Spotlight system with adjustable emission angle

Abstract

The present invention provides a spot lamp system with adjustable emission angle. The spot lamp system with adjustable emission angle includes: a light source module for providing a light source; a focusing lens disposed on the light-emitting side of the light source module, the focusing lens having a first set of focusing electrodes and a second set of focusing electrodes arranged in sequence along the optical axis direction of the focusing lens; a control circuit electrically connected to the light source module, the control circuit having a first focusing port and a second focusing port, the first focusing port being connected to the first set of focusing electrodes, the second focusing port being connected to the second set of focusing electrodes, both the first focusing port and the second focusing port outputting pulse signals, and the pulse signal output by the first focusing port having a 90-degree phase difference from the pulse signal output by the second focusing port. The present invention solves the problem of poor focusing effect of spot lamps in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting devices, and more particularly, to a spot light system with adjustable emission angle. Background Art

[0002] With the improvement of living quality, spot lights can significantly improve the quality of indoor lighting, and the demand for installing spot lights indoors is increasing. After the existing spot lights are installed, the size of the light beam requires manual adjustment of the beam angle size of each light, and the beam angle cannot be automatically adjusted.

[0003] Currently, the commonly used adjustable-focus spot lights use a motor to rotate to control the position of the lens, and then adjust the light-emitting angle of the spot light. However, the motor is relatively large in size, requires additional structural design, occupies a large space, makes noise during operation, and has a large current during operation, requiring additional power of the entire lamp power supply.

[0004] To solve the above technical problems, a liquid crystal adjustable-focus spot light has emerged in the prior art. As Figure 1 shown, it adds a liquid crystal adjustable-focus lens in front of the optical lens, and controls the change of the polarized light beam size of the liquid crystal adjustable-focus lens through an electronic circuit to achieve automatic adjustment of the light beam projection size.

[0005] When the voltage applied to the liquid crystal adjustable-focus lens is small, the deflection angle of the liquid crystal molecules is small, the converging effect on light is weak, the projection angle of the spot light beam is large, and the light spot is large; when the voltage applied to the liquid crystal adjustable-focus lens is large, the deflection angle of the liquid crystal molecules is large, the converging effect on light is strong, the projection angle of the spot light beam is small, and the light spot is small.

[0006] However, this solution does not take into account the polarization phenomenon of light. Since the light emitted by the LED light source is equivalent to the vector sum of the polarization amplitude components in the vertical and horizontal directions, and there is a phase delay between the vertical polarization component and the horizontal polarization component of light, when using a single-layer liquid crystal polarization scheme, it can only produce a birefringence effect on the polarized light in one direction of the LED light source, and cannot produce a good focusing effect.

[0007] That is to say, the spot lights in the prior art have the problem of poor focusing effect. Summary of the Invention

[0008] The main object of the present invention is to provide a spot light system with adjustable emission angle to solve the problem of poor focusing effect of spot lights in the prior art.

[0009] To achieve the above object, according to one aspect of the present invention, there is provided a spotlight system with adjustable emission angle, including: a light source module for providing light; a focusing lens disposed on the light-emitting side of the light source module, the focusing lens having a first set of focusing electrodes and a second set of focusing electrodes arranged in sequence along the optical axis direction of the focusing lens; a control circuit electrically connected to the light source module, the control circuit having a first focusing port and a second focusing port, the first focusing port being connected to the first set of focusing electrodes, the second focusing port being connected to the second set of focusing electrodes, both the first focusing port and the second focusing port outputting pulse signals, and the pulse signal output by the first focusing port and the pulse signal output by the second focusing port having a phase difference of 90 degrees to adjust the emission angle of the spotlight system.

[0010] Further, the control circuit includes: a liquid crystal driving circuit including a first driving circuit and a second driving circuit, the first driving circuit having a first focusing port, the second driving circuit having a second focusing port; a processor including a first output port and a second output port, the first output port being connected to the first driving circuit, the second output port being connected to the second driving circuit, the first output port outputting a first pulse signal, the second output port outputting a second pulse signal, the first pulse signal and the second pulse signal being of the same magnitude and having a phase difference of 90 degrees.

[0011] Further, the processor is an 8-bit microprocessor.

[0012] Further, the control circuit further includes a voltage control circuit electrically connected to the liquid crystal driving circuit to provide voltage for the liquid crystal driving circuit, and the voltages of the first driving circuit and the second driving circuit are the same.

[0013] Further, the voltage output by the voltage control circuit is greater than or equal to 2 volts and less than or equal to 22 volts.

[0014] Further, the voltage control circuit includes: a control component outputting a pulse signal; a voltage trimmer electrically connected to the control component, receiving the pulse signal output by the control component, and converting the pulse signal into a voltage signal and outputting it to the liquid crystal driving circuit.

[0015] Further, the control component includes one of a wireless control module and a wired control module.

[0016] Further, the control circuit further includes an LED driver electrically connected to the light source module to control the light emission of the light source module, the control component including a cold signal output port outputting a cold light signal PWMC and a warm signal output port outputting a warm light signal PWMW, the cold signal output port and the warm signal output port being electrically connected to the LED driver to control the cold and warm light dimming of the light source module.

[0017] Further, the control circuit further includes: a switching power supply, which is electrically connected to the LED driver and converts the input 220V alternating current into a 42V direct current signal for output to the LED driver to supply power to the LED driver; a first linear voltage regulator, which is electrically connected to the switching power supply, and the first linear voltage regulator is electrically connected to the control component and converts the 42V direct current signal output by the switching power supply into a 3.3V electrical signal for transmission to the control component.

[0018] Further, the control circuit further includes: a voltage converter, which is electrically connected to the switching power supply and converts the 42V direct current signal output by the switching power supply into a 22V electrical signal for transmission to the liquid crystal driving circuit; a second linear voltage regulator, which is electrically connected to the voltage converter and converts the 22V electrical signal output by the voltage converter into a 3.3V electrical signal for transmission to the processor.

[0019] Further, the periods of the pulse signals output by the first focusing port and the second focusing port are the same.

[0020] Further, the first set of focusing electrodes includes electrode plates arranged in parallel and spaced apart in sequence along the extending direction of the optical axis, and there is a first focusing region between the two electrode plates; the second set of focusing electrodes includes electrode plates arranged in parallel and spaced apart in sequence along the extending direction of the optical axis, and there is a second focusing region between the two electrode plates. A change in one of the first focusing region and the second focusing region can change the angle of the light in the first direction passing through the focusing lens, and a change in the other of the first focusing region and the second focusing region can change the angle of the light in the second direction passing through the focusing lens, and the first direction is perpendicular to the second direction.

[0021] Further, the projection angle of the focusing lens is greater than or equal to 5 degrees and less than or equal to 55 degrees.

[0022] Applying the technical solution of the present invention, a spot lamp system with an adjustable emission angle includes a light source module, a focusing lens, and a control circuit. The light source module is used to provide a light source; the focusing lens is arranged on the light-emitting side of the light source module, and the focusing lens has a first set of focusing electrodes and a second set of focusing electrodes arranged in sequence along the optical axis direction of the focusing lens; the control circuit is electrically connected to the light source module, and the control circuit has a first focusing port and a second focusing port. The first focusing port is connected to the first set of focusing electrodes, and the second focusing port is connected to the second set of focusing electrodes. Both the first focusing port and the second focusing port output pulse signals, and the pulse signal output by the first focusing port and the pulse signal output by the second focusing port have a phase difference of 90 degrees to adjust the emission angle of the spot lamp system.

[0023] By providing a focusing lens in a spotlight system with adjustable emission angle, the focal length of the focusing lens can be changed through a control circuit, thereby controlling the emission angle of the emitted light of the spotlight system, greatly increasing the convenience of adjusting the spotlight angle without the need for workers to climb high for manual adjustment. At the same time, only a focusing lens is added to the original spotlight system, and no motor control is required, which is beneficial to the miniaturization of the spotlight system. The focusing lens has a first set of focusing electrodes and a second set of focusing electrodes, enabling the focusing lens to have at least two adjustment methods. The pulse signal output from the first focusing port and the pulse signal output from the second focusing port have a 90-degree phase difference, resulting in the voltage changes at the first set of focusing electrodes and the second set of focusing electrodes being asynchronous. The voltages of the first set of focusing electrodes and the second set of focusing electrodes can be controlled independently. The first set of adjustment electrodes and the second set of focusing electrodes are independent of each other and act on the horizontal polarization component and the vertical polarization component simultaneously, reducing the focusing error, improving the accuracy of focusing, not being easily affected by the polarization of light, and having a good focusing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0025] Figure 1 shows a schematic internal structure diagram of a focusing lens in the prior art;

[0026] Figure 2 shows a schematic circuit structure diagram of a spotlight system according to an alternative embodiment of the present invention;

[0027] Figure 3 shows Figure 2 the schematic internal structure diagram of the focusing lens in;

[0028] Figure 4 shows Figure 3 the relationship diagram of the pulse signals input to the first set of focusing electrodes and the second set of focusing electrodes in.

[0029] Among them, the above-mentioned drawings include the following reference numerals:

[0030] 10. Light source module; 20. Focusing lens; 21. First group of focusing electrodes; 22. Second group of focusing electrodes; 23. First focusing area; 24. Second focusing area; 30. Liquid crystal drive circuit; 31. First drive circuit; 311. First focusing port; 32. Second drive circuit; 321. Second focusing port; 40. Processor; 41. First output port; 42. Second output port; 50. Control component; 60. LED driver; 70. Switching power supply; 80. First linear voltage regulator; 90. Voltage converter; 100. Second linear voltage regulator; 110. Voltage trimmer. Detailed implementation manners

[0031] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0032] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in the present application have the same meanings as those commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0033] In the present invention, unless otherwise stated, the orientation terms such as "upper, lower, top, bottom" are generally in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions of the components themselves; similarly, for the convenience of understanding and description, "inner, outer" refer to the inner and outer of the contours of the components themselves, but the above orientation terms are not used to limit the present invention.

[0034] In order to solve the problem of poor focusing effect of spotlights in the prior art, the present invention provides a spotlight system with adjustable emission angle.

[0035] As Figures 2 to 4 shown, the spotlight system with adjustable emission angle includes a light source module 10, a focusing lens 20 and a control circuit. The light source module 10 is used to provide light; the focusing lens 20 is arranged on the light-emitting side of the light source module 10, and the focusing lens 20 has a first group of focusing electrodes 21 and a second group of focusing electrodes 22 arranged in sequence along the optical axis direction of the focusing lens 20; the control circuit is electrically connected to the light source module 10, the control circuit has a first focusing port 311 and a second focusing port 321, the first focusing port 311 is connected to the first group of focusing electrodes 21, the second focusing port 321 is connected to the second group of focusing electrodes 22, both the first focusing port 311 and the second focusing port 321 output pulse signals, and the pulse signal output by the first focusing port 311 and the pulse signal output by the second focusing port 321 have a phase difference of 90 degrees to adjust the emission angle of the spotlight system.

[0036] By providing a focusing lens 20 in a spotlight system with adjustable emission angle, the focal length of the focusing lens 20 can be changed through a control circuit, thereby controlling the emission angle of the emitted light of the spotlight system, greatly increasing the convenience of adjusting the spotlight angle without the need for workers to climb high for manual adjustment. At the same time, only the focusing lens 20 is added to the original spotlight system, and no motor control is required, which is beneficial to the miniaturization of the spotlight system. The focusing lens 20 has a first set of focusing electrodes 21 and a second set of focusing electrodes 22, enabling the focusing lens 20 to have at least two adjustment methods. Since the pulse signal output from the first focusing port 311 and the pulse signal output from the second focusing port 321 have a 90-degree phase difference, the voltage changes at the first set of focusing electrodes 21 and the second set of focusing electrodes 22 are out of sync, allowing the voltages of the first set of focusing electrodes 21 and the second set of focusing electrodes 22 to be controlled separately. The first set of adjustment electrodes and the second set of focusing electrodes are independent of each other and act on the horizontal polarization component and the vertical polarization component simultaneously, reducing the focusing error, improving the focusing accuracy, and being less susceptible to the influence of light polarization, resulting in a better focusing effect.

[0037] After voltages are applied to the first set of focusing electrodes 21 and the second set of focusing electrodes 22, they can adjust the angles of the emitted light in two directions of the spotlight. Since the pulse signal output from the first focusing port 311 and the pulse signal output from the second focusing port 321 have a phase difference, the adjustments of the angles in the two directions can be controlled separately, greatly increasing the diversity and convenience of adjusting the light emission angle of the spotlight system.

[0038] Such as Figure 2As shown, the control circuit includes a liquid crystal driving circuit 30 and a processor 40. The liquid crystal driving circuit 30 includes a first driving circuit 31 and a second driving circuit 32. The first driving circuit 31 has a first focusing port 311, and the second driving circuit 32 has a second focusing port 321. The processor 40 includes a first output port 41 and a second output port 42. The first output port 41 is connected to the first driving circuit 31, and the second output port 42 is connected to the second driving circuit 32. The first output port 41 outputs a first pulse signal, and the second output port 42 outputs a second pulse signal. The first pulse signal and the second pulse signal are of the same magnitude and have a phase difference of 90 degrees. The processor 40 has two output ports, and the processor 40 can control the signals output by the two output ports. The first pulse signal output by the first output port 41 is input into the first group of focusing electrodes 21 through the first driving circuit 31 to change the emission angle of the spotlight system in the first direction. The second pulse signal output by the second output port 42 is input into the second group of focusing electrodes 22 through the second driving circuit 32 to change the emission angle of the spotlight system in the second direction. Since the first pulse signal and the second pulse signal are of the same magnitude but have a phase difference between them, the spotlight system can independently adjust the emission angles in the first direction and the second direction, thereby facilitating the user to control the final emission angle and direction of the spotlight system.

[0039] Specifically, the processor 40 is an 8-bit microprocessor. The 8-bit microprocessor can output two pulse signals with a phase difference.

[0040] As Figure 2 shown, the control circuit further includes a voltage control circuit. The voltage control circuit is electrically connected to the liquid crystal driving circuit 30 and provides voltage for the liquid crystal driving circuit 30, and the voltages of the first driving circuit 31 and the second driving circuit 32 are the same. The voltage provided by the voltage control circuit for the liquid crystal driving circuit 30 can be changed, thereby changing the peak values of the voltages at the first group of focusing electrodes 21 and the second group of focusing electrodes 22, and further changing the size of the projected light. The greater the voltages at the first group of focusing electrodes 21 and the second group of focusing electrodes 22, the greater the polarization angle, the greater the angle of the projected light, and the larger the irradiation range.

[0041] Specifically, the voltage output by the voltage control circuit is greater than or equal to 2 volts and less than or equal to 22 volts. If the voltage output by the voltage control circuit is less than 2V, the irradiation range of the spotlight system is too small, resulting in an unsatisfactory irradiation effect of the spotlight system. If the voltage output by the voltage control circuit is greater than 22V, the irradiation range of the spotlight system is too large, which is not conducive to the spotlight system providing an ambient atmosphere. Limiting the voltage output by the voltage control circuit between 2 and 22V can effectively ensure that the irradiation range of the spotlight system is within a reasonable range.

[0042] As Figure 2As shown, the voltage control circuit includes a control component 50 and a voltage trimmer 110. The control component 50 outputs a pulse signal. The voltage trimmer 110 is electrically connected to the control component 50, receives the pulse signal output by the control component 50, and converts the pulse signal into a voltage signal and outputs it to the liquid crystal driving circuit 30. The control component 50 can be electrically connected to the liquid crystal driving circuit 30 through the voltage trimmer 110, so that the control component 50 can control the liquid crystal driving circuit 30, and further control the voltages of the first focusing electrode group 21 and the second focusing electrode group 22 to control the irradiation range of the spotlight system.

[0043] It should be noted that the user can adjust the control component 50 to change the voltages of the first focusing electrode group 21 and the second focusing electrode group 22, and further adjust the irradiation range of the spotlight system.

[0044] Optionally, the control component 50 includes one of a wireless control module and a wired control module. When the control component 50 includes a wireless control module, the control component 50 can be adjusted through a wireless structure. The wireless control module can be a Bluetooth module, an infrared module, etc.

[0045] Of course, the control component 50 can include a wired control module and be adjusted through a wired structure.

[0046] As Figure 2 shown, the control circuit further includes an LED driver 60. The LED driver 60 is electrically connected to the light source module 10 to control the light emission of the light source module 10. The control component 50 includes a cold signal output port that outputs a cold light signal PWMC and a warm signal output port that outputs a warm light signal PWMW. The cold signal output port and the warm signal output port are electrically connected to the LED driver 60 to control the cold and warm light dimming of the light source module 10. The light source module 10 can emit cold light and can also emit warm light, and the control component 50 is used to control whether the light emitted by the light source module 10 is cold light or warm light. When the cold signal output port of the control component 50 outputs the cold light signal PWMC, the light source module 10 emits cold light, and when the warm signal output port of the control component 50 outputs the warm light signal PWMW, the light source module 10 emits warm light, so as to achieve cold and warm light dimming, and at the same time, it can also achieve the dimming form of cold and warm light alternation, increasing the diversification of the use of the spotlight system.

[0047] As Figure 2As shown in the figure, the control circuit further includes a switching power supply 70 and a first linear voltage regulator 80. The switching power supply 70 is electrically connected to the LED driver 60, and converts the input 220V AC power into a 42V DC signal and outputs it to the LED driver 60 to supply power to the LED driver 60. The switching power supply 70 is electrically connected to the first linear voltage regulator 80. The first linear voltage regulator 80 is electrically connected to the control component 50, and converts the 42V DC signal output by the switching power supply 70 into a 3.3V electrical signal and transmits it to the control component 50. The setting of the switching power supply 70 can convert the 220V AC power into a 42V DC signal, which is divided into two paths. One path supplies power to the LED driver 60, and the other path converts the 42V DC signal into a 3.3V electrical signal through the first linear voltage regulator 80 to supply power to the control component 50.

[0048] As Figure 2 shown in the figure, the control circuit further includes a voltage converter 90 and a second linear voltage regulator 100. The voltage converter 90 is electrically connected to the switching power supply 70, and converts the 42V DC signal output by the switching power supply 70 into a 22V electrical signal and transmits it to the liquid crystal driving circuit 30. The second linear voltage regulator 100 is electrically connected to the voltage converter 90, and converts the 22V electrical signal output by the voltage converter 90 into a 3.3V electrical signal and transmits it to the processor 40. The voltage converter 80 converts the 42V DC signal output by the switching power supply 70 into a 22V electrical signal and then divides it into two paths. One path is transmitted to the liquid crystal driving circuit 30 to supply power to the liquid crystal driving circuit 30. The other path is transmitted to the second linear voltage regulator 100, and the 22V electrical signal is converted into a 3.3V electrical signal by the second linear voltage regulator 100 to supply power to the processor 40 to ensure the stability of the power supply for the processor 40.

[0049] Specifically, the period of the pulse signals output by the first focusing port and the second focusing port is 360 degrees. The magnitudes and frequencies of the pulse signals output by the first focusing port and the second focusing port are the same, only the phases are different. The phase of the entire pulse signal is 180 degrees. The phases of the pulse signals output by the first focusing port and the second focusing port differ by 90 degrees, which results in an overlapping part between the two paths of pulse signals. That is to say, there is a common modulation time for the first set of focusing electrodes 21 and the second set of focusing electrodes 22. It should be noted that the phase period of the pulse signal is 360 degrees, that is, the total phase of a positive pulse signal and a negative pulse signal is 360 degrees. The positive pulse signal occupies a phase of 180 degrees, and the negative pulse signal occupies a phase of 180 degrees. The phases of the pulse signals output by the first focusing port and the second focusing port are different.

[0050] As Figure 3As shown in the figure, the first group of focusing electrodes 21 includes electrode plates that are arranged in sequence along the extension direction of the optical axis, parallel and spaced apart from each other. There is a first focusing region 23 between the two electrode plates; the second group of focusing electrodes 22 includes electrode plates that are arranged in sequence along the extension direction of the optical axis, parallel and spaced apart from each other. There is a second focusing region 24 between the two electrode plates. A change in one of the first focusing region 23 and the second focusing region 24 can change the angle of the light in the first direction transmitted through the focusing lens 20, and a change in the other of the first focusing region 23 and the second focusing region 24 can change the angle of the light in the second direction transmitted through the focusing lens 20. The first direction is perpendicular to the second direction. The first focusing port is connected to the electrode plates of the first group of focusing electrodes 21 to change the voltage between the two electrode plates, thereby affecting the liquid crystal molecules in the first focusing region 23, and then changing the focal length of the focusing lens 20. The change in the focal length of the focusing lens 20 changes the irradiation angle of the spotlight system. The second focusing port is connected to the electrodes of the second group of focusing electrodes 22 to change the voltage between the two electrode plates, thereby affecting the liquid crystal molecules in the second focusing region 24, and then changing the focal length of the focusing lens 20. The change in the focal length of the focusing lens 20 changes the irradiation angle of the spotlight system. The first focusing region 23 and the second focusing region 24 can change the irradiation angles of the light in different directions, making the adjustment of the spotlight system more diverse and ensuring the convenience of the adjustment of the spotlight system.

[0051] Specifically, the projection angle of the focusing lens 20 is greater than or equal to 5 degrees and less than or equal to 55 degrees. The projection angle of the focusing lens 20 is the irradiation angle of the spotlight system, effectively ensuring the irradiation range of the spotlight system.

[0052] As Figure 3 shown in the figure, the two electrode plates of the first group of focusing electrodes 21 are respectively the first electrode plate 1A and the second electrode plate 1B, and the two electrode plates of the second group of focusing electrodes 22 are respectively the third electrode plate 2A and the fourth electrode plate 2B.

[0053] As Figure 4As shown, in order to achieve polarization consistency, two sets of circuits need to provide pulse signals with the same magnitude but a 90-degree phase difference at a fixed frequency to drive polarized light in two directions. The focusing lens 20 requires an AC-varying low-frequency signal. During one cycle, at 0 degrees, DR_1A is at a high level and DR_1B is at a low level, driving the angular change of the vertically polarized light of the double-layer liquid crystal. At 90 degrees, DR_2A is at a high level and DR_2B is at a low level, driving the angular change of the horizontally polarized light of the double-layer liquid crystal. At 180 degrees, when DR_1A is at a low level and DR_1B is at a low level, there is no driving voltage, and the angle of the vertically polarized light returns to normal, and the light is unobstructed. At 270 degrees, when DR_2A is at a low level and DR_2B is at a low level, there is no driving voltage, and the angle of the horizontally polarized light returns to normal, and the light is unobstructed. At 360 degrees, the signal change at 0 degrees is repeated. The focusing lens 20 drives the alternating change of the signal between vertical and horizontal, making the transmitted light clearer. The higher the driving voltage, the larger the polarization angle and the larger the angle of the projected light.

[0054] Specifically, the focusing lens 20 is a liquid crystal lens. The focusing principle of the liquid crystal lens mainly utilizes the birefringence characteristic of the liquid crystal. By changing the driving voltage, the rotational alignment change of the liquid crystal molecules inside the lens can be adjusted to form a gradient refractive index distribution, thereby achieving the focusing effect. This application realizes the automatic adjustment of the size of the projected beam of the spotlight, and is used to solve the technical problem that the size of the projected beam of each spotlight needs to be manually adjusted after the spotlight is installed. The present invention can control the size of the light-emitting beam of the light source module 10 through an electronic solution, and the angle varies between 5° and 55°, and cooperates with the one-ten-thousandth cold and warm dimming of the LED lamp beads to achieve high-precision light effect adjustment of the spotlight.

[0055] The structural design of the spotlight system in this application is relatively simple. Only a focusing lens 20 needs to be added in front of the original optical lens, and the hardware circuit adds a control part for the focusing lens 20. The liquid crystal lens can be controlled by connecting the control component 50 through the APP software of the mobile phone. The size change of the projected beam of the spotlight and the cold and warm dimming can be adjusted, and the dimming brightness range varies between 0.01% and 100%, realizing high-precision brightness adjustment and light-emitting angle adjustment of the spotlight.

[0056] The light source module 10 in this application includes an LED lamp and a lens. The lens is located between the LED lamp and the focusing lens 20 and can change the angle of the projected light of the spotlight system.

[0057] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0058] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0059] It should be noted that the terms "first", "second", etc. in the specification, claims and above-mentioned drawings of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order different from those illustrated or described herein.

[0060] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A spotlight system with adjustable emission angle, characterized in that, it includes: a light source module (10) for providing light; a focusing lens (20) arranged on the light-emitting side of the light source module (10), the focusing lens (20) having a first set of focusing electrodes (21) and a second set of focusing electrodes (22) arranged in sequence along the optical axis direction of the focusing lens (20); a control circuit electrically connected to the light source module (10), the control circuit having a first focusing port (311) and a second focusing port (321), the first focusing port (311) being connected to the first set of focusing electrodes (21), the second focusing port (321) being connected to the second set of focusing electrodes (22), both the first focusing port (311) and the second focusing port (321) outputting pulse signals, and the pulse signal output by the first focusing port (311) having a 90-degree phase difference from the pulse signal output by the second focusing port (321), so that the voltage changes at the first set of focusing electrodes (21) and the second set of focusing electrodes (22) are out of sync, enabling the spotlight system to independently adjust the emission angles in the first direction and the second direction respectively; the control circuit includes: a liquid crystal driving circuit (30), the liquid crystal driving circuit (30) including a first driving circuit (31) and a second driving circuit (32), the first driving circuit (31) having the first focusing port (311), the second driving circuit (32) having the second focusing port (321); a voltage control circuit electrically connected to the liquid crystal driving circuit (30) and providing voltage for the liquid crystal driving circuit (30), and the voltages of the first driving circuit (31) and the second driving circuit (32) being the same.

2. The spotlight system with adjustable emission angle according to claim 1, characterized in that, the control circuit further includes: a processor (40), the processor (40) including a first output port (41) and a second output port (42), the first output port (41) being connected to the first driving circuit (31), the second output port (42) being connected to the second driving circuit (32), the first output port (41) outputting a first pulse signal, the second output port (42) outputting a second pulse signal, the first pulse signal and the second pulse signal being of the same magnitude and having a 90-degree phase difference.

3. The spotlight system with adjustable emission angle according to claim 2, characterized in that, the processor (40) is an 8-bit microprocessor.

4. The spotlight system with adjustable emission angle according to claim 1, characterized in that, the voltage output by the voltage control circuit is greater than or equal to 2 volts and less than or equal to 22 volts.

5. The spotlight system with adjustable emission angle according to claim 2, characterized in that, the voltage control circuit includes: a control component (50) that outputs a pulse signal; A voltage trimmer (110) is electrically connected to the control component (50), receives the pulse signal output by the control component (50), and converts the pulse signal into a voltage signal and outputs it to the liquid crystal driving circuit (30).

6. The adjustable-emission-angle spotlight system according to claim 5, wherein, the control component (50) includes one of a wireless control module and a wired control module.

7. The adjustable-emission-angle spotlight system according to claim 5, wherein, the control circuit further includes an LED driver (60), the LED driver (60) is electrically connected to the light source module (10) to control the light emission of the light source module (10), the control component (50) includes a cold signal output port for outputting a cold light signal PWMC and a warm signal output port for outputting a warm light signal PWMW, and the cold signal output port and the warm signal output port are electrically connected to the LED driver (60) to control the cold and warm light dimming of the light source module (10).

8. The adjustable-emission-angle spotlight system according to claim 7, wherein, the control circuit further includes: a switching power supply (70), the switching power supply (70) is electrically connected to the LED driver (60), and converts the input 220V alternating current into a 42V direct current signal and outputs it to the LED driver (60) to supply power to the LED driver (60); a first linear voltage regulator (80), the switching power supply (70) is electrically connected to the first linear voltage regulator (80), the first linear voltage regulator (80) is electrically connected to the control component (50), and converts the 42V direct current signal output by the switching power supply (70) into a 3.3V electrical signal and transmits it to the control component (50).

9. The adjustable-emission-angle spotlight system according to claim 8, wherein, the control circuit further includes: a voltage converter (90), the voltage converter (90) is electrically connected to the switching power supply (70), and converts the 42V direct current signal output by the switching power supply (70) into a 22V electrical signal and transmits it to the liquid crystal driving circuit (30); a second linear voltage regulator (100), the second linear voltage regulator (100) is electrically connected to the voltage converter (90), and converts the 22V electrical signal output by the voltage converter (90) into a 3.3V electrical signal and transmits it to the processor (40).

10. The adjustable-emission-angle spotlight system according to any one of claims 1 to 9, wherein, the periods of the pulse signals output by the first focusing port and the second focusing port are the same.

11. The adjustable-emission-angle spotlight system according to any one of claims 1 to 9, wherein, the first set of focusing electrodes (21) includes electrode plates arranged in parallel and spaced apart in sequence along the extension direction of the optical axis, and a first focusing region (23) is provided between the two electrode plates; The second set of focusing electrodes (22) includes electrode plates arranged in parallel and spaced apart in sequence along the extending direction of the optical axis. A second focusing region (24) is provided between the two electrode plates. A change in one of the first focusing region (23) and the second focusing region (24) can change the angle of the light in the first direction transmitted through the focusing lens (20), and a change in the other of the first focusing region (23) and the second focusing region (24) can change the angle of the light in the second direction transmitted through the focusing lens (20). The first direction is perpendicular to the second direction.

12. The spotlight system with adjustable exit angle according to any one of claims 1 to 9, characterized in that the projection angle of the focusing lens (20) is greater than or equal to 5 degrees and less than or equal to 55 degrees.

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