TWI633380B - Optical lens assembly, imaging lens module and electronic apparatus - Google Patents

Abstract

An optical lens set comprising at least two lenses and at least one light shielding film. The two lenses respectively include a joint structure for aligning the two lenses, wherein each of the joint structures includes a receiving surface and a conical surface. The receiving surfaces of the two lenses are connected to each other, and the conical surfaces of the two lenses are connected to each other, so that a receiving space is formed between the two lenses, and the vertical distance between the receiving space and the optical axis is shorter than the vertical distance between the conical surfaces and the optical axis. The light shielding sheet is received in the receiving space and has a polygonal opening, wherein the outer diameter of the light shielding sheet is smaller than the outer diameter of each lens, and the outer diameter of the light shielding sheet is less than or equal to the minimum diameter of the conical surface of each lens. When certain conditions are met, an optical image of better quality can be obtained.

Description

Optical lens group, imaging lens and electronic device

The present invention relates to an optical lens set and an imaging lens, and more particularly to an optical lens set and an imaging lens for use in a portable electronic device.

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.

The light shielding film generally mounted in the imaging lens is used to shield unnecessary light inside the imaging lens. However, when photographing in a high-intensity light source environment, the conventional shading sheet has a limited shielding effect, and it is easy to generate a non-actual image spot.

Furthermore, the light shielding film generally mounted in the imaging lens is disposed between two adjacent lenses, but the overlapping structure between adjacent lenses and the fitting structure of each lens and the light shielding film are unstable, which often leads to the lens and The visor is deformed by an external force.

The invention provides an optical lens group, an imaging lens and an electronic device, which can obtain a better quality optical image in a state of use of a strong-powered knee-power source, and more accurately shield a specific light beam, so that the imaging effect of the light source is observed by the naked eye. The images are similar. Furthermore, by aligning the lens and the lap mask by the joint structure and the receiving space, the manufacturing precision is improved and the component is prevented from being deformed by an external force.

According to the present invention, there is provided an optical lens set comprising at least two lenses and at least one light shielding sheet. The two lenses respectively comprise a joint structure for aligning the two lenses, wherein each of the joint structures comprises a receiving surface and a conical surface. The receiving surfaces of the two lenses are connected to each other, and the conical surfaces of the two lenses are connected to each other, so that a receiving space is formed between the two lenses, and the vertical distance between the receiving space and the optical axis is shorter than the vertical distance between the conical surfaces and the optical axis. The light shielding sheet is received in the receiving space and has a polygonal opening, wherein the outer diameter of the light shielding sheet is smaller than the outer diameter of each lens, and the outer diameter of the light shielding sheet is less than or equal to the minimum diameter of the conical surface of each lens. The polygonal opening has a plurality of inner sides, and less than 90 degrees of the outer corners formed by the adjacent two inner edges is θ, which satisfies the following condition: 9.0 degrees < θ < 33.0 degrees. Thereby, the optical image with better quality can be obtained under the use state of the strong-shooting strong light source, and the specific light beam can be shielded more accurately, so that the imaging effect of the light source is closer to the image observed by the naked eye.

The optical lens set according to the preceding paragraph, wherein the light shielding sheet is a composite light shielding sheet comprising a first surface layer, a second surface layer and an inner substrate layer. The first surface layer has a first opening. The second surface layer has a second opening. The inner substrate layer has a substrate opening, and the inner substrate layer is located between the first surface layer and the second surface layer, and connects the first surface layer and the second surface Surface layer. The first opening, the second opening and the substrate opening are arranged along the optical axis to form a polygonal opening. The inner substrate layer may be made of a plastic material, and the first surface layer and the second surface layer may both be black carbonaceous materials. The angle between the conical surface of each lens and the optical axis is β, which satisfies the following conditions: 0 degree < β < 40 degrees. Each lens may further comprise a flat surface corresponding to the receiving space and perpendicular to the optical axis. At least one lens of the optical lens group is aligned with the light shielding sheet through the conical surface thereon. The inner diameter of the polygonal opening of the light shielding sheet is φi, and the outer diameter of the light shielding sheet is φ, which satisfies the following condition: 0.47 < φi / φ < 0.90; preferably, it satisfies the following condition: 0.55 < φi / φ < 0.90.

According to the present invention, there is provided an imaging lens comprising a lens barrel and the above optical lens group, wherein the optical lens group is disposed in the lens barrel. The polygonal opening of the optical lens of the optical lens group corresponds to a minimum central opening of the lens barrel, and the minimum central opening is an aperture of the imaging lens.

According to the present invention, there is provided an electronic device comprising the above-described imaging lens and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on an imaging surface of the imaging lens.

According to the present invention, there is further provided an imaging lens comprising a lens barrel and an optical lens group, wherein the optical lens group is disposed in the lens barrel. The optical lens set includes a plurality of lenses and at least one light shielding film, wherein the light shielding film has a polygonal opening, and the polygonal opening corresponds to a minimum central opening of the lens barrel. The polygonal opening has a plurality of inner sides, the inner diameter of the polygonal opening of the light shielding sheet is φi, the length of each inner side is s, and the number of lenses is N, which satisfies the following condition: 7.1 < φi / (s / 2) <30; and 5 N 9. Therefore, with the light shielding sheet satisfying the above characteristics, an optical image of better quality can be obtained when the environment of the strong-powered light source is used, and the specific light beam can be shielded more accurately, so that the imaging effect of the light source is closer to the image observed by the naked eye. .

According to the imaging lens of the preceding paragraph, the light shielding sheet may be a composite light shielding sheet comprising a first surface layer, a second surface layer and an inner substrate layer, wherein the first surface layer has a first opening, The second surface layer has a second opening, the inner substrate layer has a substrate opening, and the inner substrate layer is located between the first surface layer and the second surface layer, and connects the first surface layer and the second surface layer . The first opening, the second opening and the substrate opening are arranged along the optical axis to form a polygonal opening. The inner substrate layer may be made of a plastic material, and the first surface layer and the second surface layer may both be black carbonaceous materials. The smallest central opening can be an aperture of the imaging lens. The smaller of the outer corners formed by the adjacent two inner edges is less than 90 degrees, which is θ, which satisfies the following condition: 9.0 degrees < θ < 33.0 degrees.

The imaging lens of the preceding paragraph, wherein at least two of the lenses each comprise an engaging structure for aligning the two lenses, wherein each of the engaging structures comprises a receiving surface and a conical surface. The receiving surfaces of the two lenses are connected to each other, and the conical surfaces of the two lenses are connected to each other, so that a receiving space is formed between the two lenses, and the vertical distance between the receiving space and the optical axis is shorter than the vertical distance between the conical surfaces and the optical axis. The light shielding sheet is received in the receiving space, and the outer diameter of the light shielding sheet is less than or equal to the minimum diameter of the conical surface of each lens. The angle between the conical surface of each lens and the optical axis is β, which satisfies the following conditions: 0 degree < β < 40 degrees. The inner diameter of the polygonal opening of the light shielding sheet is φi, and the outer diameter of the light shielding sheet is φ, which satisfies the following condition: 0.47 < φi / φ < 0.90. At least one of the lenses in the imaging lens is aligned with the mask by a conical surface thereon.

According to the present invention, there is provided an electronic device comprising the preceding paragraph The imaging lens and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on an imaging surface of the imaging lens.

1100, 1200, 2100, 2200, 2300, 2400, 2500, 2600‧ ‧ lenses

1110, 1210, 111, 121a, 121b, 131‧‧‧ joint structure

1111, 1211, 112, 122a, 122b, 132‧‧‧

1112, 1212, 113, 123a, 123b, 133‧‧ ‧ conical faces

1300, 2010, 2020, 2030, 140, 150, 240, 340, 440‧‧ ‧ shading film

1301, 2011‧‧‧ polygon opening

1311‧‧‧First surface layer

1311a‧‧‧First opening

1312‧‧‧Second surface layer

1312a‧‧‧Second opening

1313‧‧‧Internal substrate layer

1313a‧‧‧Substrate opening

1400, 2040, 141, 151‧‧‧ undertake space

1401, 1402, 114, 124a, 124b, 134‧‧ ‧ flat faces

2000‧‧‧ imaging lens

2001‧‧‧Mirror tube

2002‧‧‧Minimum center opening

3000‧‧‧Electronic device

3100, 13‧‧‧Electronic photosensitive elements

110‧‧‧ first lens

120‧‧‧second lens

130‧‧‧ third lens

10, 31, 41‧‧‧ image capture device

11‧‧‧ imaging lens

12‧‧‧Drive unit

14‧‧‧Image Stabilization Module

20, 30, 40‧‧‧ electronic devices

21‧‧‧Flash module

22‧‧‧Focus Auxiliary Module

23‧‧‧Image Signal Processor

24‧‧‧User interface

25‧‧‧Image Software Processor

26‧‧‧Respondents

D1, D2‧‧‧ outer diameter of the lens

D11‧‧‧ outer diameter of the first lens

D12‧‧‧ outer diameter of the second lens

D13‧‧‧ outer diameter of the third lens

Φ, φ1, φ2‧‧ ‧ outer diameter of the visor

C1, C2‧‧‧ the smallest diameter of the conical surface of the lens

C11‧‧‧Minimum diameter of the conical surface of the first lens

Minimum diameter of the conical surface of the C12a, C12b‧‧‧ second lens

C13‧‧‧Minimum diameter of the conical surface of the third lens

θ, θ1, θ2‧‧‧ are less than 90 degrees in the outer corner formed by the adjacent inner edges

The angle between the conical surface of the lens of the ‧‧‧ lens and the optical axis

11‧‧‧An angle between the conical surface of the first lens and the optical axis

22‧‧‧An angle between the conical surface of the second lens and the optical axis

Diameter of the inner diameter of the polygonal opening of φi, φi1, φi2‧‧ ‧

Length of s, s1, s2‧‧‧ inside

N‧‧‧Number of lenses

R, R1, R2‧‧‧ undertake space parallel to the width of the optical axis

1A is a schematic exploded view of an optical lens set according to an embodiment of the present invention; FIG. 1B is an exploded perspective view of the optical lens set according to the embodiment of FIG. 1A; FIG. 1C is a schematic view of the embodiment according to FIG. FIG. 1D is a plan view of the light shielding sheet according to the embodiment of FIG. 1C; FIG. 1E is an exploded view of the light shielding sheet according to the embodiment of the first embodiment; FIG. 1F is a view FIG. 1A is a schematic view showing a structure of a light shielding sheet according to an embodiment of the present invention; FIG. 2B is a schematic view showing a light shielding sheet according to an embodiment of the second embodiment; A schematic diagram of an electronic device according to another embodiment of the present invention; FIG. 4A is a schematic diagram showing the combination of the optical lens assembly according to the first embodiment of the present invention; and FIG. 4B is a view showing the decomposition of the optical lens assembly according to the first embodiment. schematic diagram; 4C is a schematic view showing a light shielding sheet according to the first embodiment; FIG. 4D is a schematic view showing another light shielding sheet according to the first embodiment; and FIG. 5 is a view showing an optical lens according to the second embodiment of the present invention. FIG. 6 is a schematic view showing a light shielding sheet of an optical lens group according to a third embodiment of the present invention; and FIG. 7 is a light blocking view of the optical lens group according to the fourth embodiment of the present invention; FIG. 8 is a schematic perspective view of a first embodiment of an electronic device according to a fifth embodiment of the present invention; FIG. 9B is a schematic view showing a side of an electronic device according to a sixth embodiment of the present invention; Figure 9 is a perspective view of the electronic device according to Figure 9A; Figure 9C is a schematic view of the other side of the electronic device according to Figure 9A; and Figure 9D is a schematic view of the system of the electronic device according to Figure 9A; FIG. 11 is a schematic diagram showing an electronic device according to a seventh embodiment of the present invention; and FIG. 11 is a schematic diagram showing an electronic device according to an eighth embodiment of the present invention.

Referring to FIG. 1A, FIG. 1B and FIG. 1C, FIG. 1A illustrates a combination of optical lens groups according to an embodiment of the present invention. 1B is a schematic exploded view of the optical lens assembly according to the embodiment of FIG. 1A, and FIG. 1C is a perspective view of the light shielding sheet 1300 of the optical lens assembly according to the embodiment of FIG. 1A. As shown in FIG. 1A and FIG. 1B , the optical lens group includes at least two lenses and at least one light shielding film 1300 . In the embodiment of FIG. 1A , the optical lens group includes two lenses 1100 and 1200 , and respectively includes a bonding structure 1110 . 1210 is used to align the two lenses 1100, 1200 to align the optical axes of the two lenses 1100, 1200. The joint structures 1110 and 1210 respectively include the receiving surfaces 1111 and 1211 and the conical surfaces 1112 and 1212, and the receiving surfaces 1111 and 1211 of the two lenses 1100 and 1200 are connected to each other, and the conical surfaces 1112 and 1212 are connected to each other, thereby being used for the two lenses. A receiving space 1400 is formed between 1100 and 1200, and the vertical distance between the receiving space 1400 and the optical axis is shorter than the vertical distance between each conical surface and the optical axis. The visor 1300 is received by the receiving space 1400, wherein the outer diameter φ of the visor 1300 is smaller than the outer diameters D1 and D2 of the two lenses 1100 and 1200, and the outer diameter φ of the visor 1300 is less than or equal to the cone of each of the two lenses 1100 and 1200. The minimum diameters C1, C2 of the faces 1112, 1212. Thereby, the light shielding sheet 1300 can be stably disposed between the two lenses 1100 and 1200. In addition, the width of the receiving space 1400 parallel to the optical axis is R, and R is approximately in the range of 0.01 mm to 0.05 mm.

Referring to FIG. 1D, a plan view of the light shielding sheet 1300 according to the embodiment of FIG. 1C is shown. As can be seen from FIG. 1D, the light shielding sheet 1300 has a polygonal opening 1301 having a plurality of inner sides, and the outer corners formed by the adjacent two inner edges are less than 90 degrees, which is θ, which satisfies the following condition: 9.0 degrees < θ <33.0 degrees. Thereby, the optical image with better quality can be obtained under the use state of the strong power of the knee-shooting light, and the specific light beam can be shielded more accurately, so that the light source is made The imaging effect is similar to that observed by the naked eye.

1E and FIG. 1F, FIG. 1E shows an exploded view of the light shielding sheet 1300 according to the embodiment of the first embodiment, and FIG. 1F shows a schematic structural view of the light shielding sheet 1300 according to the first embodiment. As shown in FIG. 1E, the light shielding sheet 1300 can be a composite light shielding sheet including a first surface layer 1311, a second surface layer 1312, and an inner substrate layer 1313. The first surface layer 1311 has a first opening 1311a, the second surface layer 1312 has a second opening 1312a, and the inner substrate layer 1313 has a substrate opening 1313a located on the first surface layer 1311 and the second surface layer 1312. Between the first surface layer 1311 and the second surface layer 1312. The first opening 1311a and the second opening 1312a and the substrate opening 1313a are disposed along the optical axis to form a polygonal opening 1301. Since the composite material can make the material strength easier to control, it is easy to process the high-quality polygonal opening, and the thickness of the light shielding sheet can be reduced, and it is easy to take in the receiving space without affecting the precision of the lens assembly. It should be noted that the first surface layer 1311 and the second surface layer 1312 shown in FIG. 1F are twisted and are non-uniformly stretched by the material pulled by the external force, and generally, when there is no external force, the first A surface layer 1311 and a second surface layer 1312 are in close contact with the inner substrate layer 1313.

In addition, the inner substrate layer 1313 of the light shielding sheet 1300 may be a plastic material; in detail, it may be black or transparent PC, black or transparent PET, black or transparent PMMA, but not limited thereto. The first surface layer 1311 and the second surface layer 1312 of the light shielding sheet 1300 may all be black carbonaceous materials. Thereby, the light shielding sheet 1300 can be made flat, and it is not easy to warp after press working.

As can be seen from Fig. 1B, the conical surface of each lens 1100, 1200 The angle with the optical axis is β, which satisfies the following conditions: 0 degrees < β < 40 degrees. Since the adjacent two lenses 1100 and 1200 are aligned with each other through the corresponding conical surfaces 1112 and 1212, the angles of the conical surfaces 1112 and 1212 corresponding to each other are the same, and if the above conditions are satisfied, the alignment optical axis can be maintained. Accuracy and reduce assembly failure.

As can be seen from FIG. 1B, each lens 1100, 1200 can further include a flat surface 1401, 1402 corresponding to the receiving space 1400 and perpendicular to the optical axis. Thereby, a space suitable for receiving the light shielding sheet 1300 can be provided, and the light shielding sheet 1300 can be prevented from being twisted and deformed by unnecessary external force inside the receiving space.

In addition, in the optical lens group, at least one of the lenses is aligned with the light shielding sheet through the conical surface thereon. In detail, in conjunction with FIG. 1A, the conical surfaces 1112, 1212 of the respective lenses 1100, 1200, in addition to being aligned with each other, contribute to the alignment of their respective optical axes with the central axis of the light shielding sheet 1300. Thereby, the fluency of lens assembly is increased, and the complexity of the mechanism is simplified.

It can be seen from FIG. 1D that the inner diameter of the polygonal opening 1301 of the light shielding sheet 1300 is φi (that is, the connection between any two inner sides of the polygonal opening 1301 of the light shielding sheet 1300 through the optical axis), and the outer diameter of the light shielding sheet 1300 It is φ, which satisfies the following condition: 0.47 < φi / φ < 0.90. Thereby, the optical lens group can ensure a large opening feature, and is suitable for an imaging lens with a large aperture. The large aperture means that the aperture value (f-number) is less than 2.4, but not limited thereto. Preferably, the following conditions are satisfied: 0.55 < φi / φ < 0.90. In this way, a light-shielding sheet that provides a precise light-shielding range can be placed in a small receiving space.

Refer to Figure 2A and Figure 2B, where Figure 2A shows A schematic view of an imaging lens 2000 according to an embodiment of the present invention, and FIG. 2B is a schematic view of a light shielding sheet 2010 according to the embodiment of FIG. 2A. As shown in FIG. 2A, the imaging lens 2000 includes a lens barrel 2001 and an optical lens group, wherein the optical lens group may be the optical lens group of the embodiment of FIG. 1A, but not limited thereto. In this embodiment, the optical lens group includes a plurality of lenses (2100, 2200, 2300, 2400, 2500, 2600) and at least one light shielding film (2010, 2020, 2030), wherein the light shielding film 2010 is received between the lens 2100 and the lens 2200. The receiving space 2040, the light shielding sheet 2020 receives the receiving space between the lens 2200 and the lens 2300 (not otherwise labeled), and the light shielding film 2030 receives the receiving space between the lens 2300 and the lens 2400 (not otherwise labeled).

2A and 2B, the inner diameter of the polygonal opening 2011 of the light shielding sheet 2010 is φi, the length of each inner side is s, and the number of lenses is N, which satisfies the following condition: 7.1 < φi / (s /2)<30; and 5 N 9. Therefore, with the light shielding sheet satisfying the above characteristics, an optical image of better quality can be obtained when the environment of the strong-powered light source is used, and the specific light beam can be shielded more accurately, so that the imaging effect of the light source is closer to the image observed by the naked eye. .

As can be seen from FIG. 2A, a minimum central opening 2002 of the lens barrel 2001 can be an aperture of the imaging lens, and the polygonal opening 2011 of the optical lens group of the optical lens group corresponds to the minimum central opening 2002 of the lens barrel 2001, that is, The two are arranged coaxially. With the technical features mentioned above, the complexity of the optical mechanism can be reduced, which contributes to the need for the imaging lens to achieve a small volume.

In the present embodiment, the arrangement of the lens and the light shielding sheet and the corresponding relationship between them can conform to the conditions in the embodiments of FIGS. 1A to 1F, and no further description is provided herein. In addition, the space between the lenses is in addition to the above The method can be used to receive the light shielding sheets or to face each other, and can also be used for receiving other optical components, such as lenses, mirror rings, etc., without limitation.

Referring to FIG. 3, a schematic diagram of an electronic device 3000 in accordance with still another embodiment of the present invention is shown. As shown in FIG. 3, the electronic device 3000 includes an imaging lens 2000 and an electronic photosensitive element 3100. The imaging lens 2000 of the present embodiment is the imaging lens 2000 of the second embodiment, but is not limited thereto. Thereby, the optical image with better quality can be obtained under the use state of the strong-shooting strong light source, and the specific light beam can be shielded more accurately, so that the imaging effect of the light source is closer to the image observed by the naked eye. The electronic device 3000 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. In addition, the electronic device 3000 can be, but is not limited to, a three-dimensional (3D) image capturing device, a digital camera, a mobile product, a digital tablet, a smart television, a network monitoring device, a somatosensory game machine, a vehicle lens such as a driving recorder, and Reversing and developing devices, aerial cameras, sports photographic equipment, various smart electronic products and wearable products.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the light of the above-described embodiments, the specific embodiments are described below in detail with reference to the drawings.

<First Embodiment>

Please refer to FIG. 4A, FIG. 4B, FIG. 4C and FIG. 4D, wherein FIG. 4A is a schematic diagram showing the combination of the optical lens group according to the first embodiment of the present invention, and FIG. 4B is a view showing the assembly according to the first embodiment. FIG. 4C is a schematic view showing a light shielding sheet 140 according to the first embodiment, and FIG. 4D is a view showing another light shielding sheet 150 according to the first embodiment. Schematic diagram. As shown in FIG. 4A, the optical lens assembly of the first embodiment of the present invention includes three lenses and two light shielding sheets, which are a first lens 110, a light shielding film 140, a second lens 120, a light shielding film 150, and a third lens 130, respectively. The opaque sheet 140 is received by the receiving space 141 between the first lens 110 and the second lens 120. The receiving space 141 has a width R1 parallel to the optical axis of 0.038 mm, and the visor 150 is received between the second lens 120 and the third lens 130. The receiving space 151 has a width R2 of the receiving space 151 parallel to the optical axis of 0.038 mm.

As can be seen from FIGS. 4A and 4B, the first lens 110 includes the joint structure 111, and the second lens 120 includes the joint structure 121a, thereby aligning each other. The joint structure 111 of the first lens 110 includes a receiving surface 112 and a conical surface 113. The joint structure 121a of the second lens 120 includes a receiving surface 122a and a conical surface 123a. The two receiving surfaces 112, 122a are connected to each other, and the two conical surfaces 113, 123a Correspondingly connected to each other, thereby forming a receiving space 141, wherein the vertical distance between the receiving space 141 and the optical axis is shorter than the vertical distance between the conical surfaces 113, 123a and the optical axis; that is, the receiving space 141 is closer to the conical surfaces 113, 123a. Optical axis. The receiving space 141 is configured to receive the light shielding sheet 140, wherein the outer diameter φ1 of the light shielding sheet 140 is smaller than the outer diameter D11 of the first lens 110 (D11=4.4 mm) and the outer diameter D12 of the second lens 120 (D12=4.3 mm), and The outer diameter φ1 of the light shielding sheet 140 is less than or equal to the minimum diameter C11 of the conical surface 113 of the first lens 110 (C11=3.55 mm in the first embodiment) and the minimum diameter C12a of the conical surface 123 of the second lens 120 (first In the examples, C12a = 3.59 mm).

4C, in the first embodiment, the angle between the conical surface 113 of the first lens 110 and the optical axis (equal to the second lens 120 connected thereto) The angle between the conical surface 123a and the optical axis is β1, and the light shielding sheet 140 has a polygonal opening (not otherwise labeled) having 20 inner sides, the inner lengths being s1 and s2, respectively, and adjacent two The outer corners formed by the inner side are less than 90 degrees, respectively, θ1 and θ2, the inner diameters of the polygonal openings of the light shielding sheet 140 are φi1 and φi2, respectively, and the outer diameter of the light shielding sheet 140 is φ1, and the relevant numerical values are described below.

Furthermore, the second lens 120 further includes a joint structure 121b, and the third lens 130 includes the joint structure 131, thereby aligning each other. The joint structure 121b of the second lens 120 includes a receiving surface 122b and a conical surface 123b. The joint structure 131 of the third lens 130 includes a receiving surface 132 and a conical surface 133. The two receiving surfaces 122b and 132 are connected to each other, and the two conical surfaces 123b and 133 are connected. Correspondingly connected to each other, thereby forming a receiving space 151, wherein the vertical distance between the receiving space 151 and the optical axis is shorter than the vertical distance between the conical surfaces 123b, 133 and the optical axis; that is, the receiving space 151 is closer to the conical surfaces 123b, 133. Optical axis. The receiving space 151 is configured to receive the light shielding sheet 150, wherein the outer diameter φ2 of the light shielding sheet 150 is smaller than the outer diameter D12 of the second lens 120 (D12=4.3 mm) and the outer diameter D13 of the third lens 130 (D13=4.9 mm), and The outer diameter φ2 of the light shielding sheet 150 is smaller than or equal to the minimum diameter C12b of the conical surface 123b of the second lens 120 (C12b=3.65 mm in the first embodiment) and the minimum diameter C13 of the conical surface 133 of the third lens 130 (first In the examples, C13 = 3.71 mm).

As can be seen from FIG. 4D, in the first embodiment, the second lens 120 The angle between the conical surface 123b and the optical axis (equal to the angle between the conical surface 133 of the third lens 130 connected thereto and the optical axis) is β2, and the light shielding sheet 150 has a polygonal opening (not otherwise labeled) having 16 inner portions. The length of the inner side is s, and the outer corner formed by the adjacent two inner edges is less than 90 degrees, and the inner diameter of the polygonal opening of the light shielding sheet 150 is φi, and the outer diameter of the light shielding sheet 150 is Φ2, and the relevant values are described below.

In the first embodiment, the light shielding sheets 140 and 150 are all the composite light shielding sheets according to the embodiment of the first aspect, and the inner substrate layers are all made of plastic material, and the first surface layer and the second surface layer are all black. Carbon material.

In addition, the first lens 110 further includes a flat surface 114, the second lens 120 further includes flat surfaces 124a and 124b, and the third lens 130 further includes a flat surface 134, wherein the flat surfaces 114, 124a correspond to the receiving space 141, and the optical axis The vertical, flat faces 124b, 134 correspond to the receiving space 151 and are perpendicular to the optical axis.

<Second embodiment>

Please refer to FIG. 5, which is a schematic diagram of a light shielding sheet 240 of an optical lens assembly according to a second embodiment of the present invention. In the optical lens assembly of the second embodiment, the arrangement relationship between the lens and the light shielding sheet 240 is the same as that of the first lens 110, the second lens 120, and the light shielding sheet 140 in the first embodiment, and is not illustrated or described herein. .

As can be seen from Fig. 5, in the second embodiment, the light shielding sheet 240 has a polygonal opening having 12 inner sides, the inner side has a length s, and the phase The outer corner formed by each of the two inner sides is less than 90 degrees, and the inner diameter of the polygonal opening of the light shielding sheet 240 is φi, and the outer diameter of the light shielding sheet 240 is φ, and the relevant values are as follows.

In the second embodiment, the light shielding sheet 240 is the composite light shielding sheet according to the embodiment of the first aspect, and the inner substrate layer is made of a plastic material, and the first surface layer and the second surface layer are both black carbonaceous materials.

<Third embodiment>

Please refer to FIG. 6 , which is a schematic diagram of a light shielding sheet 340 of the optical lens assembly according to the third embodiment. In the optical lens assembly of the third embodiment, the arrangement relationship between the lens and the light shielding sheet 340 is the same as that of the first lens 110, the second lens 120, and the light shielding sheet 140 in the first embodiment, and is not illustrated or described herein. .

As can be seen from Fig. 6, in the third embodiment, the light shielding sheet 340 has a polygonal opening having 24 inner sides, the length of the inner side is s, and the outer corners formed by the adjacent inner sides are less than 90 degrees. The value is θ, the inner diameter of the polygonal opening of the light shielding sheet 340 is φi, and the outer diameter of the light shielding sheet 340 is φ, and the relevant numerical values are described below.

In the third embodiment, the light shielding sheet 340 is the composite light shielding sheet according to the embodiment of the first aspect, and the inner substrate layer is made of a plastic material, and the first surface layer and the second surface layer are both black carbonaceous materials.

<Fourth embodiment>

Figure 7 is a schematic view showing a light shielding sheet 440 of an optical lens unit in accordance with a fourth embodiment of the present invention. In the optical lens assembly of the fourth embodiment, the arrangement relationship between the lens and the light shielding sheet 440 is the same as that of the first lens 110, the second lens 120, and the light shielding sheet 140 in the first embodiment, and is not illustrated or described herein. .

As can be seen from Fig. 7, in the fourth embodiment, the light shielding sheet 440 has a polygonal opening having 18 inner sides, the inner lengths are s1 and s2, respectively, and the outer corners formed by the adjacent inner edges are small and medium. At 90 degrees, 01 and 02, respectively, the inner diameters of the polygonal openings of the light shielding sheet 440 are φi1 and φi2, and the outer diameter of the light shielding sheet 440 is φ, and the relevant values are described below.

In the fourth embodiment, the light shielding sheet 440 is the composite light shielding sheet according to the embodiment of the first aspect, and the inner substrate layer is made of a plastic material, and the first surface layer and the second surface layer are both black carbonaceous materials.

<Fifth Embodiment>

Please refer to FIG. 8 , which is a perspective view of an image capturing apparatus 10 according to a fifth embodiment of the present invention. As shown in FIG. 8, the image capturing device 10 of the fifth embodiment is a camera module. The image capturing device 10 includes an imaging lens 11, a driving device group 12, and an electronic photosensitive element 13, wherein the imaging lens 11 includes the first aspect of the present invention. The optical lens set of the embodiment and a lens barrel carrying the optical lens set (not shown). The image capturing device 10 collects light by using the imaging lens 11 and images the object and performs image pairing with the driving device group 12. The focus is finally imaged on the electronic photosensitive element 13 and the image data is output.

The driving device group 12 can be an auto-focus module, which can be driven by, for example, a voice coil motor (VCM), a micro electro-mechanical system (MEMS), a piezoelectric system ( Piezoelectric), and drive systems such as Shape Memory Alloy. The driving device group 12 allows the image capturing system group to obtain a better imaging position, and can provide a clear image when the object is in different object distances.

The image capturing device 10 can be mounted on an imaging surface of the image capturing system group, and can provide a good image quality of the image capturing system group.

In addition, the image capturing device 10 may further include an image stabilization module 14, which may be a kinetic energy sensing component such as an accelerometer, a gyroscope or a Hall Effect Sensor, and in the fifth embodiment, the image stabilization module 14 It is a gyroscope, but not limited to it. By adjusting the image to capture different axial changes of the system group to compensate for blurred images caused by shaking at the moment of shooting, the image quality of dynamic and low-light scene shooting is further improved, and optical image stabilization (OIS) is provided, for example, (Optical Image Stabilization; OIS) ), advanced image compensation functions such as Electronic Image Stabilization (EIS).

<Sixth embodiment>

Referring to FIG. 9A, FIG. 9B, FIG. 9C, and FIG. 9D, FIG. 9A is a schematic diagram showing one side of an electronic device 20 according to a sixth embodiment of the present invention, and FIG. 9B is a view according to FIG. 9A. Electronic device 20 is a perspective view, FIG. 9C is a schematic view showing the other side of the electronic device 20 according to FIG. 9A, and FIG. 9D is a schematic view showing the system of the electronic device 20 according to FIG. 9A. 9A, 9B, 9C, and 9D, the electronic device 20 of the sixth embodiment is a smart phone, and the electronic device 20 includes the image capturing device 10, the flash module 21, and the focus assisting module. 22. Image signal processor 23, user interface 24, and image software processor 25. When the user photographs the subject 26 through the user interface 24, the electronic device 20 collects the image by the image capturing device 10, activates the flash module 21 to fill the light, and uses the object provided by the focus assisting module 22. The object distance information is quickly focused, and the image signal processor 23 (Image Signal Processor; ISP) and the image software processor 25 are used for image optimization to further improve the image quality generated by the image capturing system group. The focus assist module 22 can adopt infrared or laser focus assist system to achieve fast focus, and the user interface 24 can adopt a touch screen or a physical shooting button to perform image capturing and image processing with various functions of the image processing software.

The image capturing device 10 in the sixth embodiment is the same as the image capturing device 10 in the fifth embodiment, and will not be further described herein.

<Seventh embodiment>

Referring to FIG. 10, a schematic diagram of an electronic device 30 in accordance with a seventh embodiment of the present invention is shown. The electronic device 30 of the seventh embodiment is a tablet computer, and the electronic device 30 includes the image capturing device 31. The image capturing device 31 can be the same as the foregoing fifth embodiment, and will not be further described herein.

<Eighth Embodiment>

Please refer to FIG. 11 , which illustrates an eighth embodiment according to the present invention. A schematic diagram of an electronic device 40. The electronic device 40 of the eighth embodiment is a wearable device, and the electronic device 40 includes the image capturing device 41. The image capturing device 41 can be the same as the foregoing fifth embodiment, and will not be further described herein.

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.

Claims (19)

An optical lens set comprising: at least two lenses each comprising an engaging structure for aligning the two lenses, wherein each of the engaging structures comprises: a receiving surface; and a conical surface; wherein the receiving surfaces of the two lenses Correspondingly connected to each other, and the conical surfaces of the two lenses are connected to each other, thereby forming a receiving space between the two lenses, and a vertical distance between the receiving space and the optical axis is shorter than a vertical distance between the conical surface and the optical axis; At least one light shielding sheet is received in the receiving space and has a polygonal opening, wherein the outer diameter of the light shielding sheet is smaller than the outer diameter of each of the lenses, and the outer diameter of the light shielding sheet is less than or equal to the conical surface of each of the lenses The minimum diameter, the light shielding sheet comprises: a first surface layer having a first opening; a second surface layer having a second opening; and an inner substrate layer having a substrate opening, The inner substrate layer is located between the first surface layer and the second surface layer, and connects the first surface layer and the second surface layer, the first opening, the second opening and the substrate opening Corresponding along the optical axis The polygonal opening is formed; wherein the inner polygonal opening having a plurality of sides, and the outer corner of each of the two adjacent sides formed in the [theta] is less than 90 degrees or more, which satisfies the following conditions: 9.0 ° <θ <33.0 degrees. The optical lens set according to claim 1, wherein the inner substrate layer is made of a plastic material, the first surface layer and the first surface layer Both surface layers are made of black carbon. The optical lens set according to claim 1, wherein an angle between a conical surface of each of the lenses and an optical axis is β, which satisfies the following condition: 0 degree < β < 40 degrees. The optical lens set according to claim 1, wherein each of the lenses further comprises: a flat surface corresponding to the receiving space and perpendicular to the optical axis. The optical lens set of claim 1, wherein at least one of the conical surfaces through which the lens passes is aligned with the visor. The optical lens set according to claim 1, wherein the inner diameter of the polygonal opening of the light shielding sheet is φi, and the outer diameter of the light shielding sheet is φ, which satisfies the following condition: 0.47<φi/φ<0.90 . The optical lens set according to claim 6, wherein the inner diameter of the polygonal opening of the light shielding sheet is φi, and the outer diameter of the light shielding sheet is φ, which satisfies the following condition: 0.55<φi/φ<0.90 . An imaging lens comprising: a lens barrel; and the optical lens set according to claim 1 , which is disposed in the lens barrel; wherein the polygonal opening of the light shielding sheet of the optical lens group and the lens barrel a minimum central opening corresponding to the imaging lens An aperture. An electronic device comprising: the imaging lens of claim 8; and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on an imaging surface of the imaging lens. An imaging lens comprising: a lens barrel; and an optical lens set disposed in the lens barrel and comprising: a plurality of lenses; and at least one light shielding film having a polygonal opening, and the polygonal opening and the lens barrel Corresponding to a minimum central opening; wherein the polygonal opening has a plurality of inner edges, the inner diameter of the polygonal opening of the light shielding sheet is φi, the length of each inner side is s, and the number of the lenses is N, It satisfies the following conditions: 7.1 < φi / (s / 2) <30; and 5 N 9. The imaging lens of claim 10, wherein the light shielding sheet is a composite light shielding sheet, comprising: a first surface layer having a first opening; and a second surface layer having a second opening a hole; and an inner substrate layer having a substrate opening, the inner substrate layer being between the first surface layer and the second surface layer, and connecting the first surface layer and the second surface layer; The first opening, the second opening and the substrate opening are disposed along the optical axis to form the polygonal opening. The imaging lens of claim 11, wherein the inner substrate layer is made of a plastic material, and the first surface layer and the second surface layer are both black carbonaceous materials. The imaging lens of claim 11, wherein the minimum central opening is an aperture of the imaging lens. The imaging lens of claim 10, wherein less than 90 degrees of the outer corners formed by the adjacent two inner sides are θ, which satisfies the following condition: 9.0 degrees < θ < 33.0 degrees. The imaging lens of claim 10, wherein at least two of the lenses comprise a joint structure for aligning the two lenses, wherein each of the joint structures comprises: a receiving surface; and a conical surface The receiving surfaces of the two lenses are connected to each other, and the conical surfaces of the two lenses are connected to each other, so that a receiving space is formed between the two lenses, and the vertical distance between the receiving space and the optical axis is smaller than the conical surface. The vertical distance from the optical axis is short; wherein the light shielding sheet is received in the receiving space, and the outer diameter of the light shielding sheet is less than or equal to the minimum diameter of the conical surface of each of the lenses. The imaging lens according to claim 15, wherein an angle between a conical surface of each of the lenses and an optical axis is β, which satisfies the following condition: 0 degrees < β < 40 degrees. The imaging mirror described in claim 11 The head, wherein the inner diameter of the polygonal opening of the light shielding sheet is φi, and the outer diameter of the light shielding sheet is φ, which satisfies the following condition: 0.47 < φi / φ < 0.90. The imaging lens of claim 15, wherein at least one of the conical surfaces through which the lens passes is aligned with the visor. An electronic device comprising: the imaging lens of claim 10; and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on an imaging surface of the imaging lens.