CN114460794A - Automatic defogging camera lens - Google Patents
Automatic defogging camera lens Download PDFInfo
- Publication number
- CN114460794A CN114460794A CN202210376360.6A CN202210376360A CN114460794A CN 114460794 A CN114460794 A CN 114460794A CN 202210376360 A CN202210376360 A CN 202210376360A CN 114460794 A CN114460794 A CN 114460794A
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- China
- Prior art keywords
- lens
- heat insulation
- object side
- electric heater
- defogging
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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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- 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
- G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/52—Elements optimising image sensor operation, e.g. for electromagnetic interference [EMI] protection or temperature control by heat transfer or cooling elements
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Lens Barrels (AREA)
Abstract
The invention relates to the technical field of lenses, in particular to an automatic defogging lens, which comprises a lens component and a defogging component, wherein the lens component comprises an object-side lens, a front cover, a lens barrel and a rear lens group, and a heat insulation coating is arranged on a contact area of the object-side lens and the front cover; the defogging assembly comprises an electric heater, a heat insulation ring and an integrated wiring harness, the heat insulation ring is arranged between the object side lens and the rear lens group, and the top of the heat insulation ring is provided with a bearing groove matched with the non-optical effective area surface and the side surface of the object side lens. The electric heater is separated from other devices of the lens assembly by the heat insulation ring to generate a heat insulation effect, so that heat generated by the electric heater is prevented from acting on other devices, the heat utilization rate and the heating efficiency are improved, the influence on the optical performance of the whole lens caused by the temperature rise of the rear lens group due to redundant heat is avoided, and particularly when the rear lens group comprises lenses made of plastic materials, the structure is more suitable for demisting and defrosting.
Description
Technical Field
The invention relates to the technical field of lenses, in particular to an automatic defogging lens.
Background
With the progress and rapid development of scientific technology, the application range of the lens is more and more extensive, especially some lenses are used in some special scenes, and the performance of the lens is also required to be kept from being reduced, for example, the environments for using outdoor monitoring cameras, automobile automatic driving auxiliary lenses and the like are extremely harsh, the surface of the lens can generate water mist or ice, the imaging quality is influenced, the situations can generate great potential safety hazards, and the lens must have an automatic defrosting and defogging function in order to adapt to the requirements of the environment.
The patent with publication number CN113126395A discloses a defogging lens, which includes a lens barrel, at least one lens and a heating element, wherein the lens barrel is provided with a through hole, the at least one lens is disposed in the lens barrel and accommodated in the through hole, the heating element is disposed above the at least one lens, the heating element includes a heating lens and a power line which are connected with each other, the heating lens is disposed above the at least one lens, the power line penetrates through the lens barrel and is electrically connected with the heating lens, and when the external temperature is lower than the temperature in the lens barrel, the heating lens heats the at least one lens to prevent the generation of fog and/or dew. The defogging lens provided by the invention has the advantages of defogging and the like.
The defogging lens of the above patent removes fog by heating the lens, however, for a lens with good sealing performance, water fog or icing phenomenon can appear on the outermost object side lens generally, the existing defogging lens heats and defogges the object side lens generally through the heater, however, the heat of the heater is difficult to concentrate on the object side lens, the heat is easy to diffuse to the lens barrel or the optical element behind, which causes heat loss and affects heating efficiency, and in addition, the optical system behind the object side lens is heated by the heat temperature, which easily affects the imaging quality of the whole lens.
Disclosure of Invention
The present invention is directed to at least one of the technical problems of the prior art, and provides an automatic defogging lens.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: an automatic defogging lens comprises a lens component and a defogging component, wherein,
the lens assembly comprises an object-side lens, a front cover, a lens barrel and a rear lens group, the front cover, the object-side lens and the rear lens group are sequentially arranged on the lens barrel from outside to inside, the image side surface of the object-side lens comprises a non-optical effective area surface, and a heat insulation coating is arranged on the contact area of the object-side lens and the front cover;
the defogging subassembly includes electric heater, thermal-insulated circle, integrated pencil, the thermal-insulated circle sets up between thing side lens and rear mirror group, the top of thermal-insulated circle is provided with and accepts the recess with the non-optics active area face and the side complex of thing side lens, electric heater fixes in accepting the recess, electric heater's up end and non-optics active area face butt, integrated pencil one end is connected with electric heater, and the other end is used for external circuit, set up the trough that supplies integrated pencil to pass in the lens cone.
Further, the defogging assembly includes a temperature sensor for detecting a temperature of the electric heater.
Furthermore, a temperature measuring groove is formed in the heat insulation ring, the temperature sensor is fixed in the temperature measuring groove, and connecting wires of the temperature sensor are bundled in the integrated wire harness.
Further, a heat conducting coating is arranged on the inner wall of the bearing groove, the heat conducting coating is respectively contacted with the bottom of the electric heater and the side part of the object side lens, and the heat conducting coating is made of a heat conducting material.
Furthermore, the heat insulation coating and the heat insulation ring are made of heat insulation materials.
Further, the electric heater is an annular electric heating sheet.
Furthermore, the upper end of the front cover is clamped with the object-side lens, and the lower end of the front cover is in threaded connection with the outer side wall of the lens barrel.
Furthermore, a clamping groove matched with the front cover is arranged on the object side lens.
Further, a sealing ring is arranged between the object side lens and the lens barrel, and the sealing ring is located above the heat insulation ring.
Further, the heat insulation ring comprises an upper edge matched with the side surface of the object side lens, and the upper edge and the sealing ring are arranged between the object side lens and the lens barrel and separate the object side lens from the lens barrel.
Further, the thermal insulation coating covers a contact area of the object side lens and the sealing ring.
Furthermore, a water absorbing piece is arranged between the heat insulation ring and the rear lens group and/or a water absorbing coating is coated on the bottom of the heat insulation ring.
As can be seen from the above description of the present invention, compared with the prior art, the automatic defogging and defrosting lens of the present invention has at least one of the following advantages:
1. the defogging assembly comprises an electric heater, a heat insulation ring and an integrated wiring harness, wherein the electric heater is abutted against the non-optical effective area surface of the object side lens, the object side lens is directly heated by the electric heater so as to achieve the effect of rapid defogging and defrosting, the heat insulation ring is arranged between the object side lens and the rear lens group, and the electric heater is supported and fixed by a bearing groove on the heat insulation ring, so that the defogging assembly is of an integral structure and is convenient to assemble;
2. the electric heater is separated from other devices of the lens assembly through the heat insulation ring and generates a heat insulation effect, so that heat generated by the electric heater is prevented from acting on other devices, the heat utilization rate and the heating efficiency are improved, the influence on the optical performance of the whole lens caused by the temperature rise of the rear lens group due to redundant heat is avoided, and particularly when the rear lens group comprises a lens made of a plastic material, the structure is more suitable for demisting and defrosting;
3. according to the invention, all wires are concentrated in the integrated wire harness, the integrated wire harness is externally connected with the power circuit and the control circuit, and only one wiring groove is required to be arranged in the lens cone for the integrated wire harness to pass through, so that excessive circuits are avoided, the number of holes on the lens cone is reduced, and the structure of the lens cone can be kept intact;
4. the heat insulation coating is arranged on the contact area of the object side lens and the front cover, the heat transfer of the object side lens to the front cover is prevented through the heat insulation coating, unnecessary loss of heat is reduced, the heat utilization rate and the heating efficiency are improved, and the optical performance is prevented from being influenced by the fact that the heat is transferred to the rear lens group through the front cover and the lens cone.
Drawings
FIG. 1 is a schematic sectional front view of an automatic defogging lens according to a preferred embodiment of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a schematic side cross-sectional view of an automatic defogging lens according to a preferred embodiment of the present invention;
FIG. 4 is a schematic perspective view of an electric heater and an integrated wiring harness in accordance with a preferred embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of an insulating ring and a thermally conductive coating in accordance with a preferred embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of the heat insulating ring and the receiving groove in the preferred embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view of an object-side lens and a thermal barrier coating according to a preferred embodiment of the invention;
reference numerals are as follows: 1. a lens assembly; 2. a defogging assembly; 11. an object-side lens; 12. a front cover; 13. a lens barrel; 14. a rear lens group; 15. a thermal barrier coating; 16. a seal ring; 17. a water absorbing member; 21. an electric heater; 22. a heat insulation ring; 23. integrating the wire harness; 24. a temperature sensor; 131. a wiring groove; 221. a receiving groove; 222. a temperature measuring tank; 223. a thermally conductive coating.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Referring to fig. 1 to 7, in a preferred embodiment of the present invention, an automatic defogging lens includes a lens assembly 1 and a defogging assembly 2, wherein the lens assembly 1 includes an object-side lens 11, a front cover 12, a lens barrel 13 and a rear lens group 14, the front cover 12, the object-side lens 11 and the rear lens group 14 are sequentially disposed on the lens barrel 13 from outside to inside, an image side surface of the object-side lens 11 includes a non-optical effective area surface, and a contact area between the object-side lens 11 and the front cover 12 is provided with a thermal insulation coating 15; the defogging assembly 2 comprises an electric heater 21, a heat insulation ring 22 and an integrated wiring harness 23, the heat insulation ring 22 is arranged between the object side lens 11 and the rear lens group 14, a bearing groove 221 matched with a non-optical effective area surface and a side surface of the object side lens 11 is formed in the top of the heat insulation ring 22, the electric heater 21 is fixed in the bearing groove 221, the upper end surface of the electric heater 21 is abutted to the non-optical effective area surface, one end of the integrated wiring harness 23 is connected with the electric heater 21, the other end of the integrated wiring harness is used for an external circuit, and a wiring groove 131 for the integrated wiring harness 23 to pass through is formed in the lens barrel 13.
The defogging assembly 2 comprises an electric heater 21, a heat insulation ring 22 and an integrated wiring harness 23, wherein the electric heater 21 is abutted against the non-optical effective area surface of the object-side lens 11, the object-side lens 11 is directly heated through the electric heater 21 so as to achieve the effect of rapid defogging and defrosting, the heat insulation ring 22 is arranged between the object-side lens 11 and the rear lens group 14, and the electric heater 21 is supported and fixed through a bearing groove 221 on the heat insulation ring 22, so that the defogging assembly 2 is of an integral structure and is convenient to assemble; the object-side lens 11 includes an optically effective area surface and a non-optically effective area surface, the optically effective curved surface substantially acts on the image, and the non-optically effective area surface does not affect the image, and the electric heater 21 acts on the non-optically effective area surface of the object-side lens 11, so that the image is not affected;
the electric heater 21 is isolated from other devices of the lens component 1 by the heat insulation ring 22 to generate a heat insulation effect, so that heat generated by the electric heater 21 is prevented from acting on other devices, the heat utilization rate and the heating efficiency are improved, the influence on the optical performance of the whole lens caused by the temperature rise of the rear lens group 14 due to redundant heat is avoided, and particularly when the rear lens group 14 comprises lenses made of plastic materials, the structure provided by the invention is more suitable for demisting and defrosting;
according to the invention, all wires are concentrated in the integrated wire harness 23, the integrated wire harness 23 is externally connected with a power circuit and a control circuit, and only one wiring groove 131 is required to be arranged in the lens barrel 13 for the integrated wire harness 23 to pass through, so that excessive circuits are avoided, the number of holes on the lens barrel 13 is reduced, and the structure of the lens barrel 13 can be kept intact;
the heat insulation coating 15 is arranged on the contact area of the object side lens 11 and the front cover 12, the heat insulation coating 15 is used for preventing the object side lens 11 from transferring heat to the front cover 12, unnecessary heat loss is reduced, the heat utilization rate and the heating efficiency are improved, and the heat is prevented from being transferred to the rear lens group 14 through the front cover 12 and the lens barrel 13 to influence the optical performance.
As a preferred embodiment of the present invention, it may also have the following additional technical features:
in this embodiment, the defogging assembly 2 includes a temperature sensor 24, and the temperature sensor 24 is used for detecting the temperature of the electric heater 21. The temperature of the electric heater 21 is detected by the temperature sensor 24 in real time, and then the electric heater 21 is controlled by an external control device, specifically, the control principle of the invention is that the integrated wire harness 23 is connected with a power circuit, the power circuit supplies power to the electric heater 21 and the temperature sensor 24 through the integrated wire harness 23, when the electric heater works, a resistance wire in the electric heater 21 continuously generates heat, so that the temperature of the object side lens 11 rises, the temperature sensor 24 connected with the electric heater 21 monitors the change of the surface temperature of the electric heater 21 in real time, and feeds a temperature value back to a control circuit at the rear end, when the temperature is lower than a set temperature value, the control circuit controls the electric heater 21 to automatically start working for a period of time, so as to heat the object side lens 11 and defrost.
In this embodiment, the heat insulation ring 22 is provided with a temperature measuring groove 222, the temperature sensor 24 is fixed in the temperature measuring groove 222, and the connecting wires of the temperature sensor 24 are bundled in the integrated wire harness 23. The temperature sensor 24 is fixedly placed by the temperature measuring groove 222, and the connecting wires of the temperature sensor 24 are bundled by the integrated wiring harness 23, so that the defogging assembly 2 is of an integral structure and is convenient to assemble.
In this embodiment, a heat conducting coating 223 is disposed on an inner wall of the receiving groove 221, the heat conducting coating 223 is in contact with a bottom of the electric heater 21 and a side of the object-side lens 11, and the heat conducting coating 223 is made of a heat conducting material. The heat at the bottom of the electric heater 21 is conducted to the side of the object-side lens 11 through the heat conducting coating 223, so that the heated area of the object-side lens 11 is increased, the heating is more uniform, the object-side lens 11 is prevented from being damaged due to the fact that the local part of the object-side lens 11 is heated too fast and too large, and the heating efficiency is improved.
In this embodiment, the thermal insulation coating 15 and the thermal insulation ring 22 are both made of thermal insulation material. The heat insulation coating 15 and the heat insulation ring 22 are made of heat insulation materials, so that the heat insulation effect is good, and the materials need to meet the characteristics of low heat conductivity, high temperature resistance and the like, and the specific materials are determined according to the situation.
In the present embodiment, the electric heater 21 is a ring-shaped electric heating plate. The electric heater 21 adopts an annular electric heating sheet matched with the shape of the non-optical effective area surface to increase the heating area, and particularly, the heating can be realized by arranging an electric heating wire in the annular electric heating sheet, but not limited to this.
In this embodiment, the upper end of the front cover 12 is clamped to the object-side lens 11, the lower end of the front cover 12 is screwed to the outer sidewall of the lens barrel 13, and a clamping groove matched with the front cover 12 is disposed on the object-side lens 11. The object side lens 11 is provided with a clamping groove, the front cover 12 is in threaded connection with the lens barrel 13, and the object side lens 11 is clamped in the lens barrel 13 through the front cover 12.
In this embodiment, a seal ring 16 is disposed between the object side lens 11 and the lens barrel 13, and the seal ring 16 is located above the heat insulating ring 22. The sealing ring 16 deforms under the squeezing of the object-side lens 11 and the lens barrel 13, and the front cover 12 and the heat insulating ring 22 respectively limit the position of the sealing ring 16 above and below, so that the sealing ring 16 is prevented from moving under the influence of other factors, and the front end of the lens can achieve the waterproof and dustproof effects.
In the present embodiment, the heat insulating ring 22 includes an upper edge engaged with a side surface of the object-side lens 11, and the upper edge and the sealing ring 16 are disposed between the object-side lens 11 and the lens barrel 13 and separate the object-side lens 11 and the lens barrel 13. The object side lens 11 and the lens barrel 13 are separated by the upper edge of the heat insulation ring 22 and the sealing ring 16, so that the heat transfer from the object side lens 11 to the lens barrel 13 is avoided, and the heat utilization rate is improved.
In this embodiment, the thermal insulation coating 15 covers a contact area of the object-side lens 11 and the sealing ring 16. The heat insulation coating 15 prevents the object side lens 11 from transferring heat to the sealing ring 16, and the heat utilization rate is improved.
In this embodiment, a water absorbing member 17 is disposed between the heat insulating ring 22 and the rear lens group 14 and/or a water absorbing coating is coated on the bottom of the heat insulating ring 22. The water absorbing piece 17 is arranged between the heat insulation ring 22 and the rear lens group 14 to ensure that the internal environment of the lens is dry and prevent the internal fogging of the lens, and the water absorbing coating can be coated at the bottom of the heat insulation ring 22 to realize the effect, the practical application mode is determined by the position distance relationship between the heat insulation ring 22 and the rear lens group 14, and particularly, the water absorbing piece 17 can be a water absorbing cotton ring, but is not limited to the water absorbing cotton ring.
The above additional technical features can be freely combined and used in superposition by those skilled in the art without conflict.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (12)
1. An automatic defogging lens is characterized in that: comprises a lens component (1) and a defogging component (2), wherein,
the lens assembly (1) comprises an object side lens (11), a front cover (12), a lens barrel (13) and a rear lens group (14), wherein the front cover (12), the object side lens (11) and the rear lens group (14) are sequentially arranged on the lens barrel (13) from outside to inside, the image side surface of the object side lens (11) comprises a non-optical effective area surface, and a heat insulation coating (15) is arranged on a contact area of the object side lens (11) and the front cover (12);
defogging subassembly (2) are including electric heater (21), heat insulating circle (22), integrated pencil (23), heat insulating circle (22) sets up between object side lens (11) and rear mirror group (14), the top of heat insulating circle (22) is provided with accepts recess (221) with the non-optics active area face and the side complex of object side lens (11), electric heater (21) are fixed in accepting recess (221), the up end and the non-optics active area face butt of electric heater (21), integrated pencil (23) one end is connected with electric heater (21), and the other end is used for external circuit, set up trough (131) that supply integrated pencil (23) to pass in lens cone (13).
2. An automatic defogging lens assembly as recited in claim 1, wherein: the defogging assembly (2) comprises a temperature sensor (24), and the temperature sensor (24) is used for detecting the temperature of the electric heater (21).
3. An automatic defogging lens assembly as recited in claim 2, wherein: the heat insulation ring (22) is provided with a temperature measuring groove (222), the temperature sensor (24) is fixed in the temperature measuring groove (222), and connecting wires of the temperature sensor (24) are bundled in the integrated wire harness (23).
4. An automatic defogging lens assembly as recited in claim 1, wherein: a heat conduction coating (223) is arranged on the inner wall of the bearing groove (221), the heat conduction coating (223) is respectively contacted with the bottom of the electric heater (21) and the side of the object-side lens (11), and the heat conduction coating (223) is made of a heat conduction material.
5. An automatic defogging lens assembly as recited in claim 1, wherein: the heat insulation coating (15) and the heat insulation ring (22) are both made of heat insulation materials.
6. An automatic defogging lens assembly as recited in claim 1, wherein: the electric heater (21) is an annular electric heating sheet.
7. An automatic defogging lens assembly as recited in claim 1, wherein: the upper end of the front cover (12) is clamped with the object side lens (11), and the lower end of the front cover (12) is in threaded connection with the outer side wall of the lens barrel (13).
8. An automatic defogging lens assembly as recited in claim 7, wherein: and a clamping groove matched with the front cover (12) is arranged on the object side lens (11).
9. An automatic defogging lens assembly as recited in claim 1, wherein: a sealing ring (16) is arranged between the object side lens (11) and the lens barrel (13), and the sealing ring (16) is positioned above the heat insulation ring (22).
10. An automatic defogging lens assembly as recited in claim 9, wherein: the heat insulation ring (22) comprises an upper edge matched with the side surface of the object side lens (11), and the upper edge and the sealing ring (16) are arranged between the object side lens (11) and the lens barrel (13) and separate the object side lens (11) and the lens barrel (13).
11. An automatic defogging lens assembly as recited in claim 9, wherein: the thermal insulation coating (15) covers the contact area of the object side lens (11) and the sealing ring (16).
12. An automatic defogging lens according to claim 1, wherein: a water absorbing piece (17) is arranged between the heat insulation ring (22) and the rear lens group (14) and/or a water absorbing coating is coated on the bottom of the heat insulation ring (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210376360.6A CN114460794A (en) | 2022-04-12 | 2022-04-12 | Automatic defogging camera lens |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210376360.6A CN114460794A (en) | 2022-04-12 | 2022-04-12 | Automatic defogging camera lens |
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| CN114460794A true CN114460794A (en) | 2022-05-10 |
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| CN202210376360.6A Pending CN114460794A (en) | 2022-04-12 | 2022-04-12 | Automatic defogging camera lens |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115297235A (en) * | 2022-07-21 | 2022-11-04 | 杭州海康威视数字技术股份有限公司 | Image acquisition apparatus and control method of image acquisition apparatus |
| CN116149116A (en) * | 2023-04-18 | 2023-05-23 | 江西联创电子有限公司 | Lens structure, camera module and electronic equipment |
| CN117092871A (en) * | 2023-10-17 | 2023-11-21 | 江西联创电子有限公司 | Heating lens |
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| WO2022002681A1 (en) * | 2020-06-30 | 2022-01-06 | Orlaco Products B.V. | Camera system with lens heater |
| CN214335332U (en) * | 2021-03-15 | 2021-10-01 | 纮立光电股份有限公司 | Imaging lens |
| CN215494295U (en) * | 2021-07-02 | 2022-01-11 | 纮立光电股份有限公司 | Optical imaging lens |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115297235A (en) * | 2022-07-21 | 2022-11-04 | 杭州海康威视数字技术股份有限公司 | Image acquisition apparatus and control method of image acquisition apparatus |
| CN115297235B (en) * | 2022-07-21 | 2023-09-01 | 杭州海康威视数字技术股份有限公司 | Image acquisition apparatus and control method of image acquisition apparatus |
| CN116149116A (en) * | 2023-04-18 | 2023-05-23 | 江西联创电子有限公司 | Lens structure, camera module and electronic equipment |
| CN117092871A (en) * | 2023-10-17 | 2023-11-21 | 江西联创电子有限公司 | Heating lens |
| CN117092871B (en) * | 2023-10-17 | 2024-02-13 | 江西联创电子有限公司 | Heating lens |
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Application publication date: 20220510 |