CN114137782A - Quick defogging optical device - Google Patents

Quick defogging optical device Download PDF

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Publication number
CN114137782A
CN114137782A CN202111437801.0A CN202111437801A CN114137782A CN 114137782 A CN114137782 A CN 114137782A CN 202111437801 A CN202111437801 A CN 202111437801A CN 114137782 A CN114137782 A CN 114137782A
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CN
China
Prior art keywords
lens
frame
optical device
heat conduction
heat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111437801.0A
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Chinese (zh)
Inventor
王乐
米士隆
陈吕望
陈乔熙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Yutong Automobile Vision Co ltd
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Dongguan Yutong Automobile Vision Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongguan Yutong Automobile Vision Co ltd filed Critical Dongguan Yutong Automobile Vision Co ltd
Priority to CN202111437801.0A priority Critical patent/CN114137782A/en
Publication of CN114137782A publication Critical patent/CN114137782A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B17/00Details of cameras or camera bodies; Accessories therefor
    • G03B17/55Details of cameras or camera bodies; Accessories therefor with provision for heating or cooling, e.g. in aircraft
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B30/00Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00Ohmic-resistance heating
    • H05B3/84Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Lens Barrels (AREA)

Abstract

The invention relates to the technical field of vehicle-mounted lenses, and discloses a quick demisting optical device, which comprises: a first lens; the heat conduction mirror frame is of a cylindrical structure, the first lens is mounted at one end of the heat conduction mirror frame, and the peripheral part of the first lens is connected with the heat conduction mirror frame; the power supply module is provided with a heating element, the heating element is connected with the heat conduction mirror frame through a heat conduction element, the heating element generates heat when being electrified and conducts heat to the heat conduction mirror frame through the heat conduction element, and the heat conduction mirror frame transfers the heat to the first lens. The rapid demisting optical device provided by the invention can rapidly and effectively solve the problem of water vapor condensation on the first lens.

Description

Quick defogging optical device
Technical Field
The invention relates to the technical field of vehicle-mounted lenses, in particular to a quick demisting optical device.
Background
With the popularization of automation and intellectualization of automobiles, the requirement on the definition of images of the vehicle-mounted lens is higher and higher. In the automatic driving technology of the automobile, the vehicle-mounted lens is used as the eyes of the automobile, the definition cannot be blurred in the application process, otherwise, program judgment errors can occur, and the automobile is seriously damaged and people die. When the vehicle-mounted lens is used, the part with the largest temperature difference on the lens is the lens with the lens end in contact with the outside, and if the temperature difference between the inside and the outside of the vehicle-mounted lens is large or the vehicle-mounted lens is in an environment with high humidity, water mist or water drops can appear on the lens inside the lens, so that an image formed by the lens becomes fuzzy, and the driving safety is seriously influenced. At present, most of vehicle-mounted lenses on the market utilize the leakproofness to eliminate fog in the lenses, the fog elimination time is slow, the driving safety is influenced, and the customer experience effect is poor.
Therefore, a need exists for a fast defogging optical device to quickly eliminate or prevent fog or water drops from being generated inside the lens, so as to solve the problem of image blur.
Disclosure of Invention
Based on the above, the present invention provides a rapid defogging optical device, which can rapidly and effectively solve the problem of water vapor condensation on the first lens.
In order to achieve the purpose, the invention adopts the following technical scheme:
there is provided a rapid defogging optical device comprising:
a first lens;
the heat conduction mirror frame is of a cylindrical structure, the first lens is mounted at one end of the heat conduction mirror frame, and the peripheral part of the first lens is connected with the heat conduction mirror frame; and
the power supply module is provided with a heating element, the heating element is connected with the heat conduction mirror frame through a heat conduction element, the heating element generates heat when being electrified and conducts heat to the heat conduction mirror frame through the heat conduction element, and the heat conduction mirror frame transfers the heat to the first lens.
Specifically, quick defogging optical device can independently heat first lens, and when first lens was heated to needs, heat conduction element produced heat conduction with heating element to the heat conduction picture frame, the heat conduction picture frame was with heat conduction to first lens again, impels first lens intensification, can enough make the fog pearl vaporization dissipation of being attached to it after first lens intensification, also can prevent that steam from liquefying and condensing to the fog pearl on first lens to quick effectual solution quick defogging optical device's the steam condensation problem. The heat conduction frame is used as a heating element to conduct heat to one of the middlings of the first lens, so that the design cost and the production cost of an additionally arranged heat conduction structure are reduced, the periphery of the first lens is connected with the heat conduction frame, the heat conduction contact area is large, the heat conduction efficiency is high, and the speed of eliminating fog can be effectively guaranteed.
As an optional technical solution of the optical device for rapid defogging, a peripheral portion of the first lens is tightly abutted to an inner wall of the heat conducting mirror frame, a sealing groove is formed in the peripheral portion of the first lens, and a sealing ring is arranged in the sealing groove and used for sealing a gap between the first lens and the heat conducting mirror frame.
As an optional technical solution of the optical device for rapid defogging, one end of the first lens facing the outside of the heat conduction frame is set as an outer convex surface, and one end of the first lens facing the through hole of the heat conduction frame is set as an inner concave surface.
As an optional technical solution of the rapid defogging optical device, the rapid defogging optical device further includes a second lens, the second lens is disposed in the through hole of the heat conduction frame, a peripheral portion of the second lens abuts against an inner wall of the heat conduction frame, the second lens is disposed on one side of the first lens facing the through hole of the heat conduction frame, one end of the second lens facing the first lens is set as an outer convex surface, and one end of the second lens facing away from the first lens is set as an inner concave surface.
As an optional technical solution of the rapid defogging optical device, the rapid defogging optical device further includes a third lens and a fourth lens, the third lens and the fourth lens are disposed in the through hole of the heat conduction frame side by side and are both located on a side of the second lens departing from the first lens, and the third lens and the fourth lens are both abutted to the inner wall of the heat conduction frame.
As an optional technical scheme of the rapid defogging optical device, a space ring is further arranged between the third lens and the fourth lens, a light through hole is formed in the middle of the space ring, and a light guide stepped structure is arranged on the inner wall of the light through hole.
As an optional technical solution of the rapid defogging optical device, the rapid defogging optical device further includes a photosensitive chip, and the photosensitive chip is disposed at one end of the heat conducting mirror frame, which is far away from the first lens.
As an optional technical solution of the rapid defogging optical device, the rapid defogging optical device further includes a filter, the filter is disposed in the through hole of the heat conduction frame, and the filter is located between the first lens and the photosensitive chip.
As an optional technical scheme of the rapid demisting optical device, the thermal conductivity coefficient of the thermal conduction mirror frame is between 1W/(m.K) and 250W/(m.K).
As an alternative to the rapid defogging optical device, the heat conducting element is a metal wire.
The invention has the beneficial effects that:
the rapid defogging optical device provided by the invention can autonomously heat the first lens, when the first lens needs to be heated, the heat conducting element conducts the heat generated by the heating element to the heat conducting lens frame, the heat conducting lens frame conducts the heat to the first lens, so that the temperature of the first lens is increased, the fog beads attached to the first lens can be vaporized and dissipated after the first lens is heated, and the water vapor can be prevented from being liquefied and condensed into the fog beads on the first lens, so that the problem of water vapor condensation of the rapid defogging optical device can be rapidly and effectively solved. The heat-conducting mirror frame is used as one of the intermediate pieces for conducting heat from the heating element to the first lens, so that the design cost and the production cost of an additional heat-conducting structure are reduced, the peripheral part of the first lens is connected with the heat-conducting mirror frame, the heat-conducting contact area is large, the heat-conducting efficiency is high, and the speed of eliminating fog can be effectively guaranteed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a rapid defogging optical device provided by the present invention.
In the figure:
1. a first lens; 101. a sealing groove; 2. a heat conducting mirror frame; 3. a power supply module; 4. a heat conducting element; 5. a second lens; 6. a third lens; 7. a fourth lens; 8. a space ring; 81. a light through hole; 82. a light guiding stepped structure; 9. a photosensitive chip; 10. an optical filter; 11. and (5) sealing rings.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the present embodiment provides a rapid defogging optical device, which may be an on-vehicle lens, an optical lampshade, etc., and has the functions of actively defogging, defrosting, and preventing fog. That is, when the rapid defogging optical device is in a continuous rainy, icy or alternating hot and cold environment, the rapid defogging optical device can actively defog and defrost as well as prevent fogging to ensure reliability of its optical performance.
Specifically, the optical device for rapid defogging in this embodiment is a vehicle-mounted lens, and the optical device for rapid defogging includes a first lens 1, a heat conduction lens frame 2, a power supply module 3, and a heat conduction element 4. The heat conduction frame 2 is of a cylindrical structure, the first lens 1 is mounted at one end of the heat conduction frame 2, and the periphery of the first lens 1 is connected with the heat conduction frame 2; be equipped with heating element on the power module 3, heating element passes through heat conduction element 4 and is connected with heat conduction picture frame 2, and heating element generates heat when the circular telegram to through heat conduction element 4 to heat conduction picture frame 2 conduction heat, heat conduction picture frame 2 is with heat transfer to first lens 1.
Specifically, quick defogging optical device can independently heat first lens 1, when first lens 1 is heated to needs, heat conduction element 4 conducts the produced heat of heating element to heat conduction picture frame 2, heat conduction picture frame 2 conducts the heat to first lens 1 again, make first lens 1 heat up, can enough make the fog pearl vaporization dissipation of attaching to it after first lens 1 heaies up, also can prevent that steam from liquefying and condensing to the fog pearl on first lens 1, with the steam condensation problem on quick effectual solution first lens 1, guarantee driving safety. In the embodiment, the heat-conducting mirror frame 2 is used as one of the intermediate pieces for heat conduction from the heating element to the first lens 1, so that the design cost and the production cost of an additionally-arranged heat-conducting structure are reduced, the peripheral part of the first lens 1 is connected with the heat-conducting mirror frame 2, the heat-conducting contact area is large, the heat-conducting efficiency is high, and the speed of eliminating fog can be effectively guaranteed.
It should be noted that, in this embodiment, the power supply module 3 and other parts in the vehicle-mounted lens are fixed and connected to each other through a lens mount (not shown in the figure), and the lens mount is configured by a conventional lens mount structure, which belongs to the common general knowledge, and detailed descriptions thereof are omitted here.
Optionally, the thermal conductivity of the frame 2 is between 1W/(m · K) and 250W/(m · K).
Preferably, the heat-conducting mirror frame 2 may be made of a metal material such as steel, wrought iron, and cast iron, or may be made of a non-metal material such as glass and carbon fiber.
Optionally, the heating element may be a heating wire, a thermistor, an electrothermal film, or the like.
Optionally, the heat conducting element 4 is made of metal wire, and of course, the heat conducting element 4 may also be made of metal sheet, metal plate, or other structures. Preferably, the metal wire may be made of copper metal.
Preferably, a plurality of heat conduction elements 4 are provided, and the plurality of heat conduction elements 4 are simultaneously connected with the heating element and the heat conduction frame 2, so that the efficiency of transferring heat from the heating element to the heat conduction frame 2 is improved, and the defogging speed is further improved.
Optionally, the periphery of the first lens 1 is tightly abutted to the inner wall of the heat-conducting mirror frame 2, the periphery of the first lens 1 is provided with a sealing groove 101, a sealing ring 11 is arranged in the sealing groove 101, and the sealing ring 11 is used for blocking a gap between the first lens 1 and the heat-conducting mirror frame 2, so that external water vapor is blocked outside the first lens 1, the humidity inside the first lens 1 is reduced, and the defogging efficiency is ensured.
Optionally, quick defogging optical device still includes sensitization chip 9, and sensitization chip 9 is located the one end that first lens 1 was kept away from to heat conduction picture frame 2, and sensitization chip 9 is used for receiving the light that passes the through-hole of heat conduction picture frame 2.
Preferably, the interval of the power supply module 3 is set up in the other end of the heat conduction picture frame 2, and the power supply module 3 includes the circuit board, and the sensitization chip 9 sets up on the circuit board, and the sensitization chip 9 is just to the central axis of the heat conduction picture frame 2, and light reaches the sensitization chip 9 after passing the through-hole of the heat conduction picture frame 2.
Optionally, one end of the first lens 1 facing the heat conducting frame 2 is set to be an outer convex surface, one end of the first lens 1 facing the through hole of the heat conducting frame 2 is set to be an inner concave surface, that is, the main body of the first lens 1 is set to be a crescent lens structure.
Optionally, the quick defogging optical device further includes a second lens 5, the second lens 5 is disposed in the through hole of the heat conduction frame 2, the peripheral portion of the second lens 5 is abutted to the inner wall of the heat conduction frame 2, the second lens 5 is disposed on one side of the through hole of the first lens 1 facing the heat conduction frame 2, one end of the second lens 5 facing the first lens 1 is set as an outer convex surface, one end of the second lens 5 facing away from the first lens 1 is set as an inner concave surface, namely, the main body portion of the second lens 5 is set as a meniscus lens structure. Specifically, since there may be moisture in the gap between the first lens 1 and the second lens 5, although the fluctuation of the temperature of the second lens 5 along with the change of the air temperature is less obvious than that of the first lens 1, the fog beads may be condensed on the second lens 5, so that the heat conducting frame 2 is also in contact with the second lens 5, and the heat can be conducted to the second lens 5, thereby having a defogging effect on the second lens 5.
Preferably, the first lens 1 and the second lens 5 are in contact with each other so that heat is conducted between the first lens 1 and the second lens 5, and the effect of synchronous temperature rise is achieved during heating.
Optionally, quick defogging optical device still includes third lens 6 and fourth lens 7, and third lens 6 and fourth lens 7 set up side by side in the through-hole of heat conduction picture frame 2, and all are located second lens 5 and deviate from one side of first lens 1, and third lens 6 and fourth lens 7 all with the inner wall butt of heat conduction picture frame 2.
Optionally, a spacer 8 is further disposed between the third lens 6 and the fourth lens 7, a light passing hole 81 is disposed in the middle of the spacer 8, and a light guiding stepped structure 82 is disposed on an inner wall of the light passing hole 81 and used for adjusting the incident direction of light.
Optionally, the rapid defogging optical device further includes a filter 10, the filter 10 is disposed in the through hole of the heat conduction frame 2, the filter 10 is located between the first lens 1 and the photosensitive chip 9, and the filter 10 is used for screening out light rays with required wave bands.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A rapid defogging optical device comprising:
a first lens (1);
the heat conduction mirror frame (2) is of a cylindrical structure, the first lens (1) is installed at one end of the heat conduction mirror frame (2), and the peripheral part of the first lens (1) is connected with the heat conduction mirror frame (2); and
the power supply module (3), be equipped with heating element on the power supply module (3), heating element pass through heat conduction element (4) with heat conduction picture frame (2) are connected, heating element generates heat when circular telegram, and through heat conduction element (4) to heat conduction picture frame (2) heat conduction, heat conduction picture frame (2) with the heat transfer extremely first lens (1).
2. The optical device as claimed in claim 1, wherein the periphery of the first lens (1) is in close contact with the inner wall of the heat conducting lens frame (2), the periphery of the first lens (1) is provided with a sealing groove (101), a sealing ring (11) is arranged in the sealing groove (101), and the sealing ring (11) is used for sealing the gap between the first lens (1) and the heat conducting lens frame (2).
3. Optical device for rapid demisting according to claim 1, characterized in that the end of the first lens (1) facing the outside of the thermally conductive frame (2) is provided as an outer convex surface, and the end of the first lens (1) facing the through hole of the thermally conductive frame (2) is provided as an inner concave surface.
4. The optical device as claimed in claim 1, further comprising a second lens, the second lens being disposed in the through hole of the heat conducting lens frame (2), the periphery of the second lens (5) abutting against the inner wall of the heat conducting lens frame (2), the second lens (5) being disposed on the side of the first lens (1) facing the through hole of the heat conducting lens frame (2), the end of the second lens (5) facing the first lens (1) being disposed as an outer convex surface, and the end of the second lens (5) facing away from the first lens (1) being disposed as an inner concave surface.
5. A rapid defogging optical device according to claim 4, wherein the rapid defogging optical device further comprises a third lens (6) and a fourth lens (7), the third lens (6) and the fourth lens (7) are arranged side by side in the through hole of the heat conducting lens frame (2) and are both positioned at one side of the second lens (5) departing from the first lens (1), and the third lens (6) and the fourth lens (7) are both abutted to the inner wall of the heat conducting lens frame (2).
6. The optical device as claimed in claim 5, wherein a spacer (8) is further disposed between the third lens (6) and the fourth lens (7), a light-passing hole (81) is disposed in the middle of the spacer (8), and a light-guiding stepped structure (82) is disposed on the inner wall of the light-passing hole (81).
7. The optical device as claimed in claim 1, further comprising a photosensitive chip (9), wherein the photosensitive chip (9) is disposed at an end of the thermally conductive frame (2) away from the first lens (1).
8. A rapid defogging optical device according to claim 7, wherein the rapid defogging optical device further comprises a filter (10), the filter (10) is arranged in the through hole of the heat conducting lens frame (2), and the filter (10) is positioned between the first lens (1) and the photosensitive chip (9).
9. A rapid defogging optical device according to any one of claims 1 to 8, wherein the thermal conductivity of the thermal conductive lens frame (2) is between 1W/(m-K) and 250W/(m-K).
10. A rapid defogging optical device according to any one of claims 1 to 8, wherein the heat conducting element (4) is a metal wire.
CN202111437801.0A 2021-11-30 2021-11-30 Quick defogging optical device Pending CN114137782A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111437801.0A CN114137782A (en) 2021-11-30 2021-11-30 Quick defogging optical device

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Application Number Priority Date Filing Date Title
CN202111437801.0A CN114137782A (en) 2021-11-30 2021-11-30 Quick defogging optical device

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CN114137782A true CN114137782A (en) 2022-03-04

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CN202111437801.0A Pending CN114137782A (en) 2021-11-30 2021-11-30 Quick defogging optical device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114879344A (en) * 2022-05-23 2022-08-09 东莞市宇瞳汽车视觉有限公司 Fixed focus lens

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204287584U (en) * 2014-12-16 2015-04-22 福建福光数码科技有限公司 Ultra-wide angle high definition day and night focuses mould camera lens
CN109828425A (en) * 2018-12-25 2019-05-31 闳晖实业股份有限公司 Camera lens heating module and the camera lens and camera for using it
CN111045178A (en) * 2020-01-02 2020-04-21 中山联合光电科技股份有限公司 Lens structure capable of dissipating fog quickly
CN111935376A (en) * 2020-08-07 2020-11-13 宁波为森智能传感技术有限公司 Camera module with defogging function
CN214375759U (en) * 2021-03-31 2021-10-08 天津欧菲光电有限公司 Lens barrel, lens, camera module and vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204287584U (en) * 2014-12-16 2015-04-22 福建福光数码科技有限公司 Ultra-wide angle high definition day and night focuses mould camera lens
CN109828425A (en) * 2018-12-25 2019-05-31 闳晖实业股份有限公司 Camera lens heating module and the camera lens and camera for using it
CN111045178A (en) * 2020-01-02 2020-04-21 中山联合光电科技股份有限公司 Lens structure capable of dissipating fog quickly
CN111935376A (en) * 2020-08-07 2020-11-13 宁波为森智能传感技术有限公司 Camera module with defogging function
CN214375759U (en) * 2021-03-31 2021-10-08 天津欧菲光电有限公司 Lens barrel, lens, camera module and vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114879344A (en) * 2022-05-23 2022-08-09 东莞市宇瞳汽车视觉有限公司 Fixed focus lens
CN114879344B (en) * 2022-05-23 2023-08-22 东莞市宇瞳汽车视觉有限公司 Fixed focus lens

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