Pixel projection lens and automobile

Abstract

The invention discloses a pixel projection lens and an automobile, and relates to the technical field of automobile illumination, the pixel projection lens is provided with an object side and an image side which are correspondingly arranged along the optical axis direction, the pixel projection lens comprises a first lens, a second lens, a third lens, a fourth lens and an image surface from the object side to the image side in sequence, the focal length of the first lens is f1, the focal length of the second lens is f2, the focal length of the third lens is f3, the focal length of the fourth lens is f4, and the pixel projection lens meets the following conditions: 10lt; f1lt; 20; -6 lt; f2lt; f2lt; -14.5,-14.5,-14.5; 30 lt; f3lt; f3t; 40); 35 lt; f4lt; f4t; 50; the first lens and the second lens are aspheric lenses, and the third lens and the fourth lens are glass spherical lenses. By means of the arrangement, the pixel projection lens is good in imaging quality and good in stability and can not defocus under the environment condition of-40 DEG C to 105 DEG C, and therefore it is fully guaranteed that the pixel projection lens works stably in the environment with the large temperature difference.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile lighting, and in particular to a pixel projection lens and an automobile. Background Art

[0002] With the rapid development of automotive lighting technology, consumers have higher and higher requirements for car headlights. In particular, the integration of lighting technology and projection technology has made automotive headlights more intelligent and technological, and pixel headlights have become one of the trends in the development of car lights. It is mainly based on MicroLED as the light source, and is equipped with an optical lens group to efficiently collect and image the light beams it emits. Through the lens module for projection lighting, it can achieve high brightness and high definition lighting effects for specific areas, and have low color difference and low distortion imaging effects. Combined with the development of MicroLED, improving light collection efficiency, small size, and reducing costs have become the main points to be overcome in the design of this lens.

[0003] Traditional solutions mainly adopt multi-piece glass structures, most of which have small apertures. In order to meet the projection lighting effect, a large number of glass lenses are used, resulting in large lens size and high cost. Summary of the invention

[0004] The main purpose of the present invention is to provide a pixel projection lens and a car, aiming to improve the problem that the existing vehicle headlights have a large number of lens lenses, resulting in large lens size and high cost.

[0005] To achieve the above object, the present invention provides a pixel projection lens, which has an object side and an image side correspondingly arranged along the optical axis direction, and includes a first lens, a second lens, a third lens, a fourth lens and an image plane from the object side to the image side, the focal length of the first lens is f1, the focal length of the second lens is f2, the focal length of the third lens is f3, and the focal length of the fourth lens is f4, and the pixel projection lens meets the following conditions:

[0006] 10 <f1<20;-6<f2<-14.5;30<f3<40;35<f4<50;

[0007] Wherein, the first lens and the second lens are aspherical lenses, and the third lens and the fourth lens are glass spherical lenses.

[0008] In one embodiment, the first lens is a positive lens, the object side surface of the first lens is a convex surface, and the image side surface is a convex surface;

[0009] The second lens is a negative lens, the object side surface of the second lens is a concave surface, and the image side surface of the second lens is a concave surface;

[0010] The third lens is a positive lens, the object side surface of the third lens is a convex surface, and the image side surface is a convex surface;

[0011] The fourth lens is a positive lens, the object side surface of the fourth lens is a convex surface, and the image side surface is a concave surface.

[0012] In one embodiment, the refractive index of the first lens is n1, 1.4≤n1≤1.6;

[0013] The refractive index of the second lens is n2, 1.5≤n2≤1.7;

[0014] The refractive index of the third lens is n3, 1.6≤n3≤1.9;

[0015] The refractive index of the fourth lens is n4, 1.55≤n4≤1.8.

[0016] In one embodiment, the dispersion coefficient of the first lens is v1, 50≤v1≤68;

[0017] The dispersion coefficient of the second lens is v2, 20≤v2≤40;

[0018] The dispersion coefficient of the third lens is v3, 50≤v3≤68;

[0019] The dispersion coefficient of the fourth lens is v4, 50≤v4≤68.

[0020] In one embodiment, the distance between the end of the first lens facing the object side and the image plane is set to TTL, and the effective focal length of the pixel projection lens is EFL, wherein TTL / EFL≤2.5.

[0021] In one embodiment, the aperture value of the pixel projection lens is F, 0.5≤F≤1.0.

[0022] In one embodiment, the pixel projection lens further includes an aperture stop, and the aperture stop is disposed between the first lens and the second lens.

[0023] In one embodiment, the pixel projection lens further includes a light emitting body, wherein the light emitting body is disposed at an interval on the image side of the fourth lens, and an end surface of the light emitting body facing the object side is the image plane.

[0024] In one embodiment, the diameter of the image plane of the light emitting body is IC, and IC≤13.2 mm.

[0025] The present invention also provides a car, comprising the above-mentioned pixel projection lens.

[0026] In the technical solution of the present invention, the first lens and the second lens are aspherical lenses. Aspherical lenses have better curvature radius characteristics and have the advantages of improving distortion aberration and improving astigmatism aberration. After using aspherical lenses, the aberrations occurring during imaging can be eliminated as much as possible, thereby improving the imaging quality of the lens. At the same time, the use of plastic aspherical lenses can also reduce the manufacturing cost of the pixel projection lens. The third lens and the fourth lens are glass spherical lenses. Glass lenses can well resist the problem of lens deformation due to heat, reduce the influence of temperature on the optical performance of the lens, and maintain the high precision of the lens for a long time. By combining the materials and distributing the surface shapes of the multiple lenses of the pixel projection lens, and reasonably controlling the focal lengths of the first lens, the second lens, the third lens, and the fourth lens, while reducing the manufacturing cost of the pixel projection lens, the imaging quality and stability of the pixel projection lens are improved, and the pixel projection lens can remain unfocused under environmental conditions of -40°C-105°C, thereby fully ensuring the stable operation of the pixel projection lens in an environment with a large temperature difference. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0028] Figure 1 A schematic structural diagram of an embodiment of a pixel projection lens provided by the present invention;

[0029] Figure 2 for Figure 1 A schematic diagram of MTF of an embodiment of a pixel projection lens in FIG.

[0030] Figure 3 for Figure 1 Schematic diagram of MTF of another embodiment of a pixel projection lens in FIG.

[0031] Description of Figure Numbers:

[0032] 100. Pixel projection lens; 1. First lens; 2. Second lens; 3. Third lens; 4. Fourth lens; 5. Aperture; 6. Light-emitting body.

[0033] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0035] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, then the directional indications are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0036] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present invention, then the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0037] The present invention provides a pixel projection lens, aiming to improve the problems of large lens size and high cost caused by the large number of lens lenses in existing vehicle headlights.

[0038] Please refer to Figure 1 , in an embodiment of the present invention, the pixel projection lens 100 has an object side and an image side arranged corresponding to each other along the optical axis direction. The pixel projection lens 100 includes a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, and an image plane in sequence from the object side to the image side. The focal length of the first lens 1 is f1, the focal length of the second lens 2 is f2, the focal length of the third lens 3 is f3, the focal length of the fourth lens 4 is f4. The pixel projection lens 100 satisfies the following conditions: 10 < f1 < 20; -6 < f2 < -14.5; 30 < f3 < 40; 35 < f4 < 50; the first lens 1 and the second lens 2 are aspherical lenses, and the third lens 3 and the fourth lens 4 are glass spherical lenses.

[0039] In the technical solution of the present invention, the first lens 1 and the second lens 2 are aspherical lenses. Aspherical lenses have better curvature radius characteristics and have the advantages of improving distortion aberration and astigmatism aberration. After using aspherical lenses, the aberration occurring during imaging can be eliminated as much as possible, thereby improving the imaging quality of the lens. At the same time, the use of plastic aspherical lenses can also reduce the manufacturing cost of the pixel projection lens 100. The third lens 3 and the fourth lens 4 are glass spherical lenses. Glass lenses can well resist the problem of lens deformation due to heat, reduce the influence of temperature on the optical performance of the lens, and maintain the high precision of the lens for a long time. By combining the materials and distributing the surface shapes of the multiple lenses of the pixel projection lens 100, and reasonably controlling the focal lengths of the first lens 1, the second lens 2, the third lens 3 and the fourth lens 4, while reducing the manufacturing cost of the pixel projection lens 100, the pixel projection lens 100 has good imaging quality and good stability, and can be kept from defocusing under environmental conditions of -40°C-105°C, thereby fully ensuring the stable operation of the pixel projection lens 100 in an environment with a large temperature difference.

[0040] It can be understood that, in the embodiment of the present invention, the first lens 1 and the second lens 2 are configured as aspherical lenses, and the third lens 3 and the fourth lens 4 are configured as glass spherical lenses, so that the influence of the high temperature on the image side of the pixel projection lens 100 on the imaging of the first lens 1 and the second lens 2 can be further reduced, so as to ensure clear imaging of the pixel projection lens 100.

[0041] It should be noted that the present invention does not limit the specific values ​​of the focal length f1 of the first lens 1, the focal length f2 of the second lens 2, the focal length f3 of the third lens 3, and the focal length f4 of the fourth lens 4. The focal length f1 of the first lens 1, the focal length f2 of the second lens 2, the focal length f3 of the third lens 3, and the focal length f4 of the fourth lens 4 can be set to any value within the corresponding range, and the present invention does not limit this. In actual setting, it can be selected according to needs.

[0042] In addition, in the embodiment of the present invention, the first lens 1 is a positive lens, the object side surface of the first lens 1 is a convex surface, and the image side surface is a convex surface; the second lens 2 is a negative lens, the object side surface of the second lens 2 is a concave surface, and the image side surface is a concave surface; the third lens 3 is a positive lens, the object side surface of the third lens 3 is a convex surface, and the image side surface is a convex surface; the fourth lens 4 is a positive lens, the object side surface of the fourth lens 4 is a convex surface, and the image side surface is a concave surface. In this way, the imaging quality of the pixel projection lens 100 is ensured through the reasonable matching of the four lens pairs.

[0043] Furthermore, in the present invention, the refractive index of the first lens 1 is n1, 1.4≤n1≤1.6, the refractive index of the second lens 2 is n2, 1.5≤n2≤1.7, the refractive index of the third lens 3 is n3, 1.6≤n3≤1.9, and the refractive index of the fourth lens 4 is n4, 1.55≤n4≤1.8.

[0044] Likewise, the present invention does not limit the refractive index of the first lens 1 , the refractive index of the second lens 2 , the refractive index of the third lens 3 , and the refractive index of the fourth lens 4 .

[0045] It should be noted that, in the embodiment of the present invention, the refractive index n1 of the first lens 1, the refractive index n2 of the second lens 2, the refractive index n3 of the third lens 3, and the refractive index n4 of the fourth lens 4 can be set to any value within the corresponding range. The present invention does not impose any limitation on this. In actual setting, it can be selected according to needs.

[0046] In addition, in another embodiment of the present invention, the dispersion coefficient of the first lens 1 is v1, 50≤v1≤68, the dispersion coefficient of the second lens 2 is v2, 20≤v2≤40, the dispersion coefficient of the third lens 3 is v3, 50≤v3≤68, and the dispersion coefficient of the fourth lens 4 is v4, 50≤v4≤68.

[0047] The present invention also does not limit the dispersion coefficient v1 of the first lens 1 , the dispersion coefficient v2 of the second lens 2 , the dispersion coefficient v3 of the third lens 3 , and the dispersion coefficient v4 of the fourth lens 4 .

[0048] Similarly, in an embodiment of the present invention, the dispersion coefficient v1 of the first lens 1, the dispersion coefficient v2 of the second lens 2, the dispersion coefficient v3 of the third lens 3, and the dispersion coefficient v4 of the fourth lens 4 can be set to any value within the corresponding range. The present invention does not impose any limitation on this. In actual setting, it can be selected according to needs.

[0049] In one embodiment of the present invention, the distance between the end of the first lens 1 facing the object side and the image plane is set to TTL, and the effective focal length of the pixel projection lens 100 is EFL, wherein TTL / EFL≤2.5.

[0050] In a further embodiment of the present invention, the aperture value of the pixel projection lens 100 is F, 0.5≤F≤1.0. Such a setting can make the pixel projection lens 100 have a large light flux, so that the pixel projection lens 100 has excellent picture brightness, so as to further improve the imaging quality of the pixel projection lens 100.

[0051] It can be understood that the present invention does not limit the specific value of the aperture value F of the pixel lens. In the embodiment of the present invention, the aperture value F of the pixel projection lens 100 can be set to any value within a range. The present invention does not limit this. In actual setting, it can be selected according to needs.

[0052] In addition, it should be noted that the pixel projection lens 100 further includes an aperture 5, which is disposed between the first lens 1 and the second lens 2. The aperture 5 limits the aperture of the light beam on the optical axis, blocks part of the light, thereby reducing the light spot and improving the image contrast, thereby improving the imaging quality of the pixel projection lens 100.

[0053] It is also necessary to further explain that the pixel projection lens 100 further includes a light emitter 6, which is arranged at intervals on the image side of the fourth lens 4, and one end surface of the light emitter 6 facing the object side is the image plane. In this way, the light emitter 6 can emit light along the optical axis.

[0054] Of course, the present invention does not limit the specific size of the light emitting body 6. In one embodiment of the present invention, the diameter of the image plane of the light emitting body 6 is IC, and IC≤13.2 mm.

[0055] In a specific embodiment of the present invention, the object-side surface of the first lens 11 is S1, and the image-side surface is S2; the object-side surface of the second lens 22 is S4, and the image-side surface is S5; the object-side surface of the third lens 33 is S6, and the image-side surface is S7; the object-side surface of the fourth lens 44 is S8, and the image-side surface is S9; and the image plane is S10.

[0056] In this embodiment, the focal length of the pixel projection lens 100 is f=27.8 mm, the aperture value is F=0.6, and the image plane diameter IC=13.2 mm.

[0057] It should be noted that, in this embodiment, the basic parameter table of each lens surface type, curvature radius, thickness, refractive index, dispersion coefficient and semi-diameter of the pixel projection lens 100 is shown in Table 1:

[0058] Table 1

[0059] Surface number Surface type (mm) Curvature radius (mm) Thickness(mm) Refractive Index Dispersion coefficient Semi-diameter(mm) OBJ Spherical Infinity 25000 1 Aspheric 33.806 22.461 1.49 57.4 24.5 2 Aspheric -9.822 0.330 23.1 STO Spherical Infinity 2.020 19.5 4 Aspheric 299.185 2.916 1.59 29.9 19.4 5 Aspheric 7.376 6.989 16.5 6 Spherical 55.492 9.931 1.73 54.7 16.6 7 Spherical -43.782 0.158 16.3 8 Spherical 17.927 15.733 1.62 63.4 12.9 9 Spherical 29.196 5.248 8.7 10 Spherical Infinity 0

[0060] It can be understood that, in the present embodiment, both the first lens 1 and the second lens 2 are aspherical lenses. The characteristics of aspherical lenses are: the curvature changes continuously from the center of the lens to the periphery of the lens. Unlike a spherical lens having a constant curvature from the center of the lens to the periphery of the lens, an aspherical lens has a better curvature radius characteristic, and has the advantages of improving distortion aberration and improving astigmatism aberration. After using an aspherical lens, the aberration occurring during imaging can be eliminated as much as possible, thereby improving the imaging quality of the lens.

[0061] Accordingly, in this embodiment, the third lens 3 and the fourth lens 4 are both glass spherical lenses. With such an arrangement, the use of spherical lenses reduces costs while ensuring image quality and reliability, has low assembly sensitivity, and improves the yield of finished products.

[0062] It should be noted that, in this embodiment, the object-side surface of the second lens 2 is a concave surface. However, since the second lens 2 is an aspheric lens, according to the definition of an aspheric lens, in this embodiment, the radius of curvature of the second lens 2 is a positive value.

[0063] Further, in this embodiment, the aspheric surface shape of the aspheric lens satisfies the following conditions:

[0064]

[0065] Among them, c is the curvature corresponding to the radius, y is the radial coordinate (its unit is the same as the lens length unit), k is the conic quadratic curve coefficient, (when the k coefficient is less than -1, the surface curve is a hyperbola, when the k coefficient is equal to -1, it is a parabola, when the k coefficient is between -1 and 0, it is an ellipse, when the k coefficient is equal to 0, it is a circle, and when the k coefficient is greater than 0, it is an oblate circle), a1, a2, a3, a4, a5, a6 are high-order aspheric coefficients, and the high-order coefficients of each aspheric mirror surface can be seen from the following Table 2:

[0066] Table 2

[0067]

[0068] With this setting, by reasonably allocating the lens power, adjusting the glass shape and material combination, effectively eliminating chromatic aberration and secondary spectrum, the spherical aberration, coma, astigmatism, etc. on each lens compensate and cancel each other out, so as to achieve a clear imaging effect and realize the optimal correction of high-order aberrations and chromatic aberrations.

[0069] Figure 2 FIG. 1 is a schematic diagram of an MTF curve of the pixel projection lens 100 in this embodiment.

[0070] It should be noted that Table 2 is a design value of the aspheric coefficient of the lens in the pixel projection lens 100 described in this embodiment. The specific numerical value of the aspheric coefficient design value can be adjusted according to product requirements, and the present invention does not limit this.

[0071] In another specific embodiment of the present invention, the object-side surface of the first lens 11 is S1, and the image-side surface is S2; the object-side surface of the second lens 22 is S4, and the image-side surface is S5; the object-side surface of the third lens 33 is S6, and the image-side surface is S7; the object-side surface of the fourth lens 44 is S8, and the image-side surface is S9; and the image plane is S10.

[0072] In this embodiment, the focal length of the pixel projection lens 100 is f=27.8 mm, the aperture value is F=0.67, and the image plane diameter IC=13.2 mm.

[0073] It should be noted that, in this embodiment, the basic parameter table of each lens surface type, curvature radius, thickness, refractive index, dispersion coefficient and semi-diameter of the pixel projection lens 100 is shown in Table 3:

[0074] Table 3

[0075]

[0076]

[0077] Likewise, in this embodiment, the first lens 1 and the second lens 2 are configured as aspherical lenses, and the third lens 3 and the fourth lens 4 are configured as glass spherical lenses.

[0078] It should be noted that, in this embodiment, the object-side surface of the second lens 2 is a concave surface. However, since the second lens 2 is an aspheric lens, according to the definition of an aspheric lens, in this embodiment, the radius of curvature of the second lens 2 is a positive value.

[0079] In this embodiment, the aspheric surface shape of the aspheric lens also satisfies the following conditions:

[0080]

[0081] Among them, c is the curvature corresponding to the radius, y is the radial coordinate (its unit is the same as the lens length unit), k is the coefficient of the conic quadratic curve, (when the k coefficient is less than -1, the surface curve is a hyperbola, when the k coefficient is equal to -1, it is a parabola, when the k coefficient is between -1 and 0, it is an ellipse, when the k coefficient is equal to 0, it is a circle, and when the k coefficient is greater than 0, it is an oblate circle), a1, a2, a3, a4, a5, a6 are high-order aspheric coefficients, and the high-order coefficients of each aspheric mirror surface can be seen from the following Table 4:

[0082] Table 4

[0083]

[0084] With this setting, by reasonably allocating the lens power, adjusting the glass shape and material combination, effectively eliminating chromatic aberration and secondary spectrum, the spherical aberration, coma, astigmatism, etc. on each lens compensate and cancel each other out, so as to achieve a clear imaging effect and realize the optimal correction of high-order aberrations and chromatic aberrations.

[0085] Figure 3 FIG. 1 is a schematic diagram of an MTF curve of the pixel projection lens 100 in this embodiment.

[0086] It should be noted that Table 4 is a design value of the aspheric coefficient of the lens in the pixel projection lens 100 described in this embodiment. The specific numerical value of the aspheric coefficient design value can be adjusted according to product requirements, and the present invention does not limit this.

[0087] The present invention further proposes a car, which includes a pixel projection lens 100. The specific structure of the pixel projection lens 100 refers to the above embodiment. Since the car adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0088] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A pixel projection lens, characterized in that: The pixel projection lens has an object side and an image side correspondingly arranged along the optical axis direction. The pixel projection lens includes a first lens, a second lens, a third lens, a fourth lens and an image plane in order from the object side to the image side. The focal length of the first lens is f1, the focal length of the second lens is f2, the focal length of the third lens is f3, and the focal length of the fourth lens is f4. The pixel projection lens satisfies the following conditions: 10 <f1<20;-6<f2<-14.5;30<f3<40;35<f4<50; Wherein, the first lens and the second lens are aspherical lenses, and the third lens and the fourth lens are glass spherical lenses.

2. The pixel projection lens according to claim 1, wherein: The first lens is a positive lens, the object side surface of the first lens is a convex surface, and the image side surface is a convex surface; The second lens is a negative lens, the object side surface of the second lens is a concave surface, and the image side surface is a concave surface; The third lens is a positive lens, the object side surface of the third lens is a convex surface, and the image side surface is a convex surface; The fourth lens is a positive lens, the object side surface of the fourth lens is a convex surface, and the image side surface is a concave surface.

3. The pixel projection lens according to claim 1, wherein: The refractive index of the first lens is n1, 1.4≤n1≤1.6; The refractive index of the second lens is n2, 1.5≤n2≤1.7; The refractive index of the third lens is n3, 1.6≤n3≤1.9; The refractive index of the fourth lens is n4, 1.55≤n4≤1.

8.

4. The pixel projection lens according to claim 1, wherein: The dispersion coefficient of the first lens is v1, 50≤v1≤68; The dispersion coefficient of the second lens is v2, 20≤v2≤40; The dispersion coefficient of the third lens is v3, 50≤v3≤68; The dispersion coefficient of the fourth lens is v4, 50≤v4≤68.

5. The pixel projection lens according to claim 1, wherein: The distance between the end of the first lens facing the object side and the image plane is set to TTL, and the effective focal length of the pixel projection lens is EFL, wherein TTL / EFL≤2.

5.

6. The pixel projection lens according to claim 1, wherein: The aperture value of the pixel projection lens is F, 0.5≤F≤1.

0.

7. The pixel projection lens according to claim 1, wherein: The pixel projection lens further includes an aperture, and the aperture is disposed between the first lens and the second lens.

8. The pixel projection lens according to claim 1, wherein: The pixel projection lens further includes a light emitting body, wherein the light emitting body is arranged at intervals on the image side of the fourth lens, and an end surface of the light emitting body facing the object side is the image plane.

9. The pixel projection lens according to claim 8, wherein: The diameter of the image plane of the luminous body is IC, IC≤13.2mm.

10. An automobile, characterized in that: Comprising a pixel projection lens as described in any one of claims 1 to 9.

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