TWM532034U - Miniaturized five-piece imaging lens - Google Patents
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- TWM532034U TWM532034U TW105210047U TW105210047U TWM532034U TW M532034 U TWM532034 U TW M532034U TW 105210047 U TW105210047 U TW 105210047U TW 105210047 U TW105210047 U TW 105210047U TW M532034 U TWM532034 U TW M532034U
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本創作是關於一種光學系統，特別是關於一種具有小型化特性的五片式成像鏡頭。This creation relates to an optical system, and more particularly to a five-piece imaging lens having miniaturization characteristics.
五片式成像鏡頭是光學系統中常見的結構，此類鏡頭早期是以全球面的玻璃鏡片製造，而有無法有效縮短鏡頭尺寸的缺點。目前，由於非球面鏡片的製造技術已提升許多，因此非球面鏡片已廣泛應用於此類鏡頭，其有助於縮小鏡頭尺寸，並希望能藉此修正系統像差，實現小尺寸、高解像力的效果，而如何將這些特點加以實現，則是值得本領域人士思量的課題。The five-piece imaging lens is a common structure in optical systems. Such lenses were originally manufactured with global glass lenses, and have the disadvantage of not effectively reducing the size of the lens. At present, aspherical lenses have been widely used in such lenses, and aspherical lenses have been widely used in such lenses, which contribute to reducing the size of the lens, and it is desired to correct system aberrations to achieve small size and high resolution. The effect, and how to achieve these characteristics, is worthy of consideration in this field.
本創作之主要目的在於提供一種具有小型化及高解像力特性的五片式成像鏡頭。The main purpose of this creation is to provide a five-piece imaging lens with miniaturization and high resolution.
為了達成上述及其他目的，本創作提供一種小型化五片式成像鏡頭，其由物側至像側依序包括一第一鏡片、一第二鏡片、一光圈、一第三鏡片、一第四鏡片及一第五鏡片。第一鏡片具有負屈光力，其物側面為凸面且像側面為凹面。第二鏡片具有正屈光力。第三鏡片具有負屈光力，其物側面及像側面均為凹面。第四鏡片具有正屈光力，其物側面及像側面均為凸面。第五鏡片具有負屈光力，其物側面為凸面且像側面為凹面。其中，小型化五片式成像鏡頭還滿足下列關係式：5.8≤(F1∙F2)/F3≤8.5；其中F2為該第二鏡片的焦距值，F3為該第三鏡片的焦距值。藉此，除兼顧小型化及高解像力特性之外，還能進一步使系統具有較低的像差。In order to achieve the above and other objects, the present invention provides a miniaturized five-piece imaging lens that sequentially includes a first lens, a second lens, an aperture, a third lens, and a fourth from the object side to the image side. Lens and a fifth lens. The first lens has a negative refractive power, the object side is convex and the image side is concave. The second lens has a positive refractive power. The third lens has a negative refractive power, and both the object side and the image side surface are concave. The fourth lens has a positive refractive power, and both the object side and the image side surface are convex. The fifth lens has a negative refractive power, and the object side surface is convex and the image side surface is concave. Among them, the miniaturized five-piece imaging lens also satisfies the following relationship: 5.8 ≤ (F1 ∙ F2) / F3 ≤ 8.5; wherein F2 is the focal length value of the second lens, and F3 is the focal length value of the third lens. Thereby, in addition to the miniaturization and high resolution characteristics, the system can be further made to have lower aberrations.
為了達成上述及其他目的，本創作還提供一種小型化五片式成像鏡頭，其由物側至像側依序包括一第一鏡片、一第二鏡片、一光圈、一第三鏡片、一第四鏡片及一第五鏡片。第一鏡片具有負屈光力，其物側面曲率半徑為正值，且其物側面的曲率半徑大於像側面的曲率半徑。第二鏡片具有正屈光力，其物側面的曲率半徑與像側面的曲率半徑的乘積為負值。第三鏡片具有負屈光力，其物側面的曲率半徑小於像側面的曲率半徑，且其物側面的曲率半徑為負值。第四鏡片具有正屈光力，其物側面的曲率半徑大於像側面的曲率半徑，且其像側面的曲率半徑為負值。第五鏡片具有負屈光力，其物側面曲率半徑為正值，且其物側面的曲率半徑大於像側面的曲率半徑。其中，小型化五片式成像鏡頭還滿足下列關係式：5.8≤(F1∙F2)/F3≤8.5；其中F2為該第二鏡片的焦距值，F3為該第三鏡片的焦距值。藉此，除兼顧小型化及高解像力特性之外，還能進一步使系統具有較低的像差。In order to achieve the above and other objects, the present invention also provides a miniaturized five-piece imaging lens, which includes a first lens, a second lens, an aperture, a third lens, and a second from the object side to the image side. Four lenses and a fifth lens. The first lens has a negative refractive power, and the radius of curvature of the object side surface is a positive value, and the radius of curvature of the object side surface is larger than the radius of curvature of the image side surface. The second lens has a positive refractive power, and the product of the radius of curvature of the object side surface and the radius of curvature of the image side surface is a negative value. The third lens has a negative refractive power, and the radius of curvature of the object side surface is smaller than the radius of curvature of the image side surface, and the radius of curvature of the object side surface is a negative value. The fourth lens has a positive refractive power, and a radius of curvature of the object side surface is larger than a curvature radius of the image side surface, and a curvature radius of the image side surface thereof is a negative value. The fifth lens has a negative refractive power, and the radius of curvature of the object side surface is a positive value, and the radius of curvature of the object side surface is larger than the radius of curvature of the image side surface. Among them, the miniaturized five-piece imaging lens also satisfies the following relationship: 5.8 ≤ (F1 ∙ F2) / F3 ≤ 8.5; wherein F2 is the focal length value of the second lens, and F3 is the focal length value of the third lens. Thereby, in addition to the miniaturization and high resolution characteristics, the system can be further made to have lower aberrations.
前述小型化五片式成像鏡頭中，第二鏡片的物側面及像側面均可為凸面。In the above-described miniaturized five-piece imaging lens, the object side surface and the image side surface of the second lens may be convex surfaces.
前述小型化五片式成像鏡頭更可滿足下列關係式：1.8≤R1/F≤3；其中R1為第一鏡片物側面的曲率半徑，藉此修正第一鏡片可能產生的像差。The aforementioned miniaturized five-piece imaging lens can further satisfy the following relationship: 1.8 ≤ R1/F ≤ 3; wherein R1 is the radius of curvature of the side of the first lens object, thereby correcting the aberration that may be generated by the first lens.
前述小型化五片式成像鏡頭更可滿足下列關係式：-5.7≤(F3∙F4)/F≤-4；其中F3為該第三鏡片的焦距值，藉此使系統具有較低的製造敏感度。The aforementioned miniaturized five-piece imaging lens can satisfy the following relationship: -5.7 ≤ (F3 ∙ F4) / F ≤ -4; wherein F3 is the focal length value of the third lens, thereby making the system have lower manufacturing sensitivity degree.
前述小型化五片式成像鏡頭更可滿足下列關係式：-9＜(F1∙F4)/F＜-5.5；其中F1為該第一鏡片的焦距值，F4為該第四鏡片的焦距值，F為該小型化五片式成像鏡頭的系統焦距值，藉此修正畸變。The aforementioned miniaturized five-piece imaging lens can satisfy the following relationship: -9<(F1∙F4)/F<-5.5; wherein F1 is the focal length value of the first lens, and F4 is the focal length value of the fourth lens. F is the system focal length value of the miniaturized five-piece imaging lens, thereby correcting the distortion.
前述小型化五片式成像鏡頭更可滿足下列關係式：2.5≤vd1-vd2≤6.5；其中vd1為第一鏡片的色散係數，vd2為第二鏡片的色散係數，藉此修正系統的色差。The aforementioned miniaturized five-piece imaging lens can satisfy the following relationship: 2.5 ≤ vd1 - vd2 ≤ 6.5; wherein vd1 is the dispersion coefficient of the first lens, and vd2 is the dispersion coefficient of the second lens, thereby correcting the chromatic aberration of the system.
前述小型化五片式成像鏡頭中，第一、第二鏡片可為玻璃鏡片且雙面均為球面，第三至第五鏡片可為塑膠鏡片且雙面均為非球面。In the miniaturized five-piece imaging lens, the first and second lenses may be glass lenses and both sides are spherical, and the third to fifth lenses may be plastic lenses and both sides are aspherical.
前述小型化五片式成像鏡頭更可滿足下列關係式：0.55＜R2/F＜0.65 、 0.9＜R3/F＜1.25 、 -1.5＜R4/F＜-1.2 、 -5.2＜R5/F＜-1.8 、1＜R6/F＜1.7 、 1.4＜R7/F＜1.95 、 -0.5＜R8/F＜-0.4 、 0.5＜R9/F＜0.7 、 0.2＜R10/F＜0.4 、-0.75＜F/F1＜-0.5、0.8＜F/F2＜1.05、-0.9＜F/F3＜-0.6、1.2＜F/F4＜1.45、 -0.9＜F/F5＜-0.4 、 2.4＜ALT/Gaa＜4；其中R2為該第一鏡片像側面的曲率半徑，R3為該第二鏡片物側面的曲率半徑，R4為該第二鏡片像側面的曲率半徑，R5為該第三鏡片物側面的曲率半徑，R6為該第三鏡片像側面的曲率半徑，R7為該第四鏡片物側面的曲率半徑，R8為該第四鏡片像側面的曲率半徑，R9為該第五鏡片物側面的曲率半徑，R10為該第五鏡片像側面的曲率半徑，F2為該第二鏡片的焦距值，F3為該第三鏡片的焦距值，F5為該第五鏡片的焦距值，ALT為該第一至第五鏡片在一光軸上的厚度總和，Gaa為該第一至第五鏡片在該光軸上的間隙長度總和。藉此使該小型化五片式成像鏡頭具有小型化及高解像力的特性。The aforementioned miniaturized five-piece imaging lens can satisfy the following relationship: 0.55<R2/F<0.65, 0.9<R3/F<1.25, -1.5<R4/F<-1.2, -5.2<R5/F<-1.8 , 1<R6/F<1.7, 1.4<R7/F<1.95, -0.5<R8/F<-0.4, 0.5<R9/F<0.7, 0.2<R10/F<0.4, -0.75<F/F1< -0.5, 0.8<F/F2<1.05, -0.9<F/F3<-0.6, 1.2<F/F4<1.45, -0.9<F/F5<-0.4, 2.4<ALT/Gaa<4; where R2 is a radius of curvature of the side surface of the first lens image, R3 is a radius of curvature of a side surface of the second lens object, R4 is a radius of curvature of a side surface of the second lens image, R5 is a radius of curvature of a side surface of the third lens object, and R6 is the first radius The radius of curvature of the side surface of the three lens image, R7 is the radius of curvature of the side surface of the fourth lens object, R8 is the radius of curvature of the side surface of the fourth lens image, R9 is the radius of curvature of the side surface of the fifth lens object, and R10 is the fifth lens. Like the radius of curvature of the side, F2 is the focal length value of the second lens, F3 is the focal length value of the third lens, F5 is the focal length value of the fifth lens, and ALT is the first to fifth lenses on an optical axis. The sum of the thicknesses, Gaa is the first To the sum of the fifth lens on the optical axis of the gap length. Thereby, the miniaturized five-piece imaging lens has the characteristics of miniaturization and high resolution.
請參考第1圖，所繪示者為本創作的第一實施例，該小型化五片式成像鏡頭（下稱五片式鏡頭）在光軸L上由物側A至像側B依序包括一第一鏡片10、一第二鏡片20、一光圈ST、一第三鏡片30、一第四鏡片40及一第五鏡片50，於像側B處設有CCD、CMOS或其他感光元件（未繪示），於感光元件與第五鏡片50之間可設有濾光片及/或保護玻璃等平板鏡片60，平板鏡片60的數量可依需求增減或不設置。Please refer to FIG. 1 , which is a first embodiment of the creation. The miniaturized five-piece imaging lens (hereinafter referred to as a five-piece lens) is sequentially arranged on the optical axis L from the object side A to the image side B. The invention includes a first lens 10, a second lens 20, a diaphragm ST, a third lens 30, a fourth lens 40 and a fifth lens 50, and is provided with a CCD, CMOS or other photosensitive element on the image side B ( Not shown, a flat lens 60 such as a filter and/or a cover glass may be disposed between the photosensitive element and the fifth lens 50. The number of the flat lenses 60 may be increased or decreased or not set as needed.
本實施例中，第一鏡片10具有負屈光力，其物側面為凸面且像側面為凹面，且其物側面的曲率半徑大於像側面的曲率半徑，玻璃製成的第一鏡片10的物側面及像側面均可為球面，藉此增加本系統的視角。本文中，當一曲面的曲面圓心較該曲面本身更靠近像側時，則該曲面之曲率半徑為正值；反之，當一曲面的曲面圓心較該曲面本身更靠近物側時，則該曲面之曲率半徑為負值。In this embodiment, the first lens 10 has a negative refractive power, the object side surface is convex and the image side surface is concave, and the curvature radius of the object side surface is larger than the curvature radius of the image side surface, and the object side surface of the first lens 10 made of glass and The side of the image can be spherical, thereby increasing the viewing angle of the system. In this paper, when the surface center of a curved surface is closer to the image side than the surface itself, the curvature radius of the surface is positive; otherwise, when the surface center of a curved surface is closer to the object side than the surface itself, the surface is The radius of curvature is negative.
第二鏡片20具有正屈光力，其物側面及像側面均為凸面，此時其物側面的曲率半徑與像側面的曲率半徑的乘積為負值，玻璃製成的第二鏡片20的物側面及像側面均可為球面。藉此，第二鏡片20可提供系統主要的屈光力。The second lens 20 has a positive refractive power, and the object side surface and the image side surface are both convex surfaces. At this time, the product of the curvature radius of the object side surface and the curvature radius of the image side surface is a negative value, and the object side surface of the second lens 20 made of glass and The sides can be spherical. Thereby, the second lens 20 can provide the main refractive power of the system.
第三鏡片30具有負屈光力，其物側面及像側面均為凹面，亦即其物側面的曲率半徑小於像側面的曲率半徑，塑膠製成的第三鏡片30的物側面及像側面均可為非球面，藉此有效降低橫向色差。The third lens 30 has a negative refractive power, and the object side surface and the image side surface are both concave surfaces, that is, the curvature radius of the object side surface is smaller than the curvature radius of the image side surface, and the object side surface and the image side surface of the third lens 30 made of plastic may be Aspherical surface, thereby effectively reducing lateral chromatic aberration.
第四鏡片40具有正屈光力，其物側面及像側面均為凸面而為一雙凸鏡片，亦即其物側面的曲率半徑為正值且大於像側面的曲率半徑，塑膠製成的第四鏡片40的物側面及像側面均可為非球面。藉此，第四鏡片40可用以降低系統像散。The fourth lens 40 has a positive refractive power, and the object side surface and the image side surface are convex surfaces and are a lenticular lens, that is, the radius of curvature of the object side surface is positive and larger than the curvature radius of the image side surface, and the fourth lens made of plastic is used. The object side and the image side of 40 may be aspherical. Thereby, the fourth lens 40 can be used to reduce system astigmatism.
第五鏡片50具有負屈光力，其物側面為凸面且像側面為凹面，亦即其物側面的曲率半徑大於像側面的曲率半徑，塑膠製成的第五鏡片50的物側面及像側面均可為非球面，且第五鏡片50物側面及像側面中具有至少一反曲點，藉此有效降低系統場曲。The fifth lens 50 has a negative refractive power, and the object side surface is convex and the image side surface is concave, that is, the curvature radius of the object side surface is larger than the curvature radius of the image side surface, and the object side surface and the image side surface of the fifth lens 50 made of plastic can be It is an aspherical surface, and the fifth lens 50 has at least one inflection point in the object side and the image side surface, thereby effectively reducing the system field curvature.
本實施例的五片式鏡頭的設計參數如下表一所示：The design parameters of the five-piece lens of this embodiment are as shown in Table 1 below:
表一 Table I
本實施例中，第三至第五鏡片30、40、50的物側面及像側面均為非球面，其面型滿足下列非球面公式： In this embodiment, the object side surface and the image side surface of the third to fifth lenses 30, 40, 50 are aspherical surfaces, and the surface shape thereof satisfies the following aspherical formula:
其中c=1/r，r為表面曲率半徑，h為光線在此表面的高度，k為錐面係數，B為第四階係數，C為第六階係數，D為第八階係數，E為第十階係數，F為第十二階係數，G為第十四階係數。第一實施例各非球面之參數如下表二所示：Where c=1/r, r is the radius of curvature of the surface, h is the height of the light on the surface, k is the cone coefficient, B is the fourth-order coefficient, C is the sixth-order coefficient, and D is the eighth-order coefficient, E For the tenth order coefficient, F is the twelfth order coefficient and G is the fourteenth order coefficient. The parameters of each aspheric surface of the first embodiment are as shown in Table 2 below:
表二 Table II
基於前述設計，本實施例的系統焦距值F為5.015 mm，系統長度為16.5 mm，第一鏡片焦距值為-9.06 mm，第二鏡片焦距值為-5.81 mm，第三鏡片焦距值為-7.19 mm，第四鏡片焦距值為3.55 mm，第五鏡片焦距值為-6.31 mm。Based on the foregoing design, the system focal length value F of the present embodiment is 5.015 mm, the system length is 16.5 mm, the first lens focal length value is -9.06 mm, the second lens focal length value is -5.81 mm, and the third lens focal length value is -7.99. Mm, the focal length of the fourth lens is 3.55 mm, and the focal length of the fifth lens is -6.31 mm.
此時，五片式鏡頭各項關係式的數值如下表三所示：At this time, the values of the relationship of the five-piece lens are as shown in Table 3 below:
表三 Table 3
如此一來，五片式鏡頭具有小型化、高解像力且畸變較小的特性，其場曲及畸變圖如第1A圖所示，最大場曲值不超過0.6 mm，最大畸變量均約在±1％或更小，其不同像高處的橫向色差圖如第1B圖所示，可見在不同像高處均有良好的色差表現。In this way, the five-piece lens has the characteristics of miniaturization, high resolution and small distortion. The field curvature and distortion map are as shown in Fig. 1A. The maximum field curvature value does not exceed 0.6 mm, and the maximum distortion is about ± 1% or less, the lateral chromatic aberration diagram of different image heights is as shown in Fig. 1B, and it can be seen that there are good chromatic aberration performances at different image heights.
請參考第2圖，所繪示者為本創作的第二實施例，其鏡片配置與第一實施例相似，本實施例的五片式鏡頭的設計參數如下表四所示：Please refer to FIG. 2 , which is a second embodiment of the present invention. The lens configuration is similar to that of the first embodiment. The design parameters of the five-piece lens of this embodiment are as shown in Table 4 below:
表四 Table 4
本實施例中，第三至第五鏡片30、40、50的物側面及像側面均為非球面，其面型滿足上列非球面公式，且第二實施例各非球面之參數如下表五所示：In this embodiment, the object side surface and the image side surface of the third to fifth lenses 30, 40, 50 are all aspherical surfaces, and the surface shape thereof satisfies the above aspherical surface formula, and the parameters of the aspheric surfaces of the second embodiment are as follows: Shown as follows:
表五 Table 5
基於前述設計，本實施例的系統焦距值F為5.05 mm，系統長度為16.5 mm，第一鏡片焦距值為-8.89 mm，第二鏡片焦距值為5.86 mm，第三鏡片焦距值為-7.63 mm，第四鏡片焦距值為3.67 mm，第五鏡片焦距值為-6.76 mm。Based on the foregoing design, the focal length value F of the present embodiment is 5.05 mm, the length of the system is 16.5 mm, the focal length of the first lens is -0.89 mm, the focal length of the second lens is 5.86 mm, and the focal length of the third lens is -7.63 mm. The fourth lens focal length value is 3.67 mm, and the fifth lens focal length value is -6.76 mm.
此時，五片式鏡頭各項關係式的數值如下表六所示：At this time, the values of the relationship of the five-piece lens are as shown in Table 6 below:
表六 Table 6
如此一來，五片式鏡頭具有小型化、高解像力且畸變較小的特性，其場曲及畸變圖如第2A圖所示，最大場曲值不超過0.6 mm，最大畸變量均約在±1％或更小，其不同像高處的橫向色差圖如第2B圖所示，可見在不同像高處均有良好的色差表現。In this way, the five-piece lens has the characteristics of miniaturization, high resolution and small distortion. The field curvature and distortion map are as shown in Fig. 2A. The maximum field curvature value does not exceed 0.6 mm, and the maximum distortion is about ± 1% or less, the lateral chromatic aberration diagram of different image heights is as shown in Fig. 2B, and it can be seen that there are good chromatic aberration performances at different image heights.
請參考第3圖，所繪示者為本創作的第三實施例，其鏡片配置與第一實施例相似，本實施例的五片式鏡頭的設計參數如下表七所示：Please refer to FIG. 3 , which is a third embodiment of the present invention. The lens configuration is similar to that of the first embodiment. The design parameters of the five-piece lens of this embodiment are as shown in Table 7 below:
表七 Table 7
本實施例中，第三至第五鏡片30、40、50的物側面及像側面均為非球面，其面型滿足上列非球面公式，且第三實施例各非球面之參數如下表八所示：In this embodiment, the object side surface and the image side surface of the third to fifth lenses 30, 40, 50 are all aspherical surfaces, and the surface shape thereof satisfies the above aspherical surface formula, and the parameters of the aspheric surfaces of the third embodiment are as follows. Shown as follows:
表八 Table eight
基於前述設計，本實施例的系統焦距值F為5.03 mm，系統長度為16.77 mm，第一鏡片焦距值為-8.31 mm，第二鏡片焦距值為5.39 mm，第三鏡片焦距值為-6.54 mm，第四鏡片焦距值為4 mm，第五鏡片焦距值為-8.43 mm。Based on the foregoing design, the system focal length value F of the present embodiment is 5.03 mm, the system length is 16.77 mm, the first lens focal length value is -8.31 mm, the second lens focal length value is 5.39 mm, and the third lens focal length value is -6.54 mm. The fourth lens has a focal length of 4 mm and the fifth lens has a focal length of -8.43 mm.
此時，五片式鏡頭各項關係式的數值如下表九所示：At this time, the values of the relationship of the five-piece lens are as shown in Table 9 below:
表九 Table 9
如此一來，五片式鏡頭具有小型化、高解像力且畸變較小的特性，其場曲及畸變圖如第3A圖所示，最大場曲值不超過0.4 mm，最大畸變量均約在±1.5％或更小，其不同像高處的橫向色差圖如第3B圖所示，可見在不同像高處均有良好的色差表現。In this way, the five-piece lens has the characteristics of miniaturization, high resolution and small distortion. The field curvature and distortion map are as shown in Fig. 3A. The maximum field curvature value does not exceed 0.4 mm, and the maximum distortion is about ± 1.5% or less, the lateral chromatic aberration diagram of different image heights, as shown in Fig. 3B, shows good chromatic aberration performance at different image heights.
請參考第4圖，所繪示者為本創作的第四實施例，其鏡片配置與第一實施例相似，本實施例的五片式鏡頭的設計參數如下表十所示：Please refer to FIG. 4 , which is a fourth embodiment of the present invention. The lens configuration is similar to that of the first embodiment. The design parameters of the five-piece lens of this embodiment are as shown in Table 10 below:
表十 Table ten
本實施例中，第三至第五鏡片30、40、50的物側面及像側面均為非球面，其面型滿足上列非球面公式，且第四實施例各非球面之參數如下表十一所示：In this embodiment, the object side surface and the image side surface of the third to fifth lenses 30, 40, 50 are all aspherical surfaces, and the surface shape thereof satisfies the above aspherical surface formula, and the parameters of the aspheric surfaces of the fourth embodiment are as follows: One:
表十一 Table XI
基於前述設計，本實施例的系統焦距值F為5.13 mm，系統長度為17.17 mm，第一鏡片焦距值為-10.06 mm，第二鏡片焦距值為5.77 mm，第三鏡片焦距值為-6.91 mm，第四鏡片焦距值為4 mm，第五鏡片焦距值為-8.34 mm。Based on the foregoing design, the system focal length value F of the present embodiment is 5.13 mm, the system length is 17.17 mm, the first lens focal length value is -1.06 mm, the second lens focal length value is 5.77 mm, and the third lens focal length value is -6.91 mm. The fourth lens has a focal length of 4 mm and the fifth lens has a focal length of -8.34 mm.
此時，五片式鏡頭各項關係式的數值如下表十二所示：At this time, the values of the relationship of the five-piece lens are as shown in Table 12 below:
表十二 Table 12
如此一來，五片式鏡頭具有小型化、高解像力且畸變較小的特性，其場曲及畸變圖如第4A圖所示，最大場曲值不超過0.8 mm，最大畸變量均約在±1.5％或更小，其不同像高處的橫向色差圖如第4B圖所示，可見在不同像高處均有良好的色差表現。As a result, the five-piece lens has the characteristics of miniaturization, high resolution and small distortion. The field curvature and distortion map are as shown in Fig. 4A. The maximum field curvature value does not exceed 0.8 mm, and the maximum distortion is about ± 1.5% or less, the lateral chromatic aberration diagram of different image heights is as shown in Fig. 4B, and it can be seen that there are good chromatic aberration performances at different image heights.
請參考第5圖，所繪示者為本創作的第五實施例，其鏡片配置與第一實施例相似，本實施例的五片式鏡頭的設計參數如下表十三所示：Please refer to FIG. 5 , which is a fifth embodiment of the present invention. The lens configuration is similar to that of the first embodiment. The design parameters of the five-piece lens of this embodiment are as shown in Table 13 below:
表十三 Table thirteen
本實施例中，第三至第五鏡片30、40、50的物側面及像側面均為非球面，其面型滿足上列非球面公式，且第五實施例各非球面之參數如下表十四所示：In this embodiment, the object side surface and the image side surface of the third to fifth lenses 30, 40, 50 are all aspherical surfaces, and the surface shape thereof satisfies the above aspherical surface formula, and the parameters of the aspheric surfaces of the fifth embodiment are as follows: Four:
表十四 Table fourteen
基於前述設計，本實施例的系統焦距值F為5.11 mm，系統長度為16.85 mm，第一鏡片焦距值為-7.32 mm，第二鏡片焦距值為5.18 mm，第三鏡片焦距值為-6.39 mm，第四鏡片焦距值為4.13 mm，第五鏡片焦距值為-10.08 mm。Based on the foregoing design, the focal length value F of the present embodiment is 5.11 mm, the length of the system is 16.85 mm, the focal length of the first lens is -7.32 mm, the focal length of the second lens is 5.18 mm, and the focal length of the third lens is -6.39 mm. The fourth lens has a focal length of 4.13 mm and the fifth lens has a focal length of -10.08 mm.
此時，五片式鏡頭各項關係式的數值如下表十五所示：At this time, the values of the relationship of the five-piece lens are as shown in Table 15 below:
表十五 Table fifteen
如此一來，五片式鏡頭具有小型化、高解像力且畸變較小的特性，其場曲及畸變圖如第4A圖所示，最大場曲值不超過0.6 mm，最大畸變量均約在±1.5％或更小，其不同像高處的橫向色差圖如第4B圖所示，可見在不同像高處均有良好的色差表現。In this way, the five-piece lens has the characteristics of miniaturization, high resolution and small distortion. The field curvature and distortion map are as shown in Fig. 4A. The maximum field curvature value does not exceed 0.6 mm, and the maximum distortion is about ± 1.5% or less, the lateral chromatic aberration diagram of different image heights is as shown in Fig. 4B, and it can be seen that there are good chromatic aberration performances at different image heights.
10‧‧‧第一鏡片
20‧‧‧第二鏡片
30‧‧‧第三鏡片
40‧‧‧第四鏡片
50‧‧‧第五鏡片
60‧‧‧平板鏡片
A‧‧‧物側
B‧‧‧像側
ST‧‧‧光圈
L‧‧‧光軸10‧‧‧ first lens
20‧‧‧second lens
30‧‧‧ third lens
40‧‧‧Fourth lens
50‧‧‧ fifth lens
60‧‧‧ flat lenses
A‧‧‧ object side
B‧‧‧ image side
ST‧‧‧ aperture
L‧‧‧ optical axis
第1圖為本創作第一實施例的示意圖。Figure 1 is a schematic view of the first embodiment of the creation.
第1A圖為本創作第一實施例的場曲及畸變圖。Fig. 1A is a field curvature and distortion diagram of the first embodiment of the creation.
第1B圖為本創作第一實施例在不同像高處的橫向色差圖。Fig. 1B is a lateral chromatic aberration diagram of the first embodiment at different image heights.
第2圖為本創作第二實施例的示意圖。Fig. 2 is a schematic view showing a second embodiment of the creation.
第2A圖為本創作第二實施例的場曲及畸變圖。Fig. 2A is a field curvature and distortion diagram of the second embodiment of the present invention.
第2B圖為本創作第二實施例在不同像高處的橫向色差圖。Fig. 2B is a lateral chromatic aberration diagram of the second embodiment of the present invention at different image heights.
第3圖為本創作第三實施例的示意圖。Figure 3 is a schematic view of a third embodiment of the creation.
第3A圖為本創作第三實施例的場曲及畸變圖。Fig. 3A is a field curvature and distortion diagram of the third embodiment of the present invention.
第3B圖為本創作第三實施例在不同像高處的橫向色差圖。Fig. 3B is a lateral chromatic aberration diagram of the third embodiment of the present invention at different image heights.
第4圖為本創作第四實施例的示意圖。Figure 4 is a schematic view of the fourth embodiment of the creation.
第4A圖為本創作第四實施例的場曲及畸變圖。Fig. 4A is a field curvature and distortion diagram of the fourth embodiment of the present invention.
第4B圖為本創作第四實施例在不同像高處的橫向色差圖。Fig. 4B is a lateral chromatic aberration diagram of the fourth embodiment of the present invention at different image heights.
第5圖為本創作第五實施例的示意圖。Fig. 5 is a schematic view showing a fifth embodiment of the creation.
第5A圖為本創作第五實施例的場曲及畸變圖。Fig. 5A is a field curvature and distortion diagram of the fifth embodiment of the present invention.
第5B圖為本創作第五實施例在不同像高處的橫向色差圖。Fig. 5B is a lateral chromatic aberration diagram of the fifth embodiment of the present invention at different image heights.
10‧‧‧第一鏡片 10‧‧‧ first lens
20‧‧‧第二鏡片 20‧‧‧second lens
30‧‧‧第三鏡片 30‧‧‧ third lens
40‧‧‧第四鏡片 40‧‧‧Fourth lens
50‧‧‧第五鏡片 50‧‧‧ fifth lens
60‧‧‧平板鏡片 60‧‧‧ flat lenses
A‧‧‧物側 A‧‧‧ object side
B‧‧‧像側 B‧‧‧ image side
ST‧‧‧光圈 ST‧‧‧ aperture
L‧‧‧光軸 L‧‧‧ optical axis
Claims (18)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105210047U TWM532034U (en) | 2016-07-04 | 2016-07-04 | Miniaturized five-piece imaging lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105210047U TWM532034U (en) | 2016-07-04 | 2016-07-04 | Miniaturized five-piece imaging lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TWM532034U true TWM532034U (en) | 2016-11-11 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW105210047U TWM532034U (en) | 2016-07-04 | 2016-07-04 | Miniaturized five-piece imaging lens |
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| Country | Link |
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| TW (1) | TWM532034U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI662293B (en) * | 2017-05-22 | 2019-06-11 | 新鉅科技股份有限公司 | Five-piece optical lens system with a wide field of view |
| TWI678572B (en) * | 2017-08-21 | 2019-12-01 | 鴻海精密工業股份有限公司 | Image pickup lens |
-
2016
- 2016-07-04 TW TW105210047U patent/TWM532034U/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI662293B (en) * | 2017-05-22 | 2019-06-11 | 新鉅科技股份有限公司 | Five-piece optical lens system with a wide field of view |
| TWI678572B (en) * | 2017-08-21 | 2019-12-01 | 鴻海精密工業股份有限公司 | Image pickup lens |
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