CN111679536A - Lens and manufacturing method thereof - Google Patents
Lens and manufacturing method thereof Download PDFInfo
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- CN111679536A CN111679536A CN201910179116.9A CN201910179116A CN111679536A CN 111679536 A CN111679536 A CN 111679536A CN 201910179116 A CN201910179116 A CN 201910179116A CN 111679536 A CN111679536 A CN 111679536A
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- lens
- heating element
- lens barrel
- side wall
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/55—Details of cameras or camera bodies; Accessories therefor with provision for heating or cooling, e.g. in aircraft
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Abstract
A lens includes a lens barrel, at least one lens and a heating device, wherein the periphery of the at least one lens is fixed on the side wall of the lens barrel, wherein the heating device transfers heat to the lens through direct contact, indirect contact or heat radiation to accelerate evaporation or disperse moisture attached to the inner surface of the lens.
Description
Technical Field
The invention relates to the field of optics, in particular to a lens and a manufacturing method thereof.
Background
A lens, such as a vehicle-mounted lens, a photographic lens, a radar lens, or a laser lens, wherein the lens generally includes at least one lens, and the lens may be classified into a glass lens, a resin lens, or a PC lens according to different materials. As is well known, when the temperature difference between the inside and the outside of the environment where the lens is located is large, moisture such as fog or frost is generated on the inner surface of the lens, which affects the transparency of the lens, and results in unclear imaging of the lens.
For example, an onboard lens, such as a front camera lens, a back camera lens or a camera lens of a driving recorder in a vehicle, is generally installed on the outer side of the vehicle and captures information such as images toward the environment around the vehicle, so that the onboard lens can acquire the images of the environment around the vehicle.
The vehicle-mounted lens generally has a plurality of lenses arranged axially, and when the vehicle runs in a high-temperature environment, a low-temperature environment, a fog day, a rainy day, a snowy day, or the like, a first lens on the object side of the vehicle-mounted lens is more susceptible to fog, frost, water drops, or the like on the inner surface due to a larger environmental temperature difference. For example, in a high or low temperature environment, the inner surface of the first lens may generate fog or water droplets formed by the fog. In a rain and snow environment, frost, even ice and the like can be generated on the inner surface of the first lens, so that the photographic picture of the vehicle-mounted lens is blurred directly, even a blind area is generated in imaging, the judgment and processing result is delayed, and the driving safety is influenced.
In the driving process, because the mounting position of the vehicle-mounted lens is positioned at the outer side of the vehicle, a user cannot manually clean moisture such as fog, frost, water drops or ice generated on the surface of the vehicle-mounted lens in time, and therefore the driving safety hidden trouble is brought to the user. Furthermore, because the moisture attached to the inner surface of the first lens of the lens is difficult to erase artificially, the moisture attached to the inner surface of the first lens is difficult to dissipate in time only by natural evaporation, which brings great driving trouble to users and has potential safety hazard.
In the prior art, in order to accelerate evaporation of moisture on the inner surface of the first lens of the lens, the lens further includes a heating wire, wherein the heating wire is embedded inside the first lens, wherein the heating wire is used for being externally connected with a power supply, so that the heating wire generates heat energy and directly transmits the heat energy to the first lens, and thus the temperature of the first lens is raised, and the evaporation of the moisture attached to the inner surface of the first lens is accelerated. However, since the heating wire needs to be embedded into the first lens to be fixed, the original structure of the first lens is changed, the manufacturing process difficulty is high, the cost is high, and the strength of the first lens is damaged, so that the first lens is easy to crack after being heated, the imaging quality is poor, the maintenance is impossible, and the yield is low.
Therefore, in order to ensure the reliability of the imaging function and eliminate potential safety hazards, it is necessary to provide a vehicle-mounted lens capable of actively defrosting, defogging and the like.
Disclosure of Invention
An object of the present invention is to provide a lens and a method for manufacturing the same, wherein the lens can actively accelerate evaporation or disperse water on a lens surface without manual erasing, and has real-time performance, thereby ensuring reliability of imaging performance of the lens and providing a reliable acquisition basis for subsequent image processing.
Another object of the present invention is to provide a lens barrel capable of accelerating evaporation or dispersion of moisture such as fog, frost, water drops, or ice on the surface of the lens, and a method of manufacturing the same.
Another object of the present invention is to provide a lens barrel and a method for manufacturing the same, in which the lens barrel can maintain the temperature difference between both sides of the lens within a certain range in real time to prevent condensation of water mist and the like and to prevent the influence of unclear or blind areas on image formation.
Another object of the present invention is to provide a lens and a method for manufacturing the same, in which the lens transfers heat to the lens through direct contact or indirect contact to accelerate evaporation of water, so that the original structure of the lens is not changed, the strength of the lens is guaranteed, the manufacturing cost is reduced, and the yield is improved.
Another object of the present invention is to provide a lens barrel capable of accelerating evaporation or dispersion of moisture on the surface of the lens by non-contact heating such as heat radiation, and a method of manufacturing the same.
Another objective of the present invention is to provide a lens and a manufacturing method thereof, which can thermally fuse a heating element to the lens, thereby increasing the heat conduction efficiency, improving the fixing effect, and increasing the yield.
Another object of the present invention is to provide a lens barrel and a method for manufacturing the same, which can reduce the process cost by fixing the heating element to the lens by adhesion or by keeping the heating element fixed to the lens by using a fixing element.
Another object of the present invention is to provide a lens barrel and a method for manufacturing the same, which are easily disassembled and assembled, and easily repaired or replaced with a part of elements, etc.
According to an aspect of the present invention, the present invention further provides a lens barrel, comprising:
the lens barrel is provided with a side wall, wherein the side wall is provided with a mounting cavity;
at least one lens, wherein the periphery of the lens is mounted on the side wall of the lens barrel and extends to the mounting cavity; and
a heating device, wherein the heating device comprises at least one heating element and at least one conductive element, wherein the heating element is disposed in the mounting cavity and is located outside the periphery of the at least one lens in a manner of transferring heat to the lens, and one end of the conductive element is electrically connected to the heating element and the other end is used for externally connecting a power supply unit to enable the heating element to generate heat so as to accelerate evaporation of moisture attached to the surface of the lens.
In some embodiments, wherein the heating element is secured to the peripheral edge of the lens in a contact heat transfer manner.
In some embodiments, wherein the heating element is heat-staked to the peripheral edge of the lens.
In some embodiments, wherein the heating element is maintained at a thermal radiation distance from the lens to transfer heat to the lens by way of thermal radiation.
In some embodiments, wherein the heating element is abutted against the peripheral edge of the lens.
In some embodiments, the lens further comprises a fixing element, wherein the fixing element is configured to be held in a position where the heating element abuts against the periphery of the lens.
In some embodiments, the fixing element is implemented as a resilient element, wherein the fixing element is placed between the heating element and the inner wall of the installation cavity and the fixing element is compressed when between the heating element and the inner wall of the installation cavity.
In some embodiments, wherein the securing element is implemented as a conductive double-sided tape, wherein the conductive double-sided tape is adhered between the lens and the heating element.
In some embodiments, the side wall further has at least one wire cavity, wherein the wire cavity extends downward from the mounting cavity, wherein the conductive element extends from the heating element of the mounting cavity along the wire cavity to the bottom side of the side wall.
In some embodiments, the side surface of the side wall has at least one wire channel, wherein two ends of the wire channel are respectively communicated with the mounting cavity and the outer side of the side wall, and the conductive element extends from the heating element in the mounting cavity to the outer side of the side wall along the wire channel.
In some embodiments, a heat shielding space is formed between the heating element and the sidewall to reduce the amount of heat transferred from the heating element to the sidewall.
In some embodiments, wherein the heating element is implemented as a type of annular structure.
In some embodiments, wherein the heating element is implemented as an unsealed ring-shaped structure.
In some embodiments, wherein the number of heating elements is implemented as any one selected from a group 1, 2, 3, and 4.
In some embodiments, wherein the number of heating elements is at least 1.
According to another aspect of the present invention, the present invention further provides a method for manufacturing a lens barrel, comprising the steps of:
A. installing a periphery of at least one lens on one side wall of a lens barrel;
B. relatively fixing a heating element outside the periphery of the lens in a manner that heat can be transferred to the at least one lens; and
C. and extending a conductive element on the heating element for an external power supply unit to enable the heating element to generate heat so as to accelerate evaporation of moisture attached to the surface of the lens.
In some embodiments, wherein step B comprises the steps of:
b11, extending the heating element to the periphery of the at least one lens; and
and B12, hot-melting and molding the heating element on the periphery of the at least one lens.
In some embodiments, wherein step B comprises the steps of:
b21, contacting the heating element on the periphery of the at least one lens; and
b22, forming a spring force against the heating element on the periphery of the at least one lens.
In some embodiments, wherein step B comprises the steps of:
b31, forming a conductive adhesive surface on the periphery of the at least one lens; and
and B32, attaching the heating element to the conductive bonding surface.
In some embodiments, wherein step B comprises the steps of:
b41, forming a thermal radiation distance between the heating element and the at least one lens; and
and B42, fixing the heating element on the side wall.
In some embodiments, wherein step C comprises the steps of:
c11, forming a lead wire cavity on the side wall;
c12, communicating the wire cavity to the underside of the side wall and the heating element; and
c13, extending a conductive element from the heating element along the wire cavity to the underside of the sidewall.
In some embodiments, wherein step C comprises the steps of:
c21, forming a conductive wire channel on the sidewall;
c22, communicating the wire channel with the outside of the side wall and the heating element; and
c23, extending a conductive element from the heating element along the wire path to the outside of the side wall.
Drawings
Fig. 1 is a schematic sectional view of a lens barrel according to a preferred embodiment of the present invention.
Fig. 2 is a schematic cross-sectional view of a lens having a module according to the above preferred embodiment of the present invention.
Fig. 3 is a schematic sectional view of a heating device according to a first variation of the lens barrel according to the above preferred embodiment of the present invention.
Fig. 4A is a schematic structural diagram of a heating element and a lens of the lens barrel according to the above preferred embodiment of the invention.
Fig. 4B is a schematic structural diagram of two heating elements and a lens of the lens barrel according to the above preferred embodiment of the invention.
Fig. 4C is a schematic structural diagram of four heating elements and lenses of the lens barrel according to the above preferred embodiment of the invention.
Fig. 5A is an enlarged schematic view of a portion a of the lens barrel according to the above preferred embodiment of the present invention.
Fig. 5B is an enlarged schematic view of a portion a of an alternative implementation of the lens barrel according to the above preferred embodiment of the invention.
Fig. 6 is an enlarged schematic view of a portion a of a second variation of the lens barrel according to the above preferred embodiment of the present invention.
Fig. 7 is a schematic sectional view of a lens barrel according to a second preferred embodiment of the present invention.
Fig. 8 is an enlarged schematic view of a portion B of the lens barrel according to the above-described second preferred embodiment of the present invention.
Fig. 9 is a schematic structural diagram of the lens and the heating element of the lens barrel according to the second preferred embodiment of the present invention.
Fig. 10 is a schematic sectional view of a lens barrel according to a third preferred embodiment of the present invention.
Fig. 11 is an enlarged schematic view of a portion C of the lens barrel according to the above-described third preferred embodiment of the present invention.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as 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 invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and thus the above terms are not to be construed as limiting the present invention.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Fig. 1 to 6 show a lens 100 according to a preferred embodiment of the present invention, wherein the lens 100 includes a lens barrel 10, at least one lens 20 and a heating device 30, wherein the at least one lens 20 is mounted on the lens barrel 10, and the heating device 30 is used for heating the lens 20 to increase the temperature of the at least one lens 20, so as to accelerate evaporation or disperse moisture such as fog, frost, water drops or ice attached to the inner surface of the at least one lens 20. Meanwhile, the heating device 30 can prevent the inner surface of the at least one lens 20 from condensing the moisture or avoid condensation of water mist and the like by heating the at least one lens 20, so as to prevent the influence of unclear or blind areas and the like on the imaging, thereby ensuring the reliability of the imaging performance of the lens 20 and providing a reliable acquisition basis for subsequent image processing.
Further, as shown in fig. 1, the heating device 30 comprises at least one heating element 31, at least one conductive element 32 and an energy supply unit 33, wherein the lens 100 further comprises a fixing element 40, wherein the fixing element 40 is disposed and held at a position where the heating element 31 directly or indirectly contacts the at least one lens 20. The power unit 33 is electrically connected to the heating element 31 through the conductive element 32, wherein the power unit 33 is capable of providing a certain amount of electrical energy, wherein the heating element 31 receives the electrical energy to generate a certain amount of heat, wherein the heat is directly or indirectly diffused to the at least one lens 20, thereby increasing the temperature of the at least one lens 20 to accelerate evaporation or dissipation of moisture attached to the inner surface of the at least one lens 20.
The preferred embodiment further provides a method for manufacturing the lens 100, which includes the following steps:
s1, mounting the periphery of the at least one lens 20 on the sidewall of the lens barrel 10; and
s2, fixing the heating element 31 relatively outside the periphery 210 of the at least one lens 20 in a manner that can transfer heat to the at least one lens 20.
Preferably, the lens barrel 100 is implemented as an onboard lens barrel, wherein the lens barrel 100 is generally mounted on a vehicle, wherein the lens barrel 100 includes a plurality of lenses 20, wherein the plurality of lenses 20 are sequentially mounted axially side by side in a lens cavity 101 of the lens barrel 10, wherein the at least one lens 20 includes a first lens 21 on an object side (outermost side) of the lens cavity 101. In the driving process of the vehicle, under the influence of an external environment, such as a high temperature environment, a low temperature environment, a rain and snow environment, the inner surface of the first lens 21 on the object side of the lens 100 is most likely to agglomerate the moisture, and the inner surfaces of the other lenses 20 are less likely to agglomerate the moisture on the surfaces under the influence of the environment. Therefore, in the present invention, it is preferable that the heating element 31 is directly or indirectly contacted with the first lens 21, wherein the fixing element 40 is used for fixing and holding the heating element 31 at a position of being attached to the first lens 21. The power supply unit 33 supplies power to the heating element 31, wherein the heating element 31 generates heat to act on the first lens 21, so that the temperature of the first lens 21 is increased, thereby accelerating evaporation or dispersing moisture on the inner surface of the first lens 21, and preventing moisture from condensing on the inner surface of the first lens 21, thereby ensuring the reliability of the imaging performance of the entire lens 200. It should be understood by those skilled in the art that the heating element 31 may be selectively heated for other lenses of the at least one lens 20 to adapt to different usage environments, and is not limited herein.
Therefore, during the driving of the vehicle, the user can actively raise the temperature of the first lens 21 by the heating element 31 only by controlling the switch of the power supply unit 33 in real time, so as to actively remove the moisture attached to the inner surface of the first lens 21, or avoid the condensation of water mist.
Further, as shown in fig. 2, the lens barrel 100 further includes a module 50, wherein the module 50 is formed on a bottom side of the lens barrel 10, wherein the module 50 is sealed on the bottom side (i.e. image side) of the lens cavity 101, and wherein the module 50 is configured to receive the external light passing through the at least one lens 20 and form an image. Generally, the module 50 includes a PCB board, and a photo chip and at least one electronic component mounted on the PCB board, wherein the lens barrel 10 is molded or adhesively fixed to the module 50, which is not limited herein.
Specifically, the lens barrel 10 has a side wall 11, wherein the first lens 21 has a periphery 210, wherein the periphery 210 of the first lens 21 is positioned and mounted on the side wall 11 of the lens barrel 10, wherein the side wall 11 has a mounting cavity 111, wherein the periphery 210 of the first lens 21 is extended into the mounting cavity 111, and wherein the heating element 31 is held in the mounting cavity 111 and is in direct or indirect contact with the periphery 210 of the first lens 21. Generally, the side wall 11 of the lens barrel 10 is a cylinder or a square cylinder, wherein the side wall 11 encloses the lens cavity 101, and the mounting cavity 111 of the side wall 11 communicates with the lens cavity 101 so that the peripheral edge 210 of the first lens 21 is extended to the mounting cavity 111 and is supported and fixed on the side wall 11. In the preferred embodiment, the peripheral edge 210 of the first lens 21 is defined as a portion of the first lens 21 mounted in the mounting cavity 111 of the sidewall 11, i.e. the peripheral edge 210 is not exposed to the lens cavity 101 of the lens barrel 10.
In other words, the fixing element 40 fixes and holds the heating element 31 in the mounting cavity 111 at a position in close contact with the peripheral edge 210 of the first lens 21. That is, the mounting cavity 111 of the sidewall 11 reserves a mounting space for the fixing element 40 and the heating element 31, and the periphery 210 of the first lens 21 is directly or indirectly in contact with the heating element 31 in the mounting cavity 111. Alternatively, the heating element 31 is attached to and contacts the peripheral edge 210 of the first lens 21 in the mounting cavity 111, wherein the fixing element 40 is fixed at a position where the heating element 31 and the first lens 21 are kept stationary, so that the heating element 31 does not separate from the first lens 21, and always transmits heat to the first lens 21 in a contact manner. Compared with the conventional lens with a heating wire, the heating element 31 of the lens 100 of the preferred embodiment heats the first lens 21 by abutting against the first lens 21 without damaging the original structure of the first lens 21. Meanwhile, the heating element 31, the first lens 21 and the lens barrel 10 can be detached and separated, so that the heating element 31, the first lens 21 or the lens barrel 10 can be repaired or replaced, and the manufacturing cost is reduced, and the yield is improved.
It is worth mentioning that the heat generated by the heating element 31 is diffused to the peripheral edge 210 of the first lens 21 through direct or indirect contact, wherein the heat is diffused from the peripheral edge 210 of the first lens 21 to the center of the first lens 21. Therefore, the heating element 31 is uniformly extended to the periphery 210 of the first lens 21, so that the heat is uniformly diffused from the periphery 210 of the first lens 21 to the center, the heat diffusion is more uniform, the efficiency of eliminating the moisture on the whole lens surface is improved, and meanwhile, the first lens 21 is prevented from being damaged due to partial heat collection phenomenon. Alternatively, the heating element 31 may be disposed at a peripheral portion of the peripheral edge 210 of the first lens 21, such as four positions, i.e., up, down, left, right, or two positions, etc., which can also achieve the above purpose, and is not limited herein.
Preferably, the side wall 11 further has at least one wire cavity 112, wherein the wire cavity 112 extends from the mounting cavity 111 to a bottom end of the side wall 11, wherein the conductive element 32 extends from the bottom end of the side wall 11 to the heating element 31 in the mounting cavity 111 through the wire cavity 112, and wherein the energy supply unit 33 supplies electric energy to the heating element 31 through the conductive element 32 at an outer side of the lens barrel 10. That is, the conductive member 32 is formed inside the sidewall 11 of the lens barrel 10 and connected to the heating member 31 in the mounting cavity 111 to ensure reliability of power transmission.
In the manufacturing method of the lens 100, the method further includes the steps of:
s3, electrically connecting the conductive element 32 to a power supply unit 33.
Wherein the step S3 includes the steps of:
s31, forming the wire cavity 112 on the sidewall 11;
s32, communicating the wire cavity 112 with the underside of the sidewall 11 and the heating element 31;
s33, extending the conductive element 32 from the underside of the sidewall 11 along the wire cavity 112 to the heating element 31; and
s34, electrically connecting the conductive element 32 to a power supply unit 33.
In order to ensure that the imaging effect of the at least one lens 20 in the lens cavity 101 is not interfered by the reflection of the side light of the side wall 11, the wire cavity 112 is not communicated with the lens cavity 101, so that the light entering the lens cavity 101 cannot enter the wire cavity 112 to be reflected to affect the imaging effect of the lens 100, or the external light enters the lens cavity 101 from the wire cavity 112 to interfere the imaging effect of the lens 100.
Further, the energy supply unit 33 is mounted to the module 50, wherein the energy supply unit 33 is located right at the bottom side of the sidewall 11, such that the wire cavity 112 is located right near the energy supply unit 33 mounted to the module 50, so that the wire 112 is connected to the energy supply unit 33 for manufacturing.
As shown in fig. 3, in a first variant of the preferred embodiment, two side surfaces of the side wall 11 are respectively provided with a wire passage 112A, wherein the wire passage 112A is extended to the mounting cavity 111, wherein the conductive element 32 is extended from the outside to the heating element 31 in the mounting cavity 111 through the wire passage 112A, and wherein a free end of the conductive element 32 is connected to the energy supply unit 33. That is, both ends of the wire passage 112A are respectively communicated with the mounting cavity 111 and the outside of the side wall 11. In other words, the conductive element 32 is led out from the side of the side wall 11 to be externally connected to the power supply unit 33. It can be understood that, in the manner that the conductive element 32 is led out from the side surface of the side wall 11, the lead passage 112A communicating with the mounting cavity 111 is only required to be formed on the upper side wall of the side wall 11, which is convenient for manufacturing and reduces the damage to the strength of the side wall 11.
In the first modified embodiment, since the lens 100 is usually exposed to the external environment of the vehicle during use, the conductive element 32 is led out from the side surface of the sidewall 11 of the lens 100 to the outside, so that the conductive element 32 is exposed to the external environment. In order to prevent the conductive element 32 from being affected by external environments such as rain water or dust, a protective layer 301 is further wrapped on the outer side of the conductive element 32 to protect the conductive element 32 from being damaged, so that the conductivity of the conductive element 32 is ensured and the service life of the conductive element is prolonged. Preferably, the protection layer 301 is made of an insulating material, PVC, or plastic, without limitation. Optionally, the side wall 11 may further have a protection channel extending outside, wherein the protection channel is in sealed communication with the wire channel 112A, wherein the protection channel is extended from the outside of the side wall 11 to the power supply unit 33, wherein the conductive element 32 is extended from the wire channel 112A to the power supply unit 33 through the protection channel, so that the conductive element 32 cannot be exposed to the outside.
In the first modified embodiment, in the method for manufacturing the lens barrel 100, the step S3 is optionally implemented to include the steps of:
S31A, forming the conductive wire passage 112A on the sidewall 11;
S32A, communicating the wire passage 112A to the outside of the side wall 11 and the heating element 31;
S33A, extending the conductive element 32 from the outside of the sidewall 11 along the wire channel 112A to the heating element 31; and
S34A, electrically connecting the conductive element 32 to the power supply unit 33.
Preferably, the heating element 31 is implemented as an electric heating wire, wherein the conductive element 32 is implemented as two conductive materials, such as two metal wires, conductive rubber, etc., wherein the power supply unit 33 is an electric power device, such as a battery or a power supply, etc., wherein the heating element 31 has a certain flexibility, such that the heating element 31 can be wrapped around the circumference 210 of the first lens 21. The two ends of the heating element 31 are respectively connected to the two conductive elements 32, wherein the two conductive elements 32 are respectively connected to the positive electrode and the negative electrode of the energy supply unit 33, so that the heating element 31 converts the electric energy into heat energy and transmits the heat energy to the first lens 21, thereby increasing the temperature of the first lens 21.
It should be understood by those skilled in the art that the heating element 31 may be implemented as a metal conductive wire such as nickel chromium wire (Ni-Cr), iron chromium aluminum wire (Fe-Cr-Al), nickel iron wire (Ni-Fe), etc. Alternatively, the heating element 31 may also be implemented as at least one electric heating block or one electric heating strip, etc., that is, the heating element 31 may be implemented as one, two, or three or more, which is not limited herein.
Alternatively, the conductive element 32 is made of conductive metal, wherein the conductive element 32 can be fixedly connected to the heating element 31 by welding or the like, and the power-on efficiency can be ensured. Alternatively, the conductive element 32 may also be implemented as conductive silver paste or the like, wherein the conductive element 32 can be fixedly connected to the heating element 31 by a fixing method such as conductive paste fixing or the like. Alternatively, the heating element 31 may be implemented as an ITO film or the like having a heat conductive effect, which is not limited herein.
In an alternative embodiment, the heating element 31 can also be implemented as an electrothermal coating layer applied on the peripheral edge 210 of the lens 21, wherein the heating element 31 can be fixed on the surface of the peripheral edge 210 of the lens 21 by brushing, knife coating, spraying, etc., and the heating element 31 generates heat and transmits the heat to the lens 21 after being charged with electricity, thereby achieving the purpose of dissipating moisture.
As shown in fig. 4A, further, the heating element 31 is implemented as a ring-shaped structure, wherein the size of the ring-shaped structure is exactly matched with the size of the periphery 210 of the first lens 21, wherein the heating element 31 can be exactly attached to the periphery 210 in a surrounding manner, wherein the heating element 31 has a gap 311, wherein two ends of the gap 311 of the heating element 31 form a positive and negative port. In order to make the heating element 31 properly connected to the power supply unit 33, when the positive and negative terminals of the heating element 31 are disposed on the same side of the sidewall 11, the conductive element 32 (including the positive and negative leads) may be disposed in the lead passage 112A or the lead cavity 112 on the same side of the sidewall 11. Of course, the positive and negative terminals of the heating element 31 may also be disposed on two sides of the sidewall 11, respectively, wherein the positive and negative leads of the conductive element 32 are disposed in the lead channel 112A or the lead cavity 112 on two sides of the sidewall 11, respectively.
As shown in fig. 4B, the heating element 31 is optionally implemented as two heating wires with arc structures, wherein the two arc structures are respectively abutted against two sides of the peripheral edge 210 of the first lens 21, and the sum of the arcs of the two arc structures is not more than 180 degrees. Preferably, the two arc structures are both semi-circular arc structures, so that the two arc structures are just spliced into the heating element 31 with a ring-shaped structure near to the eye, wherein the two arc structures are correspondingly connected to the conductive channel 112A on the two sides of the sidewall 11 or the conductive element 32 in the wire cavity 112, respectively, so that the two heating elements 31 respectively and independently transfer heat on the two sides of the first lens 21.
It should be noted that the cross-sectional shape of the heating element 31 may be circular, rectangular, trapezoidal, etc., and the shape thereof has no serious influence on the core of the present invention, and may be appropriately modified according to different design requirements.
As shown in fig. 4C, the heating elements 31 are alternatively implemented as four heating wires in an arc structure or a heating sheet in a sheet structure, wherein the four heating elements 31 are respectively abutted against four sides of the peripheral edge 210 of the first lens 21. Accordingly, the side wall 11 forms four wire passages 112A or four wire cavities 112 at positions corresponding to the four heating elements 31, so that the four heating elements 31 are independently connected to the power supply unit 33, respectively.
As shown in fig. 5A, the fixing element 40 is preferably implemented as an elastic element 40A, such as a spring, a spring wire, a spring strip, a sealing ring, or a spring block, etc., wherein the elastic element 40A generates a certain elastic force to keep the heating element 31 in contact with the peripheral edge 210 of the first lens 21. Specifically, the heating element 31 is attached to the lower side of the peripheral edge 210 of the first lens 21, wherein the elastic element 40A is placed between the lower side of the heating element 31 and the inner wall 1111 of the mounting cavity 111 in a compressed state, so that the elastic element 40A generates an upward elastic force by relying on the supporting force of the inner wall 1111 of the mounting cavity 111, wherein the elastic force generated by the elastic element 40A abuts the heating element 31 against the peripheral edge 210 of the first lens 21, thereby keeping the first lens 21 directly in contact with the peripheral edge 210 of the first lens 21.
In the lens barrel manufacturing method, in step S2, the method includes the steps of:
s21, contacting the heating element 31 on the periphery of the at least one lens 20; and
s22, forming a spring force against the heating element 31 on the periphery of the at least one lens 20.
As shown in fig. 5B, optionally, the at least one lens 20 further includes a second lens 22 axially aligned with the first lens 21, wherein a peripheral edge 220 of the second lens 22 is embedded in the sidewall 11 and extends into the mounting cavity 111, wherein the elastic element 40A is disposed between an upper side of the peripheral edge 220 of the second lens 22 and the heating element 31 on a lower side of the first lens 21 in a compressed state, and the heating element 31 is held in direct contact with the peripheral edge 210 of the first lens 21 by an upward elastic force generated by the elastic element 40A.
As shown in fig. 6, in a second variant of the preferred embodiment, the fixing element 40 is implemented as a conductive double-sided adhesive tape 40B, wherein the conductive double-sided adhesive tape 40B is conductively adhered between the peripheral edge 210 of the first lens 21 and the heating element 31, and wherein the conductive element 32 is electrically connected to the conductive double-sided adhesive tape 40B, so that the electric quantity can be transmitted to the heating element 31. In other words, the heating element 31 is indirectly connected to the peripheral edge 210 of the first lens 21 by the conductive double-sided adhesive tape 40B, wherein the conductive double-sided adhesive tape 40B fixedly holds the heating element 31 under the peripheral edge 210 of the first lens 21 by double-sided adhesive force, so that the heating element 31 indirectly transfers heat to the first lens 21 in a contact manner. In other words, the double-sided conductive adhesive tape 40B forms a conductive adhesive surface on the lower surface of the peripheral edge 210 of the first lens 21, wherein the heating element 31 is attached to the conductive adhesive surface. Alternatively, the conductive double-sided tape 40B may be implemented as a conductive silver tape or the like, which is not limited herein.
In the second modified implementation of the present preferred embodiment, in the method for manufacturing a lens barrel, wherein step S2, it is optionally implemented to include the steps of:
S21A, forming the conductive adhesive surface on the periphery of the at least one lens 20; and
and S22A, attaching the heating element 31 to the conductive bonding surface.
In order to reduce the influence of the heat generated by the heating element 31 on the side wall 11, reduce the thermal deformation of the side wall 11, and ensure the imaging performance of the at least one lens 21, a certain thermal insulation space 113 is formed between the heating element 31 and the inner wall 1111 of the mounting cavity 111, so that the heating element 31 is not completely in direct contact with the side wall 11, and thus the heat generated by the heating element 31 cannot be largely directly transferred to the side wall 11. Alternatively, in order to enhance the fixing effect of the heating element 31, a part of the heating element 31 may be contactingly supported on the side wall 11, but the influence on the thermal deformation of the side wall 11 is small.
Fig. 7 to 9 show a lens barrel 100C according to a second preferred embodiment of the present invention, which is different from the lens barrel 100 of the present preferred embodiment, wherein the lens barrel 100C includes a lens barrel 10C, at least one lens 20C and a heating device 30C, wherein the heating device 30C includes a heating element 31C, a conductive element 32C and an energy supply unit 33C, wherein the at least one lens 20C is axially mounted in the lens cavity 101C of the lens barrel 10C in parallel, wherein the heating element 31C is attached to a peripheral edge 210C of a first lens 21C contacting an object side of the at least one lens 20C, wherein the energy supply unit 33C supplies an electric quantity to the heating element 31C through the conductive element 32C, wherein the heating element 31C converts the electric quantity into heat and contacts and transfers the electric quantity to the peripheral edge 210C of the first lens 21C, so as to raise the temperature of the first lens 21C, so as to accelerate evaporation or disperse water on the inner surface of the first lens 21C, and prevent water from condensing on the surface of the first lens 21C.
As shown in fig. 9, further, the heating element 31C is implemented as a metal collar structure, wherein the heating element 31C is heat-fused to the periphery 210C of the first lens 21C. Specifically, the heating element 31C is heated and softened to form the peripheral edge 210C of the first lens 21C, and in the manufacturing process, the heating element 31C is first extended to the peripheral edge 210C of the at least one lens 20C, the heating element 31C is softened by heating, such as high temperature hot melting, and the heating element 31C is cooled to form the heating element 31C on the peripheral edge 210C of the lens 21C. It can be understood that the heating element 31C is deformed by heating and then is overmolded on the peripheral edge 210C of the lens 21C, so that the heating element 31C can be fittingly and snugly fixed to the peripheral edge 210C of the lens 21C, and the stability is higher, and the yield is higher without the need of third party fixing.
It should be noted that a thermal insulation space 113C is disposed between the heating element 31C and the sidewall 11C of the lens barrel 10C, wherein a portion of the peripheral edge 210C of the first lens 21C, which is not in contact with the heating element 31C, is supported by the sidewall 11C to prevent the first lens 21C from shaking.
In order to make the heating element 31C reasonably connected to the conductive element 32C, the heating element 31C has a notch 311C, wherein two ends of the notch 311C form positive and negative terminals for connecting to positive and negative leads of the conductive element 32C.
In the manufacturing method of the lens barrel of the present preferred embodiment, in step S2, it is optionally implemented to include the steps of:
S21B, extending the heating element 31C over the periphery of the at least one lens 20C; and
S22B, hot-melting and molding the heating element 31C on the periphery of the at least one lens.
It is worth mentioning that the heating element 31C can be implemented as an unsealed ring structure, wherein the heating element 31C is heat-melted and formed on the peripheral edge 210C of the first lens 21C without external support, i.e. kept fixed relative to the first lens 21C, thereby ensuring heat transfer by direct contact.
Fig. 10 to 11 show a lens 100D according to a third preferred embodiment of the present invention, which is different from the above embodiments in that the lens 100D includes a lens barrel 10D, at least one lens 20D and a heating device 30D, wherein the heating device 30D includes a heating element 31D, a conductive element 32D and an energy supply unit 33D, wherein the at least one lens 20D is axially mounted in the lens cavity 101D of the lens barrel 10D in parallel, wherein the heating element 31D is disposed on a peripheral edge 210D of a first lens 21D on an object side of the at least one lens 20D by thermally radiating heat, wherein the energy supply unit 33D supplies electric power to the heating element 31D through the conductive element 32D, wherein the heating element 31D converts electric power into heat and thermally radiates heat to the peripheral edge 210D of the first lens 21D, so as to raise the temperature of the first lens 21D, so as to accelerate evaporation or disperse water on the inner surface of the first lens 21D, and prevent water from condensing on the surface of the first lens 21D.
As shown in fig. 11, in the third preferred embodiment, the heating element 31D transfers heat to the first lens 21D of the at least one lens 20D by non-contact thermal radiation. Specifically, the side wall 11D has a mounting cavity 111D, wherein the peripheral edge 210D of the first lens 21D is extended to the mounting cavity 111D, and the heating element 31D is fixed in the mounting cavity 111D of the side wall 11D and maintains a thermal radiation distance D with the first lens 21D, so that the heating element 31D is not in contact with the first lens 21D, and the heating element 31D transfers heat to the first lens 21D only by way of non-contact geothermal radiation, thereby reducing a maximum temperature of partial heat collection of the first lens 21D, reducing a thermal deformation degree of the first lens 21D, and ensuring reliability of imaging performance of the lens 100D.
It is worth mentioning that the thermal radiation distance D can be preset, so that the heating element 31D can realize the heat transfer to the first lens 21D at different thermal radiation distances D, thereby controlling the temperature rise rate of the first lens 21D to adjust the temperature change degree of the first lens 21D, so that the temperature change of the first lens 21D is in a controllable range.
In the manufacturing method of the lens barrel of the present preferred embodiment, in step S2, it is optionally implemented to include the steps of:
s41, forming the thermal radiation distance D between the heating element 31D and the at least one lens 20D; and
s42, fixing the heating element 31D to the sidewall 11D.
Further, the heating element 31D can be made of a metal heat conductive material, wherein the heating element 31D is fixed inside the mounting cavity 111D of the sidewall 11D, and the heating element 31D generates heat after being energized and transmits the heat to the first lens 21D through heat radiation.
Optionally, the heating element 31D may also be fixedly held in the mounting cavity 111D by a fixing element, wherein the fixing element is fixed to the sidewall 11D and makes the distance between the heating element 31D and the first lens 21D equal to the heat radiation distance, wherein the fixing manner of the fixing element and the heating element 31D may be implemented as an adhesive, a snap, a magnetic joint, an elastic fixation, a thermal fusion fixation, or the like, without being limited thereto.
Optionally, the heating element 31D can also be implemented as an electrothermal coating layer, wherein the heating element 31D is coated on the inner side of the mounting cavity 111D of the sidewall 11D, and the heating element 31D generates heat after being energized with electricity and transmits the heat to the first lens 21D through heat radiation.
It is understood that the mounting cavity 111D can be filled with air or other gas that is conducive to transferring thermal radiation, wherein the heating element 31D can transfer thermal radiation to the first lens 21D in the air or gas in the mounting cavity 111D of the sidewall 11D. Of course, the mounting cavity 111D can also be implemented as a sealed vacuum cavity, wherein the heating element 31D can still transfer heat to the first lens 21D in the vacuum in the mounting cavity 111D.
It will be understood by those skilled in the art that the heat radiation area of the heating element 31D or the surface area of the peripheral edge 210D of the first lens 21D directly exposed to the mounting cavity 111D can be appropriately predetermined, so as to improve the heat radiation transmission efficiency of the heating element 31D, without limitation.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (22)
1. A lens barrel, comprising:
the lens barrel is provided with a side wall, wherein the side wall is provided with a mounting cavity;
at least one lens, wherein the periphery of the lens is mounted on the side wall of the lens barrel and extends to the mounting cavity; and
a heating device, wherein the heating device comprises at least one heating element and at least one conductive element, wherein the heating element is disposed in the mounting cavity and is located outside the periphery of the at least one lens in a manner of transferring heat to the lens, and one end of the conductive element is electrically connected to the heating element and the other end is used for externally connecting a power supply unit to enable the heating element to generate heat so as to accelerate evaporation of moisture attached to the surface of the lens.
2. The lens barrel as claimed in claim 1, wherein the heating element is secured to the peripheral edge of the lens in a contact heat transfer manner.
3. The lens barrel according to claim 2, wherein the heating element is heat-fusion molded to the periphery of the lens.
4. The lens barrel as claimed in claim 1, wherein the heating element is maintained at a heat radiation distance from the lens to transfer heat to the lens by way of heat radiation.
5. The lens barrel as claimed in claim 1, wherein the heating element is abutted against the periphery of the lens.
6. The lens barrel as claimed in claim 4, wherein the lens barrel further includes a fixing member, wherein the fixing member is disposed in a position in which the heating member is held at the heat radiation distance from the lens.
7. The lens barrel as claimed in claim 5, wherein the lens barrel further includes a fixing member, wherein the fixing member is configured to be held in a position to abut the heating member against the periphery of the lens.
8. The lens barrel as claimed in claim 7, wherein the fixing member is implemented as an elastic member, wherein the fixing member is interposed between the heating member and an inner wall of the mounting cavity, and the fixing member is compressed while being interposed between the heating member and the inner wall of the mounting cavity.
9. The lens barrel according to claim 7, wherein the fixing element is implemented as a conductive double-sided tape, wherein the conductive double-sided tape is adhered between the lens sheet and the heating element.
10. A lens barrel according to any one of claims 1 to 9, wherein the side wall further has at least one wire cavity, wherein the wire cavity extends downward from the mounting cavity, and wherein the conductive member extends from the heating element of the mounting cavity along the wire cavity to a bottom side of the side wall.
11. The lens barrel as claimed in any one of claims 1 to 9, wherein a side surface of the sidewall has at least one wire passage, wherein both ends of the wire passage communicate with the mounting cavity and an outer side of the sidewall, respectively, and wherein the conductive member extends from the heating element in the mounting cavity to the outer side of the sidewall along the wire passage, respectively.
12. A lens barrel according to claim 10, wherein a heat shielding space is formed between the heating element and the side wall to reduce heat transfer from the heating element to the side wall.
13. The lens barrel according to any one of claims 4 or 5, wherein the heating element is implemented as a ring-like structure.
14. Lens barrel according to claim 13, wherein the heating element is implemented as an unsealed ring-shaped structure.
15. The lens barrel as claimed in claim 13, wherein the number of the heating elements is at least 1.
16. A method for manufacturing a lens, comprising the steps of:
A. installing a periphery of at least one lens on one side wall of a lens barrel;
B. relatively fixing a heating element outside the periphery of the lens in a manner that heat can be transferred to the at least one lens; and
C. and extending a conductive element on the heating element for an external power supply unit to enable the heating element to generate heat so as to accelerate evaporation of moisture attached to the surface of the lens.
17. A method for manufacturing a lens barrel according to claim 16, wherein the step B includes the steps of:
b11, extending the heating element to the periphery of the at least one lens; and
and B12, hot-melting and molding the heating element on the periphery of the at least one lens.
18. A method for manufacturing a lens barrel according to claim 16, wherein the step B includes the steps of:
b21, contacting the heating element on the periphery of the at least one lens; and
b22, forming a spring force against the heating element on the periphery of the at least one lens.
19. A method for manufacturing a lens barrel according to claim 16, wherein the step B includes the steps of:
b31, forming a conductive adhesive surface on the periphery of the at least one lens; and
and B32, attaching the heating element to the conductive bonding surface.
20. A method for manufacturing a lens barrel according to claim 16, wherein the step B includes the steps of:
b41, forming a thermal radiation distance between the heating element and the at least one lens; and
and B42, fixing the heating element on the side wall.
21. A method of manufacturing a lens barrel according to any one of claims 16 to 20, wherein the step C includes the steps of:
c11, forming a lead wire cavity on the side wall;
c12, communicating the wire cavity to the underside of the side wall and the heating element; and
c13, extending a conductive element from the heating element along the wire cavity to the underside of the sidewall.
22. A method of manufacturing a lens barrel according to any one of claims 16 to 20, wherein the step C includes the steps of:
c21, forming a conductive wire channel on the sidewall;
c22, communicating the wire channel with the outside of the side wall and the heating element; and
c23, extending a conductive element from the heating element along the wire path to the outside of the side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910179116.9A CN111679536A (en) | 2019-03-11 | 2019-03-11 | Lens and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910179116.9A CN111679536A (en) | 2019-03-11 | 2019-03-11 | Lens and manufacturing method thereof |
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| CN111679536A true CN111679536A (en) | 2020-09-18 |
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| CN201910179116.9A Pending CN111679536A (en) | 2019-03-11 | 2019-03-11 | Lens and manufacturing method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983766A (en) * | 2019-12-31 | 2020-11-24 | 江西联创电子有限公司 | Optical lens and imaging module |
| CN113114892A (en) * | 2021-04-10 | 2021-07-13 | 深圳市豪恩汽车电子装备股份有限公司 | Defogging camera |
| CN113126395A (en) * | 2021-04-08 | 2021-07-16 | 深圳市豪恩汽车电子装备股份有限公司 | Defogging lens |
| WO2022120754A1 (en) * | 2020-12-10 | 2022-06-16 | 欧菲光集团股份有限公司 | Lens barrel assembly, lens, photographing module, and electronic device |
| WO2022193091A1 (en) * | 2021-03-15 | 2022-09-22 | 深圳市大疆创新科技有限公司 | Imaging apparatus and movable platform |
| WO2023013185A1 (en) * | 2021-08-06 | 2023-02-09 | マクセル株式会社 | Heater, lens unit, camera module, in-vehicle system, mobile body, and method for mounting heater |
| WO2023098696A1 (en) * | 2021-11-30 | 2023-06-08 | 东莞市宇瞳汽车视觉有限公司 | Rapid defogging optical device |
| US11927747B2 (en) | 2019-12-31 | 2024-03-12 | Jiangxi Lianchuang Electronic Co., Ltd. | Camera module, vehicle camera and monitoring system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016164173A1 (en) * | 2015-04-08 | 2016-10-13 | Illinois Tool Works Inc. | Camera heater for advanced driver assistance system |
| CN106560742A (en) * | 2015-10-05 | 2017-04-12 | Lg电子株式会社 | Camera Module And System For Preventing Of Dew Condensation In Camera Module |
| CN107690594A (en) * | 2015-06-03 | 2018-02-13 | Lg伊诺特有限公司 | Lens barrel and the camera model including the lens barrel |
| CN108351486A (en) * | 2015-10-30 | 2018-07-31 | Lg伊诺特有限公司 | Camara module and video camera for the vehicles |
| CN108780265A (en) * | 2016-03-15 | 2018-11-09 | 住友电气工业株式会社 | Infrared lenses component |
-
2019
- 2019-03-11 CN CN201910179116.9A patent/CN111679536A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016164173A1 (en) * | 2015-04-08 | 2016-10-13 | Illinois Tool Works Inc. | Camera heater for advanced driver assistance system |
| CN107690594A (en) * | 2015-06-03 | 2018-02-13 | Lg伊诺特有限公司 | Lens barrel and the camera model including the lens barrel |
| CN106560742A (en) * | 2015-10-05 | 2017-04-12 | Lg电子株式会社 | Camera Module And System For Preventing Of Dew Condensation In Camera Module |
| CN108351486A (en) * | 2015-10-30 | 2018-07-31 | Lg伊诺特有限公司 | Camara module and video camera for the vehicles |
| CN108780265A (en) * | 2016-03-15 | 2018-11-09 | 住友电气工业株式会社 | Infrared lenses component |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983766A (en) * | 2019-12-31 | 2020-11-24 | 江西联创电子有限公司 | Optical lens and imaging module |
| US11927747B2 (en) | 2019-12-31 | 2024-03-12 | Jiangxi Lianchuang Electronic Co., Ltd. | Camera module, vehicle camera and monitoring system |
| WO2022120754A1 (en) * | 2020-12-10 | 2022-06-16 | 欧菲光集团股份有限公司 | Lens barrel assembly, lens, photographing module, and electronic device |
| WO2022193091A1 (en) * | 2021-03-15 | 2022-09-22 | 深圳市大疆创新科技有限公司 | Imaging apparatus and movable platform |
| CN113126395A (en) * | 2021-04-08 | 2021-07-16 | 深圳市豪恩汽车电子装备股份有限公司 | Defogging lens |
| CN113114892A (en) * | 2021-04-10 | 2021-07-13 | 深圳市豪恩汽车电子装备股份有限公司 | Defogging camera |
| WO2023013185A1 (en) * | 2021-08-06 | 2023-02-09 | マクセル株式会社 | Heater, lens unit, camera module, in-vehicle system, mobile body, and method for mounting heater |
| WO2023098696A1 (en) * | 2021-11-30 | 2023-06-08 | 东莞市宇瞳汽车视觉有限公司 | Rapid defogging optical device |
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