CN212255990U - Raindrop removing and water vapor removing lens for raindrop detection - Google Patents

Abstract

The embodiment of the utility model discloses raindrop detects removes raindrop and removes vapour lens, including first lens and can carry out the piece that generates heat that heats to first lens, still be equipped with raindrop detecting element on this first lens. The utility model discloses raindrop detection removes raindrop and removes vapour lens through set up raindrop detecting element on first lens to realize raindrop or vapour automated inspection under rain fog weather such as cold, moist, or rainy, remove the control that raindrop removed the vapour for follow-up automation and provide accurate detection control signal.

Description

Raindrop removing and water vapor removing lens for raindrop detection

The technical field is as follows:

the utility model relates to a lens for the module of making a video recording, especially a raindrop detects removes raindrop and removes vapour lens.

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:

for overcoming the problem that current module of making a video recording generally can't realize raindrop or steam automated inspection, the embodiment of the utility model provides a raindrop detects and removes raindrop and water vapour lens.

The utility model provides a raindrop detects removes raindrop and removes vapour lens, includes first lens and can carry out the piece that generates heat that heats to first lens, still is equipped with raindrop detecting element on this first lens.

The utility model discloses raindrop detection removes raindrop and removes vapour lens through set up raindrop detecting element on first lens to realize raindrop or vapour automated inspection under rain fog weather such as cold, moist, or rainy, remove the control that raindrop removed the vapour for follow-up automation and provide accurate detection control signal.

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 described 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 without creative efforts.

Fig. 1 is a first schematic structural diagram of an embodiment of a raindrop detection element according to the present invention;

fig. 2 is a schematic structural diagram of a raindrop detection element according to an embodiment of the present invention;

fig. 3 is a front view of an embodiment of the raindrop detection element of the present invention;

fig. 4 is a cross-sectional view of an embodiment of the raindrop detection element of the present invention;

FIG. 5 is an enlarged view of portion A of FIG. 4;

FIG. 6 is a cross-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 an embodiment of the raindrop detection, raindrop removal, and vapor removal lens of the present invention;

FIG. 9 is a second perspective view of an embodiment of a raindrop-removing and moisture-removing lens for raindrop detection according to 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 the raindrop detection, raindrop removal, and vapor removal lens of the present invention;

FIG. 14 is a cross-sectional view of FIG. 13;

fig. 15 is a schematic structural diagram of an embodiment of the camera module of the present invention;

FIG. 16 is an exploded view of FIG. 15;

fig. 17 is a schematic structural view of another embodiment of the camera module of the present invention;

FIG. 18 is an exploded view of FIG. 17;

fig. 19 is a schematic structural view of another embodiment of the camera module of the present invention;

fig. 20 is a schematic diagram of a principle framework of a 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 according to the present invention.

The specific implementation mode is as follows:

in order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to further explain the present invention in detail. 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 terms are used for distinguishing only when they do express the ordinal order in context.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-3, the embodiment of the utility model discloses raindrop detecting element 1, including the component body, the printing has electrode pair (11, 12) that the interval set up on the component body, and when the component body was cooperated with the camera module, whether there was raindrop or the sensing signal of steam on acquireing the camera module through electrode pair (11, 12) that the interval set up.

The utility model discloses raindrop detecting element or module of making a video recording, when water droplet or steam condense on the electrode pair that the interval set up, can change the signal of telecommunication between the electrode pair that the interval set up to whether form the sensing signal who has raindrop or steam, realize raindrop or steam automated inspection under rain fog weather such as cold, moist, or rain, remove the control that the raindrop removed steam for follow-up module of making a video recording is automatic and provide accurate detection control signal.

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. 8-10, the embodiment of the present invention further discloses a camera module, which at least comprises an optical lens, and the raindrop detection element is installed in the optical lens.

The utility model discloses raindrop detecting element or module of making a video recording, when water droplet or steam condense on the electrode pair that the interval set up, can change the signal of telecommunication between the electrode pair that the interval set up to whether form the sensing signal who has raindrop or steam, realize raindrop or steam automated inspection under rain fog weather such as cold, moist, or rain, remove the control that the raindrop removed steam for follow-up module of making a video recording is automatic and provide accurate detection control signal.

As shown in fig. 8, the embodiment of the utility model also discloses a raindrop detects and removes raindrop and vapor lens, including first lens 2 and can carry out the piece 3 that generates heat that heats to first lens 2, still be equipped with raindrop detecting element 1 on this first lens 2.

The utility model discloses raindrop detection removes raindrop and removes vapour lens through set up raindrop detecting element on first lens to realize raindrop or vapour automated inspection under rain fog weather such as cold, moist, or rainy, remove the control that raindrop removed the vapour for follow-up automation and provide accurate detection control signal.

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 utility model also discloses a raindrop detects self-heating and removes raindrop and vapor camera module, include lens cone 4 at least, locate the first lens 2 of lens cone 4 front end, cooperate with the 4 front ends of lens cone in order to lock the gland 5 on lens cone 4 with first lens 2 and can carry out the generate heat piece 3 that heats to first lens 2, still be equipped with raindrop detecting element 1 on this first lens 2.

The utility model discloses raindrop detection self-heating removes raindrop and steam module of making a video recording through set up raindrop detecting element on first lens to realize raindrop or steam automated inspection under rain fog weather such as cold, moist, or rain, remove the control that the raindrop removed steam for follow-up automation and provide accurate detection control signal.

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 utility model also discloses an external raindrop detects self-heating and removes raindrop and vapor module of making a video recording, include lens cone 4 at least, locate the first lens 2 of lens cone 4 front end, cooperate with the 4 front ends of lens cone in order to lock the gland 5 on lens cone 4 with first lens 2 and can carry out the heating plate 3 that heats to first lens 2, this 2 object plane side outer surface of first lens is equipped with raindrop detecting element 1.

The embodiment of the utility model provides an external formula raindrop detects self-heating and removes raindrop and steam module of making a video recording through set up raindrop detecting element on first lens to realize raindrop or steam automated inspection under rain and fog weather such as cold, moist, or rain, remove the raindrop for follow-up automation and remove the control that steam provided accurate detection control signal.

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 utility model also discloses a gland formula raindrop detects self-heating and removes raindrop and vapor module of making a video recording, include lens cone 4 at least, locate the first lens 2 of lens cone 4 front end, and cooperate with the 4 front ends of lens cone in order to lock first lens 2 gland 5 on lens cone 4, still be equipped with a glass substrate 6 between gland 5 preceding terminal surface and the first lens 2, the surface of this glass substrate 6 is equipped with raindrop detecting element 1, the internal surface of glass substrate 6 is equipped with the piece 3 that generates heat that can heat it.

The utility model discloses gland formula raindrop detects self-heating and removes raindrop and steam module of making a video recording through setting up raindrop detecting element on the glass substrate before first lens to realize raindrop or steam automated inspection under rain and fog weather such as cold, moist, or rain, remove the control that the raindrop removed steam for follow-up automation and provide accurate detection control signal.

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 utility model provides a still disclose a control circuit, this control circuit cooperates with the module of making a video recording of fig. 14, 18, 19 for when raindrop detecting element 1 detects 2 surfaces of first lens, or 6 surfaces of glass substrate have raindrop or steam, make 3 automatic start-ups heats of piece that generates heat of the module of making a video recording, thereby realize the function that removes the raindrop and remove steam automatically.

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 to be construed as limiting the invention to the precise embodiments disclosed herein. All with the utility model discloses a method, structure etc. are similar, the same, or to the utility model discloses make a plurality of technological deductions or replacement under the design prerequisite, all should regard as the utility model discloses a protection scope.

Claims (10)

1. The utility model provides a raindrop detects removes raindrop and removes vapour lens, includes first lens and can carry out the piece that generates heat that heats to first lens, its characterized in that still is equipped with raindrop detecting element on this first lens.

2. The raindrop detection and raindrop removal lens according to claim 1, wherein the raindrop detection element is provided on an object plane side of the first lens.

3. The raindrop detection and raindrop removal lens of claim 2, wherein the first lens is a unitary lens or a cemented split compound lens.

4. The raindrop detection and raindrop removal lens according to claim 1, wherein the first lens is a split cemented compound lens, and the raindrop detection element is disposed between cemented surfaces of the compound lens.

5. The raindrop detection and raindrop removal lens according to claim 4, wherein the lens assembly includes a front lens and a rear lens, wherein an annular groove is formed in a side of the front lens opposite to the bonding surface of the rear lens, and the raindrop detection element is disposed in the annular groove.

6. The raindrop detection, raindrop removal, and moisture removal lens of any one of claims 1-5, wherein the heater sheet is disposed on the first lens side.

7. The raindrop detection and raindrop removal lens according to claim 6, wherein the raindrop detection element includes an element body, the element body is printed with electrode pairs arranged at intervals, and when the element body is matched with the first lens, the sensing signal indicating whether raindrops or water vapor exist on the camera module is obtained through the electrode pairs arranged at intervals.

8. The raindrop detection and raindrop removal lens according to claim 7, wherein when raindrops or moisture are present, the electrode pairs spaced apart from each other 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.

9. The raindrop detection and raindrop removal lens as claimed in claim 8, wherein the element body is annular.

10. The raindrop detection and raindrop removal lens according to claim 9, wherein the element body has a planar or arc-shaped cross section, and the electrode pairs are spaced on the planar or arc-shaped cross section.

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