CN220526083U - ADAS camera lens with heating function - Google Patents
ADAS camera lens with heating function Download PDFInfo
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- CN220526083U CN220526083U CN202321550745.6U CN202321550745U CN220526083U CN 220526083 U CN220526083 U CN 220526083U CN 202321550745 U CN202321550745 U CN 202321550745U CN 220526083 U CN220526083 U CN 220526083U
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- lens
- ring
- adas
- image surface
- annular
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 67
- 102100034112 Alkyldihydroxyacetonephosphate synthase, peroxisomal Human genes 0.000 title claims abstract 12
- 101000799143 Homo sapiens Alkyldihydroxyacetonephosphate synthase, peroxisomal Proteins 0.000 title claims abstract 12
- 238000000848 angular dependent Auger electron spectroscopy Methods 0.000 title claims abstract 12
- 230000003287 optical effect Effects 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims description 9
- 239000000565 sealant Substances 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- 229920001774 Perfluoroether Polymers 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- UJMWVICAENGCRF-UHFFFAOYSA-N oxygen difluoride Chemical compound FOF UJMWVICAENGCRF-UHFFFAOYSA-N 0.000 claims description 3
- 238000010257 thawing Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 238000003384 imaging method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Lens Barrels (AREA)
Abstract
The utility model discloses an ADAS lens with a heating function, which comprises a first lens, an optical lens, a heating element and a lens barrel, wherein the first lens is arranged at the front end of the lens barrel, the heating element is arranged in the lens barrel, the heating element comprises a wire and an annular heating plate, the annular heating plate is arranged in the lens barrel in a circumferential direction and is close to the bottom of the first lens, and the annular heating plate is connected with a power supply through the wire. According to the ADAS lens, the heating element is arranged in the lens barrel, so that defogging, defrosting and deicing can be well performed in an extreme environment, and a clear image can be captured in real time.
Description
Technical Field
The utility model relates to the field of ADAS lenses. More particularly, the present utility model relates to an ADAS lens having a heating function.
Background
In recent years, with the development of active safety technology in the automotive industry, on-board lenses have been rapidly developed, and the use of on-board lenses has been advanced from providing in-car environment monitoring to Advanced Driving Assistance Systems (ADAS). In the environment where the vehicle-mounted lens is severely exposed for a long time, fog, frosting and icing are easy to generate on the surface of the lens, so that the safe use of the lens is seriously affected, and the observation of drivers and passengers is not facilitated. Therefore, it is necessary to develop a lens suitable for use in various severe environments and capable of achieving good anti-fog, anti-frost and anti-icing effects.
Disclosure of Invention
To achieve these objects and other advantages and in accordance with the purpose of the utility model, as embodied and broadly described herein, a preferred embodiment of the present utility model provides an ADAS lens having a heating function, including a first lens mounted at a front end of the lens barrel, an optical lens, a heating element mounted in the lens barrel, the heating element including a wire and an annular heating plate mounted in the lens barrel in a circumferential direction and adjacent to a bottom of the first lens, the annular heating plate being connected to a power source through the wire.
Preferably, the annular heating plate is an annular PI heating plate.
Preferably, a waterproof ring is arranged on the outer part of the annular heating plate in a surrounding manner, two annular grooves are formed in the front end step of the lens cone, the annular heating plate and the waterproof ring are respectively arranged, and the waterproof ring is tightly attached to the inner wall of the lens cone.
Preferably, the bottom of the annular heating plate is provided with a heat insulation ring.
Preferably, the optical lens includes a plurality of lenses, specifically, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, the seventh lens and the eighth lens, which are coaxially distributed in order from the object side to the image side;
the object plane of the first lens is a convex surface, and the image plane is a concave surface;
the second lens is positioned on the image surface side of the first lens, the object plane of the second lens is a concave surface, and the image surface is also a concave surface;
the third lens is positioned on the image surface side of the second lens, the object surface of the third lens is a convex surface, and the image surface is also a convex surface;
the fourth lens is positioned on the image surface side of the diaphragm, the object surface of the fourth lens is a convex surface, and the image surface is a convex surface;
the fifth lens is positioned on the image surface side of the fourth lens, the object plane of the fifth lens is a concave surface, and the image surface is a convex surface;
the sixth lens is positioned on the image surface side of the fifth lens, the object plane of the sixth lens is a convex surface, and the image surface is also a convex surface;
the seventh lens is positioned on the image surface side of the sixth lens, the object plane of the seventh lens is a concave surface, and the image surface is also a concave surface;
the eighth lens is located at the image surface side of the seventh lens, the object plane of the eighth lens is a convex surface, and the image surface is a concave surface.
Preferably, a plurality of space rings are arranged on the inner wall of the lens barrel at intervals, and one space ring is arranged between two adjacent lenses.
Preferably, the first lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens are all glass lenses, and the second lens and the eighth lens are molded material lenses.
Preferably, the outer side of the front end of the lens barrel is in threaded connection with an annular front pressure ring, a space between the front pressure ring and the first lens is filled with sealant, and a threaded connection part of the front pressure ring and the lens barrel is filled with sealant; and the tail end of the lens cone is connected with the rear compression ring through internal threads.
Preferably, the lens cone, the front pressing ring and the rear pressing ring are all made of metal materials, the spacing ring is a brass ring, and the waterproof ring is a perfluoroether rubber ring.
Preferably, the surface of the heat insulation ring is provided with two symmetrical threading holes and a convex point.
The utility model at least comprises the following beneficial effects: according to the ADAS lens, the heating element is arranged in the lens barrel, so that defogging, defrosting and deicing can be well performed in an extreme environment, and a clear image can be captured in real time.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
Fig. 1 is a schematic structural diagram of an ADAS lens according to an embodiment of the present utility model.
Fig. 2 is a schematic cross-sectional view of an ADAS lens according to an embodiment of the utility model.
Fig. 3 is a schematic diagram of an optical system and an optical path of an ADAS lens according to an embodiment of the utility model.
Fig. 4 is a graph showing a modulation transfer function characteristic of an ADAS lens at a temperature of-40 ℃ in an embodiment of the utility model.
Fig. 5 is a graph showing a modulation transfer function characteristic of an ADAS lens at a temperature of +25℃.
Fig. 6 is a graph showing a modulation transfer function characteristic of an ADAS lens at a temperature of +105℃.
Fig. 7 is a graph showing a modulation transfer function characteristic of an ADAS lens at a temperature of +115℃.
Detailed Description
The present utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the utility model by referring to the description.
The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.
It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.
As shown in fig. 1 to 7, the ADAS lens with heating function of the present utility model includes a first lens L1, an optical lens, a heating element 30 and a lens barrel 50, wherein the first lens L1 is mounted at the front end of the lens barrel 50, the heating element 30 is mounted in the lens barrel 50, the heating element 30 includes a wire 32 and an annular heating plate 31, the annular heating plate 31 is mounted in the lens barrel 50 in a circumferential direction and is close to the bottom of the first lens L1, and the annular heating plate 31 is connected to a power supply through the wire 32. Specifically, the lead 32 passes through the barrel internal through hole 51 to the power terminal at the bottom end.
In the above technical scheme, the power supply and the anode and cathode of the annular heating plate 31 are respectively connected through the lead 32 to heat the first lens L1, thereby realizing lens heating and achieving the effects of defogging, defrosting and deicing. And all parts are high temperature resistant materials, so that clear imaging effect can be kept within the temperature range of-40 ℃ to +115 ℃, and the requirements of different environments can be met. And the heating element is embedded in the lens barrel 50, so that the heating element is not influenced by the outside, and the service life of the equipment is prolonged.
In one of the technical schemes, the annular heating plate 31 is an annular PI heating plate, which is light, fast in heat conduction, does not occupy space, and has good fitting degree.
In one of the technical schemes, the waterproof ring 20 is arranged outside the annular heating plate 31 in a ring manner, two annular grooves are formed in the front end step of the lens cone 50 and are respectively used for placing the annular heating plate 31 and the waterproof ring 20, the waterproof ring is tightly attached to the inner wall of the lens cone 50, the waterproof ring 20 is used for playing a waterproof protection role on the annular heating plate 31, and the grooves are used for fixing and limiting the annular heating plate and the waterproof ring, so that the positions of the annular heating plate and the waterproof ring are more fastened.
In one embodiment, the bottom of the annular heating plate 31 is provided with a heat insulation ring 40. The annular heating plate 31 is located at the bottom of the first lens L1, that is, the annular heating plate 31 is located between the heat insulation ring 40 and the first lens L1, so that the light passing of the imaging of the lens is not affected, and the annular heating plate 31 is located in the middle, so that the heat insulation ring 40 below has good heat insulation, and the annular heating plate has good heat conduction to the first lens L1 above, so that the good heating effect is ensured, and meanwhile, the structure inside the lens barrel is not affected.
In one technical scheme, the optical lens comprises a plurality of lenses, and specifically comprises a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a seventh lens L7 and an eighth lens L8 which are coaxially distributed in sequence from an object side to an image side; the object plane of the first lens L1 is a convex surface, and the image plane is a concave surface; the second lens L2 is located at the image surface side of the first lens L1, and the opposite surface of the second lens L2 is a concave surface, and the image surface is also a concave surface; the third lens L3 is located at the image surface side of the second lens L2, and the object plane of the third lens L3 is a convex surface, and the image surface is also a convex surface; the fourth lens L4 is positioned on the image surface side of the diaphragm, the object plane of the fourth lens L4 is a convex surface, and the image surface is a convex surface; the fifth lens L5 is located at the image surface side of the fourth lens L4, and the object plane of the fifth lens L5 is a concave surface and the image surface is a convex surface; the sixth lens L6 is located on the image surface side of the fifth lens L5, and the object plane of the sixth lens L6 is a convex surface, and the image surface is also a convex surface; the seventh lens L7 is located on the image surface side of the sixth lens L6, and the object plane of the seventh lens L7 is a concave surface, and the image surface is also a concave surface; the eighth lens L8 is located on the image surface side of the seventh lens L7, and the object plane of the eighth lens L8 is a convex surface, and the image surface is a concave surface. The imaging plane L9 is located on the image plane side of the eighth lens L8.
In one of the technical schemes, a plurality of spacers 80 are arranged on the inner wall of the lens barrel 50 at intervals, one spacer 80 is arranged between two adjacent lenses, the two adjacent lenses are fixedly clamped by the spacers 80, and the lens is fixed on the basis of ensuring the distance between the lenses.
In one embodiment, the first lens L1, the third lens L3, the fourth lens L4, the fifth lens L5, the sixth lens L6, and the seventh lens L7 are all glass lenses, and the second lens L2 and the eighth lens L8 are molded material lenses.
In one technical scheme, the outer side of the front end of the lens cone 50 is in threaded connection with an annular front pressure ring 60, the front pressure ring 60 clamps the lens in the lens cone 50, the front pressure ring 60 is annular, the cross section of the front pressure ring is L-shaped, the horizontal section of the front pressure ring is pressed on a first lens L1, the inner wall of the vertical section of the front pressure ring is provided with internal threads, so that the threads are sleeved at the front end of the lens cone 50, the space between the front pressure ring 60 and the first lens is filled with sealant, the space between the front pressure ring 60 and the first lens is in threaded connection, and meanwhile, the interior of the lens cone is further sealed by the sealant, and the joint between the front pressure ring 60 and the threads of the lens cone 50 is filled with sealant; the rear end of the lens barrel 50 is connected with a rear compression ring 90 through internal threads, so as to limit the eighth lens L8 in the lens barrel 50.
In one technical scheme, the lens cone, the front pressing ring and the rear pressing ring are all made of metal materials, the spacing ring 80 is a brass ring, the waterproof ring 20 is a perfluoroether rubber ring and is made of high-temperature resistant materials, so that a clear imaging effect can be kept within a temperature range of-40 ℃ to +115 ℃, and the requirements of different environments can be met.
In one embodiment, the surface of the heat insulation ring 40 has two symmetrical threading holes 42, the purpose of the threading holes 42 is to facilitate the wires 32 in the heating element 30 to pass through, and the surface of the heat insulation ring 40 has protruding points 41 for facilitating installation and adapting to the protruding points.
Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (9)
1. The ADAS lens with the heating function is characterized by comprising a first lens, an optical lens, a heating element and a lens barrel, wherein the first lens is arranged at the front end of the lens barrel, the heating element is arranged in the lens barrel, the heating element comprises a wire and an annular heating plate, the annular heating plate is annularly arranged in the lens barrel and is close to the bottom of the first lens, and the annular heating plate is connected with a power supply through the wire;
the optical lens comprises a plurality of lenses, and specifically comprises a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens which are coaxially distributed from an object side to an image side in sequence;
the object plane of the first lens is a convex surface, and the image plane is a concave surface;
the second lens is positioned on the image surface side of the first lens, the object plane of the second lens is a concave surface, and the image surface is also a concave surface;
the third lens is positioned on the image surface side of the second lens, the object surface of the third lens is a convex surface, and the image surface is also a convex surface;
the fourth lens is positioned on the image surface side of the third lens, the object plane of the fourth lens is a convex surface, and the image surface is a convex surface;
the fifth lens is positioned on the image surface side of the fourth lens, the object plane of the fifth lens is a concave surface, and the image surface is a convex surface;
the sixth lens is positioned on the image surface side of the fifth lens, the object plane of the sixth lens is a convex surface, and the image surface is also a convex surface;
the seventh lens is positioned on the image surface side of the sixth lens, the object plane of the seventh lens is a concave surface, and the image surface is also a concave surface;
the eighth lens is located at the image surface side of the seventh lens, the object plane of the eighth lens is a convex surface, and the image surface is a concave surface.
2. The ADAS lens with heating function of claim 1, wherein the annular heating plate is an annular PI heating plate.
3. The ADAS lens with heating function according to claim 1, wherein a waterproof ring is arranged on the outer part of the annular heating plate, and two annular grooves are arranged in the front end step of the lens barrel and are respectively used for placing the annular heating plate and the waterproof ring, and the waterproof ring is tightly attached to the inner wall of the lens barrel.
4. The ADAS lens with heating function according to claim 3, wherein a heat insulating ring is arranged at the bottom of the annular heating plate.
5. The ADAS lens with heating function according to claim 3, wherein a plurality of spacers are provided on the inner wall of the lens barrel at intervals, and one spacer is provided between two adjacent lenses.
6. The ADAS lens with heating function according to claim 1, wherein the first lens, the third lens, the fourth lens, the fifth lens, the sixth lens, and the seventh lens are all glass lenses, and the second lens and the eighth lens are molded material lenses.
7. The ADAS lens with heating function according to claim 5, wherein the front outer side of the lens barrel is in threaded connection with an annular front press ring, a space between the front press ring and the first lens is filled with sealant, and a threaded connection part of the front press ring and the lens barrel is filled with sealant; and the tail end of the lens cone is connected with the rear compression ring through internal threads.
8. The ADAS lens with heating function according to claim 7, wherein the lens barrel, the front pressing ring, and the rear pressing ring are all made of metal materials, the spacer is a brass ring, and the waterproof ring is a perfluoroether rubber ring.
9. The ADAS lens with heating function according to claim 4, wherein the surface of the heat insulation ring is provided with two symmetrical threading holes and one salient point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321550745.6U CN220526083U (en) | 2023-06-19 | 2023-06-19 | ADAS camera lens with heating function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321550745.6U CN220526083U (en) | 2023-06-19 | 2023-06-19 | ADAS camera lens with heating function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220526083U true CN220526083U (en) | 2024-02-23 |
Family
ID=89927779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321550745.6U Active CN220526083U (en) | 2023-06-19 | 2023-06-19 | ADAS camera lens with heating function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220526083U (en) |
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2023
- 2023-06-19 CN CN202321550745.6U patent/CN220526083U/en active Active
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