CN215871552U

CN215871552U - Camera device

Info

Publication number: CN215871552U
Application number: CN202121879157.8U
Authority: CN
Inventors: 徐欢
Original assignee: Hangzhou Tuya Information Technology Co Ltd
Current assignee: Hangzhou Tuya Information Technology Co Ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2022-02-18
Anticipated expiration: 2031-08-11

Abstract

The utility model belongs to the technical field of cameras, and particularly relates to a camera device which comprises a light supplementing lamp, a lamp panel, a lens, a circuit board, electrochromic glass and a color-changing driving circuit, wherein the lamp panel is provided with a first opening structure, the light supplementing lamp is arranged on one side of the lamp panel, and the light supplementing lamp is positioned around the first opening structure; the circuit board is positioned on one side, away from the light supplement lamp, of the lamp panel, one end of the lens is fixed on the circuit board, the circuit board comprises a control circuit, and the control circuit is used for controlling the light supplement lamp to emit light; the electrochromic glass is positioned on one side, away from the lamp panel, of the light supplement lamp, and is provided with a second opening structure, so that the other end of the lens can extend and penetrate through the first opening structure and the second opening structure; the color-changing driving circuit is used for controlling the electrochromic glass to work or stop working so that light emitted by the light supplement lamp can display red light or white light through the electrochromic glass. So that the camera device can shoot color images within twenty-four hours, and has better heat dissipation effect.

Description

Camera device

Technical Field

The utility model belongs to the technical field of cameras, and particularly relates to a camera device.

Background

With the wide and deep application of security surveillance cameras, the high-definition imaging technology, the high-definition fog-penetrating function, the infrared detection locking function, the day-night conversion infrared camera function and the like of gun cameras are widely used in television surveillance projects. The day and night conversion infrared camera shooting function of the gun type camera enables the camera to detect infrared rays to realize optical filter switching in a day and night conversion mode. The problem of frequent day and night conversion of a common day and night type camera is solved.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problem of providing a camera device, and improves the working efficiency of day-night conversion.

In order to solve the technical problems, the utility model adopts a technical scheme that: the provided camera device comprises a light supplement lamp, a lamp panel, a lens, a circuit board, electrochromic glass and a color-changing driving circuit, wherein the lamp panel is provided with a first opening structure, the light supplement lamp is arranged on one side of the lamp panel, and the light supplement lamp is positioned around the first opening structure; the circuit board is positioned on one side, away from the light supplement lamp, of the lamp panel, one end of the lens is fixed on the circuit board, the circuit board comprises a control circuit, and the control circuit is used for controlling the light supplement lamp to emit light; the electrochromic glass is positioned on one side, away from the lamp panel, of the light supplement lamp, and is provided with a second opening structure, so that the other end of the lens can extend and penetrate through the first opening structure and the second opening structure; the color-changing driving circuit is used for controlling the electrochromic glass to work or stop working so that light emitted by the light supplement lamp can display red light or white light through the electrochromic glass.

The utility model has the beneficial effects that: different from the situation in the prior art, the camera device in the embodiment of the utility model is provided with the electrochromic glass and the color-changing driving circuit, so that the color-changing driving circuit can control the color of the electrochromic glass, the light supplementing lamp forms red light or white light after penetrating through the electrochromic glass, the requirement of the camera device on the light of twenty-four hours of working in the daytime and at night can be controlled, and the camera device can shoot color images at night after controlling the light through controlling the electrochromic glass. In the embodiment of the utility model, the number of the light supplement lamps can be reduced by arranging the electrochromic glass, so that the light supplement lamps do not need to be additionally arranged, the situation that the light supplement lamps are arranged on the lamp panel more densely to influence the heat dissipation of the circuit board can be improved, the heat dissipation effect of the circuit board is improved, and the heat dissipation effect of the camera device is further improved. Meanwhile, in the embodiment of the utility model, an infrared lamp is not required to be arranged, so that the control circuit of the embodiment of the utility model does not need to be provided with an additional circuit to control the infrared lamp, the complexity of the control circuit can be reduced, the wiring effect of the circuit board is improved, and the heat dissipation effect of the control circuit can be further improved. In the embodiment of the utility model, the electrochromic glass is provided with the second opening structure, so that the lens can pass through the second opening structure, the electrochromic glass cannot shield the lens, and the shooting effect of the lens cannot be influenced when the electrochromic glass works or stops working.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of an imaging device according to the present invention;

FIG. 2 is a schematic side view of the electrochromic glass, the lamp panel and the circuit board of the camera device of the present invention;

FIG. 3 is a schematic view of the light supplement lamp and the lamp panel of the camera device according to the present invention;

fig. 4 is a circuit diagram of a control circuit of the image pickup apparatus of the present invention;

FIG. 5 is a schematic of the structure of the logic AND gate chip of the present invention;

fig. 6 is a schematic view of the structure of the electrochromic glazing of the utility model.

10, a light supplement lamp; 20. a lamp panel; 21. a first open cell structure; 30. a lens; 40. a circuit board; 50. electrochromic glass; 60. a color-changing drive circuit; 41. a feedback circuit; 42. a logic AND gate chip; 51. a first substrate; 52. a first electrode layer; 53. an ion storage layer; 54. an electrolyte layer; 55. an electrochromic layer; 56. a second electrode layer; 57. a second substrate; 501. a second open cell structure.

Detailed Description

In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples.

As shown in fig. 1, fig. 2 and fig. 3, the present embodiment provides an image pickup apparatus, including a light supplement lamp 10, a lamp panel 20, a lens 30, a circuit board 40, electrochromic glass 50 and a color-changing driving circuit 60, where the lamp panel 20 is provided with a first opening structure 21, the light supplement lamp 10 is provided at one side of the lamp panel 20, and the light supplement lamp 10 is located around the first opening structure 21; the circuit board 40 is located on a side of the lamp panel 20 away from the light supplement lamp 10, one end of the lens 30 is fixed to the circuit board 40, and the circuit board 40 includes a control circuit for controlling the light supplement lamp 10 to emit light; the electrochromic glass 50 is located on one side, away from the lamp panel 20, of the light supplement lamp 10, and the electrochromic glass 50 is provided with a second opening structure 501, so that the other end of the lens 30 can extend and retract through the first opening structure 21 and the second opening structure 501; the color-changing driving circuit 60 is used for controlling the electrochromic glass 50 to work or stop working, so that the light emitted by the light supplement lamp 10 passes through the electrochromic glass 50 to display red light or white light.

In the embodiment of the present invention, by providing the electrochromic glass 50 and the color-changing driving circuit 60, the color-changing driving circuit 60 can control the color of the electrochromic glass 50, so that the light supplement lamp 10 forms red light or white light after penetrating through the electrochromic glass 50, so as to control the light requirement of the camera device in twenty-four hours of operation in the daytime and at night, and the camera device can control the light by controlling the electrochromic glass 50, so that the camera device can also shoot color images at night. In the embodiment of the utility model, the number of the light supplement lamps 10 can be reduced by arranging the electrochromic glass 50, so that an additional infrared lamp is not required in the embodiment of the utility model, the condition that the arrangement of the light supplement lamps 10 on the lamp panel 20 is dense to influence the heat dissipation of the circuit board 40 can be improved, the heat dissipation effect of the circuit board 40 is improved, and the heat dissipation effect of the camera device is further improved. Meanwhile, in the embodiment of the utility model, an infrared lamp is not required to be arranged, so that the control circuit of the embodiment of the utility model does not need to be provided with an additional circuit to control the infrared lamp, the complexity of the control circuit can be reduced, the wiring effect of the circuit board 40 can be improved, and the heat dissipation effect of the circuit board 40 can be further improved. In the embodiment of the present invention, the electrochromic glass 50 is provided with the second opening structure 501, so that the lens 30 can pass through the second opening structure 501, and the electrochromic glass 50 does not shield the lens 30, so that the shooting effect of the lens 30 is not affected when the electrochromic glass 50 works or stops working.

In the embodiment of the present invention, as shown in fig. 4, the control circuit includes a driving chip 43, the image pickup apparatus further includes a feedback circuit 41, a first pin of the driving chip 43 is connected to the feedback circuit 41, and the feedback circuit 41 is configured to input and generate a control signal to control the amplitude of the driving current value output by the driving chip 43. In the embodiment of the present invention, the driver chip 43 adopts an ETA2840S2G chip, in other embodiments, the driver chip 43 may also adopt other chips, and in the embodiment of the present invention, the first pin is an FB pin.

Specifically, IN the embodiment of the present invention, the power pin (IN pin) of the driver chip 43 is connected to the power VCC and is also connected to the first terminal of the fourth capacitor C4, and the second terminal of the fourth capacitor C4 is grounded.

The BST pin of the driver chip 43 is connected to the first terminal of the first capacitor C1, and the second terminal of the first capacitor C1 is connected to the SW pin of the driver chip 43.

An enable pin (EN pin) of the driving chip 43 is connected to a fill-lamp enable signal WHITE-LED-EN, the enable signal pin (EN pin) of the driving chip 43 is simultaneously connected to a first end of the first resistor R1, and a second end of the first resistor R1 is grounded.

The SW pin of the driver chip 43 is connected to the first end of the inductor L7, and the second end of the inductor L7 is connected to the anode (WHITE-LED +) of the fill light 10; the SW pin of the driver chip 43 is further connected to the first terminal of the diode D1, and the second terminal of the diode D1 is grounded; the second terminal of the inductor L7 is connected to the first terminal of the second capacitor C2, and the second terminal of the second capacitor C2 is grounded.

The FB pin of the driving chip 43 is connected to a first end of a third resistor R3, and a second end of the third resistor R3 is connected to a negative electrode (WHITE-LED-) of the fill-in lamp 10; meanwhile, the second end of the third resistor R3 is connected with the first end of the fourth resistor R4, and the second end of the fourth resistor R4 is grounded.

The FB pin of the driver chip 43 is connected to the feedback circuit 41, in the embodiment of the present invention, the feedback circuit 41 includes an input terminal of a control signal connected to a first terminal of a fifth resistor R5, a second terminal of the fifth resistor R5 connected to a first terminal of a third capacitor C3, and a second terminal of the third capacitor C3 connected to ground; the second end of the fifth resistor R5 is also connected with the first end of the second resistor R2; in the embodiment of the present invention, the feedback circuit 41 is connected to the FB pin of the driver chip 43 through the second end of the second resistor R2.

In the embodiment of the present invention, the voltage value input by the FB pin is changed by changing the level value of the control signal, so as to change the driving current value of the light supplement lamp 10, so as to adjust and control the brightness of the light supplement lamp 10, so that different brightness of the light supplement lamp 10 is formed, and different brightness can be suitable for different brightness requirements of displaying white light and red light through the electrochromic glass 50.

In the embodiment of the present invention, the control signal includes a pulse width modulation signal (PWM signal), and the driving current value of the fill-in light is adjusted by adjusting and controlling the level value of the PWM signal.

In the embodiment of the present invention, as shown in fig. 5, the control circuit includes a logic and gate chip 42, an input end of the logic and gate chip 42 is connected to the pulse width modulation signal PWM and the enable signal WHITE _ LED _ EN, respectively, and an output end of the logic and gate chip 42 is connected to the color-changing driving circuit 60 to control the color-changing driving circuit 60. In the embodiment of the utility model, the occupation of GPIO resources can not be additionally increased by arranging and adding the logic AND gate chip 42. The fill-light enable signal WHITE _ LED _ EN and the control signal PWM of the driving chip 43 are used as two input signals of the logic and gate chip 42, and the output signal of the logic and gate chip 42 can be directly used to control the color-changing driving circuit 60 (see fig. 2) of the electrochromic glass 50.

In the embodiment of the present invention, the enable signal is a low level signal, and the logic and gate chip 42 controls the output terminal to output the low level signal, so that the color-changing driving circuit 60 is not turned on, and the electrochromic glass 50 does not operate. In the embodiment of the utility model, when the enable signal WHITE _ LED _ EN is a low level signal, no matter whether the pulse width modulation signal is a high level signal or a low level signal, the electrochromic glass 50 does not work, and the light transmission effect of the electrochromic glass 50 is the same as or similar to that of common glass.

In the embodiment of the present invention, when the enable signal is a high level signal, the fill light 10 emits light, and the pulse width modulation signal is a low level signal, the logic and gate chip 42 controls the output terminal to output the low level signal, so that the color-changing driving circuit 60 is not turned on, and the electrochromic glass 50 does not operate. When the enable signal WHITE _ LED _ EN is a high-level signal, the control circuit is turned on to control the light supplement lamp 10 to emit light; the pulse width modulation signal (PWM signal) is a low level signal, the and logic gate chip 42 controls the output terminal PC-GLASS-EN to output the low level signal, and the electrochromic GLASS 50 does not operate, so that the light emitted from the light supplement lamp 10 of the image pickup apparatus according to the embodiment of the present invention passes through the electrochromic GLASS 50 to display white light.

In the embodiment of the present invention, when the enable signal is a high level signal, the fill light 10 emits light, and the pulse width modulation signal is a high level signal, the logic and gate chip 42 controls the output terminal to output the high level signal, so that the color-changing driving circuit 60 is turned on, and the electrochromic glass 50 operates. When the enable signal WHITE _ LED _ EN is a high-level signal, the control circuit is turned on to control the light supplement lamp 10 to emit light; the pulse width modulation signal (PWM signal) is a high level signal, the and logic gate chip 42 controls the output terminal PC-GLASS-EN to output the high level signal, and the electrochromic GLASS 50 works, so that the light emitted from the light supplement lamp 10 of the image pickup apparatus according to the embodiment of the present invention passes through the electrochromic GLASS 50 to display red light.

In the embodiment of the present invention, as shown in fig. 2 and 4, the driving chip 43 is connected to a sensor (not shown), the sensor is used for sensing ambient light and a target to be photographed, and if the target to be photographed is sensed, a signal is transmitted to the driving chip 43; if the sensed ambient light intensity is smaller than the preset value, transmitting a signal to the driving chip 43 to control the light supplement lamp 10 to emit light; if the ambient light intensity is smaller than the preset value and the target to be shot is sensed, a signal is transmitted to the driving chip 43 to control the light supplementing lamp 10 to emit light, the color-changing driving circuit 60 to be conducted, the electrochromic glass 50 to work and the lens 30 to work, and a color image is obtained.

In the embodiment of the utility model, the sensor is arranged, so that the sensor can control the ambient light and the target to be shot; in the embodiment of the present invention, the preset value is the minimum light intensity of the image capturing device in which the color image is clearly captured by the light of the working environment, and when the light intensity of the environment is greater than or equal to the preset value, that is, when sufficient light of the working environment of the image capturing device is sensed, for example, when the ambient light is daytime, or when other lighting devices are present in the environment around the image capturing device at night, the light supplement lamp 10 of the image capturing device of the embodiment of the present invention is turned off, and the image capturing device can capture the color image. When the ambient light intensity is smaller than the preset value, that is, the light of the working environment of the camera device is insufficient or at night, the sensor feeds back the sensed signal to the driving chip 43 of the control circuit, so that the control circuit controls the light supplement lamp 10 to emit light; when ambient light intensity is less than the default, be promptly at camera device operational environment light not enough or when night, sensor sensing when shooting the target, transmission signal to driver chip 43, and control color-changing drive circuit 60 switches on, make electrochromic glass 50 work, light filling lamp 10 is luminous, light filling lamp 10 shows ruddiness through electrochromic glass 50, driver chip 43 control lens 30 work, so that under dark or the not enough condition of light, camera device can shoot the color image.

In the embodiment of the present invention, as shown in fig. 2, the color-changing driving circuit 60 is disposed between the electrochromic glass 50 and the lamp panel 20. In the embodiment of the present invention, the color-changing driving circuit 60 is disposed between the electrochromic glass 50 and the lamp panel 20, so that the complexity of the control circuit on the circuit board 40 can be reduced, and the heat dissipation capability of the color-changing driving circuit 60 and the circuit board 40 can be improved.

In the embodiment of the present invention, as shown in fig. 6, the electrochromic glass 50 includes a first substrate 51, a first electrode layer 52, an ion storage layer 53, an electrolyte layer 54, an electrochromic layer 55, a second electrode layer 56, and a second substrate 57 in this order, and a color-change driving circuit 60 is connected between the first electrode layer 52 and the second electrode layer 56. In the embodiment of the present invention, the first substrate 51 and the second substrate 57 are made of a material having a high transmittance, and the light emission intensity of the imaging device is improved, specifically, the first substrate 51 and the second substrate 57 are made of glass or plastic.

In the embodiment of the utility model, the first electrode layer 52 and the second electrode layer 56 are transparent conductive layers, are conductive films, and have high light transmittance and conductivity. The first substrate 51 and the second substrate 57 made of glass or plastic are not conductive, and a transparent conductive layer is added to form a conductor. The quality of the transparent conductive layer directly affects the performance of the electrochromic filter.

In the embodiment of the present invention, the electrochromic layer 55 is a mixed conductor of electrons and ions, and is a core part of the electrochromic filter. The color of the layer can be reversibly changed under the action of an electric field.

In the embodiment of the present invention, the electrolyte layer 54 is used for conducting ions required in the process of the discoloration reaction, and needs to have a high ion passing rate and a low electron passing rate in order to pass only ions as far as possible and block electrons from passing.

In embodiments of the present invention, the ion storage layer 53 is also a mixed conductor of electrons and ions for providing and storing ions required for color change, typically using a reversible redox species.

In the embodiment of the present invention, the electrochromic glass 50 is formed by compounding multiple layers, and the first electrode layer 52 and the second electrode layer 56 of the electrochromic glass 50 are connected to the positive and negative electrodes of the power supply corresponding to the color-changing driving circuit 60, so that the color-changing driving circuit 60 controls the electrochromic glass 50 to work or stop working.

In the embodiment of the utility model, when the first electrode layer 52 and the second electrode layer 56 start to be electrified, ions in the ion storage layer 53 start to move, pass through the electrolyte layer 54, enter the electrochromic layer 55, and combine with electrons in the electrochromic layer 55 to generate an oxidation-reduction reaction, so that the newly generated substances can enable the glass to present a specific color, and simultaneously, the effect of filtering infrared light is achieved.

In the embodiment of the present invention, the light transmittance of the electrochromic glass 50 is controlled by the intensity of the current of the color-changing driving circuit 60. The size of the voltage input to the electrochromic glass 50 can be controlled, the quantity of ions entering the electrochromic layer 55 can be controlled, the color depth of the glass can be determined, and then the intensity of infrared filtering is adjusted, so that the requirements of different photographic devices for red light intensity caused by different light intensities in working environments can be met.

In the embodiment of the present invention, the number of the light supplement lamps 10 is four, and four light supplement lamps 10 are distributed around the first opening structure 21. In the embodiment of the utility model, by arranging four light supplement lamps 10, compared with the situation of eight half-light lamps in the prior art, the light supplement lamps 10 in the embodiment of the utility model are fewer in number, can be uniformly distributed on the lamp panel 20, improve the heat dissipation effect of the circuit board 40, and simultaneously can achieve a better light supplement effect.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An image pickup apparatus, comprising:

the light supplementing lamp is arranged on one side of the lamp panel and is positioned around the first opening structure;

the circuit board is positioned on one side, away from the light supplement lamp, of the lamp panel, one end of the lens is fixed to the circuit board, the circuit board comprises a control circuit, and the control circuit is used for controlling the light supplement lamp to emit light;

the electrochromic glass is positioned on one side, away from the lamp panel, of the light supplement lamp, and is provided with a second opening structure, so that the other end of the lens can extend and penetrate through the first opening structure and the second opening structure;

and the color-changing driving circuit is used for controlling the electrochromic glass to work or stop working so that the light emitted by the light supplement lamp can display red light or white light through the electrochromic glass.

2. The image pickup device according to claim 1, wherein the control circuit comprises a driving chip, and the image pickup device further comprises a feedback circuit, wherein the first pin of the driving chip is connected to the feedback circuit, and the feedback circuit is configured to generate a control signal to control a magnitude of the driving current value output by the driving chip.

3. The image pickup apparatus according to claim 2, wherein the control signal includes a pulse width modulation signal.

4. The image pickup apparatus according to claim 3, wherein the control circuit includes a logic and gate chip, input terminals of the logic and gate chip are connected to the pulse width modulation signal and the enable signal, respectively, and an output terminal of the logic and gate chip is connected to the color-changing drive circuit to control the color-changing drive circuit.

5. The image pickup device according to claim 4, wherein the enable signal is a low level signal, and the logic and gate chip controls the output terminal to output the low level signal, so that the color-changing driving circuit is not turned on and the electrochromic glass does not operate;

the enable signal is a high level signal, the light supplement lamp emits light, the pulse width modulation signal is a low level signal, and the logic AND gate chip controls the output end to output the low level signal, so that the color-changing drive circuit is not conducted, and the electrochromic glass does not work;

the enabling signal is a high level signal, the light supplementing lamp emits light, the pulse width modulation signal is a high level signal, and the logic AND gate chip controls the output end to output the high level signal, so that the color-changing driving circuit is switched on, and the electrochromic glass works.

6. The camera device according to claim 4, wherein the driving chip is connected to a sensor, the sensor is configured to sense ambient light and an object to be photographed, and transmit a signal to the driving chip if the object to be photographed is sensed;

if the sensed ambient light intensity is smaller than a preset value, the sensor transmits a signal to the driving chip to control the light supplement lamp to emit light;

if the ambient light intensity is smaller than the preset value and the target to be shot is sensed, the sensor transmits a signal to the driving chip to control the light supplementing lamp to emit light, control the color-changing driving circuit to be conducted, control the electrochromic glass to work, control the lens to work and obtain a color image.

7. The imaging device according to claim 1, wherein the color-changing drive circuit is provided between the electrochromic glass and the lamp panel.

8. The image pickup device according to claim 1, wherein the electrochromic glass comprises a first substrate, a first electrode layer, an ion storage layer, an electrolyte layer, an electrochromic layer, a second electrode layer, and a second substrate in this order, and the color-change drive circuit is connected between the first electrode layer and the second electrode layer.

9. The image pickup apparatus according to claim 8, wherein the transmission intensity of the electrochromic glass is controlled by the intensity of the current of the color-changing drive circuit.

10. The image pickup device according to claim 1, wherein the number of the light supplement lamps is four, and four light supplement lamps are distributed around the first opening structure.