Mobile phone zooming superimposed telescope lens

Abstract

The utility model discloses a kind of mobile phone zooming stacking telescopic lens in the field of optical lens, including lens G1, lens G2, lens G3, prism, lens G4, lens G5, lens G6, lens G7, lens G8, lens G9, lens G10, lens G11 and lens G12 arranged in sequence along optical axis;The air interval between lens G1 and lens G2 is 0mm;The air interval between lens G2 and lens G3 is 10-33mm;The air interval between lens G3 and prism is 6-25mm.The utility model is combined by 12 lenses and prism, effectively corrects spherical aberration, chromatic aberration and other aberrations, improves imaging quality, realizes 8-12 times optical zooming by accurate control lens interval, meets long-distance shooting demand, overall structure is compact, adapts mainstream mobile phone model, with good practicality and market prospect.

Description

Technical Field

[0001] This utility model relates to the field of optical lenses, specifically a telephoto lens for mobile phones. Background Technology

[0002] With the widespread adoption of mobile phone photography, users' demand for long-distance shooting is increasing. Existing native mobile phone lenses have short focal lengths, making it difficult to capture distant scenes clearly; many external telephoto lenses on the market suffer from significant aberrations, blurry images, and limited telephoto extension effects, and their unreasonable structural designs lead to poor compatibility. Therefore, there is an urgent need for a mobile phone telephoto lens with excellent image quality and significant telephoto extension effect.

[0003] Therefore, those skilled in the art have provided a mobile phone telephoto lens with telephoto extension to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a mobile phone telephoto lens with telephoto extension to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A mobile phone telephoto lens with telephoto extension includes a lens G1, a lens G2, a lens G3, a prism, a lens G4, a lens G5, a lens G6, a lens G7, a lens G8, a lens G9, a lens G10, a lens G11, and a lens G12 arranged sequentially along the optical axis.

[0007] The air gap between lens G1 and lens G2 is 0 mm; the air gap between lens G2 and lens G3 is 10-33 mm; the air gap between lens G3 and prism is 6-25 mm; the air gap between prism and lens G4 is 1-6 mm; the air gap between lens G4 and lens G5 is 2-3.5 mm; the air gap between lens G6 and lens G7 is 4.0-6.0 mm; the air gap between lens G8 and lens G9 is 5.5-8.0 mm; the air gap between lens G9 and G10, G10 and G11, and G11 and G12 is 0-1.0 mm; the air gap between lens G5 and G6 is 2-4.0 mm; and the air gap between lens G7 and G8 is 0-1.0 mm.

[0008] As a further embodiment of this utility model: the refractive index nd of lens G1 is 1.497000, the Abbe number Vd is 81.61, the radii of curvature R1 and R2 of the two surfaces are both R62-R64, the center thickness is 5.0-6.0mm, and the diameter is 28.0-35.0mm; the refractive index nd of lens G2 is 1.834810, the Abbe number Vd is 42.73, the surface radii of curvature R1 are R62-R64, R2 are R130-R135, the center thickness is 1.0-2.0mm, and the diameter is 28.0-35.0mm.

[0009] As a further embodiment of this utility model: the refractive index nd of lens G3 is 1.487490, the Abbe number Vd is 70.44, the surface curvature radius R1 is R162-R166, R2 is R103-R106, the center thickness is 1.0-2.0mm, and the diameter is 24.0-35.0mm; the refractive index nd of lens G4 is 1.772500, the Abbe number Vd is 49.60, the surface curvature radius R1 is R12-R14, R2 is R38-R40, the center thickness is 2.5-3.5mm, and the diameter is 10.0-18.0mm.

[0010] As a further embodiment of this utility model: the refractive index nd of lens G5 is 1.846660, the Abbe number Vd is 23.78, the surface curvature radius R1 is ∞, R2 is R26-R27, the center thickness is 2.5-3.5mm, and the diameter is 8.0-18.0mm; the refractive index nd of lens G6 is 1.487490, the Abbe number Vd is 70.44, the surface curvature radius R1 is R18-R20, R2 is R5-R7, the center thickness is 2.5-3.5mm, and the diameter is 5.0-15.0mm.

[0011] As a further embodiment of this utility model: the refractive index nd of lens G7 is 1.552480, the Abbe number Vd is 63.37, the surface curvature radius R1 is R8-R9, R2 is R6-R8, the center thickness is 2.5-3.5mm, and the diameter is 5.0-15.0mm; the refractive index nd of lens G8 is 1.903660, the Abbe number Vd is 31.32, the surface curvature radius R1 is R29-R32, R2 is R20-R22, the center thickness is 2.0-3.0mm, and the diameter is 8.0-16.0mm.

[0012] As a further embodiment of this utility model: the refractive index nd of lens G9 is 1.846660, the Abbe number Vd is 23.78, the surface curvature radius R1 is R16-R18, R2 is R20-R22, the center thickness is 0.6-1.5mm, and the diameter is 5.0-15.0mm; the refractive index nd of lens G10 is 1.846660, the Abbe number Vd is 23.78, the surface curvature radius R1 is R16-R18, R2 is R41-R44, the center thickness is 0.6-1.5mm, and the diameter is 5.0-15.0mm.

[0013] As a further embodiment of this utility model: the refractive index nd of lens G11 is 1.552480, the Abbe number Vd is 63.37, the surface curvature radius R1 is R14-R16, R2 is R8-R10, the center thickness is 1.5-3.0mm, and the diameter is 5.0-15.0mm; the refractive index nd of lens G12 is 1.772500, the Abbe number Vd is 49.60, the surface curvature radius R1 is R24-R26, R2 is R14-R16, the center thickness is 2.0-3.5mm, and the diameter is 8.0-15.0mm.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention effectively corrects aberrations such as spherical aberration and chromatic aberration by using a combination of 12 lenses and prisms, thereby improving image quality. By precisely controlling the lens spacing, it achieves 8-12 times optical teleconversion, meeting the needs of long-distance shooting. The overall structure is compact, compatible with mainstream mobile phone models, and has good practicality and market prospects. Attached Figure Description

[0016] Figure 1 This is a system structure diagram of the present invention;

[0017] Figure 2 This is the MTF curve of this utility model;

[0018] Figure 3 This is a dot diagram of the present invention;

[0019] Figure 4 The field curvature and distortion diagram of this utility model;

[0020] Figure 5 This is the optical path diagram of this utility model.

[0021] In the diagram: 1. Lens G1; 2. Lens G2; 3. Lens G3; 4. Prism; 5. Lens G4; 6. Lens G5; 7. Lens G6; 8. Lens G7; 9. Lens G8; 10. Lens G9; 11. Lens G10; 12. Lens G11; 13. Lens G12. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] Please see Figure 1-5 In this embodiment, a mobile phone telephoto lens includes a lens G1(1), a lens G2(2), a lens G3(3), a prism (4), a lens G4(5), a lens G5(6), a lens G6(7), a lens G7(8), a lens G8(9), a lens G9(10), a lens G10(11), a lens G11(12), and a lens G12(13) arranged sequentially along the optical axis.

[0025] 1. Lens parameters

[0026] Lens G1(1): Refractive index nd=1.497000, Abbe number Vd=81.61; Surface curvature radius R1=63mm, R2=63mm; Center thickness 5.5mm, diameter 32mm.

[0027] Lens G2(2): Refractive index nd=1.834810, Abbe number Vd=42.73; R1=63mm, R2=132mm; center thickness 1.5mm, diameter 32mm.

[0028] Lens G3(3): Refractive index nd=1.487490, Abbe number Vd=70.44; R1=164mm, R2=105mm; Center thickness 1.5mm, diameter 30mm.

[0029] Prism (4): Size-fitting lenses G3 (3)3 and G4.

[0030] Lens G4(5): Refractive index nd=1.772500, Abbe number Vd=49.60; R1=13mm, R2=39mm; Center thickness 3.0mm, Diameter 14mm.

[0031] Lens G5(6): Refractive index nd=1.846660, Abbe number Vd=23.78; R1=∞ plane, R2=26.5mm; center thickness 3.0mm, diameter 13mm.

[0032] Lens G6(7): R1 = 19mm, R2 = 6mm; center thickness 3.0mm, diameter 10mm.

[0033] Lens G7(8): R1 = 8.5 mm, R2 = 7 mm; center thickness 3.0 mm, diameter 10 mm.

[0034] Lens G8(9): Refractive index nd=1.903660, Abbe number Vd=31.32; R1=30mm, R2=21mm; Center thickness 2.5mm, Diameter 12mm.

[0035] Lens G9(10): R1=17mm, R2=21mm; center thickness 1.0mm, diameter 10mm.

[0036] Lens G10(11): R1=17mm, R2=42mm; center thickness 1.0mm, diameter 10mm.

[0037] Lens G11(12): R1=15mm, R2=9mm; center thickness 2.0mm, diameter 10mm.

[0038] Lens G12(13): R1 = 25mm, R2 = 15mm; center thickness 2.8mm, diameter 12mm.

[0039] 2. Air gap parameters

[0040] Lens G1(1) and lens G2(2): 0mm tightly fitted;

[0041] Lens G2(2) and lens G3(3): 22mm;

[0042] Lens G3(3) and prism(4): 15mm;

[0043] Prism (4) and lens G4 (5): 3mm;

[0044] Lens G4(5) and lens G5(6): 2.8mm;

[0045] Lens G5(6) and lens G6(7): 3.0mm;

[0046] Lens G6(7) and lens G7(8): 5.0mm;

[0047] Lens G7(8) and lens G8(9): 0.5mm;

[0048] Lens G8(9) and lens G9(10): 6.8mm;

[0049] Lens G9(10) and lens G10(11): 0.5mm;

[0050] Lens G10(11) and lens G11(12): 0.5mm;

[0051] Lens G11(12) and lens G12(13): 0.5mm.

[0052] 3 Optical performance data

[0053] MTF curve attached Figure 2 At a spatial frequency of 30 lp / mm, the MTF value of each field of view is ≥0.5, which is close to the diffraction limit, resulting in high imaging clarity.

[0054] Point-to-point diagram appendix Figure 3 The diameter of the diffusion spot in each field of view is ≤10μm, which is smaller than the Airy disk diameter of 13.6μm, and the energy concentration is excellent.

[0055] Field curvature and distortion Figure 4 Maximum field curvature ≤ 0.05 mm, distortion rate ≤ 1%, effective aberration correction.

[0056] In this embodiment, by using 12 lenses and prism (4) to effectively correct aberrations such as spherical aberration and chromatic aberration, the imaging quality is improved. By precisely controlling the lens spacing, 8-12 times optical telemetry can be achieved to meet the needs of long-distance shooting. The overall structure is compact and compatible with mainstream mobile phone models, and has good practicality and market prospects.

[0057] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mobile phone telephoto lens with telephoto extension, characterized in that: The lens consists of lens G1(1), lens G2(2), lens G3(3), prism (4), lens G4(5), lens G5(6), lens G6(7), lens G7(8), lens G8(9), lens G9(10), lens G10(11), lens G11(12) and lens G12(13) arranged sequentially along the optical axis. The air gap between lens G1(1) and lens G2(2) is 0 mm; the air gap between lens G2(2) and lens G3(3) is 10-33 mm; the air gap between lens G3(3) and prism (4) is 6-25 mm; the air gap between prism (4) and lens G4(5) is 1-6 mm; the air gap between lens G4(5) and lens G5(6) is 2-3.5 mm; and the air gap between lens G6(7) and lens G7(8) is 4.0-6 mm. 0mm; the air gap between lens G8(9) and lens G9(10) is 5.5-8.0mm; the air gap between lens G9(10) and lens G10(11), lens G10(11) and lens G11(12), and lens G11(12) and lens G12(13) is 0-1.0mm; the air gap between lens G5(6) and lens G6(7) is 2-4.0mm; the air gap between lens G7(8) and lens G8(9) is 0-1.0mm.

2. The mobile phone telephoto lens with telephoto extension according to claim 1, characterized in that: The refractive index nd of lens G1(1) is 1.497000, the Abbe number Vd is 81.61, the radii of curvature R1 and R2 of the two surfaces are both R62-R64, the center thickness is 5.0-6.0mm, and the diameter is 28.0-35.0mm; the refractive index nd of lens G2(2) is 1.834810, the Abbe number Vd is 42.73, the surface radii of curvature R1 are R62-R64, R2 are R130-R135, the center thickness is 1.0-2.0mm, and the diameter is 28.0-35.0mm.

3. The mobile phone telephoto lens with telephoto extension according to claim 1, characterized in that: The refractive index nd of lens G3(3) is 1.487490, the Abbe number Vd is 70.44, the surface curvature radius R1 is R162-R166, R2 is R103-R106, the center thickness is 1.0-2.0mm, and the diameter is 24.0-35.0mm; the refractive index nd of lens G4(5) is 1.772500, the Abbe number Vd is 49.60, the surface curvature radius R1 is R12-R14, R2 is R38-R40, the center thickness is 2.5-3.5mm, and the diameter is 10.0-18.0mm.

4. The mobile phone telephoto lens with telephoto extension according to claim 1, characterized in that, The refractive index nd of lens G5(6) is 1.846660, the Abbe number Vd is 23.78, the surface curvature radius R1 is ∞, R2 is R26-R27, the center thickness is 2.5-3.5mm, and the diameter is 8.0-18.0mm; the refractive index nd of lens G6(7) is 1.487490, the Abbe number Vd is 70.44, the surface curvature radius R1 is R18-R20, R2 is R5-R7, the center thickness is 2.5-3.5mm, and the diameter is 5.0-15.0mm.

5. A mobile phone telephoto lens with telephoto extension according to claim 1, characterized in that: The refractive index nd of lens G7(8) is 1.552480, the Abbe number Vd is 63.37, the surface curvature radius R1 is R8-R9, R2 is R6-R8, the center thickness is 2.5-3.5mm, and the diameter is 5.0-15.0mm; the refractive index nd of lens G8(9) is 1.903660, the Abbe number Vd is 31.32, the surface curvature radius R1 is R29-R32, R2 is R20-R22, the center thickness is 2.0-3.0mm, and the diameter is 8.0-16.0mm.

6. The mobile phone telephoto lens with telephoto extension according to claim 1, characterized in that: The refractive index nd of the lens G9(10) is 1.846660, the Abbe number Vd is 23.78, the surface curvature radius R1 is R16-R18, R2 is R20-R22, the center thickness is 0.6-1.5mm, and the diameter is 5.0-15.0mm; the refractive index nd of the lens G10(11) is 1.846660, the Abbe number Vd is 23.78, the surface curvature radius R1 is R16-R18, R2 is R41-R44, the center thickness is 0.6-1.5mm, and the diameter is 5.0-15.0mm.

7. A mobile phone telephoto lens with telephoto extension according to claim 1, characterized in that: The refractive index nd of lens G11(12) is 1.552480, the Abbe number Vd is 63.37, the surface curvature radius R1 is R14-R16, R2 is R8-R10, the center thickness is 1.5-3.0mm, and the diameter is 5.0-15.0mm; the refractive index nd of lens G12(13) is 1.772500, the Abbe number Vd is 49.60, the surface curvature radius R1 is R24-R26, R2 is R14-R16, the center thickness is 2.0-3.5mm, and the diameter is 8.0-15.0mm.

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