CN101226271A - Photographic optical lens assembly - Google Patents
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- CN101226271A CN101226271A CNA2007100083042A CN200710008304A CN101226271A CN 101226271 A CN101226271 A CN 101226271A CN A2007100083042 A CNA2007100083042 A CN A2007100083042A CN 200710008304 A CN200710008304 A CN 200710008304A CN 101226271 A CN101226271 A CN 101226271A
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Abstract
The invention discloses a photographic optics lens group, which comprises three lenses with inflection force, wherein from object to image, the first lens is provided with a positive inflection force, a convex front surface and a concave back surface, while at least one surface is aspheric, the second lens made from plastic is provided with negative inflection force, a concave front surface and a convex back surface, while the front and back surfaces are aspheric, and a third lens made from plastic is provided with positive inflection force, a convex front surface and a concave back surface, while the front and back surfaces are aspheric. The stop of the photographic optics lens group is arranged at the front of the first lens, the focus of the second lens is f2, the focus of the whole photographic optics lens group is f, while 0.1<|f/f2|<0.74. The inventive lens structure and arrangement can effectively reduce the volume of lens group and obtain high image interpreting power.
Description
Technical field
The present invention relates to a kind of optical lens group, particularly a kind of miniaturization photo-optics lens combination that is applied to camera cell phone.
Background technology
Recent years, rise along with mobile phone camera, the demand of miniaturization phtographic lens day by day improves, and the photosensory assembly of general phtographic lens is nothing more than being two kinds of CMOS or CCD, because the manufacture of semiconductor development of technology makes the picture element area of photosensory assembly dwindle, the miniaturization phtographic lens is gradually toward the development of high picture element field, therefore, the requirement to image quality also increases day by day.
Existing mobile lens adopts three pieces of formula lens structures more, and to first lens that are followed successively by the positive refracting power of a tool as side, second lens of the negative refracting power of a tool and the 3rd lens of the positive refracting power of a tool constitute so-called Triplet pattern from the thing side for it.And, can adopt the form of mid-aperture, but there is following shortcoming in the configuration of mid-aperture for the light refracting power of balance optical system:
One, the configuration of mid-aperture is bigger for the demand of optics length overall, causes structure must cooperate the optics length overall to strengthen, so that can't satisfy the phtographic lens module of more miniaturization.
They are two years old, the configuration of mid-aperture is because outgoing pupil (Exit Pupil) is nearer apart from imaging surface, angle on the desire compacting light incident photosensory assembly is difficulty comparatively, and itself there is pupil poor (Pupil Aberration) in the optical system of mid-aperture, produces the possibility at dark angle with increasing optical system.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of photo-optics lens combination, can obtain the good quality of image and effective volume that reduces optical lens group.
For solving the problems of the technologies described above, the invention provides a kind of photo-optics lens combination, comprise the lens of three pieces of tool refracting powers, extremely be followed successively by by the thing side as side:
First lens of the positive refracting power of one tool, its front surface are that convex surface, rear surface are concave surface, and at least one surface is an aspheric surface;
Plastics second lens of the negative refracting power of one tool, its front surface is that concave surface, rear surface are convex surface, and its front surface, rear surface are all aspheric surface;
Plastics the 3rd lens of the positive refracting power of one tool, its front surface are that convex surface, rear surface are concave surface, and its front surface, rear surface are all aspheric surface;
Wherein, the aperture of this photo-optics lens combination is arranged at before these first lens, is used to control the brightness of photo-optics lens combination;
In photo-optics lens combination of the present invention, the refracting power of system is mainly provided by first lens of the positive refracting power of tool, the function of second lens of the negative refracting power of tool is mainly the correction aberration, and the effect of the 3rd lens such as revisal lens, and its function is balance and every aberration that update the system produced.
In photo-optics lens combination of the present invention, first lens of the positive refracting power of tool, its front surface are convex surface, and the rear surface is a concave surface, second lens of the negative refracting power of tool, its front surface is a concave surface, and the rear surface is a convex surface, and the 3rd lens of the positive refracting power of tool, its front surface is a convex surface, the rear surface is a concave surface, relies on above configuration, can effectively improve image quality.
Rely on first lens that powerful positive refracting power is provided, and aperture is placed the object side of photo-optics lens combination, make the outgoing pupil of photo-optics lens combination away from imaging surface, therefore, light will be incident in the mode near vertical incidence on the photosensory assembly, this is Telecentric (please the use Chinese note) characteristic of picture side, this characteristic is very important for the photoperceptivity of solid-state photosensory assembly at present, with making the sensitization susceptibility of photosensory assembly improve, reduce the photo-optics lens combination and produce the possibility at dark angle.And the 3rd lens are provided with the point of inflexion, are incident in angle on the photosensory assembly with more effectively suppressing light from the axle visual field.
Trend along with the lens of photographic mobile phone miniaturization, and system need contain visual angle widely, make the focal length of photo-optics lens combination become very short, in this case, the radius-of-curvature of eyeglass and the size of eyeglass all become very little, will be difficult to produce above-mentioned eyeglass with the traditional glass abrasive method, therefore, on eyeglass, adopt plastic material, make eyeglass, can use the eyeglass of cheaper cost production high precision in the mode of ejection formation; And aspheric surface is set on minute surface, aspheric surface is made into the shape beyond the sphere easily, obtains more control variable, in order to subduing aberration, and then the number that uses of reduction eyeglass, so can effectively reduce the total length of photo-optics lens combination.
In photo-optics lens combination of the present invention, the focal length of first lens is f1, and the focal length of whole photo-optics lens combination is f, and both satisfy following relational expression: f/f1＞0.9; If f/f1 is less than the lower limit of above-mentioned relation formula, then the refracting power deficiency of photo-optics lens combination makes that the optics total length is long, and comparatively difficult for the angle on the compacting light incident photosensory assembly.Furthermore, it is then comparatively desirable to make f/f1 satisfy following relation: 1.1＜f/f1＜2.0.
In photo-optics lens combination of the present invention, the focal length of second lens is f2, and the focal length of whole photo-optics lens combination is f, and both satisfy following relational expression: | f/f2|＜0.74; If | f/f2| is greater than the higher limit of above-mentioned relation formula, and then the total length of photo-optics lens combination is long, and the target of this and the miniaturization of photo-optics lens combination is disagreed.Furthermore, making | it is then comparatively desirable that f/f2| satisfies following relation: | f/f2|＜0.6.
In photo-optics lens combination of the present invention, the focal length of second lens is f2, and the focal length of whole photo-optics lens combination is f, and both satisfy note relational expression down: | f/f2|＞0.1; If | f/f2| is less than the lower limit of above-mentioned relation formula, and then the aberration of photo-optics lens combination will be difficult to revise.Furthermore, making | it is then comparatively desirable that f/f2| satisfies following relation: | f/f2|＞0.3.
In photo-optics lens combination of the present invention, the focal length of the 3rd lens is f3, and the focal length of whole photo-optics lens combination is f, and both satisfy following relational expression: f/f3＞0.35; The effect of the 3rd lens such as revisal lens, its function are balance and every aberration that update the system produced, if f/f3 is less than the lower limit of above-mentioned relation formula, then the back focal length of photo-optics lens combination (Back Focal Length) is with long.
In photo-optics lens combination of the present invention, the abbe number of second lens (Abbe number) is V2, and it satisfies following relational expression: V2＜40; Aforementioned relation is the aberration of update the system generation effectively, improves the resolving power of photo-optics lens combination.Furthermore, it is then comparatively desirable to make abbe number (Abbe number) V2 of second lens satisfy following relational expression: V2＜28; Further, it is then even more ideal to make abbe number (Abbe number) V2 of second lens satisfy following relational expression: V2＜25.
In photo-optics lens combination of the present invention, the abbe number of first lens (Abbe number) is V1, and the abbe number of the 3rd lens (Abbe number) is V3, and it satisfies following relational expression: V1＞50, V3＞50; Aforementioned relation is the aberration of update the system generation effectively.
In photo-optics lens combination of the present invention, the refractive index of first lens is N1, and the refractive index of second lens is N2, satisfies following relational expression: N1＜1.6, N2＜1.7; If the refractive index of first lens, second lens is higher than the higher limit of above-mentioned relation formula, then be not easy to find suitable optical plastic material and photo-optics lens combination coupling.
In photo-optics lens combination of the present invention, the front surface radius-of-curvature of first lens is R1, and the rear surface radius-of-curvature of first lens is R2, and both satisfy following relational expression: 0.05＜R1/R2＜0.5; Be lower than the lower limit of above-mentioned relation formula as R1/R2, the astigmatism (Astigmatism) that the photo-optics lens combination produces will be difficult to revise, on the other hand, when R1/R2 is higher than the higher limit of above-mentioned relation formula, for the correction of the spherical aberration in the photo-optics lens combination (Spherical Aberration) difficulty comparatively.If it is make R1/R2 satisfy following relational expression, then comparatively desirable: 0.25＜R1/R2＜0.45.
In optical imaging mirror group of the present invention, the front surface radius-of-curvature of second lens is R3, and the rear surface radius-of-curvature of second lens is R4, and both satisfy following relational expression: 0.3＜R3/R4＜0.8; When R3/R4 is lower than the lower limit of above-mentioned relation formula, it is less relatively that R3 becomes, and will make that the total length of optical imaging mirror group is excessive, on the other hand, when R3/R4 was higher than the higher limit of above-mentioned relation formula, it is relatively large that R3 becomes, and the aberration that optical imaging mirror group produces will be difficult to revise.If it is make R3/R4 satisfy following relational expression, then comparatively desirable: 0.5＜R3/R4＜0.65.
In optical imaging mirror group of the present invention, the front surface radius-of-curvature of the 3rd lens is R5, and the rear surface radius-of-curvature of the 3rd lens is R6, and both satisfy following relational expression: 0.55＜R5/R6＜0.75; Aforementioned relation will help the higher order aberratons of update the system.
In photo-optics lens combination of the present invention, the mirror angle of effective diameter position, the 3rd lens rear surface is ANG32, satisfy following relational expression: ANG32＜-32[deg]; The direction of its mirror angle be defined as " when the mirror angle of peripheral effective diameter position to tiltedly just then being defined as inclination, the mirror angle when peripheral effective diameter position tiltedly then is defined as negative to the thing inclination ".Aforementioned relation can effectively be dwindled the angle of light incident photosensory assembly, and can strengthen the ability of photo-optics lens combination correction off-axis aberration.
In photo-optics lens combination of the present invention, the rear surface radius-of-curvature of first lens is R2, satisfies following relational expression: R2＜6[mm]; The above-mentioned relation formula can effectively be revised the astigmatism (Astigmatism) that the photo-optics lens combination produces.If it is make R2 satisfy following relational expression, then comparatively desirable: R2/f＜2.0.
In photo-optics lens combination of the present invention, the front surface radius-of-curvature of second lens is R3, satisfies following relational expression: | R3|＜1.2[mm]; The above-mentioned relation formula can effectively be revised the aberration that the photo-optics lens combination produces, and is if make R3 satisfy following relational expression, then comparatively desirable: | R3/f|＜0.45.
In photo-optics lens combination of the present invention, the center thickness of second lens is CT2, satisfies following relational expression: 0.25[mm]＜CT2＜0.4[mm]; If make the higher limit of CT2, then help reducing the total length of photo-optics lens combination, and can effectively promote the quality of image less than the above-mentioned relation formula.If make the lower limit of CT2, then can make its material homogenieity of eyeglass of plastics ejection formation preferable greater than the above-mentioned relation formula.
In photo-optics lens combination of the present invention, the mirror spacing between second lens and the 3rd lens is T23, satisfies following relational expression: T23＜0.1[mm]; Aforementioned relation can effectively reduce the total length of photo-optics lens combination.
In photo-optics lens combination of the present invention, the object of this photo-optics lens combination images in the sense electronics optical assembly, and the total length of photo-optics lens combination is TL, and the imaging of photo-optics lens combination is ImgH highly, satisfies following relational expression: TL/ImgH＜2.12; Above-mentioned relation can be kept the characteristic of photo-optics lens combination miniaturization.
Description of drawings
The present invention is further detailed explanation below in conjunction with accompanying drawing and embodiment:
Fig. 1 is the structural representation of the photo-optics lens combination of the embodiment of the invention 1;
Fig. 2 is the aberration curve figure of the photo-optics lens combination of the embodiment of the invention 1;
Fig. 3 is the structural representation of the photo-optics lens combination of the embodiment of the invention 2;
Fig. 4 is the aberration curve figure of the photo-optics lens combination of the embodiment of the invention 2;
Fig. 5 is the structural representation of the photo-optics lens combination of the embodiment of the invention 3;
Fig. 6 is the aberration curve figure of the photo-optics lens combination of the embodiment of the invention 3;
Fig. 7 is the structured data table of the embodiment of the invention 1;
Fig. 8 is the aspherical surface data table of the embodiment of the invention 1;
Fig. 9 is the structured data table of the embodiment of the invention 2;
Figure 10 is the aspherical surface data table of the embodiment of the invention 2;
Figure 11 is the structured data table of the embodiment of the invention 3;
Figure 12 is the aspherical surface data table of the embodiment of the invention 3;
Figure 13 is the numerical data table of the correlate equation of various embodiments of the present invention correspondence.
Embodiment
As depicted in figs. 1 and 2, the photo-optics lens combination mainly is made of the eyeglass of three pieces of tool refracting powers, extremely is followed successively by as side by the thing side:
The 3rd lens 30 of the positive refracting power of one tool, its front surface 31 is a convex surface, and rear surface 32 is a concave surface, and its material is plastics, and its front surface 31, rear surface 32 are all aspheric surface and all are provided with the point of inflexion;
The aperture 40 of one photo-optics lens combination is positioned at before first lens 10, is used to control the brightness of photo-optics lens combination;
Other includes an infrared ray filtering optical filter 50 (IR Filter), places after the 3rd lens 30, and it does not influence the focal length of system;
Other includes a photosensory assembly cover glass 60 (Sensor Cover Glass), places after the infrared ray filtering optical filter 50, and it does not influence the focal length of system;
One imaging surface 70 places after the photosensory assembly cover glass 60.
The equation of aforementioned aspheric curve is expressed as follows:
X(Y)＝(Y
2/R)/(1+sqrt(1-(1+k)*(Y/R)
2))+A
4*Y
4+A
6*Y
6+…
Wherein: X: the cross-sectional distance of eyeglass; Y: the point on the aspheric curve is apart from the height of optical axis; K: conical surface coefficient; A
4, A
6...: 4 rank, 6 rank ... asphericity coefficient.
In the photo-optics lens combination of present embodiment, the focal length of first lens is f1, and the focal length of second lens is f2, and the focal length of the 3rd lens is f3, the focal length of whole photo-optics lens combination is f, and its pass is: f/f1=1.17, | f/f2|=0.67 and f/f3=0.49.
In the photo-optics lens combination of present embodiment, the abbe number of first lens (Abbe Number) is V1, and the abbe number of second lens is V2, and the abbe number of the 3rd lens is V3, and its pass is: V1=60.3, V2=23.4 and V3=55.8.
In the photo-optics lens combination of present embodiment, the refractive index of first lens is N1, and the refractive index of second lens is N2, and its pass is: N1=1.543 and N2=1.632.
In the photo-optics lens combination of present embodiment, the front surface radius-of-curvature of first lens is R1, the rear surface radius-of-curvature of first lens is R2, the front surface radius-of-curvature of second lens is R3, the rear surface radius-of-curvature of second lens is R4, the front surface radius-of-curvature of the 3rd lens is R5, and the rear surface radius-of-curvature of the 3rd lens is R6, and its pass is: R1/R2=0.31, R3/R4=0.62 and R5/R6=0.71.
In the photo-optics lens combination of present embodiment, the mirror angle of the effective diameter position of the 3rd lens rear surface is ANG32, and its pass is: ANG32=-40.3[deg.].
The direction of mirror angle be defined as " when peripheral effective diameter angle to tiltedly just then being defined as, when peripheral effective diameter angle tiltedly then is defined as negative to the thing inclination as inclination ".
In the photo-optics lens combination of present embodiment, the rear surface radius-of-curvature of first lens is R2, the front surface radius-of-curvature of second lens is R3, the focal length of whole photo-optics lens combination is f, and its pass is: R2=3.15940[mm], | R3|=0.70263[mm], R2/f=1.11 and | R3/f|=0.25.
In the photo-optics lens combination of present embodiment, the center thickness of second lens is CT2, and the mirror spacing between second lens and the 3rd lens is T23, and its pass is: CT2=0.350[mm] and T23=0.070[mm].
In the photo-optics lens combination of present embodiment, the length overall of photo-optics lens combination is TL, and the imaging of photo-optics lens combination highly is ImgH, and its pass is: TL/ImgH=1.97.
The detailed structured data of present embodiment as shown in Figure 7, its aspherical surface data as shown in Figure 8, wherein, the unit of radius-of-curvature, thickness and focal length is mm, HFOV is defined as half of maximum visual angle.
As shown in Figure 3 and Figure 4, the photo-optics lens combination mainly is made of the eyeglass of three pieces of tool refracting powers, extremely is followed successively by as side by the thing side:
The 3rd lens 30 of the positive refracting power of one tool, its front surface 31 is a convex surface, and rear surface 32 is a concave surface, and its material is plastics, and its front surface 31, rear surface 32 are all aspheric surface and all are provided with the point of inflexion;
The aperture 40 of one photo-optics lens combination is positioned at before first lens 10, is used to control the brightness of photo-optics lens combination;
Other includes an infrared ray filtering optical filter 50 (IR Filter), places after the 3rd lens 30, and it does not influence the focal length of system;
Other includes a photosensory assembly cover glass 60 (Sensor Cover Glass), places after the infrared ray filtering optical filter 50, and it does not influence the focal length of system;
One imaging surface 70 places after the photosensory assembly cover glass 60.
The equation of the aspheric curve of present embodiment is represented with embodiment 1.
In the photo-optics lens combination of present embodiment, the focal length of first lens is f1, and the focal length of second lens is f2, and the focal length of the 3rd lens is f3, the focal length of whole photo-optics lens combination is f, and its pass is: f/f1=1.16, | f/f2|=0.73 and f/f3=0.52.
In the photo-optics lens combination of present embodiment, the abbe number of first lens (Abbe Number) is V1, and the abbe number of second lens is V2, and the abbe number of the 3rd lens is V3, and its pass is: V1=60.3, V2=30.2 and V3=55.8.
In the photo-optics lens combination of present embodiment, the refractive index of first lens is N1, and the refractive index of second lens is N2, and its pass is: N1=1.543 and N2=1.583.
In the photo-optics lens combination of present embodiment, the front surface radius-of-curvature of first lens is R1, the rear surface radius-of-curvature of first lens is R2, the front surface radius-of-curvature of second lens is R3, the rear surface radius-of-curvature of second lens is R4, the front surface radius-of-curvature of the 3rd lens is R5, and the rear surface radius-of-curvature of the 3rd lens is R6, and its pass is: R1/R2=0.28, R3/R4=0.58 and R5/R6=0.66.
In the photo-optics lens combination of present embodiment, the mirror angle of the effective diameter position of the 3rd lens rear surface is ANG32, and its pass is: ANG32=-35.3[deg.].
The direction definition of the mirror angle ANG32 of effective diameter position is with embodiment 1.
In the photo-optics lens combination of present embodiment, the rear surface radius-of-curvature of first lens is R2, the front surface radius-of-curvature of second lens is R3, the focal length of whole photo-optics lens combination is f, and its pass is: R2=3.73700[mm], | R3|=0.74301[mm], R2/f=1.29 and | R3/f|=0.26.
In the photo-optics lens combination of present embodiment, the center thickness of second lens is CT2, and the mirror spacing between second lens and the 3rd lens is T23, and its pass is: CT2=0.350[mm] and T23=0.070[mm].
In the photo-optics lens combination of present embodiment, the length overall of photo-optics lens combination is TL, and the imaging of photo-optics lens combination highly is ImgH, and its pass is: TL/ImgH=2.00.
The detailed structured data of present embodiment as shown in Figure 9, its aspherical surface data as shown in figure 10, wherein, the unit of radius-of-curvature, thickness and focal length is mm, HFOV is defined as half of maximum visual angle.
As shown in Figure 5 and Figure 6, the photo-optics lens combination mainly is made of the eyeglass of three pieces of tool refracting powers, extremely is followed successively by as side by the thing side:
The 3rd lens 30 of the positive refracting power of one tool, its front surface 31 is a convex surface, and rear surface 32 is a concave surface, and its material is plastics, and its front surface 31, rear surface 32 are all aspheric surface and the point of inflexion all are set;
The aperture 40 of one photo-optics lens combination is positioned at before first lens 10, is used to control the brightness of photo-optics lens combination;
Other includes an infrared ray filtering optical filter 50 (IR Filter), places after the 3rd lens 30, and it does not influence the focal length of system;
Other includes a photosensory assembly cover glass 60 (Sensor Cover Glass), places after the infrared ray filtering optical filter 50, and it does not influence the focal length of system;
One imaging surface 70 places after the photosensory assembly cover glass 60.
The equation of the aspheric curve of present embodiment is represented with embodiment 1.
In the photo-optics lens combination of present embodiment, the focal length of first lens is f1, and the focal length of second lens is f2, and the focal length of the 3rd lens is f3, the focal length of whole photo-optics lens combination is f, and its pass is: f/f1=1.15, | f/f2|=0.59 and f/f3=0.43.
In the photo-optics lens combination of present embodiment, the abbe number of first lens (Abbe Number) is V1, and the abbe number of second lens is V2, and the abbe number of the 3rd lens is V3, and its pass is: V1=60.3, V2=23.4 and V3=55.8.
In the photo-optics lens combination of present embodiment, the refractive index of first lens is N1, and the refractive index of second lens is N2, and its pass is: N1=1.543 and N2=1.632.
In the photo-optics lens combination of present embodiment, the front surface radius-of-curvature of first lens is R1, the rear surface radius-of-curvature of first lens is R2, the front surface radius-of-curvature of second lens is R3, the rear surface radius-of-curvature of second lens is R4, the front surface radius-of-curvature of the 3rd lens is R5, and the rear surface radius-of-curvature of the 3rd lens is R6, and its pass is: R1/R2=0.26, R3/R4=0.64 and R5/R6=0.70.
In the photo-optics lens combination of present embodiment, the mirror angle of the effective diameter position of the 3rd lens rear surface is ANG32, and its pass is: ANG32=-33.1[deg.].
The direction definition of the mirror angle ANG32 of effective diameter position is with embodiment 1.
In the photo-optics lens combination of present embodiment, the rear surface radius-of-curvature of first lens is R2, the front surface radius-of-curvature of second lens is R3, the focal length of whole photo-optics lens combination is f, and its pass is: R2=4.02870[mm], | R3|=0.72421[mm], R2/f=1.43 and | R3/f|=0.26.
In the photo-optics lens combination of present embodiment, the center thickness of second lens is CT2, and the mirror spacing between second lens and the 3rd lens is T23, and its pass is: CT2=0.350[mm] and T23=0.076[mm].
In the photo-optics lens combination of present embodiment, the length overall of photo-optics lens combination is TL, and the imaging of photo-optics lens combination highly is ImgH, and its pass is: TL/ImgH=2.00.
The detailed structured data of present embodiment as shown in figure 11, its aspherical surface data as shown in figure 12, wherein, the unit of radius-of-curvature, thickness and focal length is mm, HFOV is defined as half of maximum visual angle.
State clearly at this, Fig. 7 is to the different numerical value change tables that Figure 12 shows that photo-optics lens combination embodiment in advance, and the numerical value change of various embodiments of the present invention is all true tests gained, even use different numerical value, the product of same structure must belong to protection category of the present invention.Figure 13 is the numerical data of the corresponding correlate equation of the present invention of each embodiment.
In sum, the present invention is a photo-optics lens combination, and lens arrangement and arrangement mode can effectively dwindle mirror group volume by this, more can obtain higher resolving power simultaneously.
Claims (20)
1. a photo-optics lens combination is characterized in that, comprises the lens of three pieces of tool refracting powers, extremely is followed successively by as side by the thing side:
First lens of the positive refracting power of one tool, its front surface are that convex surface, rear surface are concave surface, and at least one surface is an aspheric surface;
Plastics second lens of the negative refracting power of one tool, its front surface is that concave surface, rear surface are convex surface, and its front surface, rear surface are all aspheric surface;
Plastics the 3rd lens of the positive refracting power of one tool, its front surface are that convex surface, rear surface are concave surface, and its front surface, rear surface are all aspheric surface; And
Other is provided with an aperture, is arranged at before these first lens, is used to control the brightness of photo-optics lens combination;
In this photo-optics lens combination, the focal length of these second lens is f2, and the focal length of whole photo-optics lens combination is f, satisfies following relational expression: 0.1＜| f/f2|＜0.74.
2. photo-optics lens combination as claimed in claim 1 is characterized in that, the material of described first lens is that plastics and its front surface, rear surface are all aspheric surface, and described the 3rd lens are provided with the point of inflexion.
3. photo-optics lens combination as claimed in claim 1 is characterized in that, the focal length of described second lens is f2, and the focal length of whole photo-optics lens combination is f, and both satisfy following relational expression: | f/f2|＜0.6.
4. photo-optics lens combination as claimed in claim 1 is characterized in that the abbe number of described second lens is V2, satisfies following note relational expression: V2＜40.
5. photo-optics lens combination as claimed in claim 4 is characterized in that the abbe number of described second lens is V2, satisfies following relational expression: V2＜28.
6. photo-optics lens combination as claimed in claim 5 is characterized in that the abbe number of described second lens is V2, satisfies following relational expression: V2＜25.
7. photo-optics lens combination as claimed in claim 2, it is characterized in that, the refractive index of described first lens is N1, the abbe number of described first lens is V1, and the refractive index of described second lens is N2, and the abbe number of described the 3rd lens is V3, satisfy following relational expression: N1＜1.6, V1＞50, N2＜1.7, V3＞50.
8. photo-optics lens combination as claimed in claim 5 is characterized in that, the focal length of described second lens is f2, and the focal length of whole photo-optics lens combination is f, and both satisfy following relational expression: | f/f2|＞0.3.
9. photo-optics lens combination as claimed in claim 1 is characterized in that, the front surface radius-of-curvature of described first lens is R1, and the rear surface radius-of-curvature of described first lens is R2, and both satisfy following relational expression: 0.05＜R1/R2＜0.5.
10. photo-optics lens combination as claimed in claim 9 is characterized in that, the front surface radius-of-curvature of described first lens is R1, and the rear surface radius-of-curvature of described first lens is R2, and both satisfy following relational expression: 0.25＜R1/R2＜0.45.
11. photo-optics lens combination as claimed in claim 9, it is characterized in that, the rear surface radius-of-curvature of described first lens is R2, the front surface radius-of-curvature of described second lens is R3, the rear surface radius-of-curvature of described second lens is R4, satisfy following relational expression: R2/f＜2.0, | R3/f|＜0.45,0.3＜R3/R4＜0.8.
12. photo-optics lens combination as claimed in claim 11, it is characterized in that, the front surface radius-of-curvature of described second lens is R3, the rear surface radius-of-curvature of described second lens is R4, the front surface radius-of-curvature of described the 3rd lens is R5, the rear surface radius-of-curvature of described the 3rd lens is R6, satisfies following relational expression: 0.5＜R3/R4＜0.65,0.55＜R5/R6＜0.75.
13. photo-optics lens combination as claimed in claim 2 is characterized in that, the focal length of described the 3rd lens is f3, and whole photo-optics lens combination focal length is f, and both satisfy following relational expression: f/f3＞0.35.
14. photo-optics lens combination as claimed in claim 5 is characterized in that the center thickness of described second lens is CT2, satisfies following relational expression: 0.25mm＜CT2＜0.4mm.
15. photo-optics lens combination as claimed in claim 14 is characterized in that, the mirror spacing between described second lens and described the 3rd lens is T23, satisfies following relational expression: T23＜0.1mm.
16. photo-optics lens combination as claimed in claim 5 is characterized in that, the focal length of described first lens is f1, and the focal length of whole photo-optics lens combination is f, and both satisfy following relational expression: f/f1＞0.9.
17. photo-optics lens combination as claimed in claim 16 is characterized in that, the focal length of described first lens is f1, and the focal length of whole photo-optics lens combination is f, and both satisfy following relational expression: 1.1＜f/f1＜2.0.
18. photo-optics lens combination as claimed in claim 9 is characterized in that, the rear surface radius-of-curvature of described first lens is R2, and the front surface radius-of-curvature of described second lens is R3, satisfies following relational expression: R2＜6mm, | R3＜1.2mm.
19. photo-optics lens combination as claimed in claim 5, it is characterized in that, the object of described photo-optics lens combination images in the sense electronics optical assembly, and the length overall of this photo-optics lens combination is TL, the imaging of this photo-optics lens combination highly is ImgH, and both satisfy following relational expression: TL/ImgH＜2.12.
20. photo-optics lens combination as claimed in claim 9 is characterized in that, the mirror angle of the effective diameter position of described the 3rd lens rear surface is ANG32, satisfy following relational expression: ANG32＜-32[deg.].
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| CN2007100083042A CN101226271B (en) | 2007-01-16 | 2007-01-16 | Photographic optical lens assembly |
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| CN2007100083042A CN101226271B (en) | 2007-01-16 | 2007-01-16 | Photographic optical lens assembly |
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| CN101226271A true CN101226271A (en) | 2008-07-23 |
| CN101226271B CN101226271B (en) | 2010-09-08 |
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| WO2011147136A1 (en) * | 2010-05-28 | 2011-12-01 | 浙江舜宇光学有限公司 | Micro camera lens |
| CN102313971A (en) * | 2010-06-30 | 2012-01-11 | 一品光学工业股份有限公司 | Optical image pickup lens with three lenses |
| CN102466851A (en) * | 2010-11-03 | 2012-05-23 | 大立光电股份有限公司 | Optical imaging lens |
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| WO2019210736A1 (en) * | 2018-05-04 | 2019-11-07 | 浙江舜宇光学有限公司 | Projection lens |
| CN110515179A (en) * | 2019-08-16 | 2019-11-29 | 瑞声通讯科技(常州)有限公司 | Camera optical camera lens |
| CN111077642A (en) * | 2019-12-23 | 2020-04-28 | 瑞声通讯科技(常州)有限公司 | Image pickup optical lens |
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| CN100498410C (en) * | 2005-05-30 | 2009-06-10 | 大立光电股份有限公司 | Camera lens group of three pieces type |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011147136A1 (en) * | 2010-05-28 | 2011-12-01 | 浙江舜宇光学有限公司 | Micro camera lens |
| CN102439505A (en) * | 2010-05-28 | 2012-05-02 | 浙江舜宇光学有限公司 | Micro camera lens |
| CN102439505B (en) * | 2010-05-28 | 2015-08-12 | 浙江舜宇光学有限公司 | A kind of micro pick-up lens |
| CN102313971A (en) * | 2010-06-30 | 2012-01-11 | 一品光学工业股份有限公司 | Optical image pickup lens with three lenses |
| CN102313971B (en) * | 2010-06-30 | 2013-05-08 | 一品光学工业股份有限公司 | Optical image pickup lens with three lenses |
| CN102466851A (en) * | 2010-11-03 | 2012-05-23 | 大立光电股份有限公司 | Optical imaging lens |
| CN102466851B (en) * | 2010-11-03 | 2014-07-30 | 大立光电股份有限公司 | Optical imaging lens |
| CN104536119A (en) * | 2012-03-09 | 2015-04-22 | 大立光电股份有限公司 | Image capturing lens system |
| WO2019210736A1 (en) * | 2018-05-04 | 2019-11-07 | 浙江舜宇光学有限公司 | Projection lens |
| CN110515179A (en) * | 2019-08-16 | 2019-11-29 | 瑞声通讯科技(常州)有限公司 | Camera optical camera lens |
| CN111077642A (en) * | 2019-12-23 | 2020-04-28 | 瑞声通讯科技(常州)有限公司 | Image pickup optical lens |
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