TWI639027B - Imaging lens assembly and electronic device - Google Patents
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Abstract
一種成像鏡頭，包含複數透鏡，透鏡中的至少一者為雙色模造透鏡，雙色模造透鏡包含透光部及光線吸收部。透光部包含光學有效區及第一外緣面。第一外緣面位於雙色模造透鏡的透鏡外緣面上。光線吸收部僅位於雙色模造透鏡的物側表面及像側表面中的其中一表面，光線吸收部的塑膠材質及顏色與透光部的塑膠材質及顏色不同，且光線吸收部包含開孔及第二外緣面。第二外緣面位於雙色模造透鏡的透鏡外緣面上並連接第一外緣面，且第二外緣面與第一外緣面形成第二外緣面的階差面。當滿足特定條件時，可維持成像鏡頭的小型化與遮光效率之間的平衡。 An imaging lens comprising a plurality of lenses, at least one of which is a two-color molded lens, the two-color molded lens comprising a light transmitting portion and a light absorbing portion. The light transmitting portion includes an optical effective region and a first outer edge surface. The first outer peripheral surface is located on the outer peripheral surface of the lens of the two-color molded lens. The light absorbing portion is located only on one of the object side surface and the image side surface of the two-color molded lens, and the plastic material and color of the light absorbing portion are different from the plastic material and color of the light transmitting portion, and the light absorbing portion includes the opening and the Two outer margins. The second outer edge surface is located on the outer surface of the lens of the two-color molded lens and is connected to the first outer edge surface, and the second outer edge surface and the first outer edge surface form a step surface of the second outer edge surface. When a certain condition is satisfied, the balance between miniaturization and shading efficiency of the imaging lens can be maintained.
Description
本發明係有關於一種成像鏡頭，且特別是有關於一種應用在電子裝置上的小型化成像鏡頭。 The present invention relates to an imaging lens, and more particularly to a miniaturized imaging lens for use on an electronic device.
隨著手機、平板電腦等搭載有成像裝置的個人化電子產品及行動通訊產品的普及，連帶帶動小型化成像鏡頭的興起，對具有高解析度與優良成像品質的小型化成像鏡頭的需求也大幅攀升。 With the popularization of personalized electronic products and mobile communication products equipped with imaging devices such as mobile phones and tablet computers, the rise of miniaturized imaging lenses has led to a demand for compact imaging lenses with high resolution and excellent image quality. rising.
塑膠透鏡通常用以有效降低成像鏡頭的生產成本，習用的塑膠透鏡主要使用射出成型的方法製造而成，由於塑膠透鏡的表面光滑明亮並具有較高的反射率，當雜散光由成像鏡頭的光學元件表面反射至塑膠透鏡的表面時，因而無法有效衰減雜散光入射至塑膠透鏡的表面之反射光強度。 Plastic lenses are usually used to effectively reduce the production cost of the imaging lens. The conventional plastic lenses are mainly manufactured by injection molding. Since the surface of the plastic lens is smooth and bright and has high reflectivity, when the stray light is optical by the imaging lens When the surface of the component is reflected to the surface of the plastic lens, the reflected light intensity of the stray light incident on the surface of the plastic lens cannot be effectively attenuated.
在習用的抑制雜散光的技術中，例如在透鏡上塗墨，或是在透鏡邊緣與黑色鏡筒之間設置折射率匹配層的技術等，由於通常在實施上有諸多限制，故不適用於小型化高精度塑膠透鏡。 In the conventional technique for suppressing stray light, for example, applying ink on a lens or a technique of providing an index matching layer between a lens edge and a black lens barrel, since it is usually limited in implementation, it is not suitable for small size. High precision plastic lens.
因此，如何滿足小型化成像鏡頭在遮光效率方面的要求，進而提升小型化成像鏡頭的成像品質以滿足高階成像裝置的需求，已成為當今最重要的議題之一。 Therefore, how to meet the requirements of the miniaturization imaging lens in terms of shading efficiency, and thus improve the imaging quality of the miniaturized imaging lens to meet the needs of high-order imaging devices has become one of the most important issues today.
本發明提供一種成像鏡頭及電子裝置，藉由成像鏡頭中的雙色模造透鏡，以及其透光部及光線吸收部的配置，可維持成像鏡頭的小型化與遮光效率之間的平衡。 The invention provides an imaging lens and an electronic device, which can maintain the balance between miniaturization and shading efficiency of the imaging lens by the two-color molding lens in the imaging lens and the arrangement of the light transmitting portion and the light absorbing portion.
依據本發明提供一種成像鏡頭，包含複數透鏡，透鏡中的至少一者為雙色模造透鏡，雙色模造透鏡包含透光部及光線吸收部。透光部包含光學有效區及第一外緣面。第一外緣面位於雙色模造透鏡的透鏡外緣面上，透鏡外緣面連接雙色模造透鏡的物側表面及像側表面。光線吸收部僅位於雙色模造透鏡的物側表面及像側表面中的其中一表面，光線吸收部的塑膠材質及顏色與透光部的塑膠材質及顏色不同，且光線吸收部包含開孔及第二外緣面。開孔與光學有效區對應設置。第二外緣面位於雙色模造透鏡的透鏡外緣面上並連接第一外緣面，且第二外緣面與第一外緣面形成第二外緣面的階差面。透光部的最大外徑為ψW，光線吸收部的最大外徑為ψB，其滿足下列條件：ψB>ψW；以及0.03mm<(ψB-ψW)/2<0.75mm。藉由本段所提及的特徵，透光部與光線吸收部的尺寸可維持在特定數值範圍內，有利於成像鏡頭的小型化與遮光效率之間的平衡。 According to the present invention, there is provided an imaging lens comprising a plurality of lenses, at least one of which is a two-color molded lens, and the two-color molded lens comprises a light transmitting portion and a light absorbing portion. The light transmitting portion includes an optical effective region and a first outer edge surface. The first outer peripheral surface is located on the outer peripheral surface of the lens of the two-color molded lens, and the outer peripheral surface of the lens is connected to the object side surface and the image side surface of the two-color molded lens. The light absorbing portion is located only on one of the object side surface and the image side surface of the two-color molded lens, and the plastic material and color of the light absorbing portion are different from the plastic material and color of the light transmitting portion, and the light absorbing portion includes the opening and the Two outer margins. The opening is corresponding to the optical effective area. The second outer edge surface is located on the outer surface of the lens of the two-color molded lens and is connected to the first outer edge surface, and the second outer edge surface and the first outer edge surface form a step surface of the second outer edge surface. The maximum outer diameter of the light transmitting portion is ψW, and the maximum outer diameter of the light absorbing portion is ψB, which satisfies the following conditions: ψB>ψW; and 0.03 mm<(ψB-ψW)/2<0.75 mm. With the features mentioned in this paragraph, the size of the light transmitting portion and the light absorbing portion can be maintained within a specific numerical range, which is advantageous for the balance between the miniaturization and the light blocking efficiency of the imaging lens.
根據前段所述的成像鏡頭，透光部及光線吸收部可由二次射出成型製成。第一外緣面可包含注料痕。第二外緣面可包含凹縮部。第二外緣面上的一點和光軸的距離與凹縮部上的一點和光軸的距離的最大差值為h，其可滿足下列條件：0.05mm<h<0.30mm。凹縮部可與第一外緣面的注料痕對應設置。階差面可包含平直面，其與光軸方向垂直，第二外緣面在平行光軸方向上的寬度為dB，其可滿足下列條件：0.05mm<dB<0.60mm。透光部的最大外徑為ψW，光線吸收部的最大外徑為ψB，其可滿足下列條件：0.03mm<(ψB-ψW)/2<0.42mm。光學有效區的二表面中至少一表面可為非球面。成像鏡頭的透鏡的數量為N，其可滿足下列條件：5N<10。光線吸收部可更包含抗反射膜層，其鍍在光線吸收部上未與透光部接觸的至少部分表面。開孔可為非圓形。藉由上述提及的各點技術特徵，有利於成像鏡頭的自動化生產流程。 According to the imaging lens of the preceding paragraph, the light transmitting portion and the light absorbing portion can be formed by secondary injection molding. The first outer edge surface may include a shot mark. The second outer rim surface may include a concavity. The maximum difference between the distance of the point on the second outer edge surface and the optical axis from the distance between the point on the concavity and the optical axis is h, which satisfies the following condition: 0.05 mm < h < 0.30 mm. The recessed portion may be disposed corresponding to the shot mark of the first outer peripheral surface. The step surface may include a flat surface which is perpendicular to the optical axis direction, and a width of the second outer edge surface in the direction of the parallel optical axis is dB, which satisfies the following condition: 0.05 mm < dB < 0.60 mm. The maximum outer diameter of the light transmitting portion is ψW, and the maximum outer diameter of the light absorbing portion is ψB, which satisfies the following condition: 0.03 mm <(ψB-ψW)/2<0.42 mm. At least one of the two surfaces of the optically active region may be aspherical. The number of lenses of the imaging lens is N, which satisfies the following conditions: 5 N<10. The light absorbing portion may further include an anti-reflection film layer plated on at least a part of the surface of the light absorbing portion that is not in contact with the light transmitting portion. The opening can be non-circular. With the technical features of each point mentioned above, the automated production process of the imaging lens is facilitated.
依據本發明更提供一種電子裝置，包含成像鏡頭模組，成像鏡頭模組包含前述的成像鏡頭及電子感光元件，其中電子感光元件設置於成像鏡頭的成像面。藉此，有助於具有良好的成像品質。 According to the present invention, there is further provided an electronic device comprising an imaging lens module comprising the aforementioned imaging lens and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on an imaging surface of the imaging lens. Thereby, it contributes to good image quality.
依據本發明另提供一種成像鏡頭，包含複數透鏡，透鏡中的至少一者為雙色模造透鏡，雙色模造透鏡包含透光部及光線吸收部。透光部包含光學有效區及第一外緣面。第一外緣面位於雙色模造透鏡的透鏡外緣面上，透鏡外緣面連接雙色模造透鏡的物側表面及像側表面。光線吸收部 僅位於雙色模造透鏡的物側表面及像側表面中的其中一表面，光線吸收部的塑膠材質及顏色與透光部的塑膠材質及顏色不同，且光線吸收部包含開孔及第二外緣面。開孔與光學有效區對應設置。第二外緣面位於雙色模造透鏡的透鏡外緣面上並連接第一外緣面，且第二外緣面與第一外緣面形成第二外緣面的階差面。透光部的最大外徑為ψW，光線吸收部的最大外徑為ψB，其滿足下列條件：0.82<ψW/ψB0.99。藉由本段所提及的特徵，可提升遮蔽雜散光的遮蔽效率。 According to the present invention, there is further provided an imaging lens comprising a plurality of lenses, at least one of which is a two-color molded lens, the two-color molded lens comprising a light transmitting portion and a light absorbing portion. The light transmitting portion includes an optical effective region and a first outer edge surface. The first outer peripheral surface is located on the outer peripheral surface of the lens of the two-color molded lens, and the outer peripheral surface of the lens is connected to the object side surface and the image side surface of the two-color molded lens. The light absorbing portion is located only on one of the object side surface and the image side surface of the two-color molded lens, and the plastic material and color of the light absorbing portion are different from the plastic material and color of the light transmitting portion, and the light absorbing portion includes the opening and the Two outer margins. The opening is corresponding to the optical effective area. The second outer edge surface is located on the outer surface of the lens of the two-color molded lens and is connected to the first outer edge surface, and the second outer edge surface and the first outer edge surface form a step surface of the second outer edge surface. The maximum outer diameter of the light transmitting portion is ψW, and the maximum outer diameter of the light absorbing portion is ψB, which satisfies the following condition: 0.82<ψW/ψB 0.99. With the features mentioned in this paragraph, the shielding efficiency of shielding stray light can be improved.
根據前段所述的成像鏡頭，透光部及光線吸收部可由二次射出成型製成。階差面可包含平直面，其與光軸方向垂直。光線吸收部可更包含抗反射膜層，其鍍在光線吸收部上未與透光部接觸的至少部分表面。第二外緣面可包含凹縮部。第二外緣面上的一點和光軸的距離與凹縮部上的一點和光軸的距離的最大差值為h，其可滿足下列條件：0.05mm<h<0.30mm。成像鏡頭的透鏡的數量為N，其可滿足下列條件：5N<10。開孔可為非圓形。藉由上述提及的各點技術特徵，可維持雙色模造透鏡整體結構的穩定度及平面度，以避免雙色模造透鏡厚度太薄而產生翹曲。 According to the imaging lens of the preceding paragraph, the light transmitting portion and the light absorbing portion can be formed by secondary injection molding. The step surface may comprise a flat surface that is perpendicular to the optical axis direction. The light absorbing portion may further include an anti-reflection film layer plated on at least a part of the surface of the light absorbing portion that is not in contact with the light transmitting portion. The second outer rim surface may include a concavity. The maximum difference between the distance of the point on the second outer edge surface and the optical axis from the distance between the point on the concavity and the optical axis is h, which satisfies the following condition: 0.05 mm < h < 0.30 mm. The number of lenses of the imaging lens is N, which satisfies the following conditions: 5 N<10. The opening can be non-circular. With the technical features of each point mentioned above, the stability and flatness of the overall structure of the two-color molded lens can be maintained, so that the thickness of the two-color molded lens is too thin to cause warpage.
依據本發明再提供一種電子裝置，包含成像鏡頭模組，成像鏡頭模組包含前述的成像鏡頭及電子感光元件，其中電子感光元件設置於成像鏡頭的成像面。藉此，有助於滿足現今對電子裝置的高規格的成像需求。 According to the present invention, there is provided an electronic device comprising an imaging lens module comprising the aforementioned imaging lens and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on an imaging surface of the imaging lens. Thereby, it helps to meet the high-standard imaging requirements of today's electronic devices.
10、20、30‧‧‧電子裝置 10, 20, 30‧‧‧ electronic devices
11、21、31‧‧‧成像鏡頭模組 11, 21, 31‧‧‧ imaging lens module
1000、3000‧‧‧成像鏡頭 1000, 3000‧‧‧ imaging lens
1101、1102、1103、1104、3101、3102、3103、3104‧‧‧透鏡 Lens 1101, 1102, 1103, 1104, 3101, 3102, 3103, 3104‧‧
1200、3200‧‧‧鏡筒 1200, 3200‧‧ ‧ tube
100、200、300‧‧‧雙色模造透鏡 100, 200, 300‧‧‧ two-color molded lens
101、201、301‧‧‧物側表面 101, 201, 301‧‧‧ ‧ side surface
102、202、302‧‧‧像側表面 102, 202, 302‧‧‧ image side surface
105、205、305‧‧‧透鏡外緣面 105, 205, 305‧ ‧ lens outer surface
130、230、330‧‧‧透光部 130, 230, 330‧‧ ‧ Transmitted Department
133、233、333‧‧‧光學有效區 133, 233, 333‧ ‧ optical effective area
135、235、335‧‧‧第一外緣面 135, 235, 335 ‧ ‧ first outer rim
136、236、336‧‧‧注料痕 136, 236, 336 ‧ ‧ injection marks
150、250、350‧‧‧光線吸收部 150, 250, 350‧‧‧Light Absorption Department
154、254、354‧‧‧開孔 154, 254, 354‧‧ ‧ openings
158、258、358‧‧‧抗反射膜層 158, 258, 358‧‧‧ anti-reflection coating
155、255、355‧‧‧第二外緣面 155, 255, 355‧‧‧ second outer rim
156、256、356‧‧‧階差面 156, 256, 356‧ ‧ step faces
159、259、359‧‧‧平直面 159, 259, 359‧ ‧ flat face
157、257、357‧‧‧凹縮部 157, 257, 357‧‧ ‧ recession
dB‧‧‧第二外緣面在平行光軸方向上的寬度 The width of the second outer edge of the dB‧‧‧ in the direction of the parallel optical axis
dW‧‧‧第一外緣面在平行光軸方向上的寬度 dW‧‧‧Width of the first outer edge in the direction of the parallel optical axis
h‧‧‧第二外緣面上的一點和光軸的距離與凹縮部上的一點和光軸的距離的最大差值 h‧‧‧The maximum difference between the point on the second outer edge and the optical axis and the distance between the point on the concavity and the optical axis
N‧‧‧成像鏡頭的透鏡的數量 Number of lenses for N‧‧‧ imaging lenses
ψB‧‧‧光線吸收部的最大外徑 ψB‧‧‧Maximum outer diameter of the light absorbing part
ψW‧‧‧透光部的最大外徑 ψW‧‧‧The largest outer diameter of the light transmission part
第1A圖繪示本發明第一實施例的成像鏡頭的示意圖；第1B圖繪示第一實施例中的雙色模造透鏡的示意圖；第1C圖繪示第一實施例中的雙色模造透鏡的立體圖；第1D圖繪示第1C圖的雙色模造透鏡的俯視圖；第1E圖繪示依照第1D圖剖面線1E-1E的剖視圖；第1F圖繪示依照第1D圖剖面線1F-1F的剖視圖；第1G圖繪示第一實施例中的另一雙色模造透鏡的示意圖；第1H圖繪示第一實施例中的另一雙色模造透鏡的立體圖；第1I圖繪示第1H圖的雙色模造透鏡的俯視圖；第1J圖繪示依照第1I圖剖面線1J-1J的剖視圖；第1K圖繪示依照第1I圖剖面線1K-1K的剖視圖；第2A圖繪示本發明第二實施例的成像鏡頭的示意圖；第2B圖繪示第二實施例中的雙色模造透鏡的示意圖；第2C圖繪示第二實施例中的雙色模造透鏡的立體圖；第2D圖繪示第2C圖的雙色模造透鏡的俯視圖；第2E圖繪示依照第2D圖剖面線2E-2E的剖視圖；第2F圖繪示依照第2D圖剖面線2F-2F的剖視圖；第3圖繪示本發明第三實施例的電子裝置的示意圖；第4圖繪示本發明第四實施例的電子裝置的示意圖；以及第5圖繪示本發明第五實施例的電子裝置的示意圖。 1A is a schematic view of an imaging lens according to a first embodiment of the present invention; FIG. 1B is a schematic view showing a two-color molded lens in the first embodiment; and FIG. 1C is a perspective view showing a two-color molded lens in the first embodiment; 1D is a plan view of a two-color molded lens of FIG. 1C; FIG. 1E is a cross-sectional view taken along line 1E-1E of FIG. 1D; and FIG. 1F is a cross-sectional view of a hatching 1F-1F according to FIG. 1D; 1G is a schematic view showing another two-color molded lens in the first embodiment; FIG. 1H is a perspective view showing another two-color molded lens in the first embodiment; and FIG. 1I is a two-color molded lens in FIG. FIG. 1J is a cross-sectional view taken along line 1J-1J of FIG. 1I; FIG. 1K is a cross-sectional view taken along line 1K-1K of FIG. 1I; and FIG. 2A is a view showing imaging of a second embodiment of the present invention; 2B is a schematic view of a two-color molded lens in the second embodiment; FIG. 2C is a perspective view of the two-color molded lens in the second embodiment; and FIG. 2D is a two-color molded lens in FIG. 2C Top view; Figure 2E shows section line 2E-2E according to Figure 2D FIG. 2 is a cross-sectional view of the electronic device according to the third embodiment of the present invention; FIG. 4 is a cross-sectional view of the electronic device according to the third embodiment of the present invention; A schematic diagram of a device; and FIG. 5 is a schematic diagram of an electronic device according to a fifth embodiment of the present invention.
請參照第1A圖，其繪示本發明第一實施例的成像鏡頭1000的示意圖。由第1A圖可知，成像鏡頭1000包含複數透鏡，透鏡中的二者為雙色模造透鏡100及200。 Please refer to FIG. 1A, which is a schematic diagram of an imaging lens 1000 according to a first embodiment of the present invention. As can be seen from FIG. 1A, the imaging lens 1000 includes a plurality of lenses, both of which are two-color molded lenses 100 and 200.
首先說明雙色模造透鏡100，請參照第1B圖，其繪示第一實施例中的雙色模造透鏡100的示意圖。由第1A圖及第1B圖可知，雙色模造透鏡100包含透光部130及光線吸收部150，即是經過二次射出成型或二次模造後而製成包含透光部130及光線吸收部150的雙色模造透鏡100。 First, the two-color molded lens 100 will be described. Referring to FIG. 1B, a schematic view of the two-color molded lens 100 in the first embodiment is shown. As can be seen from FIGS. 1A and 1B , the two-color molded lens 100 includes the light transmitting portion 130 and the light absorbing portion 150 , that is, after the second injection molding or the secondary molding, the light transmitting portion 130 and the light absorbing portion 150 are formed. The two-color molded lens 100.
雙色模造透鏡100上有物側表面101、像側表面102及透鏡外緣面105，其中物側表面101為雙色模造透鏡100面向被攝物(圖未揭示)的表面，像側表面102為雙色模造透鏡100面向成像面(圖未揭示)的表面，透鏡外緣面105連接物側表面101及像側表面102並呈環狀。 The two-color molded lens 100 has an object side surface 101, an image side surface 102, and a lens outer edge surface 105, wherein the object side surface 101 is a surface of the two-color molded lens 100 facing the object (not shown), and the image side surface 102 is two-color. The mold lens 100 faces the surface of the image forming surface (not shown), and the lens outer surface 105 is connected to the object side surface 101 and the image side surface 102 in a ring shape.
透光部130包含光學有效區133及第一外緣面135。成像光線通過光學有效區133並於成像面形成影像，光學有效區133可包含平面或是具有屈光度非球面的表面，遮住此區域會影響成像。第一外緣面135位於雙色模造透鏡100的透鏡外緣面105上。 The light transmitting portion 130 includes an optical effective area 133 and a first outer edge surface 135. The imaging light passes through the optically active area 133 and forms an image on the imaging surface. The optically active area 133 may comprise a plane or a surface having a refracting aspheric surface, which may affect imaging. The first outer peripheral surface 135 is located on the lens outer peripheral surface 105 of the two-color molded lens 100.
光線吸收部150位於雙色模造透鏡100的物側表面101及像側表面102中的一表面(第一實施例的雙色模造透鏡100中，所述表面為像側表面102)，光線吸收部150的塑膠材質及顏色與透光部130的塑膠材質及顏色不同。第一實施例的雙色模造透鏡100中，光線吸收部150的塑膠材 質具有吸收可見光線性質，其顏色為黑色，透光部130的塑膠材質具有可見光線穿透性質，其顏色為透明無色，故光線吸收部150的塑膠材質及顏色與透光部130的塑膠材質及顏色不同。在其他實施例中(圖未揭示)，光線吸收部可位於雙色模造透鏡的物側表面，或是光線吸收部可位於雙色模造透鏡的物側表面及像側表面。 The light absorbing portion 150 is located on one of the object side surface 101 and the image side surface 102 of the two-color mold lens 100 (in the two-color molded lens 100 of the first embodiment, the surface is the image side surface 102), and the light absorbing portion 150 The plastic material and color are different from the plastic material and color of the light transmitting portion 130. In the two-color mold lens 100 of the first embodiment, the plastic material of the light absorbing portion 150 has the property of absorbing visible light, the color of which is black, and the plastic material of the light transmitting portion 130 has visible light transmission property, and the color thereof is transparent and colorless. The plastic material and color of the light absorbing portion 150 are different from the plastic material and color of the light transmitting portion 130. In other embodiments (not shown), the light absorbing portion may be located on the object side surface of the two-color molded lens, or the light absorbing portion may be located on the object side surface and the image side surface of the two-color molded lens.
由第1B圖可知，光線吸收部150包含開孔154及第二外緣面155。開孔154與光學有效區133對應設置，以使成像光線通過光學有效區133於成像面形成影像。 As can be seen from FIG. 1B, the light absorbing portion 150 includes an opening 154 and a second outer surface 155. The aperture 154 is disposed corresponding to the optically active area 133 to cause imaging light to form an image on the imaging surface through the optically effective area 133.
第二外緣面155位於雙色模造透鏡100的透鏡外緣面105上並連接第一外緣面135，且第二外緣面155與第一外緣面135形成第二外緣面155的階差面156，即是在透鏡外緣面105上的至少一處，第二外緣面155較第一外緣面135凸出以形成第二外緣面155的階差面156。 The second outer edge surface 155 is located on the lens outer edge surface 105 of the two-color mold lens 100 and is connected to the first outer edge surface 135, and the second outer edge surface 155 and the first outer edge surface 135 form a second outer edge surface 155. The differential surface 156 is at least one of the outer peripheral surface 105 of the lens, and the second outer peripheral surface 155 protrudes from the first outer peripheral surface 135 to form a stepped surface 156 of the second outer peripheral surface 155.
透光部130的最大外徑為ψW，光線吸收部150的最大外徑為ψB，其滿足下列條件：ψB>ψW。藉此，可抑制雜散光以提升成像鏡頭1000的成像品質。 The maximum outer diameter of the light transmitting portion 130 is ψW, and the maximum outer diameter of the light absorbing portion 150 is ψB, which satisfies the following condition: ψB>ψW. Thereby, stray light can be suppressed to improve the imaging quality of the imaging lens 1000.
詳細來說，透光部130的最大外徑為ψW，光線吸收部150的最大外徑為ψB，其可滿足下列條件：0.03mm<(ψB-ψW)/2<0.75mm。藉此，透光部130與光線吸收部150的尺寸可維持在特定數值範圍內，有利於成像鏡頭1000的小型化與遮光效率之間的平衡。較佳地，其可滿足下列條件：0.03mm<(ψB-ψW)/2<0.42mm。 In detail, the maximum outer diameter of the light transmitting portion 130 is ψW, and the maximum outer diameter of the light absorbing portion 150 is ψB, which satisfies the following condition: 0.03 mm < (ψ B - ψ W) / 2 < 0.75 mm. Thereby, the size of the light transmitting portion 130 and the light absorbing portion 150 can be maintained within a specific numerical range, which is advantageous for the balance between the miniaturization and the light blocking efficiency of the imaging lens 1000. Preferably, it satisfies the following condition: 0.03 mm < (ψB-ψW)/2 < 0.42 mm.
透光部的最大外徑為ψW，光線吸收部的最大外徑為ψB，其可滿足下列條件：0.82<ψW/ψB0.99。藉此，可提升雙色模造透鏡100遮蔽雜散光的遮蔽效率。 The maximum outer diameter of the light transmitting portion is ψW, and the maximum outer diameter of the light absorbing portion is ψB, which satisfies the following conditions: 0.82<ψW/ψB 0.99. Thereby, the shielding efficiency of the two-color molded lens 100 to shield stray light can be improved.
透光部130及光線吸收部150可由二次射出成型製成。藉此，可減少工序，以提高雙色模造透鏡100的生產效率。 The light transmitting portion 130 and the light absorbing portion 150 can be formed by secondary injection molding. Thereby, the process can be reduced to improve the production efficiency of the two-color mold lens 100.
透光部130的光學有效區133的二表面中至少一表面可為非球面，即是光學有效區133在雙色模造透鏡100的物側表面101及像側表面102中至少一表面可為非球面。藉此，有助於減少像差。第一實施例的雙色模造透鏡100中，光學有效區133的二表面皆為非球面，即是光學有效區133在雙色模造透鏡100的物側表面101及像側表面102皆為非球面。 At least one of the two surfaces of the optical effective area 133 of the light transmitting portion 130 may be aspherical, that is, the optical effective area 133 may be aspherical at least one of the object side surface 101 and the image side surface 102 of the two-color mold lens 100. . This helps to reduce aberrations. In the two-color mold lens 100 of the first embodiment, both surfaces of the optical effective area 133 are aspherical, that is, the optical effective area 133 is aspherical on both the object side surface 101 and the image side surface 102 of the two-color mold lens 100.
光線吸收部150可更包含抗反射膜層158，其鍍在光線吸收部150上未與透光部130接觸的至少部分表面，即是抗反射膜層158鍍在光線吸收部150上未與透光部130連接的部分表面或全部表面，抗反射膜層158可鍍在像側表面102上的光線吸收部150、透鏡外緣面105上的光線吸收部150或鍍在前述二者上。藉此，可降低雙色模造透鏡100表面的反射程度。此外，抗反射膜層(未另標號)亦可鍍在像側表面102上的透光部130。第一實施例中的雙色模造透鏡100中，抗反射膜層158鍍在像側表面102上的光線吸收部150的全部表面，其未與透光部130接觸。再者，抗反射膜層158可為多層二氧化矽(SiO2)與多層二氧化鈦(TiO2)材 質以蒸鍍方式交互層疊附著於光線吸收部150的表面，且材質、附著層數與附著方式可視需求而調整。 The light absorbing portion 150 may further include an anti-reflection film layer 158 plated on at least a portion of the surface of the light absorbing portion 150 that is not in contact with the light transmitting portion 130, that is, the anti-reflective film layer 158 is not plated on the light absorbing portion 150. The partial or total surface of the portion where the light portion 130 is connected, the anti-reflection film layer 158 may be plated on the light absorbing portion 150 on the image side surface 102, the light absorbing portion 150 on the lens outer edge surface 105, or plated on both of them. Thereby, the degree of reflection of the surface of the two-color molded lens 100 can be reduced. Further, an anti-reflection film layer (not otherwise labeled) may be plated on the light transmitting portion 130 on the image side surface 102. In the two-color molded lens 100 of the first embodiment, the anti-reflection film layer 158 is plated on the entire surface of the light absorbing portion 150 on the image side surface 102, which is not in contact with the light transmitting portion 130. Furthermore, the anti-reflective film layer 158 may be a plurality of layers of cerium oxide (SiO2) and a plurality of layers of titanium dioxide (TiO2) which are alternately laminated on the surface of the light absorbing portion 150 by vapor deposition, and the material, the number of layers and the manner of adhesion may be visually required. And adjust.
請參照第1C圖，第1C圖繪示第一實施例中的雙色模造透鏡100的立體圖。由第1C圖可知，透光部130的第一外緣面135可包含注料痕(gate trace)136，其中注料痕136可以是澆口注料的痕跡、注料口的切口痕跡、或凸出外型的注料口切口，但不以此為限，亦不限定注料形式，模具設計可以有注料流量上的差異。藉此，可使成型後透光部130的光學有效區133的光學品質獲得更多控制，使量產品質穩定。 Referring to FIG. 1C, FIG. 1C is a perspective view of the two-color molded lens 100 in the first embodiment. As can be seen from FIG. 1C, the first outer edge surface 135 of the light transmitting portion 130 may include a gate trace 136, wherein the injection mark 136 may be a mark of a gate injection, a slit mark of the injection port, or The injection port cut of the outer shape is protruded, but not limited thereto, and the form of the injection is not limited, and the mold design may have a difference in the flow rate of the injection. Thereby, the optical quality of the optical effective area 133 of the light transmitting portion 130 after molding can be more controlled, and the mass of the product can be stabilized.
請參照第1D圖及第1E圖，第1D圖繪示第1C圖的雙色模造透鏡100的俯視圖，第1E圖繪示依照第1D圖剖面線1E-1E的剖視圖。由第1C圖至第1E圖可知，光線吸收部150的第二外緣面155可包含凹縮部157，其為第二外緣面155上朝向光軸凹縮的部分，即是凹縮部157上的一點和光軸的距離較第二外緣面155的凹縮部157以外的一點和光軸的距離為小。藉此，在成像鏡頭1000的自動化流程中，可以凹縮部157的特徵辨識雙色模造透鏡100的位置。 1D and 1E, FIG. 1D is a plan view of the two-color mold lens 100 of FIG. 1C, and FIG. 1E is a cross-sectional view of the hatching line 1E-1E according to FIG. 1D. It can be seen from FIG. 1C to FIG. 1E that the second outer edge surface 155 of the light absorbing portion 150 may include a concavity portion 157 which is a portion of the second outer edge surface 155 which is recessed toward the optical axis, that is, a concavity portion. The distance between the point on the 157 and the optical axis is smaller than the distance from the point other than the concave portion 157 of the second outer edge surface 155 and the optical axis. Thereby, in the automated flow of the imaging lens 1000, the position of the two-color molded lens 100 can be recognized by the feature of the concavity 157.
由第1D圖可知，第二外緣面155上的一點和光軸的距離與凹縮部157上的一點和光軸的距離的最大差值為h，其可滿足下列條件：0.05mm<h<0.30mm。藉此，由凹縮部157維持特定的凹縮程度，以達成較佳的遮光效果。再者，光線吸收部150的開孔154為圓形。 As can be seen from Fig. 1D, the maximum difference between the distance between the point on the second outer peripheral surface 155 and the optical axis and the distance between the point on the concave portion 157 and the optical axis is h, which satisfies the following condition: 0.05 mm < h < 0.30 Mm. Thereby, a certain degree of concavity is maintained by the concavity portion 157 to achieve a better shading effect. Furthermore, the opening 154 of the light absorbing portion 150 is circular.
由第1C圖可知，第二外緣面155的凹縮部157可與第一外緣面135的注料痕136對應設置。藉此，有利於自動化生產的流程，使雙色模造透鏡100的剪切作業較易進行。 As can be seen from FIG. 1C, the recessed portion 157 of the second outer peripheral surface 155 can be disposed corresponding to the shot mark 136 of the first outer peripheral surface 135. Thereby, the process of automated production is facilitated, and the shearing operation of the two-color mold lens 100 is facilitated.
請參照第1F圖，第1F圖繪示依照第1D圖剖面線1F-1F的剖視圖。由第1F圖可知，第二外緣面155在平行光軸方向上的寬度為dB，其可滿足下列條件：0.05mm<dB<0.60mm。藉此，可維持雙色模造透鏡100尺寸精度的穩定性。 Referring to FIG. 1F, FIG. 1F is a cross-sectional view taken along line 1F-1F of FIG. 1D. As can be seen from Fig. 1F, the width of the second outer edge surface 155 in the direction of the parallel optical axis is dB, which satisfies the following condition: 0.05 mm < dB < 0.60 mm. Thereby, the dimensional accuracy of the two-color mold lens 100 can be maintained.
第一外緣面135在平行光軸方向上的寬度為dW，第二外緣面155在平行光軸方向上的寬度為dB，其可滿足下列條件：0.4<dB/dW<2.0。藉此，可維持雙色模造透鏡100整體結構的穩定度及平面度，以避免雙色模造透鏡100厚度太薄而產生翹曲。 The width of the first outer edge surface 135 in the direction of the parallel optical axis is dW, and the width of the second outer edge surface 155 in the direction of the parallel optical axis is dB, which satisfies the following condition: 0.4 < dB / dW < 2.0. Thereby, the stability and flatness of the overall structure of the two-color mold lens 100 can be maintained, so that the thickness of the two-color mold lens 100 is prevented from being too thin to cause warpage.
第二外緣面155上的階差面156可包含平直面159，其與光軸方向垂直。藉此，有助於雙色模造透鏡100射出成型的模具設計。 The step surface 156 on the second outer edge surface 155 can include a flat surface 159 that is perpendicular to the optical axis direction. Thereby, the mold design for the two-color molding lens 100 to be injection molded is facilitated.
進一步來說，由第1A圖可知，成像鏡頭1000的透鏡的數量為N，其可滿足下列條件：5N<10。藉此，可使成像鏡頭1000提供更好的影像解析能力，以滿足更多拍攝需求。第一實施例中，成像鏡頭1000由物側至像側依序包含雙色模造透鏡100、透鏡1101、1102、1103、1104及雙色模造透鏡200，其中成像鏡頭1000的透鏡的數量為六片。在其他實施例中(圖未揭示)，成像鏡頭的透鏡的數量可 為五片、七片、八片或其他更多的透鏡數量。此外，成像鏡頭1000可更包含鏡筒1200，使成像鏡頭1000的六片透鏡置於鏡筒1200中，以遮擋大量額外雜散光，降低其進入光學有效區以外的部位，避免在透鏡結構間徒增無謂的反射。 Further, as can be seen from FIG. 1A, the number of lenses of the imaging lens 1000 is N, which can satisfy the following conditions: 5 N<10. Thereby, the imaging lens 1000 can be provided with better image resolution capability to meet more shooting needs. In the first embodiment, the imaging lens 1000 sequentially includes a two-color molded lens 100, lenses 1101, 1102, 1103, 1104 and a two-color molded lens 200 from the object side to the image side, wherein the number of lenses of the imaging lens 1000 is six. In other embodiments (not shown), the number of lenses of the imaging lens may be five, seven, eight, or other more lenses. In addition, the imaging lens 1000 may further include a lens barrel 1200, so that the six lenses of the imaging lens 1000 are placed in the lens barrel 1200 to block a large amount of extra stray light, reducing its entry into the optical effective area, and avoiding the lens structure. Add unnecessary reflections.
請一併參照下列表一，其表列本發明第一實施例的成像鏡頭1000及雙色模造透鏡100依據前述參數定義的數據，並如第1B圖、第1D圖及第1F圖所繪示。 Referring to Table 1 below, the imaging lens 1000 and the two-color molded lens 100 according to the first embodiment of the present invention are listed in accordance with the data defined by the foregoing parameters, and are illustrated in FIG. 1B, FIG. 1D, and FIG.
接著說明成像鏡頭1000中的雙色模造透鏡200，請參照第1G圖，其繪示第一實施例中的雙色模造透鏡200的示意圖。由第1A圖及第1G圖可知，雙色模造透鏡200包含透光部230及光線吸收部250，即是經過二次射出成型後而製成包含透光部230及光線吸收部250的雙色模造透鏡200。 Next, a two-color molded lens 200 in the imaging lens 1000 will be described. Referring to FIG. 1G, a schematic view of the two-color molded lens 200 in the first embodiment is shown. As is apparent from FIGS. 1A and 1G, the two-color mold lens 200 includes the light transmitting portion 230 and the light absorbing portion 250, that is, a two-color molded lens including the light transmitting portion 230 and the light absorbing portion 250 after the second injection molding. 200.
雙色模造透鏡200上有物側表面201、像側表面202及透鏡外緣面205，其中物側表面201為雙色模造透鏡200面向被攝物的表面，像側表面202為雙色模造透鏡200面向成像面的表面，透鏡外緣面205連接物側表面201及像側表面202並呈環狀。 The two-color mold lens 200 has an object side surface 201, an image side surface 202, and a lens outer edge surface 205, wherein the object side surface 201 is a surface of the two-color mold lens 200 facing the object, and the image side surface 202 is a two-color mold lens 200 facing the image. The surface of the surface, the lens outer surface 205, the connecting side surface 201 and the image side surface 202 are annular.
透光部230包含光學有效區233及第一外緣面235，成像光線通過光學有效區233並於成像面形成影像，第一外緣面235位於雙色模造透鏡200的透鏡外緣面205上。 The light transmitting portion 230 includes an optical effective area 233 and a first outer edge surface 235. The imaging light passes through the optical effective area 233 and forms an image on the imaging surface, and the first outer edge surface 235 is located on the lens outer surface 205 of the two-color molding lens 200.
光線吸收部250位於雙色模造透鏡200的物側表面201及像側表面202中的一表面(第一實施例的雙色模造透鏡200中，所述表面為像側表面202)，光線吸收部250的塑膠材質及顏色與透光部230的塑膠材質及顏色不同。第一實施例的雙色模造透鏡200中，光線吸收部250的塑膠材質具有吸收可見光線性質，其顏色為黑色，透光部230的塑膠材質具有可見光線穿透性質，其顏色為透明無色，故光線吸收部250的塑膠材質及顏色與透光部230的塑膠材質及顏色不同。 The light absorbing portion 250 is located on one of the object side surface 201 and the image side surface 202 of the two-color mold lens 200 (in the two-color mold lens 200 of the first embodiment, the surface is the image side surface 202), and the light absorbing portion 250 The plastic material and color are different from the plastic material and color of the light transmitting portion 230. In the two-color molding lens 200 of the first embodiment, the plastic material of the light absorbing portion 250 has the property of absorbing visible light, the color of which is black, and the plastic material of the light transmitting portion 230 has visible light transmission property, and the color thereof is transparent and colorless. The plastic material and color of the light absorbing portion 250 are different from the plastic material and color of the light transmitting portion 230.
由第1G圖可知，光線吸收部250包含開孔254及第二外緣面255。開孔254與光學有效區233對應設置，以使成像光線通過光學有效區233於成像面形成影像。 As can be seen from Fig. 1G, the light absorbing portion 250 includes an opening 254 and a second outer surface 255. The aperture 254 is disposed corresponding to the optical active area 233 to cause imaging light to form an image on the imaging surface through the optically effective area 233.
第二外緣面255位於雙色模造透鏡200的透鏡外緣面205上並連接第一外緣面235，且第二外緣面255與第一外緣面235形成第二外緣面255的階差面256，即是在透鏡外緣面205上的至少一處，第二外緣面255較第一外緣面235凸出以形成第二外緣面255的階差面256。藉由成像鏡頭1000中具有二個雙色模造透鏡100及200，可更加抑制雜散光以提升成像鏡頭1000的成像品質，並更加有利於成像鏡頭1000的小型化與遮光效率之間的平衡。 The second outer edge surface 255 is located on the lens outer edge surface 205 of the two-color mold lens 200 and is connected to the first outer edge surface 235, and the second outer edge surface 255 and the first outer edge surface 235 form a second outer edge surface 255. The difference surface 256 is at least one of the outer surface 205 of the lens, and the second outer edge surface 255 protrudes from the first outer edge surface 235 to form a step surface 256 of the second outer edge surface 255. By having two two-color molded lenses 100 and 200 in the imaging lens 1000, stray light can be further suppressed to improve the imaging quality of the imaging lens 1000, and the balance between miniaturization and shading efficiency of the imaging lens 1000 is further facilitated.
詳細來說，透光部230的光學有效區233的二表面皆為非球面，即是光學有效區233在雙色模造透鏡200的物側表面201及像側表面202皆為非球面。 In detail, both surfaces of the optical effective area 233 of the light transmitting portion 230 are aspherical, that is, the optical effective area 233 is aspherical on both the object side surface 201 and the image side surface 202 of the two-color mold lens 200.
光線吸收部250更包含抗反射膜層258(圖未如第一實施例之抗反射膜層158以粗線揭示)，抗反射膜層258鍍在像側表面202上的光線吸收部250的全部表面，其未與透光部230接觸。 The light absorbing portion 250 further includes an anti-reflection film layer 258 (not shown in the thick line as the anti-reflection film layer 158 of the first embodiment), and the anti-reflection film layer 258 is plated on the image-side surface 202. The surface is not in contact with the light transmitting portion 230.
請參照第1H圖及第1I圖，第1H圖繪示第一實施例中的雙色模造透鏡200的立體圖，第1I圖繪示第1H圖的雙色模造透鏡200的俯視圖。由第1H圖及第1I圖可知，光線吸收部250的開孔254可為非圓形。藉此，可在不影響成像的前提下增加遮光範圍，並有助於提高雙色模造透鏡200的製作良率。第一實施例的雙色模造透鏡200中，開孔254為八邊形。藉此，有助於增加透光部230與光線吸收部250之間的接觸面積，以提高雙色模造透鏡200的製作良率並兼顧成像品質。 1H and 1I, FIG. 1H is a perspective view of the two-color mold lens 200 of the first embodiment, and FIG. 1I is a plan view of the two-color mold lens 200 of FIG. As can be seen from FIGS. 1H and 1I, the opening 254 of the light absorbing portion 250 can be non-circular. Thereby, the shading range can be increased without affecting the imaging, and the manufacturing yield of the two-color molding lens 200 can be improved. In the two-color molded lens 200 of the first embodiment, the opening 254 is octagonal. Thereby, it is helpful to increase the contact area between the light transmitting portion 230 and the light absorbing portion 250, thereby improving the production yield of the two-color molding lens 200 and achieving the image quality.
請參照第1J圖，第1J圖繪示依照第1I圖剖面線1J-1J的剖視圖。由第1H圖至第1J圖可知，透光部230的第一外緣面235包含注料痕236。光線吸收部250的第二外緣面255包含凹縮部257，其為第二外緣面255上朝向光軸凹縮的部分，即是凹縮部257上的一點和光軸的距離較第二外緣面255的凹縮部257以外的一點和光軸的距離為小。 Please refer to FIG. 1J, and FIG. 1J is a cross-sectional view taken along line 1J-1J of FIG. As can be seen from FIGS. 1H to 1J, the first outer edge surface 235 of the light transmitting portion 230 includes the filler mark 236. The second outer peripheral surface 255 of the light absorbing portion 250 includes a concavity portion 257 which is a portion of the second outer peripheral surface 255 which is recessed toward the optical axis, that is, a point on the concavity portion 257 and a distance from the optical axis are second. The distance from the point other than the concave portion 257 of the outer edge surface 255 to the optical axis is small.
由第1H圖可知，第二外緣面255的凹縮部257與第一外緣面235的注料痕236對應設置。 As can be seen from Fig. 1H, the recessed portion 257 of the second outer peripheral surface 255 is provided corresponding to the fill mark 236 of the first outer peripheral surface 235.
請參照第1K圖，第1K圖繪示依照第1I圖剖面線1K-1K的剖視圖。由第1K圖可知，第二外緣面255上的階差面256包含平直面259，其與光軸方向垂直。 Referring to FIG. 1K, FIG. 1K is a cross-sectional view taken along line 1K-1K of FIG. As can be seen from Fig. 1K, the step surface 256 on the second outer edge surface 255 includes a flat surface 259 which is perpendicular to the optical axis direction.
請一併參照下列表二，其表列本發明第一實施例的成像鏡頭1000及雙色模造透鏡200參數dB、dW、h、N、ψB、ψW、dB/dW、(ψB-ψW)/2及ψW/ψB的數據，各參數之定義皆與第一實施例的雙色模造透鏡100相同，並如第1G圖、第1I圖及第1K圖所繪示。 Referring to Table 2 below, the imaging lens 1000 and the two-color molded lens 200 of the first embodiment of the present invention are listed as parameters dB, dW, h, N, ψB, ψW, dB/dW, (ψB-ψW)/2. And the data of ψW/ψB, the definition of each parameter is the same as that of the two-color molded lens 100 of the first embodiment, and is shown in FIG. 1G, FIG. 1I and FIG. 1K.
請參照第2A圖，其繪示本發明第二實施例的成像鏡頭3000的示意圖。由第2A圖可知，成像鏡頭3000包含複數透鏡，透鏡中的一者為雙色模造透鏡300。 Referring to FIG. 2A, a schematic diagram of an imaging lens 3000 according to a second embodiment of the present invention is shown. As can be seen from FIG. 2A, the imaging lens 3000 includes a plurality of lenses, one of which is a two-color molded lens 300.
請參照第2B圖，其繪示第二實施例中的雙色模造透鏡300的示意圖。由第2A圖及第2B圖可知，雙色模造透鏡300包含透光部330及光線吸收部350，即是經過二次射出成型後而製成包含透光部330及光線吸收部350的雙色模造透鏡300。 Referring to FIG. 2B, a schematic diagram of the two-color molded lens 300 in the second embodiment is shown. 2A and 2B, the two-color molded lens 300 includes a light transmitting portion 330 and a light absorbing portion 350, that is, a two-color molded lens including a light transmitting portion 330 and a light absorbing portion 350 after secondary injection molding. 300.
雙色模造透鏡300上有物側表面301、像側表面302及透鏡外緣面305，其中物側表面301為雙色模造透鏡 300面向被攝物(圖未揭示)的表面，像側表面302為雙色模造透鏡300面向成像面(圖未揭示)的表面，透鏡外緣面305連接物側表面301及像側表面302並呈環狀。 The two-color mold lens 300 has an object side surface 301, an image side surface 302, and a lens outer edge surface 305, wherein the object side surface 301 is a surface of the two-color mold lens 300 facing the object (not shown), and the image side surface 302 is two-color. The mold lens 300 faces the surface of the image forming surface (not shown), and the lens outer surface 305 is connected to the object side surface 301 and the image side surface 302 in a ring shape.
透光部330包含光學有效區333及第一外緣面335，成像光線通過光學有效區333並於成像面形成影像，第一外緣面335位於雙色模造透鏡300的透鏡外緣面305上。 The light transmitting portion 330 includes an optical effective area 333 and a first outer edge surface 335. The imaging light passes through the optical effective area 333 and forms an image on the imaging surface. The first outer edge surface 335 is located on the lens outer surface 305 of the two-color molding lens 300.
光線吸收部350位於雙色模造透鏡300的物側表面301及像側表面302中的一表面(第二實施例的雙色模造透鏡300中，所述表面為物側表面301)，光線吸收部350的塑膠材質及顏色與透光部330的塑膠材質及顏色不同。第二實施例的雙色模造透鏡300中，光線吸收部350的塑膠材質具有吸收可見光線性質，其顏色為黑色，透光部330的塑膠材質具有可見光線穿透性質，其顏色為透明無色，故光線吸收部350的塑膠材質及顏色與透光部330的塑膠材質及顏色不同。 The light absorbing portion 350 is located on one of the object side surface 301 and the image side surface 302 of the two-color mold lens 300 (in the two-color mold lens 300 of the second embodiment, the surface is the object side surface 301), and the light absorbing portion 350 The plastic material and color are different from the plastic material and color of the light transmitting portion 330. In the two-color molding lens 300 of the second embodiment, the plastic material of the light absorbing portion 350 has the property of absorbing visible light, the color of which is black, and the plastic material of the light transmitting portion 330 has visible light transmission property, and the color thereof is transparent and colorless. The plastic material and color of the light absorbing portion 350 are different from the plastic material and color of the light transmitting portion 330.
由第2B圖可知，光線吸收部350包含開孔354及第二外緣面355。開孔354與光學有效區333對應設置，以使成像光線通過光學有效區333於成像面形成影像。 As can be seen from FIG. 2B, the light absorbing portion 350 includes an opening 354 and a second outer peripheral surface 355. The aperture 354 is disposed corresponding to the optical effective area 333 to allow imaging light to form an image on the imaging surface through the optical effective area 333.
第二外緣面355位於雙色模造透鏡300的透鏡外緣面305上並連接第一外緣面335，且第二外緣面355與第一外緣面335形成第二外緣面355的階差面356，即是在透鏡外緣面305上的至少一處，第二外緣面355較第一外緣面335凸出以形成第二外緣面355的階差面356。 The second outer peripheral surface 355 is located on the lens outer peripheral surface 305 of the two-color molded lens 300 and is connected to the first outer peripheral surface 335, and the second outer peripheral surface 355 and the first outer peripheral surface 335 form a second outer peripheral surface 355. The difference surface 356 is at least one of the outer surface 305 of the lens, and the second outer edge surface 355 protrudes from the first outer edge surface 335 to form a step surface 356 of the second outer edge surface 355.
詳細來說，透光部330的光學有效區333的二表面皆為非球面，即是光學有效區333在雙色模造透鏡300的物側表面301及像側表面302皆為非球面。 In detail, both surfaces of the optical effective area 333 of the light transmitting portion 330 are aspherical, that is, the optical effective area 333 is aspherical on both the object side surface 301 and the image side surface 302 of the two-color molding lens 300.
光線吸收部350更包含抗反射膜層358(圖未如第一實施例之抗反射膜層158以粗線揭示)，抗反射膜層358鍍在物側表面301上的光線吸收部350的全部表面，其未與透光部330接觸。 The light absorbing portion 350 further includes an anti-reflection film layer 358 (not shown in the thick line as the anti-reflection film layer 158 of the first embodiment), and the anti-reflection film layer 358 is entirely plated on the object side surface 301. The surface is not in contact with the light transmitting portion 330.
請參照第2C圖，第2C圖繪示第二實施例中的雙色模造透鏡300的立體圖。由第2C圖可知，透光部330的第一外緣面335包含注料痕336。 Referring to FIG. 2C, FIG. 2C is a perspective view of the two-color molded lens 300 in the second embodiment. As can be seen from FIG. 2C, the first outer edge surface 335 of the light transmitting portion 330 includes a shot mark 336.
請參照第2D圖，第2D圖繪示第2C圖的雙色模造透鏡300的俯視圖。由第2D圖可知，光線吸收部350的開孔354為圓形。 Referring to FIG. 2D, FIG. 2D is a plan view showing the two-color mold lens 300 of FIG. 2C. As can be seen from Fig. 2D, the opening 354 of the light absorbing portion 350 is circular.
請參照第2E圖，第2E圖繪示依照第2D圖剖面線2E-2E的剖視圖。由第2C圖至第2E圖可知，光線吸收部350的第二外緣面355包含凹縮部357，其為第二外緣面355上朝向光軸凹縮的部分，即是凹縮部357上的一點和光軸的距離較第二外緣面355的凹縮部357以外的一點和光軸的距離為小。 Please refer to FIG. 2E, and FIG. 2E is a cross-sectional view taken along line 2E-2E of FIG. 2D. 2C to 2E, the second outer peripheral surface 355 of the light absorbing portion 350 includes a recessed portion 357 which is a portion of the second outer peripheral surface 355 which is recessed toward the optical axis, that is, the recessed portion 357. The distance between the upper point and the optical axis is smaller than the distance between the point other than the concave portion 357 of the second outer edge surface 355 and the optical axis.
由第2C圖可知，第二外緣面355的凹縮部357與第一外緣面335的注料痕336對應設置。 2C, the recessed portion 357 of the second outer peripheral surface 355 is disposed corresponding to the injection mark 336 of the first outer peripheral surface 335.
請參照第2F圖，第2F圖繪示依照第2D圖剖面線2F-2F的剖視圖。由第2F圖可知，第二外緣面355上的階差面356包含平直面359，其與光軸方向垂直。 Please refer to FIG. 2F, and FIG. 2F is a cross-sectional view taken along line 2F-2F of FIG. 2D. As can be seen from Fig. 2F, the step surface 356 on the second outer edge surface 355 includes a flat surface 359 which is perpendicular to the optical axis direction.
進一步來說，由第2A圖可知，成像鏡頭3000由物側至像側依序包含透鏡3101、3102、雙色模造透鏡300、透鏡3103及3104，其中成像鏡頭3000的透鏡的數量為五片。此外，成像鏡頭3000更包含鏡筒3200，其中成像鏡頭3000的五片透鏡置於鏡筒3200中，請一併參照下列表三，其表列本發明第二實施例的成像鏡頭3000參數dB、dW、h、N、ψB、ψW、dB/dW、(ψB-ψW)/2及ψW/ψB的數據，各參數之定義皆與第一實施例的雙色模造透鏡100相同，並如第2B圖、第2D圖及第2F圖所繪示。 Further, as can be seen from FIG. 2A, the imaging lens 3000 sequentially includes the lenses 3101, 3102, the two-color molded lens 300, the lenses 3103 and 3104 from the object side to the image side, wherein the number of lenses of the imaging lens 3000 is five. In addition, the imaging lens 3000 further includes a lens barrel 3200 in which five lenses of the imaging lens 3000 are placed in the lens barrel 3200. Referring to the following Table 3, the imaging lens 3000 of the second embodiment of the present invention has a parameter dB, Data of dW, h, N, ψB, ψW, dB/dW, (ψB-ψW)/2, and ψW/ψB, the definition of each parameter is the same as that of the two-color molded lens 100 of the first embodiment, and as shown in FIG. 2B , 2D and 2F are shown.
請參照第3圖，其繪示本發明第三實施例的電子裝置10的示意圖。第三實施例的電子裝置10係一智慧型手機，電子裝置10包含成像鏡頭模組11，成像鏡頭模組11包含依據本發明的成像鏡頭(圖未揭示)。藉此，以具有良好的成像品質，故能滿足現今對電子裝置的高規格的成像需求。此外，成像鏡頭模組11可更包含電子感光元件(圖未揭示)，其設置的位置係位於或鄰近成像鏡頭的成像面(圖未揭示)。較佳地，電子裝置10可進一步包含但不限於顯示單元 (Display)、控制單元(Control Unit)、儲存單元(Storage Unit)、暫儲存單元(RAM)、唯讀儲存單元(ROM)或其組合。 Please refer to FIG. 3, which is a schematic diagram of an electronic device 10 according to a third embodiment of the present invention. The electronic device 10 of the third embodiment is a smart phone, and the electronic device 10 includes an imaging lens module 11 including an imaging lens (not shown) according to the present invention. Thereby, with good image quality, it can meet the high-standard imaging requirements of electronic devices today. In addition, the imaging lens module 11 may further include an electronic photosensitive element (not shown) disposed at or adjacent to an imaging surface of the imaging lens (not shown). Preferably, the electronic device 10 may further include, but is not limited to, a display unit, a control unit, a storage unit, a temporary storage unit (RAM), a read only storage unit (ROM), or a combination thereof. .
請參照第4圖，其繪示本發明第四實施例的電子裝置20的示意圖。第四實施例的電子裝置20係一平板電腦，電子裝置20包含成像鏡頭模組21，成像鏡頭模組21包含依據本發明的成像鏡頭(圖未揭示)以及電子感光元件(圖未揭示)，其中電子感光元件設置於成像鏡頭的成像面(圖未揭示)。 Please refer to FIG. 4, which is a schematic diagram of an electronic device 20 according to a fourth embodiment of the present invention. The electronic device 20 of the fourth embodiment is a tablet computer. The electronic device 20 includes an imaging lens module 21 including an imaging lens (not shown) and an electronic photosensitive element (not shown) according to the present invention. The electronic photosensitive element is disposed on an imaging surface of the imaging lens (not shown).
請參照第5圖，其繪示本發明第五實施例的電子裝置30的示意圖。第六實施例的電子裝置30係一穿戴裝置(Wearable Device)，電子裝置30包含成像鏡頭模組31，成像鏡頭模組31包含依據本發明的成像鏡頭(圖未揭示)以及電子感光元件(圖未揭示)，其中電子感光元件設置於成像鏡頭的成像面(圖未揭示)。 Referring to FIG. 5, a schematic diagram of an electronic device 30 according to a fifth embodiment of the present invention is shown. The electronic device 30 of the sixth embodiment is a wearable device. The electronic device 30 includes an imaging lens module 31. The imaging lens module 31 includes an imaging lens (not shown) and an electronic photosensitive element according to the present invention. Not disclosed), wherein the electronic photosensitive element is disposed on an imaging surface of the imaging lens (not shown).
雖然本發明已以實施方式揭露如上，然其並非用以限定本發明，任何熟習此技藝者，在不脫離本發明的精神和範圍內，當可作各種的更動與潤飾，因此本發明的保護範圍當視後附的申請專利範圍所界定者為準。 While the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and the invention may be modified and modified in various ways without departing from the spirit and scope of the invention. The scope is subject to the definition of the scope of the patent application.
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| TWI698700B (en) * | 2019-08-13 | 2020-07-11 | 大立光電股份有限公司 | Plastic lens barrel, imaging lens assembly and electronic device |
| TWI728769B (en) * | 2020-03-31 | 2021-05-21 | 大陽科技股份有限公司 | Lens driving apparatus and electronic device |
| TWI728585B (en) * | 2019-12-06 | 2021-05-21 | 大立光電股份有限公司 | Imaging lens assembly and electronic device |
| TWI808479B (en) * | 2021-07-16 | 2023-07-11 | 大立光電股份有限公司 | Lens assembly, optical unit and electronic device |
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| TW200624872A (en) | 2005-01-12 | 2006-07-16 | Exquisite Optical Technology Co Ltd | Lens precisely aligning with image capturing lens |
| CN203894464U (en) | 2011-09-29 | 2014-10-22 | 富士胶片株式会社 | Imaging lens and imaging equipment |
| TW201516480A (en) | 2013-10-16 | 2015-05-01 | 玉晶光電股份有限公司 | Lens, optical imaging lens set and method for forming a lens |
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| TWI692400B (en) * | 2018-12-14 | 2020-05-01 | 大立光電股份有限公司 | Optical lens assembly and electronic device |
| CN111323854A (en) * | 2018-12-14 | 2020-06-23 | 大立光电股份有限公司 | Optical lens and electronic device |
| US11245824B2 (en) | 2018-12-14 | 2022-02-08 | Largan Precision Co., Ltd. | Optical lens assembly and electronic device |
| CN111323854B (en) * | 2018-12-14 | 2022-09-02 | 大立光电股份有限公司 | Optical lens and electronic device |
| US11671689B2 (en) | 2018-12-14 | 2023-06-06 | Largan Precision Co., Ltd. | Optical lens assembly and electronic device |
| TWI698700B (en) * | 2019-08-13 | 2020-07-11 | 大立光電股份有限公司 | Plastic lens barrel, imaging lens assembly and electronic device |
| TWI728585B (en) * | 2019-12-06 | 2021-05-21 | 大立光電股份有限公司 | Imaging lens assembly and electronic device |
| TWI728769B (en) * | 2020-03-31 | 2021-05-21 | 大陽科技股份有限公司 | Lens driving apparatus and electronic device |
| TWI808479B (en) * | 2021-07-16 | 2023-07-11 | 大立光電股份有限公司 | Lens assembly, optical unit and electronic device |
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| TW201812344A (en) | 2018-04-01 |
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