CN213715585U - Short-distance detection camera lens of automatic driving vision system - Google Patents
Short-distance detection camera lens of automatic driving vision system Download PDFInfo
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- CN213715585U CN213715585U CN202022176334.8U CN202022176334U CN213715585U CN 213715585 U CN213715585 U CN 213715585U CN 202022176334 U CN202022176334 U CN 202022176334U CN 213715585 U CN213715585 U CN 213715585U
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Abstract
The utility model relates to a short-distance detection camera lens of an automatic driving vision system, which comprises a first lens, a second lens, a third lens, a diaphragm orifice plate, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens; the diaphragm orifice plate is positioned between the third lens and the fourth lens; the object space to the image plane of the camera lens are as follows: the lens comprises a first lens, a second lens, a third lens, a diaphragm orifice plate, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens. The utility model provides a lens cone uses aluminum product AL6061, has both alleviateed weight, has improved the intensity of camera lens again. The utility model discloses have high environmental suitability, can pass through the reliability test of on-vehicle usage, waterproof dustproof grade reaches IP 54. The utility model discloses a BBAR membrane is plated on partial surface of lens in order to reduce the reverberation, absorbs and has dispersed the inside stray light that produces of camera lens at to a great extent, makes the stray light energy on image plane reduce by a wide margin.
Description
Technical Field
The utility model relates to a camera lens, concretely relates to when satisfying well distance autopilot imaging system, possess high wide angle, low distortion, wide DOF, the close range detection camera lens of autopilot visual system of the characteristics of ultra high stability.
Background
At the present stage, the development of an automatic driving technology is well-established and is influenced by the intellectualization of a high-end automobile, and the continuous development of artificial intelligence, communication and sensing technologies brings a step closer to the realization of automatic driving. Both scientific and technical enterprises and traditional automobile factories begin to invest a lot of research and development resources to promote full-automatic development. The 3D photographing technique is the most important in realizing automatic driving.
SUMMERY OF THE UTILITY MODEL
To the above problem, the main object of the present invention is to provide a close range detection camera lens of an automatic driving vision system having high wide angle, low distortion, wide DOF and ultra-high stability when satisfying an automatic driving imaging system of a middle distance.
The utility model discloses a solve above-mentioned technical problem through following technical scheme: a close-up detection camera lens of an autonomous driving vision system, the close-up detection camera lens of the autonomous driving vision system comprising: the lens comprises a first lens, a second lens, a third lens, a diaphragm orifice plate, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens.
And the diaphragm orifice plate is provided with a diaphragm orifice and is positioned between the third lens and the fourth lens.
The object space to the image plane of the camera lens are as follows: the lens comprises a first lens, a second lens, a third lens, a diaphragm orifice plate, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens.
The second lens and the third lens are provided with step portions matched with the outer frame, and after the fourth lens and the fifth lens are installed, the fourth lens and the fifth lens form step portions matched with the outer frame.
The plateau portion of the second lens step is higher than the lowest point of the phase surface of the second lens.
In a specific embodiment of the present invention, the object plane of the first lens is a spherical surface, the curvature radius is 8.82mm, and the center thickness of the first lens is 1.0 mm; the image plane of the first lens is spherical, the curvature radius is 4.789mm, and the distance from the image plane of the first lens to the object plane of the second lens is 3.615 mm.
In a specific embodiment of the present invention, the object plane of the second lens is a spherical surface, the curvature radius is 22.172mm, and the center thickness of the second lens is 0.5 mm; the image plane of the second lens is spherical, the curvature radius is 5.554mm, and the image plane of the second lens is 2.449mm away from the object plane of the third lens.
In a specific embodiment of the present invention, the object plane of the third lens is a spherical surface, the curvature radius is 9.745mm, and the center thickness of the third lens is 3.692 mm; the image plane of the third lens is a spherical surface, the curvature radius is 16.795mm, and the distance from the image plane of the third lens to the diaphragm orifice plate is 1.3139 mm.
In a specific embodiment of the present invention, the object plane of the fourth lens is a spherical surface, the curvature radius is 48.215mm, and the center thickness of the fourth lens is 2.795 mm; the image plane of the fourth lens is a spherical surface, the curvature radius is 3.76mm, and the distance from the image plane of the fourth lens to the center vertex of the fifth lens is 0.
In a specific embodiment of the present invention, the object plane of the fifth lens is a spherical surface, the curvature radius is 3.05mm, and the center thickness of the fifth lens is 2.795 mm; the image plane of the fifth lens is a spherical surface, the curvature radius is 9.996mm, and the distance from the central vertex of the image plane of the fifth lens to the central vertex of the sixth lens is 0.1 mm.
In a specific embodiment of the present invention, the object plane of the sixth lens is a spherical surface, the curvature radius is 17.334mm, and the center thickness of the sixth lens is 2.806 mm; the image plane of the sixth lens is a spherical surface, the curvature radius is 11.245mm, and the distance from the central vertex of the image plane of the sixth lens to the central vertex of the seventh lens is 0.203 mm.
In a specific embodiment of the present invention, the object plane of the seventh lens is a spherical surface, the curvature radius is 20.693mm, and the center thickness of the seventh lens is 1.479 mm; the image plane of the seventh lens is a plane, and the distance from the image plane of the seventh lens to the center vertex of the eighth lens is 2.447 mm.
In a specific embodiment of the present invention, the object plane of the eighth lens is a spherical surface, the curvature radius is 9.082mm, and the center thickness of the eighth lens is 0.47 mm; the image plane of the eighth lens is a spherical surface, the curvature radius is 160.665mm, and the distance from the central vertex of the image plane of the eighth lens to the central vertex of the ninth lens is 0.5 mm.
In the specific implementation example of the present invention, the ninth lens is a chip protection glass object surface, the object surface is a plane, the image surface of the ninth lens is a plane, and the thickness of the ninth lens is 0.5000 mm.
The utility model discloses an actively advance the effect and lie in: the utility model provides an autopilot vision system's short-range detection camera lens has following advantage: the utility model provides a lens cone uses aluminum product AL6061, has both alleviateed weight, has improved the intensity of camera lens again. The utility model discloses have high environmental suitability, can pass through the reliability test of on-vehicle usage, waterproof dustproof grade reaches IP 54. The utility model discloses a BBAR membrane is plated on partial surface of lens in order to reduce the reverberation, absorbs and has dispersed the inside stray light that produces of camera lens at to a great extent, makes the stray light energy on image plane reduce by a wide margin. The utility model discloses the distortion of camera lens is little, can effectively take out the truest photo. The utility model discloses a light ring is big, can increase the luminous flux, reduces the depth of field, makes the picture brighter, does benefit to the night scene and shoots. The utility model is used for look around under the big visual field formation of image.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
The utility model discloses the name that well reference numeral corresponds:
the device 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 seventh lens 7, an eighth lens 8, a ninth lens 9 and a diaphragm aperture plate 10.
Detailed Description
The following provides a preferred embodiment of the present invention with reference to the accompanying drawings to explain the technical solutions of the present invention in detail.
Fig. 1 is a schematic view of the overall structure of the present invention, as shown in fig. 1, the present invention provides a short-distance detection camera lens of an automatic driving vision system, which includes a first lens 1, a second lens 2, a third lens 3, a diaphragm aperture plate 10, a fourth lens 4, a fifth lens 5, a sixth lens 6, a seventh lens 7, an eighth lens 8, and a ninth lens 9; the diaphragm aperture plate 10 is provided with a diaphragm aperture, and the diaphragm aperture plate is positioned between the third lens and the fourth lens.
The object space to the image plane of the camera lens are as follows: the lens comprises a first lens 1, a second lens 2, a third lens 3, a diaphragm aperture plate 10, a fourth lens 4, a fifth lens 5, a sixth lens 6, a seventh lens 7, an eighth lens 8 and a ninth lens 9.
The second lens 2 and the third lens 3 are provided with step parts matched with the outer frame, and after the fourth lens 4 and the fifth lens 5 are installed, the fourth lens 4 and the fifth lens 5 form step parts matched with the outer frame.
The plateau portion of the step of the second lens 2 is higher than the lowest point of the phase surface of the second lens. I.e., the "a" line is slightly to the left of the "B" line in fig. 1.
Table 1 shows relevant parameters of each lens in the present invention, and the specific implementation example of the present invention is given with reference to fig. 1 and table 1.
The detailed parameters of the design are listed in table 1, and the first row lists the main parameters of the lens, i.e., focal length F is 6.509mm, F/#is2.2, and total optical track length TTL is 29.0189.
The title column of table 1 lists: "surface", "type", "radius of curvature", "thickness", "refractive index" and "Abbe's number". The lens element material is defined by a refractive index and an abbe number. In Table 1, a blank cell in the "refractive 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 588 nm.
In Table 1, the radius of curvature of the object plane is infinite, i.e., the plane, at infinity from the center vertex of the next surface (object plane of first lens 1).
The surface 1 is the object plane of the first lens 1, the surface is a spherical surface, the curvature radius is 8.82, the distance from the central vertex of the next surface (the image plane of the first lens 1) is 1.0mm, namely the central thickness of the first lens 1 is 1.0mm, the refractive index is 1.5928, and the Abbe coefficient is 68.6243.
The surface 2 is the image surface of the first lens 1, which is spherical, and has a radius of curvature of 4.789 and is 3.615mm from the next surface (object surface of the second lens 2).
The surface 3 is the object plane of the second lens 2, the surface is a spherical surface, the curvature radius is 22.172, the distance from the central vertex of the next surface (the image plane of the second lens 2) is 0.5mm, namely the central thickness of the second lens 2 is 0.5mm, the refractive index is 1.4874, and the Abbe coefficient is 70.4196.
The surface 4 is the image surface of the second lens 2, which is a spherical surface with a radius of curvature of 5.554 and is 2.449mm away from the next surface (the object surface of the third lens 3).
The surface 5 is the object plane of the third lens 3, the surface is a spherical surface, the curvature radius is 9.745, the central vertex of the surface is 3.692mm away from the central vertex of the next surface (the image plane of the third lens 3), namely the central thickness of the third lens 3 is 3.692mm, the refractive index is 1.804, and the Abbe coefficient is 46.5676.
The surface 6 is the image surface of the third lens 3, which is spherical with a radius of curvature of 16.795 and is 1.3139mm from the next surface (aperture).
The surface 7 is a diaphragm hole surface, the diaphragm hole is a virtual surface, the thickness is infinitesimal and the distance from the central vertex of the next lens surface (the object surface of the fourth lens 4) is 1.917 mm.
The surface 8 is the object plane of the fourth lens 4, the surface is a spherical surface, the curvature radius is 48.215, the central vertex of the surface is 2.795mm away from the central vertex of the next surface (the image plane of the fourth lens 4), namely the central thickness 2.795mm of the fourth lens 4, the refractive index is 1.5928, and the Abbe coefficient is 68.6243.
The surface 9 is the image surface of the fourth lens 4, since the distance between the image surface and the object plane of the fifth lens 5 is 0 and the curvature radius of the surface is the same, the surface 9 is the image surface of the fourth lens 4 and the object plane of the fifth lens 5, the surface is a spherical surface, the curvature radius is 3.76mm, the distance from the next surface (the image surface of the fifth lens 5) is 2.795mm, the center thickness of the fifth lens 5 is 2.795mm, the refractive index is 1.8466, and the abbe number is 23.7848.
The surface 10 is the image surface of the fifth lens 5, the surface is a spherical surface, the curvature radius is 9.996mm, and the central vertex of the surface is 0.1mm away from the central vertex of the next surface.
The surface 11 is the object plane of the sixth lens 6, the surface is a spherical surface, the curvature radius is 17.334mm, the central vertex of the surface is 2.806mm away from the central vertex of the next surface (the image plane of the sixth lens 6), namely the central thickness 2.806mm of the sixth lens 6, the refractive index is 1.5928, and the Abbe coefficient is 68.6243.
The surface 12 is the image plane of the sixth lens 6, which is spherical, with a radius of curvature of 11.245, and is 0.203mm from the central vertex of the next surface (the image plane of the seventh lens 7).
The surface 13 is the object plane of the seventh lens 7, the surface is a spherical surface, the curvature radius is 20.693, the central vertex of the surface is 1.479mm away from the central vertex of the next surface (the image plane of the seventh lens 7), namely the central thickness 1.479mm of the seventh lens 7, the refractive index is 1.953749, and the Abbe coefficient is 17.9439.
The surface 14 is the image surface of the seventh lens 7, which is a plane with infinite radius of curvature, 2.447mm from the central vertex of the next surface (the object surface of the eighth lens 8).
The surface 15 is the object plane of the eighth lens 8, the surface is a spherical surface, the curvature radius is 9.082, the central vertex of the surface is 0.47mm away from the central vertex of the next surface (the image plane of the eighth lens 8), namely the central thickness of the eighth lens 8 is 0.47mm, the refractive index is 1.8466, and the Abbe coefficient is 23.7848.
The surface 16 is the image surface of the eighth lens 8, which is a spherical surface with a radius of curvature of 160.665 and is 0.5mm from the central vertex of the next surface (chip protection glass object surface).
The surface 17 is a chip protection glass object surface, namely the ninth lens 9, the surface is a plane, the curvature radius is infinite, the distance from the next surface (chip protection glass image surface) is 0.5000mm, namely the chip protection glass is 0.5000mm thick, the refractive index is 1.516797, and the Abbe coefficient is 64.2124.
The surface 18 is the chip protection glass image plane, which is a plane with infinite curvature radius and 2.232mm from the next surface (image plane). Surface 19 is the lens imaging plane.
In specific implementation process, the utility model discloses well lens cone uses aluminum product AL6061, has both alleviateed weight, has improved the intensity of camera lens again.
The utility model discloses have high environmental suitability, can pass through the reliability test of on-vehicle usage, waterproof dustproof grade reaches IP 54.
The utility model discloses an all lens part surfaces all can plate BBAR membrane in order to reduce the reverberation, absorb and dispersed the inside stray light that produces of camera lens at to a great extent, make the stray light energy of image plane reduce by a wide margin.
The utility model discloses the distortion of camera lens is little, can effectively take out the truest photo.
The utility model discloses a light ring is big, can increase the luminous flux, reduces the depth of field, makes the picture brighter, does benefit to the night scene and shoots.
The utility model discloses an imaging performance when camera lens closely 20m is more excellent in on-vehicle vision system.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.
Claims (10)
1. A short-distance detection camera lens of an automatic driving vision system is characterized in that: the close-up detection camera lens of the automatic driving vision system comprises: the lens comprises a first lens, a second lens, a third lens, a diaphragm orifice plate, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens;
the diaphragm orifice plate is provided with a diaphragm orifice and is positioned between the third lens and the fourth lens;
the object space to the image plane of the camera lens are as follows: the lens comprises a first lens, a second lens, a third lens, a diaphragm orifice plate, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens;
the second lens and the third lens are provided with step parts matched with the outer frame, and after the fourth lens and the fifth lens are installed, the fourth lens and the fifth lens form step parts matched with the outer frame;
the platform part of the second lens step is higher than the lowest point of the image surface of the second lens.
2. The close-up detection camera lens of an auto-driving vision system of claim 1, characterized in that: the object plane of the first lens is a spherical surface, the curvature radius is 8.82mm, and the center thickness of the first lens is 1.0 mm; the image plane of the first lens is spherical, the curvature radius is 4.789mm, and the distance from the image plane of the first lens to the object plane of the second lens is 3.615 mm.
3. The close-up detection camera lens of an auto-driving vision system of claim 1, characterized in that: the object plane of the second lens is a spherical surface, the curvature radius is 22.172mm, and the center thickness of the second lens is 0.5 mm; the image plane of the second lens is spherical, the curvature radius is 5.554mm, and the image plane of the second lens is 2.449mm away from the object plane of the third lens.
4. The close-up detection camera lens of an auto-driving vision system of claim 1, characterized in that: the object plane of the third lens is a spherical surface, the curvature radius is 9.745mm, and the center thickness of the third lens is 3.692 mm; the image plane of the third lens is a spherical surface, the curvature radius is 16.795mm, and the distance from the image plane of the third lens to the diaphragm orifice plate is 1.3139 mm.
5. The close-up detection camera lens of an auto-driving vision system of claim 1, characterized in that: the object plane of the fourth lens is a spherical surface, the curvature radius is 48.215mm, and the center thickness of the fourth lens is 2.795 mm; the image plane of the fourth lens is a spherical surface, the curvature radius is 3.76mm, and the distance from the image plane of the fourth lens to the center vertex of the fifth lens is 0.
6. The close-up detection camera lens of an auto-driving vision system of claim 1, characterized in that: the object plane of the fifth lens is a spherical surface, the curvature radius is 3.05mm, and the center thickness of the fifth lens is 2.795 mm; the image plane of the fifth lens is a spherical surface, the curvature radius is 9.996mm, and the distance from the central vertex of the image plane of the fifth lens to the central vertex of the sixth lens is 0.1 mm.
7. The close-up detection camera lens of an auto-driving vision system of claim 1, characterized in that: the object plane of the sixth lens is a spherical surface, the curvature radius is 17.334mm, and the center thickness of the sixth lens is 2.806 mm; the image plane of the sixth lens is a spherical surface, the curvature radius is 11.245mm, and the distance from the central vertex of the image plane of the sixth lens to the central vertex of the seventh lens is 0.203 mm.
8. The close-up detection camera lens of an auto-driving vision system of claim 1, characterized in that: the object plane of the seventh lens is a spherical surface, the curvature radius is 20.693mm, and the center thickness of the seventh lens is 1.479 mm; the image plane of the seventh lens is a plane, and the distance from the image plane of the seventh lens to the center vertex of the eighth lens is 2.447 mm.
9. The close-up detection camera lens of an auto-driving vision system of claim 1, characterized in that: the object plane of the eighth lens is a spherical surface, the curvature radius is 9.082mm, and the center thickness of the eighth lens is 0.47 mm; the image plane of the eighth lens is a spherical surface, the curvature radius is 160.665mm, and the distance from the central vertex of the image plane of the eighth lens to the central vertex of the ninth lens is 0.5 mm.
10. The close-up detection camera lens of an auto-driving vision system of claim 1, characterized in that: the ninth lens is a chip protection glass object surface, the object surface is a plane, the image surface of the ninth lens is a plane, and the thickness of the ninth lens is 0.5000 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022176334.8U CN213715585U (en) | 2020-09-28 | 2020-09-28 | Short-distance detection camera lens of automatic driving vision system |
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| CN202022176334.8U CN213715585U (en) | 2020-09-28 | 2020-09-28 | Short-distance detection camera lens of automatic driving vision system |
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| CN213715585U true CN213715585U (en) | 2021-07-16 |
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| CN202022176334.8U Active CN213715585U (en) | 2020-09-28 | 2020-09-28 | Short-distance detection camera lens of automatic driving vision system |
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