TWM440441U

TWM440441U - Imaging lens

Info

Publication number: TWM440441U
Application number: TW101207977U
Authority: TW
Inventors: Shih-Yuan Chang; Feng-Chao Chung
Original assignee: Glory Science Co Ltd
Priority date: 2012-04-27
Filing date: 2012-04-27
Publication date: 2012-11-01

Description

M440441 五、新型說明：【新型所屬之技術領域】本創作涉及光學鏡頭領域，特別涉及光學鏡頭的成像光學鏡片組。【先前技術】隨著電子技術的飛快發展，越來越多具有拍照功能的電子產品走進人們的生活中’用戶對電子產品追求小型化的同時，對其拍攝出物體的影像品質也提出了更高要求，即希望拍攝物M440441 V. New description: [New technical field] This creation involves the field of optical lenses, especially the imaging optical lens set of optical lenses. [Prior Art] With the rapid development of electronic technology, more and more electronic products with camera functions have entered people's lives. 'Users are pursuing miniaturization of electronic products, and also proposed image quality of their objects. Higher demand, that is, the desired subject

體的影像畫面清晰，而成像品質在很大程度上取決於電子產品内鏡頭模組的優劣。 H W絕大夕數鏡頭模組包括多個透鏡，光學影像信號經過透鏡聚紐到達影職測器，影減㈣將絲影像信號轉換為電子影像信號。然而，當光學影像信號透過透鏡時，透鏡及 ==參數如曲率半徑、折射率等會對光學影像信號 ^ 使光學影像信號的成像與原光學影像俨_相比產生像差、像散及畴變〜像U相的成傻要對目前鏡頭模組中的成像先學鏡片組加以改良。【新型内容】 b之目的在於提供__㈣像光學鏡η 種球面像差、場曲、你I 百效補慣各致象及崎變，從而提高成像品質。上述目的，本創作成像光學鏡片像光學鏡片組外之π九圈置於成學鏡片組外之靠俊^置於成像先第-鏡片，^側，從物面側至像面側依序設有：第鏡片該苐_鏡片有正屈光力，該第二鏡片有負屈#右& 两，第一鏡片 '铂先力，像面為凹面，第二鏡至少有一面為非破而.结一乃的像面和物面 -，第二鏡片，該第三鏡片有正屈光力，物 3 M440441 面凹面，像面為凸面，第三鏡片的物面和像面至少有一面為非球面，第四鏡片，該苐四鏡片有正屈光力，物面為凹面，像面為凸面，第四鏡片的物面和像面至少有一面為非球面·第五鏡片，該第五鏡片有負屈光力，物面側為凹面，像面側為凹面，物面和像面皆為非球面。此外，上述成像光學透鏡組並滿足以下關係式： 1.48<N1<1.57 1.60<N2<1.65 1.48<N3<1.57The image of the body is clear, and the quality of the image depends to a large extent on the quality of the lens module in the electronic product. The H W camera module includes a plurality of lenses, and the optical image signal passes through the lens to reach the shadow detector, and the shadow reduction (4) converts the silk image signal into an electronic image signal. However, when the optical image signal is transmitted through the lens, the lens and the == parameters such as the radius of curvature, the refractive index, etc., cause the optical image signal to be compared with the original optical image 俨_ to produce aberrations, astigmatism and domains. Change ~ like the U phase of the stupid to improve the imaging lens set in the current lens module. [New content] The purpose of b is to provide __(4) image optics η spherical aberration, field curvature, and your I-effects and image changes, thus improving image quality. For the above purpose, the imaginary nine-circle outside the optical lens group of the present invention is placed outside the group of the lens of the learning lens, placed on the first lens, the side of the image, and sequentially arranged from the object side to the image side. There are: the first lens of the lens _ lens has a positive refractive power, the second lens has a negative bending # right & two, the first lens 'platinum first force, the image surface is concave, the second mirror at least one side is non-destructive. The image surface and the object surface of the first lens, the second lens, the third lens has a positive refractive power, the object 3 M440441 has a concave surface, the image surface is convex, and the object surface and the image surface of the third lens are at least one aspheric surface, Four lenses, the four lenses have positive refractive power, the object surface is concave, the image surface is convex, and the object surface and the image surface of the fourth lens have at least one aspherical surface and a fifth lens, and the fifth lens has negative refractive power. The face side is a concave surface, the image side is a concave surface, and the object surface and the image surface are aspherical. Further, the above-described imaging optical lens group satisfies the following relationship: 1.48 < N1 < 1.57 1.60< N2 < 1.65 1.48 < N3 < 1.57

Vl>50 V2<3〇 V3>50 其中N1為本創作成像光學鏡片組的第一鏡片的折射率、 N2為第二鏡片的折射率、N3為第三鏡片的折射率、w為第 -鏡片的阿貝數、V2為第二鏡片的阿貝數、V3為第三鏡片的阿貝數。上述成像光學鏡片組進一步滿足以下關係式： 0.5<fl/f<0.9 1.3<f3/f<2.3 〇.4<f4/f<1.0 0.3<Rl/f<0.6 0.25<R4/f<0.5 -1.2<R6/f<-0.6 -0.1<R8/f<-0.4 其中，fi為第-鏡片的焦點距離、f為整個成像光學鏡片 =焦點距離、η為第三鏡片的焦點距離、f4為第四鏡片的 '.、、點距離、R1為第一鏡片之物面之S1的曲率半徑、為第二鏡片之像面之S4的曲率半徑、R6為第三鏡片之像面之％ 4 M440441 曲率半徑、R8為第四鏡片之像面之S8的曲率半徑。而且，較佳的，上述系統更進一步滿足以下關係式： TTL/Img 1.9 TTL/f< 1.3 其中，TTL為第-片鏡片物面上最高點至感光元件成像面的距離、Img Η為感光元件有效畫素對角線長。综上所述，本創作成像光學鏡片組藉由第—鏡片有正屈光力，物面為凸面；第二鏡片有負屈光力，像面為凹面，第二鏡片的像面和物面至少有一面為非球面；該第三鏡片有正屈光力，物面凹面，像面為凸面，第三鏡片的物面和像面至少有一面為非球面；第四鏡片有正屈光力，物面為凹面，像面為凸面，第四鏡片的物面和像面至少有一面為非球面；該第五鏡片有負屈光力’物面側為凹面’像面側為凹面，物面和像面皆為非球面，有效補償各種球面像差、場曲、像散及畸變，從而提高成像品質。【實施方式】為詳細說明本創作之技術内容、構造特徵、所達成目的及功效，以下茲舉例並配合圖式詳予說明。現請參閱第一圖，本創作成像光學鏡片組由五個鏡片組成’成像光學鏡片組每個鏡片朝向物向側1 0 0的表面為物面，朝向像面側200的表面為像面，光圈60置於成像光學鏡片組外之靠物面側1 〇〇之一側，紅外光濾光片7 0置於成像光學鏡片組外之靠像面側2 0 0之一側，本創作所示的成像光學鏡片組從物面側1 0 0至像面側2 0 0依序設有：一第一鏡片1 0 ’該第一鏡片1 0具有正屈光力，物面為凸面；一第二鏡片2 0，該第二鏡片20有負屈光力，像面為 5 M440441 凹面，第二鏡片的像面和物面至少有一面為非球面；一第三鏡片30 1¾第二鏡片3〇有正屈光力，物面為凹面’像面為凸面’第三鏡片30的物面和像面至少有—面為非球面；一第四鏡片4 0，該第四鏡片4〇有正屈光力，物面為凹面，像面為凸面’第四鏡片40的物面和像面至少有—面為非球面；一第五鏡片5 0 ’該第五鏡片5〇有負屈光力，物面為凹面，像面為凹面’物面和像面皆為非球面。此外，上述成像光學透鏡組並滿足以下關係式： 1·48<Ν1<1.57 1.60<Ν2<1.65 1.48<Ν3<1.57Vl > 50 V2 < 3 〇 V3 > 50 wherein N1 is the refractive index of the first lens of the inventive imaging optical lens group, N2 is the refractive index of the second lens, N3 is the refractive index of the third lens, and w is the first lens The Abbe number, V2 is the Abbe number of the second lens, and V3 is the Abbe number of the third lens. The above-described imaging optical lens group further satisfies the following relationship: 0.5 <fl/f<0.9 1.3<f3/f<2.3 〇.4<f4/f<1.0 0.3<Rl/f<0.6 0.25<R4/f&lt ;0.5 -1.2<R6/f<-0.6 -0.1<R8/f<-0.4 where fi is the focal length of the first lens, f is the entire imaging optical lens = focus distance, and η is the focus of the third lens The distance, f4 is the '., the point distance of the fourth lens, R1 is the radius of curvature of S1 of the object surface of the first lens, the radius of curvature of S4 which is the image plane of the second lens, and R6 is the image plane of the third lens. % 4 M440441 The radius of curvature, R8 is the radius of curvature of S8 of the image plane of the fourth lens. Moreover, preferably, the above system further satisfies the following relationship: TTL/Img 1.9 TTL/f< 1.3 wherein TTL is the distance from the highest point on the object surface of the first lens to the imaging surface of the photosensitive element, and Img is the photosensitive element The effective pixels are diagonally long. In summary, the present imaging optical lens group has a positive refractive power by the first lens, the object surface is convex; the second lens has a negative refractive power, the image surface is concave, and the image surface and the object surface of the second lens have at least one side. The third lens has positive refractive power, the concave surface of the object surface, the image surface is convex, the object surface and the image surface of the third lens have at least one side aspherical surface; the fourth lens has positive refractive power, and the object surface is concave surface, image surface The convex surface, the object surface and the image surface of the fourth lens are at least one aspherical surface; the fifth lens has a negative refractive power, the object surface side is a concave surface, and the image surface side is a concave surface, and the object surface and the image surface are aspherical surfaces, which are effective. Compensates for various spherical aberrations, field curvature, astigmatism, and distortion to improve image quality. [Embodiment] In order to explain in detail the technical contents, structural features, achieved goals and effects of the present invention, the following is a detailed description with reference to the drawings. Referring to the first figure, the present imaging optical lens group is composed of five lenses. 'Imaging optical lens group. The surface of each lens facing the object side 100 is the object surface, and the surface facing the image side 200 is the image surface. The aperture 60 is placed on one side of the object side 1 外 outside the imaging optical lens group, and the infrared light filter 70 is placed on one side of the image side 200 0 outside the imaging optical lens group. The imaging optical lens set is sequentially provided from the object side 1 0 0 to the image side 2 0 0: a first lens 10 0 'the first lens 10 has positive refractive power, the object surface is convex; a second The lens 20 has a negative refractive power, the image surface is 5 M440441 concave surface, the image surface and the object surface of the second lens have at least one side aspherical; and the third lens 30 13⁄2 the second lens 3 has positive refractive power The object surface is a concave surface, the image surface is convex, and the object surface and the image surface of the third lens 30 are at least aspherical; a fourth lens 40 has a positive refractive power and the object surface is concave. The image surface and the image surface of the fourth lens 40 having at least a convex surface are at least - aspherical; a fifth lens 5 0 The fifth lens 5 has a negative refractive power, the object surface is concave, and the image surface is concave. The object surface and the image surface are aspherical. Further, the above-described imaging optical lens group satisfies the following relationship: 1·48 < Ν 1 < 1.57 1.60< Ν 2 < 1.65 1.48 < Ν 3 < 1.57

Vl>50 V2<30 V3>50 其中N1為本創作成像光學鏡片組的第一鏡片^ 〇的折射率、N2為第二鏡片2〇的折射率、N3為第三鏡片3 〇的折射率、vi為第一鏡片10的阿貝數、V2為第二鏡片2 〇的阿貝數、V3為第三鏡片3 〇的阿貝數。為了讓各個透鏡之間的焦距平衡最佳化，而提高系統性月匕，上述成像光學鏡片組進一步滿足以下關係式：〇.5<fl/f<〇.9 1.3<f3/f<2.3 〇.4<f4/f<1.0 〇.3<Rl/f<0.6 〇.25<R4/f<0.5 -1.2<R6/f<-0.6 -0.1<R8/f<-0.4 、f為整個成像光學其中，fl為第一鏡片1 〇的焦點距離 6 M440441 兄片組的焦點距離、f3為第三鏡片3 〇的焦點距離' :鏡月4 0的焦點距離、R1為第一鏡片1〇之物面之幻的曲 HR4為第二鏡片2 0之像面之S4的曲率半徑、R6為第二鏡片3 0之像面之S6曲率半徑、R8為第四鏡片4 〇之面之S8的曲率半徑。通過控制 fl/f、f3/f、f4/f、R1/f、嫌、R6/f、崎的比值，很好地完成像差的補正及色散的補償。而且，較佳的，上述系統更進一步滿足以下關係式 TTL/Img HS 1.9 Φ TTL/f< 1.3 其中’nx為第-片鏡片i 〇物面上最高點至感光元件成像面的距離、Img Η為感光元件有效畫素對角線長。當TTL/f 以及TTL/Img Η的比值高出上限值時，則整個成像光學鏡片組不易達成小型化的目標。藉由以上的配置使本創作的成像光學鏡片組的球面像差、場曲、像散以及畸變量都被控制於優良的範圍之内。Vl>50 V2<30 V3>50 wherein N1 is the refractive index of the first lens of the imaging optical lens group, N2 is the refractive index of the second lens 2〇, and N3 is the refractive index of the third lens 3〇, Vi is the Abbe number of the first lens 10, V2 is the Abbe number of the second lens 2 、, and V3 is the Abbe number of the third lens 3 。. In order to optimize the focal length balance between the lenses and improve the systematic meniscus, the above-mentioned imaging optical lens group further satisfies the following relationship: 〇.5<fl/f<〇.9 1.3<f3/f<2.3 〇.4<f4/f<1.0 〇.3<Rl/f<0.6 〇.25<R4/f<0.5 -1.2<R6/f<-0.6 -0.1<R8/f<-0.4, f is The whole imaging optics, where fl is the focal length of the first lens 1 〇 6 M440441 The focal distance of the brother group, f3 is the focal distance of the third lens 3 ' ': the focal length of the mirror month 40, R1 is the first lens 1 The magical HR4 of the object surface is the radius of curvature of S4 of the image plane of the second lens 20, R6 is the S6 radius of curvature of the image plane of the second lens 30, and R8 is the S8 of the surface of the fourth lens 4 The radius of curvature. By controlling the ratios of fl/f, f3/f, f4/f, R1/f, suspicion, R6/f, and sag, the aberration correction and dispersion compensation are well performed. Moreover, preferably, the above system further satisfies the following relationship TTL/Img HS 1.9 Φ TTL/f< 1.3 where 'nx is the distance from the highest point of the first lens to the imaging surface of the photosensitive element, Img Η The effective pixel diagonal for the photosensitive element is long. When the ratio of TTL/f and TTL/Img 高 is higher than the upper limit, the entire imaging optical lens group is not easy to achieve the goal of miniaturization. With the above configuration, the spherical aberration, curvature of field, astigmatism, and distortion of the imaging optical lens group of the present invention are controlled within an excellent range.

現請參閱第二圖和第三圖，本創作成像光學鏡片組之第— • 較佳實施例中，有效焦距值為4·1393，光圈值為2 65，TTL 為5.1，空氣間隔3、])、（；、0、6、£為〇.〇89、0.3627、〇.6914、 0.3714、0.28、0.8 ’其中各鏡片的折射率、阿貝數、焦距及曲率半徑的參數如下：折射率阿貝數焦距第一鏡片 1.54 56 3.004 第二鏡片 1.64 23 -4.147 第三鏡片 1.535 56 8.133 第四鏡片 1.535 56 2.807 第五鏡片 1.511 55.2 -2.329 7 M440441 表面序號曲率半徑 S1 1.9945E+00 S2 -7.9663E+00 S3 3.5672E+00 S4 1.4753E+00 S5 -1.8598E+01 S6 -3.5659E+00 S7 -1.6536E+00 S8 -8.7017E-01 S9 -2.4180E+01 S10 1.2577E+00 其中 fl/f、f3/f、f4/f、Rl/f、R4/f、R6/f、R8/f、TTL/Img H、TTL/f的比值如下： fl/f= 0.7256 f4/f= 0.6781 R4/f= 0.3564 R8/f<=-0.2047 TTL/f= 1.2321 f3/f= 1.9648 Rl/f= 0.4818 R6/f< = -0.8615 TTL/Img H= 1.7757 且第一鏡片1 0、第二鏡片20、第三鏡片30、第四鏡片40及第五鏡片50中的非球面是以下方程式所構成： Z = —. ______- + Ah4 + Bh6 +Chs + Dhw + Eh12 + Fh'4 + Gh16 + Hhls + Jh20 l +」l-(K + l)c2h2 其中，C是鏡片曲率，h是鏡片面上與光軸的垂直距離， k 為圓錐係數(conic constant)，A、B'C、D、E、F、G、H、 J為非球面係數。圓錐係數與各階非球面係數的值如下：Referring now to the second and third figures, in the preferred embodiment of the present invention, the effective focal length value is 4.1393, the aperture value is 2 65, the TTL is 5.1, and the air gap is 3,] ), (;, 0, 6, and £ are 〇.〇89, 0.3627, 〇.6914, 0.3714, 0.28, 0.8'. The parameters of the refractive index, Abbe number, focal length, and radius of curvature of each lens are as follows: Bay number focal length first lens 1.54 56 3.004 second lens 1.64 23 -4.147 third lens 1.535 56 8.133 fourth lens 1.535 56 2.807 fifth lens 1.511 55.2 -2.329 7 M440441 surface number radius of curvature S1 1.9945E+00 S2 -7.9663E +00 S3 3.5672E+00 S4 1.4753E+00 S5 -1.8598E+01 S6 -3.5659E+00 S7 -1.6536E+00 S8 -8.7017E-01 S9 -2.4180E+01 S10 1.2577E+00 where fl/ The ratios of f, f3/f, f4/f, Rl/f, R4/f, R6/f, R8/f, TTL/Img H, and TTL/f are as follows: fl/f= 0.7256 f4/f= 0.6781 R4/ f = 0.3564 R8/f<=-0.2047 TTL/f= 1.2321 f3/f= 1.9648 Rl/f= 0.4818 R6/f<= -0.8615 TTL/Img H= 1.7757 and the first lens 10, the second lens 20, Third lens 30, fourth mirror The aspheric surfaces in the sheet 40 and the fifth lens 50 are constituted by the following formula: Z = —. ______- + Ah4 + Bh6 + Chs + Dhw + Eh12 + Fh'4 + Gh16 + Hhls + Jh20 l +" l-(K + l)c2h2 where C is the curvature of the lens, h is the vertical distance from the lens surface to the optical axis, k is the conic constant, and A, B'C, D, E, F, G, H, J are The aspheric coefficient. The values of the conic coefficient and the aspheric coefficients of each order are as follows:

Surface K A B C D A⑴ -3.0074Ε+00 5.2187E-02 3.3667E-03 -3.7877E-02 7.9504E-02 A⑵ -1.6352Ε+01 4.7712E-02 7.9372E-03 -6.5524E-02 2.7338E-02 A⑶ -3.7257Ε+01 -1.4479E-02 4.8472E-02 -5.7504E-02 1.0000E-02 A⑷ -6.1978Ε+00 2.2213E-02 1.3715E-02 -1.3632E-03 3.0663E-02 A(5) -2.0309Ε+00 -7.1243E-02 3.5062E-02 -7.9800E-02 5.1615E-02 A⑹ -5.7007Ε+00 -6.8705E-02 4.5330E-02 -5.3760E-02 -2.6902E-03 8 M440441 A⑺ -5.7913E-01 -8.0216E-02 1.0423E-01 -2.2106E-02 -2.1916E-02 A⑻ -2.7232E+00 -1.2779E-01 8.0314E-02 -1.0833E-02 -3.0238E-03 A⑼ -6.8098E+00 -7.8707E-03 -1.8140E-02 1.3994E-03 2.7240E-03 A(10) -7.6019E+00 -5.3565E-02 1.1572E-02 -3.5205E-03 4.8725E-04Surface KABCD A(1) -3.0074Ε+00 5.2187E-02 3.3667E-03 -3.7877E-02 7.9504E-02 A(2) -1.6352Ε+01 4.7712E-02 7.9372E-03 -6.5524E-02 2.7338E-02 A(3) - 3.7257Ε+01 -1.4479E-02 4.8472E-02 -5.7504E-02 1.0000E-02 A(4) -6.1978Ε+00 2.2213E-02 1.3715E-02 -1.3632E-03 3.0663E-02 A(5) - 2.0309Ε+00 -7.1243E-02 3.5062E-02 -7.9800E-02 5.1615E-02 A(6) -5.7007Ε+00 -6.8705E-02 4.5330E-02 -5.3760E-02 -2.6902E-03 8 M440441 A(7) -5.7913E-01 -8.0216E-02 1.0423E-01 -2.2106E-02 -2.1916E-02 A(8) -2.7232E+00 -1.2779E-01 8.0314E-02 -1.0833E-02 -3.0238E-03 A(9) -6.8098E+00 -7.8707E-03 -1.8140E-02 1.3994E-03 2.7240E-03 A(10) -7.6019E+00 -5.3565E-02 1.1572E-02 -3.5205E-03 4.8725E-04

Surface E F G H J A⑴ -7.8378E-02 3.6399E-02 0.0000E+00 O.OOOOE+OO 0.0000E+00 A⑵ 1.0942E-01 -9.4022E-02 0.0000E+00 0.0000E+00 0.0000E+00 A⑶ 9.7047E-02 -8.8115E-02 0.0000E+00 O.OOOOE+OO 0.0000E+00 A⑷ 2.4186E-03 -2.3609E-02 0.0000E+00 O.OOOOE+OO 0.0000E+00 A(5) 8.9293E-02 -6.3615E-02 0.0000E+00 0.0000E+00 0.0000E+00 A⑹ 4.1804E-02 -1.8468E-02 0.0000E+00 0.0000E+00 0.0000E+00 A(7) 5.4828E-03 6.9906E-03 -2.9258E-03 O.OOOOE+OO 0.0000E+00 A⑻ 4.7498E-04 2.6545E-04 4.1147E-06 O.OOOOE+OO 0.0000E+00 A⑼ -5.0070E-04 -3.1139E-04 1.2090E-04 -1.1667E-05 0.0000E+00 A(10) 5.6766E-05 -3.6452E-05 5.3307E-06 -2.6536E-07 0.0000E+00Surface EFGHJ A(1) -7.8378E-02 3.6399E-02 0.0000E+00 O.OOOOE+OO 0.0000E+00 A(2) 1.0942E-01 -9.4022E-02 0.0000E+00 0.0000E+00 0.0000E+00 A(3) 9.7047E -02 -8.8115E-02 0.0000E+00 O.OOOOE+OO 0.0000E+00 A(4) 2.4186E-03 -2.3609E-02 0.0000E+00 O.OOOOE+OO 0.0000E+00 A(5) 8.9293E- 02 -6.3615E-02 0.0000E+00 0.0000E+00 0.0000E+00 A(6) 4.1804E-02 -1.8468E-02 0.0000E+00 0.0000E+00 0.0000E+00 A(7) 5.4828E-03 6.9906E -03 -2.9258E-03 O.OOOOE+OO 0.0000E+00 A(8) 4.7498E-04 2.6545E-04 4.1147E-06 O.OOOOE+OO 0.0000E+00 A(9) -5.0070E-04 -3.1139E-04 1.2090 E-04 -1.1667E-05 0.0000E+00 A(10) 5.6766E-05 -3.6452E-05 5.3307E-06 -2.6536E-07 0.0000E+00

可以理解地，第三圖的球面像差圖，表示在像場(Field)為 1内，本創作成像光學鏡片組通過D線（；l=587nm)、F線（λ =486nm)及C線（λ=656ηπι)的球面像差小於0.05。場曲、像散及畸變圖中，表示MF在2.87内，本創作成像光學像片組通過D線時，場曲小於0.05、像散小於0.01，畸變小於2%，其中，MF ( Maximum Field)表示成像光學鏡片組的最大像場， S線為徑向場曲曲線，T線為切向場曲曲線。圖中清晰表明在本創作成像光學鏡片組的結構的情況下，球面像差小於〇.〇5，場曲小於0.05，像散小於0.01，畸變小於2%，因此各種像差、場曲、像散及畸變仍得到有效的校正並獲得較高品質的圖像，由此可知本創作具有良好的成像品質。現請參閱第四圖和第五圖，本創作成像光學鏡片組之第二較佳實施例中，有效焦距值為4.1798，光圈值為2.65，TTL 為 5.2，空氣間隔 a、b、c、d、e、f 為 0.1071、0.378、0.678、 0.2401、0.2905、0.8，其中各鏡片的折射率、阿貝數、焦距及 9 M440441 曲率半徑的參數如下：折射率阿貝數焦距第一鏡片 1.54 551 2.96 yflcfr —* AVr (r. 第_鏡片 1.64 23 -4.098 第三鏡片 1.545 56 9.196 第四鏡片 1.545 56 2.761 第五鏡片 1.51 56 -2.405 表面序號曲率半徑 S1 1.8628E+00 S2 -1.0302E+01 S3 4.0476E+00 S4 1.5486E+00 S5 -1.5601E+01 S6 -3.8401E+00 S7 -1.6861E+00 S8 -8.8462E-01 S9 -3.0000E+01 S10 1.2865E+00 其中 fl/f、f3/f、f4/f、Rl/f、R4/f、R6/f、R8/f、TTL/Img H、TTL/f的比值如下： fl/f= 0.7082 f3/f= 2.2001 f4/f= 0.6606 Rl/f=0.4457 R4/f二 0.3705 R6/f=-0.8303 R8/f=-0.2129 TTL/Img H= 1.8106 TTL/f= 1.2441 且第一鏡片1 0與第二鏡片3 0中的非球面是以下方程式所構成： Z =——____ +AhA+Bh6 +Chs +Dh'° +Ehn +Fh'4 +Gh16 +HhiS +Jh20 l + yjl-(K + \)c2h2 其中，c是鏡片曲率，h是鏡片面上與光軸的垂直距離， k 為圓錐係數(conic constant)，A、B、C、D、E、F、G、H、 ίο M440441 J為非球面係數。圓錐係數與各階非球面係數的值如下表：It can be understood that the spherical aberration diagram of the third figure indicates that in the field of field 1, the present imaging optical lens group passes through the D line (; l = 587 nm), the F line (λ = 486 nm), and the C line. The spherical aberration of (λ = 656 ηπι) is less than 0.05. In the field curvature, astigmatism and distortion map, it means that the MF is within 2.87. When the imaging optical group passes through the D line, the field curvature is less than 0.05, the astigmatism is less than 0.01, and the distortion is less than 2%. Among them, MF (Maximum Field) It represents the maximum image field of the imaging optical lens group, the S line is the radial field curvature curve, and the T line is the tangential field curvature curve. The figure clearly shows that in the case of the structure of the present imaging optical lens group, the spherical aberration is less than 〇.〇5, the curvature of field is less than 0.05, the astigmatism is less than 0.01, and the distortion is less than 2%, so various aberrations, field curvatures, images The dispersion and distortion are still effectively corrected and a higher quality image is obtained, which shows that the creation has good image quality. Referring now to the fourth and fifth figures, in the second preferred embodiment of the present imaging optical lens set, the effective focal length value is 4.1798, the aperture value is 2.65, the TTL is 5.2, and the air interval a, b, c, d , e, f are 0.1071, 0.378, 0.678, 0.2401, 0.2905, 0.8, wherein the refractive index, Abbe number, focal length and 9 M440441 radius of curvature of each lens are as follows: refractive index Abbe number focal length first lens 1.54 551 2.96 Yflcfr —* AVr (r. _ lens 1.64 23 -4.098 third lens 1.545 56 9.196 fourth lens 1.545 56 2.761 fifth lens 1.51 56 -2.405 surface number radius of curvature S1 1.8628E+00 S2 -1.0302E+01 S3 4.0476 E+00 S4 1.5486E+00 S5 -1.5601E+01 S6 -3.8401E+00 S7 -1.6861E+00 S8 -8.8462E-01 S9 -3.0000E+01 S10 1.2865E+00 where fl/f, f3/ The ratios of f, f4/f, Rl/f, R4/f, R6/f, R8/f, TTL/Img H, and TTL/f are as follows: fl/f= 0.7082 f3/f= 2.2001 f4/f= 0.6606 Rl /f=0.4457 R4/f20.3705 R6/f=-0.8303 R8/f=-0.2129 TTL/Img H= 1.8106 TTL/f= 1.2441 and the aspherical surface of the first lens 10 and the second lens 30 is below Equation Composition: Z =——____ +AhA+Bh6 +Chs +Dh'° +Ehn +Fh'4 +Gh16 +HhiS +Jh20 l + yjl-(K + \)c2h2 where c is the curvature of the lens and h is the lens surface The vertical distance from the optical axis, k is the conic constant, A, B, C, D, E, F, G, H, ί M440441 J is the aspheric coefficient. The conic coefficient and the value of each aspheric coefficient The following table:

Surface K A B C D A⑴ -2.5891E+00 5.7413E-02 8.4330E-03 -3.6564E-02 7.9209E-02 A⑵ -2.1839E+00 4.5842E-02 8.7904E-03 -6.4399E-02 2.4742E-02 A⑶ -4.0000E+01 -2.025 IE-02 4.5370E-02 -6.0481E-02 6.7569E-03 A⑷ -5.9514E+00 2.6932E-02 1.4526E-02 -4.6688E-03 2.6972E-02 A(5) 4.0000E+01 -7.6024E-02 3.6427E-02 -8.6839E-02 4.3205E-02 A⑹ -5.7500E+00 -7.0096E-02 4.401 IE-02 -5.3130E-02 -2.6950E-03 A(7) -6.8907E-01 -7.5723E-02 1.0542E-01 -2.2136E-02 -2.1955E-02 A⑻ -2.7847E+00 -1.2289E-01 8.0861E-02 -1.0949E-02 -3.1204E-03 A⑼ -4.0000E+01 2.3328E-03 -1.7663E-02 1.2443E-03 2.6843E-03 A(10) -7.8772E+00 -4.6575E-02 1.0982E-02 -3.4427E-03 4.8870E-04Surface KABCD A(1) -2.5891E+00 5.7413E-02 8.4330E-03 -3.6564E-02 7.9209E-02 A(2) -2.1839E+00 4.5842E-02 8.7904E-03 -6.4399E-02 2.4742E-02 A(3) - 4.0000E+01 -2.025 IE-02 4.5370E-02 -6.0481E-02 6.7569E-03 A(4) -5.9514E+00 2.6932E-02 1.4526E-02 -4.6688E-03 2.6972E-02 A(5) 4.0000 E+01 -7.6024E-02 3.6427E-02 -8.6839E-02 4.3205E-02 A(6) -5.7500E+00 -7.0096E-02 4.401 IE-02 -5.3130E-02 -2.6950E-03 A(7) -6.8907E-01 -7.5723E-02 1.0542E-01 -2.2136E-02 -2.1955E-02 A(8) -2.7847E+00 -1.2289E-01 8.0861E-02 -1.0949E-02 -3.1204E-03 A(9) -4.0000E+01 2.3328E-03 -1.7663E-02 1.2443E-03 2.6843E-03 A(10) -7.8772E+00 -4.6575E-02 1.0982E-02 -3.4427E-03 4.8870E-04

Surface E F G H J A⑴ -7.9147E-02 3.4223E-02 0.0000E+00 0.0000E+00 0.0000E+00 A⑵ 1.0415E-01 -9.3260E-02 0.0000E+00 0.0000E+00 0.0000E+00 A(3) 9.6157E-02 -8.5034E-02 0.0000E+00 0.0000E+00 O.OOOOE+OO A⑷ 1.6815E-03 -1.7525E-02 0.0000E+00 0.0000E+00 O.OOOOE+OO A⑶ 8.6150E-02 -5.8508E-02 0.0000E+00 O.OOOOE+OO O.OOOOE+OO A⑹ 4.1639E-02 -1.8553E-02 0.0000E+00 0.0000E+00 0.0000E+00 A⑺ 5.4973E-03 6.9858E-03 -2.963 IE-03 0.0000E+00 0.0000E+00 A⑻ 4.1005E-04 2.2572E-04 -1.6938E-05 0.0000E+00 0.0000E+00 A⑼ -5.0616E-04 -3.1175E-04 1.2098E-04 -1.1619E-05 0.0000E+00 A(10) 5.5298E-05 -3.6643E-05 5.3382E-06 -2.5641E-07 O.OOOOE+OOSurface EFGHJ A(1) -7.9147E-02 3.4223E-02 0.0000E+00 0.0000E+00 0.0000E+00 A(2) 1.0415E-01 -9.3260E-02 0.0000E+00 0.0000E+00 0.0000E+00 A(3) 9.6157E-02 -8.5034E-02 0.0000E+00 0.0000E+00 O.OOOOE+OO A(4) 1.6815E-03 -1.7525E-02 0.0000E+00 0.0000E+00 O.OOOOE+OO A(3) 8.6150E-02 -5.8508E-02 0.0000E+00 O.OOOOE+OO O.OOOOE+OO A(6) 4.1639E-02 -1.8553E-02 0.0000E+00 0.0000E+00 0.0000E+00 A(7) 5.4973E-03 6.9858E-03 -2.963 IE-03 0.0000E+00 0.0000E+00 A(8) 4.1005E-04 2.2572E-04 -1.6938E-05 0.0000E+00 0.0000E+00 A(9) -5.0616E-04 -3.1175E-04 1.2098E-04 -1.1619E-05 0.0000E+00 A(10) 5.5298E-05 -3.6643E-05 5.3382E-06 -2.5641E-07 O.OOOOE+OO

可以理解地，第五圖的球面像差圖，表示在像場(Field)為 1内，本創作成像光學鏡片組通過D線（A=587nm)、F線（λ =486nm)及C線（λ =656nm)的球面像差小於0.05。場曲、像散及畸變圖中，表示MF在2.87内，本創作成像光學像片組通過D線時，場曲小於0.05、像散小於0.01，畸變小於2%，其中，MF ( Maximum Field )表示本創作成像光學鏡片組的最大像場，S線為徑向場曲曲線，T線為切向場曲曲線。圖中清晰表明在本創作成像光學鏡片組的結構的情況下，球面像差小於 0.05，場曲小於0.05，像散小於0.01，畸變小於2%，因此各 11 M440441 種像差、場曲、像散及畸變仍得到有效的校正並獲得較高品質的圖像，由此可知本創作具有良好的成像品質。現請參閱第六圖和第七圖，本創作成像光學鏡片組之第三較佳實施例中，有效焦距值為4.2567，光圈值為2.65，TTL 為 5.3，空氣間隔 a、b、c、d、e、f 為 0.1111、0.426、0.6931、 0.0706、0.2891、0.8，其中各鏡片的折射率、阿貝數、焦距及曲率半徑參數如下表：折射率阿貝數焦距第一鏡片 1.54 55 2.902 第二鏡片 1.636 23.2 -4.112 第三鏡片 1.545 56 9.365 第四鏡片 1.545 56 2.631 第五鏡片 1.536 54.9 -2.288 表面序號曲率半徑 S1 1.7499E+00 S2 -1.3674E+01 S3 4.5707E+00 S4 1.6251E+00 S5 -8.7884E+00 S6 -3.2896E+00 S7 -1.6801E+00 S8 -8.7160E-01 S9 -3.0000E+01 S10 1.2895E+00 其中 fl/f、f3/f、f4/f、Rl/f、R4/f、R6/f、R8/f、TTL/Img H、TTL/f的比值如下： fl/f= 0.6817 f4/f= 0.6181 R4/f=0.3818 R8/f=-0.2048 TTL/f = 1.2451 f3/f= 2.2001 Rl/f=0.4111 R6/f< =-0.7728 TTL/Img H= 1.8454 12 M440441 且第一鏡片1 0與第二鏡片3 0中的非球面是以下方程式所構成： rh2 Z =——1=JL== + AhA+Bh6 +Ch% +DhX0 +Ehn +Fh]4 +Gh'6 +Hhn +Jh^ \ + ^\-{K + \)clh2 其中，C是鏡片曲率，h是鏡片面上與光軸的垂直距離， k 為圓錐係數（conic constant)，A、B、C、D、E、F、G、H、 J為非球面係數。圓錐係數與各階非球面係數的值如下表：It can be understood that the spherical aberration diagram of the fifth figure indicates that in the field of field 1, the present imaging optical lens group passes through the D line (A=587 nm), the F line (λ=486 nm), and the C line ( The spherical aberration of λ = 656 nm) is less than 0.05. In the field curvature, astigmatism and distortion map, it indicates that the MF is within 2.87. When the imaging optical group passes through the D line, the field curvature is less than 0.05, the astigmatism is less than 0.01, and the distortion is less than 2%. Among them, MF (Maximum Field) It represents the maximum image field of the imaging optical lens set of the present invention, the S line is a radial field curvature curve, and the T line is a tangential field curvature curve. The figure clearly shows that in the case of the structure of the present imaging optical lens group, the spherical aberration is less than 0.05, the field curvature is less than 0.05, the astigmatism is less than 0.01, and the distortion is less than 2%, so each 11 M440441 kinds of aberrations, field curvature, image The dispersion and distortion are still effectively corrected and a higher quality image is obtained, which shows that the creation has good image quality. Referring now to the sixth and seventh figures, in the third preferred embodiment of the present imaging optical lens set, the effective focal length value is 4.2567, the aperture value is 2.65, the TTL is 5.3, and the air interval a, b, c, d , e, f are 0.1111, 0.426, 0.6931, 0.0706, 0.2891, 0.8, wherein the refractive index, Abbe number, focal length and radius of curvature parameters of each lens are as follows: refractive index Abbe number focal length first lens 1.54 55 2.902 second Lens 1.636 23.2 -4.112 Third lens 1.545 56 9.365 Fourth lens 1.545 56 2.631 Fifth lens 1.536 54.9 -2.288 Surface number Curvature radius S1 1.7499E+00 S2 -1.3674E+01 S3 4.5707E+00 S4 1.6251E+00 S5 -8.7884E+00 S6 -3.2896E+00 S7 -1.6801E+00 S8 -8.7160E-01 S9 -3.0000E+01 S10 1.2895E+00 where fl/f, f3/f, f4/f, Rl/f The ratio of R4/f, R6/f, R8/f, TTL/Img H, and TTL/f is as follows: fl/f= 0.6817 f4/f= 0.6181 R4/f=0.3818 R8/f=-0.2048 TTL/f = 1.2451 f3/f= 2.2001 Rl/f=0.4111 R6/f<=-0.7728 TTL/Img H= 1.8454 12 M440441 and the aspheric surface of the first lens 10 and the second lens 30 is composed of the following program Rh2 Z =——1=JL== + AhA+Bh6 +Ch% +DhX0 +Ehn +Fh]4 +Gh'6 +Hhn +Jh^ \ + ^\-{K + \)clh2 where C is the lens Curvature, h is the vertical distance from the lens surface to the optical axis, k is the conic constant, and A, B, C, D, E, F, G, H, and J are aspherical coefficients. The values of the conic coefficient and the aspheric coefficients of each order are as follows:

Surface K A Β C D A⑴ -2.3430Ε+00 6.1599Ε-02 1.2275Ε-02 -4.0052Ε-02 8.2025E-02 M2) 4.0000Ε+01 3.7506Ε-02 1.3367Ε-02 -5.9552Ε-02 1.1818E-02 A(3) -4.0000Ε+01 -2.4982Ε-02 4.8739Ε-02 -6.3526Ε-02 -8.7783E-03 A⑷ -5.6338Ε+00 3.9360Ε-02 2.0019Ε-02 -1.0642Ε-02 1.8879E-02 A⑶ 3.9982Ε+01 -8.1077Ε-02 3.7750Ε-02 -9.1042Ε-02 2.9136E-02 A⑹ -1.8570Ε+00 -7.8890Ε-02 4.0567Ε-02 -5.3302Ε-02 -5.3779E-03 A⑺ -6.2306Ε-01 -8.0368Ε-02 1.0943Ε-01 -2.1830Ε-02 -2.2452E-02 A⑻ -2.9262Ε+00 -1.2052Ε-01 7.9985Ε-02 -1.1265Ε-02 -3.0818E-03 A⑼ 4.0000Ε+01 6.7875Ε-03 -1.6844Ε-02 1.1588Ε-03 2.6667E-03 A(10) -8.6999Ε+00 -4.3500Ε-02 1.0869Ε-02 -3.4373Ε-03 5.0299E-04Surface KA Β CD A(1) -2.3430Ε+00 6.1599Ε-02 1.2275Ε-02 -4.0052Ε-02 8.2025E-02 M2) 4.0000Ε+01 3.7506Ε-02 1.3367Ε-02 -5.9552Ε-02 1.1818E-02 A(3) -4.0000Ε+01 -2.4982Ε-02 4.8739Ε-02 -6.3526Ε-02 -8.7783E-03 A(4) -5.6338Ε+00 3.9360Ε-02 2.0019Ε-02 -1.0642Ε-02 1.8879E- 02 A(3) 3.9982Ε+01 -8.1077Ε-02 3.7750Ε-02 -9.1042Ε-02 2.9136E-02 A(6) -1.8570Ε+00 -7.8890Ε-02 4.0567Ε-02 -5.3302Ε-02 -5.3779E-03 A(7) -6.2306Ε-01 -8.0368Ε-02 1.0943Ε-01 -2.1830Ε-02 -2.2452E-02 A(8) -2.9262Ε+00 -1.2052Ε-01 7.9985Ε-02 -1.1265Ε-02 -3.0818E-03 A(9) 4.0000Ε+01 6.7875Ε-03 -1.6844Ε-02 1.1588Ε-03 2.6667E-03 A(10) -8.6999Ε+00 -4.3500Ε-02 1.0869Ε-02 -3.4373Ε-03 5.0299E-04

Surface E F G H J A⑴ -7.1674E-02 1.9019E-02 0.0000E+00 0.0000E+00 O.OOOOE+OO A⑵ 8.4533E-02 -8.1669E-02 0.0000E+00 0.0000E+00 0.0000E+00 A⑶ 8.3204E-02 -6.6789E-02 0.0000E+00 0.0000E+00 0.0000E+00 A⑷ -3.2629E-03 -4.3939E-03 0.0000E+00 0.0000E+00 0.0000E+00 A(5) 7.2897E-02 -5.0146E-02 0.0000E+00 0.0000E+00 0.0000E+00 A⑹ 4.0006E-02 -1.8624E-02 0.0000E+00 0.0000E+00 O.OOOOE+OO A⑺ 5.2906E-03 6.9207E-03 -2.9834E-03 0.0000E+00 O.OOOOE+OO A⑻ 4.0915E-04 1.9912E-04 -3.6547E-05 O.OOOOE+OO 0.0000E+00 A⑼ -5.0491E-04 -3.1120E-04 1.2092E-04 -1.1691E-05 0.0000E+00 A(10) 5.5888E-05 -3.6823E-05 5.3188E-06 -2.5253E-07 0.0000E+00Surface EFGHJ A(1) -7.1674E-02 1.9019E-02 0.0000E+00 0.0000E+00 O.OOOOE+OO A(2) 8.4533E-02 -8.1669E-02 0.0000E+00 0.0000E+00 0.0000E+00 A(3) 8.3204E -02 -6.6789E-02 0.0000E+00 0.0000E+00 0.0000E+00 A(4) -3.2629E-03 -4.3939E-03 0.0000E+00 0.0000E+00 0.0000E+00 A(5) 7.2897E-02 -5.0146E-02 0.0000E+00 0.0000E+00 0.0000E+00 A(6) 4.0006E-02 -1.8624E-02 0.0000E+00 0.0000E+00 O.OOOOE+OO A(7) 5.2906E-03 6.9207E-03 - 2.9834E-03 0.0000E+00 O.OOOOE+OO A(8) 4.0915E-04 1.9912E-04 -3.6547E-05 O.OOOOE+OO 0.0000E+00 A(9) -5.0491E-04 -3.1120E-04 1.2092E- 04 -1.1691E-05 0.0000E+00 A(10) 5.5888E-05 -3.6823E-05 5.3188E-06 -2.5253E-07 0.0000E+00

可以理解地，第七圖的球面像差圖中，表示在像場(Field)It can be understood that in the spherical aberration diagram of the seventh figure, it is represented in the field (Field).

為1内，本創作成像光學鏡片組通過D線（A=587nm)、F線（λ =486nm)及C線（λ =656nm)的球面像差小於0.05。場曲、像散及變圖中，表示MF在2.87内，本創作成像光學像片組通過D 13 M440441 線時’場曲小於0.05、像散小於〇·〇〗，畸變小於2%，其中， MF (Maximum Field)表示成像光學鏡片組的最大像場，3線為徑向場曲曲線，T線為切向場曲曲線》圓中清晰表明在本創作成像光學鏡片組的结構的情況下，球面像差小於〇〇5，場曲小於0.05 ’像散小於〇.(H ’畸變小於2%，因此各種像差場曲、像散及畸變仍得到有效的校正並獲得較高品質的圖像，由此可知本創作具有良好的成像品質。综上所述’本創作成像光學鏡片組藉由第一鏡片1 〇有正屈光力，物面為凸面，第二鏡片2 〇有負屈光力，像面為凹面，第二鏡片2 0的像面和物面至少有一面為非球面；該第三鏡片 3 0有正屈光力’物面凹面’像面為凸面，第三鏡片3 〇的物面和像面至少有一面為非球面；第四鏡片4 〇有正屈光力，物面為凹面，像面為凸面，第四鏡片4〇的物面和像面至少有一面為非球面；該第五鏡片5 G有負屈光力，物面側為凹面，像面側為凹面，物面和像面皆為非球面，有效補償各種像差、像曲、像散及畸變，從而提高成像品質。【圖式簡單說明】第一圖係本創作成像光學鏡片組的構成示意圖。第二圖係本創作成像光學鏡片組之第一較佳實施例之構成示意圖。第三圖係本創作成像光學鏡片組之第一較佳實施例之球面像差、場曲、像散及畸變曲線圖。第四圖係本創作成像光學鏡片組之第二較佳實施例之構成示意圖。第五圖係本創作成像光學鏡片組之第二較佳實_之球面像差、場曲、像散及畸變曲線圖。 14 M440441 第六圖係本創作成像光學鏡片組之第三較佳實施例之構成示意圖。第七圖係本創作成像光學鏡片組之第三較佳實施例之球面像差、場曲、像散及畸變曲線圖。【主要元件符號說明】第一鏡片 10 第二鏡片 20 第三鏡片 3 0 第四鏡片 40 第五鏡片 5 0 光圈 6 0 紅外濾光片 7 0 物面側 10 0 像片側 2 0 0In the case of 1 , the spherical aberration of the present imaging optical lens group through the D line (A = 587 nm), the F line (λ = 486 nm), and the C line (λ = 656 nm) is less than 0.05. In field curvature, astigmatism and variation, it means that the MF is within 2.87. When the imaging optical image set passes the D 13 M440441 line, the field curvature is less than 0.05, the astigmatism is less than 〇·〇, and the distortion is less than 2%. MF (Maximum Field) represents the maximum image field of the imaging optical lens group, 3 lines are radial field curvature curves, and T line is tangential field curvature curve. The circle clearly indicates the structure of the present imaging optical lens group. The spherical aberration is less than 〇〇5, the field curvature is less than 0.05' astigmatism is less than 〇. (H' distortion is less than 2%, so various aberration field curvature, astigmatism and distortion are still effectively corrected and a higher quality image is obtained. Therefore, it can be seen that the creation has good image quality. In summary, the present imaging optical lens group has positive refractive power by the first lens 1 , the convex surface of the object surface, and the negative refractive power of the second lens 2 , the image surface For the concave surface, at least one of the image surface and the object surface of the second lens 20 is aspherical; the third lens 30 has a positive refractive power 'object concave surface', the convex surface, and the third lens 3 〇 the object surface and image At least one side of the face is aspherical; the fourth lens 4 is positive The refractive power is such that the object surface is concave and the image surface is convex. The object surface and the image surface of the fourth lens 4 are at least one aspherical surface; the fifth lens 5 G has a negative refractive power, the object side is concave, and the image side is The concave surface, the object surface and the image surface are all aspherical surfaces, which effectively compensate for various aberrations, image curvature, astigmatism and distortion, thereby improving the image quality. [Simplified illustration] The first figure is a schematic diagram of the composition of the imaging optical lens group. The second figure is a schematic diagram of the first preferred embodiment of the present imaging optical lens set. The third figure is the spherical aberration, field curvature, astigmatism and the first preferred embodiment of the present imaging optical lens set. The fourth graph is a schematic diagram of the second preferred embodiment of the present invention. The fifth graph is the second preferred embodiment of the present invention. Astigmatism and distortion curve. 14 M440441 The sixth figure is a schematic diagram of the third preferred embodiment of the present imaging optical lens set. The seventh figure is a spherical image of the third preferred embodiment of the present imaging optical lens set. difference, Field curvature, astigmatism and distortion curve. [Main component symbol description] First lens 10 Second lens 20 Third lens 3 0 Fourth lens 40 Fifth lens 5 0 Aperture 6 0 Infrared filter 7 0 Object side 10 0 Photo side 2 0 0

鏡片表面：S卜 S2、S3、S4、S5、S6、S7、S8、S9、S10 空氣間隔：a、b、c、d、e、f 15Lens surface: Sb S2, S3, S4, S5, S6, S7, S8, S9, S10 Air separation: a, b, c, d, e, f 15

Claims

M440441 Sixth, the scope of application for patents: 1.-type imaging optics>; group, consisting of five lenses, the surface of each lens of the imaging optical lens group facing the object side is the object surface, and the surface facing the image side is like The surface aperture is placed on one side of the object side of the imaging optical lens group, and the infrared light beam is placed on one side of the image side of the imaging optical lens group, from the object side to the image side. The first lens has a positive refractive power and the object surface is convex; a second lens has a negative refractive power, the image surface is concave, and the image surface and the object surface of the second lens have at least One side is aspherical; - the second lens, the third lens has positive refractive power, the object surface is concave, the image surface is convex, and the object surface and the image surface of the third lens have at least one side aspherical; a fourth lens, the first lens The four lenses have a positive refractive power, the object surface is a concave surface, the image surface is a convex surface, and the object surface and the image surface of the fourth lens have at least one side aspherical surface; a fifth lens, the fifth lens has a negative refractive power, and the object surface side is a concave surface The image side is concave, and the object and image are both non- Spherical. 2. The imaging optical lens set according to claim i, wherein the imaging optical lens group satisfies the following relationship: 1.48 < N1 < 1.57 1.60< N2 < 1.65 1.48 < N3 < 1.57 wherein N1 is The refractive index of the first lens in the system, N2 is the refractive index of the second lens, and N3 is the refractive index of the third lens. 3. The imaging optical lens set according to claim 1, wherein the imaging optical lens group satisfies the following relationship: Vl > 50 V2 < 30 16