Light shape control system and lighting device

Abstract

This utility model discloses a light pattern control system and a lighting device. The light pattern control system includes: a central light source; peripheral light sources arranged around the central light source; a light pattern control component, which outputs a light pattern control trigger signal when triggered; and a light source drive control circuit, the input terminal of which is connected to the light pattern control component, and the output terminal of which is connected to the controlled terminals of the central light source and the peripheral light sources. The light source drive control circuit is used to adjust the brightness ratio of the central light source and the peripheral light sources; or adjust the total power of the central light source and the peripheral light sources; or adjust both the brightness ratio and the total power of the central light source and the peripheral light sources when it receives the light pattern control trigger signal. This utility model solves the problem that lighting devices have only one means of adjusting the light pattern, making it impossible to adjust both floodlighting and ambient lighting within the same lighting device.

Description

Technical Field

[0001] This utility model relates to the field of lighting, and in particular to a light pattern control system and lighting equipment. Background Technology

[0002] Flashlights and headlamps typically use a single LED chip or a combination of multiple LED chips to achieve different lighting needs. When using multiple LED chips, long-range or wide-angle lighting can be provided depending on the requirements.

[0003] However, lighting equipment such as flashlights and headlamps, which only offer long-range and wide-angle illumination, have limited means of adjusting the beam pattern and lack devices that can provide both floodlighting and spotlighting. This makes it difficult to meet the diverse needs of different activities in various environments. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a light pattern control system and lighting equipment to solve the problem that the lighting equipment has only one means of adjusting the light pattern and cannot complete the adjustment of floodlight and flood illumination in the same lighting equipment.

[0005] The technical solution of this utility model is as follows:

[0006] A light-shaped control system, comprising:

[0007] Central light source;

[0008] Peripheral light sources, which are arranged around the central light source;

[0009] A light pattern controller, which outputs a light pattern control trigger signal when triggered;

[0010] A light source driving control circuit is provided, wherein the input terminal of the light source driving control circuit is connected to the light shape control component, and the output terminal of the light source driving control circuit is connected to the controlled terminals of the central light source and the peripheral light source. The light source driving control circuit is used to adjust the brightness ratio of the central light source and the peripheral light source; or adjust the total power of the central light source and the peripheral light source; or adjust the brightness ratio of the central light source and the peripheral light source and adjust the total power of the central light source and the peripheral light source when receiving a light shape control trigger signal.

[0011] Optionally, the central light source includes at least one central LED chip, and the peripheral light source includes multiple peripheral LED chips arranged around the central light source.

[0012] Optionally, the light source driving control circuit includes:

[0013] A controller, wherein the controller is configured to output a light source ratio control signal and / or a power control signal when the light pattern control trigger signal is received;

[0014] A proportional control circuit is provided, wherein the input terminal of the proportional control circuit is connected to the output terminal of the controller, and the output terminal of the proportional control circuit is connected to the input terminal of the central light source and the input terminal of the peripheral light source. The proportional control circuit is used to adjust the brightness ratio of the central light source and the peripheral light source when it receives the light source proportional control signal.

[0015] A power control circuit is provided, wherein the input terminal of the power control circuit is connected to the output terminal of the controller, and the output terminal of the power control circuit is connected to the input terminal of the central light source and the input terminal of the peripheral light source. The power control circuit is used to adjust the total power of the central light source and the peripheral light source when receiving the power control signal.

[0016] Optionally, the light shape control system further includes:

[0017] A brightness control component is connected to the input terminal of the light source driving control circuit. The brightness control component is used to output a brightness control trigger signal to the light source driving control circuit when it is triggered.

[0018] The light source drive control circuit is used to adjust the brightness of the central light source and / or the peripheral light source when it receives the brightness control trigger signal.

[0019] Optionally, the light shape control system further includes:

[0020] A temperature detection circuit is provided, the output of which is connected to the input of the light source driving control circuit. The temperature detection circuit is used to detect the ambient temperature and output a temperature detection signal to the light source driving control circuit.

[0021] The light source drive control circuit is used to control the central light source to operate at a first power and the peripheral light source to operate at a second power when the ambient temperature is determined to be too high based on the temperature detection signal, wherein the first power is greater than the second power.

[0022] Optionally, the light shape control system further includes:

[0023] Battery pack;

[0024] The power supply circuit has its input terminal connected to the output terminal of the battery pack, and its output terminal connected to the power supply terminals of the central light source, the peripheral light source, and the light source drive control circuit. The power supply circuit is used to convert the output voltage of the battery pack and supply power to the central light source, the peripheral light source, and the light source drive control circuit.

[0025] Optionally, the light shape control system further includes:

[0026] A voltage detection circuit is provided, wherein the detection terminal of the voltage detection circuit is connected to the output terminal of the battery pack, and the output terminal of the voltage detection circuit is connected to the input terminal of the light source driving control circuit. The voltage detection circuit is used to detect the output voltage of the battery pack and output a corresponding voltage detection signal to the light source driving control circuit.

[0027] This utility model also proposes a lighting device, including a device body and a light pattern control system as described above, wherein the device body forms an accommodating cavity and the light pattern control system is disposed within the device body.

[0028] Optionally, the lighting device further includes:

[0029] A zoom lens group is disposed inside the main body of the device. The central principal optical axis of the zoom lens group is on the same horizontal line as the central principal optical axis of the central light source in the light shape control system. The zoom lens group is used to refract the light emitted by the central light source and the peripheral light source in the light shape control system before emitting it.

[0030] Optionally, the zoom lens group includes an inner lens and an outer expander, the inner lens being fixed inside the outer expander, and the inner lens and the outer expander having the same central principal optical axis.

[0031] This utility model's technical solution comprises a light pattern control system consisting of a central light source, peripheral light sources, a light pattern control component, and a light source drive control circuit. The peripheral light sources are arranged around the central light source. The light pattern control component, when triggered, outputs a light pattern control trigger signal to the light source drive control circuit. The input terminal of the light source drive control circuit is connected to the light pattern control component, and the output terminal is connected to the controlled terminals of the central and peripheral light sources. Upon receiving the light pattern control trigger signal, the light source drive control circuit adjusts the brightness ratio of the central and peripheral light sources; or adjusts the total power of the central and peripheral light sources; or adjusts both the brightness ratio and the total power of the central and peripheral light sources. Thus, this light pattern control system can adjust the radiant range, illumination area, and brightness of the lighting equipment by adjusting the brightness ratio and total power of the central and peripheral light sources, thereby achieving continuous adjustment from floodlighting to spotlighting and better adapting to various usage scenarios. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0033] Figure 1 This is a functional module diagram of an embodiment of the optical control system of this utility model.

[0034] Figure 2 This is a schematic diagram of the functional modules of the peripheral light source and the central light source of the light shape control system of this utility model.

[0035] Figure 3 This is a functional module schematic diagram of another embodiment of the optical control system of this utility model.

[0036] Figure 4 This is a schematic diagram of the circuit structure of a proportional control circuit in the optical shape control system of this utility model.

[0037] Figure 5 This is a schematic diagram of the circuit structure of a power control circuit in the optical control system of this utility model.

[0038] Figure 6 This is a functional module schematic diagram of another embodiment of the optical control system of this utility model.

[0039] Figure 7This is a schematic diagram of the circuit structure of a voltage detection circuit in the optical control system of this utility model.

[0040] Figure 8 This is a schematic diagram of the optical path when the central light source of the lighting device of this utility model is turned on alone.

[0041] Figure 9 This is a schematic diagram of the optical path when the external light source of the lighting device of this utility model is turned on alone.

[0042] Figure 10 This is a schematic diagram of the optical path when the central light source and the peripheral light source of this utility model are turned on simultaneously.

[0043] Explanation of reference numerals in the attached diagram: 10, Central light source; 11, Central LED chip; 20, Peripheral light source; 21, Peripheral LED chip; 30, Light pattern control component; 40, Light source drive control circuit; 41, Controller; 42, Proportional control circuit; 43, Power control circuit; 50, Brightness control component; 60, Temperature detection circuit; 70, Voltage detection circuit; 80, Battery pack; 90, Power supply circuit; 100, Zoom lens group; 200, Light source. Detailed Implementation

[0044] To make the objectives, technical solutions, and effects of this utility model clearer and more explicit, the present utility model will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0045] In the implementation methods and claims, unless otherwise specified in the text, the terms "a," "an," "the," and "the" may also include plural forms. If the embodiments of this utility model involve descriptions of "first," "second," etc., such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0046] It should be further understood that the term "comprising" as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when an element is referred to as "connected" or "coupled" to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements present. Furthermore, "connected" or "coupled" as used herein can include wireless connections or wireless coupling. The term "and / or" as used herein includes all or any unit and all combinations of one or more associated listed items.

[0047] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0048] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0049] Flashlights and headlamps typically use a single LED chip or a combination of multiple LED chips to achieve different lighting needs. When using multiple LED chips, long-range or wide-angle lighting can be provided depending on the requirements.

[0050] However, lighting equipment such as flashlights and headlamps, which only have long-range and wide-angle lighting, have limited means of adjusting the beam pattern and cannot meet the needs of different activities in different environments.

[0051] To address the aforementioned problems, this utility model proposes a light-shaped control system.

[0052] Reference Figure 1 In one embodiment, the light shape control system includes:

[0053] Central light source 10;

[0054] Peripheral light source 20, which is arranged around the central light source 10;

[0055] A light pattern control element 30 is used to output a light pattern control trigger signal when triggered.

[0056] A light source driving control circuit 40 is provided. The input terminal of the light source driving control circuit 40 is connected to the light pattern control component 30, and the output terminal of the light source driving control circuit 40 is connected to the controlled terminals of the central light source 10 and the peripheral light source 20. The light source driving control circuit 40 is used to adjust the brightness ratio of the central light source 10 and the peripheral light source 20; or adjust the total power of the central light source 10 and the peripheral light source 20; or adjust the brightness ratio of the central light source 10 and the peripheral light source 20 and adjust the total power of the central light source 10 and the peripheral light source 20 when a light pattern control trigger signal is received.

[0057] In this embodiment, the central light source 10 and the peripheral light source 20 can be composed of light-emitting devices such as LED chips or LED beads. The specific number and arrangement of LED chips can be set according to actual conditions and user needs. For example, the LED chips of the peripheral light source 20 can be arranged around the central light source 10. In this way, by controlling the brightness of the central light source 10 and the peripheral light source 20, both long-range and wide-angle lighting can be achieved. For example, increasing the brightness of the central light source 10 and decreasing the brightness of the peripheral light source 20 is the long-range mode; decreasing the brightness of the central light source 10 and increasing the brightness of the peripheral light source 20 is the wide-angle mode. The light pattern control element 30 can be a physical button or a virtual button. The specific number can also be set according to actual conditions. For example, if multiple light pattern modes are set, multiple light pattern control elements 30 can be set accordingly. Virtual buttons can be implemented in conjunction with a touch screen. When a physical button is triggered by a user, the mechanical structure of the button (such as a spring, switch, etc.) undergoes a physical change, causing the circuit to close or open, thereby generating and outputting an electrical signal, i.e., a light pattern control trigger signal, to the light source drive control circuit 40. In addition, physical buttons can be configured to provide tactile feedback (such as resistance or click sensation when pressed) or visual feedback (such as indicator light illumination) to enhance the user experience. Virtual buttons are simulated on the display screen of electronic devices by software, such as capacitive touchscreens, resistive touchscreens, or infrared touchscreens. The light source drive control circuit 40 can be composed of a control chip and electronic components such as resistors and capacitors. While keeping the total power and brightness constant, the brightness ratio of the central light source 10 and the peripheral light source 20 is adjusted to regulate the beam angle. For example, adjusting the duty cycle of the PWM signal to adjust the brightness ratio of the central light source 10 and the peripheral light source 20 can achieve both long-range and near-range floodlighting effects, thus adapting to both near-range floodlighting and long-range searchlighting, switching between working modes and scene requirements. With the brightness ratio of the central light source 10 and the peripheral light source 20 remaining constant (i.e., the beam angle unchanged), adjusting the total power of the light sources to regulate the total brightness allows for personalized illumination needs to be met, thereby improving the user experience and energy efficiency. By simultaneously adjusting the brightness ratio of the central light source 10 and the peripheral light sources 20, as well as the total power of the light sources, the switching between long-distance high-power search lighting and close-range large-area low-light operations can be achieved. The light pattern control system of this solution, when applied to lighting equipment, can achieve continuous adjustment from floodlighting to spotlighting within a single lighting device through the central light source 10, peripheral light sources 20, an optical system, and a light source drive control circuit 40, eliminating the need for multiple lighting devices to implement corresponding floodlighting and spotlighting separately. Thus, the light pattern adjustment in this embodiment can achieve adjustment of range, illumination area, and brightness, better adapting to various usage scenarios.

[0058] This utility model's technical solution comprises a light shape control system consisting of a central light source 10, peripheral light sources 20, a light shape control component 30, and a light source drive control circuit 40. The peripheral light sources 20 are arranged around the central light source 10. The light shape control component 30, when triggered, outputs a light shape control trigger signal to the light source drive control circuit 40. The input terminal of the light source drive control circuit 40 is connected to the light shape control component 30, and the output terminal of the light source drive control circuit 40 is connected to the controlled terminals of the central light source 10 and the peripheral light sources 20. Upon receiving the light shape control trigger signal, the light source drive control circuit 40 adjusts the brightness ratio of the central light source 10 and the peripheral light sources 20; or adjusts the total power of the central light source 10 and the peripheral light sources 20; or adjusts both the brightness ratio and the total power of the central light source 10 and the peripheral light sources 20. Thus, the light pattern control system of this solution can adjust the radiant range, illumination range and brightness of the lighting equipment by adjusting the brightness ratio of the central light source 10 and the peripheral light source 20 as well as the total power of the central light source 10 and the peripheral light source 20, thereby realizing continuous adjustment from floodlighting to spotlighting and better adapting to various usage scenarios.

[0059] Reference Figure 2 In one embodiment, the central light source 10 includes at least one central LED chip 11, and the peripheral light source 20 includes a plurality of peripheral LED chips 21, which are arranged around the central light source 10.

[0060] In this embodiment, the central light source 10 and the peripheral light source 20 can be composed of LED chips. Multiple peripheral LED chips 21 can be arranged in a ring around the central LED chip 11, or arranged in a regular polygon around the central LED chip 11, so as to ensure the uniformity of the light emission of the entire lighting device. The number of peripheral LED chips 21 and central LED chips 11 can also be set according to the actual situation and user needs.

[0061] Reference Figure 3 In one embodiment, the light source driving control circuit 40 includes:

[0062] Controller 41, which is configured to output a light source ratio control signal and / or a power control signal when receiving the light pattern control trigger signal;

[0063] A proportional control circuit 42 is provided, the input terminal of which is connected to the output terminal of the controller 41, and the output terminal of which is connected to the input terminal of the central light source 10 and the input terminal of the peripheral light source 20. The proportional control circuit 42 is used to adjust the brightness ratio of the central light source 10 and the peripheral light source 20 when it receives the light source proportional control signal.

[0064] The power control circuit 43 has its input terminal connected to the output terminal of the controller 41, and its output terminal connected to the input terminal of the central light source 10 and the input terminal of the peripheral light source 20. The power control circuit 43 is used to adjust the total power of the central light source 10 and the peripheral light source 20 when it receives the power control signal.

[0065] In this embodiment, the controller 41 can be a digital signal processor (DSP), a programmable logic device (PLD), a field-programmable gate array (FPGA), a microprocessor, an MCU, or other electronic components. The proportional control circuit 42 can be composed of electronic components such as MOSFETs and resistors. The specific circuit structure of the proportional control circuit 42 can be found in [reference needed]. Figure 4 Configure the settings. The power control circuit 43 can be composed of electronic components such as MOSFETs, resistors, and capacitors. The specific circuit structure of the power control circuit 43 can be found in [reference needed]. Figure 5 The settings are configured. When the controller 41 receives the light pattern control trigger signal, it can output a light source ratio control signal to the light source ratio control circuit 42, or output a power control signal to the power control circuit 43; it can also output a light source ratio control signal to the light source ratio control circuit 42 and a power control signal to the power control circuit 43 simultaneously. For example, in Figure 4, the gates of the two MOSFETs are connected to one output terminal of the controller 41, and the drains of the MOSFETs are connected to the peripheral light source 20 and the central light source 10. In this way, the controller 41 can control the brightness ratio of the peripheral light source 20 and the central light source 10 by outputting PWM signals with different duty cycles to the two MOSFETs. Figure 5 In the circuit, the gates of the two MOSFETs are connected to the same output terminal of the controller 41. The internal resistance of the MOSFETs serves as the current sampling resistor. The controller 41 controls the resistance value to increase or decrease through the input electrical signal, thereby adjusting the total current in the circuit and thus adjusting the total power of the peripheral light source 20 and the central light source 10.

[0066] Reference Figure 1 In one embodiment, the light shape control system further includes:

[0067] A brightness control element 50 is connected to the input terminal of the light source driving control circuit 40. The brightness control element 50 is used to output a brightness control trigger signal to the light source driving control circuit 40 when it is triggered.

[0068] The light source drive control circuit 40 is used to adjust the brightness of the central light source 10 and / or the peripheral light source 20 when it receives the brightness control trigger signal.

[0069] In this embodiment, the brightness control component 50 can be set with reference to the light pattern control component 30 in the above embodiment. The user can adjust the brightness of the central light source 10 or the peripheral light source 20 by triggering the brightness control component 50. The user can also adjust the brightness of the central light source 10 and the peripheral light source 20 at the same time. Specifically, one button can correspond to the central light source 10, one button can correspond to the peripheral light source 20, and one button can correspond to both the central light source 10 and the peripheral light source 20. The specific button settings can be set according to the actual situation and user needs.

[0070] Reference Figure 6 In one embodiment, the light shape control system further includes:

[0071] A temperature detection circuit 60 is provided, the output of which is connected to the input of the light source driving control circuit 40. The temperature detection circuit 60 is used to detect the ambient temperature and output a temperature detection signal to the light source driving control circuit 40.

[0072] The light source drive control circuit 40 is used to control the central light source 10 to operate at a first power and control the peripheral light source 20 to operate at a second power when the ambient temperature is determined to be too high based on the temperature detection signal, wherein the first power is greater than the second power.

[0073] In this embodiment, the temperature detection circuit 60 can be composed of a temperature detection device and electronic components such as capacitors and resistors. The temperature detection device can be a thermocouple, a thermistor, an infrared temperature sensor, or a semiconductor temperature sensor. In this embodiment, the temperature detection circuit 60 can detect the temperature of the environment in the lighting equipment. The light source drive control circuit 40 can control the operating power of the central light source 10 and the peripheral light source 20 according to the temperature detection signal output by the temperature detection circuit 60. When the temperature is too high, the power of the light source is reduced. For example, under normal circumstances, both the central light source 10 and the peripheral light source 20 operate at the first power. When the environment inside the lighting equipment is too hot, it means that the temperature of the lighting equipment will affect the life of the electronic components in the lighting equipment and may cause burns to the user. Therefore, it is necessary to control the power of the light source to be reduced. In this embodiment, by controlling the central light source 10 to continue to operate at the first power and controlling the peripheral light source 20 to operate at a lower second power, the overall power of the light source can be reduced, thereby reducing the overall heat generation of the light source. In this way, while maintaining the intensity of the far-field illumination, the overall power is reduced, thereby reducing the temperature of the lighting equipment.

[0074] Understandably, when the lighting equipment temperature is not overheated, the ambient temperature will not affect the lifespan of the electronic components in the lighting equipment, nor will it pose a risk of burns to the user. Therefore, the light source drive control circuit 40 can control both the central light source 10 and the peripheral light source 20 to operate at a higher first power.

[0075] Reference Figure 6 In one embodiment, the light shape control system further includes:

[0076] Battery pack 80;

[0077] The power supply circuit 90 has its input terminal connected to the output terminal of the battery pack 80, and its output terminal connected to the power supply terminals of the central light source 10, the peripheral light source 20, and the light source drive control circuit 40. The power supply circuit 90 is used to convert the output voltage of the battery pack 80 and then supply power to the central light source 10, the peripheral light source 20, and the light source drive control circuit 40.

[0078] In this embodiment, the battery pack 80 can be composed of multiple dry cell batteries or lithium batteries, which can be selected according to actual conditions and user needs. The power supply circuit 90 can be implemented using a power chip or a DC-DC circuit. The power supply circuit 90 can convert the output voltage of the battery pack 80 into a suitable operating voltage for the central light source 10, the peripheral light source 20, and the light source drive control circuit 40, so as to prevent the central light source 10, the peripheral light source 20, and the light source drive control circuit 40 from receiving too high an operating voltage, which would damage the devices, or receive too low an operating voltage, which would prevent the central light source 10, the peripheral light source 20, and the light source drive control circuit 40 from working properly.

[0079] Reference Figure 6 In one embodiment, the light shape control system further includes:

[0080] A voltage detection circuit 70 is provided, wherein the detection terminal of the voltage detection circuit 70 is connected to the output terminal of the battery pack 80, and the output terminal of the voltage detection circuit 70 is connected to the input terminal of the light source drive control circuit 40. The voltage detection circuit 70 is used to detect the output voltage of the battery pack 80 and output a corresponding voltage detection signal to the light source drive control circuit 40.

[0081] In this embodiment, the voltage detection circuit 70 can be composed of electronic components such as capacitors and resistors. The specific circuit structure of the voltage detection circuit 70 can be referred to... Figure 7The voltage detection circuit 70 can detect the output voltage of the battery pack 80 and output a voltage detection signal to the light source drive control circuit 40. The light source drive control circuit 40 can control the lighting equipment to stop working when it detects an abnormal output voltage of the battery pack 80, such as when the output voltage of the battery pack 80 is too high or too low. If the output voltage is too high, there may be a risk of explosion or damage to electronic components. If the output voltage is too low, it may be that the battery power is insufficient, and at this time, the normal operating voltage of the lighting equipment cannot be provided.

[0082] This utility model also proposes a lighting device.

[0083] In one embodiment, the lighting device includes a device body and a light pattern control system as described above. The device body has a receiving cavity, and the light pattern control system is disposed within the device body. It is understood that since the above-described light pattern control system is used in the lighting device of this utility model, the embodiments of the lighting device of this utility model include all the technical solutions of all embodiments of the above-described light pattern control system, and the achieved technical effects are completely the same, and will not be repeated here. In this embodiment, a printed circuit board may be housed within the device body, and the light pattern control system is disposed on the printed circuit board.

[0084] Reference Figures 8 to 10 In one embodiment, the lighting device further includes:

[0085] A zoom lens group 100 is disposed inside the main body of the device. The central principal optical axis of the zoom lens group 100 is on the same horizontal line as the central principal optical axis of the central light source 10 in the light shape control system. The zoom lens group 100 is used to refract the light emitted by the central light source 10 and the peripheral light source 20 in the light shape control system before emitting it.

[0086] In this embodiment, the light emitted by the light source 200 of the lighting device is refracted after passing through the floodlight area and the focusing area of ​​the zoom lens group and reaches the light-emitting surface of the optical system, forming a brightness distribution curve with a certain emission angle. The light source 200 includes a peripheral light source 20 and a central light source 10. The brightness distribution curve can also be achieved by changing the power ratio of the central light source 10 and the peripheral light source 20. By adjusting the optical path of the peripheral light source 20 and the central light source 10 through the zoom lens group, the effects of collimation in the focusing area and diffusion in the floodlight area can be achieved. The specific optical path can be referred to... Figure 8 , Figure 9 and Figure 10 ,in Figure 8 This is a schematic diagram of the optical path when the central light source 10 is turned on alone. Figure 9 This is a schematic diagram of the optical path when the peripheral light source 20 is turned on alone. Figure 10 This is a schematic diagram of the optical path when the central light source 10 and the peripheral light source 20 are turned on simultaneously.

[0087] In one embodiment, the zoom lens group includes an inner lens and an outer expander, the inner lens being fixed inside the outer expander, and the inner lens and the outer expander having the same central principal optical axis.

[0088] In this embodiment, the focusing surface of the zoom lens group is disposed on the light-emitting surface of the light source of the lighting device; the light source of the lighting device includes a focusing light area and a flood light area; the focusing light area is located inside the flood light area, and both the focusing light area and the flood light area include multiple light-emitting units, each of which is a coaxial light source, and the light-emitting unit can be the LED chip of the peripheral light source 20 and the central light source 10 in the above embodiment; the focusing surface of the inner lens includes a focusing area and a diffusion area, the focusing area is close to the focusing light area, and the diffusion area is close to the flood light area; the focusing area or the diffusion area refracts the received light and can output light spots with different halos.

[0089] It should be understood that the application of this utility model is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A light-shaped control system, characterized in that, include: Central light source; Peripheral light sources, which are arranged around the central light source; A light pattern controller, which outputs a light pattern control trigger signal when triggered; A light source driving control circuit is provided, wherein the input terminal of the light source driving control circuit is connected to the light shape control component, and the output terminal of the light source driving control circuit is connected to the controlled terminals of the central light source and the peripheral light source. The light source driving control circuit is used to adjust the brightness ratio of the central light source and the peripheral light source; or adjust the total power of the central light source and the peripheral light source; or adjust the brightness ratio of the central light source and the peripheral light source and adjust the total power of the central light source and the peripheral light source when receiving a light shape control trigger signal.

2. The light-shaped control system as described in claim 1, characterized in that, The central light source includes at least one central LED chip, and the peripheral light source includes multiple peripheral LED chips arranged around the central light source.

3. The light-shaped control system as described in claim 1, characterized in that, The light source driving control circuit includes: A controller, wherein the controller is configured to output a light source ratio control signal and / or a power control signal when the light pattern control trigger signal is received; A proportional control circuit is provided, wherein the input terminal of the proportional control circuit is connected to the output terminal of the controller, and the output terminal of the proportional control circuit is connected to the input terminal of the central light source and the input terminal of the peripheral light source. The proportional control circuit is used to adjust the brightness ratio of the central light source and the peripheral light source when it receives the light source proportional control signal. A power control circuit is provided, wherein the input terminal of the power control circuit is connected to the output terminal of the controller, and the output terminal of the power control circuit is connected to the input terminal of the central light source and the input terminal of the peripheral light source. The power control circuit is used to adjust the total power of the central light source and the peripheral light source when receiving the power control signal.

4. The light-shaped control system as described in claim 1, characterized in that, The light shape control system also includes: A brightness control component is connected to the input terminal of the light source driving control circuit. The brightness control component is used to output a brightness control trigger signal to the light source driving control circuit when it is triggered. The light source drive control circuit is used to adjust the brightness of the central light source and / or the peripheral light source when it receives the brightness control trigger signal.

5. The light-shaped control system as described in claim 1, characterized in that, The light shape control system also includes: A temperature detection circuit is provided, the output of which is connected to the input of the light source driving control circuit. The temperature detection circuit is used to detect the ambient temperature and output a temperature detection signal to the light source driving control circuit. The light source drive control circuit is used to control the central light source to operate at a first power and the peripheral light source to operate at a second power when the ambient temperature is determined to be too high based on the temperature detection signal, wherein the first power is greater than the second power.

6. The light-shaped control system as described in claim 1, characterized in that, The light shape control system also includes: Battery pack; The power supply circuit has its input terminal connected to the output terminal of the battery pack, and its output terminal connected to the power supply terminals of the central light source, the peripheral light source, and the light source drive control circuit. The power supply circuit is used to convert the output voltage of the battery pack and supply power to the central light source, the peripheral light source, and the light source drive control circuit.

7. The light-shaped control system as described in claim 6, characterized in that, The light shape control system also includes: A voltage detection circuit is provided, wherein the detection terminal of the voltage detection circuit is connected to the output terminal of the battery pack, and the output terminal of the voltage detection circuit is connected to the input terminal of the light source driving control circuit. The voltage detection circuit is used to detect the output voltage of the battery pack and output a corresponding voltage detection signal to the light source driving control circuit.

8. A lighting device, characterized in that, The device includes a main body and a light-shaped control system as described in any one of claims 1-7, wherein the main body has a receiving cavity and the light-shaped control system is disposed within the main body.

9. The lighting device as described in claim 8, characterized in that, The lighting device also includes: A zoom lens group is disposed inside the main body of the device. The central principal optical axis of the zoom lens group is on the same horizontal line as the central principal optical axis of the central light source in the light shape control system. The zoom lens group is used to refract the light emitted by the central light source and the peripheral light source in the light shape control system before emitting it.

10. The lighting device as described in claim 9, characterized in that, The zoom lens group includes an inner lens and an outer expander. The inner lens is fixed inside the outer expander, and the inner lens and the outer expander have the same central principal optical axis.

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