CN106851061B - Image acquisition device - Google Patents
Image acquisition device Download PDFInfo
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- CN106851061B CN106851061B CN201710058610.0A CN201710058610A CN106851061B CN 106851061 B CN106851061 B CN 106851061B CN 201710058610 A CN201710058610 A CN 201710058610A CN 106851061 B CN106851061 B CN 106851061B
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- electrode
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- light blocking
- temperature
- lens
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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
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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
- H04N23/51—Housings
Abstract
The invention relates to the technical field of image acquisition and discloses image acquisition equipment. Image acquisition equipment includes transparent dustcoat, anti-fog device, camera lens, fixing device, temperature and humidity sensor and controlling means, wherein: the anti-fog device comprises a conductive light blocking ring, a first electrode and a second electrode which are respectively connected with the conductive light blocking ring; the lens and the anti-fog device are respectively connected with the fixing device, and the conductive light blocking ring is sleeved outside the lens; the transparent outer cover is covered outside the fixing device; the control device is electrically connected with the temperature and humidity sensor, and when the temperature and humidity sensor detects that the humidity in the image acquisition equipment reaches a set humidity threshold value, the control device controls the first electrode and the second electrode to be electrified.
Description
Technical Field
The invention relates to the technical field of image acquisition, in particular to image acquisition equipment.
Background
When the camera is used, if the temperature of the use environment of the camera is suddenly reduced, the inner side of the transparent outer cover in front of the lens of the camera can generate a fogging phenomenon, and further the image pickup quality is seriously reduced.
The reason why the inner side of the transparent outer cover in front of the camera lens is fogged is as follows: the inside saturated and/or supersaturated air of camera is after cooling down rapidly, and the inside existing steam that can't hold of camera, unnecessary steam can condense for very little dew because heterogeneous nucleation's effect, and then dew can form the water smoke in the dustcoat inboard before the camera lens, influences the imaging level of camera.
At present, the solution for fogging inside the transparent outer cover of the camera is generally:
firstly, the interior of the camera adopts a vacuum environment or is filled with inert gas so as to reduce the heat conduction inside and outside the camera. The method can reduce the fogging phenomenon of the camera to a certain extent, but the scheme has higher requirement on the sealing performance of the camera, so that the cost of the camera is higher;
secondly, the camera is heated by a special heating element. This solution increases the complexity of the product to a certain extent, and increases the cost of the camera, since it requires additional heating elements; in addition, the heating element needs to be attached in the camera through double-sided adhesive tape and only can be suitable for a single arc surface, so that the application range of the technical scheme is narrow.
Based on this, there is a need in the art for a camera with less or even no fogging.
Disclosure of Invention
The invention aims to provide an image acquisition device, which can reduce the fogging phenomenon generated when the image acquisition device is used and reduce the manufacturing cost of the image acquisition device.
The embodiment of the invention provides image acquisition equipment, which comprises a transparent outer cover, an anti-fog device, a lens, a fixing device, a temperature and humidity sensor and a control device, wherein: the anti-fog device comprises a conductive light blocking ring, a first electrode and a second electrode which are respectively connected with the conductive light blocking ring; the lens and the anti-fog device are respectively connected with the fixing device, and the conductive light blocking ring is sleeved outside the lens; the transparent outer cover is covered outside the fixing device; the control device is electrically connected with the temperature and humidity sensor, and when the temperature and humidity sensor detects that the humidity in the image acquisition equipment reaches a set humidity threshold value, the control device controls the first electrode and the second electrode to be electrified.
In the embodiment of the invention, when the humidity in the image acquisition equipment reaches the set humidity threshold value, namely the fog-forming condition is reached, the anti-fog device works, the control device controls the first electrode and the second electrode to be electrified, the first electrode, the second electrode and the conductive light blocking ring form a closed loop, the conductive light blocking ring is equivalent to a resistor, and the conductive light blocking ring generates heat when the temperature is increased after being electrified so as to increase the temperature of the image acquisition equipment, so that the fog-forming phenomenon generated after the temperature of the image acquisition equipment is reduced can be effectively reduced, and the imaging quality of the image acquisition equipment can be further improved.
Preferably, when the temperature and humidity sensor detects that the temperature inside the image acquisition device reaches a set temperature threshold, the control device controls the first electrode and the second electrode to be powered off.
Preferably, a gap is formed between the conductive stop ring and the lens.
Preferably, the gap between the conductive stop ring and the lens is 1-2 mm.
Preferably, the conductive light blocking ring is made of conductive silica gel.
Preferably, the conductive light blocking ring is in interference fit with the transparent outer cover.
Specifically, the fixing device is further provided with a conductive connector, and the conductive connector is connected with the first electrode and the second electrode respectively through wires and then connected with a power supply interface.
Preferably, the fixing device is provided with a bayonet, the conductive light blocking ring is provided with a hook, and the hook is clamped with the hook.
Specifically, the first electrode, the second electrode and the fixing device are bonded through double-sided adhesive tapes, and/or the conductive stop diaphragm is connected with the first electrode and the second electrode in a crimping mode.
Specifically, the shape of the conductive stop ring is matched with the shape of the lens.
Drawings
FIG. 1 is an exploded view of an image capture device according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of an image capturing device according to an embodiment of the present invention;
fig. 3 is a schematic partial structure diagram of an image capturing device according to an embodiment of the present invention.
Description of reference numerals:
10-transparent outer cover
100-antifogging device
20-conductive light-blocking ring
21-first electrode
22-second electrode
30-fixing device
31-bayonet
40-lens
50-conductive joint
60-temperature and humidity sensor
70-control device
Detailed Description
In order to reduce the fogging phenomenon generated when the image acquisition equipment is used and reduce the manufacturing cost of the image acquisition equipment, the embodiment of the invention provides the image acquisition equipment. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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, an embodiment of the present invention provides an image capturing apparatus, including a transparent housing 10, an anti-fog device 100, a lens 40, a fixing device 30, a temperature and humidity sensor 60, and a control device 70, where:
the anti-fog device 100 comprises a conductive stop diaphragm 20 and a first electrode 21 and a second electrode 22 which are respectively connected with the conductive stop diaphragm 20;
the lens 40 and the anti-fog device 100 are respectively connected with the fixing device 30, and the conductive light blocking ring 20 is sleeved outside the lens 40;
the transparent outer cover 10 covers the fixing device 30;
the control device 70 is electrically connected to the temperature and humidity sensor 60, and when the temperature and humidity sensor 60 detects that the humidity inside the image capturing device reaches a set humidity threshold, the control device 70 controls the first electrode 21 and the second electrode 22 to be powered on.
It should be noted that, the specific material of the conductive stop 20 is not limited, but a deformable material such as conductive silicone is preferably adopted, and specifically, the material of the conductive stop 20 may be thermoplastic elastomer (TPE), thermoplastic polyurethane elastomer (TPU), thermoplastic rubber (TPR), or the like. The shape of the conductive stop 20 is not limited, and the shape of the conductive stop 20 matches the shape of the lens 40 in a specific application, for example, when the lens 40 is a spherical lens, the conductive stop 20 is a ring-shaped conductive stop.
In the embodiment of the invention, when the humidity in the image acquisition equipment reaches the set humidity threshold value, namely the fog-forming condition is reached, the anti-fog device works, the control device controls the first electrode and the second electrode to be electrified, the first electrode, the second electrode and the conductive light blocking ring form a closed loop, the conductive light blocking ring is equivalent to a resistor, and the conductive light blocking ring generates heat when the temperature is increased after being electrified so as to increase the temperature of the image acquisition equipment, so that the fog-forming phenomenon generated after the temperature of the image acquisition equipment is reduced can be effectively reduced, and the imaging quality of the image acquisition equipment can be further improved.
It is understood that the specific material of the transparent housing 10 is not limited, and may be plastic or glass, for example.
Referring to fig. 3, the connection between the conductive stop 20 and the fixing device 30 is not limited, for example, in a specific embodiment, the conductive stop 20 has a hook (not shown in the figure due to the view angle), and the fixing device 30 has a bayonet 31, and the hook is engaged with the bayonet. The specific manner of connecting the first electrode 21 and the second electrode 22 to the fixing device is not limited, and for example, the first electrode 21 and the second electrode 22 are both bonded to the fixing device 30 by a double-sided tape.
Preferably, as shown in fig. 2 and fig. 3, the first electrode 21 and the second electrode 22 are located between the conductive stop 20 and the fixing device 30, and in the process of clamping the conductive stop 20 to the fixing device 30, the conductive stop 20 is connected to the first electrode 21 and the second electrode 22 by crimping.
In a preferred embodiment of the present invention, when the temperature and humidity sensor 60 detects that the temperature inside the image capturing device reaches a set temperature threshold, the control device 70 controls the first electrode 21 and the second electrode 22 to be powered off.
It should be noted that, a specific temperature value of the set temperature threshold is not limited, and in specific implementation, the set temperature threshold generally refers to a temperature critical value that structures such as a main chip and a circuit board of the image capturing device can bear. When the temperature and humidity sensor 60 detects that the temperature inside the image capturing device reaches a set temperature threshold, the control device 70 controls the first electrode 21 and the second electrode 22 to be powered off, so that the reliability of each structural component of the image capturing device can be effectively protected.
Referring to fig. 2, in a preferred embodiment, a gap is formed between the conductive stop 20 and the lens 40. With such a design, after the conductive stop ring 20 is powered on to generate heat, the gap between the conductive stop ring 20 and the lens 40 is beneficial to heat dissipation of the conductive stop ring 20, so that image blurring can be prevented, and the imaging quality of the image acquisition device can be improved.
In the embodiment shown in fig. 2, the distance L is a gap between the conductive stop 20 and the lens 40, and the specific value of L is not limited, and may be, for example, 1mm to 2 mm.
In another preferred embodiment of the present invention, the conductive light blocking ring 20 is an interference fit with the transparent housing 10. By adopting the design, the conductive light blocking ring 20 can be tightly attached to the transparent outer cover 10, so that infrared light can be effectively blocked; in addition, the tightness of the pressing fit between the conductive stop ring and the first electrode and between the conductive stop ring and the second electrode is facilitated, and therefore the working quality of the anti-fog device is improved.
In specific implementation, the fixing device 30 is further provided with a conductive connector 50, and the conductive connector 50 is connected with the first electrode 21 and the second electrode 22 through wires and then connected with a power supply interface, so that on/off of a circuit is realized under the control of the control device. The lead is connected with the first electrode 21 and the second electrode 22 in a welding manner, the conductive connector 50 is connected with the lead in a crimping manner, and the power supply interface is a low-voltage power supply interface.
It is understood that the specific material of the first electrode 21 and the second electrode 22 is not limited, and may be, for example, silver or copper.
To sum up, when the image capturing apparatus provided in the embodiment of the present invention is in use, if the temperature and humidity sensor detects that the humidity inside the image capturing apparatus reaches the set humidity threshold, that is, the fogging condition, the anti-fogging device operates, the control device controls the first electrode and the second electrode to be powered on, the first electrode, the second electrode and the conductive light blocking ring form a closed loop, the conductive light blocking ring is equivalent to a resistor, and the conductive light blocking ring generates heat when the temperature rises after being powered on, so that the temperature of the image capturing apparatus rises, and the fogging phenomenon generated when the temperature of the image capturing apparatus drops can be effectively reduced; when the temperature and humidity sensor detects that the temperature in the image acquisition equipment reaches a set temperature threshold, the control device controls the first electrode and the second electrode to be powered off, and therefore the working safety of the image acquisition equipment is guaranteed. Therefore, the image acquisition equipment provided by the embodiment of the invention has the advantages that the fogging phenomenon can be effectively reduced, the quality of the acquired image can be greatly improved, and the image acquisition equipment has a simple structure, so that the manufacturing cost is lower, and the practicability is higher.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. The utility model provides an image acquisition equipment, its characterized in that, includes transparent dustcoat, anti-fog device, camera lens, fixing device, temperature and humidity sensor and controlling means, wherein:
the anti-fog device comprises a conductive light blocking ring, a first electrode and a second electrode which are respectively connected with the conductive light blocking ring;
the lens and the anti-fog device are respectively connected with the fixing device, and the conductive light blocking ring is sleeved outside the lens;
the transparent outer cover is covered outside the fixing device;
the control device is electrically connected with the temperature and humidity sensor, and controls the first electrode and the second electrode to be electrified when the temperature and humidity sensor detects that the humidity in the image acquisition equipment reaches a set humidity threshold value;
the conductive light blocking ring is in interference fit with the transparent outer cover;
a gap is reserved between the conductive stop ring and the lens;
the conductive light blocking ring is tightly attached to the transparent outer cover;
the material of electrically conductive light blocking circle is electrically conductive silica gel.
2. The image capturing device as claimed in claim 1, wherein the control device controls the first electrode and the second electrode to be powered off when the temperature and humidity sensor detects that the temperature inside the image capturing device reaches a set temperature threshold.
3. The image capturing apparatus according to claim 1, wherein a gap between the conductive stop ring and the lens is 1mm to 2 mm.
4. The image capturing device as claimed in claim 1, wherein the fixing device is further provided with a conductive connector, and the conductive connector is connected to the power supply interface after being connected to the first electrode and the second electrode respectively through wires.
5. The image capturing device as claimed in claim 1, wherein the fixing means is provided with a bayonet, and the conductive light blocking ring is provided with a hook, and the hook is engaged with the hook.
6. The image capturing device according to claim 1, wherein the first electrode and the second electrode are bonded to the fixing means by a double-sided adhesive tape, and/or wherein the conductive stop is connected to the first electrode and the second electrode by crimping.
7. The image capturing device according to any one of claims 1 to 6, wherein the shape of the conductive stop aperture matches the shape of the lens.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710058610.0A CN106851061B (en) | 2017-01-23 | 2017-01-23 | Image acquisition device |
| EP17845411.2A EP3488602B1 (en) | 2016-08-31 | 2017-08-29 | Devices and methods for detecting and removing vapor |
| PCT/CN2017/099534 WO2018041109A1 (en) | 2016-08-31 | 2017-08-29 | Deivces and methods for detecting and removing vapor |
| US16/285,155 US10928630B2 (en) | 2016-08-31 | 2019-02-25 | Devices and methods for detecting and removing vapor |
| US17/169,486 US11709357B2 (en) | 2016-08-31 | 2021-02-07 | Devices and methods for detecting and removing vapor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710058610.0A CN106851061B (en) | 2017-01-23 | 2017-01-23 | Image acquisition device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106851061A CN106851061A (en) | 2017-06-13 |
| CN106851061B true CN106851061B (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710058610.0A Active CN106851061B (en) | 2016-08-31 | 2017-01-23 | Image acquisition device |
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| Country | Link |
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| CN (1) | CN106851061B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018041109A1 (en) * | 2016-08-31 | 2018-03-08 | Zhejiang Dahua Technology Co., Ltd. | Deivces and methods for detecting and removing vapor |
| CN108650446A (en) * | 2018-06-01 | 2018-10-12 | 深圳市迪威泰实业有限公司 | The antifog, waterproof camera and image pickup method that low temperature uses |
| CN108718382B (en) * | 2018-08-07 | 2020-10-30 | 浙江大华技术股份有限公司 | Light blocking ring lifting mechanism and camera |
| CN111103263B (en) * | 2018-10-26 | 2022-01-21 | 宁波方太厨具有限公司 | Device for testing antifogging performance of glass coating |
| CN111103264B (en) * | 2018-10-26 | 2022-01-21 | 宁波方太厨具有限公司 | Method for testing antifogging performance of glass coating |
| CN110248060A (en) * | 2019-06-13 | 2019-09-17 | 惠州市德赛西威汽车电子股份有限公司 | A kind of method and camera module for preventing cam lens from hazing |
| CN112283510B (en) * | 2020-09-23 | 2022-06-07 | 浙江大华技术股份有限公司 | Camera device and installation component and base thereof |
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| KR20110068442A (en) * | 2009-12-16 | 2011-06-22 | 주식회사 오카스 | Heater for protecting frost of camera window and drive system thereof |
| KR101665390B1 (en) * | 2011-01-12 | 2016-10-12 | 한화테크윈 주식회사 | Housing assembly |
| CN204928977U (en) * | 2015-06-06 | 2015-12-30 | 深圳市韩光奥特电子有限公司 | Water -resistant fog intelligent recognition camera |
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| CN101169505A (en) * | 2006-10-27 | 2008-04-30 | 鸿富锦精密工业（深圳）有限公司 | Lens module |
| CN104238241A (en) * | 2013-06-14 | 2014-12-24 | 鸿富锦精密工业（深圳）有限公司 | Demisting device |
| CN204046700U (en) * | 2014-07-17 | 2014-12-24 | 深圳英飞拓科技股份有限公司 | The demist assembly of cover glass in picture pick-up device |
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| CN205386130U (en) * | 2016-03-10 | 2016-07-20 | 王登 | Anti -fogging endoscope head |
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| CN106851061A (en) | 2017-06-13 |
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