TWI521236B - Wide-angle lens - Google Patents

Wide-angle lens Download PDF

Info

Publication number
TWI521236B
TWI521236B TW102103448A TW102103448A TWI521236B TW I521236 B TWI521236 B TW I521236B TW 102103448 A TW102103448 A TW 102103448A TW 102103448 A TW102103448 A TW 102103448A TW I521236 B TWI521236 B TW I521236B
Authority
TW
Taiwan
Prior art keywords
lens
wide
angle
angle lens
present
Prior art date
Application number
TW102103448A
Other languages
Chinese (zh)
Other versions
TW201430375A (en
Inventor
Fu Ping Shih
Original Assignee
Coxon Precise Ind Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Coxon Precise Ind Co Ltd filed Critical Coxon Precise Ind Co Ltd
Priority to TW102103448A priority Critical patent/TWI521236B/en
Publication of TW201430375A publication Critical patent/TW201430375A/en
Application granted granted Critical
Publication of TWI521236B publication Critical patent/TWI521236B/en

Links

Landscapes

  • Lenses (AREA)

Description

廣角鏡頭 Wide-angle lens

本發明係關於一種鏡頭結構，詳而言之，係關於一種具複數透鏡之廣角鏡頭。 The present invention relates to a lens structure, and more particularly to a wide-angle lens having a plurality of lenses.

隨著科技進步，近年來數位相機或數位攝影機逐漸取代傳統機械相機而成為主流。除了攝影機及相機，一些行車記錄器、手機或遊戲機等亦會搭配一組或多組鏡頭來提供攝像功能。 With the advancement of technology, digital cameras or digital cameras have gradually replaced traditional mechanical cameras in recent years. In addition to cameras and cameras, some driving recorders, mobile phones or game consoles will also be equipped with one or more sets of lenses to provide camera functions.

現行的電子裝置體積逐漸微型化，故裝載於其上的鏡頭亦須符合體積小、重量輕的限制，但又不能影響其光學品質。以往光學鏡頭在設計上最大的難題是，物體的成像經過鏡頭的光學作用後會有影像彎曲的問題，為了補正成像的畸變(即成像中越接近邊緣，影像會有擴張且直線彎曲成弧線的現象)，需要在鏡頭的前端配置多片負彎月形透鏡及正彎月形透鏡，且隨著所需的視角越大，需要的鏡片數越多，導致鏡頭太長且重量過重，不符合現行電子裝置之輕薄短小的訴求。 The current electronic device is gradually miniaturized, so the lens mounted thereon must also meet the requirements of small size and light weight, but it cannot affect its optical quality. In the past, the biggest problem in the design of optical lenses is that the image of the object will be bent after the optical action of the lens. In order to correct the distortion of the image (that is, the closer the image is to the edge, the image will expand and bend straight into an arc). ), it is necessary to arrange a plurality of negative meniscus lenses and positive meniscus lenses at the front end of the lens, and as the required viewing angle is larger, the more lenses are required, resulting in the lens being too long and overweight, which is not in accordance with the current The light and short appeal of electronic devices.

雖然目前影像處理的技術相當進步，通常可利用軟體處理影像以補正鏡頭的像差，但經處理過後的影像難免會失真。因此，如何設計一種能提供大視角及良好影像品質 之廣角鏡頭，為目前業界亟待解決的議題。 Although the current image processing technology is quite advanced, it is usually possible to use a software to process an image to correct the aberration of the lens, but the processed image is inevitably distorted. So how to design a way to provide a large viewing angle and good image quality The wide-angle lens is an urgent issue to be solved in the industry.

本發明之廣角鏡頭，從物側至像側依序包括：第一透鏡，係具有負折射力；第二透鏡，係具有正折射力；第三透鏡，係具有正折射力，並設置有光圈；第四透鏡，係具有負折射力；及第五透鏡；該廣角鏡頭係滿足以下條件：以及，其中，該f 1、f 2、f 3、f 4、f 5分別為該第一、第二、第三、第四及第五透鏡的焦距，該N 3為該第三透鏡的折射率，該R 6及R 7分別為該第三透鏡之朝物側的一面和朝像側的一面之曲率半徑。 The wide-angle lens of the present invention includes, in order from the object side to the image side, a first lens having a negative refractive power, a second lens having a positive refractive power, and a third lens having a positive refractive power and being provided with an aperture; a fourth lens having a negative refractive power; and a fifth lens; the wide-angle lens satisfying the following conditions: as well as Wherein f 1 , f 2 , f 3 , f 4 , f 5 are focal lengths of the first, second, third, fourth, and fifth lenses, respectively, and N 3 is a refractive index of the third lens R 6 and R 7 are the curvature radii of the one side of the third lens on the object side and the side facing the image side, respectively.

於一實施態樣中，本發明之廣角鏡頭還可滿足以下條件：。 In an embodiment, the wide-angle lens of the present invention can also satisfy the following conditions: .

於另一實施態樣中，本發明之廣角鏡頭還可滿足以下條件：，其中，該f為該廣角鏡頭的整體焦距，該f 12為該第一和第二透鏡的合成焦距。 In another embodiment, the wide-angle lens of the present invention can also satisfy the following conditions: Where f is the overall focal length of the wide-angle lens, and f 12 is the composite focal length of the first and second lenses.

此外，本發明之第三透鏡可滿足以下條件V 3>50，其中，該V 3為該第三透鏡的阿貝數，且該第三透鏡的材質可為玻璃(或模造玻璃)或塑膠。 In addition, the third lens of the present invention can satisfy the following condition V 3 >50, wherein the V 3 is the Abbe number of the third lens, and the material of the third lens can be glass (or molded glass) or plastic.

相較於習知技術，本發明之廣角鏡頭具有較大的視角、較小的畸變、較佳的像差及色差校正，因此相當適合 於具有攝影鏡頭的電子設備。 Compared with the prior art, the wide-angle lens of the present invention has a large viewing angle, small distortion, better aberration and chromatic aberration correction, and is therefore quite suitable. For electronic devices with photographic lenses.

L01‧‧‧第一透鏡 L01‧‧‧ first lens

L02‧‧‧第二透鏡 L02‧‧‧second lens

L03‧‧‧第三透鏡 L03‧‧‧ third lens

L04‧‧‧第四透鏡 L04‧‧‧4th lens

L05‧‧‧第五透鏡 L05‧‧‧ fifth lens

L11、L21、L31、L41、L12、L22、L32、L42、L13、L23、L33、L43、L14、L24、L34、L44、L15、L25、L35、L45‧‧‧透鏡 L11, L21, L31, L41, L12, L22, L32, L42, L13, L23, L33, L43, L14, L24, L34, L44, L15, L25, L35, L45‧‧ lens

ST‧‧‧光圈 ST‧‧‧ aperture

IR‧‧‧濾光鏡 IR‧‧‧Filter

CG‧‧‧感光元件保護玻璃 CG‧‧‧Photosensitive element protection glass

Im‧‧‧受光面 Im‧‧‧Stained surface

ax‧‧‧光軸 Ax‧‧‧ optical axis

第1圖係繪示本發明之廣角鏡頭之透鏡組合圖；第2A圖係繪示本發明之廣角鏡頭之第一實施例之透鏡組合圖；第2B圖係繪示本發明之廣角鏡頭之第一實施例之光學實驗結果圖；第3A圖係繪示本發明之廣角鏡頭之第二實施例之透鏡組合圖；第3B圖係繪示本發明之廣角鏡頭之第二實施例之光學實驗結果圖；第4A圖係繪示本發明之廣角鏡頭之第三實施例之透鏡組合圖；第4B圖係繪示本發明之廣角鏡頭之第三實施例之光學實驗結果圖；第5A圖係繪示本發明之廣角鏡頭之第四實施例之透鏡組合圖；以及第5B圖係繪示本發明之廣角鏡頭之第四實施例之光學實驗結果圖。 1 is a lens assembly diagram of a wide-angle lens of the present invention; FIG. 2A is a lens assembly diagram of a first embodiment of the wide-angle lens of the present invention; and FIG. 2B is a first embodiment of a wide-angle lens of the present invention. FIG. 3A is a lens assembly diagram of a second embodiment of the wide-angle lens of the present invention; FIG. 3B is a diagram showing an optical experiment result of the second embodiment of the wide-angle lens of the present invention; FIG. The lens assembly diagram of the third embodiment of the wide-angle lens of the present invention is shown; FIG. 4B is a diagram showing the optical experiment results of the third embodiment of the wide-angle lens of the present invention; and FIG. 5A is the diagram of the wide-angle lens of the present invention. The lens assembly diagram of the fourth embodiment; and the fifth panel diagram shows the optical experiment result diagram of the fourth embodiment of the wide-angle lens of the present invention.

以下係藉由特定的實施形態說明本發明之技術內容，熟悉此技術之人士可由本說明書所揭示之內容輕易地了解本發明之其他優點與功效，亦可藉由其他不同的實施形態加以施行或應用。 In the following, the technical content of the present invention is described by a specific embodiment, and those skilled in the art can easily understand other advantages and effects of the present invention by the contents disclosed in the present specification, and can be implemented by other different embodiments or application.

第1圖為本發明之廣角鏡頭之透鏡組合圖，廣角鏡頭從光軸ax的物側至像側依序排列有第一透鏡L01、第二透鏡L02、第三透鏡L03、第四透鏡L04及第五透鏡L05。 1 is a lens assembly diagram of a wide-angle lens of the present invention. The wide-angle lens sequentially has a first lens L01, a second lens L02, a third lens L03, a fourth lens L04, and a fifth from the object side to the image side of the optical axis ax. Lens L05.

第一透鏡L01可具有負折射力，且第一透鏡L01之朝像側的一面之曲率半徑R 2為正，第一透鏡L01通常為凹透鏡。 The first lens L01 may have a negative refractive power, and the curvature radius R 2 of the one side of the first lens L01 toward the image side is positive, and the first lens L01 is generally a concave lens.

第二透鏡L02可具有正折射力，且第二透鏡L02之朝物側的一面之曲率半徑R 3為正，朝像側的一面之曲率半徑R 4為負，第二透鏡L02通常為凸透鏡。 The second lens L02 may have a positive refractive power, and the curvature radius R 3 of the one side of the second lens L02 on the object side is positive, and the curvature radius R 4 of the one side toward the image side is negative, and the second lens L02 is generally a convex lens.

於第一透鏡L01和第二透鏡L02滿足條件：時，本發明之廣角鏡頭可達到較大的視角，約80°以上。 The first lens L01 and the second lens L02 satisfy the condition: In this case, the wide-angle lens of the present invention can achieve a large viewing angle of about 80° or more.

又，於第一透鏡L01和第二透鏡L02滿足條件：時(該f為該廣角鏡頭的整體焦距，該f 12為該第一和第二透鏡的合成焦距)，本發明之廣角鏡頭可達到較大的視角，約80°以上，且該廣角鏡頭具有較佳的畸變校正，約控制在2%以內。 Moreover, the first lens L01 and the second lens L02 satisfy the condition: When f is the overall focal length of the wide-angle lens, the f 12 is the combined focal length of the first and second lenses, the wide-angle lens of the present invention can achieve a larger viewing angle, about 80° or more, and the wide-angle lens has better Distortion correction, about 2% or less.

第三透鏡L03可具有正折射力，且第三透鏡L03之朝物側的一面之曲率半徑R 6為正，朝像側的一面之曲率半徑R 7為負，第三透鏡L03通常為凸透鏡。 The third lens L03 may have a positive refractive power, and the curvature radius R 6 of the one side of the third lens L03 on the object side is positive, and the curvature radius R 7 of the one side toward the image side is negative, and the third lens L03 is generally a convex lens.

於第三透鏡L03滿足條件：V 3>50時，例如，第三透鏡L03的材質可例如為玻璃(或模造玻璃)或塑膠，且該V 3為該第三透鏡的阿貝數，本發明之廣角鏡頭可達到較佳的色差 校正。於第三透鏡L03的材料為玻璃時，其兩面可皆為球面；於第三透鏡L03的材料為模造玻璃或塑膠時，兩面可皆為球面、或皆為非球面、或一面為球面而另一面為非球面。 When the third lens L03 satisfies the condition: V 3 >50, for example, the material of the third lens L03 may be, for example, glass (or molded glass) or plastic, and the V 3 is the Abbe number of the third lens, and the present invention The wide-angle lens achieves better chromatic aberration correction. When the material of the third lens L03 is glass, both sides thereof may be spherical surfaces; when the material of the third lens L03 is molded glass or plastic, both sides may be spherical, or both aspherical, or one side of the spherical surface and the other One side is aspherical.

又，於第三透鏡L03滿足條件：時(該f 1、f 2、f 3、f 4、f 5分別為該第一、第二、第三、第四及第五透鏡的焦距，該N 3為該第三透鏡的折射率，該R 6及R 7分別為該第三透鏡之朝物側的一面和朝像側的一面的曲率半徑)，本發明之廣角鏡頭可達到較佳的色差及像差校正。 Moreover, the condition is satisfied in the third lens L03: ( f 1 , f 2 , f 3 , f 4 , f 5 are focal lengths of the first, second, third, fourth, and fifth lenses, respectively, and N 3 is a refractive index of the third lens, The R 6 and R 7 are the radius of curvature of the object-side side and the image-facing side of the third lens, respectively, and the wide-angle lens of the present invention can achieve better chromatic aberration and aberration correction.

第四透鏡L04可具有負折射力，且第四透鏡L04之朝物側的一面之曲率半徑R 8為負或正，第四透鏡L04通常為凹透鏡。 The fourth lens L04 may have a negative refractive power, and the radius of curvature R 8 of the one side of the fourth lens L04 on the object side is negative or positive, and the fourth lens L04 is generally a concave lens.

第五透鏡L05可具有負或正折射力。 The fifth lens L05 may have a negative or positive refractive power.

再者，第一透鏡L01之至少一面、第二透鏡L02之至少一面、第四透鏡L04之至少一面和第五透鏡L05之至少一面為非球面，所述非球面係滿足非球面公式，，其中，z為相對於光軸上表面頂點的位移量，y為距離光軸的高度、R為頂點曲率半徑、K為圓錐常數、及A、B、C、D、E為非球面係數故，本發明之廣角鏡頭可達到較佳的畸變校正，約控制在2%以內。 Furthermore, at least one surface of the first lens L01, at least one surface of the second lens L02, at least one surface of the fourth lens L04, and at least one surface of the fifth lens L05 are aspherical surfaces, and the aspherical surface system satisfies an aspherical formula. Where z is the displacement relative to the apex of the upper surface of the optical axis, y is the height from the optical axis, R is the radius of curvature of the vertex, K is the conic constant, and A, B, C, D, E are aspherical coefficients The wide-angle lens of the present invention can achieve better distortion correction, and is controlled within about 2%.

再者，本發明之廣角鏡頭復包括有光圈ST，可設置於 第二透鏡L02與第三透鏡L03之間鄰近第三透鏡L03之處，如第1圖所示，或者，亦可設置於第一透鏡L01與第二透鏡L02之間鄰近第二透鏡L02之處，或設置於第三透鏡L03與第四透鏡L04之間。 Furthermore, the wide-angle lens of the present invention includes an aperture ST which can be disposed on The second lens L02 and the third lens L03 are adjacent to the third lens L03, as shown in FIG. 1, or may be disposed between the first lens L01 and the second lens L02 adjacent to the second lens L02. Or disposed between the third lens L03 and the fourth lens L04.

另外，在第五透鏡L05之朝像側的附近設有濾光鏡IR和感光元件保護玻璃CG，光線沿著光軸ax經過光圈ST而於受光面Im成像。 Further, a filter IR and a photosensitive element protective glass CG are provided in the vicinity of the image side of the fifth lens L05, and the light is imaged on the light receiving surface Im through the aperture ST along the optical axis ax.

因此，由上述可知，本發明之廣角鏡頭具有較大的視角、較小的畸變、較佳的像差及色差校正。 Therefore, as can be seen from the above, the wide-angle lens of the present invention has a large viewing angle, a small distortion, a good aberration, and a chromatic aberration correction.

以下說明本發明之廣角鏡頭的具體實施例。 A specific embodiment of the wide-angle lens of the present invention will be described below.

第一實施例 First embodiment

第2A圖係為本發明廣角鏡頭之第一具體實施例之透鏡組合圖，下列表一至二為該第一具體實施例的數據資料，第2B圖為本發明廣角鏡頭之第一具體實施例的光學效果，其中，第2B圖中的各圖表用以表示廣角鏡頭的球面像差、場曲、畸變及橫向色差。 2A is a lens assembly diagram of a first embodiment of the wide-angle lens of the present invention, the following Tables 1 to 2 are data of the first embodiment, and FIG. 2B is an optical effect of the first embodiment of the wide-angle lens of the present invention. Among them, each of the graphs in FIG. 2B is used to represent spherical aberration, curvature of field, distortion, and lateral chromatic aberration of the wide-angle lens.

第二實施例 Second embodiment

第3A圖係為本發明廣角鏡頭之第二具體實施例之透鏡組合圖，下列表三至四為該第二具體實施例的數據資料，第3B圖為本發明廣角鏡頭之第二具體實施例的光學效果，其中，第3B圖中的各圖表用以表示廣角鏡頭的球面像差、場曲、畸變及橫向色差。 3A is a lens assembly diagram of a second embodiment of the wide-angle lens of the present invention, the following Tables 3 to 4 are data of the second embodiment, and FIG. 3B is an optical diagram of a second embodiment of the wide-angle lens of the present invention. The effect is that each of the graphs in FIG. 3B is used to represent spherical aberration, curvature of field, distortion, and lateral chromatic aberration of the wide-angle lens.

第三實施例 Third embodiment

第4A圖係為本發明廣角鏡頭之第三具體實施例之透鏡組合圖，表五和六為第三具體實施例的數據資料，第4B圖為本發明廣角鏡頭之第三具體實施例的光學效果，其中，第4B圖中的各圖表分別表示廣角鏡頭的球面像差、場曲、畸變及橫向色差。需說明的是，於第三實施例中，第三透鏡的兩面皆為球面。 4A is a lens assembly diagram of a third embodiment of the wide-angle lens of the present invention, Tables 5 and 6 are data materials of the third embodiment, and FIG. 4B is an optical effect of the third embodiment of the wide-angle lens of the present invention. Here, each of the graphs in FIG. 4B represents spherical aberration, curvature of field, distortion, and lateral chromatic aberration of the wide-angle lens. It should be noted that in the third embodiment, both sides of the third lens are spherical.

第四實施例 Fourth embodiment

第5A圖係為本發明廣角鏡頭之第四具體實施例之透鏡組合圖，表七和八為第四具體實施例的數據資料，第5B圖為本發明廣角鏡頭之第四具體實施例的光學效果，其中，第5B圖中的各圖表分別表示廣角鏡頭的球面像差、場曲、畸變及橫向色差。 5A is a lens assembly diagram of a fourth embodiment of the wide-angle lens of the present invention, Tables 7 and 8 are data materials of the fourth embodiment, and FIG. 5B is an optical effect of the fourth embodiment of the wide-angle lens of the present invention. Here, each of the graphs in FIG. 5B represents spherical aberration, curvature of field, distortion, and lateral chromatic aberration of the wide-angle lens, respectively.

由上述表一、三、五及七可知，本發明之廣角鏡頭的光圈值FNO可達2.0以上，而視角可達80°以上。 As can be seen from the above Tables 1, 3, 5 and 7, the wide-angle lens of the present invention has an aperture value FNO of 2.0 or more and a viewing angle of 80 or more.

下列表九用以顯示前述第一、二、三及四實施例的數據比較。 Table IX below shows the data comparison of the first, second, third and fourth embodiments described above.

由上述表九的比較及第2B、3B、4B及5B圖可知，本發明之廣角鏡頭包括五個透鏡，於一較佳實施例中，該些透鏡滿足以下條件：、、、及V 3>50，其中，該f 1、f 2、f 3、f 4、f 5分別為該第一、第二、第三、第四及第五透鏡的焦距，該N 3為該第三透鏡的折射率，該R 6及R 7分別為該第三透鏡之朝物側的一面和朝像側的一面之曲率半徑，該f為該廣角鏡頭的整體焦距，該f 12為該第一和第二透鏡的合成焦距該V 3為該第三透鏡的阿貝數。 From the comparison of Table 9 above and the figures 2B, 3B, 4B and 5B, the wide-angle lens of the present invention comprises five lenses. In a preferred embodiment, the lenses satisfy the following conditions: , , , And V 3 >50, wherein the f 1 , f 2 , f 3 , f 4 , and f 5 are focal lengths of the first, second, third, fourth, and fifth lenses, respectively, and the N 3 is the first a refractive index of the three lenses, wherein R 6 and R 7 are respectively a radius of curvature of a side of the third lens facing the object side and a side of the image side, wherein f is an overall focal length of the wide-angle lens, and the f 12 is the first And a composite focal length of the second lens, the V 3 being the Abbe number of the third lens.

因此，本發明之廣角鏡頭可獲得良好的像差、色差校正及畸變校正，並可獲得較大的視角，可應用於數位相機、數位攝影機或手機等之具有攝影鏡頭的電子設備。 Therefore, the wide-angle lens of the present invention can obtain good aberration, chromatic aberration correction, and distortion correction, and can obtain a large viewing angle, and can be applied to an electronic device having a photographic lens such as a digital camera, a digital camera, or a mobile phone.

上述實施形態僅例示性說明本發明之原理及功效，而非用於限制本發明。任何熟習此項技術之人士均可在不違背本發明之技術思想下，對上述實施形態進行修飾與改變。因此，本發明之權利保護範圍應如後述之申請專利範圍所列。 The above embodiments are merely illustrative of the principles and effects of the invention and are not intended to limit the invention. Modifications and variations of the above-described embodiments can be made by those skilled in the art without departing from the spirit of the invention. Therefore, the scope of protection of the present invention should be as set forth in the appended claims.

ax‧‧‧光軸 Ax‧‧‧ optical axis

CG‧‧‧感光元件保護玻璃 CG‧‧‧Photosensitive element protection glass

Im‧‧‧受光面 Im‧‧‧Stained surface

IR‧‧‧濾光鏡 IR‧‧‧Filter

L01‧‧‧第一透鏡 L01‧‧‧ first lens

L02‧‧‧第二透鏡 L02‧‧‧second lens

L03‧‧‧第三透鏡 L03‧‧‧ third lens

L04‧‧‧第四透鏡 L04‧‧‧4th lens

L05‧‧‧第五透鏡 L05‧‧‧ fifth lens

ST‧‧‧光圈 ST‧‧‧ aperture

Claims (12)

一種廣角鏡頭，從物側至像側依序包括：第一透鏡，係具有負折射力；第二透鏡，係具有正折射力；第三透鏡，係具有正折射力；第四透鏡，係具有負折射力；及第五透鏡；該廣角鏡頭係滿足以下條件：以及，其中，該f 1、f 2、f 3、f 4、f 5分別為該第一、第二、第三、第四及第五透鏡的焦距，該N 3為該第三透鏡的折射率，該R 6及R 7分別為該第三透鏡之朝物側的一面和朝像側的一面之曲率半徑，其中，該廣角鏡頭之畸變的範圍在-2%~2%。 A wide-angle lens includes, in order from the object side to the image side, a first lens having a negative refractive power, a second lens having a positive refractive power, a third lens having a positive refractive power, and a fourth lens having a negative Refractive force; and a fifth lens; the wide-angle lens meets the following conditions: as well as Wherein f 1 , f 2 , f 3 , f 4 , f 5 are focal lengths of the first, second, third, fourth, and fifth lenses, respectively, and N 3 is a refractive index of the third lens The R 6 and the R 7 are respectively a radius of curvature of one side of the third lens toward the object side and a side of the image side, wherein the distortion of the wide-angle lens ranges from -2% to 2%. 如申請專利範圍第1項所述之廣角鏡頭，其中，該廣角鏡頭更滿足以下條件： The wide-angle lens according to claim 1, wherein the wide-angle lens further satisfies the following conditions: 如申請專利範圍第1或2項所述之廣角鏡頭，其中，該廣角鏡頭更滿足以下條件：，其中，該f為該廣角鏡頭的整體焦距，該f 12為該第一和第二透鏡的合成焦距。 The wide-angle lens according to claim 1 or 2, wherein the wide-angle lens further satisfies the following conditions: Where f is the overall focal length of the wide-angle lens, and f 12 is the composite focal length of the first and second lenses. 如申請專利範圍第1項所述之廣角鏡頭，其中，該第 三透鏡滿足以下條件V 3>50，其中，該V 3為該第三透鏡的阿貝數。 The wide-angle lens of claim 1, wherein the third lens satisfies the following condition V 3 >50, wherein the V 3 is an Abbe number of the third lens. 如申請專利範圍第4項所述之廣角鏡頭，其中，該第三透鏡的材質為玻璃或塑膠。 The wide-angle lens of claim 4, wherein the third lens is made of glass or plastic. 如申請專利範圍第1項所述之廣角鏡頭，其中，該第一透鏡之至少一面、第二透鏡之至少一面、第四透鏡之至少一面和第五透鏡之至少一面為非球面。 The wide-angle lens according to claim 1, wherein at least one surface of the first lens, at least one surface of the second lens, at least one surface of the fourth lens, and at least one surface of the fifth lens are aspherical surfaces. 如申請專利範圍第1項所述之廣角鏡頭，其中，該第三透鏡之兩面皆為球面、或兩面皆為非球面、或其中一面為球面而另一面為非球面。 The wide-angle lens according to claim 1, wherein the third lens has a spherical surface on both sides, or both surfaces are aspherical, or one of the surfaces is a spherical surface and the other surface is aspherical. 如申請專利範圍第1項所述之廣角鏡頭，其中，該第五透鏡具有負折射力。 The wide-angle lens of claim 1, wherein the fifth lens has a negative refractive power. 如申請專利範圍第1項所述之廣角鏡頭，其中，該第五透鏡具有正折射力。 The wide-angle lens of claim 1, wherein the fifth lens has a positive refractive power. 如申請專利範圍第1項所述之廣角鏡頭，其中，該第二透鏡和第三透鏡之間係設置有光圈。 The wide-angle lens of claim 1, wherein an aperture is disposed between the second lens and the third lens. 如申請專利範圍第1項所述之廣角鏡頭，其中，該第一透鏡和第二透鏡之間係設置有光圈。 The wide-angle lens of claim 1, wherein an aperture is disposed between the first lens and the second lens. 如申請專利範圍第1項所述之廣角鏡頭，其中，該第三透鏡和第四透鏡之間係設置有光圈。 The wide-angle lens of claim 1, wherein an aperture is disposed between the third lens and the fourth lens.
TW102103448A 2013-01-30 2013-01-30 Wide-angle lens TWI521236B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW102103448A TWI521236B (en) 2013-01-30 2013-01-30 Wide-angle lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW102103448A TWI521236B (en) 2013-01-30 2013-01-30 Wide-angle lens

Publications (2)

Publication Number Publication Date
TW201430375A TW201430375A (en) 2014-08-01
TWI521236B true TWI521236B (en) 2016-02-11

Family

ID=51796856

Family Applications (1)

Application Number Title Priority Date Filing Date
TW102103448A TWI521236B (en) 2013-01-30 2013-01-30 Wide-angle lens

Country Status (1)

Country Link
TW (1) TWI521236B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105425369A (en) * 2015-08-10 2016-03-23 玉晶光电(厦门)有限公司 Optical imaging lens
CN111239963B (en) * 2018-11-29 2022-02-15 宁波舜宇车载光学技术有限公司 Optical lens and imaging apparatus

Also Published As

Publication number Publication date
TW201430375A (en) 2014-08-01

Similar Documents

Publication Publication Date Title
TWI519810B (en) Wide angle optical lens system
JP5823527B2 (en) Imaging lens and imaging device provided with imaging lens
TWI510806B (en) Optical image capturing system
JP5687390B2 (en) Imaging lens and imaging device provided with imaging lens
CN103123413B (en) Wide-angle lens
WO2012132456A1 (en) Image pickup lens and image pickup device
JP5937036B2 (en) Imaging lens and imaging device provided with imaging lens
TWM483431U (en) Imaging lens and imaging apparatus including the imaging lens
TWM484709U (en) Imaging lens and imaging apparatus including the imaging lens
WO2012172781A1 (en) Imaging lens and imaging device provided with same
JP2005284153A (en) Imaging lens
TWM487440U (en) Imaging lens and imaging apparatus including the imaging lens
TWM464678U (en) Imaging lenses and imaging device including the same
WO2014155465A1 (en) Image pickup lens and image pickup device provided with image pickup lens
TWM500897U (en) Imaging lens and imaging apparatus equipped with the imaging lens
TWM496770U (en) Imaging lens and imaging device provided with the same
TWM486776U (en) Imaging lens and imaging apparatus including the imaging lens
TWM471598U (en) Photographic lens and photographic apparatus thereof
CN203773139U (en) Imaging lens and imaging device comprising imaging lens
TWM487441U (en) Imaging lens and imaging apparatus including the imaging lens
TWM473523U (en) Photographic lens and photographic apparatus thereof
TWI645215B (en) Five-piece optical lens system with a wide field of view
TWM486065U (en) Imaging lens and imaging apparatus including the imaging lens
JP6711360B2 (en) Imaging lens
TWM455167U (en) Wide-angle lens