CN111812921A - Raindrop detection element and camera module applying same - Google Patents
Raindrop detection element and camera module applying same Download PDFInfo
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- CN111812921A CN111812921A CN202010508284.0A CN202010508284A CN111812921A CN 111812921 A CN111812921 A CN 111812921A CN 202010508284 A CN202010508284 A CN 202010508284A CN 111812921 A CN111812921 A CN 111812921A
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- raindrop detection
- raindrop
- detection element
- camera module
- lens
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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
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/56—Accessories
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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
- G03B29/00—Combinations of cameras, projectors or photographic printing apparatus with non-photographic non-optical apparatus, e.g. clocks or weapons; Cameras having the shape of other objects
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Abstract
This application is a divisional application with application number 202010361907.6. The embodiment of the invention discloses a raindrop detection element which comprises an element body, wherein electrode pairs arranged at intervals are printed on the element body, and when the element body is combined with a camera module, sensing signals of whether raindrops or water vapor exist on the camera module or not are acquired through the electrode pairs arranged at intervals. On the other hand, the embodiment of the invention also provides a camera module. According to the raindrop detection element or the camera module provided by the embodiment of the invention, when water drops or water vapor is condensed on the electrode pairs arranged at intervals, the electric signals between the electrode pairs arranged at intervals can be changed, so that a sensing signal whether raindrops or water vapor exist is formed, automatic detection of the raindrops or the water vapor is realized in rainy and foggy days such as cold weather, damp weather or rain weather, and an accurate detection control signal is provided for the control of automatically removing the raindrops and the water vapor of the subsequent camera module.
Description
The application is a divisional application, the original application is the application number of 202010361907.6, the application date is 2020, 04, 30 days, and the invention name is 'raindrop detection automatic heating raindrop removing and steam removing camera module'.
The technical field is as follows:
the present invention relates to a detection device and a camera module, and more particularly to a raindrop detection device and a camera module using the same.
Background art:
present outdoor control is with module of making a video recording, or external on-vehicle module of making a video recording, generally can't realize raindrop or steam automated inspection under rain fog weather such as cold, humidity, or rain to reach the effect that removes the raindrop and remove steam automatically.
The invention content is as follows:
in order to overcome the problem that the existing camera module generally cannot realize automatic detection of raindrops or water vapor, the embodiment of the invention provides a raindrop detection element on one hand.
A raindrop detection element comprises an element body, wherein electrode pairs are printed on the element body at intervals, and when the element body is combined with a camera module, sensing signals of raindrops or water vapor are acquired through the electrode pairs at intervals.
On the other hand, the embodiment of the invention also provides a camera module.
A camera module at least comprises an optical lens, and the raindrop detection element is installed in the optical lens.
According to the raindrop detection element or the camera module provided by the embodiment of the invention, when water drops or water vapor is condensed on the electrode pairs arranged at intervals, the electric signals between the electrode pairs arranged at intervals can be changed, so that a sensing signal whether raindrops or water vapor exist is formed, automatic detection of the raindrops or the water vapor is realized in rainy and foggy days such as cold weather, damp weather or rain weather, and an accurate detection control signal is provided for the control of automatically removing the raindrops and the water vapor of the subsequent camera module.
Description of the drawings:
in order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a first schematic structural diagram of a raindrop detection element according to an embodiment of the present invention;
FIG. 2 is a second schematic structural view of an embodiment of a raindrop detection element according to the present invention;
FIG. 3 is a front view of an embodiment of a raindrop detection element of the present invention;
fig. 4 is a sectional view of an embodiment of a raindrop detection element of the present invention;
FIG. 5 is an enlarged view of portion A of FIG. 4;
FIG. 6 is a sectional view of another embodiment of the raindrop detection element of the present invention
FIG. 7 is an enlarged view of portion B of FIG. 6;
FIG. 8 is a first perspective view of a raindrop detection and moisture removal lens embodiment of the present invention;
FIG. 9 is a second perspective view of an embodiment of a raindrop detection and moisture removal lens of the present invention;
FIG. 10 is a cross-sectional view of FIG. 9;
FIG. 11 is the first exploded view of FIG. 9;
FIG. 12 is a second exploded view of FIG. 9;
FIG. 13 is a perspective view of another embodiment of a raindrop detection and moisture removal lens of the present invention;
FIG. 14 is a cross-sectional view of FIG. 13;
FIG. 15 is a schematic structural diagram of a camera module according to an embodiment of the present invention;
FIG. 16 is an exploded view of FIG. 15;
FIG. 17 is a schematic structural diagram of a camera module according to another embodiment of the present invention;
FIG. 18 is an exploded view of FIG. 17;
FIG. 19 is a schematic structural diagram of a camera module according to another embodiment of the present invention;
FIG. 20 is a schematic block diagram of the control circuit of the present invention;
FIG. 21 is a schematic diagram of the detection circuit of the present invention;
fig. 22 is a schematic diagram of a driving circuit of the present invention.
The specific implementation mode is as follows:
in order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
When embodiments of the present invention refer to the ordinal numbers "first", "second", etc., it should be understood that the words are used for distinguishing between them unless the context clearly dictates otherwise.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 3, an embodiment of the present invention discloses a raindrop detection element 1, which includes an element body, electrode pairs (11, 12) arranged at intervals are printed on the element body, and when the element body is combined with an image capture module, a sensing signal indicating whether raindrops or water vapor are present on the image capture module is obtained through the electrode pairs (11, 12) arranged at intervals.
According to the raindrop detection element or the camera module provided by the embodiment of the invention, when water drops or water vapor is condensed on the electrode pairs arranged at intervals, the electric signals between the electrode pairs arranged at intervals can be changed, so that a sensing signal whether raindrops or water vapor exist is formed, automatic detection of the raindrops or the water vapor is realized in rainy and foggy days such as cold weather, damp weather or rain weather, and an accurate detection control signal is provided for the control of automatically removing the raindrops and the water vapor of the subsequent camera module.
Further, as a preferred embodiment of the present invention, but not limited thereto, when raindrops or water vapor exists, the electrode pairs (11, 12) spaced apart from each other on the element body output low-level sensing signals; when no raindrop or water vapor exists, high-level sensing signals are output between the electrode pairs (11, 12) arranged on the element body at intervals. Simple structure detects accurately.
Still further, as a preferred embodiment of the present invention, but not limited thereto, the electrode pair includes two wires arranged in parallel. The two wires can be two capacitance plates with potential difference or ITO conductive strips.
Still further, as a preferred embodiment of the present solution, but not limited thereto, the element body is annular. Simple structure can conveniently cooperate with the camera module.
Further, as a preferable embodiment of the present invention, but not limited thereto, the cross section of the element body is planar or arc-shaped, and the electrode pairs (11, 12) are spaced on the planar or arc surface. Simple structure can install raindrop detecting element in the object plane side of the first lens of the module of making a video recording, or on the annular groove between the object plane side of first lens and the image plane side, or make a video recording in the module gland and lie in the glass substrate lateral surface before first lens, realizes multiple installation matching mode, and adaptability is better.
Still further, as a preferred embodiment of the present invention, but not limited thereto, the element body is a flexible transparent substrate layer. In this embodiment, the flexible transparent substrate layer includes, but is not limited to, a PET film layer. An ITO conductive film covers the substrate layer, and the ITO conductive film is etched to form an ITO conductive bar; or the substrate layer is provided with a touch film, and the touch film is provided with a nano wire.
Still further, as a preferable embodiment of the present invention, but not limited thereto, the pair of electrodes (11, 12) is embedded on the element body and flush with the upper surface of the element body. The structure is simple.
Further, as a preferred embodiment of the present invention, but not limited thereto, the overall thickness of the element body is 0.6 to 1 mm. Simple structure, the installation does not influence the product volume.
As shown in fig. 8 to 10, an embodiment of the present invention further discloses a camera module, which at least includes an optical lens, and the raindrop detection element is installed in the optical lens.
According to the raindrop detection element or the camera module provided by the embodiment of the invention, when water drops or water vapor is condensed on the electrode pairs arranged at intervals, the electric signals between the electrode pairs arranged at intervals can be changed, so that a sensing signal whether raindrops or water vapor exist is formed, automatic detection of the raindrops or the water vapor is realized in rainy and foggy days such as cold weather, damp weather or rain weather, and an accurate detection control signal is provided for the control of automatically removing the raindrops and the water vapor of the subsequent camera module.
As shown in fig. 8, the embodiment of the present invention further discloses a raindrop detection and moisture removal lens, which includes a first lens 2 and a heating sheet 3 capable of heating the first lens 2, wherein the first lens 2 is further provided with a raindrop detection element 1.
According to the lens for removing raindrops and water vapor in raindrop detection, the raindrop detection element is arranged on the first lens, so that automatic raindrop or water vapor detection is realized in rainy and foggy days such as cold weather, humid weather or rainy weather, and accurate detection control signals are provided for the subsequent control of automatically removing raindrops and water vapor.
Further, as shown in fig. 13 and 14, the raindrop detection element 1 is provided on the object surface side of the first lens 2 as a preferred embodiment of the present embodiment without limitation. Simple structure, simple to operate can realize raindrop or steam automated inspection accurately.
Still further, as a preferred embodiment of the present invention, but not limited thereto, as shown in fig. 13 and 14, the first lens 2 is an integral lens, or the first lens 2 is a combined lens formed by splitting and gluing. Simple structure can realize raindrop or steam automated inspection accurately.
Further, as a preferred embodiment of the present embodiment, but not limited thereto, as shown in fig. 8 to 12, the first lens 2 is a split cemented combination lens, and the raindrop detection element 1 is provided between cemented surfaces of the combination lens. Simple structure, raindrop detecting element installs compacter, can accurately realize raindrop or steam automated inspection.
Still further, as a preferred embodiment of the present invention, but not limited thereto, as shown in fig. 8 to 12, the combined lens includes a front lens 21 and a rear lens 22, as shown in fig. 11, an annular groove 210 is formed on a side of the front lens 21 opposite to the bonding surface of the rear lens 22, and the raindrop detection element 1 is disposed on the annular groove 210. Simple structure, raindrop detecting element simple to operate, the structure is compacter, can accurately realize raindrop or steam automated inspection.
Still further, as a preferred embodiment of the present embodiment, but not limited thereto, as shown in fig. 8 to 14, the heat patch is provided on the image plane side of the first lens 2. Simple structure conveniently carries out heat treatment to first lens.
As shown in fig. 15, the embodiment of the present invention further discloses an automatic heating raindrop-removing and moisture-removing camera module for raindrop detection, which at least includes a lens barrel 4, a first lens 2 disposed at the front end of the lens barrel 4, a pressing cover 5 matched with the front end of the lens barrel 4 to lock the first lens 2 on the lens barrel 4, and a heating sheet 3 capable of heating the first lens 2, wherein the first lens 2 is further provided with a raindrop detection element 1.
According to the automatic heating, raindrop removing and steam removing camera module for raindrop detection, provided by the embodiment of the invention, the raindrop detection element is arranged on the first lens, so that automatic raindrop or steam detection is realized in rainy and foggy days such as cold weather, humid weather or rain, and accurate detection control signals are provided for the subsequent control of automatically removing raindrops and steam.
Further, as a preferred embodiment of the present embodiment but not limited thereto, as shown in fig. 15, the front end of the lens barrel 4 is large, the rear end is small, the front end of the lens barrel 4 is concavely provided with an accommodating cavity matched with the first lens 2, a second wiring groove 42 penetrating through the accommodating cavity is disposed inside the accommodating cavity and near the outer side wall of the accommodating cavity, a first wiring groove 41 is disposed on the upper side of the outer side wall of the accommodating cavity, and the first wiring groove 41 and the second wiring groove 42 respectively extend along the optical axis direction of the camera module. The first wiring groove 41 is used for a wiring terminal for electrically connecting the raindrop detection element 1 to penetrate out of the first wiring groove 41; and a second wiring groove 42 through which a wiring terminal for electrically connecting the heat generating sheet 3 is inserted. Simple structure, straight line convenience and beautiful appearance.
Still further, as a preferred embodiment of the present embodiment, but not limited thereto, as shown in fig. 15, the first lens 2 is a split cemented combination lens, and the raindrop detection element 1 is provided between cemented surfaces of the combination lens. Simple structure, raindrop detecting element installs compacter, can accurately realize raindrop or steam automated inspection.
Further, as a preferred embodiment of the present invention but not limited thereto, as shown in fig. 11, the combined lens 2 includes a front lens 21 and a rear lens 22, an annular groove 210 is formed on a side of the front lens 21 opposite to the bonding surface of the rear lens 22, and the raindrop detection element 1 is disposed on the annular groove 210. Simple structure, raindrop detecting element simple to operate, the structure is compacter, can accurately realize raindrop or steam automated inspection.
As shown in fig. 18, the embodiment of the present invention further discloses an external raindrop detection automatic heating raindrop-removing and moisture-removing camera module, which at least includes a lens barrel 4, a first lens 2 disposed at the front end of the lens barrel 4, a pressing cover 5 matched with the front end of the lens barrel 4 to lock the first lens 2 on the lens barrel 4, and a heating sheet 3 capable of heating the first lens 2, wherein an outer surface of an object plane side of the first lens 2 is provided with a raindrop detection element 1.
According to the external raindrop detection automatic heating raindrop and water vapor removal camera module, the raindrop detection element is arranged on the first lens, so that raindrop or water vapor automatic detection is realized in rainy and foggy days such as cold, humid or rainy days, and accurate detection control signals are provided for the control of subsequently automatically removing raindrops and water vapor.
Further, as a preferred embodiment of the present embodiment, but not limited thereto, as shown in fig. 18 and 19, the first lens 2 is a one-piece lens, and the heater chip 3 is provided on the image plane side of the first lens 2.
As shown in fig. 19, the embodiment of the present invention further discloses a press cover type raindrop detection automatic heating raindrop removal and moisture removal camera module, which at least includes a lens barrel 4, a first lens 2 disposed at the front end of the lens barrel 4, and a press cover 5 matched with the front end of the lens barrel 4 to lock the first lens 2 on the lens barrel 4, a glass substrate 6 is further disposed between the front end surface of the press cover 5 and the first lens 2, the outer surface of the glass substrate 6 is provided with a raindrop detection element 1, and the inner surface of the glass substrate 6 is provided with a heating sheet 3 capable of heating the glass substrate.
According to the press cover type raindrop detection automatic heating, raindrop removal and steam removal camera module, the raindrop detection element is arranged on the glass substrate in front of the first lens, so that raindrop or steam automatic detection is realized in rainy and foggy weather such as cold weather, humid weather or rain, and accurate detection control signals are provided for the control of automatic raindrop removal and steam removal.
Further, as a preferred embodiment of the present embodiment, but not limited thereto, a spacer is further disposed between the glass substrate 6 and the first lens 2.
Still further, the embodiment of the present invention further discloses a control circuit, which is matched with the camera module shown in fig. 14, 18 and 19, and is used for automatically starting and heating the heating sheet 3 of the camera module when the raindrop detection element 1 detects that raindrops or water vapor exist on the outer surface of the first lens 2 or on the outer surface of the glass substrate 6, so as to realize the function of automatically removing raindrops and water vapor.
Further, as a preferred implementation of this embodiment and not by way of limitation, as shown in fig. 20-22, the control circuit includes:
the input end of the detection circuit is electrically connected with the raindrop detection element 1, and the raindrop detection element 1 is used for acquiring a sensing signal whether raindrops or moisture exist on the first lens or outside the first lens;
the output end of the driving circuit is electrically connected with the heating sheet 3 and is used for driving the heating sheet 3 to stop/start;
and the microprocessor is connected with the detection circuit and the driving circuit and is used for controlling the driving circuit according to the sensing signal. When raindrop detecting element 1 detects that 2 surfaces of first lens, or 6 surfaces of glass substrate have raindrops or steam, make 3 automatic start-ups heats of piece that generate heat of module of making a video recording to realize removing the function that the raindrop removed steam automatically.
Still further, as a preferred implementation manner of this embodiment but not limited thereto, as shown in fig. 21, the detection circuit includes an operational amplifier U7, an output pin OUTA of the operational amplifier U7 is connected to the acquisition terminal raidrop Detect of the rainfall sensing signal through line resistors R18 and R19, and a capacitor C34 is connected in parallel to two ends of the resistor R18; the output pin OUTA of the operational amplifier U7 is connected to the microprocessor U6 for feeding back the first signal Dout of the presence or absence of raindrops, and the non-inverting pin INA + of the operational amplifier U7 is connected to the microprocessor U6 for feeding back the second signal Aout of the magnitude of rainfall; the output pin of the operational amplifier U7 is connected with the low potential end of an LED indicator light LED1, the negative phase pin INA-of the operational amplifier U7 is grounded through a sliding resistor R20, and the connecting point of the line resistor R18 and the line resistor R19 is connected with the sliding arm end of the sliding resistor R20 to realize feedback regulation. .
Still further, as a preferred implementation manner of this embodiment without limitation, as shown in fig. 22, the driving circuit includes a transistor Q3, resistors R13 and R14, a field effect transistor U5, and a plurality of filter capacitors, a source of the field effect transistor U5 is connected to a dc source, a drain thereof is used as an electrical output terminal of the driving circuit, and the plurality of filter capacitors are connected in parallel; the resistor R13 and the resistor R14 are connected in series and then connected between a source electrode and a ground end of the field effect transistor U5, a connecting point of the resistor R13 and the resistor R14 is connected with a grid electrode of the field effect transistor U5, the triode Q3 is connected with the resistor R14 in parallel, a base electrode of the triode Q3 is connected with the microprocessor, two ends of the resistor R13 are connected with a voltage stabilizing tube D4 in parallel, and the triode Q3 is controlled by a PWM signal of the microprocessor to realize on/off.
The working principle of the control circuit is as follows:
after the circuit is powered on, the output of the raindrop detection element 1 continuously generates a high level signal, the high level signal is captured by the detection circuit, the LED indicator lamp is turned off, and the microprocessor judges that no raindrop exists at the moment; when raindrops are on the first lens or outside the first lens, due to the capacity sensing characteristic of the raindrop detection element 1, the rainfall sensing signal is changed from high level to low level, the LED indicating lamp is lightened, the microprocessor responds immediately, and the heating piece is started to heat the first lens.
In specific implementation, the microprocessor acquires a first signal Dout from the output end of the operational amplifier, and directly reflects whether raindrops exist at present; obtaining a second signal Aout from the non-inverting leg of the operational amplifier, wherein the second signal Aout reflects the variation of the first signal Dout synchronously, and the peak value of the second signal Aout is smaller and can be identified by the microprocessor; when the rain condition lasts, the microprocessor adjusts the frequency of the PWM signal output by the microprocessor, so that the effective heating power is improved, and raindrops or water vapor is not accumulated on the first lens 2 or the glass substrate 6 of the camera module.
The foregoing is illustrative of one or more embodiments provided in connection with the detailed description and is not intended to limit the practice of the invention to the particular forms disclosed. Similar or identical methods, structures and the like as those of the present invention or several technical deductions or substitutions made on the premise of the conception of the present invention should be considered as the protection scope of the present invention.
Claims (9)
1. A raindrop detection element comprises an element body and is characterized in that electrode pairs are printed on the element body at intervals, and when the element body is combined with a camera module, sensing signals of whether raindrops or water vapor exist on the camera module or not are acquired through the electrode pairs at intervals.
2. The raindrop detection element according to claim 1, wherein when raindrops or moisture exist, the electrode pairs arranged at intervals on the element body output low-level sensing signals; when no raindrop or water vapor exists, the electrode pairs arranged on the element body at intervals output high-level sensing signals.
3. The raindrop detection element according to claim 1 or 2, wherein the electrode pair includes two conductive wires arranged in parallel.
4. The raindrop detection element according to claim 1 or 2, wherein the element body is annular.
5. The raindrop detection element according to claim 1 or 2, wherein the cross section of the element body is planar or arc-surface-shaped, and the electrode pairs are arranged at intervals on the planar or arc surface.
6. The raindrop detection element according to claim 1 or 2, wherein the element body is a flexible transparent substrate layer.
7. The raindrop detection element according to claim 3, wherein the electrode pair is embedded in the element body and is flush with an upper surface of the element body.
8. The raindrop detection element according to claim 3, wherein an entire thickness of the element body is 0.6 to 1 mm.
9. The utility model provides a module of making a video recording, includes optical lens at least, its characterized in that: the raindrop detection element according to any one of claims 1 to 8 is mounted on an optical lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010508284.0A CN111812921B (en) | 2020-04-30 | 2020-04-30 | Raindrop detection element and camera module applying same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010361907.6A CN111474810A (en) | 2020-04-30 | 2020-04-30 | Raindrop detection automatic heating raindrop removing and steam removing camera module |
| CN202010508284.0A CN111812921B (en) | 2020-04-30 | 2020-04-30 | Raindrop detection element and camera module applying same |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010361907.6A Division CN111474810A (en) | 2020-04-30 | 2020-04-30 | Raindrop detection automatic heating raindrop removing and steam removing camera module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111812921A true CN111812921A (en) | 2020-10-23 |
| CN111812921B CN111812921B (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210408701.3A Active CN114779558B (en) | 2020-04-30 | 2020-04-30 | Gland type automatic heating camera module for raindrop detection |
| CN202010508284.0A Active CN111812921B (en) | 2020-04-30 | 2020-04-30 | Raindrop detection element and camera module applying same |
| CN202010361907.6A Pending CN111474810A (en) | 2020-04-30 | 2020-04-30 | Raindrop detection automatic heating raindrop removing and steam removing camera module |
| CN202010508314.8A Active CN111812919B (en) | 2020-04-30 | 2020-04-30 | External raindrop detection automatic heating raindrop removing and steam removing camera module |
| CN202010508312.9A Active CN111812918B (en) | 2020-04-30 | 2020-04-30 | Press cover type raindrop detection automatic heating raindrop removing and steam removing camera module |
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| CN202210408701.3A Active CN114779558B (en) | 2020-04-30 | 2020-04-30 | Gland type automatic heating camera module for raindrop detection |
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| CN202010361907.6A Pending CN111474810A (en) | 2020-04-30 | 2020-04-30 | Raindrop detection automatic heating raindrop removing and steam removing camera module |
| CN202010508314.8A Active CN111812919B (en) | 2020-04-30 | 2020-04-30 | External raindrop detection automatic heating raindrop removing and steam removing camera module |
| CN202010508312.9A Active CN111812918B (en) | 2020-04-30 | 2020-04-30 | Press cover type raindrop detection automatic heating raindrop removing and steam removing camera module |
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| Publication number | Publication date |
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| CN111812919A (en) | 2020-10-23 |
| CN114779558A (en) | 2022-07-22 |
| CN111812918B (en) | 2022-07-05 |
| CN111474810A (en) | 2020-07-31 |
| CN114779558B (en) | 2024-04-09 |
| CN111812918A (en) | 2020-10-23 |
| CN111812919B (en) | 2022-07-05 |
| CN111812921B (en) | 2023-02-28 |
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