TW201627714A - Optical lens assembly - Google Patents
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本發明大致上關於一種光學鏡片組。具體而言，本發明特別是指一種具有較短鏡頭長度之光學鏡片組，而主要用於拍攝影像及錄影，並應用於手持式電子產品，例如：行動電話、相機、平板電腦、車用攝影裝置、或是個人數位助理（Personal Digital Assistant, PDA）中。The present invention generally relates to an optical lens set. Specifically, the present invention particularly refers to an optical lens set having a shorter lens length, and is mainly used for capturing images and video, and is applied to handheld electronic products such as mobile phones, cameras, tablets, and car photography. Device, or Personal Digital Assistant (PDA).
近年來，手機和數位相機的普及使得攝影模組（包含光學鏡片組、座體及影像感應器等）蓬勃發展，手機和數位相機的薄型輕巧化也讓攝影模組的小型化需求愈來愈高，隨著感光耦合元件（Charge Coupled Device, CCD）或互補性氧化金屬半導體元件（Complementary Metal-Oxide Semiconductor, CMOS）之技術進步和尺寸縮小，裝載在攝影模組中的光學鏡片組也需要縮小體積，但光學鏡片組之良好光學性能也是必要顧及之處。In recent years, the popularity of mobile phones and digital cameras has made photography modules (including optical lens sets, seats and image sensors) flourish, and the thinness and lightness of mobile phones and digital cameras have made the demand for miniaturization of photography modules more and more. High, with the technological advancement and downsizing of the Charge Coupled Device (CCD) or Complementary Metal-Oxide Semiconductor (CMOS), the optical lens set loaded in the photographic module also needs to be reduced. Volume, but the good optical performance of the optical lens set is also a must.
可攜式電子產品的規格日新月異，其關鍵零組件-光學鏡片組也更加多樣化發展，應用不只僅限於拍攝影像與錄影，還加上環境監視、行車紀錄攝影等，且隨著影像感測技術之進步，消費者對於成像品質等的要求也更加提高。因此光學鏡片組的設計不僅需求好的成像品質、較小的鏡頭空間，對於因應行車與光線不足的環境，視場角與光圈大小的提升也是須考量之課題。因此極需要開發一種成像品質良好且鏡頭長度縮短的鏡頭。The specifications of portable electronic products are changing with each passing day, and the key components-optical lens sets are also more diversified. Applications are not limited to shooting images and video, but also environmental monitoring, driving record photography, etc., and with image sensing technology. With the advancement, consumers' requirements for image quality and so on have also increased. Therefore, the design of the optical lens group not only requires good image quality, but also a small lens space. For the environment where the driving and the light are insufficient, the improvement of the field of view and the aperture size is also a subject to be considered. Therefore, it is extremely desirable to develop a lens with good imaging quality and a shortened lens length.
光學鏡片組設計並非單純將成像品質佳的鏡頭等比例縮小就能製作出兼具成像品質與微型化的光學鏡片組，設計過程牽涉到材料特性，還必須考量到製作、組裝良率等生產面的實際問題。所以微型化鏡頭的技術難度明顯高出傳統鏡頭，因此如何製作出符合行車與光線不足環境的攝像鏡頭，並持續提升其成像品質並縮小攝像鏡頭的長度，一直是業界持續精進的目標。The design of the optical lens group is not only to reduce the size of the lens with good imaging quality, but also to produce an optical lens group with both image quality and miniaturization. The design process involves material properties, and the production surface such as production and assembly yield must be considered. The actual problem. Therefore, the technical difficulty of the miniaturized lens is significantly higher than that of the conventional lens. Therefore, how to make an imaging lens that conforms to the environment of driving and low light, and continuously improve the imaging quality and reduce the length of the imaging lens has been the continuous goal of the industry.
於是，本發明提出一種縮減光學鏡頭之系統長度、維持足夠之光學性能、以及擴大視場角的六片式光學鏡片組。本發明六片式光學鏡片組從物側至像側，在光軸上依序安排有光圈、第一透鏡、第二透鏡、第三透鏡、第四透鏡、第五透鏡以及第六透鏡。第一透鏡、第二透鏡、第三透鏡、第四透鏡、第五透鏡以及第六透鏡都分別具有朝向物側的物側面以及朝向像側的像側面。本光學鏡片組只有此六片具有屈光率的透鏡。Accordingly, the present invention provides a six-piece optical lens set that reduces the length of the optical lens system, maintains sufficient optical performance, and expands the field of view. In the six-piece optical lens group of the present invention, from the object side to the image side, an aperture, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens are sequentially arranged on the optical axis. Each of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, and the sixth lens has an object side surface facing the object side and an image side surface facing the image side. The optical lens group has only these six lenses having refractive power.
本發明在第一方面所提供之光學鏡片組，第一透鏡具有屈光率，其物側面及其像側面至少其中一者為非球面。第二透鏡具有屈光率，其像側面具有位於圓周附近區域的凹面部，其物側面及其像側面至少其中一者為非球面。第三透鏡的物側面具有位於圓周附近區域的凹面部，其像側面具有位於光軸附近區域的凸面部。第四透鏡的像側面具有位於光軸附近區域的凸面部，其物側面及其像側面至少其中一者為非球面。第五透鏡具有正屈光率，其物側面具有位於光軸附近區域的凸面部，其物側面及其像側面皆為非球面。第六透鏡的物側面具有位於光軸附近區域的凸面部與位於圓周附近區域的凸面部，其物側面及其像側面皆為非球面。第一透鏡在光軸上的中心厚度為T1 、第二透鏡在光軸上的中心厚度為T2 、第三透鏡在光軸上的中心厚度為T3 、第四透鏡在光軸上的中心厚度為T4 、第六透鏡在光軸上的中心厚度為T6 ，而滿足(T1 +T2 +T3 +T4 )/T6 ≦4.0。In the optical lens set provided by the first aspect of the invention, the first lens has a refractive power, and at least one of the object side surface and the image side surface thereof is aspherical. The second lens has a refractive power, and the image side surface has a concave portion located in the vicinity of the circumference, and at least one of the object side surface and the image side surface thereof is aspherical. The object side surface of the third lens has a concave surface portion in the vicinity of the circumference, and the image side surface thereof has a convex surface located in the vicinity of the optical axis. The image side surface of the fourth lens has a convex portion located in the vicinity of the optical axis, and at least one of the object side surface and the image side surface thereof is aspherical. The fifth lens has a positive refractive power, and the object side surface has a convex surface located in the vicinity of the optical axis, and the object side surface and the image side surface thereof are all aspherical surfaces. The object side surface of the sixth lens has a convex portion located in the vicinity of the optical axis and a convex portion located in the vicinity of the circumference, and the object side surface and the image side surface thereof are all aspherical surfaces. The center thickness of the first lens on the optical axis is T 1 , the center thickness of the second lens on the optical axis is T 2 , the center thickness of the third lens on the optical axis is T 3 , and the fourth lens is on the optical axis. The center thickness is T 4 , and the center thickness of the sixth lens on the optical axis is T 6 , and satisfies (T 1 + T 2 + T 3 + T 4 ) / T 6 ≦ 4.0.
在本發明光學鏡片組中，又滿足(T3 +T6 )/T1 ≦1.9。In the optical lens group of the present invention, (T 3 + T 6 ) / T 1 ≦ 1.9 is again satisfied.
在本發明光學鏡片組中，第五透鏡在光軸上的中心厚度為T5 ，而滿足(T3 +T6 )/T5 ≦2.1。In the optical lens group of the present invention, the center thickness of the fifth lens on the optical axis is T 5 and satisfies (T 3 + T 6 ) / T 5 ≦ 2.1.
在本發明光學鏡片組中，G12 為第一透鏡到第二透鏡之間空氣間隙寬度，而滿足(T3 +T6 )/G12 ≦8.0。In the optical lens group of the present invention, G 12 is an air gap width between the first lens and the second lens, and satisfies (T 3 + T 6 ) / G 12 ≦ 8.0.
在本發明光學鏡片組中，G34 為第三透鏡到第四透鏡之間空氣間隙的寬度，而滿足(T3 +T6 )/G34 ≦2.8。In the optical lens group of the present invention, G 34 is the width of the air gap between the third lens and the fourth lens, and satisfies (T 3 + T 6 ) / G 34 ≦ 2.8.
在本發明光學鏡片組中，G56 為第五透鏡到第六透鏡在光軸上的空氣間隙，而滿足(T3 +T6 )/G56 ≦3.3。In the optical lens group of the present invention, G 56 is an air gap of the fifth lens to the sixth lens on the optical axis, and satisfies (T 3 + T 6 ) / G 56 ≦ 3.3.
在本發明光學鏡片組中，G12 為第一透鏡到第二透鏡之間空氣間隙寬度、G23 為第二透鏡到第三透鏡之間空氣間隙寬度，而滿足(T3 +T6 )/(G12 +G23 )≦1.8。In the optical lens group of the present invention, G 12 is an air gap width between the first lens and the second lens, and G 23 is an air gap width between the second lens and the third lens, and satisfies (T 3 + T 6 )/ (G 12 + G 23 ) ≦ 1.8.
在本發明光學鏡片組中，G23 為第二透鏡到第三透鏡之間空氣間隙寬度、G56 為第五透鏡到第六透鏡在光軸上的空氣間隙，而滿足(T3 +T6 )/(G23 +G56 )≦1.4。In the optical lens group of the present invention, G 23 is an air gap width between the second lens and the third lens, and G 56 is an air gap of the fifth lens to the sixth lens on the optical axis, and satisfies (T 3 + T 6 ) / (G 23 + G 56 ) ≦ 1.4.
在本發明光學鏡片組中，又滿足(T3 +T6 )/T2 ≦3.8。In the optical lens group of the present invention, (T 3 + T 6 ) / T 2 ≦ 3.8 is again satisfied.
在本發明光學鏡片組中，G12 為第一透鏡到第二透鏡之間空氣間隙寬度，而滿足(T4 +T6 )/G12 ≦5.5。In the optical lens group of the present invention, G 12 is an air gap width between the first lens and the second lens, and satisfies (T 4 + T 6 ) / G 12 ≦ 5.5.
本發明在第二方面所提供之光學鏡片組，第一透鏡具有屈光率，其物側面及其像側面至少其中一者為非球面。第二透鏡具有屈光率，其像側面具有位於圓周附近區域的凹面部，其物側面及其像側面至少其中一者為非球面。第三透鏡的物側面具有位於圓周附近區域的凹面部，其像側面具有位於光軸附近區域的凸面部。第四透鏡的像側面具有位於光軸附近區域的凸面部，其物側面及其像側面至少其中一者為非球面。第五透鏡，具有正屈光率，其物側面具有位於光軸附近區域的凸面部，其像側面具有位於光軸附近區域的凹面部，其物側面及其像側面皆為非球面。第六透鏡的物側面具有位於圓周附近區域的凸面部，其物側面及其像側面皆為非球面。第一透鏡在光軸上的中心厚度為T1 、第二透鏡在光軸上的中心厚度為T2 、第三透鏡在光軸上的中心厚度為T3 、第四透鏡在光軸上的中心厚度為T4 、第六透鏡在光軸上的中心厚度為T6 ，而滿足(T1 +T2 +T3 +T4 )/T6 ≦4.0。In the optical lens set provided by the second aspect of the invention, the first lens has a refractive power, and at least one of the object side surface and the image side surface thereof is aspherical. The second lens has a refractive power, and the image side surface has a concave portion located in the vicinity of the circumference, and at least one of the object side surface and the image side surface thereof is aspherical. The object side surface of the third lens has a concave surface portion in the vicinity of the circumference, and the image side surface thereof has a convex surface located in the vicinity of the optical axis. The image side surface of the fourth lens has a convex portion located in the vicinity of the optical axis, and at least one of the object side surface and the image side surface thereof is aspherical. The fifth lens has a positive refractive power, and the object side surface has a convex portion located in the vicinity of the optical axis, and the image side surface has a concave surface located in the vicinity of the optical axis, and the object side surface and the image side surface thereof are all aspherical surfaces. The object side surface of the sixth lens has a convex surface located in the vicinity of the circumference, and the object side surface and the image side surface thereof are all aspherical surfaces. The center thickness of the first lens on the optical axis is T 1 , the center thickness of the second lens on the optical axis is T 2 , the center thickness of the third lens on the optical axis is T 3 , and the fourth lens is on the optical axis. The center thickness is T 4 , and the center thickness of the sixth lens on the optical axis is T 6 , and satisfies (T 1 + T 2 + T 3 + T 4 ) / T 6 ≦ 4.0.
在本發明光學鏡片組中，又滿足(T3 +T6 )/T1 ≦1.9。In the optical lens group of the present invention, (T 3 + T 6 ) / T 1 ≦ 1.9 is again satisfied.
在本發明光學鏡片組中，第五透鏡在光軸上的中心厚度為T5 ，而滿足(T3 +T6 )/T5 ≦2.1。In the optical lens group of the present invention, the center thickness of the fifth lens on the optical axis is T 5 and satisfies (T 3 + T 6 ) / T 5 ≦ 2.1.
在本發明光學鏡片組中，G23 為第二透鏡到第三透鏡之間空氣間隙寬度，而滿足(T4 +T6 )/G23 ≦1.8。In the optical lens group of the present invention, G 23 is an air gap width between the second lens and the third lens, and satisfies (T 4 + T 6 ) / G 23 ≦ 1.8.
在本發明光學鏡片組中，G34 為第三透鏡到第四透鏡之間空氣間隙的寬度，而滿足(T4 +T6 )/G34 ≦1.8。In the optical lens group of the present invention, G 34 is the width of the air gap between the third lens and the fourth lens, and satisfies (T 4 + T 6 ) / G 34 ≦ 1.8.
在本發明光學鏡片組中，G56 為第五透鏡到第六透鏡在光軸上的空氣間隙，而滿足(T4 +T6 )/G56 ≦2.5。In the optical lens group of the present invention, G 56 is an air gap of the fifth lens to the sixth lens on the optical axis, and satisfies (T 4 + T 6 ) / G 56 ≦ 2.5.
在本發明光學鏡片組中，G12 為第一透鏡到第二透鏡之間空氣間隙寬度，而滿足T3 /G12 ≦2.9。In the optical lens group of the present invention, G 12 is an air gap width between the first lens and the second lens, and satisfies T 3 /G 12 ≦2.9.
在本發明光學鏡片組中，G12 為第一透鏡到第二透鏡之間空氣間隙寬度，而滿足T4 /G12 ≦2.6。In the optical lens group of the present invention, G 12 is the air gap width between the first lens and the second lens, and satisfies T 4 /G 12 ≦2.6.
在本發明光學鏡片組中，第五透鏡在光軸上的中心厚度為T5 、G12 為第一透鏡到第二透鏡之間空氣間隙寬度，而滿足T5 /G12 ≦3.6。In the optical lens group of the present invention, the center thickness of the fifth lens on the optical axis is T 5 , and G 12 is the air gap width between the first lens and the second lens, and satisfies T 5 /G 12 ≦ 3.6.
在本發明光學鏡片組中，G12 為第一透鏡到第二透鏡之間空氣間隙寬度，而滿足T6 /G12 ≦2.7。In the optical lens group of the present invention, G 12 is an air gap width between the first lens and the second lens, and satisfies T 6 /G 12 ≦2.7.
在開始詳細描述本發明之前，首先要說明的是，在本發明圖式中，類似的元件是以相同的編號來表示。其中，本篇說明書所言之「一透鏡具有正屈光率（或負屈光率）」，是指所述透鏡以高斯光學理論計算出來之光軸上的屈光率為正（或為負）。該像側面、物側面定義為成像光線通過的範圍，其中成像光線包括了主光線（chief ray）Lc及邊緣光線（marginal ray）Lm，如圖1所示，I為光軸且此一透鏡是以該光軸I為對稱軸徑向地相互對稱，光線通過光軸上的區域為光軸附近區域A，邊緣光線通過的區域為圓周附近區域C，此外，該透鏡還包含一延伸部E（即圓周附近區域C徑向上向外的區域），用以供該透鏡組裝於一光學鏡片組內，理想的成像光線並不會通過該延伸部E，但該延伸部E之結構與形狀並不限於此，以下之實施例為求圖式簡潔均省略了部分的延伸部。更詳細的說，判定面形或光軸附近區域、圓周附近區域、或多個區域的範圍的方法如下：Before the present invention is described in detail, it is to be noted that in the drawings of the present invention, similar elements are denoted by the same reference numerals. Here, "a lens having a positive refractive power (or a negative refractive power)" as used in this specification means that the refractive index of the lens on the optical axis calculated by Gaussian optical theory is positive (or negative). ). The image side and the object side are defined as a range through which the imaging light passes, wherein the imaging light includes a chief ray Lc and a marginal ray Lm, as shown in FIG. 1, I is an optical axis and the lens is The optical axis I is symmetric with respect to each other in a radial direction. The region of the light passing through the optical axis is the region A near the optical axis, the region through which the edge light passes is the region C near the circumference, and the lens further includes an extension E ( That is, the radially outward region of the region C near the circumference, for the lens to be assembled in an optical lens group, the ideal imaging light does not pass through the extension portion E, but the structure and shape of the extension portion E are not In this regard, the following embodiments omits portions of the extensions for simplicity of the drawing. In more detail, the method of determining the area near the surface or the optical axis, the area near the circumference, or the range of the plurality of areas is as follows:
請參照圖1，其係一透鏡徑向上的剖視圖。以該剖視圖觀之，在判斷前述區域的範圍時，定義一中心點為該透鏡表面上與光軸的一交點，而一轉換點是位於該透鏡表面上的一點，且通過該點的一切線與光軸垂直。如果徑向上向外有複數個轉換點，則依序為第一轉換點，第二轉換點，而有效半效徑上距光軸徑向上最遠的轉換點為第N轉換點。中心點和第一轉換點之間的範圍為光軸附近區域，第N轉換點徑向上向外的區域為圓周附近區域，中間可依各轉換點區分不同的區域。此外，有效半徑為邊緣光線Lm與透鏡表面交點到光軸I上的垂直距離。Please refer to FIG. 1, which is a cross-sectional view of a lens in the radial direction. In the cross-sectional view, when determining the range of the region, a center point is defined as an intersection with the optical axis on the surface of the lens, and a transition point is a point on the surface of the lens, and the line passing through the point It is perpendicular to the optical axis. If there are a plurality of transition points outward in the radial direction, the first transition point and the second transition point are sequentially, and the transition point farthest from the optical axis in the effective half-effect path is the Nth transition point. The range between the center point and the first transition point is a region near the optical axis, and the radially outward region of the Nth transition point is a region near the circumference, and different regions can be distinguished according to the respective transition points. Further, the effective radius is the vertical distance at which the edge ray Lm intersects the lens surface to the optical axis I.
如圖2所示，該區域的形狀凹凸係以平行通過該區域的光線(或光線延伸線)與光軸的交點在像側或物側來決定(光線焦點判定方式)。舉例言之，當光線通過該區域後，光線會朝像側聚焦，與光軸的焦點會位在像側，例如圖2中R點，則該區域為凸面部。反之，若光線通過該某區域後，光線會發散，其延伸線與光軸的焦點在物側，例如圖2中M點，則該區域為凹面部，所以中心點到第一轉換點間為凸面部，第一轉換點徑向上向外的區域為凹面部；由圖2可知，該轉換點即是凸面部轉凹面部的分界點，因此可定義該區域與徑向上相鄰該區域的內側的區域，係以該轉換點為分界具有不同的面形。另外，若是光軸附近區域的面形判斷可依該領域中通常知識者的判斷方式，以R值(指近軸的曲率半徑，通常指光學軟體中的透鏡資料庫(lens data)上的R值)正負判斷凹凸。以物側面來說，當R值為正時，判定為凸面部，當R值為負時，判定為凹面部；以像側面來說，當R值為正時，判定為凹面部，當R值為負時，判定為凸面部，此方法判定出的凹凸和光線焦點判定方式相同。若該透鏡表面上無轉換點，該光軸附近區域定義為有效半徑的0~50%，圓周附近區域定義為有效半徑的50~100%。As shown in FIG. 2, the shape concavities and convexities of the region are determined on the image side or the object side by the intersection of the light rays (or the light ray extending lines) passing through the region in parallel with the optical axis (the light focus determination method). For example, when the light passes through the area, the light will be focused toward the image side, and the focus of the optical axis will be on the image side, such as the R point in FIG. 2, and the area is a convex surface. Conversely, if the light passes through the certain area, the light will diverge, and the extension line and the focus of the optical axis are on the object side. For example, at point M in Fig. 2, the area is a concave surface, so the center point is between the first transition point. The convex portion, the radially outward portion of the first switching point is a concave surface; as can be seen from FIG. 2, the switching point is a boundary point of the convex surface of the convex surface, so that the inner side of the region adjacent to the radial direction can be defined. The area has a different face shape with the transition point as a boundary. In addition, if the shape of the region near the optical axis is judged according to the judgment of the person in the field, the R value (referring to the radius of curvature of the paraxial axis, generally refers to the R on the lens data in the optical software). Value) Positive and negative judgment bump. In the aspect of the object, when the R value is positive, it is determined as a convex surface, and when the R value is negative, it is determined as a concave surface; on the image side, when the R value is positive, it is determined as a concave surface, when R is When the value is negative, it is determined as a convex surface, and the unevenness determined by this method is the same as the light focus determination method. If there is no transition point on the surface of the lens, the area near the optical axis is defined as 0~50% of the effective radius, and the area near the circumference is defined as 50~100% of the effective radius.
圖3範例一的透鏡像側表面在有效半徑上僅具有第一轉換點，則第一區為光軸附近區域，第二區為圓周附近區域。此透鏡像側面的R值為正，故判斷光軸附近區域具有一凹面部；圓周附近區域的面形和徑向上緊鄰該區域的內側區域不同。即，圓周附近區域和光軸附近區域的面形不同；該圓周附近區域係具有一凸面部。The lens image side surface of the first example of Fig. 3 has only the first transition point on the effective radius, the first region is the vicinity of the optical axis, and the second region is the region near the circumference. The R value of the side of the lens image is positive, so that the area near the optical axis has a concave surface; the surface shape of the vicinity of the circumference is different from the inner area of the area immediately adjacent to the radial direction. That is, the area near the circumference and the area near the optical axis are different; the area near the circumference has a convex surface.
圖4範例二的透鏡物側表面在有效半徑上具有第一及第二轉換點，則第一區為光軸附近區域，第三區為圓周附近區域。此透鏡物側面的R值為正，故判斷光軸附近區域為凸面部；第一轉換點與第二轉換點間的區域(第二區)具有一凹面部，圓周附近區域(第三區)具有一凸面部。The lens object side surface of the example 2 of FIG. 4 has first and second switching points on the effective radius, and the first region is a region near the optical axis, and the third region is a region near the circumference. The R value of the side surface of the lens object is positive, so that the area near the optical axis is determined to be a convex surface; the area between the first switching point and the second switching point (second area) has a concave surface, and the area near the circumference (third area) Has a convex face.
圖5範例三的透鏡物側表面在有效半徑上無轉換點，此時以有效半徑0%~50%為光軸附近區域，50%~100%為圓周附近區域。由於光軸附近區域的R值為正，故此物側面在光軸附近區域具有一凸面部；而圓周附近區域與光軸附近區域間無轉換點，故圓周附近區域具有一凸面部。The lens side surface of the third example of Fig. 5 has no transition point on the effective radius. At this time, the effective radius 0%~50% is the vicinity of the optical axis, and 50%~100% is the vicinity of the circumference. Since the R value in the vicinity of the optical axis is positive, the side surface of the object has a convex portion in the vicinity of the optical axis; and there is no transition point between the vicinity of the circumference and the vicinity of the optical axis, so that the vicinity of the circumference has a convex portion.
如圖6所示，本發明光學鏡片組1，從放置物體（圖未示）的物側2至成像的像側3，沿著光軸（optical axis）4，依序包含有光圈80、第一透鏡10、第二透鏡20、第三透鏡30、第四透鏡40、第五透鏡50、第六透鏡60、濾光片70及成像面（image plane）71。一般說來，第一透鏡10、第二透鏡20、第三透鏡30、第四透鏡40、第五透鏡50、第六透鏡60都可以是由透明的塑膠材質所製成，但本發明不以此為限。在本發明光學鏡片組1中，具有屈光率的鏡片總共只有第一透鏡10、第二透鏡20、第三透鏡30、第四透鏡40、第五透鏡50、第六透鏡60等這六片透鏡而已。光軸4為整個光學鏡片組1的光軸，所以每個透鏡的光軸和光學鏡片組1的光軸都是相同的。As shown in FIG. 6, the optical lens group 1 of the present invention includes an aperture 80, an optical aperture 40 from the object side 2 of the placed object (not shown) to the image side 3 of the image, along the optical axis 4. A lens 10, a second lens 20, a third lens 30, a fourth lens 40, a fifth lens 50, a sixth lens 60, a filter 70, and an image plane 71. In general, the first lens 10, the second lens 20, the third lens 30, the fourth lens 40, the fifth lens 50, and the sixth lens 60 may all be made of a transparent plastic material, but the present invention does not This is limited. In the optical lens group 1 of the present invention, the lens having the refractive index has only six sheets of the first lens 10, the second lens 20, the third lens 30, the fourth lens 40, the fifth lens 50, and the sixth lens 60. Lens only. The optical axis 4 is the optical axis of the entire optical lens group 1, so that the optical axis of each lens and the optical axis of the optical lens group 1 are the same.
此外，光學鏡片組1還包含光圈（aperture stop）80，而設置於適當之位置。在圖6中，光圈80是設置在物側2與第一透鏡10之間。當由位於物側2之待拍攝物（圖未示）所發出的光線（圖未示）進入本發明光學鏡片組1時，即會經由光圈80、第一透鏡10、第二透鏡20、第三透鏡30、第四透鏡40、第五透鏡50、第六透鏡60與濾光片70之後，會在像側3的成像面71上聚焦而形成清晰的影像。在本發明各實施例中，選擇性設置的濾光片70還可以是具各種合適功能之濾鏡，可濾除特定波長的光線（例如紅外線），設於第六透鏡60的朝向像側的一面62與成像面71之間。Further, the optical lens group 1 further includes an aperture stop 80 and is disposed at an appropriate position. In FIG. 6, the aperture 80 is disposed between the object side 2 and the first lens 10. When the light (not shown) emitted by the object to be photographed (not shown) on the object side 2 enters the optical lens group 1 of the present invention, the aperture 80, the first lens 10, the second lens 20, and the After the three lenses 30, the fourth lens 40, the fifth lens 50, the sixth lens 60, and the filter 70, they are focused on the imaging surface 71 of the image side 3 to form a clear image. In various embodiments of the present invention, the selectively disposed filter 70 may also be a filter having various suitable functions for filtering out light of a specific wavelength (for example, infrared rays), and is disposed on the image side of the sixth lens 60. One side 62 is between the image plane 71.
本發明光學鏡片組1中之各個透鏡，都分別具有朝向物側2的物側面，與朝向像側3的像側面。另外，本發明光學鏡片組1中之各個透鏡，亦都具有接近光軸4的光軸附近區域、與遠離光軸4的圓周附近區域。例如，第一透鏡10具有第一物側面11與第一像側面12；第二透鏡20具有第二物側面21與第二像側面22；第三透鏡30具有第三物側面31與第三像側面32；第四透鏡40具有第四物側面41與第四像側面42；第五透鏡50具有第五物側面51與第五像側面52；第六透鏡60具有第六物側面61與第六像側面62。Each of the lenses in the optical lens group 1 of the present invention has an object side surface facing the object side 2 and an image side surface facing the image side 3. Further, each of the lenses in the optical lens group 1 of the present invention also has a region near the optical axis close to the optical axis 4 and a region near the circumference away from the optical axis 4. For example, the first lens 10 has a first object side surface 11 and a first image side surface 12; the second lens 20 has a second object side surface 21 and a second image side surface 22; and the third lens 30 has a third object side surface 31 and a third image side Side surface 32; fourth lens 40 has fourth object side surface 41 and fourth image side surface 42; fifth lens 50 has fifth object side surface 51 and fifth image side surface 52; sixth lens 60 has sixth object side surface 61 and sixth Like the side 62.
本發明光學鏡片組1中之各個透鏡，還都分別具有位在光軸4上的中心厚度T。例如，第一透鏡10具有第一透鏡厚度T1 、第二透鏡20具有第二透鏡厚度T2 、第三透鏡30具有第三透鏡厚度T3 、第四透鏡40具有第四透鏡厚度T4 、第五透鏡50具有第五透鏡厚度T5 、第六透鏡60具有第六透鏡厚度T6 。所以，在光軸4上光學鏡片組1中透鏡的中心厚度總合稱為ALT。亦即，ALT =T1 + T2 + T3 + T4 + T5 + T6 。Each of the lenses in the optical lens set 1 of the present invention also has a center thickness T on the optical axis 4, respectively. For example, the first lens 10 has a first lens thickness T 1 , the second lens 20 has a second lens thickness T 2 , the third lens 30 has a third lens thickness T 3 , and the fourth lens 40 has a fourth lens thickness T 4 , The fifth lens 50 has a fifth lens thickness T 5 and the sixth lens 60 has a sixth lens thickness T 6 . Therefore, the central thickness of the lens in the optical lens group 1 on the optical axis 4 is collectively referred to as ALT. That is, ALT = T 1 + T 2 + T 3 + T 4 + T 5 + T 6 .
另外，本發明光學鏡片組1中在各個透鏡之間又具有位在光軸4上的空氣間隙（air gap）。例如，第一透鏡10到第二透鏡20之間空氣間隙寬度稱為G12 、第二透鏡20到第三透鏡30之間空氣間隙寬度稱為G23 、第三透鏡30到第四透鏡40之間空氣間隙寬度稱為G34 、第四透鏡40到第五透鏡50之間空氣間隙寬度稱為G45 、第五透鏡50到第六透鏡60之間空氣間隙寬度稱為G56 。所以，第一透鏡10到第六透鏡60之間位於光軸4上各透鏡間之五個空氣間隙寬度之總合即稱為AAG。亦即，AAG = G12 +G23 +G34 + G45 +G56 。Further, in the optical lens group 1 of the present invention, an air gap located on the optical axis 4 is again provided between the respective lenses. For example, the air gap width between the first lens 10 and the second lens 20 is referred to as G 12 , and the air gap width between the second lens 20 and the third lens 30 is referred to as G 23 , and the third lens 30 to the fourth lens 40 are The gap between the air gaps is referred to as G 34 , the width of the air gap between the fourth lens 40 and the fifth lens 50 is referred to as G 45 , and the width of the air gap between the fifth lens 50 and the sixth lens 60 is referred to as G 56 . Therefore, the sum of the five air gap widths between the lenses on the optical axis 4 between the first lens 10 and the sixth lens 60 is called AAG. That is, AAG = G 12 + G 23 + G 34 + G 45 + G 56 .
另外，第一透鏡10的物側面11至成像面71在光軸上的長度為TTL。光學鏡片組的有效焦距為EFL，第六透鏡60的第六像側面62至成像面71在光軸4上的長度為BFL。In addition, the length of the object side surface 11 to the imaging surface 71 of the first lens 10 on the optical axis is TTL. The effective focal length of the optical lens group is EFL, and the length of the sixth image side surface 62 to the imaging surface 71 of the sixth lens 60 on the optical axis 4 is BFL.
另外，再定義： f1為第一透鏡10的焦距；f2為第二透鏡20的焦距；f3為第三透鏡30的焦距；f4為第四透鏡40的焦距；f5為第五透鏡50的焦距；f6為第六透鏡60的焦距；n1為第一透鏡10的折射率；n2為第二透鏡20的折射率；n3為第三透鏡30的折射率；n4為第四透鏡40的折射率；n5為第五透鏡50的折射率；n6為第六透鏡60的折射率；υ1為第一透鏡10的阿貝係數(Abbe number)；υ2為第二透鏡20的阿貝係數；υ3為第三透鏡30的阿貝係數；υ4為第四透鏡10的阿貝係數；υ5為第五透鏡50的阿貝係數；及υ6為第六透鏡60的阿貝係數。In addition, it is further defined that f1 is the focal length of the first lens 10; f2 is the focal length of the second lens 20; f3 is the focal length of the third lens 30; f4 is the focal length of the fourth lens 40; f5 is the focal length of the fifth lens 50; F6 is the focal length of the sixth lens 60; n1 is the refractive index of the first lens 10; n2 is the refractive index of the second lens 20; n3 is the refractive index of the third lens 30; n4 is the refractive index of the fourth lens 40; n5 The refractive index of the fifth lens 50; n6 is the refractive index of the sixth lens 60; υ1 is the Abbe number of the first lens 10; υ2 is the Abbe number of the second lens 20; υ3 is the third lens Abbe's coefficient of 30; υ4 is the Abbe's coefficient of the fourth lens 10; υ5 is the Abbe's coefficient of the fifth lens 50; and υ6 is the Abbe's coefficient of the sixth lens 60.
第一實施例First embodiment
請參閱圖6，例示本發明光學鏡片組1的第一實施例。第一實施例在成像面71上的縱向球差（longitudinal spherical aberration）請參考圖7A、弧矢（sagittal）方向的像散像差（astigmatic field aberration）請參考圖7B、子午（tangential）方向的像散像差請參考圖7C、以及畸變像差（distortion aberration）請參考圖7D。所有實施例中各球差圖之Y軸代表視場，其最高點均為1.0，實施例中各像散圖及畸變圖之Y軸代表像高，系統像高為3.413公厘。Referring to Figure 6, a first embodiment of the optical lens assembly 1 of the present invention is illustrated. For the longitudinal spherical aberration on the imaging surface 71 of the first embodiment, please refer to FIG. 7A, the astigmatic field aberration in the sagittal direction, please refer to FIG. 7B and the tangential direction. Refer to Figure 7C for astigmatic aberrations and distortion aberration for reference. See Figure 7D. In all the embodiments, the Y-axis of each of the spherical aberration diagrams represents the field of view, and the highest point is 1.0. In the embodiment, the astigmatism of the astigmatism and the distortion diagram represents the image height, and the system image height is 3.413 mm.
第一實施例之光學鏡片組系統1主要由六枚具有屈光率之透鏡、濾光片70、光圈80、與成像面71所構成。光圈80是設置在物側2與第一透鏡10之間。濾光片70可以防止特定波長的光線（例如紅外線）投射至成像面而影響成像品質。The optical lens group system 1 of the first embodiment is mainly composed of six lenses having a refractive power, a filter 70, a diaphragm 80, and an imaging surface 71. The aperture 80 is disposed between the object side 2 and the first lens 10. The filter 70 can prevent light of a specific wavelength (for example, infrared rays) from being projected onto an image plane to affect image quality.
第一透鏡10具有正屈光率。朝向物側2的第一物側面11具有位於光軸附近區域的凸面部13以及位於圓周附近區域的凸面部14，朝向像側3的第一像側面12具有位於光軸附近區域的凹面部16以及位於圓周附近區域的凸面部17。第一透鏡之物側面11及像側面12其中至少一者為非球面。The first lens 10 has a positive refractive power. The first object side surface 11 facing the object side 2 has a convex portion 13 located in the vicinity of the optical axis and a convex portion 14 located in the vicinity of the circumference, and the first image side surface 12 facing the image side 3 has the concave portion 16 located in the vicinity of the optical axis. And a convex portion 17 located in the vicinity of the circumference. At least one of the object side surface 11 and the image side surface 12 of the first lens is aspherical.
第二透鏡20具有負屈光率。朝向物側2的第二物側面21具有位於光軸附近區域的凸面部23以及位於圓周附近區域的凹面部24，朝向像側3的第二像側面22具有位於光軸附近區域的凹面部26以及位於圓周附近區域的凹面部27。第二透鏡20之物側面21及像側面22其中至少一者為非球面。The second lens 20 has a negative refractive power. The second object side surface 21 facing the object side 2 has a convex portion 23 located in the vicinity of the optical axis and a concave portion 24 located in the vicinity of the circumference, and the second image side 22 facing the image side 3 has the concave portion 26 located in the vicinity of the optical axis. And a concave portion 27 located in the vicinity of the circumference. At least one of the object side surface 21 and the image side surface 22 of the second lens 20 is aspherical.
第三透鏡30具有正屈光率，朝向物側2的第三物側面31具有位於光軸附近區域的凸面部33以及位於圓周附近區域的凹面部34，而朝向像側3的第三像側面32具有位於光軸附近區域的凸面部36以及在圓周附近的凸面部37。第三透鏡30之物側面31及像側面32其中至少一者為非球面。The third lens 30 has a positive refractive power, and the third object side surface 31 facing the object side 2 has a convex portion 33 located in the vicinity of the optical axis and a concave portion 34 located in the vicinity of the circumference, and the third image side facing the image side 3 32 has a convex portion 36 located in the vicinity of the optical axis and a convex portion 37 in the vicinity of the circumference. At least one of the object side surface 31 and the image side surface 32 of the third lens 30 is aspherical.
第四透鏡40具有負屈光率，朝向物側2的第四物側面41具有位於光軸附近區域的凹面部43以及位於圓周附近區域的凹面部44，而朝向像側3的第四像側面42具有位於光軸附近區域的凸面部46以及在圓周附近的凸面部47。第四透鏡40之物側面41及像側面42其中至少一者為非球面。The fourth lens 40 has a negative refractive power, and the fourth object side surface 41 facing the object side 2 has a concave portion 43 located in the vicinity of the optical axis and a concave portion 44 located in the vicinity of the circumference, and the fourth image side facing the image side 3 42 has a convex portion 46 located in the vicinity of the optical axis and a convex portion 47 in the vicinity of the circumference. At least one of the object side surface 41 and the image side surface 42 of the fourth lens 40 is aspherical.
第五透鏡50具有正屈光率，物側2的第五物側面51具有位於光軸附近區域的凸面部53以及位在圓周附近的凹面部54，朝向像側3的第五像側面52具有位於光軸附近區域的凹面部56以及位於圓周附近區域的凸面部57。另外，第五物側面51與第五像側面52均為非球面。The fifth lens 50 has a positive refractive power, and the fifth object side surface 51 of the object side 2 has a convex portion 53 located in the vicinity of the optical axis and a concave portion 54 positioned near the circumference, and the fifth image side surface 52 facing the image side 3 has A concave portion 56 located in a region near the optical axis and a convex portion 57 located in the vicinity of the circumference. Further, the fifth object side surface 51 and the fifth image side surface 52 are both aspherical.
第六透鏡60具有負屈光率，朝向物側2的第六物側面61具有位於光軸附近區域的凸面部63以及位於圓周附近區域的凸面部64，朝向像側3的第六像側面62具有位於光軸附近區域的凹面部66以及位於圓周附近區域的凸面部67。另外，第六物側面61與第六像側面62均為非球面。濾光片70位於第六透鏡60的第六像側面62以及成像面71之間。The sixth lens 60 has a negative refractive power, and the sixth object side surface 61 facing the object side 2 has a convex portion 63 located in the vicinity of the optical axis and a convex portion 64 located in the vicinity of the circumference, and a sixth image side surface 62 facing the image side 3. There is a concave portion 66 located in the vicinity of the optical axis and a convex portion 67 located in the vicinity of the circumference. Further, the sixth object side surface 61 and the sixth image side surface 62 are both aspherical surfaces. The filter 70 is located between the sixth image side surface 62 of the sixth lens 60 and the imaging surface 71.
在本發明光學鏡片組1中，從第一透鏡10到第六透鏡60中，所有物側面11/21/31/41/51/61與像側面12/22/32/42/52/62共計十二個曲面。若為非球面，則此等非球面係經由下列公式所定義： In the optical lens group 1 of the present invention, from the first lens 10 to the sixth lens 60, the total side 11/21/31/41/51/61 and the image side 12/22/32/42/52/62 Twelve surfaces. If aspherical, these aspherical surfaces are defined by the following formula:
其中：among them:
R表示透鏡表面之曲率半徑；R represents the radius of curvature of the surface of the lens;
Z表示非球面之深度（非球面上距離光軸為Y的點，其與相切於非球面光軸上頂點之切面，兩者間的垂直距離）；Z represents the depth of the aspherical surface (the point on the aspherical surface that is Y from the optical axis, and the tangent plane that is tangent to the vertex on the aspherical optical axis, the vertical distance between the two);
Y表示非球面曲面上的點與光軸的垂直距離；Y represents the vertical distance between the point on the aspherical surface and the optical axis;
K為圓錐係數（conic constant）；K is a conic constant;
ai 為第i階非球面係數。a i is the i-th order aspheric coefficient.
第一實施例光學透鏡系統的光學數據如圖24所示，非球面數據如圖25所示。在以下實施例之光學透鏡系統中，整體光學透鏡系統的光圈值（f-number）為Fno、有效焦距為（F）、半視角（Half Field of View，簡稱HFOV）為整體光學透鏡系統中最大視角（Field of View）的一半，又曲率半徑、厚度及焦距的單位均為公厘（mm）。而Fno為2.0497，系統像高為3.413公厘，HFOV為37.4916 度。The optical data of the optical lens system of the first embodiment is as shown in Fig. 24, and the aspherical data is as shown in Fig. 25. In the optical lens system of the following embodiments, the aperture value (f-number) of the integral optical lens system is Fno, the effective focal length is (F), and the Half Field of View (HFOV) is the largest in the overall optical lens system. Half of the Field of View, and the unit of curvature radius, thickness, and focal length are in millimeters (mm). The Fno is 2.0497, the system image height is 3.413 mm, and the HFOV is 37.4916 degrees.
本發明第一實施例的系統長度已有效縮短，仍能有效克服色像差並提供較佳的成像品質，故本案第一實施例能在維持良好光學性能之條件下，達到縮短鏡頭長度之效果。The system length of the first embodiment of the present invention has been effectively shortened, and the chromatic aberration can be effectively overcome and the image quality is better. Therefore, the first embodiment of the present invention can achieve the effect of shortening the lens length under the condition of maintaining good optical performance. .
第二實施例Second embodiment
請參閱圖8，例示本發明光學鏡片組1的第二實施例。請注意，從第二實施例開始，為簡化並清楚表達圖式，僅在圖上特別標示各透鏡與第一實施例不同之面型，而其餘與第一實施例的透鏡相同的面型，例如凹面部或是凸面部則不另外標示。第二實施例在成像面71上的縱向球差請參考圖9A、弧矢方向的像散像差請參考圖9B、子午方向的像散像差請參考圖9C、畸變像差請參考圖9D。第二實施例之設計與第一實施例類似，僅曲率半徑、透鏡屈光率、透鏡曲率半徑、透鏡厚度、透鏡非球面係數或是後焦距等相關參數有別。特別是：1.第二實施例的鏡頭長度TTL比第一實施例短。2.第二實施例比第一實施例易於製造因此良率較高。Referring to Figure 8, a second embodiment of the optical lens assembly 1 of the present invention is illustrated. It is to be noted that, from the second embodiment, in order to simplify and clearly express the drawings, only the faces of the lenses different from the first embodiment are specifically indicated on the drawings, and the remaining faces of the lenses of the first embodiment are For example, a concave or convex surface is not otherwise marked. For the longitudinal spherical aberration on the imaging surface 71 of the second embodiment, please refer to FIG. 9A, the astigmatic aberration in the sagittal direction, and FIG. 9B, the astigmatic aberration in the meridional direction, refer to FIG. 9C, and the distortion aberration, refer to FIG. 9D. . The design of the second embodiment is similar to that of the first embodiment, and only relevant parameters such as radius of curvature, lens refractive power, lens curvature radius, lens thickness, lens aspheric coefficient or back focus are different. In particular: 1. The lens length TTL of the second embodiment is shorter than that of the first embodiment. 2. The second embodiment is easier to manufacture than the first embodiment and thus has a higher yield.
第二實施例詳細的光學數據如圖26所示，非球面數據如圖27所示。系統像高為3.413公厘，Fno為2.0497，HFOV為37.4916度。The detailed optical data of the second embodiment is shown in Fig. 26, and the aspherical data is as shown in Fig. 27. The system image height is 3.413 mm, Fno is 2.0497, and HFOV is 37.4916 degrees.
第三實施例Third embodiment
請參閱圖10，例示本發明光學鏡片組1的第三實施例。第三實施例在成像面71上的縱向球差請參考圖11A、弧矢方向的像散像差請參考圖11B、子午方向的像散像差請參考圖11C、畸變像差請參考圖11D。第三實施例之設計與第一實施例類似，僅曲率半徑、透鏡屈光率、透鏡曲率半徑、透鏡厚度、透鏡非球面係數或是後焦距等相關參數有別，以及：第一透鏡10的第一像側面12具有位於圓周附近區域的凹面部17’。特別是：1.第三實施例的鏡頭長度TTL比第一實施例短。2.第三實施例的成像品質優於第一實施例。3.第三實施例比第一實施例易於製造因此良率較高。Referring to Figure 10, a third embodiment of the optical lens assembly 1 of the present invention is illustrated. For the longitudinal spherical aberration on the imaging surface 71 of the third embodiment, please refer to FIG. 11A, the astigmatic aberration in the sagittal direction, and FIG. 11B, the astigmatic aberration in the meridional direction, refer to FIG. 11C, and the distortion aberration, refer to FIG. 11D. . The design of the third embodiment is similar to that of the first embodiment, and only relevant parameters such as radius of curvature, lens refractive power, lens curvature radius, lens thickness, lens aspherical coefficient or back focal length are different, and: the first lens 10 The first image side surface 12 has a concave portion 17' located in the vicinity of the circumference. In particular: 1. The lens length TTL of the third embodiment is shorter than that of the first embodiment. 2. The imaging quality of the third embodiment is superior to that of the first embodiment. 3. The third embodiment is easier to manufacture than the first embodiment, so the yield is higher.
第三實施例詳細的光學數據如圖28所示，非球面數據如圖29所示，系統像高為3.413公厘，Fno為2.0497，HFOV為37.4916度。The detailed optical data of the third embodiment is shown in Fig. 28. The aspherical data is as shown in Fig. 29. The system image height is 3.413 mm, the Fno is 2.0497, and the HFOV is 37.4916 degrees.
第四實施例Fourth embodiment
請參閱圖12，例示本發明光學鏡片組1的第四實施例。第四實施例在成像面71上的縱向球差請參考圖13A、弧矢方向的像散像差請參考圖13B、子午方向的像散像差請參考圖13C、畸變像差請參考圖13D。第四實施例之設計與第一實施例類似，僅曲率半徑、透鏡屈光率、透鏡曲率半徑、透鏡厚度、透鏡非球面係數或是後焦距等相關參數有別，以及：第一透鏡10的第一像側面12具有位於圓周附近區域的凹面部17’。特別是：第四實施例比第一實施例易於製造因此良率較高。Referring to Figure 12, a fourth embodiment of the optical lens assembly 1 of the present invention is illustrated. For the longitudinal spherical aberration on the imaging surface 71 of the fourth embodiment, please refer to FIG. 13A, the astigmatic aberration in the sagittal direction, and FIG. 13B, the astigmatic aberration in the meridional direction, refer to FIG. 13C, and the distortion aberration, refer to FIG. 13D. . The design of the fourth embodiment is similar to that of the first embodiment, and only relevant parameters such as radius of curvature, lens refractive power, lens curvature radius, lens thickness, lens aspherical coefficient or back focal length are different, and: the first lens 10 The first image side surface 12 has a concave portion 17' located in the vicinity of the circumference. In particular: the fourth embodiment is easier to manufacture than the first embodiment and thus has a higher yield.
第四實施例詳細的光學數據如圖30所示，非球面數據如圖31所示，系統像高為3.413公厘，Fno為2.0497，HFOV為37.4916度。The detailed optical data of the fourth embodiment is shown in Fig. 30, and the aspherical data is as shown in Fig. 31. The system image height is 3.413 mm, Fno is 2.0497, and HFOV is 37.4916 degrees.
第五實施例Fifth embodiment
請參閱圖14，例示本發明光學鏡片組1的第五實施例。第五實施例在成像面71上的縱向球差請參考圖15A、弧矢方向的像散像差請參考圖15B、子午方向的像散像差請參考圖15C、畸變像差請參考圖15D。第五實施例之設計與第一實施例類似，僅曲率半徑、透鏡屈光率、透鏡曲率半徑、透鏡厚度、透鏡非球面係數或是後焦距等相關參數有別。特別是：1.第五實施例的鏡頭長度TTL比第一實施例短。2.第五實施例的成像品質優於第一實施例。3.第五實施例比第一實施例易於製造因此良率較高。Referring to Figure 14, a fifth embodiment of the optical lens assembly 1 of the present invention is illustrated. For the longitudinal spherical aberration on the imaging surface 71 of the fifth embodiment, please refer to FIG. 15A, the astigmatic aberration in the sagittal direction, and FIG. 15B, the astigmatic aberration in the meridional direction, refer to FIG. 15C, and the distortion aberration, refer to FIG. 15D. . The design of the fifth embodiment is similar to that of the first embodiment, and only relevant parameters such as radius of curvature, lens refractive power, lens curvature radius, lens thickness, lens aspherical coefficient or back focus are different. In particular: 1. The lens length TTL of the fifth embodiment is shorter than that of the first embodiment. 2. The imaging quality of the fifth embodiment is superior to that of the first embodiment. 3. The fifth embodiment is easier to manufacture than the first embodiment, and thus the yield is higher.
第五實施例詳細的光學數據如圖32所示，非球面數據如圖33所示，系統像高為3.413公厘，Fno為2.0497，HFOV為37.4916 度。The detailed optical data of the fifth embodiment is shown in Fig. 32, and the aspherical data is as shown in Fig. 33. The system image height is 3.413 mm, Fno is 2.0497, and HFOV is 37.4916 degrees.
第六實施例Sixth embodiment
請參閱圖16，例示本發明光學鏡片組1的第六實施例。第六實施例在成像面71上的縱向球差請參考圖17A、弧矢方向的像散像差請參考圖17B、子午方向的像散像差請參考圖17C、畸變像差請參考圖17D。第六實施例之設計與第一實施例類似，不同之處在於，僅曲率半徑、透鏡屈光率、透鏡曲率半徑、透鏡厚度、透鏡非球面係數或是後焦距等相關參數有別，以及：第一透鏡10的第一像側面12具有位於圓周附近區域的凹面部17’。特別是：第六實施例比第一實施例易於製造因此良率較高。Referring to Figure 16, a sixth embodiment of the optical lens assembly 1 of the present invention is illustrated. For the longitudinal spherical aberration on the imaging surface 71 of the sixth embodiment, please refer to FIG. 17A, the astigmatic aberration in the sagittal direction, and FIG. 17B, the astigmatic aberration in the meridional direction, refer to FIG. 17C, and the distortion aberration, refer to FIG. 17D. . The design of the sixth embodiment is similar to that of the first embodiment except that only relevant parameters such as radius of curvature, lens power, lens radius of curvature, lens thickness, lens aspherical coefficient or back focus are different, and: The first image side surface 12 of the first lens 10 has a concave surface portion 17' located in the vicinity of the circumference. In particular: the sixth embodiment is easier to manufacture than the first embodiment, and thus the yield is high.
第六實施例詳細的光學數據如圖34所示，非球面數據如圖35所示，系統像高為3.413公厘，Fno為2.0497，HFOV為37.4916 度。The detailed optical data of the sixth embodiment is shown in Fig. 34, and the aspherical data is as shown in Fig. 35. The system image height is 3.413 mm, Fno is 2.0497, and HFOV is 37.4916 degrees.
第七實施例Seventh embodiment
請參閱圖18，例示本發明光學鏡片組1的第七實施例。第七實施例在成像面71上的縱向球差請參考圖19A、弧矢方向的像散像差請參考圖19B、子午方向的像散像差請參考圖19C、畸變像差請參考圖19D。第七實施例之設計與第一實施例類似，僅曲率半徑、透鏡屈光率、透鏡曲率半徑、透鏡厚度、透鏡非球面係數或是後焦距等相關參數有別。特別是：1.第七實施例的成像品質優於第一實施例。2.第七實施例比第一實施例易於製造因此良率較高。Referring to Figure 18, a seventh embodiment of the optical lens assembly 1 of the present invention is illustrated. Please refer to FIG. 19A for the longitudinal spherical aberration on the imaging surface 71 of the seventh embodiment, FIG. 19B for the astigmatic aberration in the sagittal direction, FIG. 19C for the astigmatic aberration in the meridional direction, and FIG. 19D for the distortion aberration. . The design of the seventh embodiment is similar to that of the first embodiment, and only relevant parameters such as radius of curvature, lens refractive power, lens curvature radius, lens thickness, lens aspherical coefficient or back focus are different. In particular: 1. The imaging quality of the seventh embodiment is superior to that of the first embodiment. 2. The seventh embodiment is easier to manufacture than the first embodiment, so the yield is higher.
第七實施例詳細的光學數據如圖36所示，非球面數據如圖37所示，系統像高為3.413公厘，Fno為2.0497，HFOV為37.4916度。The detailed optical data of the seventh embodiment is shown in Fig. 36, and the aspherical data is as shown in Fig. 37. The system image height is 3.413 mm, Fno is 2.0497, and HFOV is 37.4916 degrees.
第八實施例Eighth embodiment
請參閱圖20，例示本發明光學鏡片組1的第八實施例。第八實施例在成像面71上的縱向球差請參考圖21A、弧矢方向的像散像差請參考圖21B、子午方向的像散像差請參考圖21C、畸變像差請參考圖21D。第八實施例之設計與第一實施例類似，僅曲率半徑、透鏡屈光率、透鏡曲率半徑、透鏡厚度、透鏡非球面係數或是後焦距等相關參數有別，以及：第一透鏡10的第一像側面12具有位於圓周附近區域的凹面部17’。特別是：第八實施例比第一實施例易於製造因此良率較高。Referring to Figure 20, an eighth embodiment of the optical lens assembly 1 of the present invention is illustrated. For the longitudinal spherical aberration on the imaging surface 71 of the eighth embodiment, please refer to FIG. 21A, the astigmatic aberration in the sagittal direction, and FIG. 21B, the astigmatic aberration in the meridional direction, refer to FIG. 21C, and the distortion aberration, refer to FIG. 21D. . The design of the eighth embodiment is similar to that of the first embodiment, and only relevant parameters such as radius of curvature, lens refractive power, lens curvature radius, lens thickness, lens aspherical coefficient or back focal length are different, and: the first lens 10 The first image side surface 12 has a concave portion 17' located in the vicinity of the circumference. In particular: the eighth embodiment is easier to manufacture than the first embodiment, and thus the yield is high.
第八實施例詳細的光學數據如圖38所示，非球面數據如圖39所示，系統像高為3.413公厘，Fno為2.0497，HFOV為37.4916 度。The detailed optical data of the eighth embodiment is shown in Fig. 38, and the aspherical data is as shown in Fig. 39. The system image height is 3.413 mm, the Fno is 2.0497, and the HFOV is 37.4916 degrees.
另外，各實施例之重要參數則整理於圖40中。其中G6F代表第六透鏡60到濾光片70之間在光軸4上的間隙寬度、TF代表濾光片70在光軸4上的厚度、GFP代表濾光片70到成像面71之間在光軸4上的間隙寬度、BFL為第六透鏡60的第六像側面62到成像面71在光軸4上的距離、即BFL=G6F+TF+GFP。In addition, important parameters of the respective embodiments are organized in FIG. Wherein G6F represents the gap width between the sixth lens 60 and the filter 70 on the optical axis 4, TF represents the thickness of the filter 70 on the optical axis 4, and GFP represents between the filter 70 and the imaging surface 71. The gap width on the optical axis 4, BFL is the distance from the sixth image side surface 62 of the sixth lens 60 to the imaging surface 71 on the optical axis 4, that is, BFL = G6F + TF + GFP.
申請人發現，本案的透鏡配置，具有以下的特徵，以及可以達成的對應功效：Applicant found that the lens configuration of this case has the following characteristics, and the corresponding effects that can be achieved:
1. 具有屈光率的第一透鏡搭配具有屈光率的第二透鏡與其像側圓周區域為凹面，易於修正第一透鏡產生的像差。第三透鏡物側圓周區域為凹面且像側光軸區域為凸面，與第四透鏡像側光軸區域為凸面有利於修正前二鏡片產生的像差。第五透鏡的正屈光率，物側光軸區域為凸面且像側光軸區域為凹面，則有利於微調前四鏡片修正後的像差。第六透鏡物側光軸區域為凸面且物側圓周區域為凸面，則有利於修正前五鏡片的像差。1. The first lens having the refractive power is matched with the second lens having the refractive power and the image side circumferential area thereof is concave, and it is easy to correct the aberration generated by the first lens. The third lens object side circumferential area is a concave surface and the image side optical axis area is a convex surface, and the fourth lens image side optical axis area is convex, which is advantageous for correcting the aberration generated by the first two lenses. The positive refractive power of the fifth lens is such that the object-side optical axis region is convex and the image-side optical axis region is concave, which is advantageous for fine-tuning the aberration after the correction of the first four lenses. The optical axis region of the sixth lens object is convex and the circumferential region of the object side is convex, which is advantageous for correcting the aberration of the first five lenses.
2. 第一透鏡至第四透鏡的物側面或是像側面其中之至少一面為非球面，易於協助修正光學鏡片組整體的彗差（comatic aberration）、像散（astigmatism）、場曲（field curvature）、畸變（distortion）與離軸色差（off-axis chromatic aberration）…等等。第五透鏡與第六透鏡之物側面及像側面皆為非球面，有利於修正主要的彗差、像散、場曲、畸變與離軸色差。光圈位置因為必須考量很多透鏡面形、透鏡厚度及透鏡間空氣間隙等多組參數的配合，而在此設計前述各鏡片之特性又須考量光學鏡片組的光學特性與鏡頭長度。舉例來說：第一透鏡具有屈光率可有效增加聚光能力，搭配光圈位置設置在第一透鏡之物側面之前，有助於增加可用光圈與降低光圈值，因此光圈的位置設計有其特別意義。2. The object side or the image side of the first lens to the fourth lens is aspherical, which is easy to assist in correcting the coma aberration, astigmatism, field curvature of the entire optical lens group. ), distortion and off-axis chromatic aberration...etc. Both the object side and the image side of the fifth lens and the sixth lens are aspherical, which is advantageous for correcting main coma, astigmatism, curvature of field, distortion and off-axis chromatic aberration. The position of the aperture must be considered in combination with many sets of parameters such as lens shape, lens thickness and air gap between the lenses. In view of the characteristics of the aforementioned lenses, the optical characteristics and lens length of the optical lens group must be considered. For example, the first lens has a refractive power to effectively increase the concentrating ability, and the position of the aperture is set before the side of the object of the first lens, which helps to increase the available aperture and lower the aperture value, so the position design of the aperture has its special significance.
此外，透過以下各參數之數值控制，可協助設計者設計出具備良好光學性能、整體長度有效縮短、拍攝角度大、光圈值降低、且技術上可行之光學鏡片組。同時，可協助控制透鏡或是空氣間隙之厚度，使其維持適當之比例，以避免任一透鏡厚度過大而不利於鏡頭整體之薄型化，或是避免任一透鏡厚度過小而不利於鏡頭整體之組裝及製造。不同參數之比例有較佳之範圍，例如：In addition, through the numerical control of the following parameters, the designer can assist the designer to design an optical lens set with good optical performance, effective shortening of the overall length, large shooting angle, reduced aperture value, and technical feasibility. At the same time, it can help control the thickness of the lens or air gap to maintain an appropriate ratio to avoid any lens thickness is too large to facilitate the thinning of the lens as a whole, or to avoid any lens thickness is too small to facilitate the overall lens. Assembly and manufacturing. The ratio of different parameters has a better range, for example:
1. 當滿足(T1 +T2 +T3 +T4 )/T6 ≦4.0，有助於增加第六透鏡的厚度以利於修正前四鏡片所產生的像差，此外限制第六透鏡厚度不至過薄以提升良率。較佳地，當滿足2.6≦(T1 +T2 +T3 +T4 )/T6 ≦4.0，使得前四片的厚度不至過小而降低製造上的良率，或第六透鏡過厚增加整體鏡頭長度。1. When (T 1 + T 2 + T 3 + T 4 ) / T 6 ≦ 4.0 is satisfied, it helps to increase the thickness of the sixth lens to facilitate correction of the aberration generated by the first four lenses, and further limits the thickness of the sixth lens. Not too thin to increase yield. Preferably, when 2.6 ≦(T 1 +T 2 +T 3 +T 4 )/T 6 ≦4.0 is satisfied, the thickness of the first four sheets is not too small to lower the yield on the manufacturing, or the sixth lens is too thick. Increase the overall lens length.
2. 當滿足(T3 +T6 )/T1 ≦1.9，有助於增加第一透鏡的厚度，使得厚度不至過薄，以利於在光圈後收聚光線。較佳地，當滿足0.8≦(T3 +T6 )/T1 ≦1.9，使得第三透鏡與第六透鏡的厚度不至過小而降低了製造上的良率，或是使得第一透鏡過厚而增加整體鏡頭長度。2. When (T 3 + T 6 ) / T 1 ≦ 1.9 is satisfied, it helps to increase the thickness of the first lens so that the thickness is not too thin to facilitate the collection of light after the aperture. Preferably, when 0.8 ≦(T 3 +T 6 )/T 1 ≦1.9 is satisfied, the thickness of the third lens and the sixth lens is not too small to lower the manufacturing yield, or the first lens is passed Thick and increase the overall lens length.
3. 當滿足(T3 +T6 )/T5 ≦2.1，有助於增加第五透鏡的厚度，使得其厚度不至過薄，以利於修正前四枚透鏡所產生的像差。較佳地，當滿足0.8≦(T3 +T6 )/T5 ≦2.1，使得第三透鏡與第六透鏡的厚度不至過小而降低製造上的良率，或使得第五透鏡過厚而增加整體鏡頭長度。3. When (T 3 + T 6 ) / T 5 ≦ 2.1 is satisfied, it helps to increase the thickness of the fifth lens so that its thickness is not too thin to facilitate the correction of the aberration generated by the first four lenses. Preferably, when 0.8 ≦(T 3 +T 6 )/T 5 ≦2.1 is satisfied, the thickness of the third lens and the sixth lens is not too small to reduce the manufacturing yield, or the fifth lens is too thick. Increase the overall lens length.
4. 當滿足(T3 +T6 )/T2 ≦3.8，有助於限制第二透鏡厚度不至過薄以提升良率。較佳地，當滿足2.3≦(T3 +T6 )/T2 ≦3.8，使得第三透鏡與第六透鏡的厚度不至過小而降低製造上的良率，或第二透鏡過厚使負屈光率降低。4. When (T 3 + T 6 ) / T 2 ≦ 3.8 is satisfied, it helps to limit the thickness of the second lens to not too thin to improve the yield. Preferably, when 2.3 ≦(T 3 +T 6 )/T 2 ≦3.8 is satisfied, the thickness of the third lens and the sixth lens is not too small to reduce the yield on the manufacturing, or the second lens is too thick to make the negative The refractive index is reduced.
5. 對於參數群(T3 +T6 )/G12 ≦8.0、(T3 +T6 )/G34 ≦2.8、(T3 +T6 )/G56 ≦3.3、(T3 +T6 )/(G12 +G23 )≦1.8、(T3 +T6 )/(G23 +G56 )≦1.4、(T4 +T6 )/G12 ≦5.5、(T4 +T6 )/G23 ≦1.8、(T4 +T6 )/G34 ≦1.8、(T4 +T6 )/G56 ≦2.5、T3 /G12 ≦2.9、T4 /G12 ≦2.6、T5 /G12 ≦3.6、T6 /G12 ≦2.7等的比例，其較佳地限制為3.0≦(T3 +T6 )/G12 ≦8.0、1.6≦(T3 +T6 )/G34 ≦2.8、1.8≦(T3 +T6 )/G56 ≦3.3、0.9≦(T3 +T6 )/(G12 +G23 )≦1.8、0.7≦(T3 +T6 )/(G23 +G56 )≦1.4、1.2≦(T4 +T6 )/G12 ≦5.5、1.0≦(T4 +T6 )/G23 ≦1.8、0.6≦(T4 +T6 )/G34 ≦1.8、1.15≦(T4 +T6 )/G56 ≦2.5、2.35≦T3 /G12 ≦2.9、0.5≦T4 /G12 ≦2.6、1.7≦T5 /G12 ≦3.6、0.6≦T6 /G12 ≦2.7，目的為使各透鏡的厚度與間隙維持在一適當範圍內，避免任一參數過大而不利於本發明光學鏡片組1整體之薄型化。或是，避免任一參數過小而影響鏡頭組裝，或是提高了製造上之困難度。5. For the parameter group (T 3 +T 6 )/G 12 ≦8.0, (T 3 +T 6 )/G 34 ≦2.8, (T 3 +T 6 )/G 56 ≦3.3, (T 3 +T 6 ) / (G 12 + G 23 ) ≦ 1.8, (T 3 + T 6 ) / (G 23 + G 56 ) ≦ 1.4, (T 4 + T 6 ) / G 12 ≦ 5.5, (T 4 + T 6 ) /G 23 ≦1.8, (T 4 +T 6 )/G 34 ≦1.8, (T 4 +T 6 )/G 56 ≦2.5, T 3 /G 12 ≦2.9, T 4 /G 12 ≦2.6, T 5 /G 12 ≦ 3.6, T 6 /G 12 ≦ 2.7, etc., which is preferably limited to 3.0 ≦ (T 3 + T 6 ) / G 12 ≦ 8.0, 1.6 ≦ (T 3 + T 6 ) / G 34 ≦2.8, 1.8≦(T 3 +T 6 )/G 56 ≦3.3, 0.9≦(T 3 +T 6 )/(G 12 +G 23 )≦1.8, 0.7≦(T 3 +T 6 )/(G 23 + G 56 ) ≦ 1.4, 1.2 ≦ (T 4 + T 6 ) / G 12 ≦ 5.5, 1.0 ≦ (T 4 + T 6 ) / G 23 ≦ 1.8, 0.6 ≦ (T 4 + T 6 ) / G 34 ≦1.8, 1.15≦(T 4 +T 6 )/G 56 ≦2.5, 2.35≦T 3 /G 12 ≦2.9,0.5≦T 4 /G 12 ≦2.6,1.7≦T 5 /G 12 ≦3.6, 0.6≦ T 6 /G 12 ≦2.7, the purpose is to maintain the thickness and the gap of each lens within an appropriate range, avoiding any parameter being too large to facilitate the thinning of the optical lens set 1 of the present invention as a whole. Or, avoid any parameters that are too small to affect the lens assembly, or increase the difficulty of manufacturing.
有鑑於光學系統設計的不可預測性，在本發明的架構之下，符合上述條件式能較佳地使本發明光學鏡片組長度縮短、可用光圈增大、視場角增加、成像品質提升，或組裝良率提升而改善先前技術的缺點。前述所列之例示性限定關係式，亦可任意選擇性地合併不等數量而施用於本發明之實施態樣中，並不限於此。In view of the unpredictability of the optical system design, under the framework of the present invention, the above conditional expression can preferably shorten the length of the optical lens set of the present invention, increase the available aperture, increase the angle of view, and improve the image quality, or The assembly yield is improved to improve the shortcomings of the prior art. The exemplary defined relationship listed above may also be applied to the embodiment of the present invention arbitrarily and unequally, and is not limited thereto.
本發明之光學鏡片組1，還可應用於電子裝置中，例如應用於行動電話或是行車紀綠器。請參閱圖22，其為應用前述光學鏡片組1的電子裝置100的第一較佳實施例。電子裝置100包含機殼110，及安裝在機殼110內的影像模組120。圖22僅以行動電話為例，說明電子裝置100，但電子裝置100的型式不以此為限。The optical lens set 1 of the present invention can also be applied to an electronic device, for example, to a mobile phone or a traveling green device. Please refer to FIG. 22, which is a first preferred embodiment of the electronic device 100 to which the optical lens assembly 1 described above is applied. The electronic device 100 includes a casing 110 and an image module 120 mounted in the casing 110. FIG. 22 illustrates the electronic device 100 only by taking a mobile phone as an example, but the type of the electronic device 100 is not limited thereto.
如圖22中所示，影像模組120包括如前所述的光學鏡片組1。圖22例示前述第一實施例之光學鏡片組1。此外，電子裝置100另包含用於供光學鏡片組1設置的鏡筒130、用於供鏡筒130設置的模組後座單元（module housing unit）140，用於供模組後座單元140設置的基板172，及設置於基板172、且位於光學鏡片組1的像側3的影像感測器72。光學鏡片組1中之影像感測器72可以是電子感光元件，例如感光耦合元件或互補性氧化金屬半導體元件。成像面71是形成於影像感測器72。As shown in FIG. 22, the image module 120 includes the optical lens set 1 as previously described. Fig. 22 illustrates the optical lens group 1 of the foregoing first embodiment. In addition, the electronic device 100 further includes a lens barrel 130 for the optical lens set 1 and a module housing unit 140 for the lens barrel 130 for setting the module rear seat unit 140. The substrate 172 and the image sensor 72 are disposed on the substrate 172 and located on the image side 3 of the optical lens group 1. The image sensor 72 in the optical lens set 1 may be an electronic photosensitive element such as a photosensitive coupling element or a complementary oxidized metal semiconductor element. The imaging surface 71 is formed on the image sensor 72.
本發明所使用的影像感測器72是採用板上連接式晶片封裝（Chip on Board, COB）的封裝方式而直接連接在基板172上。這和傳統晶片尺寸封裝之封裝方式的差別在於，板上連接式晶片封裝不需使用保護玻璃。因此，在光學鏡片組1中並不需要在影像感測器72之前設置保護玻璃，然本發明並不以此為限。The image sensor 72 used in the present invention is directly connected to the substrate 172 by a chip-on-chip (COB) package. This differs from the conventional wafer size package in that the on-board wafer package does not require the use of a protective glass. Therefore, it is not necessary to provide a protective glass in front of the image sensor 72 in the optical lens group 1, but the invention is not limited thereto.
須注意的是，本實施例雖顯示濾光片70，然而在其他實施例中亦可省略濾光片70之結構，所以濾光片70並非必要。且機殼110、鏡筒130、及/或模組後座單元140可為單一元件或多個元件組裝而成，但無須限定於此。其次，本實施例所使用的影像感測器72是採用板上連接式晶片封裝的封裝方式而直接連接在基板172上，然本發明並不以此為限。It should be noted that although the filter 70 is shown in this embodiment, the structure of the filter 70 may be omitted in other embodiments, so the filter 70 is not necessary. The housing 110, the lens barrel 130, and/or the module rear seat unit 140 may be assembled as a single component or a plurality of components, but need not be limited thereto. The image sensor 72 used in this embodiment is directly connected to the substrate 172 by using a packaged on-board chip package. However, the present invention is not limited thereto.
具有屈光率的六片透鏡10、20、30、40、50、60例示性地是以於兩透鏡之間分別存在有空氣間隔的方式設置於鏡筒130內。模組後座單元140具有鏡頭後座141，及設置於鏡頭後座141與影像感測器72之間的影像感測器後座146，然在其它的實施態樣中，不一定存在有影像感測器後座146。鏡筒130是和鏡頭後座141沿軸線I-I'同軸設置，且鏡筒130設置於鏡頭後座141的內側。The six lenses 10, 20, 30, 40, 50, 60 having a refractive power are exemplarily disposed in the lens barrel 130 such that air gaps exist between the two lenses. The module rear seat unit 140 has a lens rear seat 141 and an image sensor rear seat 146 disposed between the lens rear seat 141 and the image sensor 72. However, in other embodiments, images are not necessarily present. Sensor rear seat 146. The lens barrel 130 is disposed coaxially with the lens rear seat 141 along the axis I-I', and the lens barrel 130 is disposed inside the lens rear seat 141.
另請參閱圖23，為應用前述光學鏡片組1的可攜式電子裝置200的第二較佳實施例。第二較佳實施例的可攜式電子裝置200與第一較佳實施例的可攜式電子裝置100的主要差別在於：鏡頭後座141具有第一座體142、第二座體143、線圈144及磁性元件145。第一座體142供鏡筒130設置並與鏡筒130外側相貼合且沿軸線I-I'設置、第二座體143沿軸線I-I'並環繞著第一座體142之外側設置。線圈144設置在第一座體142的外側與第二座體143的內側之間。磁性元件145設置在線圈144的外側與第二座體143的內側之間。Referring to FIG. 23, a second preferred embodiment of the portable electronic device 200 for applying the optical lens assembly 1 described above is shown. The main difference between the portable electronic device 200 of the second preferred embodiment and the portable electronic device 100 of the first preferred embodiment is that the lens rear seat 141 has a first base 142, a second base 143, and a coil. 144 and magnetic element 145. The first body 142 is disposed for the lens barrel 130 and is disposed adjacent to the outer side of the lens barrel 130 and disposed along the axis I-I'. The second body 143 is disposed along the axis I-I' and surrounding the outer side of the first body 142. . The coil 144 is disposed between the outer side of the first seat body 142 and the inner side of the second seat body 143. The magnetic member 145 is disposed between the outer side of the coil 144 and the inner side of the second seat body 143.
第一座體142可帶著鏡筒130及設置在鏡筒130內的光學鏡片組1沿軸線I-I'，即圖6之光軸4移動。影像感測器後座146則與第二座體143相貼合。濾光片70，則是設置在影像感測器後座146。第二實施例可攜式電子裝置200的其他元件結構則與第一實施例的可攜式電子裝置100類似，故在此不再贅述。 以上所述僅為本發明之較佳實施例，凡依本發明申請專利範圍所做之均等變化與修飾，皆應屬本發明之涵蓋範圍。The first body 142 is movable along the axis I-I', that is, the optical axis 4 of FIG. 6, with the lens barrel 130 and the optical lens group 1 disposed in the lens barrel 130. The image sensor rear seat 146 is in contact with the second body 143. The filter 70 is disposed on the image sensor rear seat 146. The other components of the portable electronic device 200 of the second embodiment are similar to those of the portable electronic device 100 of the first embodiment, and thus are not described herein again. The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.
1‧‧‧光學鏡片組
2‧‧‧物側
3‧‧‧像側
4‧‧‧光軸
10‧‧‧第一透鏡
11‧‧‧物側面
12‧‧‧像側面
13‧‧‧凸面部
14‧‧‧凸面部
16‧‧‧凹面部
17‧‧‧凸面部
17’ ‧‧‧凹面部
20‧‧‧第二透鏡
21‧‧‧物側面
22‧‧‧像側面
23‧‧‧凸面部
24‧‧‧凹面部
26‧‧‧凹面部
27‧‧‧凹面部
30‧‧‧第三透鏡
31‧‧‧物側面
32‧‧‧像側面
33‧‧‧凸面部
34‧‧‧凹面部
36‧‧‧凸面部
37‧‧‧凸面部
40‧‧‧第四透鏡
41‧‧‧物側面
42‧‧‧像側面
43‧‧‧凹面部
44‧‧‧凹面部
46‧‧‧凸面部
47‧‧‧凸面部
50‧‧‧第五透鏡
51‧‧‧物側面
52‧‧‧像側面
53‧‧‧凸面部
54‧‧‧凹面部
56‧‧‧凹面部
57‧‧‧凸面部
60‧‧‧第六透鏡
61‧‧‧物側面
62‧‧‧像側面
63‧‧‧凸面部
64‧‧‧凸面部
66‧‧‧凹面部
67‧‧‧凸面部
70‧‧‧濾光片
71‧‧‧成像面
72‧‧‧影像感測器
80‧‧‧光圈
T1~T6‧‧‧各透鏡中心厚度
100‧‧‧可攜式電子裝置
110‧‧‧機殼
120‧‧‧影像模組
130‧‧‧鏡筒
140‧‧‧模組後座單元
141‧‧‧鏡頭後座
142‧‧‧第一座體
143‧‧‧第二座體
144‧‧‧線圈
145‧‧‧磁性元件
146‧‧‧影像感測器後座
172‧‧‧基板
200‧‧‧可攜式電子裝置
I‧‧‧光軸
A~C‧‧‧區域
E‧‧‧延伸部
Lc‧‧‧主光線
Lm‧‧‧邊緣光線1‧‧‧Optical lens group
2‧‧‧ object side
3‧‧‧ image side
4‧‧‧ optical axis
10‧‧‧ first lens
11‧‧‧ ‧ side
12‧‧‧like side
13‧‧‧ convex face
14‧‧‧ convex face
16‧‧‧ concave face
17‧‧‧ convex face
17 ' ‧‧‧ concave face
20‧‧‧second lens
21‧‧‧ ‧ side
22‧‧‧like side
23‧‧‧ convex face
24‧‧‧ concave face
26‧‧‧ concave face
27‧‧‧ concave face
30‧‧‧ third lens
31‧‧‧ ‧ side
32‧‧‧like side
33‧‧‧ convex face
34‧‧‧ concave face
36‧‧‧ convex face
37‧‧‧ convex face
40‧‧‧Fourth lens
41‧‧‧ ‧ side
42‧‧‧like side
43‧‧‧ concave face
44‧‧‧ concave face
46‧‧‧ convex face
47‧‧‧ convex face
50‧‧‧ fifth lens
51‧‧‧ ‧ side
52‧‧‧like side
53‧‧‧ convex face
54‧‧‧ concave face
56‧‧‧ concave face
57‧‧‧ convex face
60‧‧‧ sixth lens
61‧‧‧ ‧ side
62‧‧‧like side
63‧‧‧ convex face
64‧‧‧ convex face
66‧‧‧ concave face
67‧‧‧ convex face
70‧‧‧Filter
71‧‧‧ imaging surface
72‧‧‧Image sensor
80‧‧‧ aperture
T 1 ~T 6 ‧‧‧ each lens center thickness
100‧‧‧Portable electronic devices
110‧‧‧Shell
120‧‧‧Image Module
130‧‧‧Mirror tube
140‧‧‧Modular rear seat unit
141‧‧‧Lens rear seat
142‧‧‧ first body
143‧‧‧Second body
144‧‧‧ coil
145‧‧‧Magnetic components
146‧‧‧Image sensor backseat
172‧‧‧Substrate
200‧‧‧Portable electronic devices
I‧‧‧ optical axis
A~C‧‧‧Area
E‧‧‧Extension
Lc‧‧‧ chief ray
Lm‧‧‧ edge light
圖1至圖5繪示本發明光學鏡片組判斷曲率形狀方法之示意圖。 第6圖繪示本發明六片式光學鏡片組的第一實施例之示意圖。 圖7A繪示第一實施例在成像面上的縱向球差。 圖7B繪示第一實施例在弧矢方向的像散像差。 圖7C繪示第一實施例在子午方向的像散像差。 圖7D繪示第一實施例的畸變像差。 圖8繪示本發明六片式光學鏡片組的第二實施例之示意圖。 圖9A繪示第二實施例在成像面上的縱向球差。 圖9B繪示第二實施例在弧矢方向的像散像差。 圖9C繪示第二實施例在子午方向的像散像差。 圖9D繪示第二實施例的畸變像差。 圖10繪示本發明六片式光學鏡片組的第三實施例之示意圖。 圖11A繪示第三實施例在成像面上的縱向球差。 圖11B繪示第三實施例在弧矢方向的像散像差。 圖11C繪示第三實施例在子午方向的像散像差。 圖11D繪示第三實施例的畸變像差。 圖12繪示本發明六片式光學鏡片組的第四實施例之示意圖。 圖13A繪示第四實施例在成像面上的縱向球差。 圖13B繪示第四實施例在弧矢方向的像散像差。 圖13C繪示第四實施例在子午方向的像散像差。 圖13D繪示第四實施例的畸變像差。 圖14繪示本發明六片式光學鏡片組的第五實施例之示意圖。 圖15A繪示第五實施例在成像面上的縱向球差。 圖15B繪示第五實施例在弧矢方向的像散像差。 圖15C繪示第五實施例在子午方向的像散像差。 圖15D繪示第五實施例的畸變像差。 圖16繪示本發明六片式光學鏡片組的第六實施例之示意圖。 圖17A繪示第六實施例在成像面上的縱向球差。 圖17B繪示第六實施例在弧矢方向的像散像差。 圖17C繪示第六實施例在子午方向的像散像差。 圖17D繪示第六實施例的畸變像差。 圖18繪示本發明六片式光學鏡片組的第七實施例之示意圖。 圖19A繪示第七實施例在成像面上的縱向球差。 圖19B繪示第七實施例在弧矢方向的像散像差。 圖19C繪示第七實施例在子午方向的像散像差。 圖19D繪示第七實施例的畸變像差。 圖20繪示本發明六片式光學鏡片組的第八實施例之示意圖。 圖21A繪示第八實施例在成像面上的縱向球差。 圖21B繪示第八實施例在弧矢方向的像散像差。 圖21C繪示第八實施例在子午方向的像散像差。 圖21D繪示第八實施例的畸變像差。 圖22繪示應用本發明六片式光學鏡片組的可攜式電子裝置的第一較佳實施例之示意圖。 圖23繪示應用本發明六片式光學鏡片組的可攜式電子裝置的第二較佳實施例之示意圖。 圖24表示第一實施例詳細的光學數據。 圖25表示第一實施例詳細的非球面數據。 圖26表示第二實施例詳細的光學數據。 圖27表示第二實施例詳細的非球面數據。 圖28表示第三實施例詳細的光學數據。 圖29表示第三實施例詳細的非球面數據。 圖30表示第四實施例詳細的光學數據。 圖31表示第四實施例詳細的非球面數據。 圖32表示第五實施例詳細的光學數據。 圖33表示第五實施例詳細的非球面數據。 圖34表示第六實施例詳細的光學數據。 圖35表示第六實施例詳細的非球面數據。 圖36表示第七實施例詳細的光學數據。 圖37表示第七實施例詳細的非球面數據。 圖38表示第八實施例詳細的光學數據。 圖39表示第八實施例詳細的非球面數據。 圖40表示各實施例之重要參數。1 to 5 are schematic views showing a method of determining a curvature shape of an optical lens group of the present invention. Figure 6 is a schematic view showing a first embodiment of the six-piece optical lens unit of the present invention. Fig. 7A illustrates the longitudinal spherical aberration on the image plane of the first embodiment. Fig. 7B illustrates the astigmatic aberration in the sagittal direction of the first embodiment. Fig. 7C illustrates the astigmatic aberration in the meridional direction of the first embodiment. Fig. 7D illustrates the distortion aberration of the first embodiment. Figure 8 is a schematic view showing a second embodiment of the six-piece optical lens unit of the present invention. Figure 9A illustrates the longitudinal spherical aberration on the image plane of the second embodiment. FIG. 9B illustrates the astigmatic aberration in the sagittal direction of the second embodiment. Fig. 9C illustrates the astigmatic aberration in the meridional direction of the second embodiment. Fig. 9D illustrates the distortion aberration of the second embodiment. Figure 10 is a schematic view showing a third embodiment of the six-piece optical lens unit of the present invention. Figure 11A illustrates the longitudinal spherical aberration on the image plane of the third embodiment. Fig. 11B illustrates the astigmatic aberration in the sagittal direction of the third embodiment. Fig. 11C illustrates the astigmatic aberration in the meridional direction of the third embodiment. Fig. 11D illustrates the distortion aberration of the third embodiment. Figure 12 is a schematic view showing a fourth embodiment of the six-piece optical lens unit of the present invention. Figure 13A illustrates the longitudinal spherical aberration on the image plane of the fourth embodiment. Fig. 13B illustrates the astigmatic aberration in the sagittal direction of the fourth embodiment. Fig. 13C illustrates the astigmatic aberration in the meridional direction of the fourth embodiment. Fig. 13D illustrates the distortion aberration of the fourth embodiment. Figure 14 is a schematic view showing a fifth embodiment of the six-piece optical lens unit of the present invention. Figure 15A illustrates the longitudinal spherical aberration on the image plane of the fifth embodiment. Fig. 15B illustrates the astigmatic aberration in the sagittal direction of the fifth embodiment. Fig. 15C illustrates the astigmatic aberration in the meridional direction of the fifth embodiment. Fig. 15D illustrates the distortion aberration of the fifth embodiment. Figure 16 is a schematic view showing a sixth embodiment of the six-piece optical lens unit of the present invention. Figure 17A illustrates the longitudinal spherical aberration on the image plane of the sixth embodiment. Fig. 17B illustrates the astigmatic aberration in the sagittal direction of the sixth embodiment. Fig. 17C shows the astigmatic aberration in the meridional direction of the sixth embodiment. Fig. 17D illustrates the distortion aberration of the sixth embodiment. Figure 18 is a schematic view showing a seventh embodiment of the six-piece optical lens unit of the present invention. Figure 19A illustrates the longitudinal spherical aberration on the image plane of the seventh embodiment. Fig. 19B illustrates the astigmatic aberration in the sagittal direction of the seventh embodiment. Fig. 19C shows the astigmatic aberration in the tangential direction of the seventh embodiment. Fig. 19D illustrates the distortion aberration of the seventh embodiment. Figure 20 is a schematic view showing an eighth embodiment of the six-piece optical lens unit of the present invention. Figure 21A illustrates the longitudinal spherical aberration on the image plane of the eighth embodiment. Fig. 21B shows the astigmatic aberration in the sagittal direction of the eighth embodiment. Fig. 21C shows the astigmatic aberration in the tangential direction of the eighth embodiment. Fig. 21D illustrates the distortion aberration of the eighth embodiment. FIG. 22 is a schematic view showing a first preferred embodiment of a portable electronic device to which the six-piece optical lens unit of the present invention is applied. 23 is a schematic view showing a second preferred embodiment of a portable electronic device to which the six-piece optical lens unit of the present invention is applied. Fig. 24 shows detailed optical data of the first embodiment. Fig. 25 shows detailed aspherical data of the first embodiment. Fig. 26 shows detailed optical data of the second embodiment. Fig. 27 shows detailed aspherical data of the second embodiment. Fig. 28 shows detailed optical data of the third embodiment. Fig. 29 shows detailed aspherical data of the third embodiment. Fig. 30 shows detailed optical data of the fourth embodiment. Fig. 31 shows detailed aspherical data of the fourth embodiment. Fig. 32 shows detailed optical data of the fifth embodiment. Fig. 33 shows detailed aspherical data of the fifth embodiment. Fig. 34 shows detailed optical data of the sixth embodiment. Fig. 35 shows detailed aspherical data of the sixth embodiment. Fig. 36 shows the detailed optical data of the seventh embodiment. Fig. 37 shows detailed aspherical data of the seventh embodiment. Fig. 38 shows detailed optical data of the eighth embodiment. Fig. 39 shows detailed aspherical data of the eighth embodiment. Figure 40 shows the important parameters of the various embodiments.
1‧‧‧光學鏡片組 1‧‧‧Optical lens group
2‧‧‧物側 2‧‧‧ object side
3‧‧‧像側 3‧‧‧ image side
4‧‧‧光軸 4‧‧‧ optical axis
10‧‧‧第一透鏡 10‧‧‧ first lens
11‧‧‧物側面 11‧‧‧ ‧ side
12‧‧‧像側面 12‧‧‧like side
13‧‧‧凸面部 13‧‧‧ convex face
14‧‧‧凸面部 14‧‧‧ convex face
16‧‧‧凹面部 16‧‧‧ concave face
17‧‧‧凸面部 17‧‧‧ convex face
20‧‧‧第二透鏡 20‧‧‧second lens
21‧‧‧物側面 21‧‧‧ ‧ side
22‧‧‧像側面 22‧‧‧like side
23‧‧‧凸面部 23‧‧‧ convex face
24‧‧‧凹面部 24‧‧‧ concave face
26‧‧‧凹面部 26‧‧‧ concave face
27‧‧‧凹面部 27‧‧‧ concave face
30‧‧‧第三透鏡 30‧‧‧ third lens
31‧‧‧物側面 31‧‧‧ ‧ side
32‧‧‧像側面 32‧‧‧like side
33‧‧‧凸面部 33‧‧‧ convex face
34‧‧‧凹面部 34‧‧‧ concave face
36‧‧‧凸面部 36‧‧‧ convex face
37‧‧‧凸面部 37‧‧‧ convex face
40‧‧‧第四透鏡 40‧‧‧Fourth lens
41‧‧‧物側面 41‧‧‧ ‧ side
42‧‧‧像側面 42‧‧‧like side
43‧‧‧凹面部 43‧‧‧ concave face
44‧‧‧凹面部 44‧‧‧ concave face
46‧‧‧凸面部 46‧‧‧ convex face
47‧‧‧凸面部 47‧‧‧ convex face
50‧‧‧第五透鏡 50‧‧‧ fifth lens
51‧‧‧物側面 51‧‧‧ ‧ side
52‧‧‧像側面 52‧‧‧like side
53‧‧‧凸面部 53‧‧‧ convex face
54‧‧‧凹面部 54‧‧‧ concave face
56‧‧‧凹面部 56‧‧‧ concave face
57‧‧‧凸面部 57‧‧‧ convex face
60‧‧‧第六透鏡 60‧‧‧ sixth lens
61‧‧‧物側面 61‧‧‧ ‧ side
62‧‧‧像側面 62‧‧‧like side
63‧‧‧凸面部 63‧‧‧ convex face
64‧‧‧凸面部 64‧‧‧ convex face
66‧‧‧凹面部 66‧‧‧ concave face
67‧‧‧凸面部 67‧‧‧ convex face
70‧‧‧濾光片 70‧‧‧Filter
71‧‧‧成像面 71‧‧‧ imaging surface
72‧‧‧影像感測器 72‧‧‧Image sensor
80‧‧‧光圈 80‧‧‧ aperture
T1~T6‧‧‧各透鏡中心厚度 T 1 ~T 6 ‧‧‧ each lens center thickness
Claims (20)
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| TW105100012A TWI588525B (en) | 2016-01-04 | 2016-01-04 | Optical lens assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105100012A TWI588525B (en) | 2016-01-04 | 2016-01-04 | Optical lens assembly |
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| TW201627714A true TW201627714A (en) | 2016-08-01 |
| TWI588525B TWI588525B (en) | 2017-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| TW105100012A TWI588525B (en) | 2016-01-04 | 2016-01-04 | Optical lens assembly |
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| TW (1) | TWI588525B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6082839B1 (en) * | 2016-11-03 | 2017-02-15 | エーエーシーアコースティックテクノロジーズ（シンセン）カンパニーリミテッドＡＡＣ Ａｃｏｕｓｔｉｃ Ｔｅｃｈｎｏｌｏｇｉｅｓ（Ｓｈｅｎｚｈｅｎ）Ｃｏ．，Ｌｔｄ | Imaging lens |
| TWI607238B (en) * | 2016-08-22 | 2017-12-01 | 大立光電股份有限公司 | Optical imaging system, imaging apparatus and electronic device |
| TWI622787B (en) * | 2016-12-16 | 2018-05-01 | 玉晶光電股份有限公司 | Optical imaging lens |
| US10082644B2 (en) | 2017-02-14 | 2018-09-25 | Genius Electronic Optical (Xiamen) Co., Ltd. | Optical lens assembly |
| TWI639038B (en) | 2017-01-05 | 2018-10-21 | 先進光電科技股份有限公司 | Optical image capturing system |
| TWI642988B (en) * | 2017-02-14 | 2018-12-01 | 玉晶光電股份有限公司 | Optical lens assembly |
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| WO2014155467A1 (en) * | 2013-03-26 | 2014-10-02 | 富士フイルム株式会社 | Imaging lens and imaging device provided with imaging lens |
| JP6300183B2 (en) * | 2013-04-22 | 2018-03-28 | コニカミノルタ株式会社 | Imaging lens, imaging device, and portable terminal |
| US9354423B2 (en) * | 2013-11-08 | 2016-05-31 | Samsung Electro-Mechanics Co., Ltd. | Lens module |
| TWI477807B (en) * | 2014-05-23 | 2015-03-21 | Largan Precision Co Ltd | Photographic optical lens assembly, image capturing unit and mobile device |
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| TWI607238B (en) * | 2016-08-22 | 2017-12-01 | 大立光電股份有限公司 | Optical imaging system, imaging apparatus and electronic device |
| CN107765394A (en) * | 2016-08-22 | 2018-03-06 | 大立光电股份有限公司 | Optical camera system group, image capturing device and electronic device |
| US9977224B2 (en) | 2016-08-22 | 2018-05-22 | Largan Precision Co., Ltd. | Optical imaging system, imaging apparatus and electronic device |
| US11789244B2 (en) | 2016-08-22 | 2023-10-17 | Largan Precision Co., Ltd. | Optical imaging system, imaging apparatus and electronic device |
| JP6082839B1 (en) * | 2016-11-03 | 2017-02-15 | エーエーシーアコースティックテクノロジーズ（シンセン）カンパニーリミテッドＡＡＣ Ａｃｏｕｓｔｉｃ Ｔｅｃｈｎｏｌｏｇｉｅｓ（Ｓｈｅｎｚｈｅｎ）Ｃｏ．，Ｌｔｄ | Imaging lens |
| TWI622787B (en) * | 2016-12-16 | 2018-05-01 | 玉晶光電股份有限公司 | Optical imaging lens |
| TWI639038B (en) | 2017-01-05 | 2018-10-21 | 先進光電科技股份有限公司 | Optical image capturing system |
| US10473892B2 (en) | 2017-01-05 | 2019-11-12 | Ability Opto-Electronics Technology Co., Ltd. | Optical image capturing system |
| US10082644B2 (en) | 2017-02-14 | 2018-09-25 | Genius Electronic Optical (Xiamen) Co., Ltd. | Optical lens assembly |
| TWI642988B (en) * | 2017-02-14 | 2018-12-01 | 玉晶光電股份有限公司 | Optical lens assembly |
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| TWI588525B (en) | 2017-06-21 |
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