TWM356915U - Wide-angle photographic lens and photographic device - Google Patents
Wide-angle photographic lens and photographic device Download PDFInfo
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- TWM356915U TWM356915U TW97218493U TW97218493U TWM356915U TW M356915 U TWM356915 U TW M356915U TW 97218493 U TW97218493 U TW 97218493U TW 97218493 U TW97218493 U TW 97218493U TW M356915 U TWM356915 U TW M356915U
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M356915 五、新型說明： 【新型所屬之技術領域】 本創作係關於-種廣賴影透鏡及攝影裝置，尤指一 種適用於使用 CCD(Charge c〇upled Device)或 5 CMOSCComplementary Metal 〇xide Semic〇nductor) 影凡件的車載用相機、移動終端用相機、監視相機等的廣 角攝衫透鏡及包括該攝影透鏡的攝影裝置。 【先前技術】 1〇〜近幾年’⑽或⑽⑽等攝影元件的小型化及高像素 浔、1展肖此同日守，具備這些攝影元件的攝影設備本 體的小型化也得以發展，對其所裝載的攝影透鏡也要求小 型化、輕量化。 *而且，為了車載用相機、移動終端用相機、監視相機 15等所使用的攝影透鏡在廣範圍確保良好的視野，就要求不 僅廣角而且在成像區域整體具有高成像性能。 進步，至於上述領域的攝影透鏡，從期待低成本化 方面而言，要求透鏡片數少的光學系統。以往，如上述領 域的4片結構的廣角攝影透鏡，有以下專利前案^所述的 20 透鏡。 【專利前案1】日本特開2〇〇2_244〇3丨號公報； 【專利前案2】日本特開2005_227426號公報； 【專利前案3】日本特開2〇〇6_2597〇4公報。 M356915 …而在專利則案卜2所記載的 從最靠物體側的透鏡面到德品从〃角攝心透鏡甶於 一…-f 的距離長，因此不能說滿足 t化的要求。在專利前宰3所今哉认电 ia ^ . ±x ^ . 茶3所3己載的廣角攝影透鏡，雖實 見了光轴方向的小型化，作像 Φ ^ 彳—像面周邊部所會聚的軸外光的 主光線對像面的入射的角声 — 两度大即，成為遠心性低的光學 糸、’先。右在使用攝影元件的梦罟、南田土 千的哀置適用m心性低的光學系 統，則發生圖像周邊部變暗的現象，即所謂陰影。 【新型内容】 1〇 本創作是寥於上述問題，其目的在於，提供一種小型 且低成本、且遠心性比以往更得以改善、並可保持高光學 性能的廣角攝影透鏡，及具備該廣角攝影透鏡的攝影裝置。 本創作的廣角攝影透鏡，其中，從物體側起依次包 括：將凸面朝向物體側的且為彎月形狀的負的第一透鏡、 15將凹面朝向像側且至w面為非球面的負的帛二透鏡、將& 面朝向物體側且至少〗面為非球面的正的第三透鏡、光欄、 和將凸面朝向像側且至少i面為非球面的第四透鏡，將第一 透鏡及第二透鏡的合成焦距設為fl 2,第三透鏡及第四透鏡 的合成焦距設為f3 4 ’光攔和第四透鏡的物體惻面的光軸上 20的距離設為d7,整個系統的焦距設為f時，滿足以下條件式 ⑴、（2): " ⑴； (2)。 -〇.4<fl2/f34<-0.2 〇.30<d7/f<0.65 M356915 需要說明的是，上述的「將凸面朝向物體側的且為彎 月开y狀」、「將凹面朝向像側」、「將凸面朝向物體側」、 「將凸面朝向像側」，均為光軸附近的。 本創作的廣角攝影透鏡，如下結構；即透過將透鏡片 數至Lj為4片’實現低成本，且透過適當選擇各透鏡的 結構’將第二、第2、第四透鏡設為非球面，滿足條件式M356915 V. New description: [New technical field] This creation is about a wide range of lenses and photographic devices, especially one that is suitable for use with CCD (Charge c〇upled Device) or 5 CMOSCComplementary Metal 〇xide Semic〇nductor A wide-angle lens for a vehicle-mounted camera, a camera for a mobile terminal, a surveillance camera, or the like, and a photographing device including the photographing lens. [Prior Art] In recent years, the miniaturization of photographic components such as '(10) or (10)(10) and the high-pixel 浔, 1 肖 此 此 , , , , , , , , , , , , , , , , , , , , , , , , , , , , 具备 具备 具备 具备 具备The mounted photographic lens is also required to be smaller and lighter. * In addition, a photographic lens used for a vehicle-mounted camera, a camera for a mobile terminal, a surveillance camera 15 or the like ensures a good field of view over a wide range, and requires not only a wide angle but also high imaging performance in the entire imaging region. In the field of photographic lenses in the above-mentioned fields, an optical system having a small number of lenses is required from the viewpoint of expecting cost reduction. Conventionally, as for the wide-angle photographic lens of the four-piece structure in the above-mentioned field, there are 20 lenses as described in the following patent. [Patent Preamble 1] Japanese Patent Laid-Open Publication No. 2 〇 _ _ 丨 ; ; ; ; ; ; ; ; ; ; ; ; ; 专利 专利 专利 专利 专利 专利 专利 专利 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 M356915 ... and in the patent case 2, the distance from the lens surface on the most object side to the German product from the corner lens is long at a distance of -f, so it cannot be said that the requirement of t is satisfied. In the pre-patent 3 of the patent, I have a wide-angle photographic lens that has been carried out by the electric ia ^ . ±x ^ . Tea 3, although it has seen the miniaturization of the optical axis direction, the image is Φ ^ 彳 - the peripheral part of the image surface The angle of incidence of the principal ray of the concentrated off-axis light incident on the image plane - twice as large, becomes an optical 糸, 'first' with low telecentricity. When the nightmare of the nightmare using the photographic element and the sorrow of the sacred element of Nantian is applied to the optical system with low m-cardiacity, the phenomenon that the peripheral portion of the image becomes dark, that is, the shadow is generated. [New Content] 1 〇 This creation is based on the above problems, and its object is to provide a wide-angle photographic lens that is small, low-cost, and has improved telecentricity and maintains high optical performance, and has the wide-angle photography. A photographic device for a lens. The wide-angle photographic lens of the present invention includes, in order from the object side, a negative first lens that has a convex surface toward the object side and has a meniscus shape, and a negative surface that faces the image side and the w surface is aspherical. a second lens, a positive third lens facing the object side and having at least a face aspherical surface, a light barrier, and a fourth lens having a convex surface facing the image side and at least the i surface being aspherical, the first lens And the composite focal length of the second lens is set to fl 2 , the combined focal length of the third lens and the fourth lens is set to f3 4 'the distance between the light intercept and the optical axis 20 of the object plane of the fourth lens is set to d7, the whole system When the focal length is set to f, the following conditional expressions (1) and (2) are satisfied: "(1); (2). - 〇.4<fl2/f34<-0.2 〇.30<d7/f<0.65 M356915 The above-mentioned "the convex surface is directed toward the object side and the eclipse is y-shaped", and the concave surface is directed toward the image side. "The convex surface faces the object side" and "The convex surface faces the image side" are all near the optical axis. The wide-angle photographic lens of the present invention has the following structure; that is, the second, second, and fourth lenses are aspherical by achieving a low cost by the number of lenses to four pieces of Lj, and by appropriately selecting the structure of each lens. Conditional expression
1010
〇)、（2)’由此，不僅良好地修正諸像差，並實現小型化、 且只現比以往更好的遠心性。 步，在本創作的廣角攝影透鏡中，將第二透鏡的 設為f2，將第三透鏡的焦距設為Π時，較佳地滿足以 Z件式（3)、（4)、（5)、⑹。需要㈣的是，較佳地的方 ^ =下料件式（3)〜⑹巾的㈣—個即可，而且也可以 疋滿足任意組合： (3) ； (4) ； 〇.3<f/f34< 0.5 (6)。 本創作的攝影裝置，其中， 的廇自搖&、$你 匕括，上述記載的本創作 換為雷"a '、角攝衫透鏡所形成的光學像轉 俠马電信唬的攝影元件。 个竹 根據本創作，可提供—種 的透鏡片數，適當設定各透鏡开透:及 最少為4片的較少 ⑴、⑺，不僅實現小型化及Γ成=射力，滿足條件式 -成本化’亚與以往相比遠心 20 M356915 性得以改善，且可確保光學性能的廣角攝影透鏡，以及包 括該廣角攝影透鏡的攝影裝置。 【實施方式】 5 乂下’參知附圖詳細說明本創作的實施方式。 在圖1表示本創作的一實施方式的廣角攝影透鏡工的 透鏡^視圖。在圖！中軸外光線2也表示有最大像高的主光 線萬要D兒明的疋，圖1所示的實施例對應於下述的實施例 1的透鏡結構。而且’在圖3〜圖9表示有本創作的實施方式 10的廣角攝影透鏡的另一實施例的透鏡剖視圖，這些對應於 下述的實施例2〜8的透鏡結構。實施例1〜8的廣角攝影透鏡 的基本透鏡結構相同，所以，在以下本創作的實施方式的 廣角攝影透鏡，以圖！所示的實施例的廣角攝影透鏡丄為例 進行說明。 15 冑角攝影透鏡1從物體側起依次包括：物體側面為凸 形狀的且為彎月形狀的負的第一透鏡匕1、像側面為凹形狀 v面為非球面的負的第二透鏡L2、物體側面為凸形 狀且至少1面為非球面的正的第三透鏡L3、孔徑光搁像 側面為凸形狀且至少！面為非球面的第四透鏡^。 〇 而且在圖卜考慮廣角攝影透鏡1適用於攝影裝置的〇), (2)' Thus, not only the aberrations are well corrected, but also miniaturization is achieved, and only telecentricity is better than ever. In the wide-angle photographic lens of the present invention, when the second lens is set to f2 and the focal length of the third lens is set to Π, it is preferable to satisfy the Z-form (3), (4), (5) (6). What is needed (4) is that the preferred square = (3) ~ (6) towel (four) - one can be, and can also meet any combination: (3); (4); 〇.3 <f /f34< 0.5 (6). The photographic apparatus of this creation, in which the 廇 廇 & amp amp 、 、 、 、 、 、 、 、 、 、 、 、 、 上述 上述 上述 上述 上述 上述 上述 上述 上述 上述 上述 上述 上述 上述 上述 上述 上述 上述 本 本 本 本 本 本 本 本 本. According to the creation, the bamboo can provide the number of lenses, and appropriately set the opening of each lens: and at least 4 (1) and (7), which not only achieves miniaturization and smashing, but also meets the conditional cost. A wide-angle photographic lens with improved telecentricity and improved optical performance, and a photographic device including the wide-angle photographic lens. [Embodiment] 5 The following is a detailed description of the embodiments of the present invention. Fig. 1 shows a lens view of a wide-angle lens unit of an embodiment of the present invention. In the picture! The outer-axis light 2 also indicates that the main light having the largest image height is the same as that of the main light, and the embodiment shown in Fig. 1 corresponds to the lens structure of the first embodiment described below. Further, a lens cross-sectional view of another embodiment of the wide-angle imaging lens of the tenth embodiment of the present invention is shown in Figs. 3 to 9, which correspond to the lens configurations of the following embodiments 2 to 8. Since the basic lens structures of the wide-angle imaging lenses of the first to eighth embodiments are the same, the wide-angle imaging lens of the embodiment of the present invention will be described below! The wide-angle photographic lens 实施 of the illustrated embodiment will be described as an example. The corner photographic lens 1 includes, in order from the object side, a negative first lens 侧面1 having a convex shape and a meniscus shape, and a negative second lens L2 having a concave side and a concave surface. The third lens L3 having a convex shape on the side of the object and having at least one surface aspherical, and the side surface of the aperture light image are convex and at least! The fourth lens is an aspherical surface. 〇 and considering the wide-angle lens 1 for the photographic device in Figure
If況也圖不有配置在包括廣角攝影透鏡^的成像位置心 的像面Sim的攝影元件5。攝影元件5將由廣角攝影透鏡形 成的光學像轉換為電信號，例如由⑽圖像傳感器等而成。 7 M356915 ’透過將配置在最靠物體側的第 體側的負彎月形透鏡，就有利於 在廣角攝影透鏡1中 透鏡L1设為凸面朝向物 廣角化。 攝…：在皁載用相機等嚴格的環境中使用廣角 心透鏡1時’設想配置在最靠物體側 溶劑’但將第—透鏡L1設為凸面朝二= 一月城，則在這些狀況下存在*易殘留垃圾、塵埃、 ::等這些優點。進一步，與設為雙凹形狀時相 10 有r減少像差發生量，且在修正修正畸變 、需要說明的是’在圖w示的實施例中，第—透鏡li 由球面透鏡構成，但本創作的第一透鏡“也可以為球面透 鏡、非球面透鏡的任-個。但，如下述，配置在最靠物體 側的第-透鏡的材質較佳地使用玻璃而不是樹脂，因此， 15 f將第一透鏡Li設為球面透鏡，比設為非球面透鏡時相比 就更能以低成本製作。 就第一透鏡L2、第三透鏡L3、第四透鏡“而言，因為 採用了没計自由度高的非球面透鏡，所以在修正修正像差 方面有利，以較少的透鏡片數及短的全長就容易得到良 20 的解像性。 第二透鏡L2、第三透鏡L3、第四透鏡L4分別也可以為 各自僅一面為非球面，或者兩面均可以為非球面。若將兩 面设為非球面，則設計自由度增加，在修正修正像差方面 就更加有利。 M356915 ’ 在本實施方式的廣角攝影透鏡中，將第一透鏡L1及第 二透鏡L2的合成焦距設為fl2，第三透鏡L3及第四透鏡L4 的合成焦距设為f 3 4 ’孔徑光搁S t和第四透鏡L 4的物體側面 的光軸上的距離設為d7 ’整個系統的焦距設為f時，較佳地 5滿足以下條件式（1)、（2): -〇.4<fl2/f34<-0.2 ......(1); 〇.30<d7/f<0.65 ......(2) 〇 條件式（1)是關於物體側的2個透鏡的合成光焦度和像 籲 側的2個透鏡的合成光焦度之比。若超過條件式（丨）的上 10限，則難以良好地修正修正像面彎曲。若低於條件式（丄） 的下限，則為了得到需要的視角，必須將第一透鏡L1及第 一透鏡L2以與第三透鏡L3分離的方式進行配置，從而透鏡 全長變長’光學系統大型化。 條件式（2)疋關於孔徑光攔St和第四透鏡的距離對 15整個系統焦距的比。若超過條件式（2)的上限’則孔徑光欄 St和第四透鏡L4的距離變長，透鏡全長變長，光學系統大 鲁 里化若低於條件式（2)的下限，則可縮短透鏡全長，第四 透鏡的有效徑也變小，但轴外光的主光線對像面的人㈣ (主光線和光軸所成的角）增大，遠讀惡化。若遠心性惡 20化貝J在使用CCD或CMOS等受光元件的攝影裝置就導致 周邊光量的減少，且產生陰影。 進一步，本創作的實施方式的廣角攝影透鏡，較佳地 滿足下述條件式㈤），此時，可進—步實現光學系統的小 型化和遠心性的提高。 9 M356915 〇.38<d7/f<0.60 ......(2-1)。 而且，在本實施方式的廣角攝影透鏡，當將第二透鏡 L2的焦距設為f2時’較佳地滿足條件式（3): -1.4<f2/f<-〇.5 ......(3)。 條件式（3)是關於第二透鏡^光焦度對整個系統光焦 度之比。若超過條件式（3)的上限，則第二透鏡咖負光焦 度變強，與光軸附近的厚度相比周邊部的厚度變厚，而且， 10 在第二透鏡L2的像側面的周邊部，面切向線和光軸所成的 角變小’所以製造性惡化，且成本提高。若低於條件式⑺ 的下限’則第二透鏡L2的負光焦度不足，難以得到大視角。 而且，在本實施方式的廣角攝影透鏡中，當將第三透 鏡L3的焦距設為f3時，較佳地滿足以下條件式（4) · 1.0<f3/f<1.8 ......(4)。 條件式（4)是關於第三透鏡以光焦度對整個系統光焦 15度之比。在本廣角攝影透鏡中，結構為由正透鏡的第三透 鏡L3消除由負透鏡的第一透鏡L1及第二透鏡生的倍 率色像差。若超過條件式⑷的上限，貝,！此第三透鏡⑽消: 除倍率色像差的作用變弱，倍率色像差變大。若低於條件 式（4)的下限，則第三透鏡L3的正光焦度變強，難以良好地 2〇 修正修正像面彎曲。 而且’在本實施方式的廣角攝影透鏡中，較佳地滿足 以下條件式（5): -〇.9<fl2/f<-0.5 ......(5)。 10 M356915 條件式（5)是關於物體側2個負透鏡合成光焦度對整個 系統光焦度之比。若超過條件式（5)的上限，則與第一透鏡 L1、第二透鏡L2的負光焦度吻合的強的正光焦度的第三透 鏡L3就變為必須的，且難以良好地修正像面彎曲。若低於 條件式（5)的下限，則為了得到需要的視角，必須將第_透 鏡L1或第二透鏡L2以與第三透鏡L3分離的方式進行配 置’從而透鏡全長變長且光學系統大型化。 而且，在本實施方式的廣角攝影透鏡中，較佳地滿足 以下條件式（6): 10 15 〇.3<f/f34< 0.5 ......(6)。 條件式（6)疋關於整個系統光焦度和像側2個透鏡合成 光焦度之比。若超過條件式⑹的上限，則在良好地保持寒 形像差等像差的狀態下難以㈣需要的後焦距。若低於條 件式（6)的下限，則難以良好地修正像面彎曲。 而且，在本實施方式的廣角攝影透鏡中，為了癌保比 以往更好的遠心性，如圖i所示，將最大像高設為γ，將從 最靠物體側的透鏡面到像面的光轴上的距離設紅，將最 :像二的主光線對像面的入射角(該主光線和光軸所成的 角）6又為6>時，較佳地滿足以下條件式（乃、（8): Y/L<0.25 ......(7)； θ$23。……（8)。 需要說明的是，本創作的廣角透鏡中，為了系 轴方向的小型化，較佳地滿足下述條件式㈣。並且，為 20 M356915 了在確保良好的遠心性的同時實現系統的小型化，根據所 述條件式（7)及下述條件式（7-1)，較佳地滿足條件式（7_2): Y/L > 0.21 ......(7-1); 0.21 < Y/L< 0.25 〇 而且，在本廣角攝影透鏡中，如下述的實施例所示， 較佳地將第一透鏡L1的材質的阿貝數設為4〇以上，將第二 透鏡L2及第四透鏡L4的材質的阿貝數設為5〇以上，將第三 透鏡L3的材質的阿貝數設為4〇以下。此時，可良好地修正 倍率色像差，可得到良好的解像性。 10 15 20 需要說明的是，例如，在車載用相機等嚴格的環境中The condition also shows that the photographic element 5 is disposed on the image surface Sim including the imaging position of the wide-angle photographic lens. The photographic element 5 converts an optical image formed by a wide-angle photographic lens into an electrical signal, for example, by (10) an image sensor or the like. 7 M356915' By the negative meniscus lens disposed on the body side on the most object side, it is advantageous in the wide-angle lens 1 that the lens L1 is convexly oriented toward the object. In the case of using the wide-angle lens 1 in a strict environment such as a soap-loaded camera, it is assumed that the solvent is disposed on the most object side, but the first lens L1 is convexly facing the second = one month. There are * easy to residual garbage, dust, :: and so on. Further, in the case of the double concave shape phase 10, r is used to reduce the amount of aberration generation, and correction distortion is corrected. It is to be noted that in the embodiment shown in the figure, the first lens li is composed of a spherical lens, but The created first lens "may be any one of a spherical lens and an aspherical lens. However, as described below, the material of the first lens disposed on the most object side is preferably glass instead of resin, and therefore, 15 f The first lens Li is a spherical lens, and can be produced at a lower cost than when it is an aspherical lens. As for the first lens L2, the third lens L3, and the fourth lens, Since the aspherical lens having a high degree of freedom is advantageous in correcting the correction aberration, it is easy to obtain the resolution of the good 20 with a small number of lenses and a short total length. Each of the second lens L2, the third lens L3, and the fourth lens L4 may be aspherical on only one side, or both surfaces may be aspherical. If the two surfaces are aspherical, the degree of freedom in design increases, which is more advantageous in correcting the correction aberration. M356915 ' In the wide-angle imaging lens of the present embodiment, the combined focal length of the first lens L1 and the second lens L2 is set to fl2, and the combined focal length of the third lens L3 and the fourth lens L4 is set to f 3 4 ' aperture stop The distance on the optical axis of the object side surface of the fourth lens L 4 is set to d7. When the focal length of the entire system is f, preferably 5 satisfies the following conditional expressions (1), (2): -〇.4<;fl2/f34<-0.2......(1);〇.30<d7/f<0.65 ......(2) 〇Conditional expression (1) is about two lenses on the object side The ratio of the combined power and the combined power of the two lenses on the side of the call. If the upper limit of the conditional expression (丨) is exceeded, it is difficult to correct the corrected field curvature. When the lower limit of the conditional expression (丄) is exceeded, the first lens L1 and the first lens L2 must be disposed apart from the third lens L3 in order to obtain a desired angle of view, so that the total length of the lens becomes long. Chemical. The conditional expression (2) is about the ratio of the distance between the aperture stop Bar and the fourth lens to the focal length of the entire system. When the upper limit of the conditional expression (2) is exceeded, the distance between the aperture stop St and the fourth lens L4 becomes longer, the total length of the lens becomes longer, and if the optical system is less than the lower limit of the conditional expression (2), the optical system can be shortened. The effective length of the fourth lens is also reduced over the entire length of the lens, but the principal ray of the off-axis light increases in the image plane (4) (the angle formed by the chief ray and the optical axis), and the far-reading deteriorates. If the telecentric device is used in a photographing device using a light-receiving element such as a CCD or a CMOS, the amount of peripheral light is reduced and a shadow is generated. Further, the wide-angle lens of the embodiment of the present invention preferably satisfies the following conditional expression (5)), and in this case, the miniaturization of the optical system and the improvement of the telecentricity can be further achieved. 9 M356915 〇.38<d7/f<0.60 ......(2-1). Further, in the wide-angle lens of the present embodiment, when the focal length of the second lens L2 is f2, it is preferable to satisfy the conditional expression (3): -1.4 <f2/f<-〇.5 .... .. (3). The conditional expression (3) is about the ratio of the second lens power to the overall system power. When the upper limit of the conditional expression (3) is exceeded, the second lens has a strong refractive power, and the thickness of the peripheral portion is thicker than the thickness of the vicinity of the optical axis, and 10 is around the image side surface of the second lens L2. In the portion, the angle formed by the face tangential line and the optical axis becomes small, so the manufacturability is deteriorated and the cost is increased. If the lower limit of the conditional expression (7) is exceeded, the negative refractive power of the second lens L2 is insufficient, and it is difficult to obtain a large viewing angle. Further, in the wide-angle lens of the present embodiment, when the focal length of the third lens L3 is f3, it is preferable to satisfy the following conditional expression (4): 1.0 < f3/f < 1.8 ...... (4). The conditional expression (4) is about the ratio of the power of the third lens to the power of the entire system by 15 degrees. In the wide-angle photographic lens, the structure is such that the third lens L3 of the positive lens eliminates the chromatic aberration of magnification produced by the first lens L1 and the second lens of the negative lens. If the upper limit of conditional expression (4) is exceeded, Bay,! This third lens (10) is eliminated: the effect of the chromatic aberration of magnification becomes weak, and the chromatic aberration of magnification becomes large. When the lower limit of the conditional expression (4) is exceeded, the positive refractive power of the third lens L3 becomes strong, and it is difficult to correct the corrected field curvature. Further, in the wide-angle lens of the present embodiment, the following conditional expression (5) is preferably satisfied: - 〇.9 < fl2 / f < -0.5 (5). 10 M356915 Conditional expression (5) is about the ratio of the combined power of two negative lenses on the object side to the power of the whole system. When the upper limit of the conditional expression (5) is exceeded, the third lens L3 having a strong positive power that matches the negative refractive power of the first lens L1 and the second lens L2 becomes necessary, and it is difficult to correct the image well. The surface is curved. When the lower limit of the conditional expression (5) is exceeded, in order to obtain a required viewing angle, it is necessary to arrange the first lens L1 or the second lens L2 so as to be separated from the third lens L3. Thus, the total length of the lens is long and the optical system is large. Chemical. Further, in the wide-angle lens of the present embodiment, the following conditional expression (6) is preferably satisfied: 10 15 〇.3 < f/f34 < 0.5 (6). Conditional formula (6) 疋 relates to the ratio of the total system power and the image side two lens combined power. When the upper limit of the conditional expression (6) is exceeded, it is difficult to (4) the required back focus in a state in which aberrations such as cold aberration are favorably maintained. If it is lower than the lower limit of the conditional expression (6), it is difficult to correct the field curvature well. Further, in the wide-angle lens of the present embodiment, in order to achieve better telecentricity than the conventional cancer, as shown in FIG. 1, the maximum image height is set to γ, and the lens surface from the most object side to the image surface is used. The distance on the optical axis is set to red, and the angle of incidence of the principal ray of the image plane (the angle formed by the principal ray and the optical axis) 6 is 6>, and preferably satisfies the following conditional expression. (8): Y/L < 0.25 (7); θ$23 (8). It should be noted that in the wide-angle lens of the present invention, it is preferable to miniaturize the direction of the bobbin. The conditional expression (4) below is satisfied, and the system is miniaturized while ensuring good telecentricity for 20 M356915, and preferably according to the conditional expression (7) and the following conditional expression (7-1). The conditional expression (7_2) is satisfied: Y/L > 0.21 (7-1); 0.21 < Y/L < 0.25 〇 Further, in the wide-angle imaging lens, as shown in the following embodiment Preferably, the Abbe number of the material of the first lens L1 is 4 Å or more, and the Abbe number of the material of the second lens L2 and the fourth lens L4 is 5 Å or more, and the material of the third lens L3 is used. The Abbe number is set to 4 〇 or less. In this case, the chromatic aberration of magnification can be corrected satisfactorily, and good resolution can be obtained. 10 15 20 It is to be noted, for example, in a strict environment such as a camera for a vehicle.
使用本廣角攝影透鏡時，配置在最靠物體側的第一透鏡U 較佳地使用耐抗由風雨或砂土而導致的表面裂化、由直射 曰光的度變化，進一步耐抗油脂、洗滌劑等化學藥品的 材^ ’即使用对水性、耐氣候性、耐酸性、耐藥品性高的 材貝。而且，作為配置在最靠物體側的第一透鏡U的材 貝歧佳地使用堅固、難破碎的材質。根據以上的事實， ;第透鏡L1的材質，具體而言，較佳地使用玻璃，或 一也了使用透明的陶瓷。陶瓷與常用的玻璃相比強度較 咼，且具有耐熱性高的性質。 較佳::CL2、第三透紅3、第四透鏡L4的材質， 一 4’此時，精密度良好地製作非球面形狀的 同％可貧現輕量化及低成本化。 根據塑料材質 率及形狀尺寸變化 ，若吸水性高則隨著水分的出入而折射 1所以，存在光學性能上發生壞影響的 12 M356915 月，f生目此，在第二透鏡L2和第四透鏡L4使用聚烯烴類 望料（吸水率G.G1%) ’在第三透鏡使用聚碳酸_類塑吸 水率〇·2%)和吸水性極其小的材質，則可將吸水所引起的性 能惡化抑制為最小。 5 在^角攝影透财，為了減少重影光，也可在各透 二:：止反射膜。此時’在圖1所例示的廣角攝影透鏡 在第一透鏡以的像側面、第二透鏡L2的像側面、第 i所：二：體側面二應該注意周邊部各面的切向線和光 、，μ。根據廷種結構，存在周邊部的防止反射膜 1的厚度比透鏡中央部變薄，曰甚々eh方、 、 1 專且產生反射率分佈的憂慮。因 Μ 述3個面之中的1面以上的面形成將在中央附 、的反射率成為最小的波長設為6〇〇_以上__ ==膜，可在有效徑全體平均地減少反射率，且可減 15 20 需要說明的是，若在巾止财4&=& ，h 6〇〇 &一 、、ι的反射率為最小的波長 r 周邊部的反射率為最小的波長變得過 ^側的反射率變高’因此，容易發生淡紅色的重 二在中央附近的反射率為最小的波長比_ : 、。卩的反射率為最小的波長變得過長，且短波 變高，所以’像的顏色帶紅色的同時，容易 發生帶藍色的重影。 "冰：二在本廣角攝影透鏡中，透過各透鏡之間的有效 么卜的先束成為雜散光而到達像面且成為重影，這樣 慮存在，因此，根據需要_ # 。，、反 很嫘而要|χ佳地設置對此雜散光進行遮光 13 M356915 又。此遮光手段，例如，在透鏡像側的有效徑外 加不透明的塗料，或設置不透明的板材也可。或 作為在成為雜散光的光束的光路上設置不透明的板材 作為遮光手段。 5 接著，說明本創作的戽& 例。 T的廣角攝影透鏡的具體數值實施 首先’將實施例1作為似工 角摄旦彡、#拉 馬例子進行說明。將實施例1的廣 角攝〜透鏡的透鏡數據 、表1，將非球面數據示於表2。 【表1】 實施例1透鏡數據When the wide-angle photographic lens is used, the first lens U disposed on the most object side is preferably resistant to surface cracking caused by wind and rain or sand, and changes in the degree of direct glazing, and further resistant to grease and detergent. The chemical materials are used for materials that are water-based, weather-resistant, acid-resistant, and chemical-resistant. Further, as a material of the first lens U disposed on the most object side, a strong and difficult-to-crush material is used. According to the above facts, the material of the first lens L1, specifically, glass is preferably used, or a transparent ceramic is used. Ceramics are stronger than conventional glass and have high heat resistance. Preferably, the materials of the CL2, the third red-transparent 3, and the fourth lens L4 are at the same time, and the same degree of precision in the aspherical shape can be reduced in weight and cost. According to the plastic material rate and the shape and size change, if the water absorption is high, the light is refracted by the ingress and egress of water, so there is a bad influence on the optical properties of 12 M356915 months, in the second lens L2 and the fourth lens. L4 uses a polyolefin-like material (water absorption G.G1%) 'Polycarbonate _2% water absorption in the third lens 和·2%) and a material with extremely low water absorption, which can deteriorate the performance caused by water absorption. The suppression is minimal. 5 In the ^ corner photography, in order to reduce the ghost light, you can also in each of the two:: anti-reflection film. At this time, the wide-angle imaging lens illustrated in FIG. 1 should pay attention to the tangential line and light of each surface of the peripheral portion on the image side surface of the first lens, the image side surface of the second lens L2, and the i-th: two-body side surface. , μ. According to the structure of the present invention, the thickness of the anti-reflection film 1 in the peripheral portion is thinner than the central portion of the lens, and there is a concern that the reflectance distribution is generated in particular. Since the surface having one or more of the three surfaces is formed so that the wavelength at which the reflectance at the center is minimized is 6 〇〇 or more __ == film, the reflectance can be reduced evenly over the effective diameter. And can be reduced by 15 20. It should be noted that if the wavelength of the peripheral portion of the wavelength r is the smallest, the wavelength of the wavelength is the smallest. The reflectance at the side of the ^ becomes high. Therefore, the wavelength ratio of the light red of the red light near the center is the smallest _ : . The wavelength at which the reflectance of 卩 is the smallest becomes too long, and the short wave becomes high, so that the color of the image is reddish, and a blueish ghost is likely to occur. "Ice: In this wide-angle photographic lens, the first beam that passes through the effective lens between the lenses becomes stray light and reaches the image surface and becomes a ghost image. Therefore, there is a need to, as a result, _#. ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, The light shielding means may be, for example, an opaque paint applied to the effective diameter of the image side of the lens or an opaque plate. Or, as an optical path, an opaque plate is provided on the optical path of the light beam that becomes stray light. 5 Next, an example of the creation of this creation will be described. Specific numerical value calculation of the wide-angle photographic lens of T First, the first embodiment will be described as an example of a working angle lens and a horse pulling method. The lens data of the wide-angle lens of the first embodiment and Table 1 and the aspherical data are shown in Table 2. [Table 1] Example 1 lens data
【表2】 實施例1非球面數據[Table 2] Example 1 aspherical data
S5 S6 14 M356915S5 S6 14 M356915
K 1.33678E+02 -1.15450E-01 -1.00938E+01 -4.93971E+02 B3 1.37359E-02 -5.13667E-02 3.93604E-01 -9.59802E-02 B4 3.45513E-04 5.63355E-02 -9.17490E-02 1.41061E-01 B5 -2.29325E-04 2.55147E-02 -2.83857E-02 5.72924E-02 B6 -9.55519E-05 2.32442E-03 -3.10235E-03 -8.61992E-02 B7 -6.57350E-05 -4.94374E-03 6.45875E-03 -8.89589E-02 B8 -2.33032E-05 -4.98468E-03 5.74020E-03 -1.84305E-02 B9 1.93557E-06 -1.03111E-03 7.98643E-04 5.47119E-02 B10 1.17858E-06 -6.50858E-04 -9.76599E-04 1.24253E-01 S8 S9 K 9.74492E-01 7.15877E-01 B3 -9.00328E-02 1.08673E-02 B4 2.15147E-02 -9.32111E-04 B5 1.71475E-03 3.30047E-03 B6 -1.70730E-03 8.56202E-03 B7 1.02276E-03 1.07456E-03 B8 -2.13820E-03 -7.68634E-04 B9 -1.79177E-04 -2.06598E-04 B10 -1.92305E-04 -1.69940E-04 在表1的透鏡數據中，Si表示以最靠物體側的結構元件 的面為第一個而隨著朝向像側依次增加的第i個（i=l、2、 3......)的面號碼，ri表示第i個面的曲率半徑，di表示第i個 5 面和第i+Ι個面的光軸Z上的面間隔，Nej表示以最靠物體側 的光學要素為第一個而隨著朝向像側依次增加的第j個 (j = l、2、3、......）光學要素的對e線（波長546.07nm)的折射 15 M356915 率，vdj表示第j個光學要素的對丄線（波長587 6n叫的阿貝 數。在表1中，曲率半徑及面間隔的單位為mm，曲率半徑 將凸面朝物體側的情況設為正，而將凸面朝像側的情況= 為負。需要說明的是，在表丨的透鏡數據也包括表示有孔徑 5光欄St，在孔徑光攔St的曲率半徑攔記載為（孔徑光攔）。 而且，在表1的透鏡數據中，非球面在面號碼附有1符 號，作為非球面的曲率半徑表示有近軸曲率半徑的數值。 表2的非球面數據表示關於這些非球面的非球面係數 • ®係、數為在以下式（A)表示的非球面式的各係數κ : 10 Bm(m=3、4、5)的值。K 1.33678E+02 -1.15450E-01 -1.00938E+01 -4.93971E+02 B3 1.37359E-02 -5.13667E-02 3.93604E-01 -9.59802E-02 B4 3.45513E-04 5.63355E-02 -9.17490 E-02 1.41061E-01 B5 -2.29325E-04 2.55147E-02 -2.83857E-02 5.72924E-02 B6 -9.55519E-05 2.32442E-03 -3.10235E-03 -8.61992E-02 B7 -6.57350E -05 -4.94374E-03 6.45875E-03 -8.89589E-02 B8 -2.33032E-05 -4.98468E-03 5.74020E-03 -1.84305E-02 B9 1.93557E-06 -1.03111E-03 7.98643E-04 5.47119E-02 B10 1.17858E-06 -6.50858E-04 -9.76599E-04 1.24253E-01 S8 S9 K 9.74492E-01 7.15877E-01 B3 -9.00328E-02 1.08673E-02 B4 2.15147E-02 - 9.32111E-04 B5 1.71475E-03 3.30047E-03 B6 -1.70730E-03 8.56202E-03 B7 1.02276E-03 1.07456E-03 B8 -2.13820E-03 -7.68634E-04 B9 -1.79177E-04 - 2.06598E-04 B10 -1.92305E-04 -1.69940E-04 In the lens data of Table 1, Si indicates that the surface of the structural element on the most object side is the first and the ith is sequentially increased toward the image side. The face number of (i=l, 2, 3...), ri represents the radius of curvature of the i-th face, and di represents the ith 5th face The interplanar spacing on the optical axis Z of the i-th surface, Nej represents the jth (j = 1, 2, 3, with the optical element on the most object side as the first and sequentially increases toward the image side) ...) Refraction of the optical element to the e-line (wavelength 546.07 nm) 15 M356915 rate, vdj represents the confrontation line of the j-th optical element (the Abbe number called the wavelength 587 6n). In Table 1, the unit of the radius of curvature and the surface interval is mm, and the radius of curvature is positive for the convex surface toward the object side and negative for the convex surface toward the image side. It should be noted that the lens data in the representation also includes the aperture 5, and the radius of curvature of the aperture stop, St, is described as (aperture stop). Further, in the lens data of Table 1, the aspherical surface has a symbol on the surface number, and the radius of curvature of the aspherical surface indicates the value of the paraxial radius of curvature. The aspherical surface data of Table 2 indicates the aspherical coefficient of the aspherical surface, and the number is a value of each coefficient κ of the aspherical formula represented by the following formula (A): 10 Bm (m = 3, 4, 5). .
Zd=C · h2/{ 1+( 1-K · C2 · h2)1/2}+ Σ Bm · hm ......(A)； 式中， zd:非球面的深度（從高度11的非球面上的點下垂於與 非球面頂點接觸的光軸垂直的平面的垂線長度）； 15 h :高度（從光軸到透鏡面的距離）； C:近軸曲率半徑的逆數； 16 1 K、Bm :非球面係數（m=3、4、5)。 將實施例1的廣角攝影透鏡的透鏡結構圖示於圖2。需 要說明的是，圖2的孔徑光攔St不是表示形狀或大小，而: 20 示其在光軸Z上的位置。 、 在圖2中’也包括表示有配置在廣角攝影透鏡和像面 Sun之間的平行平板狀光學部件ppQ在攝影裝置適用廣角 攝影透鏡時，按照裝载透鏡的相機側的結構，較佳地配置 玻璃罩、低通濾'波器或紅外線截止濾光片等。例如，廣角 M356915 攝影透鏡使用於車載相機，作為夜間視覺補助用暗視_ 而使用時，也可在透鏡系統和攝影元件之間插入截止紫外 光至藍色光的濾光片。光學部件pp是這些玻璃罩或濾光片 等的設想的部件，在此，作為一例使用折射率為⑶，厚 5 度為1.05mm的部件。 而且，在圖2所示的例中，在廣角攝影透鏡和像面sj：m ，間配置有截止低通濾波器或特定的波段的各種渡光片 等’但替代此’也可在各透鏡之間配置這些各種濾光片。 或者，也可在任意透鏡的透鏡面形成具有與各種渡光片相 10 同的作用的塗層。Zd=C · h2/{ 1+( 1-K · C2 · h2)1/2}+ Σ Bm · hm ......(A); where zd: the depth of the aspheric surface (from height 11 The length of the perpendicular on the aspheric surface sags from the plane perpendicular to the optical axis of the aspherical vertex; 15 h : height (distance from the optical axis to the lens surface); C: inverse of the paraxial radius of curvature; 1 K, Bm : aspherical coefficient (m = 3, 4, 5). The lens structure of the wide-angle photographic lens of Example 1 is shown in Fig. 2 . It should be noted that the aperture stop St of Fig. 2 does not indicate shape or size, and: 20 shows its position on the optical axis Z. In FIG. 2, 'the parallel plate-shaped optical member ppQ disposed between the wide-angle photographic lens and the image plane Sun is also included. When the wide-angle photographic lens is applied to the photographing device, the camera-side structure of the loading lens is preferably used. Configure glass cover, low-pass filter or infrared cut filter. For example, the wide-angle M356915 photographic lens is used in an in-vehicle camera, and when used as a visual aid for nighttime vision, a filter that cuts off ultraviolet light to blue light can be inserted between the lens system and the photographic element. The optical member pp is an element considered as a glass cover or a filter. Here, as an example, a member having a refractive index of (3) and a thickness of 5 degrees of 1.05 mm is used. Further, in the example shown in FIG. 2, between the wide-angle imaging lens and the image plane sj:m, various low-pass filters or various light-emitting plates of a specific wavelength band are disposed, but the same can be used for each lens. These various filters are configured between. Alternatively, a coating layer having the same function as that of the various light-passing sheets may be formed on the lens surface of any lens.
—以上，對實施例1所述的各表的記號的含義對下述的 實施例也同樣’使用的光學部件、孔徑光欄的圖示方法也 相同。在圖3〜圖9分別表示實施例2〜8的廣角攝影透鏡的透 鏡結構圖，在表3〜表16分別表示透鏡數據、非球面數據。 而要說明的疋，在各實施例中，透鏡數據表的Η、士(丨=1、 2、3 ·._·，.）對應於透鏡結構圖的符號ri、di。 【表3】 實施例2透鏡數據- The meanings of the symbols of the respective tables described in the first embodiment are the same as those of the following embodiments. The optical member used and the method for illustrating the aperture diaphragm are also the same. The lens configuration diagrams of the wide-angle imaging lenses of the second to eighth embodiments are shown in Figs. 3 to 9, and the lens data and the aspherical surface data are shown in Tables 3 to 16, respectively. In addition, in each of the embodiments, the Η, 士 (丨=1, 2, 3 ·._·, . . . ) of the lens data table correspond to the symbols ri, di of the lens structure diagram. [Table 3] Example 2 lens data
Si 1 ri di Nej vdj 1 0 ' 13.6091 1.0000 1.77621 49.6 L η 3.8000 _ — -— 1.4693 J A * 43.8970 1.0000 1.53340 55.5 η Γ 9k 0.6926 0.6429 J ^ 1.0763 2.1200 1.58820 30.3 17Si 1 ri di Nej vdj 1 0 ' 13.6091 1.0000 1.77621 49.6 L η 3.8000 _ — -— 1.4693 J A * 43.8970 1.0000 1.53340 55.5 η Γ 9k 0.6926 0.6429 J ^ 1.0763 2.1200 1.58820 30.3 17
M356915 B9 3.53407E-05 -1.52272E-04 B10 -2.06521E-05 -1.39677E-04 【表5】 實施例3透鏡數據M356915 B9 3.53407E-05 -1.52272E-04 B10 -2.06521E-05 -1.39677E-04 [Table 5] Example 3 Lens Data
Si ri di Nej vdj 1 13.2131 1.0000 1.77621 49.6 2 3.8000 2.2435 3 * 42.5015 1.0000 1.53340 55.5 4 * 0.7152 0.6429 5* 1.0898 2.1200 1.58820 30.3 6* -15.3286 0.1500 7 00 (孔徑光攔） 0.6250 8* 2.7110 2.0001 1.53340 55.5 9* -2.0905 5【表6】 實施例3非球面數據 S3 S4 S5 S6 K 7.10419Ε+01 -1.44775Ε-01 -9.29762E+00 -4.38066E+03 Β3 1.44044Ε-02 -6.28844Ε-02 3.79698E-01 -6.29043E-02 Β4 6.38701Ε-04 4.69409Ε-02 -8.97635E-02 1.10184E-01 Β5 -1.31899Ε-04 2.08429Ε-02 -2.37682E-02 3.2091 IE-02 Β6 -7.05461Ε-05 1.40084Ε-03 -8.14923E-04 -6.83070E-02 Β7 -6.07589Ε-05 -4.39686Ε-03 4.65015E-03 -5.91175E-02 Β8 -2.12373Ε-05 -4.14236Ε-03 4.23256E-03 -3.69003E-03 19 M356915 B9 1.87413E-06 -3.83682E-04 4.05109E-04 4.69606E-02 B10 8.29038E-07 -2.16789E-04 -3.82616E-04 1.11410E-01 S8 S9 K 1.14227E+00 7.30897E-01 B3 -8.68498E-02 2.29020E-02 B4 2.33593E-02 -3.80277E-03 B5 2.40335E-03 2.09607E-03 B6 -2.23100E-03 7.97968E-03 B7 4.81750E-04 9.40999E-04 B8 -2.03667E-03 -7.44823E-04 B9 -2.03645E-05 -1.57433E-04 B10 -1.97010E-05 -1.41141E-04Si ri di Nej vdj 1 13.2131 1.0000 1.77621 49.6 2 3.8000 2.2435 3 * 42.5015 1.0000 1.53340 55.5 4 * 0.7152 0.6429 5* 1.0898 2.1200 1.58820 30.3 6* -15.3286 0.1500 7 00 (Aperture stop) 0.6250 8* 2.7110 2.0001 1.53340 55.5 9* -2.0905 5 [Table 6] Example 3 Aspherical data S3 S4 S5 S6 K 7.10419Ε+01 -1.44775Ε-01 -9.29762E+00 -4.38066E+03 Β3 1.44044Ε-02 -6.28844Ε-02 3.79698E- 01 -6.29043E-02 Β4 6.38701Ε-04 4.69409Ε-02 -8.97635E-02 1.10184E-01 Β5 -1.31899Ε-04 2.08429Ε-02 -2.37682E-02 3.2091 IE-02 Β6 -7.05461Ε-05 1.40084 Ε-03 -8.14923E-04 -6.83070E-02 Β7 -6.07589Ε-05 -4.39686Ε-03 4.65015E-03 -5.91175E-02 Β8 -2.12373Ε-05 -4.14236Ε-03 4.23256E-03 -3.69003 E-03 19 M356915 B9 1.87413E-06 -3.83682E-04 4.05109E-04 4.69606E-02 B10 8.29038E-07 -2.16789E-04 -3.82616E-04 1.11410E-01 S8 S9 K 1.14227E+00 7.30897 E-01 B3 -8.68498E-02 2.29020E-02 B4 2.33593E-02 -3.80277E-03 B5 2.40335E-03 2.09607E-03 B6 -2.23100E-03 7.97968E-03 B7 4.81750E-04 9.40999E- 04 B8 -2.03667E-03 -7.44823E-04 B9 -2.03645E-05 -1.57433E-04 B10 -1.97010E-05 -1.41141E-04
【表7】 實施例4透鏡數據[Table 7] Example 4 lens data
Si ri di Nej vdj 1 21.2145 1.0000 1.77621 49.6 2 3.8000 0.9131 3* 10.5341 1.0000 1.53340 55.5 4 * 0.6190 0.6429 5* 1.0285 2.1200 1.58820 30.3 6* -15.0248 0.1499 7 00 (孔徑光攔） 0.5388 8* 2.4806 2.0027 1.53340 55.5 9 * -2.0054 5【表8】 20 M356915Si ri di Nej vdj 1 21.2145 1.0000 1.77621 49.6 2 3.8000 0.9131 3* 10.5341 1.0000 1.53340 55.5 4 * 0.6190 0.6429 5* 1.0285 2.1200 1.58820 30.3 6* -15.0248 0.1499 7 00 (Aperture stop) 0.5388 8* 2.4806 2.0027 1.53340 55.5 9 * -2.0054 5[Table 8] 20 M356915
實施例4非球面數據 S3 S4 S5 S6 K -9.96120E+00 -9.76845E-02 -7.72090E+00 -1.47348E+03 B3 1.78144E-02 -9.25750E-02 3.65029E-01 -4.74466E-02 B4 1.06450E-03 4.35475E-02 -9.55634E-02 4.94714E-02 B5 6.28447E-05 2.34089E-02 -2.02492E-02 2.31217E-02 B6 2.69355E-05 2.70601E-03 -7.70554E-04 -2.48461E-02 B7 -1.70592E-05 -3.56382E-03 3.10203E-03 -1.23292E-02 B8 -1.64852E-05 -3.77457E-03 2.95913E-03 5.87332E-03 B9 -6.05588E-07 -2.74603E-04 8.82081E-05 6.96674E-04 B10 -6.74516E-07 -2.08895E-04 -2.84297E-05 1.35609E-02 S8 S9 K 1.46214E+00 8.42298E-01 B3 -1.13649E-01 -9.43098E-03 B4 2.13489E-02 1.55619E-03 B5 6.02493E-03 3.64041E-03 B6 -9.95613E-04 8.07536E-03 B7 -8.85695E-05 9.89448E-04 B8 -2.65253E-03 -6.76454E-04 B9 4.09795E-05 -6.06902E-05 B10 6.79199E-05 -5.32726E-05 【表9】 實施例5透鏡數據Example 4 Aspherical Data S3 S4 S5 S6 K -9.96120E+00 -9.76845E-02 -7.72090E+00 -1.47348E+03 B3 1.78144E-02 -9.25750E-02 3.65029E-01 -4.74466E-02 B4 1.06450E-03 4.35475E-02 -9.55634E-02 4.94714E-02 B5 6.28447E-05 2.34089E-02 -2.02492E-02 2.31217E-02 B6 2.69355E-05 2.70601E-03 -7.70554E-04 -2.48461E-02 B7 -1.70592E-05 -3.56382E-03 3.10203E-03 -1.23292E-02 B8 -1.64852E-05 -3.77457E-03 2.95913E-03 5.87332E-03 B9 -6.05588E-07 -2.74603E-04 8.82081E-05 6.96674E-04 B10 -6.74516E-07 -2.08895E-04 -2.84297E-05 1.35609E-02 S8 S9 K 1.46214E+00 8.42298E-01 B3 -1.13649E-01 -9.43098E-03 B4 2.13489E-02 1.55619E-03 B5 6.02493E-03 3.64041E-03 B6 -9.95613E-04 8.07536E-03 B7 -8.85695E-05 9.89448E-04 B8 -2.65253E-03 - 6.76454E-04 B9 4.09795E-05 -6.06902E-05 B10 6.79199E-05 -5.32726E-05 [Table 9] Example 5 Lens Data
Si ri di Nej vdj 1 18.8173 1.0000 1.77621 49.6 21Si ri di Nej vdj 1 18.8173 1.0000 1.77621 49.6 21
M356915 2 4.1786 0.8588 3* 25.5508 1.0000 1.53340 55.5 4* 0.6565 0.6429 5* 1.1038 2.1200 1.58820 30.3 6* -10.1780 0.1462 7 00 (孔徑光欄） 0.6344 8* 2.3676 2.0013 1.53340 55.5 9* -1.9999 【表10】 實施例5非球面數據 S3 S4 S5 S6 K -146.2011675 -6.34423E-02 -8.61546E+00 -1.2885 1E+03 B3 1.49460E-02 -7.86927E-02 3.44450E-01 -5.78861E-02 B4 5.07517E-04 3.80935E-02 -8.90158E-02 2.55526E-02 B5 -1.32274E-04 1.43775E-02 -1.62855E-02 1.48808E-02 B6 -1.58923E-05 -7.38157E-04 -2.52188E-03 -9.31242E-03 B7 -1.67562E-05 -4.11171E-03 9.03584E-04 7.65294E-03 B8 -8.70345E-06 -3.64819E-03 1.41912E-03 7.54939E-03 S8 S9 K 1.47114E+00 8.36054E-01 B3 -1.08612E-01 -7.29712E-03 B4 1.37029E-02 4.15998E-03 B5 5.45345E-03 3.83439E-03 B6 6.62119E-04 7.46546E-03 B7 2.58889E-04 9.92595E-04 22 M356915 B8 -2.42099E-03 -5.56066E-04M356915 2 4.1786 0.8588 3* 25.5508 1.0000 1.53340 55.5 4* 0.6565 0.6429 5* 1.1038 2.1200 1.58820 30.3 6* -10.1780 0.1462 7 00 (aperture diaphragm) 0.6344 8* 2.3676 2.0013 1.53340 55.5 9* -1.9999 [Table 10] Example 5 Aspherical data S3 S4 S5 S6 K -146.2011675 -6.34423E-02 -8.61546E+00 -1.2885 1E+03 B3 1.49460E-02 -7.86927E-02 3.44450E-01 -5.78861E-02 B4 5.07517E-04 3.80935 E-02 -8.90158E-02 2.55526E-02 B5 -1.32274E-04 1.43775E-02 -1.62855E-02 1.48808E-02 B6 -1.58923E-05 -7.38157E-04 -2.52188E-03 -9.31242E -03 B7 -1.67562E-05 -4.11171E-03 9.03584E-04 7.65294E-03 B8 -8.70345E-06 -3.64819E-03 1.41912E-03 7.54939E-03 S8 S9 K 1.47114E+00 8.36054E- 01 B3 -1.08612E-01 -7.29712E-03 B4 1.37029E-02 4.15998E-03 B5 5.45345E-03 3.83439E-03 B6 6.62119E-04 7.46546E-03 B7 2.58889E-04 9.92595E-04 22 M356915 B8 -2.42099E-03 -5.56066E-04
【表11】 實施例6透鏡數據[Table 11] Example 6 lens data
Si ri di Nej vdj 1 16.6505 1.0000 1.77621 49.6 2 4.1786 0.8578 3 * 17.2004 1.0000 1.53340 55.5 4 * 0.6431 0.6429 5* 1.1520 2.1429 1.58820 30.3 6* -7.3870 0.1500 7 00 (孔徑光攔） 0.6260 8* 2.3702 2.0000 1.53340 55.5 9* -2.0208 5【表12】 實施例6非球面數據 S3 S4 S5 S6 K -2.64386Ε+02 -4.58437E-02 -9.15482E+00 -5.09921E+02 Β3 1.42809Ε-02 -7.92402E-02 3.35176E-01 -7.12634E-02 Β4 5.40491Ε-04 3.52923E-02 -9.02957E-02 1.90995E-02 Β5 -1.48676Ε-04 1.31971E-02 -1.71173E-02 1.16956E-02 Β6 -1.31431Ε-05 -5.53744E-04 -3.55930E-03 -1.02938E-02 Β7 -1.33726Ε-05 -3.50539E-03 1.52460E-04 6.15695E-03 Β8 -6.56668Ε-06 -3.15447E-03 1.04974E-03 2.79472E-03 S8 S9 23Si ri di Nej vdj 1 16.6505 1.0000 1.77621 49.6 2 4.1786 0.8578 3 * 17.2004 1.0000 1.53340 55.5 4 * 0.6431 0.6429 5* 1.1520 2.1429 1.58820 30.3 6* -7.3870 0.1500 7 00 (Aperture stop) 0.6260 8* 2.3702 2.0000 1.53340 55.5 9* -2.0208 5 [Table 12] Example 6 Aspherical data S3 S4 S5 S6 K -2.64386Ε+02 -4.58437E-02 -9.15482E+00 -5.09921E+02 Β3 1.42809Ε-02 -7.92402E-02 3.35176E -01 -7.12634E-02 Β4 5.40491Ε-04 3.52923E-02 -9.02957E-02 1.90995E-02 Β5 -1.48676Ε-04 1.31971E-02 -1.71173E-02 1.16956E-02 Β6 -1.31431Ε-05 -5.53744E-04 -3.55930E-03 -1.02938E-02 Β7 -1.33726Ε-05 -3.50539E-03 1.52460E-04 6.15695E-03 Β8 -6.56668Ε-06 -3.15447E-03 1.04974E-03 2.79472 E-03 S8 S9 23
M356915 K 1.54341E+00 8.19884E-01 B3 -1.09315E-01 2.23818E-03 B4 1.25560E-02 3.25786E-03 B5 4.64433E-03 1.56921E-03 B6 9.17103E-06 6.96051E-03 B7 3.85865E-05 7.93794E-04 B8 -2.44323E-03 -6.36249E-04 【表13】 實施例7透鏡數據M356915 K 1.54341E+00 8.19884E-01 B3 -1.09315E-01 2.23818E-03 B4 1.25560E-02 3.25786E-03 B5 4.64433E-03 1.56921E-03 B6 9.17103E-06 6.96051E-03 B7 3.85865E -05 7.93794E-04 B8 -2.44323E-03 -6.36249E-04 [Table 13] Example 7 Lens Data
Si ri di Nej vdj 1 12.3000 1.0000 1.77621 49.6 2 4.1790 1.5341 3* -26.6404 1.0000 1.53340 55.5 4 * 0.6507 0.6429 5* 1.0609 2.1429 1.58820 30.3 6* -9.1385 0.3214 7 00 (孔徑光欄） 0.4998 8* 2.5375 2.0000 1.53340 55.5 9氺 -2.1177 5【表14】 實施例7非球面數據 S3 S4 S5 S6 K -9.60293Ε+00 -5.04902Ε-02 -8.87991E+00 -2.45098E+03 Β3 1.25827Ε-02 -1.12135Ε-01 3.46003E-01 -6.62392E-02 24Si ri di Nej vdj 1 12.3000 1.0000 1.77621 49.6 2 4.1790 1.5341 3* -26.6404 1.0000 1.53340 55.5 4 * 0.6507 0.6429 5* 1.0609 2.1429 1.58820 30.3 6* -9.1385 0.3214 7 00 (aperture diaphragm) 0.4998 8* 2.5375 2.0000 1.53340 55.5 9氺-2.1177 5 [Table 14] Example 7 Aspherical data S3 S4 S5 S6 K -9.60293Ε+00 -5.04902Ε-02 -8.87991E+00 -2.45098E+03 Β3 1.25827Ε-02 -1.12135Ε-01 3.46003 E-01 -6.62392E-02 24
M356915 B4 3.97398E-04 2.64884E-02 -8.60747E-02 1.91338E-02 B5 -1.65999E-04 1.28095E-02 -1.79731E-02 9.64977E-03 B6 -2.14798E-06 1.60777E-03 -4.78073E-03 -1.15054E-02 B7 -2.41849E-06 -1.74315E-03 -5.77467E-04 4.86364E-03 B8 -1.11458E-06 -2.10618E-03 7.49228E-04 -1.39303E-03 S8 S9 K 1.45307E+00 9.33346E-01 B3 -8.54830E-02 2.56500E-03 B4 1.08133E-02 -5.18666E-03 B5 2.93165E-03 3.24700E-03 B6 2.75955E-04 8.75095E-03 B7 1.28084E-03 1.03528E-03 B8 -2.09024E-03 -7.62908E-04 【表15】 實施例8透鏡數據M356915 B4 3.97398E-04 2.64884E-02 -8.60747E-02 1.91338E-02 B5 -1.65999E-04 1.28095E-02 -1.79731E-02 9.64977E-03 B6 -2.14798E-06 1.60777E-03 -4.78073 E-03 -1.15054E-02 B7 -2.41849E-06 -1.74315E-03 -5.77467E-04 4.86364E-03 B8 -1.11458E-06 -2.10618E-03 7.49228E-04 -1.39303E-03 S8 S9 K 1.45307E+00 9.33346E-01 B3 -8.54830E-02 2.56500E-03 B4 1.08133E-02 -5.18666E-03 B5 2.93165E-03 3.24700E-03 B6 2.75955E-04 8.75095E-03 B7 1.28084E -03 1.03528E-03 B8 -2.09024E-03 -7.62908E-04 [Table 15] Example 8 Lens Data
Si ri di Nej vdj 1 14.0000 1.0000 1.77621 49.6 2 4.1786 1.5843 3 * -10.2907 1.0000 1.53340 55.5 4 * 0.8165 0.6429 5* 1.1591 2.1429 1.58820 30.3 6* -9.4820 0.3214 7 00 (孔徑光攔） 0.6085 8* 2.3381 2.0440 1.53340 55.5 9氺 -2.5575 25 M356915 【表16】 實施例8非球面數據 S3 S4 S5 S6 K -3.64567E+02 1.22952E-02 -7.73490E+00 -3.04642E+03 B3 9.21395E-03 -7.17063E-02 2.93803E-01 -5.63392E-02 B4 8.99575E-04 1.78053E-02 -8.12836E-02 2.29833E-02 B5 -1.21731E-04 -3.88894E-04 -9.12791E-03 1.06856E-02 B6 -2.17166E-05 -1.08821E-03 -1.35406E-03 -1.05872E-02 B7 -5.37218E-06 -5.99626E-04 4.50101E-04 5.20762E-03 B8 -1.38172E-06 -5.81662E-04 7.99634E-04 -1.69652E-03 S8 S9 K 1.04603E+00 4.27236E-01 B3 -9.20215E-02 5.22666E-03 B4 2.33382E-03 -1.25785E-02 B5 3.75288E-04 -7.46408E-03 B6 1.59615E-03 6.09177E-03 B7 2.24950E-03 5.26010E-04 B8 -1.75466E-03 -1.29266E-04Si ri di Nej vdj 1 14.0000 1.0000 1.77621 49.6 2 4.1786 1.5843 3 * -10.2907 1.0000 1.53340 55.5 4 * 0.8165 0.6429 5* 1.1591 2.1429 1.58820 30.3 6* -9.4820 0.3214 7 00 (Aperture stop) 0.6085 8* 2.3381 2.0440 1.53340 55.5 9氺-2.5575 25 M356915 [Table 16] Example 8 Aspherical data S3 S4 S5 S6 K -3.64567E+02 1.22952E-02 -7.73490E+00 -3.04642E+03 B3 9.21395E-03 -7.17063E-02 2.93803 E-01 -5.63392E-02 B4 8.99575E-04 1.78053E-02 -8.12836E-02 2.29833E-02 B5 -1.21731E-04 -3.88894E-04 -9.12791E-03 1.06856E-02 B6 -2.17166E -05 -1.08821E-03 -1.35406E-03 -1.05872E-02 B7 -5.37218E-06 -5.99626E-04 4.50101E-04 5.20762E-03 B8 -1.38172E-06 -5.81662E-04 7.99634E- 04 -1.69652E-03 S8 S9 K 1.04603E+00 4.27236E-01 B3 -9.20215E-02 5.22666E-03 B4 2.33382E-03 -1.25785E-02 B5 3.75288E-04 -7.46408E-03 B6 1.59615E -03 6.09177E-03 B7 2.24950E-03 5.26010E-04 B8 -1.75466E-03 -1.29266E-04
在上述實施例1〜8中，第一透鏡L1以光學玻璃為材 5 質，且將兩面設為球面形狀，所以，獲得良好的耐氣候性、 及難以由砂土等劃痕，並且，可比較廉價製造。對第二透 鏡L2、第三透鏡L3、第四透鏡L4而言，因作為像差修正能 力高的非球面透鏡，其材質設為塑料，所以，高精準度地 實現非球面形狀的同時，可輕量且低成本製造。 26 M356915 在表表不對應於上述實施例丨〜8的 各種數據及上述條件式⑴〜⑻的值。 【表17】 實施例 1 實施例 2 「1 — 貫施例 3 實施例 4 實施例 5 實施例 6 實施例 7 實施例 8 f 1.227 TTITo' 1.193 1.221 1.212 1.198 1.203 1.286 Bf 1.727 1.5ΊΤ- 1.701 1.642 1.604 1.607 1.615 1.569 L 10.692 _ 2.8 T〇T45T 'XT' 11.483 —. 10.010 ~ 2.8 10.008 ~ 2.8 10.026 2.8 10.757 10.912 Fno. 2.8 2.8 2ω 158.8° 158.8° 158.4° 158.0° 158.0° 156.2。 155.4° fl2/f34 d 7/f -0.286 -0.297 -0.275 -0.280 -0.291 -0.259 -0.307 \X / i i U.4/0 0.459 0.524 ^CT52 0.441 0.523 0.523 0.415 0.473 f2/f / f -1.054 ^TT〇99~ -1.046 -1.057 -1.068 -0.977 -1.069 1J / X 1.490 1.461 1.522 — 1.409 1.501 1.560 1.457 1.476 fl2/f -0.753 -0.755 -0.738 -0.719 -0.770 -0.789 -0.723 -0.758 f/f34 0.380 0.394 0.370 -—— 0.382 0.364 0.369 0.358 0.405 Y/L 0.231 0.237 0.216 0.247 0.247 0.247 0.230 0.227 ' a 20.5° 20.8。 20.2° 19.7° 19.4° 19.3° 20.5° 18.4° 在表17中，f為整個系統的焦距，Bf為空氣換算的後截 距，L為從最靠物體側透鏡面到像面的光軸上的距離（後截 距畺被空氣換异），FNo.為F值，2ω為最大的全視角。f、 Bf、L的單位是mm ’ 2ω、6>的單位是度。 而且’在表 17 中 ’fl2、f34、d7、f2、f3'Y、θ 為條 件式（1)〜(8)的各值。對應於表17的條件式（1)〜(8)的數值是 以e線（546.07nm)為基準波長的值。如表丨7所示，實施例^ 的廣角攝影透鏡皆滿足上述條件式（1)〜(8)。 27 M356915 從表17可知，實施例丨~8的廣角攝影透鏡以廣角且小 型的方式被構成，遠心性比公開前案3的攝影透鏡還高。 在圖10〜圖17分別表示實施例丨〜8的廣角攝影透鏡的 球面像差、散光像差、畸變像差（歪曲像差）、倍率色像差、 5彗形像差的像差圖。而且，圖10〜圖17表示有在第四透鏡 L4和像面Sim之間配置光學部件PP時的各像差。在各像差 圖表示以e線為基準波長的像差，但在球面像差圖及倍率色 像差圖中，也表示對於c線（波長656,3nm)、^^(波長436nm) 的像差，分別附上e、c、g的符號。球面像差圖的？1!^〇.為1? 1〇 值’其他像差圖的ω為半視角。 需要說明的是，對畸變像差圖而言，使用整個系統的 焦距f、半視角ω (變數處理，<最大的全視角）而將理 想像高設為fxtanw，且表示距其的偏移量，因此，在周邊 部就變為負的較大值。但是，實施例丨〜8的廣角攝影透鏡 15的畸變像差，若以根據立體投影或等距離投影的像高為基 準進行計算，則變為正的較大值。這是因為實施例丨〜呂的 廣角攝影透鏡是按照與以根據立體投影或等距離投影的像 高控制畸變像差而設計的透鏡相比、周邊部的圖像映射得 大的方式所考慮後的透鏡。從如圖1〇〜丨7可知，實施例1〜8 20的各像差被良好地得以修正，且具有良好的光學性能。 即，實施例1〜8的廣角攝影透鏡由4片的較少的透鏡片 數構成，並實現小型化及遠心性的改善，且可廉價製作， 還具有高的光學性能。具備這些優點的實施例id的廣角 28 M356915 側方、後方等影 攝影透鏡可適用於用於拍攝汽車的前方 像的車載用相機等。 〃作為使用例，在圖18表示在汽車1〇〇上裝載具備 施方式的廣角攝影透鏡的攝影裳置的狀態。在圖㈣，片 車⑽包括有用於拍攝其助手席側的側面的死角範圍^ 外相機HH、用於拍攝汽車⑽的後側的死角範圍的車外相 義、和安裝在後視鏡背面且用於拍攝與駕駛席相同的視 野範圍的車内相機103。車外相機10卜車外相機102和車内 相，103是本實施方式的攝影裝置’且包括有：根據本創作 的實施例的廣角攝影透鏡、和將廣角攝影透鏡所形成的光 學像轉換成電信號的攝影元件5。 本創作的實施例的廣角攝影透鏡，因具有上述的優 …’占所以，也可小型且廉價構成車外相機1 〇丨、i〇2及車内 相機103，且在其攝影元件5的攝影面可成像良好的像。 15 以上，例舉實施方式及實施例說明了本創作，但本創 作不限於上述實施方式及實施例，可進行種種變形。例如， • 各透鏡成分的曲率半徑、面間隔及折射率的值不限於在上 述各數值實施例所示的值，可取其他值。 而且’在攝影裝置的實施方式中，圖示說明了將本創 20作適用於車載用相機的例，但本創作不限於此用途，例如， 也可適用於移動終端用相機或監視相機等。 【圖式簡單說明】 29 M356915 貫施例方式的廣角攝影透鏡的剖視 圖1是表示本創作的一 圖〇 圖2是表示本創作的實施胸廣角攝影透鏡的透鏡 剖視圖。 5圖3是表示本創作的實施例2的廣角攝影透鏡的透鏡結構的 剖視圖。 圖4是表示本創作的實施例3的廣角攝影透鏡的透鏡結構的 剖視圖。 圖5是表示本創作的實施例4的廣角攝影透鏡的透鏡結構的 10 剖視圖。 鏡的透鏡結構的 圖6是表示本創作的實施例5的廣角攝影透 剖視圖。 構的 圖7是表示本創作的實施例6的廣角攝影透鏡的透鏡結 剖視圖。 攝影透鏡的透鏡結構的 15圖8是表示本創作的實施例7的廣角 剖視圖。 鏡的透鏡結構的 圖9是表示本創作的實施例8的廣角攝影透 剖視圖。 圖10是本創作的實施例i的廣角攝影透鏡的各像差圖。 π圖11是本創作的實施例2的廣角攝影透鏡的各像差圖。 圖12是本創作的實施例3的廣角攝影透鏡的各像差圖。 圖13是本創作的實施例4的廣角攝影透鏡的各像差圖。 圖14是本創作的實施例5的廣角攝影透鏡的各像差圖。 圖15是本創作的實施例㈣廣角攝影透鏡的各像差圖。 30 5攝影元件 L3第三透鏡 Sim像面 Y最大像高 103車内相機In the above-described first to eighth embodiments, the first lens L1 is made of optical glass and has both surfaces in a spherical shape. Therefore, good weather resistance and scratching by sand or the like are obtained, and Cheaper manufacturing. In the second lens L2, the third lens L3, and the fourth lens L4, since the aspherical lens having high aberration correction capability is made of plastic, the aspherical shape can be realized with high precision. Lightweight and low cost manufacturing. 26 M356915 The table does not correspond to the various data of the above-described embodiments 丨8 and the values of the above conditional expressions (1) to (8). [Table 17] Example 1 Example 2 "1 - Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 f 1.227 TTITo' 1.193 1.221 1.212 1.198 1.203 1.286 Bf 1.727 1.5ΊΤ- 1.701 1.642 1.604 1.607 1.615 1.569 L 10.692 _ 2.8 T〇T45T 'XT' 11.483 —. 10.010 ~ 2.8 10.008 ~ 2.8 10.026 2.8 10.757 10.912 Fno. 2.8 2.8 2ω 158.8° 158.8° 158.4° 158.0° 158.0° 156.2. 155.4° fl2/f34 d 7 /f -0.286 -0.297 -0.275 -0.280 -0.291 -0.259 -0.307 \X / ii U.4/0 0.459 0.524 ^CT52 0.441 0.523 0.523 0.415 0.473 f2/f / f -1.054 ^TT〇99~ -1.046 -1.057 -1.068 -0.977 -1.069 1J / X 1.490 1.461 1.522 — 1.409 1.501 1.560 1.457 1.476 fl2/f -0.753 -0.755 -0.738 -0.719 -0.770 -0.789 -0.723 -0.758 f/f34 0.380 0.394 0.370 -—— 0.382 0.364 0.369 0.358 0.405 Y/L 0.231 0.237 0.216 0.247 0.247 0.247 0.230 0.227 ' a 20.5° 20.8. 20.2° 19.7° 19.4° 19.3° 20.5° 18.4° In Table 17, f is the focal length of the whole system, and Bf is the air-converted back intercept. , L is the lens from the most object side The distance from the surface to the optical axis of the image surface (the rear intercept 畺 is changed by air), FNo. is the F value, and 2ω is the maximum full viewing angle. The unit of f, Bf, and L is the unit of mm ' 2ω, 6 gt; Further, 'in Table 17, 'fl2, f34, d7, f2, f3'Y, and θ are the values of the conditional expressions (1) to (8). Corresponding to the conditional expressions (1) to (8) of Table 17. The numerical value is a value based on the e-line (546.07 nm). As shown in Table 7, the wide-angle lens of Example ^ satisfies the above conditional expressions (1) to (8). 27 M356915 As is apparent from Table 17, the wide-angle photographic lens of the embodiment 丨8 is constructed in a wide-angle and small-sized manner, and the telecentricity is higher than that of the photographic lens of the prior art 3. Fig. 10 to Fig. 17 show aberration diagrams of spherical aberration, astigmatic aberration, distortion (transliteration aberration), lateral chromatic aberration, and 5 彗 aberration of the wide-angle imaging lenses of Examples -8 to 8, respectively. Further, Fig. 10 to Fig. 17 show aberrations when the optical member PP is disposed between the fourth lens L4 and the image surface Sim. The aberration diagrams show aberrations with the e-line as the reference wavelength. However, in the spherical aberration diagram and the magnification chromatic aberration diagram, the images for the c-line (wavelength 656, 3 nm) and ^^ (wavelength 436 nm) are also shown. Poor, attach the symbols of e, c, g respectively. Spherical aberration diagram? 1!^〇. is 1? 1〇 value ω of other aberration diagrams is a half angle of view. It should be noted that, for the distortion aberration map, the focal length f of the entire system, the half angle of view ω (variable processing, <maximum full viewing angle) is used, and the ideal image height is set to fxtanw, and the offset from it is indicated. The amount, therefore, becomes a negative larger value at the peripheral portion. However, the distortion aberration of the wide-angle imaging lens 15 of the embodiment -8 is a positive large value when calculated based on the image height based on stereoscopic projection or equidistant projection. This is because the wide-angle photographic lens of the embodiment 丨 吕 考虑 is considered in such a manner that the image of the peripheral portion is mapped larger than the lens designed to control the distortion aberration according to the image height of the stereoscopic projection or the equidistant projection. Lens. As can be seen from Fig. 1 to Fig. 7, the aberrations of Examples 1 to 8 20 were well corrected and had good optical performance. In other words, the wide-angle imaging lenses of the first to eighth embodiments are composed of a small number of four lenses, and are small in size and improved in telecentricity, and can be produced at low cost and have high optical performance. The wide angle of the embodiment id having these advantages 28 M356915 The side and rear imaging lenses can be applied to an in-vehicle camera for photographing the front image of a car. As a use example, Fig. 18 shows a state in which an image of a wide-angle lens having a mode is mounted on a car. In Fig. 4, the carriage (10) includes a dead angle range for photographing the side of the passenger's seat side, an external camera HH, an exterior view for photographing the dead angle range of the rear side of the automobile (10), and a rear surface mounted on the rear view mirror. The in-vehicle camera 103 that captures the same field of view as the driver's seat. The exterior camera 10 and the interior camera 103 are the imaging device of the present embodiment and include a wide-angle lens according to an embodiment of the present invention and an optical image formed by the wide-angle lens into an electrical signal. Photographic element 5. The wide-angle photographic lens of the embodiment of the present invention can be configured to be small and inexpensive, and can constitute the exterior camera 1 〇丨, i 〇 2 and the in-vehicle camera 103 in a small and inexpensive manner, and can be mounted on the photographic surface of the photographic element 5 thereof. A good image is imaged. The above description has been described with reference to the embodiments and examples, but the present invention is not limited to the above-described embodiments and examples, and various modifications can be made. For example, the values of the radius of curvature, the interplanar spacing, and the refractive index of each lens component are not limited to those shown in the above numerical examples, and other values may be employed. Further, in the embodiment of the photographing apparatus, an example in which the present invention is applied to a vehicle-mounted camera has been described. However, the present invention is not limited to such use, and may be applied to, for example, a camera for a mobile terminal or a surveillance camera. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing a lens of a wide-angle lens of the present invention. FIG. 2 is a cross-sectional view showing a chest wide-angle lens of the present invention. Fig. 3 is a cross-sectional view showing a lens configuration of a wide-angle lens of Example 2 of the present invention. Fig. 4 is a cross-sectional view showing a lens configuration of a wide-angle lens of Example 3 of the present invention. Fig. 5 is a cross-sectional view showing the lens structure of the wide-angle lens of Example 4 of the present invention. Fig. 6 is a perspective view showing a wide-angle photographing of a fifth embodiment of the present invention. Fig. 7 is a cross-sectional view showing the lens of the wide-angle lens of Example 6 of the present invention. Fig. 8 of the lens structure of the photographic lens is a wide-angle sectional view showing a seventh embodiment of the present invention. Fig. 9 is a perspective view showing a wide-angle photographing of the eighth embodiment of the present invention. Fig. 10 is a view showing aberrations of the wide-angle lens of the embodiment i of the present invention. Fig. 11 is a diagram showing aberrations of the wide-angle imaging lens of Example 2 of the present creation. Fig. 12 is a view showing aberrations of the wide-angle lens of Example 3 of the present invention. Fig. 13 is a view showing aberrations of the wide-angle lens of Example 4 of the present invention. Fig. 14 is a view showing aberrations of the wide-angle lens of Example 5 of the present invention. Fig. 15 is a view showing aberrations of the wide-angle imaging lens of the fourth embodiment of the present invention. 30 5 photographic components L3 third lens Sim image surface Y maximum image height 103 interior camera
1〇1，102車外相機 M356915 實施例7的廣角攝影透鏡的各像差圖。 ::創作的實施例8的廣角攝影透鏡的各像差圖。 ^於說明本創作的實施方式的車載用攝影裝置的配 置圖。 【主要元件符號說明】 1廣角攝影透鏡 2轴外光線 L1第一透鏡 L2第二透鏡 L4第四透鏡 Pim成像位置1〇1,102 exterior camera M356915 Each aberration diagram of the wide-angle imaging lens of Example 7. The aberration diagrams of the wide-angle photographic lens of Example 8 created. A configuration diagram of an in-vehicle photographing apparatus which explains an embodiment of the present creation. [Main component symbol description] 1 Wide-angle photographic lens 2 off-axis light L1 first lens L2 second lens L4 fourth lens Pim imaging position
St孔徑光攔 Z光軸 100汽車 PP光學部件 L從最靠物體側透鏡面到像面的光軸上的距離 d 1第一個面和第二個面的光轴上的面間隔 d2第一個面和第三個面的光軸上的面間隔 d3第三個面和第四個面的光軸上的面間隔 d4第四個面和第5個面的光軸上的面間隔 d5第5個面和第6個面的光軸上的面間隔 d6第6個面和第7個面的光軸上的面間隔 d7第7個面和第8個面的光軸上的面間隔 d8第8個面和第9個面的光轴上的面間隔 r 1第一個面的曲率半徑 r2第二個面的曲率半徑 r3第三個面的曲率半徑 31 M356915 r4第四個面的曲率半徑 r5第5個面的曲率半徑 r6第6個面的曲率半徑 r7第7個面的曲率半徑 r8第8個面的曲率半徑 r9第9個面的曲率半徑St aperture stop Z-axis 100 optical PP optical component L from the object-side lens surface to the optical axis of the image surface d 1 first surface and the second surface of the optical axis on the surface spacing d2 first The interplanar spacing d3 on the optical axis of the face and the third face, the face spacing d4 on the optical axis of the third face and the fourth face, and the face spacing d5 on the optical axis of the fourth face and the fifth face The surface spacing d6 on the optical axis of the 5 faces and the 6th face is the interplanar spacing d7 on the optical axis of the 6th face and the 7th face. The face spacing d8 on the optical axis of the 7th face and the 8th face Surface spacing r1 on the optical axis of the 8th and 9th faces r 1 Radius of curvature of the first face r2 Radius of curvature of the second face r3 Radius of curvature of the third face 31 M356915 r4 Curvature of the fourth face Radius r5 radius of curvature of the fifth face r6 radius of curvature of the sixth face r7 radius of curvature of the seventh face r8 radius of curvature of the eighth face r9 radius of curvature of the ninth face
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| Publication Number | Publication Date |
|---|---|
| TWM356915U true TWM356915U (en) | 2009-05-11 |
Family
ID=41276576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW97218493U TWM356915U (en) | 2008-04-25 | 2008-10-16 | Wide-angle photographic lens and photographic device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5113001B2 (en) |
| CN (1) | CN201344994Y (en) |
| TW (1) | TWM356915U (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5270425B2 (en) | 2009-03-31 | 2013-08-21 | 富士フイルム株式会社 | Imaging lens and imaging apparatus |
| KR101108802B1 (en) * | 2009-12-08 | 2012-02-09 | 삼성전기주식회사 | Optical system for camera |
| JP5893997B2 (en) * | 2012-04-24 | 2016-03-23 | 京セラ株式会社 | Imaging lens and imaging apparatus |
| WO2014123137A1 (en) * | 2013-02-08 | 2014-08-14 | コニカミノルタ株式会社 | Imaging optical system, imaging optical device, and digital instrument |
| CN112731632A (en) * | 2021-01-20 | 2021-04-30 | 湖北华鑫光电有限公司 | 4P large-visual-angle large-relative-illumination lens |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4700821B2 (en) * | 2001-02-21 | 2011-06-15 | マクセルファインテック株式会社 | Wide angle lens |
| JP2007206516A (en) * | 2006-02-03 | 2007-08-16 | Enplas Corp | Imaging lens |
| JP5084335B2 (en) * | 2007-04-16 | 2012-11-28 | 京セラ株式会社 | Imaging lens |
| JP2009265338A (en) * | 2008-04-24 | 2009-11-12 | Kyocera Corp | Wide-angle imaging lens |
-
2008
- 2008-09-19 JP JP2008240415A patent/JP5113001B2/en not_active Expired - Fee Related
- 2008-10-16 TW TW97218493U patent/TWM356915U/en not_active IP Right Cessation
- 2008-10-21 CN CNU200820175604XU patent/CN201344994Y/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP5113001B2 (en) | 2013-01-09 |
| JP2009282484A (en) | 2009-12-03 |
| CN201344994Y (en) | 2009-11-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK4K | Expiration of patent term of a granted utility model |