CN218938624U - 8 megapixel-level front-view long-focal-length narrow-angle camera lens - Google Patents
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- CN218938624U CN218938624U CN202222698238.9U CN202222698238U CN218938624U CN 218938624 U CN218938624 U CN 218938624U CN 202222698238 U CN202222698238 U CN 202222698238U CN 218938624 U CN218938624 U CN 218938624U
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Abstract
The utility model relates to an 8 million pixel grade forward-looking long-focus narrow-angle camera lens, which comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a nine lens, a lens barrel and a lens cap, wherein the object space to the image surface of the lens are as follows: the utility model provides a lens which is a small view field and large aperture full glass lens, can be matched with an 8MP sensor, has good optical performance, low ghost and no stray light, and is suitable for being carried on a vehicle. The utility model adopts the BBAR film to reduce reflected light, so that stray light generated in the lens is absorbed and dispersed to a great extent, and the stray light energy of an image plane is greatly reduced. The distortion of the lens is small, and the most realistic photo can be effectively shot.
Description
Technical Field
The utility model relates to a front-view long-focus narrow-angle camera lens, in particular to an 8-million-pixel-level front-view long-focus narrow-angle camera lens which is simple in structure and high in imaging quality and can effectively take the truest photo.
Background
Along with the blowout type development of new energy automobile industry in recent years, car making movement is added in some IT enterprises such as Huacheng and Google for the two years, the intelligent development of automobiles is continuous, and the vehicle-mounted lenses are also endless.
Under the influence of intelligent trend of automobiles, communication and sensing technologies such as automatic driving and automatic parking are continuously developed, and the distance between the automatic driving and the automatic parking is further. Whether new forces are created or traditional automobile factories begin to invest a large amount of research and development resources to promote full-automatic development, an automobile image sensing system is a serious problem in realizing automatic driving.
At present, manufacturers of optical products with relatively competitive power in the market mainly comprise optical factories such as European light and Shuyu, but most of the products have plastic structures and smaller aperture. Unmanned taxis, unmanned delivery vehicles, unmanned sanitation vehicles and the like are all in acceleration landing. The vehicle-mounted camera is an important sensing component of the ADAS system, the number of the single-vehicle cameras is rapidly increased, especially, new potential brands for vehicle manufacturing are more aggressive on the assembly of whole-vehicle sensing hardware, ICVTank prediction is carried out, and the global vehicle-mounted camera market scale in 2025 can reach 273 hundred million dollars. Cameras as the most mature vehicle-mounted sensor will come to develop in the "golden age" at high speed. During this time, its localization will be changed from the original "image acquisition+vision processing" to "specialized image acquisition", evolving toward "coring and high definition".
Under the demand of improving the perception capability of the intelligent automobile, the upgrading of the definition of the camera is a trend, and the upgrading of the price of the camera monomer is boosted. However, it should be noted that, the high definition brings about blowout of data volume, the calculation power and algorithm bring about serious challenges, namely, the increase of the data processing volume is multiplied to bring about improvement of calculation power requirement, and further, the lower chip is required to be upgraded so as to reserve more calculation resources; in the algorithm level, the data containing information is inconsistent due to the fact that the detection distance and the visual angle are different from each other, so that the training algorithm model of the original neural network cannot be completely reused, and cooperation needs to be modified to improve comprehensive performance.
Disadvantages of the conventional art:
1. the lens manufactured by the traditional technology can generate ghost images under the irradiation of strong light, and influence the appearance.
2. The lens manufactured by the traditional technology has small aperture and light quantity, and the shot picture is blurred in the night and cannot work all the day.
3. The lens manufactured by the traditional technology has low strength and is extremely easy to damage in extreme weather.
The reason for the above-mentioned drawbacks:
1. the lens is composed of a plurality of lenses, the lenses are made of materials such as glass or plastics, and if special treatment is not carried out, the incident light rays are reflected on the surface of the lens. When strong light enters the lens, multiple reflections are generated inside each lens and the camera, and the reflection is performed on the surface of the metal sub-component, so that the phenomenon seen by people in actual shooting is ghost.
2. The large diaphragm, if it is to be made, is affected by many factors, the two most important of which are the difficulty of optical design and assembly and debugging. The larger the aperture is, the larger the aperture of the light beam is, and the more light rays are difficult to be converged into the pixel point after being refracted by the lens. Large aperture lenses tend to be accompanied by a lot of higher order aberrations, and if the lens is deviated from the optical axis or tilted, the image quality decays faster than small aperture lenses, so that a large aperture has a higher requirement for the accuracy of the adjustment.
3. In order to be exposed to severe environments (strong illumination, sand dust, rainwater, mud and the like) for a long time, the performance requirements of the vehicle-mounted lens are extremely high, and a series of tests of high-low temperature impact, corrosion resistance, vibration resistance, water resistance, salt fog resistance and the like are required to be met. The lens manufactured by the conventional technology cannot meet the series of tests.
Disclosure of Invention
Aiming at the problems, the main purpose of the utility model is to provide an 8 million-pixel-grade front-view long-focal-length narrow-angle camera lens for automatic driving, which has simple structure and high imaging quality and can effectively take the truest photo.
The utility model solves the technical problems by the following technical proposal: an 8-megapixel-level front-view long-focus narrow-angle camera lens, the 8-megapixel-level front-view long-focus narrow-angle camera lens comprising: the lens comprises a first lens, a second lens, a third lens, a diaphragm hole surface, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens, protective glass, a lens cone and a lens cap, wherein the object space to the image surface of the lens are as follows: the first lens, the second lens, the diaphragm aperture surface, the third lens, the fourth lens, the fifth lens, the sixth lens, the seventh lens, the eighth lens, the ninth lens and the protective glass; the ninth lens is an optical filter, and the outer side of the image surface of the protective glass is a lens imaging surface.
The image surfaces and the object surfaces of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, the seventh lens, the eighth lens, the ninth lens and the protective glass are plated with BBAR films.
The second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, the seventh lens, the eighth lens and the ninth lens are fixedly arranged in the lens cone, the first lens is clamped in the first lens cap, and a lens cap barb is arranged at the joint of the first lens and the lens cap.
A first clamping ring is arranged between the first lens and the lens cone, a second clamping ring is arranged between the first lens and the second lens, a third clamping ring is arranged between the fourth lens and the fifth lens, a fourth clamping ring is arranged between the fifth lens and the sixth lens, steps are arranged at the upper end and the lower end of one side of an image surface of the seventh lens, a fifth clamping ring is arranged between the steps and the lens cone, and a sixth clamping ring is arranged between the eighth lens and the ninth lens.
A first sealing ring is arranged between the lens cap and the lens cone; a second sealing ring is arranged between the second lens cap and the lens cone; the upper and lower ends of the object plane of the eighth lens are clung to the fifth clamping ring.
In a specific embodiment of the present utility model, the object plane of the first lens is a sphere, the radius of curvature is 9.957mm, and the center thickness of the first lens is 1.927mm; the image surface of the first lens is spherical, the curvature radius is 14.312mm, and the distance between the image surface of the first lens and the center vertex of the second lens object surface is 0.634mm.
In a specific embodiment of the present utility model, the object plane of the second lens is a sphere, the radius of curvature is 7.718mm, and the center thickness of the second lens is 5.134mm; the image surface of the second lens is a spherical surface, the curvature radius is 5.134mm, and the distance between the image surface of the second lens and the central vertex of the third lens object surface is 1.747mm; the diaphragm Kong Mianju is 0.444mm from the center vertex of the third lens object plane.
In a specific embodiment of the present utility model, the radius of curvature of the object plane spherical surface of the third lens is-16.202 mm, and the center thickness of the third lens is 4.150mm; the image surface of the third lens is spherical, the curvature radius is-5.169 mm, and the distance between the image surface of the third lens and the center vertex of the fourth lens object surface is 0.
In a specific embodiment of the present utility model, the object plane of the fourth lens is a sphere, the radius of curvature is-5.169 mm, and the center thickness of the fourth lens is 1.866mm; the image surface of the fourth lens is spherical, the curvature radius is-29.657 mm, and the distance between the image surface of the fourth lens and the center vertex of the object surface of the fifth lens is 0.091mm.
In a specific embodiment of the present utility model, the object plane of the fifth lens is a sphere, the radius of curvature is 48.452mm, and the center thickness of the fifth lens is 5.249mm; the image surface of the fifth lens is spherical, the curvature radius is-10.515 mm, and the distance between the image surface of the fifth lens and the center vertex of the sixth lens object plane is 0.091mm.
In a specific embodiment of the present utility model, the object plane of the sixth lens is a sphere, the radius of curvature is 12.083mm, and the center thickness of the sixth lens is 5.188mm; the image surface of the sixth lens is a spherical surface, the curvature radius is-12.932 mm, and the distance between the image surface of the sixth lens and the center vertex of the seventh lens object surface is 0.
In a specific embodiment of the present utility model, the object plane of the seventh lens is a sphere, the radius of curvature is-12.932 mm, and the center thickness of the seventh lens is 7.849mm; the image surface of the seventh lens is spherical, the curvature radius is-94.017 mm, and the distance between the image surface of the seventh lens and the center vertex of the eighth lens object plane is 1.179mm.
In a specific embodiment of the present utility model, the object plane of the eighth lens is a sphere, the radius of curvature is-9.461 mm, and the center thickness of the eighth lens is 0.500mm; the image surface of the eighth lens is spherical, the curvature radius is-87.725 mm, and the distance between the image surface of the eighth lens and the center vertex of the object surface of the ninth lens is 0.100mm.
In a specific embodiment of the present utility model, the object plane and the image plane of the ninth lens are both planes, the thickness is 1.000mm, and the distance between the ninth lens and the object plane of the chip protection glass is 2.058mm; the thickness of the chip protection glass is 0.5000mm, and the distance between the chip protection glass and the imaging surface of the lens is 0.124mm.
The utility model has the positive progress effects that: the 8-megapixel-level forward-looking long-focus narrow-angle camera lens provided by the utility model has the following advantages: the lens provided by the utility model is a small-view-field and large-aperture all-glass lens, can be matched with an 8MP sensor, has good optical performance, low ghosting and no stray light, and is suitable for vehicle-mounted.
The lens provided by the utility model uses the full glass lens, has stable optical performance, low glare and higher reliability.
The utility model has high environmental adaptability, and can reach IP69 through the reliability test of vehicle-mounted application.
The lens of the utility model has small distortion and can effectively take the most realistic picture.
In the optical design process, the utility model comprehensively considers the increase of the number of lenses, the adjustment and the arrangement of the lenses, the optimization of the shape and the materials, and the stability of the lens is ensured by using the all-glass lens.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a schematic view of an imaging optical path according to the present utility model.
The following are names corresponding to the reference numerals in the present utility model:
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 seventh lens 7, the eighth lens 8, the ninth lens 9, the cover glass 10, the first collar 11, the second collar 12, the third collar 13, the fourth collar 14, the fifth collar 15, the sixth collar 16, the lens barrel 17, the lens cap 18, the lens cap barb 19, the first sealing ring 20, the second sealing ring 21, and the diaphragm aperture surface 22.
Detailed Description
The following description of the preferred embodiments of the present utility model is given with reference to the accompanying drawings, so as to explain the technical scheme of the present utility model in detail.
Fig. 1 is a schematic overall structure of the present utility model, and fig. 2 is a schematic image light path of the present utility model, as shown in fig. 1 and 2, the present utility model provides an 8 million-pixel-level front-view long-focal-length narrow-angle camera lens, the 8 million-pixel-level front-view long-focal-length narrow-angle camera lens comprising: the first lens 1, the second lens 2, the third lens 3, the diaphragm aperture surface 22, the fourth lens 4, the fifth lens, the sixth lens, the seventh lens, the eighth lens, the ninth lens 9, the protective glass 10, the lens barrel 17 and the lens cap 18 are sequentially from the object space to the image surface of the lens: a first lens 1, a second lens 2, a diaphragm aperture surface 22, a third lens 3, a fourth lens 4, a fifth lens 5, a sixth lens 6, a seventh lens 7, an eighth lens 8, a ninth lens 9 and a protective glass 10; the ninth lens 9 is an optical filter, and the outside of the image plane of the cover glass 10 is a lens imaging plane.
The image surfaces and object surfaces of 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 seventh lens 7, the eighth lens 8, the ninth lens 9 and the protective glass 10 are plated with BBAR films.
The second lens 2, the third lens 3, the fourth lens 4, the fifth lens 5, the sixth lens 6, the seventh lens 7, the eighth lens 8 and the ninth lens 9 are fixedly arranged in the lens barrel 17, the first lens 1 is clamped in the first lens cap 18, and a lens cap barb 19 is arranged at the joint of the first lens and the lens cap 18.
A first clamping ring 11 is arranged between the first lens 1 and the lens barrel 17, a second clamping ring 12 is arranged between the first lens 1 and the second lens, a third clamping ring 13 is arranged between the fourth lens and the fifth lens, a fourth clamping ring 14 is arranged between the fifth lens and the sixth lens, steps are arranged at the upper end and the lower end of one side of an image surface of the seventh lens, a fifth clamping ring 15 is arranged between the steps and the lens barrel, and a sixth clamping ring 16 is arranged between the eighth lens and the ninth lens.
A first sealing ring 20 is arranged between the lens cap and the lens cone; a second sealing ring 21 is arranged between the second lens cap and the lens barrel; the upper and lower ends of the object plane of the eighth lens are tightly attached to the fifth collar 15.
The following is a specific example: in the following text and tables, lens 1 is a first lens, lens 2 is a second lens, lens 3 is a third lens, lens 4 is a fourth lens, lens 5 is a fifth lens, lens 6 is a sixth lens 6, lens 7 is a seventh lens 7, lens 8 is an eighth lens, and lens 9 is a ninth lens.
The detailed parameters of the design are listed in table 1, the first row lists the main parameters of the lens, focal length f= 3.90389mm, aperture F/# = 1.6, total optical track length ttl= 30.0588.
The title bar of table 1 lists: "surface", "type", "radius of curvature", "thickness", "refractive index" and "abbe coefficient". The lens element material is defined by a refractive index and an abbe coefficient. In table 1, one blank cell in the "index" column indicates that the value in the "thickness" cell next to it 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 588 nm.
In table 1, the object plane radius of curvature is infinity, i.e., the plane, from the center vertex of the next surface (object plane of lens 1).
Surface 1 is the lens 1 object plane, which is spherical, with a radius of curvature of 9.957mm, 1.927mm from the center vertex of the next surface (lens 1 image plane), i.e., lens 1 center thickness of 1.927mm, refractive index of 1.833996, abbe's coefficient 37.2291.
The surface 2 is the image surface of the lens 1, the surface is spherical, the curvature radius is 14.312mm, and the distance from the next surface (the object surface of the lens 2) is 0.634mm.
Surface 3 is the object plane of lens 2, which is spherical, with a radius of curvature of 7.718mm, 5.134mm from the center vertex of the next surface (the image plane of lens 2), i.e., the center thickness of lens 2 is 5.134mm, the refractive index is 1.698948, and the abbe's coefficient is 30.0531.
The surface 4 is the image surface of the lens 2, which is spherical, with a radius of curvature of 5.134mm, 1.747mm from the next surface (object surface of the lens 3).
The surface 5 is a diaphragm aperture surface, the diaphragm aperture is a virtual surface, the thickness is infinitesimal, and the distance from the center vertex of the surface (object plane of the lens 3) of the next lens is 0.444mm.
The surface 6 is the object surface of the lens 3, the surface is spherical, the curvature radius is-16.202 mm, the center vertex of the surface is 4.150mm away from the center vertex of the next surface (the image surface of the lens 3), namely, the center thickness 4.150mm of the lens 3, the refractive index is 1.620412, and the Abbe coefficient is 60.3739.
The surface 7 is the image plane of the lens 3, and since the surface is spaced 0 from the object plane of the lens 4 and has the same radius of curvature, the surface 7 is both the image plane of the lens 3 and the object plane of the lens 4, and is spherical, with a radius of curvature of-5.169 mm, a distance of 1.866mm from the next surface (the image plane of the lens 4), a center thickness of 1.866mm of the lens 4, a refractive index of 1.834810, and an abbe's coefficient 42.7275.
The surface 8 is the image surface of the lens 4, which is spherical, with a radius of curvature of-29.657 mm, 0.091mm from the next surface (lens 5).
Surface 9 is the lens 5 object plane, which is spherical with a radius of curvature of 48.452mm, and the center vertex of which is 5.249mm from the center vertex of the next surface (lens 5 image plane), i.e., the lens 5 center thickness 5.249mm, refractive index of 1.592824, abbe's coefficient 68.6244.
The surface 10 is the image surface of the lens 5, which is spherical, with a radius of curvature of-10.515 mm, 0.091mm from the center vertex of the next surface (object surface of lens 6).
The surface 11 is the object surface of the lens 6, the surface is a spherical surface, the curvature radius is 12.083mm, and the distance from the center vertex of the next surface (the image surface of the lens 6) is 5.188mm; i.e. the center thickness 5.188mm of the lens 6, with a refractive index of 1.617998 and abbe's coefficient 63.4058.
The surface 12 is the image surface of the lens 6; since this surface has an object-plane spacing of 0 and the same surface radius of curvature as that of the lens 7, the surface 12 is both the image surface of the lens 6 and the object surface of the lens 7, and this surface is a spherical surface with a radius of curvature of-12.932 mm and 7.849mm from the next surface (image surface of the lens 7), and the center thickness of the lens 7 is 7.849mm, the refractive index is 1.581444, and the abbe system 40.9156.
The surface 13 is the image surface of the lens 7; the surface is spherical, the radius of curvature is-94.017 mm, and 1.179mm from the center vertex of the next surface (lens 8 object plane).
The surface 15 is the image surface of the lens 8; the surface is spherical, the curvature radius is-87.725 mm, and the distance from the center vertex of the next surface (filter object plane) is 0.100mm.
The surface 16 is the filter (lens 9) object plane, which is a plane with infinite radius of curvature and is 1.000mm from the next surface (filter image plane), i.e. 1.000mm thick, with a refractive index of 1.516797 and an abbe's coefficient of 64.2124.
The surface 17 is an optical filter image plane, which is a plane with infinite radius of curvature and is 2.058mm from the next surface (chip protection glass object plane).
The surface 18 is the surface of the chip protection glass (lens 10) which is planar with an infinite radius of curvature and is 0.5000mm from the next surface (chip protection glass image surface), i.e. the chip protection glass is 0.5000mm thick, has a refractive index of 1.516797 and an abbe's coefficient of 64.2124.
The surface 19 is the image surface of the chip protection glass, which is a plane with infinite radius of curvature, and is 0.124mm from the next surface (image surface).
The surface 20 is the lens imaging surface.
The lens provided by the utility model is a small-view-field and large-aperture all-glass lens, can be matched with an 8MP sensor, has good optical performance, low ghosting and no stray light, and is suitable for vehicle-mounted.
The lens provided by the utility model uses the full glass lens, has stable optical performance, low glare and higher reliability.
The utility model has high environmental adaptability, and can reach IP69 through the reliability test of vehicle-mounted application.
The lens of the utility model has small distortion and can effectively take the most realistic picture.
In the optical design process, the utility model comprehensively considers the increase of the number of lenses, the adjustment and the arrangement of the lenses, the optimization of the shape and the materials, and the stability of the lens is ensured by using the all-glass lens.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing embodiments, which have been described in the foregoing embodiments and description merely illustrates the principles of the utility model, and that various changes and modifications may be effected therein without departing from the spirit and scope of the utility model as defined in the appended claims and their equivalents.
Claims (10)
1. An 8 megapixel-level front-view long-focus narrow-angle camera lens, which is characterized in that: the 8 megapixel-level front-view long-focal-length narrow-angle camera lens includes: the lens comprises a first lens, a second lens, a third lens, a diaphragm hole surface, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens, protective glass, a lens cone and a lens cap, wherein the object space to the image surface of the lens are as follows: the first lens, the second lens, the diaphragm aperture surface, the third lens, the fourth lens, the fifth lens, the sixth lens, the seventh lens, the eighth lens, the ninth lens and the protective glass; the ninth lens is an optical filter, and the outer side of the image surface of the protective glass is a lens imaging surface;
the image surfaces and the object surfaces of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, the seventh lens, the eighth lens, the ninth lens and the protective glass are plated with BBAR films;
the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, the seventh lens, the eighth lens and the ninth lens are fixedly arranged in the lens cone, the first lens is clamped in the first lens cap, and a lens cap barb is arranged at the joint of the first lens and the lens cap;
a first clamping ring is arranged between the first lens and the lens cone, a second clamping ring is arranged between the first lens and the second lens, a third clamping ring is arranged between the fourth lens and the fifth lens, a fourth clamping ring is arranged between the fifth lens and the sixth lens, steps are arranged at the upper end and the lower end of one side of an image surface of the seventh lens, a fifth clamping ring is arranged between the steps and the lens cone, and a sixth clamping ring is arranged between the eighth lens and the ninth lens;
a first sealing ring is arranged between the lens cap and the lens cone; a second sealing ring is arranged between the second lens cap and the lens cone; the upper and lower ends of the object plane of the eighth lens are clung to the fifth clamping ring.
2. The 8 megapixel-level front-view long-focal-length narrow-angle camera lens of claim 1, wherein: the object plane of the first lens is a spherical surface, the curvature radius is 9.957mm, and the center thickness of the first lens is 1.927mm; the image surface of the first lens is spherical, the curvature radius is 14.312mm, and the distance between the image surface of the first lens and the center vertex of the second lens object surface is 0.634mm.
3. The 8 megapixel-level front-view long-focal-length narrow-angle camera lens of claim 1, wherein: the object plane of the second lens is a spherical surface, the curvature radius is 7.718mm, and the center thickness of the second lens is 5.134mm; the image surface of the second lens is a spherical surface, the curvature radius is 5.134mm, and the distance between the image surface of the second lens and the central vertex of the third lens object surface is 1.747mm; the diaphragm Kong Mianju is 0.444mm from the center vertex of the third lens object plane.
4. The 8 megapixel-level front-view long-focal-length narrow-angle camera lens of claim 1, wherein: the spherical surface of the object surface of the third lens is provided with a curvature radius of-16.202 mm, and the central thickness of the third lens is 4.150mm; the image surface of the third lens is spherical, the curvature radius is-5.169 mm, and the distance between the image surface of the third lens and the center vertex of the fourth lens object surface is 0.
5. The 8 megapixel-level front-view long-focal-length narrow-angle camera lens of claim 1, wherein: the object plane of the fourth lens is a spherical surface, the curvature radius is-5.169 mm, and the center thickness of the fourth lens is 1.866mm; the image surface of the fourth lens is spherical, the curvature radius is-29.657 mm, and the distance between the image surface of the fourth lens and the center vertex of the object surface of the fifth lens is 0.091mm.
6. The 8 megapixel-level front-view long-focal-length narrow-angle camera lens of claim 1, wherein: the object plane of the fifth lens is a spherical surface, the curvature radius is 48.452mm, and the center thickness of the fifth lens is 5.249mm; the image surface of the fifth lens is spherical, the curvature radius is-10.515 mm, and the distance between the image surface of the fifth lens and the center vertex of the sixth lens object plane is 0.091mm.
7. The 8 megapixel-level front-view long-focal-length narrow-angle camera lens of claim 1, wherein: the object plane of the sixth lens is a spherical surface, the curvature radius is 12.083mm, and the center thickness of the sixth lens is 5.188mm; the image surface of the sixth lens is a spherical surface, the curvature radius is-12.932 mm, and the distance between the image surface of the sixth lens and the center vertex of the seventh lens object surface is 0.
8. The 8 megapixel-level front-view long-focal-length narrow-angle camera lens of claim 1, wherein: the object plane of the seventh lens is a spherical surface, the curvature radius is-12.932 mm, and the center thickness of the seventh lens is 7.849mm; the image surface of the seventh lens is spherical, the curvature radius is-94.017 mm, and the distance between the image surface of the seventh lens and the center vertex of the eighth lens object plane is 1.179mm.
9. The 8 megapixel-level front-view long-focal-length narrow-angle camera lens of claim 1, wherein: the object plane of the eighth lens is a spherical surface, the curvature radius is-9.461 mm, and the center thickness of the eighth lens is 0.500mm; the image surface of the eighth lens is spherical, the curvature radius is-87.725 mm, and the distance between the image surface of the eighth lens and the center vertex of the object surface of the ninth lens is 0.100mm.
10. The 8 megapixel-level front-view long-focal-length narrow-angle camera lens of claim 1, wherein: the object plane and the image plane of the ninth lens are planes, the thickness is 1.000mm, and the distance between the ninth lens and the object plane of the chip protection glass is 2.058mm; the thickness of the chip protection glass is 0.5000mm, and the distance between the chip protection glass and the imaging surface of the lens is 0.124mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222698238.9U CN218938624U (en) | 2022-10-13 | 2022-10-13 | 8 megapixel-level front-view long-focal-length narrow-angle camera lens |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222698238.9U CN218938624U (en) | 2022-10-13 | 2022-10-13 | 8 megapixel-level front-view long-focal-length narrow-angle camera lens |
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| CN218938624U true CN218938624U (en) | 2023-04-28 |
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| CN202222698238.9U Active CN218938624U (en) | 2022-10-13 | 2022-10-13 | 8 megapixel-level front-view long-focal-length narrow-angle camera lens |
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- 2022-10-13 CN CN202222698238.9U patent/CN218938624U/en active Active
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