e+000,A3=-5.07719e-004,A4=-1.95708e-001,A5=9.83654e-003,

A6=-5.41176e-002,A8=-2.24051e-002,A10=8.70178e-002,A12=-1.17712e-001,A14=2.66681e-001

The 12nd

K=3.52816e+001,A3=4.13949e-002,A4=-1.93302e-001,A5=1.83682e-001,

A6=-1.57663e-002,A8=-1.30385e-001,A10=2.08155e-002,A12=-1.78657e-002,

A14=1.78851e-002

The 13rd

K=-6.36913e+000,A3=-9.32470e-002,A4=-2.20085e-001,A5=2.00760e-001,

A6=2.26999e-001,A8=-2.05683e-001,A10=8.96327e-004,A12=5.05491e-002,

A14=-1.50195e-002

The 15th

K=-4.62212e+001,A3=-2.83456e-001,A4=5.78495e-002,A5=3.70434e-002,

A6=2.58009e-002,A8=-5.70495e-003,A10=-1.42489e-003,A12=3.63142e-004,

A14=-9.49648e-006

The 16th

K=-9.04803e+000,A3=-1.48734e-001,A4=-9.21924e-004,A5=2.03273e-002,

A6=3.84398e-003,A8=-7.05383e-003,A10=1.11082e-003,A12=-1.69187e-004,

A14=4.53946e-005

Below enumerate the characteristic of the imaging lens system of embodiment 2.

The data of the single lens of embodiment 2 have been shown in following table 6.

[table 6]

Fig. 8 is the cut-open view of imaging lens system 12 grades of embodiment 2.Imaging lens system 12 possesses successively in order from object side: at optical axis AX, have positive refracting power and convex surface around towards the first lens L1 of the crescent shape that approaches plano-convex of object side; At optical axis AX, there is negative refracting power and convex surface around towards the second lens L2 of the crescent shape of object side; At optical axis AX, there is the 3rd lens L3 of the biconvex of weak positive refracting power around; At optical axis AX, there is positive refracting power and convex surface around towards the 4th lens L4 of the crescent shape of picture side; And there is the 5th lens L5 of the concave-concave of negative refracting power around at optical axis AX.Whole lens L1～L5 form by plastic material.Object side in first lens L1 outer rim disposes opening diaphragm AS, disposes shading diaphragm FS1～FS4 between lens L1～L5.In addition, for example between the light entrance face of first lens L1 and object, can configure the parallel flat (not shown) with suitable thickness.

Fig. 9 A～Fig. 9 C shows the various aberration diagrams (spherical aberration, astigmatism, distortion) of the imaging lens system 12 of embodiment 2, and Fig. 9 D and Fig. 9 E show the meridian circle comet aberration of the imaging lens system 12 of embodiment 2.

[embodiment 3]

The data of the lens face of embodiment 3 have been shown in following table 7.

[table 7]

The asphericity coefficient of the lens face of embodiment 3 has been shown in following table 8.

[table 8]

The 3rd

K=1.47480e-001,A4=1.04515e-003,A6=2.95316e-002,A8=-1.86829e-002,

A10=1.41980e-001,A12=2.71552e-001,A14=-7.95221e-001

The 4th

K=-7.99483e+001,A4=5.80536e-002,A6=1.81825e-001,A8=-4.10210e-002,

A10=-8.40595e-001,A12=-7.30528e-001,A14=1.43361e+000

The 6th

K=-6.60749e+000,A4=-5.97711e-002,A6=5.29255e-001,A8=-6.23440e-001,

A10=-1.31327e+000,A12=-2.08274e-001,A14=2.58946e+000

The 7th

K=-1.14724e+001,A3=-1.12259e-002,A4=2.57763e-001,A5=-4.83297e-004,

A6=1.45546e-001,A8=-1.82125e-001,A10=-1.36391e-001,A12=-5.81485e-001,

A14=2.30716e+000

The 9th

K=-4.55854e+001,A3=2.30830e-002,A4=-2.80120e-001,A5=2.28870e-002,

A6=1.81159e-001,A8=-3.15411e-001,A10=3.24543e-002,A12=1.32243e+000,

A14=-9.31916e-001

The 10th

K=0.00000e+000,A3=-9.46971e-003,A4=-2.14743e-001,A5=9.20407e-003,

A6=-6.50931e-002,A8=-5.24340e-002,A10=7.49474e-002,A12=-8.15694e-002,

A14=3.35611e-001

The 12nd

K=8.00000e+001,A3=1.59402e-002,A4=-1.84871e-001,A5=1.92401e-001,

A6=-4.51584e-002,A8=-1.52424e-001,A10=2.33771e-002,A12=-1.28497e-002,

A14=6.74671e-003

The 13rd

K=-6.34165e+000,A3=-1.10605e-001,A4=-1.92237e-001,A5=2.06471e-001,

A6=2.16975e-001,A8=-2.15661e-001,A10=-3.21936e-004,A12=5.16124e-002,

A14=-1.43832e-002

The 15th

K=-2.93727e+001,A3=-2.80532e-001,A4=5.79384e-002,A5=3.71281e-002,

A6=2.57055e-002,A8=-5.68002e-003,A10=-1.36961e-003,A12=3.79139e-004,

A14=-1.34765e-005

The 16th

K=-1.01879e+001,A3=-1.41822e-001,A4=1.63801e-003,A5=1.79960e-002,

A6=1.39980e-003,A8=-7.56292e-003,A10=1.11976e-003,A12=-1.43529e-004,

A14=5.71170e-005

Below enumerate the characteristic of the imaging lens system of embodiment 3.

The data of the single lens of embodiment 3 have been shown in following table 9.

[table 9]

Figure 10 is the cut-open view of imaging lens system 13 grades of embodiment 3.Imaging lens system 13 possesses successively in order from object side: at optical axis AX, have positive refracting power and convex surface around towards the first lens L1 of the crescent shape that approaches plano-convex of object side; At optical axis AX, there is negative refracting power and convex surface around towards the second lens L2 of the crescent shape of object side; At optical axis AX, there is weak positive refracting power and convex surface around towards the 3rd lens L3 of the crescent shape that approaches plano-convex of object side; At optical axis AX, there is positive refracting power and convex surface around towards the 4th lens L4 of the crescent shape of picture side; And there is the 5th lens L5 of the concave-concave of negative refracting power around at optical axis AX.Whole lens L1～L5 form by plastic material.Object side in first lens L1 outer rim disposes opening diaphragm AS, disposes shading diaphragm FS1～FS4 between lens L1～L5.In addition, between the light entrance face of first lens L1 and object, can configure the parallel flat (not shown) with suitable thickness.

Figure 11 A～Figure 11 C shows the various aberration diagrams (spherical aberration, astigmatism, distortion) of the imaging lens system 13 of embodiment 3, and Figure 11 D and Figure 11 E show the meridian circle comet aberration of the imaging lens system 13 of embodiment 3.

[embodiment 4]

The data of the lens face of embodiment 4 have been shown in following table 10.

[table 10]

The asphericity coefficient of the lens face of embodiment 4 has been shown in following table 11.

[table 11]

The 3rd

K=1.10299e-001,A4=-3.39380e-003,A6=2.23003e-002,A8=-4.41132e-002,

A10=1.70926e-001,A12=2.85631e-001,A14=-1.13326e+000

The 4th

K=-9.00015e+000,A4=-1.01044e-001,A6=1.90260e-001,A8=8.61906e-002,

A10=-8.45572e-001,A12=-8.49506e-001,A14=1.25800e+000

The 6th

K=-8.00000e+001,A4=-2.00497e-001,A6=8.04783e-001,A8=-5.66586e-001,

A10=-1.30545e+000,A12=-2.31335e-001,A14=2.62809e+000

The 7th

K=-2.55778e+001,A3=-2.68325e-002,A4=1.44042e-001,A5=-8.62086e-002,

A6=6.98178e-001,A8=7.65233e-002,A10=-8.38070e-001,A12=-1.79892e+000,

A14=6.44753e+000

The 9th

K=6.63575e+001,A3=3.99888e-002,A4=-5.35096e-001,A5=2.95583e-001,

A6=5.46281e-002,A8=-4.76873e-001,A10=-2.83816e-002,A12=1.67767e+000,

A14=-6.99744e-001

The 10th

K=0.00000e+000,A3=-4.62109e-002,A4=-2.23323e-001,A5=-1.40436e-001,

A6=4.45953e-002,A8=2.17462e-002,A10=-1.53388e-001,A12=-2.09305e-001,

A14=8.94827e-001

The 12nd

K=-8.00000e+001,A3=8.46161e-002,A4=-4.83553e-001,A5=6.37436e-001,

A6=-3.32099e-001,A8=-1.87488e-001,A10=1.02904e-001,A12=-2.10188e-002,

A14=-1.62025e-002

The 13rd

K=-1.38506e+001,A3=-1.42349e-001,A4=-2.67286e-001,A5=2.81072e-001,

A6=2.51093e-001,A8=-2.55396e-001,A10=-4.00905e-003,A12=6.36045e-002,

A14=-1.76956e-002

The 15th

K=-6.59063e+000,A3=-4.40231e-001,A4=1.69737e-001,A5=7.03154e-002,

A6=1.65110e-002,A8=-1.44881e-002,A10=-1.27943e-003,A12=1.12403e-003,

A14=-1.20740e-004

The 16th

K=-2.71386e+001,A3=-1.11918e-001,A4=-2.24122e-002,A5=3.36211e-002,

A6=-2.03731e-004,A8=-8.02988e-003,A10=1.03563e-003,A12=-3.09226e-004,

A14=1.08460e-004

Below enumerate the characteristic of the imaging lens system of embodiment 4.

The data of the single lens of embodiment 4 have been shown in following table 12.

[table 12]

Figure 12 is the cut-open view of imaging lens system 14 grades of embodiment 4.Imaging lens system 14 possesses successively in order from object side: at optical axis AX, have positive refracting power and convex surface around towards the first lens L1 of the crescent shape of object side; At optical axis AX, there is negative refracting power and convex surface around towards the second lens L2 of the crescent shape of object side; At optical axis AX, there is weak positive refracting power and convex surface around towards the 3rd lens L3 of the crescent shape of object side; At optical axis AX, there is positive refracting power and convex surface around towards the 4th lens L4 of the crescent shape of picture side; And there is the 5th lens L5 of the concave-concave of negative refracting power around at optical axis AX.Whole lens L1～L5 form by plastic material.Object side in first lens L1 outer rim disposes opening diaphragm AS, disposes shading diaphragm FS1～FS4 between lens L1～L5.In addition, between the light entrance face of first lens L1 and object, can configure the parallel flat (not shown) with suitable thickness.

Figure 13 A～Figure 13 C shows the various aberration diagrams (spherical aberration, astigmatism, distortion) of the imaging lens system 14 of embodiment 4, and Figure 13 D and Figure 13 E show the meridian circle comet aberration of the imaging lens system 14 of embodiment 4.

[embodiment 5]

The data of the lens face of embodiment 5 have been shown in following table 13.

[table 13]

The asphericity coefficient of the lens face of embodiment 5 has been shown in following table 14.

[table 14]

The 3rd

K=7.84081e-002,A4=9.93435e-003,A6=5.02035e-002,A8=-1.94121e-002,

A10=2.45608e-001,A12=3.53437e-001,A14=-1.31664e+000

The 4th

K=-8.00000e+001,A4=7.85845e-002,A6=2.06196e-001,A8=4.53534e-002,

A10=-1.38523e+000,A12=-1.49706e+000,A14=3.20190e+000

The 6th

K=-1.53489e+001,A4=-7.82755e-002,A6=7.62915e-001,A8=-9.32301e-001,

A10=-2.11519e+000,A12=-4.62527e-001,A14=5.13072e+000

The 7th

K=-9.25340e+000,A3=-9.17026e-003,A4=2.41073e-001,A5=-2.55538e-003,

A6=3.25291e-001,A8=-1.95887e-001,A10=-5.22547e-001,A12=-1.44253e+000,

A14=6.01197e+000

The 9th

K=7.96983e+001,A3=2.20811e-002,A4=-3.47438e-001,A5=6.77792e-003,

A6=3.36281e-001,A8=-6.74153e-001,A10=6.01068e-002,A12=3.07337e+000,

A14=-2.20975e+000

The 10th

K=0.00000e+000,A3=-2.08223e-002,A4=-2.00238e-001,A5=-4.57015e-003,

A6=-1.47530e-001,A8=7.91072e-002,A10=1.57376e-001,A12=-4.74293e-001,

A14=7.31079e-001

The 12nd

K=6.56470e+001,A3=5.38590e-002,A4=-2.78523e-001,A5=2.38887e-001,

A6=4.62587e-002,A8=-3.31257e-001,A10=2.03204e-001,A12=-1.31271e-001,

A14=5.80562e-002

The 13rd

K=-6.13979e+000,A3=-9.78081e-002,A4=-2.61925e-001,A5=2.29911e-001,

A6=3.46688e-001,A8=-2.90986e-001,A10=-3.60164e-002,A12=1.04591e-001,

A14=-3.00530e-002

The 15th

K=-2.13485e+000,A3=-3.35603e-001,A4=1.07428e-001,A5=5.73446e-002,

A6=3.17956e-002,A8=-1.41488e-002,A10=-2.24613e-003,A12=1.25247e-003,

A14=-1.13676e-004

The 16th

K=-8.28042e+000,A3=-1.88368e-001,A4=1.28782e-002,A5=3.66406e-002,

A6=-2.03155e-003,A8=-1.19453e-002,A10=2.47955e-003,A12=-3.84405e-004,

A14=9.81768e-005

Below enumerate the characteristic of the imaging lens system of embodiment 5.

The data of the single lens of embodiment 5 have been shown in following table 15.

[table 15]

Figure 14 is the cut-open view of imaging lens system 15 grades of embodiment 5.Imaging lens system 15 possesses successively in order from object side: at optical axis AX, have positive refracting power and convex surface around towards the first lens L1 of the crescent shape that approaches plano-convex of object side; At optical axis AX, there is negative refracting power and convex surface around towards the second lens L2 of the crescent shape of object side; At optical axis AX, there is the 3rd lens L3 of the biconvex of weak positive refracting power around; At optical axis AX, there is positive refracting power and convex surface around towards the 4th lens L4 of the crescent shape of picture side; And there is the 5th lens L5 of the concave-concave of negative refracting power around at optical axis AX.Whole lens L1～L5 form by plastic material.Object side in first lens L1 outer rim disposes opening diaphragm AS, disposes shading diaphragm FS1～FS4 between lens L1～L5.In addition, between the light entrance face of first lens L1 and object, can configure the parallel flat (not shown) with suitable thickness.

Figure 15 A～Figure 15 C shows the various aberration diagrams (spherical aberration, astigmatism, distortion) of the imaging lens system 15 of embodiment 5, and Figure 15 D and Figure 15 E show the meridian circle comet aberration of the imaging lens system 15 of embodiment 5.

[embodiment 6]

The data of the lens face of embodiment 6 have been shown in following table 16.

[table 16]

The asphericity coefficient of the lens face of embodiment 6 has been shown in following table 17.

[table 17]

The 3rd

K=1.21290e-001,A4=-1.49903e-003,A6=1.33334e-002,A8=-4.33107e-002,

A10=2.16027e-001,A12=3.38126e-001,A14=-1.41801e+000

The 4th

K=-1.04717e+001,A4=-9.76509e-002,A6=1.59010e-001,A8=3.52279e-002,

A10=-9.07208e-001,A12=-8.79511e-001,A14=1.47782e+000

The 6th

K=4.36610e+001,A4=-2.47532e-001,A6=8.01999e-001,A8=-5.46508e-001,

A10=-1.26540e+000,A12=-2.08019e-001,A14=2.60728e+000

The 7th

K=-3.77141e+001,A3=-3.13620e-002,A4=1.30673e-001,A5=-1.39496e-001,

A6=7.72279e-001,A8=1.73317e-001,A10=-9.30219e-001,A12=-1.43446e+000,

A14=6.76378e+000

The 9th

K=6.07439e+001,A3=1.35158e-002,A4=-5.39965e-001,A5=3.55907e-001,

A6=-2.53014e-002,A8=-6.22612e-001,A10=8.99588e-002,A12=1.92217e+000,

A14=-5.15803e-001

The 10th

K=0.00000e+000,A3=-8.83745e-002,A4=-1.13863e-001,A5=-2.61967e-001,

A6=-5.79583e-002,A8=4.14062e-001,A10=-5.38189e-001,A12=-4.86152e-001,

A14=1.50747e+000

The 12nd

K=7.78913e+001,A3=8.45664e-002,A4=-5.15185e-001,A5=7.55778e-001,

A6=-4.18822e-001,A8=-2.82097e-001,A10=3.69393e-001,A12=-3.01062e-001,

A14=9.03289e-002

The 13rd

K=-1.38907e+001,A3=-1.51705e-001,A4=-2.88317e-001,A5=3.42307e-001,

A6=2.50399e-001,A8=-3.02840e-001,A10=-4.93657e-003,A12=9.04695e-002,

A14=-2.74247e-002

The 15th

K=-1.05030e+001,A3=-4.63212e-001,A4=1.84018e-001,A5=7.36419e-002,

A6=1.41465e-002,A8=-1.54696e-002,A10=-1.22309e-003,A12=1.19974e-003,

A14=-1.30805e-004

The 16th

K=-2.68865e+001,A3=-1.11785e-001,A4=-2.23509e-002,A5=3.36505e-002,

A6=-1.88869e-004,A8=-8.02602e-003,A10=1.03664e-003,A12=-3.08961e-004,

A14=1.08525e-004

Below enumerate the characteristic of the imaging lens system of embodiment 6.

The data of the single lens of embodiment 6 have been shown in following table 18.

[table 18]

Figure 16 is the cut-open view of imaging lens system 16 grades of embodiment 6.Imaging lens system 16 possesses successively in order from object side: at optical axis AX, have positive refracting power and convex surface around towards the first lens L1 of the crescent shape of object side; At optical axis AX, there is negative refracting power and convex surface around towards the second lens L2 of the crescent shape of object side; At optical axis AX, there is weak positive refracting power and convex surface around towards the 3rd lens L3 of the crescent shape of object side; At optical axis AX, there is positive refracting power and convex surface around towards the 4th lens L4 of the crescent shape of picture side; And there is the 5th lens L5 of the concave-concave of negative refracting power around at optical axis AX.Whole lens L1～L5 form by plastic material.Object side in first lens L1 outer rim disposes opening diaphragm AS, disposes shading diaphragm FS1～FS4 between lens L1～L5.In addition, between the light entrance face of first lens L1 and object, can configure the parallel flat (not shown) with suitable thickness.

Figure 17 A～Figure 17 C shows the various aberration diagrams (spherical aberration, astigmatism, distortion) of the imaging lens system 16 of embodiment 6, and Figure 17 D and Figure 17 E show the meridian circle comet aberration of the imaging lens system 16 of embodiment 6.

[embodiment 7]

The data of the lens face of embodiment 7 have been shown in following table 19.

[table 19]

The asphericity coefficient of the lens face of embodiment 7 has been shown in following table 20.

[table 20]

The 3rd

K=5.21930e-002,A4=-3.12446e-002,A6=3.77245e-001,A8=-1.28331e+000,

A10=2.29492e+000,A12=4.34645e-001,A14=-1.40784e+000

The 4th

K=-8.00000e+001,A4=-3.03041e-001,A6=1.82539e+000,A8=-3.14746e+000,

A10=7.18971e-002,A12=8.20605e+000,A14=-1.02407e+001

The 6th

K=-8.00000e+001,A4=-2.81974e-001,A6=1.72586e+000,A8=-1.44494e+000,

A10=-7.64125e+000,A12=1.77489e+001,A14=-1.73755e+001

The 7th

K=-1.07676e+001,A4=3.25628e-002,A6=1.61839e+000,A8=-2.74931e+000,

A10=6.41592e+000,A12=-2.12222e+001,A14=3.13853e+001

The 9th

K=3.72358e+000,A4=-3.29222e-001,A6=1.23503e-001,A8=1.80994e+000,

A10=-3.86685e+000,A12=6.22366e-001,A14=3.83345e+001,A16=-5.53900e+001

The 10th

K=8.00000e+001,A4=-1.67761e-001,A6=-7.37376e-001,A8=3.11210e+000,

A10=-5.00410e+000,A12=1.86447e+000,A14=7.63368e+000

The 12nd

K=-1.70918e+001,A4=1.44682e-001,A6=-1.68005e+000,A8=5.69642e+000,

A10=-1.87443e+001,A12=3.58991e+001,A14=-3.83571e+001,A16=1.57268e+001

The 13rd

K=1.83911e+000,A4=-3.31564e-001,A6=1.92382e+000,A8=-5.69702e+000,

A10=8.90891e+000,A12=-8.02703e+000,A14=3.87798e+000,A16=-7.71205e-001

The 15th

K=-3.97848e+001,A4=-3.59014e-001,A6=2.64856e-001,A8=-7.17287e-002,

A10=1.04882e-003,A12=3.70112e-003,A14=-7.69582e-004,A16=5.03311e-005

The 16th

K=-7.28644e+000,A4=-2.23101e-001,A6=1.18034e-001,A8=-3.67353e-002,

A10=5.12364e-003,A12=1.18093e-004,A14=-6.68772e-005

Below enumerate the characteristic of the imaging lens system of embodiment 7.

The data of the single lens of embodiment 7 have been shown in following table 21.

[table 21]

Figure 18 is the cut-open view of imaging lens system 17 grades of embodiment 7.Imaging lens system 17 possesses successively in order from object side: at optical axis AX, have positive refracting power and convex surface around towards the first lens L1 of the crescent shape of object side; At optical axis AX, there is negative refracting power and convex surface around towards the second lens L2 of the crescent shape of object side; At optical axis AX, there is the 3rd lens L3 of the biconvex of positive refracting power around; At optical axis AX, there is weak positive refracting power and convex surface around towards the 4th lens L4 of the crescent shape of picture side; And there is negative refracting power and convex surface around towards the 5th lens L5 of object side at optical axis AX.Whole lens L1～L5 form by plastic material.Object side in first lens L1 outer rim disposes opening diaphragm AS, disposes shading diaphragm FS1～FS4 between lens L1～L5.In addition, between the light entrance face of first lens L1 and object, can configure the parallel flat (not shown) with suitable thickness.

Figure 19 A～Figure 19 C shows the various aberration diagrams (spherical aberration, astigmatism, distortion) of the imaging lens system 17 of embodiment 7, and Figure 19 D and Figure 19 E show the meridian circle comet aberration of the imaging lens system 17 of embodiment 7.

[embodiment 8]

The data of the lens face of embodiment 8 have been shown in following table 22.

[table 22]

The asphericity coefficient of the lens face of embodiment 8 has been shown in following table 23.

[table 23]

The 3rd

K=1.20295e-001,A4=6.16800e-003,A6=2.76128e-002,A8=-3.96066e-002,

A10=1.84881e-001,A12=3.57419e-001,A14=-8.81536e-001

The 4th

K=-8.00000e+001,A4=5.55389e-002,A6=1.80024e-001,A8=4.46350e-003,

A10=-6.87161e-001,A12=-8.75790e-001,A14=8.08143e-001

The 6th

K=1.32066e+001,A4=-4.95968e-002,A6=5.56985e-001,A8=-6.42766e-001,

A10=-1.16447e+000,A12=-4.63545e-001,A14=1.85764e+000

The 7th

K=-1.07421e+001,A3=-1.05703e-002,A4=2.39385e-001,A5=-6.04010e-003,

A6=1.93047e-001,A8=-8.57504e-002,A10=-3.35227e-001,A12=-1.03234e+000,

A14=2.96635e+000

The 9th

K=-7.97371e+001,A3=1.67912e-002,A4=-2.77390e-001,A5=1.92700e-002,

A6=1.69485e-001,A8=-3.02528e-001,A10=6.12083e-002,A12=1.37218e+000,

A14=-9.78111e-001

The 10th

K=0.00000e+000,A3=-5.63340e-003,A4=-1.91253e-001,A5=1.64110e-003,

A6=-6.40458e-002,A8=-1.82102e-002,A10=8.73276e-002,A12=-1.21725e-001,

A14=2.96975e-001

The 12nd

K=2.29161e+001,A3=3.99084e-002,A4=-1.95641e-001,A5=1.86176e-001,

A6=-1.76248e-002,A8=-1.32199e-001,A10=1.87856e-002,A12=-1.86391e-002,

A14=2.32222e-002

The 13rd

K=-6.38388e+000,A3=-1.05440e-001,A4=-2.20541e-001,A5=2.04086e-001,

A6=2.31088e-001,A8=-2.05007e-001,A10=-2.63676e-004,A12=4.99831e-002,

A14=-1.46342e-002

The 15th

K=-2.26757e+001,A3=-2.86183e-001,A4=5.81917e-002,A5=3.75230e-002,

A6=2.60152e-002,A8=-5.73625e-003,A10=-1.44745e-003,A12=3.59149e-004,

A14=-8.91027e-006

The 16th

K=-8.30202e+000,A3=-1.52265e-001,A4=-1.20981e-003,A5=2.02348e-002,

A6=3.52404e-003,A8=-7.10145e-003,A10=1.12607e-003,A12=-1.67122e-004,

A14=4.35180e-005

Below enumerate the characteristic of the imaging lens system of embodiment 8.

The data of the single lens of embodiment 8 have been shown in following table 24.

[table 24]

Figure 20 is the cut-open view of imaging lens system 18 grades of embodiment 8.Imaging lens system 18 possesses successively in order from object side: at optical axis AX, have positive refracting power and convex surface around towards the first lens L1 of the crescent shape that approaches plano-convex of object side; At optical axis AX, there is negative refracting power and convex surface around towards the second lens L2 of the crescent shape of object side; At optical axis AX, around there is weak positive refracting power and approach the 3rd lens L3 of the biconvex of plano-convex; At optical axis AX, there is positive refracting power and convex surface around towards the 4th lens L4 of the crescent shape of picture side; And there is the 5th lens L5 of the concave-concave of negative refracting power around at optical axis AX.Whole lens L1～L5 form by plastic material.Object side in first lens L1 outer rim disposes opening diaphragm AS, disposes shading diaphragm FS1～FS4 between lens L1～L5.In addition, between the light entrance face of first lens L1 and object, can configure the parallel flat (not shown) with suitable thickness.

Figure 21 A～Figure 21 C shows the various aberration diagrams (spherical aberration, astigmatism, distortion) of the imaging lens system 18 of embodiment 8, and Figure 21 D and Figure 21 E show the meridian circle comet aberration of the imaging lens system 18 of embodiment 8.

[embodiment 9]

The data of the lens face of embodiment 9 have been shown in following table 25.

[table 25]

The asphericity coefficient of the lens face of embodiment 9 has been shown in following table 26.

[table 26]

The 3rd

K=1.65605e-001,A4=3.61906e-003,A6=4.36315e-002,A8=-1.57384e-002,

A10=1.02711e-001,A12=2.47709e-001,A14=-5.83285e-001

The 4th

K=4.79357e+001,A4=3.49458e-002,A6=1.99697e-001,A8=-3.78603e-002,

A10=-8.64884e-001,A12=-6.65126e-001,A14=1.29339e+000

The 6th

K=-1.75024e+001,A4=-6.64731e-002,A6=5.18340e-001,A8=-6.28869e-001,

A10=-1.28897e+000,A12=-2.91440e-001,A14=2.39925e+000

The 7th

K=-1.25339e+001,A3=-1.02502e-002,A4=2.41013e-001,A5=-1.92972e-002,

A6=1.50347e-001,A8=-1.32301e-001,A10=-1.73824e-001,A12=-7.84626e-001,

A14=2.31611e+000

The 9th

K=7.87455e+001,A3=2.13662e-002,A4=-2.64424e-001,A5=4.31536e-002,

A6=1.94179e-001,A8=-3.56681e-001,A10=7.55450e-003,A12=1.39057e+000,

A14=-9.99263e-001

The 10th

K=0.00000e+000,A3=4.27274e-003,A4=-1.99631e-001,A5=1.95959e-002,

A6=-4.78733e-002,A8=-2.82396e-002,A10=5.11762e-002,A12=-1.56334e-001,

A14=2.80023e-001

The 12nd

K=8.00000e+001,A3=1.15230e-002,A4=-1.67036e-001,A5=1.91749e-001,

A6=-4.34239e-002,A8=-1.28518e-001,A10=3.57291e-002,A12=-2.15044e-002,

A14=6.16414e-003

The 13rd

K=-7.16497e+000,A3=-1.11747e-001,A4=-2.15856e-001,A5=2.11437e-001,

A6=2.28751e-001,A8=-2.13686e-001,A10=-3.57533e-003,A12=4.98259e-002,

A14=-1.31995e-002

The 15th

K=-6.21590e+000,A3=-2.93486e-001,A4=5.75560e-002,A5=3.82550e-002,

A6=2.65373e-002,A8=-5.58032e-003,A10=-1.39291e-003,A12=3.68472e-004,

A14=-1.47305e-005

The 16th

K=-7.67944e+000,A3=-1.49614e-001,A4=3.22630e-003,A5=2.27089e-002,

A6=3.84221e-003,A8=-7.29774e-003,A10=1.09160e-003,A12=-1.79002e-004,

A14=4.02598e-005

Below enumerate the characteristic of the imaging lens system of embodiment 9.

The data of the single lens of embodiment 9 have been shown in following table 27.

[table 27]

Figure 22 is the cut-open view of imaging lens system 19 grades of embodiment 9.Imaging lens system 19 possesses successively in order from object side: at optical axis AX, have positive refracting power and convex surface around towards the first lens L1 of the crescent shape that approaches plano-convex of object side; At optical axis AX, there is negative refracting power and convex surface around towards the second lens L2 of the crescent shape of object side; At optical axis AX, there is the 3rd lens L3 of the biconvex of weak positive refracting power around; At optical axis AX, there is positive refracting power and convex surface around towards the 4th lens L4 of the crescent shape of picture side; And there is the 5th lens L5 of the concave-concave of negative refracting power around at optical axis AX.Whole lens L1～L5 form by plastic material.Object side in first lens L1 outer rim disposes opening diaphragm AS, disposes shading diaphragm FS1～FS4 between lens L1～L5.In addition, between the light entrance face of first lens L1 and object, can configure the parallel flat (not shown) with suitable thickness.

Figure 23 A～Figure 23 C shows the various aberration diagrams (spherical aberration, astigmatism, distortion) of the imaging lens system 19 of embodiment 9, and Figure 23 D and Figure 23 E show the meridian circle comet aberration of the imaging lens system 19 of embodiment 9.

[embodiment 10]

The data of the lens face of embodiment 10 have been shown in following table 28.

[table 28]

The asphericity coefficient of the lens face of embodiment 10 has been shown in following table 29.

[table 29]

The 3rd

K=1.81186e-001,A4=3.65870e-003,A6=3.84232e-002,A8=-7.21256e-003,

A10=1.27685e-001,A12=2.04392e-001,A14=-5.80359e-001

The 4th

K=-8.00000e+001,A4=4.96842e-002,A6=1.86386e-001,A8=-4.08928e-002,

A10=-8.10326e-001,A12=-7.50600e-001,A14=1.24143e+000

The 6th

K=-7.80092e+000,A4=-5.78315e-002,A6=5.17687e-001,A8=-6.61975e-001,

A10=-1.35701e+000,A12=-2.98599e-001,A14=2.50296e+000

The 7th

K=-1.19856e+001,A3=-1.09011e-002,A4=2.47172e-001,A5=-8.12739e-003,

A6=1.42920e-001,A8=-2.06168e-001,A10=-1.72406e-001,A12=-6.42208e-001,

A14=2.22553e+000

The 9th

K=3.54960e+001,A3=1.99253e-002,A4=-2.66088e-001,A5=2.67058e-002,

A6=1.77045e-001,A8=-2.91841e-001,A10=4.29514e-002,A12=1.27149e+000,

A14=-9.27161e-001

The 10th

K=0.00000e+000,A3=4.68017e-003,A4=-2.08181e-001,A5=1.07090e-002,

A6=-4.99054e-002,A8=-3.84997e-002,A10=4.87092e-002,A12=-1.41733e-001,

A14=3.08691e-001

The 12nd

K=-3.86361e+000,A3=1.47090e-002,A4=-1.74774e-001,A5=1.78708e-001,

A6=-2.79723e-002,A8=-1.35021e-001,A10=2.00946e-002,A12=-1.82953e-002,

A14=1.93419e-002

The 13rd

K=-5.99262e+000,A3=-9.69289e-002,A4=-2.30521e-001,A5=2.03870e-001,

A6=2.32404e-001,A8=-2.05222e-001,A10=-5.94090e-004,A12=4.98640e-002,

A14=-1.45229e-002

The 15th

K=-1.20002e+001,A3=-2.90725e-001,A4=5.71077e-002,A5=3.73634e-002,

A6=2.61779e-002,A8=-5.61240e-003,A10=-1.41856e-003,A12=3.60904e-004,

A14=-1.06104e-005

The 16th

K=-7.67406e+000,A3=-1.50813e-001,A4=-1.32323e-003,A5=2.06386e-002,

A6=3.77779e-003,A8=-7.10843e-003,A10=1.10827e-003,A12=-1.71389e-004,

A14=4.31275e-005

Below enumerate the characteristic of the imaging lens system of embodiment 10.

The data of the single lens of embodiment 10 have been shown in following table 30.

[table 30]

Figure 24 is the cut-open view of imaging lens system 20 grades of embodiment 10.Imaging lens system 20 possesses successively in order from object side: at optical axis AX, have positive refracting power and convex surface around towards the first lens L1 of the crescent shape that approaches plano-convex of object side; At optical axis AX, there is negative refracting power and convex surface around towards the second lens L2 of the crescent shape of object side; At optical axis AX, around there is weak positive refracting power and approach the 3rd lens L3 of the biconvex of plano-convex; At optical axis AX, there is positive refracting power and convex surface around towards the 4th lens L4 of the crescent shape that approaches plano-convex as side; And there is the 5th lens L5 of the concave-concave of negative refracting power around at optical axis AX.Whole lens L1～L5 form by plastic material.Object side in first lens L1 outer rim disposes opening diaphragm AS, disposes shading diaphragm FS1～FS4 between lens L1～L5.In addition, between the light entrance face of first lens L1 and object, can configure the parallel flat (not shown) with suitable thickness.

Figure 25 A～Figure 25 C shows the various aberration diagrams (spherical aberration, astigmatism, distortion) of the imaging lens system 20 of embodiment 10, and Figure 25 D and Figure 25 E show the meridian circle comet aberration of the imaging lens system 20 of embodiment 10.

[embodiment 11]

The data of the lens face of embodiment 11 have been shown in following table 31.

[table 31]

The asphericity coefficient of the lens face of embodiment 11 has been shown in following table 32.

[table 32]

The 3rd

K=1.62514e-001,A4=-7.52076e-004,A6=3.37897e-002,A8=-1.80567e-003,

A10=1.35138e-001,A12=1.79917e-001,A14=-6.14906e-001

The 4th

K=-1.93893e+001,A4=3.64287e-002,A6=2.06678e-001,A8=-1.72634e-002,

A10=-8.06664e-001,A12=-7.84791e-001,A14=1.28369e+000

The 6th

K=-1.36249e+001,A4=-6.00620e-002,A6=5.24406e-001,A8=-6.25272e-001,

A10=-1.27145e+000,A12=-2.59455e-001,A14=2.29861e+000

The 7th

K=-1.08493e+001,A3=-1.13378e-002,A4=2.46517e-001,A5=-7.24915e-003,

A6=1.68185e-001,A8=-1.70461e-001,A10=-2.25080e-001,A12=-6.89990e-001,

A14=2.49819e+000

The 9th

K=6.49613e+001,A3=2.18102e-002,A4=-2.67104e-001,A5=3.35979e-002,

A6=1.77607e-001,A8=-3.06326e-001,A10=4.11017e-002,A12=1.28422e+000,

A14=-9.37410e-001

The 10th

K=0.00000e+000,A3=2.29342e-003,A4=-1.94818e-001,A5=3.95656e-003,

A6=-5.44664e-002,A8=-1.67865e-002,A10=7.37540e-002,A12=-1.37942e-001,

A14=2.84996e-001

The 12nd

K=2.03388e+001,A3=2.82294e-002,A4=-1.91519e-001,A5=1.79580e-001,

A6=-3.13825e-002,A8=-1.36388e-001,A10=2.94443e-002,A12=-1.53523e-002,

A14=8.76988e-003

The 13rd

K=-6.33003e+000,A3=-8.67018e-002,A4=-2.32007e-001,A5=1.97556e-001,

A6=2.28295e-001,A8=-2.04657e-001,A10=4.70833e-004,A12=5.02009e-002,

A14=-1.48362e-002

The 15th

K=-2.05412e+001,A3=-2.84691e-001,A4=6.20746e-002,A5=3.88166e-002,

A6=2.60335e-002,A8=-6.03905e-003,A10=-1.54069e-003,A12=3.52253e-004,

A14=-9.27258e-007

The 16th

K=-1.03289e+001,A3=-1.37143e-001,A4=-3.45953e-003,A5=1.98158e-002,

A6=3.63446e-003,A8=-7.05510e-003,A10=1.10421e-003,A12=-1.78287e-004,

A14=4.28619e-005

Below enumerate the characteristic of the imaging lens system of embodiment 11.

The data of the single lens of embodiment 11 have been shown in following table 33.

[table 33]

Figure 26 is the cut-open view of imaging lens system 21 grades of embodiment 11.Imaging lens system 21 possesses successively in order from object side: at optical axis AX, have positive refracting power and convex surface around towards the first lens L1 of the crescent shape that approaches plano-convex of object side; At optical axis AX, there is negative refracting power and convex surface around towards the second lens L2 of the crescent shape of object side; At optical axis AX, there is the 3rd lens L3 of the biconvex of weak positive refracting power around; At optical axis AX, there is positive refracting power and convex surface around towards the 4th lens L4 of the crescent shape of picture side; And there is the 5th lens L5 of the concave-concave of negative refracting power around at optical axis AX.Whole lens L1～L5 form by plastic material.Object side in first lens L1 outer rim disposes opening diaphragm AS, disposes shading diaphragm FS1～FS4 between lens L1～L5.In addition, between the light entrance face of first lens L1 and object, can configure the parallel flat (not shown) with suitable thickness.

Figure 27 A～Figure 27 C shows the various aberration diagrams (spherical aberration, astigmatism, distortion) of the imaging lens system 21 of embodiment 11, and Figure 27 D and Figure 27 E show the meridian circle comet aberration of the imaging lens system 21 of embodiment 11.

[embodiment 12]

The data of the lens face of embodiment 12 have been shown in following table 34.

[table 34]

The asphericity coefficient of the lens face of embodiment 12 has been shown in following table 35.

[table 35]

The 3rd

K=1.62514e-001,A4=-7.52076e-004,A6=3.37897e-002,A8=-1.80567e-003,

A10=1.35138e-001,A12=1.79917e-001,A14=-6.14906e-001

The 4th

K=-1.93893e+001,A4=3.64287e-002,A6=2.06678e-001,A8=-1.72634e-002,

A10=-8.06664e-001,A12=-7.84791e-001,A14=1.28369e+000

The 6th

K=-1.36249e+001,A4=-6.00620e-002,A6=5.24406e-001,A8=-6.25272e-001,

A10=-1.27145e+000,A12=-2.59455e-001,A14=2.29861e+000

The 7th

K=-1.08493e+001,A3=-1.13378e-002,A4=2.46517e-001,A5=-7.24915e-003,

A6=1.68185e-001,A8=-1.70461e-001,A10=-2.25080e-001,A12=-6.89990e-001,

A14=2.49819e+000

The 9th

K=6.49613e+001,A3=2.18102e-002,A4=-2.67104e-001,A5=3.35979e-002,

A6=1.77607e-001,A8=-3.06326e-001,A10=4.11017e-002,A12=1.28422e+000,

A14=-9.37410e-001

The 10th

K=0.00000e+000,A3=2.29342e-003,A4=-1.94818e-001,A5=3.95656e-003,

A6=-5.44664e-002,A8=-1.67865e-002,A10=7.37540e-002,A12=-1.37942e-001,

A14=2.84996e-001

The 12nd

K=2.03388e+001,A3=2.82294e-002,A4=-1.91519e-001,A5=1.79580e-001,

A6=-3.13825e-002,A8=-1.36388e-001,A10=2.94443e-002,A12=-1.53523e-002,

A14=8.76988e-003

The 13rd

K=-6.33003e+000,A3=-8.67018e-002,A4=-2.32007e-001,A5=1.97556e-001,

A6=2.28295e-001,A8=-2.04657e-001,A10=4.70833e-004,A12=5.02009e-002,

A14=-1.48362e-002

The 15th

K=-2.05412e+001,A3=-2.84691e-001,A4=6.20746e-002,A5=3.88166e-002,

A6=2.60335e-002,A8=-6.03905e-003,A10=-1.54069e-003,A12=3.52253e-004,

A14=-9.27258e-007

The 16th

K=-1.03289e+001,A3=-1.37143e-001,A4=-3.45953e-003,A5=1.98158e-002,

A6=3.63446e-003,A8=-7.05510e-003,A10=1.10421e-003,A12=-1.78287e-004,

A14=4.28619e-005

Below enumerate the characteristic of the imaging lens system of embodiment 12.

The data of the single lens of embodiment 12 have been shown in following table 36.

[table 36]

Figure 28 is the cut-open view of imaging lens system 22 grades of embodiment 12.Imaging lens system 22 possesses successively in order from object side: at optical axis AX, have positive refracting power and convex surface around towards the first lens L1 of the crescent shape that approaches plano-convex of object side; At optical axis AX, there is negative refracting power and convex surface around towards the second lens L2 of the crescent shape of object side; At optical axis AX, there is the 3rd lens L3 of the biconvex of weak positive refracting power around; At optical axis AX, there is positive refracting power and convex surface around towards the 4th lens L4 of the crescent shape of picture side; And there is the 5th lens L5 of the concave-concave of negative refracting power around at optical axis AX.Whole lens L1～L5 form by plastic material.Object side in first lens L1 outer rim disposes opening diaphragm AS, disposes shading diaphragm FS1～FS4 between lens L1～L5.In addition, between the light entrance face of first lens L1 and object, can configure the parallel flat (not shown) with suitable thickness.

Figure 29 A～Figure 29 C shows the various aberration diagrams (spherical aberration, astigmatism, distortion) of the imaging lens system 22 of embodiment 12, and Figure 29 D and Figure 29 E show the meridian circle comet aberration of the imaging lens system 22 of embodiment 12.

[embodiment 13]

The data of the lens face of embodiment 13 have been shown in following table 37.

[table 37]

The asphericity coefficient of the lens face of embodiment 13 has been shown in following table 38.

[table 38]

K=2.02519e-001,A4=-4.12703e-003,A6=3.50029e-002,A8=-8.53752e-004,

A10=1.06591e-001,A12=1.88864e-001,A14=-3.63334e-001

The 4th

K=1.07858e+001,A4=-2.23728e-002,A6=1.89132e-001,A8=1.21639e-001,

A10=-4.51691e-001,A12=-4.98517e-001,A14=-1.60631e-001

The 6th

K=-7.02254e+001,A4=-1.10347e-001,A6=5.60675e-001,A8=-4.55026e-001,

A10=-1.06523e+000,A12=-4.97676e-001,A14=7.89701e-001

The 7th

K=-2.57603e+001,A3=-3.72850e-003,A4=1.91204e-001,A5=-4.23794e-002,

A6=1.95713e-001,A8=-8.32246e-002,A10=-2.90752e-001,A12=-1.01859e+000,

A14=1.68623e+000

The 9th

K=-7.16430e+001,A3=6.97586e-003,A4=-2.61556e-001,A5=6.10427e-002,

A6=1.68379e-001,A8=-4.23603e-001,A10=2.04512e-001,A12=1.97297e+000,

A14=-1.87145e+000

The 10th

K=0.00000e+000,A3=-8.13216e-003,A4=-1.85193e-001,A5=-8.44559e-003,

A6=-6.86785e-002,A8=-2.90003e-003,A10=4.12544e-002,A12=-1.91061e-001,

A14=4.72884e-001

The 12nd

K=8.00000e+001,A3=4.82563e-002,A4=-2.25745e-001,A5=2.08621e-001,

A6=-2.87079e-002,A8=-1.89260e-001,A10=4.14664e-002,A12=1.97713e-002,

A14=-2.49444e-002

The 13rd

K=-6.28687e+000,A3=-9.87785e-002,A4=-2.32143e-001,A5=1.90900e-001,

A6=2.30808e-001,A8=-2.02504e-001,A10=-2.96206e-003,A12=4.86242e-002,

A14=-1.38078e-002

The 15th

K=5.09168e+000,A3=-3.00349e-001,A4=5.94822e-002,A5=3.98436e-002,

A6=2.72056e-002,A8=-5.70579e-003,A10=-1.45576e-003,A12=3.67231e-004,

A14=-1.13945e-005

The 16th

K=-8.02522e+000,A3=-1.48533e-001,A4=1.81488e-003,A5=2.19876e-002,

A6=2.72398e-003,A8=-7.00641e-003,A10=1.27333e-003,A12=-1.63098e-004,

A14=2.91955e-005

Below enumerate the characteristic of the imaging lens system of embodiment 13.

The data of the single lens of embodiment 13 have been shown in following table 39.

[table 39]

Figure 30 is the cut-open view of imaging lens system 23 grades of embodiment 13.Imaging lens system 23 possesses successively in order from object side: at optical axis AX, have positive refracting power and convex surface around towards the first lens L1 of the crescent shape of object side; At optical axis AX, there is negative refracting power and convex surface around towards the second lens L2 of the crescent shape of object side; At optical axis AX, around there is weak positive refracting power and approach the 3rd lens L3 of the biconvex of plano-convex; At optical axis AX, there is positive refracting power and convex surface around towards the 4th lens L4 of the crescent shape of picture side; And there is the 5th lens L5 of the concave-concave of negative refracting power around at optical axis AX.Whole lens L1～L5 form by plastic material.Object side in first lens L1 outer rim disposes opening diaphragm AS, disposes shading diaphragm FS1～FS4 between lens L1～L5.In addition, between the light entrance face of first lens L1 and object, can configure the parallel flat (not shown) with suitable thickness.

Figure 31 A～Figure 31 C shows the various aberration diagrams (spherical aberration, astigmatism, distortion) of the imaging lens system 23 of embodiment 13, and Figure 31 D and Figure 31 E show the meridian circle comet aberration of the imaging lens system 23 of embodiment 13.

[embodiment 14]

The data of the lens face of embodiment 14 have been shown in following table 40.

[table 40]

The asphericity coefficient of the lens face of embodiment 14 has been shown in following table 41.

[table 41]

The 3rd

K=-6.57711e-002,A4=1.87744e-002,A6=8.89395e-002,A8=-2.10715e-001,

A10=7.50299e-001,A12=-1.29577e+000,A14=1.24466e+000

The 4th

K=-7.99987e+001,A4=-3.69373e-001,A6=1.53873e+000,A8=-2.33959e+000,

A10=-5.87555e-001,A12=7.16396e+000,A14=-6.72109e+000

The 6th

K=-7.53568e+001,A4=-5.63195e-001,A6=2.21534e+000,A8=-2.11612e+000,

A10=-5.39776e+000,A12=1.78352e+001,A14=-1.50203e+001

The 7th

K=-2.09163e+001,A4=3.82920e-002,A6=8.07164e-001,A8=-9.53705e-001,

A10=6.19105e+000,A12=-2.18787e+001,A14=3.13844e+001

The 9th

K=-4.53393e+000,A4=-4.17160e-001,A6=-2.24877e-001,A8=2.35151e+000,

A10=-7.93832e+000,A12=4.80928e+000,A14=3.83357e+001,A16=-5.53896e+001

The 10th

K=7.75444e+001,A4=-2.85713e-001,A6=-4.81983e-001,A8=1.66316e+000,

A10=-3.35328e+000,A12=4.86831e+000,A14=-1.33944e+000

The 12nd

K=-3.17714e+001,A4=2.63823e-001,A6=-1.69814e+000,A8=5.64088e+000,

A10=-1.86920e+001,A12=3.60010e+001,A14=-3.74695e+001,A16=1.56625e+001

The 13rd

K=4.80458e+000,A4=-3.46799e-001,A6=1.93223e+000,A8=-5.74051e+000,

A10=8.90348e+000,A12=-7.99894e+000,A14=3.88427e+000,A16=-7.78210e-001

The 15th

K=-3.47047e+001,A4=-3.77991e-001,A6=2.65778e-001,A8=-7.13874e-002,

A10=1.14099e-003,A12=3.68352e-003,A14=-7.92031e-004,A16=5.50885e-005

The 16th

K=-6.65888e+000,A4=-2.20019e-001,A6=1.09281e-001,A8=-3.73100e-002,

A10=5.20772e-003,A12=1.05444e-004,A14=-6.24856e-005

Below enumerate the characteristic of the imaging lens system of embodiment 14.

The data of the single lens of embodiment 14 have been shown in following table 42.

[table 42]

Figure 32 is the cut-open view of imaging lens system 24 grades of embodiment 14.Imaging lens system 24 possesses successively in order from object side: at optical axis AX, have positive refracting power and convex surface around towards the first lens L1 of the crescent shape of object side; At optical axis AX, there is negative refracting power and convex surface around towards the second lens L2 of the crescent shape of object side; At optical axis AX, around there is weak positive refracting power, be substantially planar and convex surface slightly towards the 3rd lens L3 of the crescent shape of object side; At optical axis AX, there is weak negative refracting power and convex surface around towards the 4th lens L4 of the crescent shape of picture side; And there is weak negative refracting power and convex surface around towards the 5th lens L5 of the crescent shape of object side at optical axis AX.Whole lens L1～L5 form by plastic material.Object side in first lens L1 outer rim disposes opening diaphragm AS, disposes shading diaphragm FS1～FS4 between lens L1～L5.In addition, between the light entrance face of first lens L1 and object, can configure the parallel flat (not shown) with suitable thickness.

Figure 33 A～Figure 33 C shows the various aberration diagrams (spherical aberration, astigmatism, distortion) of the imaging lens system 24 of embodiment 14, and Figure 33 D and Figure 33 E show the meridian circle comet aberration of the imaging lens system 24 of embodiment 14.

[embodiment 15]

The data of the lens face of embodiment 15 have been shown in following table 43.

[table 43]

The asphericity coefficient of the lens face of embodiment 15 has been shown in following table 44.

[table 44]

The 3rd

K=8.40264e-002,A4=8.56660e-003,A6=3.74548e-002,A8=-9.94910e-003,

A10=1.39437e-001,A12=1.83743e-001,A14=-6.61542e-001

The 4th

K=-8.00000e+001,A4=8.15473e-002,A6=1.48956e-001,A8=-8.00726e-003,

A10=-8.45306e-001,A12=-7.80922e-001,A14=1.51226e+000

The 6th

K=-1.51570e+001,A4=-6.52781e-002,A6=5.55279e-001,A8=-6.43629e-001,

A10=-1.27510e+000,A12=-2.30972e-001,A14=2.59808e+000

The 7th

K=-1.07565e+001,A3=-1.64532e-002,A4=1.84183e-001,A5=-2.12717e-002,

A6=2.24089e-001,A8=-1.32556e-001,A10=-3.07671e-001,A12=-7.81704e-001,

A14=2.62851e+000

The 9th

K=-2.46828e+001,A3=1.78014e-002,A4=-2.98099e-001,A5=4.17862e-003,

A6=2.48264e-001,A8=-4.48455e-001,A10=2.56799e-002,A12=1.55541e+000,

A14=-1.13314e+000

The 10th

K=0.00000e+000,A3=-2.29665e-002,A4=-1.68320e-001,A5=-1.16569e-002,

A6=-1.10215e-001,A8=5.52093e-002,A10=9.17457e-002,A12=-2.40059e-001,

A14=3.57381e-001

The 12nd

K=7.89034e+001,A3=3.95136e-002,A4=-2.18752e-001,A5=1.79326e-001,

A6=4.22969e-002,A8=-2.28953e-001,A10=1.10547e-001,A12=-5.54089e-002,

A14=2.07083e-002

The 13rd

K=-6.09314e+000,A3=-8.62507e-002,A4=-2.21737e-001,A5=1.98418e-001,

A6=2.56368e-001,A8=-2.03036e-001,A10=-1.94132e-002,A12=5.68146e-002,

A14=-1.46505e-002

The 15th

K=-3.74130e+000,A3=-2.92051e-001,A4=9.08690e-002,A5=4.49267e-002,

A6=2.35166e-002,A8=-9.37393e-003,A10=-1.34061e-003,A12=6.46898e-004,

A14=-5.02706e-005

The 16th

K=-8.42520e+000,A3=-1.67128e-001,A4=1.28201e-002,A5=2.83371e-002,

A6=-1.58193e-003,A8=-7.93232e-003,A10=1.39937e-003,A12=-2.06082e-004,

A14=4.95307e-005

Below enumerate the characteristic of the imaging lens system of embodiment 15.

The data of the single lens of embodiment 15 have been shown in following table 45.

[table 45]

Figure 34 is the cut-open view of imaging lens system 25 grades of embodiment 15.Imaging lens system 25 possesses successively in order from object side: at optical axis AX, around have positive refracting power and approach the first lens L1 of the biconvex of plano-convex; At optical axis AX, there is negative refracting power and convex surface around towards the second lens L2 of the crescent shape of object side; At optical axis AX, there is weak positive refracting power and convex surface around towards the 3rd lens L3 of the plano-convex of object side; At optical axis AX, there is positive refracting power and convex surface around towards the 4th lens L4 of the crescent shape of picture side; And there is the 5th lens L5 of the concave-concave of negative refracting power around at optical axis AX.Whole lens L1～L5 form by plastic material.Between first lens L1 and the second lens L2, dispose opening diaphragm AS.Object side in first lens L1 outer rim disposes shading diaphragm FS1, disposes shading diaphragm FS2～FS4 between lens L2～L5.In addition, between the light entrance face of first lens L1 and object, can configure the parallel flat (not shown) with suitable thickness.

Figure 35 A～Figure 35 C shows the various aberration diagrams (spherical aberration, astigmatism, distortion) of the imaging lens system 25 of embodiment 15, and Figure 35 D and Figure 35 E show the meridian circle comet aberration of the imaging lens system 25 of embodiment 15.

[embodiment 16]

The data of the lens face of embodiment 16 have been shown in following table 46.

[table 46]

The asphericity coefficient of the lens face of embodiment 16 has been shown in following table 47.

[table 47]

The 3rd

K=8.40264e-002,A4=1.02321e-002,A6=5.03617e-002,A8=-1.50596e-002,

A10=2.37600e-001,A12=3.52465e-001,A14=-1.42856e+000

The 4th

K=-8.00000e+001,A4=9.74015e-002,A6=2.00287e-001,A8=-1.21203e-002,

A10=-1.44040e+000,A12=-1.49800e+000,A14=3.26565e+000

The 6th

K=-1.51570e+001,A4=-7.79693e-002,A6=7.46629e-001,A8=-9.74241e-001,

A10=-2.17276e+000,A12=-4.43062e-001,A14=5.61041e+000

The 7th

K=-1.07565e+001,A3=-1.85220e-002,A4=2.19991e-001,A5=-2.69574e-002,

A6=3.01310e-001,A8=-2.00645e-001,A10=-5.24269e-001,A12=-1.49950e+000,

A14=5.67612e+000

The 9th

K=-2.46828e+001,A3=2.00398e-002,A4=-3.56055e-001,A5=5.29551e-003,

A6=3.33816e-001,A8=-6.78811e-001,A10=4.37584e-002,A12=2.98366e+000,

A14=-2.44695e+000

The 10th

K=0.00000e+000,A3=-2.58543e-002,A4=-2.01044e-001,A5=-1.47727e-002,

A6=-1.48195e-001,A8=8.35685e-002,A10=1.56334e-001,A12=-4.60494e-001,

A14=7.71746e-001

The 12nd

K=7.89034e+001,A3=4.44820e-002,A4=-2.61281e-001,A5=2.27258e-001,

A6=5.68724e-002,A8=-3.46559e-001,A10=1.88372e-001,A12=-1.06288e-001,

A14=4.47185e-002

The 13rd

K=-6.09314e+000,A3=-9.70957e-002,A4=-2.64846e-001,A5=2.51452e-001,

A6=3.44712e-001,A8=-3.07330e-001,A10=-3.30800e-002,A12=1.08985e-001,

A14=-3.16370e-002

The 15th

K=-3.74130e+000,A3=-3.28773e-001,A4=1.08535e-001,A5=5.69349e-002,

A6=3.16204e-002,A8=-1.41890e-002,A10=-2.28439e-003,A12=1.24091e-003,

A14=-1.08557e-004

The 16th

K=-8.42520e+000,A3=-1.88142e-001,A4=1.53126e-002,A5=3.59111e-002,

A6=-2.12707e-003,A8=-1.20069e-002,A10=2.38451e-003,A12=-3.95316e-004,

A14=1.06959e-004

Below enumerate the characteristic of the imaging lens system of embodiment 16.

The data of the single lens of embodiment 16 have been shown in following table 48.

[table 48]

Figure 36 is the cut-open view of imaging lens system 26 grades of embodiment 16.Imaging lens system 26 possesses successively in order from object side: at optical axis AX, around have positive refracting power and approach the first lens L1 of the biconvex of plano-convex; At optical axis AX, there is negative refracting power and convex surface around towards the second lens L2 of the crescent shape of object side; At optical axis AX, there is weak positive refracting power and convex surface around towards the 3rd lens L3 of the plano-convex of object side; At optical axis AX, there is positive refracting power and convex surface around towards the 4th lens L4 of the crescent shape of picture side; And there is the 5th lens L5 of the concave-concave of negative refracting power around at optical axis AX.Whole lens L1～L5 form by plastic material.Between first lens L1 and the second lens L2, dispose opening diaphragm AS.Object side in first lens L1 outer rim disposes shading diaphragm FS1, disposes shading diaphragm FS2～FS4 between lens L2～L5.In addition, between the light entrance face of first lens L1 and object, can configure the parallel flat (not shown) with suitable thickness.

Figure 37 A～Figure 37 C shows the various aberration diagrams (spherical aberration, astigmatism, distortion) of the imaging lens system 26 of embodiment 16, and Figure 37 D and Figure 37 E show the meridian circle comet aberration of the imaging lens system 26 of embodiment 16.

[embodiment 17]

The data of the lens face of embodiment 17 have been shown in following table 49.

[table 49]

The asphericity coefficient of the lens face of embodiment 17 has been shown in following table 50.

[table 50]

Asphericity coefficient

The 3rd

K=1.73380e-001,A4=4.43256e-003,A6=3.72606e-002,A8=-6.56219e-003,

A10=2.26339e-001,A12=3.38390e-001,A14=-1.30834e+000

The 4th

K=-8.00000e+001,A4=1.54234e-002,A6=2.84951e-001,A8=-4.88615e-002,

A10=-1.40133e+000,A12=-1.37798e+000,A14=3.11248e+000

The 6th

K=-1.83748e+001,A4=-8.32558e-002,A6=6.85797e-001,A8=-9.35273e-001,

A10=-2.07282e+000,A12=-3.84205e-001,A14=5.00835e+000

The 7th

K=-8.44438e+000,A3=-9.20460e-003,A4=2.96508e-001,A5=-1.26192e-002,

A6=2.41452e-001,A8=-1.97538e-001,A10=-3.90770e-001,A12=-1.36346e+000,

A14=5.94126e+000

The 9th

K=8.00000e+001,A3=3.02113e-002,A4=-3.20664e-001,A5=5.43858e-002,

A6=2.44702e-001,A8=-4.80922e-001,A10=5.25911e-002,A12=2.46165e+000,

A14=-2.03066e+000

The 10th

K=0.00000e+000,A3=-6.46732e-003,A4=-2.20744e-001,A5=1.95666e-003,

A6=-7.65808e-002,A8=-1.85170e-002,A10=1.30669e-001,A12=-2.67612e-001,

A14=5.88789e-001

The 12nd

K=4.72147e+001,A3=3.47848e-002,A4=-2.42134e-001,A5=2.39067e-001,

A6=-4.01586e-002,A8=-2.13031e-001,A10=5.52927e-002,A12=-2.30662e-002,

A14=1.11740e-002

The 13rd

K=-6.81461e+000,A3=-1.07431e-001,A4=-2.80731e-001,A5=2.48387e-001,

A6=3.07155e-001,A8=-3.07188e-001,A10=3.22283e-003,A12=9.69519e-002,

A14=-3.33563e-002

The 15th

K=-1.42099e+001,A3=-3.20224e-001,A4=7.77760e-002,A5=5.12229e-002,

A6=3.55687e-002,A8=-9.46570e-003,A10=-2.78569e-003,A12=6.55579e-004,

A14=1.37201e-005

The 16th

K=-1.24702e+001,A3=-1.48441e-001,A4=-6.87741e-003,A5=2.41497e-002,

A6=4.95825e-003,A8=-1.02330e-002,A10=2.00168e-003,A12=-3.45065e-004,

A14=8.07609e-005

Below enumerate the characteristic of the imaging lens system of embodiment 17.

The data of the single lens of embodiment 17 have been shown in following table 51.

[table 51]

Figure 38 is the cut-open view of imaging lens system 27 grades of embodiment 17.Imaging lens system 27 possesses successively in order from object side: at optical axis AX, have positive refracting power and convex surface around towards the first lens L1 of the crescent shape of object side; At optical axis AX, there is negative refracting power and convex surface around towards the second lens L2 of the crescent shape of object side; At optical axis AX, around there is weak positive refracting power and approach the 3rd lens L3 of the biconvex of plano-convex; At optical axis AX, there is positive refracting power and convex surface around towards the 4th lens L4 of the crescent shape of picture side; And there is the 5th lens L5 of the concave-concave of negative refracting power around at optical axis AX.Whole lens L1～L5 form by plastic material.Object side in first lens L1 outer rim disposes opening diaphragm AS, disposes shading diaphragm FS1～FS4 between lens L1～L5.In addition, between the light entrance face of first lens L1 and object, can configure the parallel flat (not shown) with suitable thickness.

Figure 39 A～Figure 39 C shows the various aberration diagrams (spherical aberration, astigmatism, distortion) of the imaging lens system 27 of embodiment 17, and Figure 39 D and Figure 39 E show the meridian circle comet aberration of the imaging lens system 27 of embodiment 17.

[embodiment 18]

The data of the lens face of embodiment 18 have been shown in following table 52.

[table 52]

The asphericity coefficient of the lens face of embodiment 18 has been shown in following table 53.

[table 53]

The 3rd

K=2.02519e-001,A4=-4.92940e-003,A6=4.70649e-002,A8=-1.29230e-003,

A10=1.81630e-001,A12=3.62287e-001,A14=-7.84600e-001

The 4th

KK=1.07858e+001,A4=-2.67224e-002,A6=2.54306e-001,A8=1.84121e-001,

A10=-7.69678e-001,A12=-9.56280e-001,A14=-3.46874e-001

The 6th

K=-7.02254e+001,A4=-1.31800e-001,A6=7.53884e-001,A8=-6.88758e-001,

A10=-1.81514e+000,A12=-9.54666e-001,A14=1.70532e+000

The 7th

K=-2.57603e+001,A3=-4.19731e-003,A4=2.28377e-001,A5=-5.37069e-002,

A6=2.63156e-001,A8=-1.25974e-001,A10=-4.95440e-001,A12=-1.95391e+000,

A14=3.64132e+000

The 9th

K=-7.16430e+001,A3=7.85299e-003,A4=-3.12407e-001,A5=7.73586e-002,

A6=2.26403e-001,A8=-6.41194e-001,A10=3.48486e-001,A12=3.78465e+000,

A14=-4.04129e+000

The 10th

K=0.00000e+000,A3=-9.15468e-003,A4=-2.21198e-001,A5=-1.07030e-002,

A6=-9.23451e-002,A8=-4.38969e-003,A10=7.02972e-002,A12=-3.66502e-001,

A14=1.02117e+000

The 12nd

K=8.00000e+001,A3=5.43240e-002,A4=-2.69634e-001,A5=2.64383e-001,

A6=-3.86006e-002,A8=-2.86476e-001,A10=7.06585e-002,A12=3.79262e-002,

A14=-5.38662e-002

The 13rd

K=-6.28687e+000,A3=-1.11199e-001,A4=-2.77276e-001,A5=2.41925e-001,

A6=3.10345e-001,A8=-3.06523e-001,A10=-5.04733e-003,A12=9.32733e-002,

A14=-2.98173e-002

The 15th

K=5.09168e+000,A3=-3.38114e-001,A4=7.10465e-002,A5=5.04932e-002,

A6=3.65806e-002,A8=-8.63666e-003,A10=-2.48060e-003,A12=7.04440e-004,

A14=-2.46059e-005

The 16th

K=-8.02522e+000,A3=-1.67209e-001,A4=2.16772e-003,A5=2.78646e-002,

A6=3.66267e-003,A8=-1.06054e-002,A10=2.16974e-003,A12=-3.12863e-004,

A14=6.30462e-005

Below enumerate the characteristic of the imaging lens system of embodiment 18.

The data of the single lens of embodiment 18 have been shown in following table 54.

[table 54]

Figure 40 is the cut-open view of imaging lens system 28 grades of embodiment 18.Imaging lens system 28 possesses successively in order from object side: at optical axis AX, have positive refracting power and convex surface around towards the first lens L1 of the crescent shape of object side; At optical axis AX, there is negative refracting power and convex surface around towards the second lens L2 of the crescent shape of object side; At optical axis AX, around there is weak positive refracting power and approach the 3rd lens L3 of the biconvex of plano-convex; At optical axis AX, there is positive refracting power and convex surface around towards the 4th lens L4 of the crescent shape of picture side; And there is the 5th lens L5 of the concave-concave of negative refracting power around at optical axis AX.Whole lens L1～L5 form by plastic material.Object side in first lens L1 outer rim disposes opening diaphragm AS, disposes shading diaphragm FS1～FS4 between lens L1～L5.In addition, between the light entrance face of first lens L1 and object, can configure the parallel flat (not shown) with suitable thickness.

Figure 41 A～Figure 41 C shows the various aberration diagrams (spherical aberration, astigmatism, distortion) of the imaging lens system 28 of embodiment 18, and Figure 41 D and Figure 41 E show the meridian circle comet aberration of the imaging lens system 28 of embodiment 18.

[embodiment 19]

The data of the lens face of embodiment 19 have been shown in following table 55.

[table 55]

The asphericity coefficient of the lens face of embodiment 19 has been shown in following table 56.

[table 56]

The 3rd

K=1.62514e-001,A4=-8.98292e-004,A6=4.54336e-002,A8=-2.73319e-003,

A10=2.30274e-001,A12=3.45125e-001,A14=-1.32786e+000

The 4th

K=-1.93893e+001,A4=4.35111e-002,A6=2.77899e-001,A8=-2.61310e-002,

A10=-1.37455e+000,A12=-1.50543e+000,A14=2.77206e+000

The 6th

K=-1.36249e+001,A4=-7.17390e-002,A6=7.05117e-001,A8=-9.46454e-001,

A10=-2.16655e+000,A12=-4.97699e-001,A14=4.96373e+000

The 7th

K=-1.08493e+001,A3=-1.27634e-002,A4=2.94444e-001,A5=-9.18674e-003,

A6=2.26141e-001,A8=-2.58022e-001,A10=-3.83535e-001,A12=-1.32357e+000,

A14=5.39470e+000

The 9th

K=6.49613e+001,A3=2.45526e-002,A4=-3.19033e-001,A5=4.25781e-002,

A6=2.38811e-001,A8=-4.63675e-001,A10=7.00370e-002,A12=2.46346e+000,

A14=-2.02429e+000

The 10th

K=0.00000e+000,A3=2.58179e-003,A4=-2.32693e-001,A5=5.01409e-003,

A6=-7.32355e-002,A8=-2.54092e-002,A10=1.25676e-001,A12=-2.64607e-001,

A14=6.15434e-001

The 12nd

K=2.03388e+001,A3=3.17790e-002,A4=-2.28753e-001,A5=2.27579e-001,

A6=-4.21970e-002,A8=-2.06446e-001,A10=5.01729e-002,A12=-2.94495e-002,

A14=1.89381e-002

The 13rd

K=-6.33003e+000,A3=-9.76035e-002,A4=-2.77113e-001,A5=2.50360e-001,

A6=3.06966e-001,A8=-3.09782e-001,A10=8.02296e-004,A12=9.62978e-002,

A14=-3.20380e-002

The 15th

K=-2.05412e+001,A3=-3.20488e-001,A4=7.41430e-002,A5=4.91917e-002,

A6=3.50046e-002,A8=-9.14111e-003,A10=-2.62533e-003,A12=6.75709e-004,

A14=-2.00236e-006

The 16th

K=-1.03289e+001,A3=-1.54387e-001,A4=-4.13212e-003,A5=2.51123e-002,

A6=4.88690e-003,A8=-1.06791e-002,A10=1.88157e-003,A12=-3.41999e-004,

A14=9.25579e-005

Below enumerate the characteristic of the imaging lens system of embodiment 19.

The data of the single lens of embodiment 19 have been shown in following table 57.

[table 57]

Figure 42 is the cut-open view of imaging lens system 29 grades of embodiment 19.Imaging lens system 29 possesses successively in order from object side: at optical axis AX, have positive refracting power and convex surface around towards the first lens L1 of the crescent shape that approaches plano-convex of object side; At optical axis AX, there is negative refracting power and convex surface around towards the second lens L2 of the crescent shape of object side; At optical axis AX, there is the 3rd lens L3 of the biconvex of weak positive refracting power around; At optical axis AX, there is positive refracting power and convex surface around towards the 4th lens L4 of the crescent shape of picture side; And there is the 5th lens L5 of the concave-concave of negative refracting power around at optical axis AX.Whole lens L1～L5 form by plastic material.Object side in first lens L1 outer rim disposes opening diaphragm AS, disposes shading diaphragm FS1～FS4 between lens L1～L5.In addition, between the light entrance face of first lens L1 and object, can configure the parallel flat (not shown) with suitable thickness.

Figure 43 A～Figure 43 C shows the various aberration diagrams (spherical aberration, astigmatism, distortion) of the imaging lens system 29 of embodiment 19, and Figure 43 D and Figure 43 E show the meridian circle comet aberration of the imaging lens system 29 of embodiment 19.

[embodiment 20]

The data of the lens face of embodiment 20 have been shown in following table 58.

[table 58]

The asphericity coefficient of the lens face of embodiment 20 has been shown in following table 59.

[table 59]

The 3rd

K=-6.26507e-002,A4=2.38370e-003,A6=1.89893e-001,A8=-3.74627e-001,

A10=6.14314e-001,A12=-8.25390e-001,A14=1.52043e+000

The 4th

K=-5.96410e+001,A4=-4.16478e-001,A6=1.59346e+000,A8=-2.37201e+000,

A10=-4.83646e-001,A12=8.37888e+000,A14=-9.12240e+000

The 6th

K=-7.09673e+001,A4=-6.60932e-001,A6=2.24445e+000,A8=-1.67706e+000,

A10=-5.36649e+000,A12=1.61208e+001,A14=-1.51991e+001

The 7th

K=-2.04738e+001,A4=-6.02700e-002,A6=1.02572e+000,A8=-1.19138e+000,

A10=7.60784e+000,A12=-2.49757e+001,A14=3.13844e+001

The 9th

K=8.00000e+001,A4=-5.93743e-001,A6=5.51192e-002,A8=2.12471e+000,

A10=-9.32947e+000,A12=9.57098e+000,A14=3.83357e+001,A16=-5.53896e+001

The 10th

K=-8.00000e+001,A4=-4.69254e-001,A6=-3.29722e-001,A8=1.70508e+000,

A10=-4.39810e+000,A12=6.35402e+000,A14=3.53412e-001

The 12nd

K=-6.62835e+001,A4=2.21419e-001,A6=-1.62188e+000,A8=5.81030e+000,

A10=-1.95438e+001,A12=3.61305e+001,A14=-3.52101e+001,A16=1.35054e+001

The 13rd

K=-1.58612e+001,A4=-2.46060e-001,A6=1.76650e+000,A8=-5.70601e+000,

A10=8.95277e+000,A12=-8.01231e+000,A14=3.86179e+000,A16=-7.66740e-001

The 15th

K=-6.37878e+001,A4=-3.69650e-001,A6=2.66546e-001,A8=-7.23684e-002,

A10=1.03034e-003,A12=3.75390e-003,A14=-7.66838e-004,A16=4.81655e-005

The 16th

K=-7.56176e+000,A4=-2.23118e-001,A6=1.10389e-001,A8=-3.65242e-002,

A10=4.94625e-003,A12=4.15199e-005,A14=-3.77553e-005

Below enumerate the characteristic of the imaging lens system of embodiment 20.

The data of the single lens of embodiment 20 have been shown in following table 60.

[table 60]

Figure 44 is the cut-open view of imaging lens system 30 grades of embodiment 20.Imaging lens system 30 possesses successively in order from object side: at optical axis AX, have positive refracting power and convex surface around towards the first lens L1 of the crescent shape that approaches plano-convex of object side; At optical axis AX, there is negative refracting power and convex surface around towards the second lens L2 of the crescent shape of object side; At optical axis AX, there is the 3rd lens L3 of the biconvex of weak positive refracting power around; At optical axis AX, there is positive refracting power and convex surface around towards the 4th lens L4 of the crescent shape of picture side; And there is the 5th lens L5 of the concave-concave of negative refracting power around at optical axis AX.Whole lens L1～L5 form by plastic material.Object side in first lens L1 outer rim disposes opening diaphragm AS, disposes shading diaphragm FS1～FS4 between lens L1～L5.In addition, between the light entrance face of first lens L1 and object, can configure the parallel flat (not shown) with suitable thickness.

Figure 45 A～Figure 45 C shows the various aberration diagrams (spherical aberration, astigmatism, distortion) of the imaging lens system 30 of embodiment 20, and Figure 45 D and Figure 45 E show the meridian circle comet aberration of the imaging lens system 30 of embodiment 20.

As a reference, in following table 61, the value of each embodiment 1～20 corresponding with each conditional (1)～(14) has been carried out to summary finishing.

[table 61]

Although with regard to embodiment, embodiment, the utility model is illustrated above, the utility model is not limited to above-mentioned embodiment etc.For example, shading diaphragm FS1～FS4 is not limited to sheet metal, can also be made as the plate-shaped member of resin or pottery, can also assemble by the material of light-proofness being coated on to the flange part 39 of lens.And then shading diaphragm FS1～FS4 is not limited to occulter completely, can be also to carry out the structure of delustring outward at bore.In the situation that shading diaphragm FS1～FS4 being made as to shadow shield etc., can also between a pair of lens, configure a plurality of shadow shields etc.

Claims (43)

1. an imaging lens system, is characterized in that,

This imaging lens system from object side, possess successively convex surface towards positive first lens, the second lens, the 3rd lens, the 4th lens and the concave surface of object side the 5th lens towards picture side,

Being aspheric surface and thering is flex point within the scope of effective diameter as side of described the 5th lens,

At least one party in described the second lens and described the 3rd lens is negative lens,

Opening diaphragm than described the 3rd lens near object side,

Between described the 3rd lens and described the 4th lens and, there is shading diaphragm between described the 4th lens and described the 5th lens,

The object side mask of described the 4th lens has aspheric shape, and, also meet following conditional (1),

0.015<AS7/f<0.07…（1）

Wherein, AS7 represents the aspherical shape of object side and the maximum deviation amount of spherical shape that the effective diameter position of described the 4th lens and central point are linked of described the 4th lens, and f represents the focal length of imaging lens system whole system.

2. imaging lens system according to claim 1, is characterized in that,

The having aspherical shape and have flex point as side of described the 3rd lens, above local or whole of 7 one-tenth of the effective diameter as side of described the 3rd lens has negative diopter.

3. imaging lens system according to claim 1 and 2, is characterized in that,

Meet following conditional (2),

0.75<dф/dz<2.5…（2）

Wherein, d ф represents the poor of the internal diameter of opening portion of the shading diaphragm between described the 4th lens and described the 5th lens and the internal diameter of the opening portion of the shading diaphragm between described the 3rd lens and described the 4th lens, and dz represents the interval on the optical axis direction of shading diaphragm between described the 4th lens and described the 5th lens and the shading diaphragm between described the 3rd lens and described the 4th lens.

4. imaging lens system according to claim 3, is characterized in that,

Meet following conditional (2 '),

1.2<dф/dz<2.5…（2′）。

5. imaging lens system according to claim 1 and 2, is characterized in that,

Meet following conditional (3),

0.03<et6/f<0.10…（3）

Wherein, et6 represents the picture effective diameter position of side of described the 3rd lens and the interval on the optical axis direction between the effective diameter position of the object side of described the 4th lens.

6. imaging lens system according to claim 3, is characterized in that,

Meet following conditional (3),

0.03<et6/f<0.10…（3）

Wherein, et6 represents the picture effective diameter position of side of described the 3rd lens and the interval on the optical axis direction between the effective diameter position of the object side of described the 4th lens.

7. imaging lens system according to claim 1 and 2, is characterized in that,

Meet following conditional (4),

40<θS7<80…（4）

Wherein, θ S7 represents the largest face angle of 7 one-tenth of effective diameter above scopes of the object side of described the 4th lens.

8. imaging lens system according to claim 3, is characterized in that,

Meet following conditional (4),

40<θS7<80…（4）

Wherein, θ S7 represents the largest face angle of 7 one-tenth of effective diameter above scopes of the object side of described the 4th lens.

9. imaging lens system according to claim 1 and 2, is characterized in that,

Described opening diaphragm than described the second lens near object side.

10. imaging lens system according to claim 3, is characterized in that,

Described opening diaphragm than described the second lens near object side.

11. imaging lens systems according to claim 1 and 2, is characterized in that,

Meet following conditional (5),

|Sag6|/f<0.10…（5）

Wherein, | Sag6| represents the sag amount maximal value of the picture side of described the 3rd lens.

12. imaging lens systems according to claim 3, is characterized in that,

Meet following conditional (5),

|Sag6|/f<0.10…（5）

Wherein, | Sag6| represents the sag amount maximal value of the picture side of described the 3rd lens.

13. imaging lens systems according to claim 1 and 2, is characterized in that,

Meet following conditional (6),

-15<θS6<15…（6）

Wherein, θ S6 represents the largest face angle of 9 one-tenths of effective diameter of picture side of described the 3rd lens scopes above.

14. imaging lens systems according to claim 3, is characterized in that,

Meet following conditional (6),

-15<θS6<15…（6）

Wherein, θ S6 represents the largest face angle of 9 one-tenths of effective diameter of picture side of described the 3rd lens scopes above.

15. imaging lens systems according to claim 1 and 2, is characterized in that,

Meet following conditional (7),

0.65<|Sag7|/d7<1.50…（7）

Wherein, | Sag7| represents the sag amount maximal value of the object side of described the 4th lens, and d7 represents the center thickness of described the 4th lens.

16. imaging lens systems according to claim 3, is characterized in that,

Meet following conditional (7),

0.65<|Sag7|/d7<1.50…（7）

Wherein, | Sag7| represents the sag amount maximal value of the object side of described the 4th lens, and d7 represents the center thickness of described the 4th lens.

17. imaging lens systems according to claim 1 and 2, is characterized in that,

Meet following conditional (8),

0.45<θr6/θr4<1.00…（8）

Wherein, θ r4 represents the refraction angle as the periphery light apart from an optical axis side far away in the diagonal angle image height light beam of side of described the second lens, and θ r6 represents the refraction angle as the periphery light apart from an optical axis side far away in the diagonal angle image height light beam of side of described the 3rd lens.

18. imaging lens systems according to claim 3, is characterized in that,

Meet following conditional (8),

0.45<θr6/θr4<1.00…（8）

Wherein, θ r4 represents the refraction angle as the periphery light apart from an optical axis side far away in the diagonal angle image height light beam of side of described the second lens, and θ r6 represents the refraction angle as the periphery light apart from an optical axis side far away in the diagonal angle image height light beam of side of described the 3rd lens.

19. imaging lens systems according to claim 1 and 2, is characterized in that,

Meet following conditional (9),

0.05<et8/f<0.20…（9）

Wherein, et8 represents the picture effective diameter position of side of described the 4th lens and the interval on the optical axis direction between the effective diameter position of the object side of described the 5th lens.

20. imaging lens systems according to claim 3, is characterized in that,

Meet following conditional (9),

0.05<et8/f<0.20…（9）

Wherein, et8 represents the picture effective diameter position of side of described the 4th lens and the interval on the optical axis direction between the effective diameter position of the object side of described the 5th lens.

21. imaging lens systems according to claim 1 and 2, is characterized in that,

Described the 5th lens are negative lens, and meet following conditional (10),

45<v5<70…（10）

Wherein, v5 represents the Abbe number of described the 5th lens.

22. imaging lens systems according to claim 3, is characterized in that,

Described the 5th lens are negative lens, and meet following conditional (10),

45<v5<70…（10）

Wherein, v5 represents the Abbe number of described the 5th lens.

23. imaging lens systems according to claim 1 and 2, is characterized in that,

Meet following conditional (11),

1.45<n1<1.65…（11）

Wherein, n1 represents the refractive index of described first lens.

24. imaging lens systems according to claim 3, is characterized in that,

Meet following conditional (11),

1.45<n1<1.65…（11）

Wherein, n1 represents the refractive index of described first lens.

25. imaging lens systems according to claim 1 and 2, is characterized in that,

Described the second lens are negative lenses.

26. imaging lens systems according to claim 3, is characterized in that,

Described the second lens are negative lenses.

27. imaging lens systems according to claim 25, is characterized in that,

The absolute value of the radius-of-curvature as side of described the second lens is less than the absolute value of radius-of-curvature of the object side of described the second lens.

28. imaging lens systems according to claim 26, is characterized in that,

The absolute value of the radius-of-curvature as side of described the second lens is less than the absolute value of radius-of-curvature of the object side of described the second lens.

29. imaging lens systems according to claim 1 and 2, is characterized in that,

7 one-tenth above local or integral body of the effective diameter as side of described the second lens have negative diopter.

30. imaging lens systems according to claim 3, is characterized in that,

7 one-tenth above local or integral body of the effective diameter as side of described the second lens have negative diopter.

31. imaging lens systems according to claim 25, is characterized in that,

7 one-tenth above local or integral body of the effective diameter as side of described the second lens have negative diopter.

32. imaging lens systems according to claim 25, is characterized in that,

Meet following conditional (12),

15<v2<30…（12）

Wherein, v2 represents the Abbe number of described the second lens.

33. imaging lens systems according to claim 26, is characterized in that,

Meet following conditional (12),

15<v2<30…（12）

Wherein, v2 represents the Abbe number of described the second lens.

34. imaging lens systems according to claim 1 and 2, is characterized in that,

Meet following conditional (13),

-0.2<f/f4<2.0…（13）

Wherein, f4 represents the focal length of described the 4th lens.

35. imaging lens systems according to claim 3, is characterized in that,

Meet following conditional (13),

-0.2<f/f4<2.0…（13）

Wherein, f4 represents the focal length of described the 4th lens.

36. imaging lens systems according to claim 1 and 2, is characterized in that,

Meet following conditional (14),

1.1<f123/f<1.7…（14）

Wherein, f123 represents that described first lens is to the synthetic focal length of described the 3rd lens.

37. imaging lens systems according to claim 3, is characterized in that,

Meet following conditional (14),

1.1<f123/f<1.7…（14）

Wherein, f123 represents that described first lens is to the synthetic focal length of described the 3rd lens.

38. imaging lens systems according to claim 1 and 2, is characterized in that,

Described opening diaphragm is than described the second lens near object side, and described the second lens and described the 5th lens are negative lenses, and meet following conditional (13),

-0.2<f/f4<2.0…（13）。

39. imaging lens systems according to claim 3, is characterized in that,

Described opening diaphragm is than described the second lens near object side, and described the second lens and described the 5th lens are negative lenses, and meet following conditional (13),

-0.2<f/f4<2.0…（13）。

40. imaging lens systems according to claim 1 and 2, is characterized in that,

Also possess and do not there are in fact dioptric lens.

41. imaging lens systems according to claim 3, is characterized in that,

Also possess and do not there are in fact dioptric lens.

42. 1 kinds of camera heads, is characterized in that,

Described camera head possesses the imaging lens system described in any one in imaging apparatus and claim 1 to 41.

43. 1 kinds of mobile terminals, is characterized in that,

Described mobile terminal possesses the camera head described in claim 42.

Images