TWM479423U - Light control device of image-capturing mechanism - Google Patents

Description

Light control device for image capturing mechanism

The present invention relates to a light control device for an image capture mechanism, and more particularly to an illumination change of an environment in which the image capture mechanism is located, and adjusts and controls the illumination requirements of the illumination mechanism, so that the illumination mechanism can perform optimally with appropriate energy consumption. The state of use allows the illuminating mechanism to achieve low power consumption, high stability, and longevity.

According to the general practitioners, such as the "Infrared Lighting Equipment" of the Republic of China New Patent No. 378332, which is composed of a lighting device, a switching unit, a synchronous signal capturing module, a signal correction module, and a driving module. The power conversion module, the AC power supply, and the infrared camera are configured, wherein the switch unit is coupled to the light emitting device, and can control the loop conduction of the infrared light emitting diodes; the synchronous signal capturing module is coupled to the The infrared camera can receive an original image signal and capture the vertical sync output of the original image signal. The signal correction module is coupled to the synchronous signal capture module, and can receive the vertical sync signal for correction. a synchronous driving signal is outputted; the driving module is coupled to the signal correction module, and can receive the synchronous driving signal for amplification to drive the switching unit to open and close, thereby controlling the infrared light emitting diodes to be extinguished, thereby generating a Infrared illumination source.

However, in the case of the above-mentioned "infrared illumination device", when the power conversion operation is performed, there is usually a situation in which voltage fluctuation occurs, and if the illumination device is matched with a switching element with a constant voltage, the operating current is also There will be fluttering; in addition, since the "infrared illumination device" cannot adjust the illumination requirements of the light-emitting elements depending on the illumination of the environment in which the line camera is located, it is not possible to optimize the use of the light-emitting elements, and more The light-emitting element has the disadvantages of high energy dissipation, low stability and reduced service life.

In order to solve the various problems in the past, the creators of this case have devoted themselves to research and development of a "light control device for image capture mechanism" to effectively improve the shortcomings of the use.

The main purpose of the present invention is to adjust and control the illumination of the illuminating mechanism by using the light source control mechanism and the pulse wave control mechanism to change the illuminance of the environment in which the image capturing mechanism is located when the illuminating mechanism provides the image capturing mechanism for auxiliary illumination. The demand enables the illuminating mechanism to exert an optimal use state with appropriate energy consumption, so that the illuminating mechanism achieves low power consumption, high stability, and long service life.

For the purpose of the above, the present invention relates to a light control device for an image capturing mechanism, which comprises: an image capturing mechanism; a light source control mechanism connected to the image capturing mechanism, which can identify the frequency in the image capturing mechanism a 15 Hz to 60 Hz image signal; a pulse wave control mechanism connected to the light source control mechanism for receiving the signal after the light source control mechanism is recognized, and generating a pulse signal; and an illuminating mechanism connected to the pulse wave control mechanism, It is used to receive the pulse signal generated by the pulse wave control mechanism, and the signal is used as the basis for the illumination.

In an embodiment of the present invention, the image capturing mechanism includes a photographing unit, a field signal processing interface unit connecting the photographing unit and the light source control mechanism, and an ambient brightness detector connected to the light source control mechanism.

In an embodiment of the present invention, the light source control mechanism includes a brightness control unit connected to the ambient brightness detector and the pulse wave control mechanism, an NTSC/PAL identification unit connected to the field signal processing interface unit, and a connection diagram. The field signal processing interface unit and the NTSC/PAL identification unit's photographic signal shaping unit and a photographic signal frequency identification unit connected to the photographic signal shaping unit.

In an embodiment of the present invention, the NTSC/PAL identification unit can identify an image signal having a frequency of 50 Hz to 60 Hz.

In an embodiment of the present invention, the photographic signal shaping processing unit can identify an image signal having a frequency of 15 Hz to 60 Hz.

In an embodiment of the present invention, the pulse wave control mechanism includes a pulse wave frequency setting unit connected to the camera signal frequency identification unit, a pulse wave signal generator connected to the brightness control unit and the pulse wave frequency setting unit, and a connection. A pulse width adjusting unit of the pulse signal generator and a pulse wave output current driving unit connected to the pulse width adjusting unit.

In an embodiment of the present invention, the illumination mechanism includes a current amplification driving unit connected to the pulse wave output current driving unit and a plurality of light emitting diodes connected to the current amplification driving unit.

1‧‧‧Image capture mechanism 11‧‧‧Photography unit 12‧‧‧ Field signal processing interface unit 13‧‧‧ Ambient brightness detector 2‧‧‧Light source control unit 21‧‧‧Brightness control unit 22‧‧ ‧NTSC/PAL identification unit 23‧‧‧Photo signal shaping unit 24‧‧‧Photo signal frequency identification unit 3.‧‧ Pulse control unit 31‧‧‧ Pulse frequency setting unit 32‧‧‧ Pulse signal generation 33‧‧‧ Pulse width adjustment unit 34‧‧‧ Pulse output current drive unit 4‧‧‧Lighting mechanism 41‧‧‧Current amplification drive unit 42‧‧‧Lighting diode

The first picture is a schematic diagram of the basic structure of the creation.
The second picture is a schematic diagram of the pulse output timing of the creation.

Please refer to "Figure 1 and Figure 2" for the basic architecture diagram of the creation and the pulse output timing diagram of this creation. As shown in the figure, the present invention is a light control device of an image capturing mechanism, which comprises at least one image capturing mechanism 1, a light source controlling mechanism 2, a pulse wave controlling mechanism 3 and an illuminating mechanism 4.

The image capturing mechanism 1 mentioned above comprises a photographing unit 11, a field signal processing interface unit 12 connected to the photographing unit 11, and an ambient brightness detector 13 connected to the light source control unit 2.

The light source control mechanism 2 can identify the image signal of the image capturing mechanism 1 with a frequency of 15 Hz to 60 Hz, and the light source control mechanism 2 includes a brightness control unit 21 connected to the ambient brightness detector 13 and a connection field signal. The NTSC/PAL identification unit 22 of the processing interface unit 12, the photographic signal shaping processing unit 23 of the connection field signal processing interface unit 12 and the NTSC/PAL identification unit 22, and the photographic signal frequency of the connection photographic signal shaping processing unit 23 The identification unit 24, wherein the NTSC/PAL identification unit 22 can identify an image signal having a frequency of 50 Hz to 60 Hz, and the photographic signal shaping processing unit 23 can identify an image signal having a frequency of 15 Hz to 60 Hz.

The pulse wave control mechanism 3 is configured to receive the signal after the light source control unit 2 recognizes the completion, and generate a pulse signal, and the pulse wave control mechanism 3 includes a pulse wave frequency setting unit 31 connected to the photographic signal frequency identification unit 24. a pulse wave signal generator 32 connected to the brightness control unit 21 and the pulse wave frequency setting unit 31, a pulse width adjusting unit 33 connected to the pulse wave signal generator 32, and a pulse wave output of a connected pulse width adjusting unit 33 Current drive unit 34.

The illuminating mechanism 4 is configured to receive the pulse signal generated by the pulse wave control mechanism 3, and the signal is used as a basis for illuminating, and the illuminating mechanism 4 includes a current amplifying driving unit 41 connected to the pulse wave output current driving unit 34. And a plurality of light-emitting diodes 42 connected to the current amplification driving unit 41.

When the creation is in use, the ambient brightness detector 13 detects the change in illumination of the photographing unit 11, and if the ambient brightness detector 13 detects that the ambient brightness is sufficient, it does not start, and if the ambient illumination is detected, If the signal is insufficient, the signal is transmitted to the brightness control unit 21. At this time, the camera unit 11 simultaneously acquires the original signal of the image by the field signal processing interface unit 12, and transmits the original signal of the image to the NTSC/PAL identification. The unit 22 and the photographic signal shaping processing unit 23 further identify the field frequency based on the field period of the NTSC/PAL identification unit 22 or the photographic signal shaping processing unit 23 depending on the source of the signal, and automatically separate the field frequency. The relevant picture field signal (such as part a of FIG. 2) is outputted, and the frequency is automatically recognized by the photographic signal frequency identification unit 24 as 50 Hz or 60 Hz. After the identification is completed, the true frequency is obtained, and the pulse frequency setting unit 31 is obtained. The waveform of the frequency is modified as needed, and then transmitted to the pulse signal generator 32 to make the pulse signal generator 32 simultaneously receives the signal of the ambient brightness detector 13 and the pulse wave frequency setting unit 31, and when the field frequency is above 30 Hz, the pulse wave signal generator 32 cooperates with the pulse width adjusting unit 33, in each The field signal period is 0.8 milliseconds before the falling edge and 0.4 milliseconds after the falling edge. A total of 1.2 milliseconds generates a pulse signal of 1.2 milliseconds (as in part b of Figure 2), and the pulse signal is pulsed. The output current driving unit 34 is output to the current amplifying driving unit 41 of the light-emitting mechanism 4, thereby illuminating each of the light-emitting diodes 42; and when the field frequency is below 30 Hz (as in part c of FIG. 2), the pulse The wave signal generator 32 automatically converts the frequency, so that the pulse width adjusting unit 33 generates a frequency conversion width modulation signal based on the phase of the original picture field signal, and the frequency conversion width modulation signal is output by the pulse wave. The current driving unit 34 is output to the current amplification driving unit 41 of the light-emitting mechanism 4, thereby lighting each of the light-emitting diodes 42.

In summary, the light control device of the image capturing mechanism of the present invention can effectively improve various shortcomings of the conventional use, and can be used by the light source control mechanism and the pulse wave control mechanism to capture the image when the illumination device provides the image capturing mechanism for auxiliary illumination. The illuminance of the environment in which the organization is located changes, and the lighting requirements of the illuminating mechanism are adjusted and controlled, so that the illuminating mechanism can exert the optimal use state with appropriate energy consumption, so that the illuminating mechanism achieves low power consumption, high stability and long service life. In order to make the creation of this creation more progressive, more practical, and more in line with the needs of consumers, it has indeed met the requirements of the new patent application, and filed a patent application according to law.

However, the above is only the preferred embodiment of the present invention, and the scope of the creation of the present invention cannot be limited by this; therefore, the simple equivalent changes and modifications made by the scope of the patent application and the content of the creation specification are All should remain within the scope of this new patent.

1‧‧‧Image capture agency

11‧‧‧Photographic unit

12‧‧‧Field signal processing interface unit

13‧‧‧Environmental brightness detector

2‧‧‧Light source control mechanism

21‧‧‧Brightness control unit

22‧‧‧NTSC/PAL identification unit

23‧‧‧Photographic Signal Processing Unit

24‧‧‧Photo Signal Frequency Identification Unit

3‧‧‧ Pulse Control Mechanism

31‧‧‧ Pulse frequency setting unit

32‧‧‧ Pulse Signal Generator

33‧‧‧ Pulse width adjustment unit

34‧‧‧ Pulse output current drive unit

4‧‧‧Lighting mechanism

41‧‧‧Current amplification drive unit

42‧‧‧Lighting diode

Claims (7)

A light control device for an image capturing mechanism is connected to an electronic camera for use, and includes:
An image capture mechanism;
a light source control mechanism is connected to the image capturing mechanism to identify an image signal having a frequency of 15 Hz to 60 Hz in the image capturing mechanism;
a pulse wave control mechanism is connected to the light source control mechanism for receiving the signal after the light source control mechanism is recognized, and generates a pulse signal; and an illumination mechanism is connected to the pulse wave control mechanism for receiving the pulse wave control The pulse signal generated by the organization, and the signal is used as the basis for illumination. The optical control device of the image capturing mechanism of claim 1, wherein the image capturing mechanism comprises a photographing unit, a field signal processing interface unit connecting the photographing unit and the light source control mechanism, and a connection. Ambient brightness detector for light source control mechanism. The light control device of the image capturing mechanism of claim 2, wherein the light source control mechanism comprises a brightness control unit connected to the ambient brightness detector and the pulse wave control mechanism, and a connection field signal processing. The NTSC/PAL identification unit of the interface unit, the photographic signal shaping unit of the connection field signal processing interface unit and the NTSC/PAL identification unit, and the photographic signal frequency identification unit connected to the photographic signal shaping unit. The optical control device of the image capturing mechanism of claim 3, wherein the NTSC/PAL identification unit can identify an image signal having a frequency of 50 Hz to 60 Hz. The optical control device of the image capturing mechanism of claim 3, wherein the photographic signal shaping unit can identify an image signal having a frequency of 15 Hz to 60 Hz. The optical control device of the image capturing mechanism of claim 3, wherein the pulse wave control mechanism comprises a pulse wave frequency setting unit connected to the photographic signal frequency identification unit, a connection brightness control unit and a pulse wave a pulse wave signal generator of the frequency setting unit, a pulse width adjusting unit connected to the pulse wave signal generator, and a pulse wave output current driving unit connected to the pulse width adjusting unit. The light control device of the image capturing mechanism of claim 6, wherein the light emitting mechanism comprises a current amplifying driving unit connected to the pulse wave output current driving unit and a plurality of light emitting driving units connected to the current amplifying driving unit. Polar body.