Lens for long-distance high-pixel intelligent projection vehicle lamp system
By designing lenses with multi-lens structure and BBAR film, the problems of insufficient lighting range and dazzling in traditional car light systems are solved, and high-pixel intelligent projection is achieved, which improves vehicle safety and technological sense.
Patent Information
- Application Number
- CN202323484433.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-20
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2033-12-20
AI Technical Summary
Traditional car light systems have safety hazards in the problems of insufficient lighting range and dazzling lights from far to near, affecting vehicle safety.
A lens for a long-distance high-pixel intelligent projection vehicle light system is designed, using a multi-lens structure and a BBAR film, combined with an aluminum lens barrel, optimizes the lens curvature and arrangement, reduces stray light, and improves imaging quality.
It achieves high imaging quality and low glare projection effect, improves vehicle safety and technology, is suitable for automotive headlights, with a field of view angle up to 42°, and a low distortion of the product.
Smart Images
Figure CN222278312U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a high-resolution lens, in particular to a lens for a long-distance high-pixel intelligent projection vehicle lamp system, which has a simple structure, high imaging quality and can effectively take the most realistic photos. Background Art
[0002] The car light projection system has broader prospects, rich technical reserves, and unlimited innovation space, and is the future direction of automotive lighting development.
[0003] With the continuous advancement of automotive lighting technology, especially the popularization of LED light sources, and a large number of technological innovations in the fields of sensors and algorithm processing, the most advanced headlight systems currently have the function of adjusting various light patterns according to various complex road environments, and perform intelligent lighting actions such as multi-road mode switching, intelligent follow-up steering, automatic recognition of oncoming vehicles' glare-free high beams, road sign recognition, pedestrian warnings, etc. Such functions are not only helpful for driving safety, but also can intuitively enhance the vehicle's sense of technology, and are more in line with the current trends in assisted driving and autonomous driving technologies.
[0004] At present, this system has been equipped in high-end car series of many brands, such as Mercedes-Benz S-Class, Audi A8, AITO M9, etc. With the development of the automobile industry, the gradual maturity of the car navigation market, consumers are increasingly pursuing safety, convenience and practicality. According to this trend, most domestic and foreign automobile manufacturers have plans and actions to make the head projection system a standard configuration on luxury cars, and it has been accepted by many consumers, so this configuration will definitely be a trend for many years to come.
[0005] Disadvantages of traditional technology: 1. Headlights made with traditional technology can only be used for lighting;
[0006] 2. Car lights manufactured with traditional technology seriously affect vehicle safety due to problems such as insufficient lighting range and dazzling high and low beams. Utility Model Content
[0007] In view of the above problems, the main purpose of the utility model is to provide a lens for a long-distance high-pixel intelligent projection car light system, which has a simple structure, high imaging quality and can effectively take the most realistic photos.
[0008] The utility model solves the above technical problems through the following technical solutions: a lens for a long-distance high-pixel intelligent projection lamp system, the lens for the long-distance high-pixel intelligent projection lamp system comprising: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a lens barrel, a lens cap, and an aperture surface, and from the object space to the image surface of the lens, they are: the first lens, the second lens, the third lens, the aperture surface, the fourth lens, the fifth lens, and the sixth lens.
[0009] A first clamping ring is arranged between the first lens and the second lens; a second clamping ring is arranged between the second lens and the third lens, a third clamping ring is arranged between the third lens and the fourth lens, and a third clamping ring first protrusion and a third clamping ring second protrusion are arranged on the third clamping ring.
[0010] A fourth clamping ring is arranged between the fifth lens and the sixth lens, and a fourth clamping ring protrusion for clamping the fifth lens and a fourth clamping ring inclined surface for clamping the sixth lens are arranged on the fourth clamping ring.
[0011] The lens cap is provided with a first hook for clamping the first lens, the lens barrel is provided with a second hook for clamping the sixth lens, and a sealing ring is provided between the lens barrel and the lens cap; the first lens, the second lens, the third lens, the fourth lens, the fifth lens, and the sixth lens are all installed in the lens barrel.
[0012] In a specific implementation example of the present invention, the object plane and the image plane of the first lens are both planes, the thickness of the first lens is 3 mm, and the distance between the image plane of the first lens and the central vertex of the object plane of the second lens is 25 mm.
[0013] In a specific implementation example of the present utility model, the object surface of the second lens is a spherical surface with a curvature radius of 41.598 mm, and the center thickness of the second lens is 3.325 mm; the image surface of the second lens is a spherical surface with a curvature radius of -738.616 mm, and the distance between the image surface of the second lens and the center vertex of the object surface of the third lens is 0.093 mm.
[0014] In a specific implementation example of the present utility model, the object surface of the third lens is a spherical surface with a curvature radius of 17.295 mm, and the center thickness of the third lens is 3.585 mm; the image surface of the third lens is a spherical surface with a curvature radius of 63.190 mm, and the distance between the image surface of the third lens and the aperture surface is 0.746 mm; the distance between the aperture surface and the center vertex of the object surface of the fourth lens is 2.709 mm.
[0015] In a specific implementation example of the present utility model, the object surface of the fourth lens is a spherical surface with a curvature radius of -23.485 mm, and the center thickness of the fourth lens is 6.22 mm; the image surface of the fourth lens is a spherical surface with a curvature radius of 19.678 mm, and the distance between the image surface of the fourth lens and the central vertex of the object surface of the fifth lens is 0.715 mm.
[0016] In a specific implementation example of the present utility model, the object surface of the fifth lens is a spherical surface with a curvature radius of 27.549 mm, and the center thickness of the fifth lens is 4.678 mm; the image surface of the fifth lens is a spherical surface with a curvature radius of -19.770 mm, and the distance between the image surface of the fifth lens and the central vertex of the object surface of the sixth lens is 0.1 mm.
[0017] In a specific implementation example of the present utility model, the object surface of the sixth lens is a spherical surface with a curvature radius of 15.154 mm, and the center thickness of the sixth lens is 4.675 mm; the image surface of the sixth lens is a spherical surface with a curvature radius of 48.339 mm, and the distance between the image surface of the sixth lens and the image plane is 4.490 mm.
[0018] In a specific implementation example of the present invention, the image plane and the object plane of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, and the sixth lens are lenses coated with a BBAR film.
[0019] The positive improvement effect of the utility model is that the lens for the long-distance high-pixel intelligent projection lamp system provided by the utility model has the following advantages:
[0020] The lens barrel of the utility model uses aluminum material AL6061, which not only reduces the weight but also improves the strength of the lens. Moreover, the surface is oxidized and blackened, which can effectively absorb the reflection of stray light.
[0021] The utility model partially coats the surface of the lens with a BBAR film to reduce reflected light, absorbs and disperses the stray light generated inside the lens to a great extent, and greatly reduces the stray light energy on the image plane.
[0022] The utility model can be used in automobile headlights, has compact size and structure, an overall size of φ61mm×57.7mm, and a field of view of up to 42°; adopts a 5G1P structure, has low distortion and low glare, and can be used for projection imaging.
[0023] During the optical design process, the utility model comprehensively considers increasing the number of lenses, adjusting the arrangement, and optimizing the shape and material. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0025] Figure 2 This is a schematic diagram of the imaging light path of the utility model.
[0026] The following are the names corresponding to the label numbers in this utility model:
[0027] The first lens 1, the second lens 2, the third lens 3, the fourth lens 4, the fifth lens 5, the sixth lens 6, the aperture surface 7, the lens barrel 8, the lens cap 9, the first barb 10, the first clamping ring 11, the second clamping ring 12, the third clamping ring 13, the fourth clamping ring 14, the second barb 15, the sealing ring 16, the third clamping ring first protrusion 131, the third clamping ring second protrusion 132, the fourth clamping ring protrusion 141, the fourth clamping ring inclined surface 142. DETAILED DESCRIPTION
[0028] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to illustrate the technical solution of the present invention in detail.
[0029] Figure 1 It is a schematic diagram of the overall structure of the utility model. Figure 2 Schematic diagram of the imaging optical path of the utility model, such as Figure 1-2 As shown, the lens for a long-distance high-pixel intelligent projection vehicle lamp system provided by the utility model comprises: a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, a fifth lens 5, a sixth lens 6, a lens barrel 8, a lens cap 9, and an aperture surface 7. From the object space of the lens to the image plane, they are: the first lens 1, the second lens 2, the third lens 3, the aperture surface 7, the fourth lens 4, the fifth lens 5, and the sixth lens 6. A first clamping ring 11 is arranged between the first lens 1 and the second lens 2; a second clamping ring 12 is arranged between the second lens 2 and the third lens 3, a third clamping ring 13 is arranged between the third lens 3 and the fourth lens 4, a third clamping ring first protrusion 131 and a third clamping ring second protrusion 132 are arranged on the third clamping ring 13, a fourth clamping ring 14 is arranged between the fifth lens 5 and the sixth lens 6, and a fourth clamping ring protrusion 141 for clamping the fifth lens 5 and a fourth clamping ring inclined surface 142 for clamping the sixth lens 6 are arranged on the fourth clamping ring 14. The lens cap 9 is provided with a first hook 10 for clamping the first lens 1, the lens barrel 8 is provided with a second hook 15 for clamping the sixth lens 6, and a sealing ring 16 is provided between the lens barrel 8 and the lens cap 9; the first lens 1, the second lens 2, the third lens 3, the fourth lens 4, the fifth lens 5, and the sixth lens 6 are all installed in the lens barrel 8.
[0030] In the specific implementation process of the present invention, the image surface and the object surface of the first lens 1, the second lens 2, the third lens 3, the fourth lens 4, the fifth lens 5, and the sixth lens 6 are lenses coated with BBAR film.
[0031] The following is a specific implementation example: in the following text description and table, lens 1 is the first lens, lens 2 is the second lens, lens 3 is the third lens, lens 4 is the fourth lens, lens 5 is the fifth lens, and lens 6 is the sixth lens 6.
[0032] Table 1 lists the detailed parameters of the design. The first row lists the main parameters of the lens: focal length f=14mm, aperture F / #=0.66, total optical track length: TTL=59.135mm.
[0033] The headings of Table 1 list: "Surface", "Type", "Radius of Curvature", "Thickness", "Refractive Index" and "Abbe Number". The lens element material is defined by the refractive index and the Abbe number. In Table 1, a blank cell in the "Refractive Index" column indicates that the value in the adjacent "Thickness" cell is the distance to the next lens surface vertex. The "Refractive Index" column provides the refractive index of the lens material at a wavelength of 632.8nm.
[0034] In Table 1, the radius of curvature of the object surface is infinite, that is, a plane, and is infinitely far from the center vertex of the next surface (object surface of lens 1).
[0035] Surface 1 is the object surface of lens 1, which is a plane with an infinite radius of curvature. It is 3 mm away from the center vertex of the next surface (image surface of lens 1), that is, the center thickness of lens 1 is 3 mm, the refractive index is 1.63547, and the Abbe coefficient is 29.909185.
[0036] Surface 2 is the image plane of lens 1. This surface is a plane with an infinite radius of curvature and is 25 mm away from the next surface (object plane of lens 2).
[0037] Surface 3 is the object surface of lens 2, which is a spherical surface with a curvature radius of 41.598 mm and a distance of 3.325 mm from the center vertex of the next surface (image surface of lens 2), that is, the center thickness of lens 2 is 3.325 mm, the refractive index is 1.789254, and the Abbe coefficient is 49.613485.
[0038] Surface 4 is the image surface of lens 2, which is a spherical surface with a curvature radius of -738.616 mm and a distance of 0.093 mm from the next surface (object surface of lens 3).
[0039] Surface 5 is the object surface of lens 3, which is a spherical surface with a curvature radius of 17.295 mm. The center vertex of this surface is 3.585 mm away from the center vertex of the next surface (image surface of lens 3), that is, the center thickness of lens 3 is 3.585 mm, the refractive index is 1.772501, and the Abbe coefficient is 49.313485.
[0040] Surface 6 is the image surface of lens 3, which is a spherical surface with a curvature radius of 63.190 mm and a distance from the next surface (aperture surface) of 0.746 mm.
[0041] Surface 7 is the aperture surface, which is a virtual surface with an infinitesimal thickness and is 2.709 mm away from the center vertex of the next lens surface (object surface of lens 4).
[0042] Surface 8 is the object plane of lens 4, which is a spherical surface with a curvature radius of -23.485mm. The center vertex of this surface is 6.22mm away from the center vertex of the next surface (image plane of lens 4), that is, the center thickness of lens 4 is 6.22mm, the refractive index is 1.786666, and the Abbe coefficient is 23.787324.
[0043] Surface 9 is the image surface of lens 4, which is a spherical surface with a radius of curvature of 19.678 mm and a distance of 0.715 mm from the central vertex of the next surface (object surface of lens 5).
[0044] Surface 10 is the object surface of lens 5; this surface is a spherical surface with a radius of curvature of 27.549 mm and a distance of 4.678 mm from the central vertex of the next surface (image surface of lens 5); that is, the central thickness of lens 5 is 4.678 mm, the refractive index is 1.772501, and the Abbe coefficient is 49.653485.
[0045] Surface 11 is the image surface of lens 5; this surface is a spherical surface with a curvature radius of -19.770 mm and a distance of 0.1 mm from the central vertex of the next surface (object surface of lens 6).
[0046] Surface 12 is the object surface of lens 6; this surface is a spherical surface with a curvature radius of 15.154 mm and a distance of 4.675 mm from the center vertex of the next surface (image surface of lens 6); that is, the center thickness of lens 6 is 4.675 mm, the refractive index is 1.703664, and the Abbe coefficient is 31.318289.
[0047] Surface 13 is the image surface of lens 6; this surface is a spherical surface with a radius of curvature of 48.339 mm and a distance of 4.490 mm from the next surface (image surface).
[0048] Surface 14 is the lens imaging surface.
[0049]
[0050] The resolution of this optical design is measured using the HR machine:
[0051] At 2.5lp / mm,25℃
[0052] H=0°; V=0°; T≥30%; S≥30%
[0053] H=17.5°; V=0°, T≥30%; S≥20%
[0054] H=17.5°; V=4°, T≥30%; S≥20%.
[0055] The design features of the lens proposed in the utility model are as follows:
[0056] The lens barrel of the utility model uses aluminum material AL6061, which not only reduces the weight but also improves the strength of the lens. Moreover, the surface is oxidized and blackened, which can effectively absorb the reflection of stray light.
[0057] The lens of the utility model is partially coated with a BBAR film on its surface to reduce reflected light, thereby absorbing and dispersing the stray light generated inside the lens to a great extent, thereby greatly reducing the stray light energy on the image plane.
[0058] The utility model can be used in automobile headlights, has a compact size and structure, an overall size of φ61mm×57.7mm, and a field of view of up to 42°; it adopts a 5G1P structure, has low distortion and low glare, and can be used for projection imaging.
[0059] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A lens for a long-distance high-pixel intelligent projection vehicle lighting system, characterized in that: The lens for the long-distance high-pixel intelligent projection vehicle light system comprises: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a lens barrel, a lens cap, and an aperture surface, and from the object space to the image surface of the lens, they are: the first lens, the second lens, the third lens, the aperture surface, the fourth lens, the fifth lens, and the sixth lens, A first clamping ring is arranged between the first lens and the second lens; a second clamping ring is arranged between the second lens and the third lens; a third clamping ring is arranged between the third lens and the fourth lens; a third clamping ring first protrusion and a third clamping ring second protrusion are arranged on the third clamping ring; A fourth clamping ring is arranged between the fifth lens and the sixth lens, and a fourth clamping ring protrusion for clamping the fifth lens and a fourth clamping ring inclined surface for clamping the sixth lens are arranged on the fourth clamping ring; The lens cap is provided with a first hook for clamping the first lens, the lens barrel is provided with a second hook for clamping the sixth lens, and a sealing ring is provided between the lens barrel and the lens cap; the first lens, the second lens, the third lens, the fourth lens, the fifth lens, and the sixth lens are all installed in the lens barrel.
2. The lens for a long-distance high-pixel intelligent projection vehicle light system according to claim 1, characterized in that: The object plane and the image plane of the first lens are both planes, and the thickness of the first lens is 3 mm; the distance between the image plane of the first lens and the central vertex of the object plane of the second lens is 25 mm.
3. The lens for a long-distance high-pixel intelligent projection vehicle light system according to claim 1, characterized in that: The object surface of the second lens is a spherical surface with a curvature radius of 41.598 mm, and the center thickness of the second lens is 3.325 mm; the image surface of the second lens is a spherical surface with a curvature radius of -738.616 mm, and the distance between the image surface of the second lens and the center vertex of the object surface of the third lens is 0.093 mm.
4. The lens for a long-distance high-pixel intelligent projection vehicle light system according to claim 1, characterized in that: The object surface of the third lens is a spherical surface with a curvature radius of 17.295 mm, and the center thickness of the third lens is 3.585 mm; the image surface of the third lens is a spherical surface with a curvature radius of 63.190 mm, and the distance between the image surface of the third lens and the aperture surface is 0.746 mm; the distance between the aperture surface and the center vertex of the object surface of the fourth lens is 2.709 mm.
5. The lens for a long-distance high-pixel intelligent projection vehicle light system according to claim 1, characterized in that: The object surface of the fourth lens is a spherical surface with a curvature radius of -23.485 mm, and the center thickness of the fourth lens is 6.22 mm; the image surface of the fourth lens is a spherical surface with a curvature radius of 19.678 mm, and the distance between the image surface of the fourth lens and the central vertex of the object surface of the fifth lens is 0.715 mm.
6. The lens for a long-distance high-pixel intelligent projection vehicle light system according to claim 1, characterized in that: The object surface of the fifth lens is a spherical surface with a curvature radius of 27.549 mm, and the center thickness of the fifth lens is 4.678 mm; the image surface of the fifth lens is a spherical surface with a curvature radius of -19.770 mm, and the distance between the image surface of the fifth lens and the center vertex of the object surface of the sixth lens is 0.1 mm.
7. The lens for a long-distance high-pixel intelligent projection vehicle light system according to claim 1, characterized in that: The object surface of the sixth lens is a spherical surface with a curvature radius of 15.154 mm, and the center thickness of the sixth lens is 4.675 mm; the image surface of the sixth lens is a spherical surface with a curvature radius of 48.339 mm, and the distance between the image surface of the sixth lens and the image plane is 4.490 mm.
8. The lens for a long-distance high-pixel intelligent projection vehicle lighting system according to any one of claims 1 to 7, characterized in that: The image surfaces and object surfaces of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, and the sixth lens are all lenses coated with BBAR film.