WO2022037158A1 - High-pixel 5p ultra-wide-angle lens - Google Patents
High-pixel 5p ultra-wide-angle lens Download PDFInfo
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- WO2022037158A1 WO2022037158A1 PCT/CN2021/095614 CN2021095614W WO2022037158A1 WO 2022037158 A1 WO2022037158 A1 WO 2022037158A1 CN 2021095614 W CN2021095614 W CN 2021095614W WO 2022037158 A1 WO2022037158 A1 WO 2022037158A1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
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- the invention relates to the technical field of lenses, and more particularly to a high-pixel 5P ultra-wide-angle lens.
- mobile phones In addition to the promotion of social software and the improvement of Internet speed from 2G/3G/4G to the 5G era, mobile phones have evolved from a simple communication application to taking photos and uploading and sharing life photos to relatives and friends, and also become a payment and shopping platform. , making the application of mobile phones more extensive, but also the necessities of our lives.
- a wide-angle lens is a wide angle, also known as a short-focus lens. Because the focal length of the wide-angle lens is very short, the scene projected on the film becomes smaller and the shooting angle of the lens is widened. In addition to shooting more scenes, it can also shoot a wide-angle image in a narrow environment.
- the difference between a wide-angle lens and a telephoto lens is mainly due to different focal lengths, different framing ranges and different subjects. 1. Different focal lengths. photography lens.
- the framing range is different.
- the framing range of the wide-angle lens is much larger than that of the standard lens, and this is the characteristic of the wide-angle lens, that is, the range of the framing can be wider than the range that we can see with the naked eye; the telephoto lens has A telescope-like function that can assist us in photographing distant objects.
- its framing range is much smaller than that of the naked eye (small viewpoint), which is convenient for long-distance capture.
- wide-angle lenses have a short focal length, a wide angle of view, and a deep depth of field. They are more suitable for taking photos of larger scenes, such as buildings and landscapes.
- a telephoto lens has a long focal length, a small angle of view, and a large image on the negative. So at the same distance a larger image can be captured than a standard lens. Suitable for shooting distant subjects. Because its depth of field range is smaller than that of standard lenses, it can more effectively blur the background to highlight the subject in focus, and the subject is generally farther away from the camera, resulting in less distortion in the perspective of the portrait, and more vivid portraits. , so people often refer to telephoto lenses as portrait lenses.
- the purpose of the present invention is to provide a high-pixel 5P ultra-wide-angle lens, which is not only small in size, good in performance, simple in assembly process, but also cost-effective.
- the present invention provides the following technical solutions:
- a high-resolution 5P ultra-wide-angle lens comprising a first lens, an aperture aperture, a second lens, a third lens, a fourth lens, and a fifth lens that are coaxially arranged in sequence from the object side to the image side; it is characterized in that,
- the first lens is a negative lens, wherein the side of P1 close to the object side is called P1R1, and its center is concave toward the object side; the side of P1 close to the image side is called P1R2, and its center is concave toward the image side;
- the second lens is a convex lens, wherein the side of P2 close to the object side is called P2R1, and its center is convex toward the object side; the side of P2 close to the image side is called P2R2, and its center is convex toward the image side;
- the third lens is a negative lens; wherein, the side of P3 close to the object side is called P3R1, and its center is convex toward the object side; the side of P3 close to the image side is called P3R2, and its center is concave toward the image side;
- the fourth lens is a convex lens, wherein the side of P4 close to the object side is called P4R1, and its center is concave to the object side; the side of P4 close to the image side is called P4R2, and its center is convex to the image side;
- the fifth lens is a negative lens, wherein the side of P5 close to the object side is called P5R1, and its center is convex toward the object side; the side of P5 close to the image side is called P5R2, and its center is concave toward the image side.
- P1 to P5 are all aspherical surfaces.
- the first lens, the second lens, the third lens, the fourth lens, and the fifth lens are made of plastic.
- At least one side of the first lens is aspherical; its focal length is f1; at least one side of the second lens is aspherical, whose focal length is f2, and the central thickness is T2; At least one side of the third lens is aspherical; its focal length is f3; at least one side of the fourth lens is aspherical; its focal length is f4; at least one side of the fifth lens is aspherical; its focal length is f5.
- the lens satisfies the following conditions: 0.15 ⁇ T2/TTL ⁇ 0.2
- the composite focal length of P1 ⁇ P5 system is f
- the total optical length of the lens is TTL
- the center thickness of the second lens (P2) is T2
- the combined focal length of the lens (P3) and the fourth lens (P4) is f234.
- the lens is applied to electronic products such as a camera lens.
- the present invention has the following characteristics:
- a total of 5 plastic lenses are used to form a lens group structure of "-, +, -, +, -", which can reduce the amount of distortion and achieve the best aberration correction. High-quality effects;
- the present invention can not only reduce the amount of distortion and achieve the best aberration correction, but also achieve the effect of thin and light lens, short TTL and high image quality; in addition, the traditional camera lens can meet the effect of wide angle , optical TTL is usually added to the lens structure to compensate for the amount of distortion.
- the structure of this lens will increase the cost, and also make the length of the lens very long and the outer diameter increase, which is not conducive to miniaturization. It will also complicate the process assembly, resulting in yield loss and increased cost; and the use of the 5P lens structure in this case can not only solve the problem of large distortion, but also solve the assembly process, yield, cost, and miniaturization. .
- Figure 1 is a schematic structural diagram of the present invention.
- FIG. 1 for a high-pixel 5P ultra-wide-angle lens disclosed in the present invention, including a first lens P1, an aperture aperture STO, a second lens P2, a third lens P3, a first lens P1, an aperture aperture STO, a second lens P2, a third lens P3,
- the first lens P1 is a negative lens, wherein the side of P1 close to the object side is called P1R1, and its center is concave toward the object side; the side of P1 close to the image side is called P1R2, and its center is concave toward the image side;
- the second lens P2 is a convex lens, wherein the side of P2 close to the object side is called P2R1, and its center is convex toward the object side; the side of P2 close to the image side is called P2R2, and its center is convex toward the image side;
- the third lens P3 is a negative lens; wherein, the side of P3 close to the object side is called P3R1, and its center is convex toward the object side; the side of P3 close to the image side is called P3R2, and its center is concave toward the image side;
- the fourth lens P4 is a convex lens, wherein the side of P4 close to the object side is called P4R1, and its center is concave to the object side; the side of P4 close to the image side is called P4R2, and its center is convex toward the image side;
- the fifth lens P5 is a negative lens, wherein the side of P5 close to the object side is called P5R1, and its center is convex toward the object side; the side of P5 close to the image side is called P5R2, and its center is concave toward the image side.
- the first lens P1, the aperture aperture STO, the second lens P2, the third lens P3, the fourth lens P4, the fifth lens P5, the infrared filter IR and the chip photosensitive surface sensor are all non-contact lenses. spherical.
- At least one side of the first lens is aspherical; its focal length is f1; at least one side of the second lens is aspherical, its focal length is f2, and the central thickness is T2; at least one side of the third lens is aspherical; its focal length is f3; at least one side of the fourth lens is aspherical; its focal length is f4; at least one side of the fifth lens is aspherical; its focal length is f5.
- the lens satisfies the following conditions:
- the composite focal length of P1-P5 system is f
- the total optical length of the lens is TTL
- the center thickness of the second lens P2 is T2
- the combined focal length of the four elements P4 is f234.
- the lens data of the above-mentioned lenses are shown in Table 1 below.
- the first lens is a crescent-shaped negative lens that is convex to the object side and concave to the image side, and at least one side is aspherical; its focal length is f1;
- the second lens is a positive crescent lens that is convex to the object side and concave to the image side, at least one side is aspherical; its focal length is f2;
- the aperture is between the second lens and the third lens
- the third lens is a biconvex positive lens with at least one aspherical surface; its focal length is f3;
- the fourth lens is a biconvex positive lens with at least one aspherical surface; its focal length is f4;
- the fifth lens is a negative lens with a convex center facing the object side and a concave center facing the image side, and at least one side is aspherical; its focal length is f5.
- the MTF performance is better, but the Distortion performance is poor, and the TTL is relatively long, and at the same time, it is different from the lens structure of the present invention:
- the first lens is a crescent-shaped negative lens that is convex to the object side and concave to the image side, and at least one side is aspherical; its focal length is f1;
- the second lens is a positive crescent lens that is convex to the object side and concave to the image side, at least one side is aspherical; its focal length is f2;
- the aperture is between the second lens and the third lens
- the third lens is a biconvex positive lens with at least one aspherical surface; its focal length is f3;
- the fourth lens is a double concave negative lens, at least one side is aspherical; its focal length is f4;
- the fifth lens is a biconvex positive lens, at least one side is aspherical, and at least one side is aspherical; its focal length is f5.
- the lens of the present invention satisfies: 0.15 ⁇ T2/TTL ⁇ 0.2; 0.4 ⁇ T2/f ⁇ 0.6; 0.8 ⁇ f234/f ⁇ 1.0. It is beneficial to control the amount of chromatic aberration and distortion, which can reduce the amount of distortion and achieve the best aberration correction.
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Abstract
Disclosed in the present invention is a high-pixel 5P ultra-wide-angle lens, comprising a first lens, an aperture stop, a second lens, a third lens, a fourth lens, a fifth lens, an infrared filter plate, and a chip photosensitive surface; the first lens is a negative lens; the second lens is a convex lens; the third lens is a negative lens; the fourth lens is a convex lens; and the fifth lens is a negative lens. The present invention uses 5 plastic material lenses to form a "-, +, -, +, -" lens structure, and can reduce the amount of distortion and achieve optimal aberration correction, and can also achieve the effects of a thin and light lens, a short TTL, and high image quality; the 5P structure used in the present invention not only solves the problem of large imaging distortion, but also solves problems of the lens assembly process, yield, cost, and miniaturisation.
Description
本发明涉及镜头技术领域,更具体的说是涉及一种高画素的5P超广角镜头。The invention relates to the technical field of lenses, and more particularly to a high-pixel 5P ultra-wide-angle lens.
在目前信息发达的时代对于电子产品的依赖比重越来越大也使得人类更是离不开电子产品所带来的便利，也因此延伸手机这个产品，以往手机只是单纯的接收讯息接听电话，由于LCD屏幕的发明以及网络讯息的发达使得在3C产业链上的应用对于光学镜头的应用需求越来越多，从起初的VGA机种到2M～5M～8M～13M对于画素的需求越来越高，所以手机逐渐取代了数码相机的应用，变成每个人生活中拍照的必须品，也形成了为生活写日记的***台，使得手机应用更加的广泛，更是支配我们生活必须品。In the current era of information development, the proportion of dependence on electronic products is increasing, which makes human beings more inseparable from the convenience brought by electronic products. Therefore, the product of mobile phones has been extended. In the past, mobile phones were only used to receive messages and answer calls. The invention of the LCD screen and the development of network information have made the application in the 3C industry chain more and more demanding for the application of optical lenses. , so the mobile phone gradually replaced the application of the digital camera and became a necessity for everyone to take pictures in life, and also formed the habit of writing a diary for life, taking photos of their own life every day and recording what they saw in life various phenomena. In addition to the promotion of social software and the improvement of Internet speed from 2G/3G/4G to the 5G era, mobile phones have evolved from a simple communication application to taking photos and uploading and sharing life photos to relatives and friends, and also become a payment and shopping platform. , making the application of mobile phones more extensive, but also the necessities of our lives.
然而生活型态的转变也对手机功能的要求进行改变，从单纯的拍照进而演变成需要搭配一般镜头或是望远镜头及超广角的功能，而达成光学变倍的功能。传统的光学变倍镜头都是体积大，设计困难度大以及性能不佳，与手机组装搭配起来外观造型不好看，所以无法跟手机进行搭配而达到变倍的效果。However, the change in lifestyle has also changed the requirements for the functions of mobile phones, from simply taking pictures to the functions that need to be matched with ordinary lenses or telescopic lenses and ultra-wide-angle to achieve the function of optical zoom. Traditional optical zoom lenses are bulky, difficult to design, and have poor performance. They do not look good when assembled with mobile phones, so they cannot be matched with mobile phones to achieve the effect of zooming.
广角镜即wide angle，又叫短焦镜头。广角镜因焦距非常短，所以投射到底片上的景物就变小了扩阔镜头拍摄角度，除可拍摄更多景物，更能在狭 窄的环境下拍摄出宽阔角度的影像。广角镜头和长焦镜头的区别主要在于焦距不同、取景范围不同和拍摄对象不同1、焦距不同广角镜头是在等效焦距17mm——35mm的摄影镜头；长焦镜头是在等效焦距60mm——400mm的摄影镜头。A wide-angle lens is a wide angle, also known as a short-focus lens. Because the focal length of the wide-angle lens is very short, the scene projected on the film becomes smaller and the shooting angle of the lens is widened. In addition to shooting more scenes, it can also shoot a wide-angle image in a narrow environment. The difference between a wide-angle lens and a telephoto lens is mainly due to different focal lengths, different framing ranges and different subjects. 1. Different focal lengths. photography lens.
取景范围不同在同一个地点取景，广角镜头的取景范围要比标准镜头多得多，而这就是广角镜头的特点，即其取景的范围可以比我们肉眼所及的范围还要再广；长焦镜头有种类似于望远镜的功能，可以协助我们拍摄到远方的物体。但是其取景范围远远比肉眼所及范围小(视点小)，方便远距离抓拍。The framing range is different. When framing in the same place, the framing range of the wide-angle lens is much larger than that of the standard lens, and this is the characteristic of the wide-angle lens, that is, the range of the framing can be wider than the range that we can see with the naked eye; the telephoto lens has A telescope-like function that can assist us in photographing distant objects. However, its framing range is much smaller than that of the naked eye (small viewpoint), which is convenient for long-distance capture.
拍摄对象不同广角镜头焦距很短，视角较宽，而景深却很深，比较适合拍摄较大场景的照片，如建筑、风景等题材。长焦镜头的焦距长，视角小，在底片上成像大。所以在同一距离上能拍出比标准镜头更大的影象。适合于拍摄远处的对象。由于它的景深范围比标准镜头小，因此可以更有效地虚化背景突出对焦主体，而且被摄主体与照相机一般相距比较远，在人像的透视方面出现的变形较小，拍出的人像更生动，因此人们常把长焦镜头称为人像镜头。With different subjects, wide-angle lenses have a short focal length, a wide angle of view, and a deep depth of field. They are more suitable for taking photos of larger scenes, such as buildings and landscapes. A telephoto lens has a long focal length, a small angle of view, and a large image on the negative. So at the same distance a larger image can be captured than a standard lens. Suitable for shooting distant subjects. Because its depth of field range is smaller than that of standard lenses, it can more effectively blur the background to highlight the subject in focus, and the subject is generally farther away from the camera, resulting in less distortion in the perspective of the portrait, and more vivid portraits. , so people often refer to telephoto lenses as portrait lenses.
发明内容SUMMARY OF THE INVENTION
有鉴于此，本发明目的在于提供一种高画素的5P超广角镜头，其不仅体积小、性能佳、组装工艺简单，而且性价比高。In view of this, the purpose of the present invention is to provide a high-pixel 5P ultra-wide-angle lens, which is not only small in size, good in performance, simple in assembly process, but also cost-effective.
为实现上述目的，本发明提供如下技术方案：To achieve the above object, the present invention provides the following technical solutions:
一种高画素的5P超广角镜头，包括从物侧至像侧依次同轴设置的第一镜片、口径光圈、第二镜片、第三镜片、第四镜片、第五镜片；其特征在于，A high-resolution 5P ultra-wide-angle lens, comprising a first lens, an aperture aperture, a second lens, a third lens, a fourth lens, and a fifth lens that are coaxially arranged in sequence from the object side to the image side; it is characterized in that,
所述第一镜片为负透镜，其中，P1靠近物侧的那面称为P1R1，其中心为凹向物侧；P1靠近像侧的那面称为P1R2，其中心为凹向像侧；The first lens is a negative lens, wherein the side of P1 close to the object side is called P1R1, and its center is concave toward the object side; the side of P1 close to the image side is called P1R2, and its center is concave toward the image side;
所述第二镜片为凸透镜，其中，P2靠近物侧的那面称为P2R1，其中心为凸向物侧；P2靠近像侧的那面称为P2R2，其中心为凸向像侧；The second lens is a convex lens, wherein the side of P2 close to the object side is called P2R1, and its center is convex toward the object side; the side of P2 close to the image side is called P2R2, and its center is convex toward the image side;
所述第三镜片为负透镜；其中，P3靠近物侧的那面称为P3R1，其中心为凸向物侧；P3靠近像侧的那面称为P3R2，其中心为凹向像侧；The third lens is a negative lens; wherein, the side of P3 close to the object side is called P3R1, and its center is convex toward the object side; the side of P3 close to the image side is called P3R2, and its center is concave toward the image side;
所述第四镜片为凸透镜，其中，P4靠近物侧的那面称为P4R1，其中心为凹向物侧；P4靠近像侧的那面称为P4R2，其中心为凸向像侧；The fourth lens is a convex lens, wherein the side of P4 close to the object side is called P4R1, and its center is concave to the object side; the side of P4 close to the image side is called P4R2, and its center is convex to the image side;
所述第五镜片为负透镜，其中，P5靠近物侧的那面称为P5R1，其中心为凸向物侧；P5靠近像侧的那面称为P5R2，其中心为凹向像侧。The fifth lens is a negative lens, wherein the side of P5 close to the object side is called P5R1, and its center is convex toward the object side; the side of P5 close to the image side is called P5R2, and its center is concave toward the image side.
优选的，在上述一种高画素的5P超广角镜头中，P1～P5皆为非球面。Preferably, in the above-mentioned high pixel 5P ultra-wide-angle lens, P1 to P5 are all aspherical surfaces.
优选的，在上述一种高画素的5P超广角镜头中所述第一镜片、第二镜片、第三镜片、第四镜片、第五镜片的材质为塑料。Preferably, in the above-mentioned high-resolution 5P ultra-wide-angle lens, the first lens, the second lens, the third lens, the fourth lens, and the fifth lens are made of plastic.
优选的，在上述一种高画素的5P超广角镜头中，所述第一镜片至少一面为非球面；其焦距为f1；第二镜片至少一面为非球面，其焦距为f2，中心厚度为T2；第三镜片至少一面为非球面；其焦距为f3；第四镜片至少一面为非球面；其焦距为f4；第五镜片至少一面为非球面；其焦距为f5。Preferably, in the above-mentioned high-pixel 5P ultra-wide-angle lens, at least one side of the first lens is aspherical; its focal length is f1; at least one side of the second lens is aspherical, whose focal length is f2, and the central thickness is T2; At least one side of the third lens is aspherical; its focal length is f3; at least one side of the fourth lens is aspherical; its focal length is f4; at least one side of the fifth lens is aspherical; its focal length is f5.
优选的，在上述一种高画素的5P超广角镜头中，该镜头满足以下条件：0.15<T2/TTL<0.2Preferably, in the above-mentioned high-pixel 5P ultra-wide-angle lens, the lens satisfies the following conditions: 0.15<T2/TTL<0.2
0.4<T2/f<0.60.4<T2/f<0.6
0.8<f234/f<1.0；其中，P1～P5***的合成焦距为f，镜头的光学总长为TTL；第二镜片(P2)的中心厚度为T2；第二片镜片(P2)及第三片镜片(P3)及第四片镜片(P4)的合成焦距为f234。0.8<f234/f<1.0; Among them, the composite focal length of P1~P5 system is f, the total optical length of the lens is TTL; the center thickness of the second lens (P2) is T2; the second lens (P2) and the third lens The combined focal length of the lens (P3) and the fourth lens (P4) is f234.
优选的，在上述一种高画素的5P超广角镜头中，该镜头应用于摄像镜头等电子产品上。Preferably, in the above-mentioned high-pixel 5P ultra-wide-angle lens, the lens is applied to electronic products such as a camera lens.
经由上述的技术方案可知，与现有技术相比，本发明具有以下特点：As can be seen from the above-mentioned technical solutions, compared with the prior art, the present invention has the following characteristics:
总共使用5片塑料镜片，组成“-、+、-、+、-”的镜组结构，可以达到降低畸变的变形量以及达到最佳的像差校正，同时也能达到镜头轻薄、短TTL、高画质的效果；A total of 5 plastic lenses are used to form a lens group structure of "-, +, -, +, -", which can reduce the amount of distortion and achieve the best aberration correction. High-quality effects;
本发明运用5P结构不但可以达到降低畸变的变形量以及达到最佳的像差校正，同时也能达到镜头轻薄、短TTL、高画质的效果；另外，传统的摄像镜头为了要满足广角的效果，通常会在镜头结构上增加光学TTL，来进行畸变量的补偿，然而此种镜片的结构会造成成本上的增加，也让镜头的长度变得很长及外径增大不利于小型化，也会形成工艺组装上的复杂化，造成良率上的损失增加成本；而运用本案5P的镜片结构不但可以解决大的畸变问题，同时也解决了组装工艺、良率、成本、小型化的问题。Using the 5P structure, the present invention can not only reduce the amount of distortion and achieve the best aberration correction, but also achieve the effect of thin and light lens, short TTL and high image quality; in addition, the traditional camera lens can meet the effect of wide angle , optical TTL is usually added to the lens structure to compensate for the amount of distortion. However, the structure of this lens will increase the cost, and also make the length of the lens very long and the outer diameter increase, which is not conducive to miniaturization. It will also complicate the process assembly, resulting in yield loss and increased cost; and the use of the 5P lens structure in this case can not only solve the problem of large distortion, but also solve the assembly process, yield, cost, and miniaturization. .
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据提供的附图获得其他的附图。In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to the provided drawings without creative work.
图1附图为本发明的结构示意图。Figure 1 is a schematic structural diagram of the present invention.
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
请参阅附图1为本发明公开的一种高画素的5P超广角镜头，包括从物侧至像侧依次同轴设置的第一镜片P1、口径光圈STO、第二镜片P2、第三镜片P3、第四镜片P4、第五镜片P5、红外滤波片IR以及芯片感光面sensor；其特征在于，Please refer to FIG. 1 for a high-pixel 5P ultra-wide-angle lens disclosed in the present invention, including a first lens P1, an aperture aperture STO, a second lens P2, a third lens P3, a first lens P1, an aperture aperture STO, a second lens P2, a third lens P3, The fourth lens P4, the fifth lens P5, the infrared filter IR and the chip photosensitive surface sensor; it is characterized in that,
所述第一镜片P1为负透镜，其中，P1靠近物侧的那面称为P1R1，其中心为凹向物侧；P1靠近像侧的那面称为P1R2，其中心为凹向像侧；The first lens P1 is a negative lens, wherein the side of P1 close to the object side is called P1R1, and its center is concave toward the object side; the side of P1 close to the image side is called P1R2, and its center is concave toward the image side;
所述第二镜片P2为凸透镜，其中，P2靠近物侧的那面称为P2R1，其中心为凸向物侧；P2靠近像侧的那面称为P2R2，其中心为凸向像侧；The second lens P2 is a convex lens, wherein the side of P2 close to the object side is called P2R1, and its center is convex toward the object side; the side of P2 close to the image side is called P2R2, and its center is convex toward the image side;
所述第三镜片P3为负透镜；其中，P3靠近物侧的那面称为P3R1，其中心为凸向物侧；P3靠近像侧的那面称为P3R2，其中心为凹向像侧；The third lens P3 is a negative lens; wherein, the side of P3 close to the object side is called P3R1, and its center is convex toward the object side; the side of P3 close to the image side is called P3R2, and its center is concave toward the image side;
所述第四镜片P4为凸透镜，其中，P4靠近物侧的那面称为P4R1，其中心为凹向物侧；P4靠近像侧的那面称为P4R2，其中心为凸向像侧；The fourth lens P4 is a convex lens, wherein the side of P4 close to the object side is called P4R1, and its center is concave to the object side; the side of P4 close to the image side is called P4R2, and its center is convex toward the image side;
所述第五镜片P5为负透镜，其中，P5靠近物侧的那面称为P5R1，其中心为凸向物侧；P5靠近像侧的那面称为P5R2，其中心为凹向像侧。The fifth lens P5 is a negative lens, wherein the side of P5 close to the object side is called P5R1, and its center is convex toward the object side; the side of P5 close to the image side is called P5R2, and its center is concave toward the image side.
为了进一步优化上述技术方案，所述第一镜片P1、口径光圈STO、第二镜片P2、第三镜片P3、第四镜片P4、第五镜片P5、红外滤波片IR以及芯片感光面sensor均为非球面。In order to further optimize the above technical solution, the first lens P1, the aperture aperture STO, the second lens P2, the third lens P3, the fourth lens P4, the fifth lens P5, the infrared filter IR and the chip photosensitive surface sensor are all non-contact lenses. spherical.
关于镜片与镜片之间的位置关系以及镜片焦距的设定，所述第一镜片)至少一面为非球面；其焦距为f1；第二镜片至少一面为非球面，其焦距为f2，中心厚度为T2；第三镜片至少一面为非球面；其焦距为f3；第四镜片至少一面为非球面；其焦距为f4；第五镜片至少一面为非球面；其焦距为f5。Regarding the positional relationship between the lens and the lens and the setting of the focal length of the lens, at least one side of the first lens is aspherical; its focal length is f1; at least one side of the second lens is aspherical, its focal length is f2, and the central thickness is T2; at least one side of the third lens is aspherical; its focal length is f3; at least one side of the fourth lens is aspherical; its focal length is f4; at least one side of the fifth lens is aspherical; its focal length is f5.
为了进一步优化上述技术方案，该镜头满足以下条件：In order to further optimize the above technical solution, the lens satisfies the following conditions:
0.15<T2/TTL<0.20.15<T2/TTL<0.2
0.4<T2/f<0.60.4<T2/f<0.6
0.8<f234/f<1.0；其中，P1～P5***的合成焦距为f，镜头的光学总长为TTL；第二镜片P2的中心厚度为T2；第二片镜片P2及第三片镜片P3及第四片镜片P4的合成焦距为f234。0.8<f234/f<1.0; the composite focal length of P1-P5 system is f, the total optical length of the lens is TTL; the center thickness of the second lens P2 is T2; the second lens P2 and the third lens P3 and the third lens The combined focal length of the four elements P4 is f234.
上述透镜的透镜数据由以下表1所示。The lens data of the above-mentioned lenses are shown in Table 1 below.
【表1】【Table 1】
上述透镜满足的条件如表2所示。The conditions that the above-mentioned lenses satisfy are shown in Table 2.
【表2】【Table 2】
为了进一步优化上述技术方案，参见下列数据：In order to further optimize the above technical solutions, please refer to the following data:
从以下第一实施例到第四实施例，From the following first to fourth embodiments,
| TV DistortionTV Distortion | Optical Distortion f234/fOptical Distortion f234/f | T2/fT2/f | T2/TTLT2/TTL |
| 第一实施例first embodiment | -7.01％-7.01% | -17.77％ 0.918-17.77% 0.918 | 0.5410.541 | 0.1840.184 |
| 第二实施例Second Embodiment | -11.63％-11.63% | -20.28％ 0.905-20.28% 0.905 | 0.4650.465 | 0.1640.164 |
| 第三实施例Third Embodiment | -7.06％-7.06% | -17.77％ 0.921-17.77% 0.921 | 0.5550.555 | 0.1890.189 |
| 第四实施例Fourth Embodiment | -9.02％-9.02% | -17.80％ 0.942-17.80% 0.942 | 0.4940.494 | 0.1700.170 |
| 对比实施例1Comparative Example 1 | -6.61％-6.61% | -14.70％ 1.015-14.70% 1.015 | 0.3880.388 | 0.1290.129 |
| 对比实施例2Comparative Example 2 | -13.85％-13.85% | -42.00％ 2.218-42.00% 2.218 | 0.2460.246 | 0.0470.047 |
从实施例1-4可以看出如果要得到较小的TV distortion的表现T2/f与T2/TTL的数值要越大越好。From Examples 1-4, it can be seen that the larger the values of T2/f and T2/TTL, the better the performance if a smaller TV distortion is to be obtained.
而从对比实施例1来看:And from Comparative Example 1:
虽有较好的Distortion表现，但是MTF及色差部分表现较差，同时TTL也相对的较长同时与本发明的镜片结构不同：Although it has good Distortion performance, the MTF and chromatic aberration performance is poor, and the TTL is relatively long and different from the lens structure of the present invention:
其第一片镜片为凸面向物侧凹面向像侧之新月形负透镜、至少一面为非球面；其焦距为f1；The first lens is a crescent-shaped negative lens that is convex to the object side and concave to the image side, and at least one side is aspherical; its focal length is f1;
第二片镜片为凸面向物侧凹面向像侧之新月形正透镜、至少一面为非球面；其焦距为f2；The second lens is a positive crescent lens that is convex to the object side and concave to the image side, at least one side is aspherical; its focal length is f2;
其中光圈介于第二镜片与第三镜片之间；The aperture is between the second lens and the third lens;
第三片镜片为双凸形正透镜、至少一面为非球面；其焦距为f3；The third lens is a biconvex positive lens with at least one aspherical surface; its focal length is f3;
第四片镜片为双凸形正透镜、至少一面为非球面；其焦距为f4；The fourth lens is a biconvex positive lens with at least one aspherical surface; its focal length is f4;
第五片镜片为中心凸面向物侧，中心凹面向像侧之负透镜、至少一面为非球面；其焦距为f5。The fifth lens is a negative lens with a convex center facing the object side and a concave center facing the image side, and at least one side is aspherical; its focal length is f5.
从对比实施例2来看:From comparative example 2:
MTF表现较佳，但是Distortion的表现较差，同时TTL也相对的较长，同时与与本发明的镜片结构不同：The MTF performance is better, but the Distortion performance is poor, and the TTL is relatively long, and at the same time, it is different from the lens structure of the present invention:
其第一片镜片为凸面向物侧凹面向像侧之新月形负透镜、至少一面为非球面；其焦距为f1；The first lens is a crescent-shaped negative lens that is convex to the object side and concave to the image side, and at least one side is aspherical; its focal length is f1;
第二片镜片为凸面向物侧凹面向像侧之新月形正透镜、至少一面为非球面；其焦距为f2；The second lens is a positive crescent lens that is convex to the object side and concave to the image side, at least one side is aspherical; its focal length is f2;
其中光圈介于第二镜片与第三镜片之间；The aperture is between the second lens and the third lens;
第三片镜片为双凸形正透镜、至少一面为非球面；其焦距为f3；The third lens is a biconvex positive lens with at least one aspherical surface; its focal length is f3;
第四片镜片为双凹形负透镜、至少一面为非球面；其焦距为f4；The fourth lens is a double concave negative lens, at least one side is aspherical; its focal length is f4;
第五片镜片为双凸形正透镜、至少一面为非球面、至少一面为非球面；其焦距为f5。The fifth lens is a biconvex positive lens, at least one side is aspherical, and at least one side is aspherical; its focal length is f5.
综上可知：本发明的镜片满足:0.15<T2/TTL<0.2；0.4<T2/f<0.6；0.8<f234/f<1.0。有利于控制色差及畸变量，可以达到降低畸变的变形量以及达到最佳的像差校正，同时也能达到镜头轻薄、短TTL、高画质的效果。To sum up, it can be seen that the lens of the present invention satisfies: 0.15<T2/TTL<0.2; 0.4<T2/f<0.6; 0.8<f234/f<1.0. It is beneficial to control the amount of chromatic aberration and distortion, which can reduce the amount of distortion and achieve the best aberration correction.
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。对于实施例公开的装置而言，由于其与实施例公开的方法相对应，所以描述的比较简单，相关之处参见方法部分说明即可。The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other. As for the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant part can be referred to the description of the method.
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。The above description of the disclosed embodiments enables any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
- 一种高画素的5P超广角镜头，包括从物侧至像侧依次同轴设置的第一镜片(P1)、口径光圈(STO)、第二镜片(P2)、第三镜片(P3)、第四镜片(P4)、第五镜片(P5)、红外滤波片(IR)；其特征在于，A high-pixel 5P ultra-wide-angle lens, comprising a first lens (P1), an aperture aperture (STO), a second lens (P2), a third lens (P3), a fourth lens (P3), a first lens (P1), an aperture aperture (STO), a second lens (P2), a third lens (P3), and a A lens (P4), a fifth lens (P5), an infrared filter (IR); it is characterized in that,所述第一镜片(P1)为负透镜，其中，P1靠近物侧的那面称为P1R1，其中心为凹向物侧；P1靠近像侧的那面称为P1R2，其中心为凹向像侧；The first lens (P1) is a negative lens, wherein the side of P1 close to the object side is called P1R1, and its center is concave toward the object side; the side of P1 close to the image side is called P1R2, and its center is concave toward the image. side;所述第二镜片(P2)为凸透镜，其中，P2靠近物侧的那面称为P2R1，其中心为凸向物侧；P2靠近像侧的那面称为P2R2，其中心为凸向像侧；The second lens (P2) is a convex lens, wherein the side of P2 close to the object side is called P2R1, and its center is convex toward the object side; the side of P2 close to the image side is called P2R2, and its center is convex toward the image side. ;所述第三镜片(P3)为负透镜；其中，P3靠近物侧的那面称为P3R1，其中心为凸向物侧；P3靠近像侧的那面称为P3R2，其中心为凹向像侧；The third lens (P3) is a negative lens; the side of P3 close to the object side is called P3R1, and its center is convex toward the object side; the side of P3 close to the image side is called P3R2, and its center is concave toward the image. side;所述第四镜片(P4)为凸透镜，其中，P4靠近物侧的那面称为P4R1，其中心为凹向物侧；P4靠近像侧的那面称为P4R2，其中心为凸向像侧；The fourth lens (P4) is a convex lens, wherein the side of P4 close to the object side is called P4R1, and its center is concave toward the object side; the side of P4 close to the image side is called P4R2, and its center is convex toward the image side. ;所述第五镜片(P5)为负透镜，其中，P5靠近物侧的那面称为P5R1，其中心为凸向物侧；P5靠近像侧的那面称为P5R2，其中心为凹向像侧。The fifth lens (P5) is a negative lens, wherein the side of P5 close to the object side is called P5R1, and its center is convex toward the object side; the side of P5 close to the image side is called P5R2, and its center is concave toward the image. side.
- 根据权利要求1所述的一种高画素的5P超广角镜头，其特征在于，P1～P5皆为非球面。The high-pixel 5P ultra-wide-angle lens according to claim 1, wherein P1 to P5 are all aspherical.
- 根据权利要求1所述的一种高画素的5P超广角镜头，其特征在于，所述第一镜片(P1)、第二镜片(P2)、第三镜片(P3)、第四镜片(P4)、第五镜片(P5)的材质为塑料。A high-pixel 5P ultra-wide-angle lens according to claim 1, characterized in that the first lens (P1), the second lens (P2), the third lens (P3), the fourth lens (P4), The material of the fifth lens (P5) is plastic.
- 根据权利要求1所述的一种高画素的5P超广角镜头，其特征在于，所述第一镜片(P1)至少一面为非球面；其焦距为f1；第二镜片(P2)至少一面为非球面，其焦距为f2，中心厚度为T2；第三镜片(P3)至少一面为非球面；其焦距为f3；第四镜片(P4)至少一面为非球面；其焦距为f4；第五镜片(P5)至少一面为非球面；其焦距为f5。The high-pixel 5P ultra-wide-angle lens according to claim 1, wherein at least one side of the first lens (P1) is aspherical; its focal length is f1; and at least one side of the second lens (P2) is aspherical , its focal length is f2, and its central thickness is T2; at least one side of the third lens (P3) is aspherical; its focal length is f3; at least one side of the fourth lens (P4) is aspherical; its focal length is f4; the fifth lens (P5) ) is aspheric on at least one side; its focal length is f5.
- 根据权利要求4所述的一种高画素的5P超广角镜头，其特征在于，该镜头满足以下条件：0.15<T2/TTL<0.2A high-pixel 5P ultra-wide-angle lens according to claim 4, wherein the lens satisfies the following conditions: 0.15<T2/TTL<0.20.4<T2/f<0.60.4<T2/f<0.60.8<f234/f<1.0；其中，P1～P5***的合成焦距为f，镜头的光学总长为TTL；第二镜片(P2)的中心厚度为T2；第二片镜片(P2)及第三片镜片(P3)及第四片镜片(P4)的合成焦距为f234。0.8<f234/f<1.0; Among them, the composite focal length of P1~P5 system is f, the total optical length of the lens is TTL; the center thickness of the second lens (P2) is T2; the second lens (P2) and the third lens The combined focal length of the lens (P3) and the fourth lens (P4) is f234.
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| JP2012211935A (en) * | 2011-03-30 | 2012-11-01 | Fujifilm Corp | Imaging lens and imaging apparatus |
| CN104166220A (en) * | 2014-07-15 | 2014-11-26 | 浙江舜宇光学有限公司 | 3d interactive lens |
| CN105807398A (en) * | 2016-01-20 | 2016-07-27 | 玉晶光电(厦门)有限公司 | Portable electronic apparatus and optical imaging lens thereof |
| CN106154508A (en) * | 2014-08-28 | 2016-11-23 | 三星电机株式会社 | Optical system |
| CN106886081A (en) * | 2015-12-15 | 2017-06-23 | 大立光电股份有限公司 | Image capturing optical lens assembly, image capturing device and electronic device |
| CN111781709A (en) * | 2020-08-20 | 2020-10-16 | 湖北华鑫光电有限公司 | 5P super wide-angle lens of high picture element |
-
2020
- 2020-08-20 CN CN202010842685.XA patent/CN111781709A/en active Pending
-
2021
- 2021-05-24 WO PCT/CN2021/095614 patent/WO2022037158A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012211935A (en) * | 2011-03-30 | 2012-11-01 | Fujifilm Corp | Imaging lens and imaging apparatus |
| CN104166220A (en) * | 2014-07-15 | 2014-11-26 | 浙江舜宇光学有限公司 | 3d interactive lens |
| CN106154508A (en) * | 2014-08-28 | 2016-11-23 | 三星电机株式会社 | Optical system |
| CN106886081A (en) * | 2015-12-15 | 2017-06-23 | 大立光电股份有限公司 | Image capturing optical lens assembly, image capturing device and electronic device |
| CN105807398A (en) * | 2016-01-20 | 2016-07-27 | 玉晶光电(厦门)有限公司 | Portable electronic apparatus and optical imaging lens thereof |
| CN111781709A (en) * | 2020-08-20 | 2020-10-16 | 湖北华鑫光电有限公司 | 5P super wide-angle lens of high picture element |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111781709A (en) | 2020-10-16 |
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