Control method of lighting system

Abstract

The invention discloses a control method of an illumination lighting system. The illumination lighting system comprises a light source module, a lens module and a controller. The method comprises the specific operation steps that the controller detects the current focal length of the lens module and adjusts the size of light beams emitted by the light source module according to the focal length. The size of the emitted light beam is adjusted by changing the focal length of the lens module so as to reduce light loss and energy consumption, that is, the focal length is adjusted by changing the position of the zoom lens assembly in the lens module, and the light emitting area of the light emitting array is controlled through the position of the zoom lens assembly, so that the size of the light beam is matched with that of the zoom lens assembly, the light loss is reduced, and the light emitting efficiency is improved. The energy consumption of the light source module is reduced; a dimming channel and an optical integration channel are arranged on two integration elements on the optical integration assembly, so that a high-beam light beam can penetrate through the dimming channel, and the high-beam characteristic is reserved to the maximum extent; most of low-beam beams can pass through an optical integration channel, and the uniformity of low beams is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of stage lights, and more particularly, to a control method of a lighting light system. BACKGROUND

[0002] In the field of stage art and performing arts, optical lighting systems are an indispensable part, mainly taking stage lights as the carrier, responsible for creating atmosphere, highlighting the main body, conveying emotions, etc. Stage lights can accurately control the brightness, color, angle and distribution of light, presenting a rich visual effect to the audience, and can also promote the development of the plot through dynamic light and shadow changes, and strengthen the stereoscopic sense and immersion of the stage space. With the diversification of performances, the application scenarios of stage lights are constantly expanding, such as in the fields of cultural entertainment, commercial display, sports events, etc. They play an important role and are an irreplaceable technical support in the modern visual presentation system.

[0003] However, the technical architecture of the existing optical lighting system still has significant problems. First, the light source design is highly fixed, and the change of the output light source is mainly limited to power adjustment, that is, the brightness is controlled by increasing or decreasing the current, or the stage effect is presented by simply switching the preset pattern. This single adjustment dimension leads to insufficient adaptability of the system to complex scenes. For example, in the near-far light switching scene, the existing system often only adjusts the brightness by increasing or decreasing the power as a whole, which cannot accurately match the differentiated requirements of light intensity, beam angle, and light distribution density for near and far distances. Near distance requires high uniformity to avoid local overexposure, and far distance requires high light density to ensure illumination intensity. It also lacks dynamic adaptation of core parameters such as beam angle and focusing depth, resulting in poor near-far light adjustment effect and difficulty in meeting the dual needs of fine imaging in the near field and clear coverage in the far field. Second, the energy consumption of the existing system is prominent: to ensure sufficient light intensity for long-distance lighting, the system often runs at high power, even in near-distance scenes, without realizing dynamic energy reduction, which not only wastes energy but also accelerates the aging of the light source and increases the operation and maintenance cost. SUMMARY

[0004] The present application aims to overcome at least one of the defects in the prior art, and provides a control method of a lighting light system to solve the problems of poor adaptation effect and high energy consumption of the existing lighting system in near-far light adjustment.

[0005] The technical solution adopted by the present application is a control method of a lighting light system, which comprises a light source module, a lens module and a controller; comprising the following steps: The controller detects the current focal length of the lens module and adjusts the size of the outgoing light beam of the light source module according to the focal length.

[0006] The controller controls the light source module to emit a light beam, and the light beam is projected after being adjusted by the lens module; the size of the emitted light beam is adjusted by changing the focal length of the lens module, which not only reduces the light loss, but also reduces the power consumption of the light source module by reducing the size of the emitted light beam.

[0007] In order to increase the brightness of the emitted light beam, the method further comprises the following step: The controller increases the brightness of the emitted light beam according to the change of the emitted light beam.

[0008] Since the system maintains a certain amount of heat dissipation, when the emitted light beam decreases, the heat generated by the light source module decreases, and the redundant heat dissipation reduces the temperature of the light source module, thereby improving the light emitting efficiency of the light source module. Specifically, the brightness of the light beam can be increased by increasing the driving current after reducing the light beam.

[0009] In order to fully utilize the redundancy brought by the system adjustment, the driving power of the light beam of the light source module can be further increased to provide better output brightness of the light source module; this method does not need to adjust the heat dissipation function of the system in real time, thereby reducing the complexity of the control system, and creating a temperature control environment by using the redundant heat dissipation, so that the brightness of the emitted light beam which is originally limited by temperature can be further improved to obtain better lighting effect.

[0010] In order to reduce the complexity and effectively obtain the focal length, the lens module comprises a focusing lens assembly, a zoom lens assembly and a fixed lens assembly arranged in sequence on the same light emitting path, and the light source module inputs the emitted light beam to the focusing lens assembly; The zoom lens assembly is movably arranged between the fixed lens assembly and the focusing lens assembly, and the distance between the zoom lens assembly and the fixed lens assembly is changed to adjust the focal length; The controller detects the current focal length of the lens module, specifically, the controller detects the position of the current zoom lens assembly to obtain the current focal length of the lens module.

[0011] By adjusting the position of the zoom lens assembly, the focal length can be accurately obtained, and the complexity of acquisition can be reduced.

[0012] In order to quickly and directly adjust the emitted light beam, the light source module comprises a condensing assembly, a collimating assembly and a light emitting array arranged in sequence; The light emitting array comprises a plurality of light sources; The controller adjusts the size of the emitted light beam of the light source module according to the focal length, specifically, the controller adjusts the size of the emitted light beam by controlling the on-off of one or more light sources in the light emitting array according to the focal length.

[0013] The method realizes the adjustment of the outgoing light beam by directly controlling the light source.

[0014] In order to reduce the control complexity and optimize the control of the original light beam change, the light source is arranged in a light-emitting array, which is arranged in a symmetrical array on the same plane. The light-emitting array includes a plurality of light-emitting areas, which include a central area arranged at the center and annular areas arranged in sequence from the inside to the outside around the central area; the symmetrical array can be axisymmetric or centrosymmetric.

[0015] When the current focal length of the lens module is greater than 50% of the total focal length, the controller controls the central area to be turned on and the peripheral annular areas to be turned off, at this time, the outgoing light beam is reduced, and the size of the light beam formed after the outgoing light beam passes through the focusing lens assembly, the zoom lens assembly and the fixed lens group is matched with the fixed lens group.

[0016] By controlling the light-emitting areas of the light-emitting array to control the size of the outgoing light beam, a variable aperture of the lighting system is realized, which can greatly reduce the complexity of the design, and by matching the size of the light-emitting area and the position of the zoom lens assembly, the size of the outgoing light beam is directly related to the focal length, thereby increasing the responsiveness and reliability.

[0017] In order to further optimize the lighting effect of the lens group at a long focal length, the controller increases the brightness of the outgoing light beam according to the change of the outgoing light beam, specifically: The controller obtains the change of the outgoing light beam according to the state of the light-emitting area being turned on, increases the input power of the light-emitting array according to the number of the light-emitting areas being turned on according to a preset power adjustment scheme, thereby increasing the brightness of the outgoing light beam.

[0018] By reducing the heat dissipation margin of the light-emitting area, the power of the light source that cannot reach the preset power due to the influence of the accumulated heat temperature is restored, and the lighting effect is increased.

[0019] When the current focal length of the lens module is short, the light-emitting array of the light source module is turned on, at this time, the outgoing light beam of the light source module is the largest, the size of the light beam formed after the outgoing light beam of the light source module passes through the focusing lens assembly, the zoom lens assembly and the fixed lens group is matched with the fixed lens group, and the outgoing light beam of the light source module is fully projected by the lens module.

[0020] In order to further optimize the lighting effect of the lens assembly at a short focal length, the controller reduces the input power of the light-emitting area of the central area or increases the input power of the light-emitting area from the inside to the outside to reduce the temperature difference of each area of the light-emitting array caused by heat accumulation and heat transfer efficiency, thereby maximizing the power of the light source module and increasing the reliability and reducing the cost.

[0021] In order to adapt to the adjustment of different focal lengths and further optimize the light efficiency, an optical integration assembly is further arranged between the condensing assembly and the collimating assembly; The optical integration assembly forms an optical integration channel through which light passes, and a light adjustment channel arranged in the optical integration channel, when the original light beam formed by the light emitting area passes through the optical integration assembly, the central part passes through the light adjustment channel and the other part passes through the optical integration channel, forming an integrated light beam with different light fluxes into the condensing assembly; The light flux of the optical integration channel is greater than that of the light adjustment channel.

[0022] The optical integration assembly is used for uniformizing the light beam, the light adjustment channel is used for forming a second functional area different from the optical integration channel, so that the same light beam is subjected to different treatments when passing through the optical integration assembly, only part of the light beam is subjected to optical integration, and the limitation of the light flux makes the part of the light beam passing through the light adjustment channel more efficient, thereby eliminating the problem that the traditional optical integration assembly forcibly uniformizes the whole light beam. And the arrangement of the light adjustment channel fully utilizes the emitted light, maintains the overall light uniformity at short focal length, has less effect on light efficiency at long focal length, and has higher efficiency.

[0023] In order to improve the uniformity, the optical integration assembly comprises a support and at least two integration elements arranged at intervals on the support, and two adjacent integration elements are oppositely arranged. The side of the integration element away from the other integration element is provided with an array of microlens units, and the optical integration channel is formed through the area covered by the array of microlens units on the two integration elements.

[0024] The array of microlens units is used for uniformizing the light, the support is used for fixing the integration element and ensuring the stability of the structure of the integration element, the double integration elements are adopted, and the local compound eye transmission is formed by the array of microlens units to realize the uniformity of the near-focus light.

[0025] In order to stabilize the structure and improve the external visual effect, a light transmission channel formed by a light transmission structure is arranged on the integration element close to one side of the condenser, and the array of microlens units is arranged around the light transmission channel. A through channel is arranged on the integration element close to the light emitting array, the array of microlens units arranged on the covering area of the integration element forms the optical integration channel, and the light transmission channel and the through channel form the light adjustment channel.

[0026] In the mode of upper closed light transmission and lower empty, the light efficiency of the light adjustment channel is further improved, the stability of the structure is ensured, the boundary feeling of the middle part of the light beam is reduced, and the uniformity is improved.

[0027] To maintain the consistency of the beam shape, the cross-section of the dimming channel matches the cross-sectional shape of the optical integration channel, and their centers coincide.

[0028] Shape matching ensures that the shape of the beam remains unchanged during the deformation process, thus reducing the impact of adjustment on the final illumination beam.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Reduce light loss and energy consumption The size of the projected beam is adjusted by the focal length of the lens module. That is, the focal length is determined by the position of the zoom lens component in the lens module, and the position of the zoom lens component controls the light-emitting area of ​​the light-emitting array, that is, the number of specific light sources activated. This makes the size of the beam emitted by the light source module match the zoom lens component. According to the preset scheme, the number of light sources activated is reduced in an orderly manner, thereby satisfying the beam requirements while reducing light loss and the actual energy consumption of the light source module. 2. Ensure uniformity of low beam and focus of high beam. In addition to controlling the changes in the light source, the two integrating elements on the optical integrating component are further optimized. A dimming channel and an optical integrating channel are set on the integrating unit so that the beam can pass through the dimming channel. This avoids or reduces the impact of integration homogenization, and retains the high power characteristics required for the high beam to the greatest extent while ensuring that the low beam can still pass through the optical integrating channel effectively, thus meeting the homogenization requirements of the low beam.

[0030] 3. Achieved variable aperture By controlling the light-emitting area, the size of the light beam can be directly adjusted. Unlike traditional methods, the aperture can be changed synchronously by changing the light source. This allows for better coordination between near and far beams without changing the hardware, thus improving light efficiency. Attached Figure Description

[0031] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the invention. To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0032] Figure 1 The flowchart of a lighting system control method according to the present invention Figure 1 .

[0033] Figure 2 The flowchart of a lighting system control method according to the present invention Figure 2 .

[0034] Figure 3 This is a schematic diagram of the combination of a light source module and a lens module in a lighting system according to the present invention.

[0035] Figure 4 This is a structural diagram of a light source module for a lighting system according to the present invention.

[0036] Figure 5 This is a component diagram of a light source module for a lighting system according to the present invention.

[0037] Figure 6 This is a side view of a light source module of a lighting system according to the present invention.

[0038] Figure 7 The structure of a light-emitting array in a lighting system according to the present invention. Figure 1 .

[0039] Figure 8 The structure of a light-emitting array in a lighting system according to the present invention. Figure 2 .

[0040] Figure 9 This is a structural diagram of a collimation component for a lighting system according to the present invention.

[0041] Figure 10 The structure of an optical integrating component for a lighting system according to the present invention. Figure 1 .

[0042] Figure 11 The structure of an optical integrating component for a lighting system according to the present invention. Figure 2 .

[0043] Figure 12 This is a structural diagram of a lens module of a lighting system according to the present invention.

[0044] Figure label: Light source module 100: Light emission array 110: Light source 111, central region 112, annular region 113; Collimation component 120: First collimating lens 121, second collimating lens 122; Optical integration component 130: Support 131, microlens unit array 132, light transmission channel 133, through channel 134; Concentrating component 140; Lens module 200: focusing lens assembly 210, zoom lens assembly 220, fixed lens assembly 230. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0047] Example 1 Please see Figures 1-3 7-8 and 12, a method for controlling a lighting system, comprising the following steps: S1. The controller detects the current focal length of the lens module 200 and adjusts the size of the emitted beam from the light source module 100 according to the focal length; the size of the emitted beam specifically refers to the size of the cross-section of the emitted beam.

[0048] S11. The controller detects the current position of the zoom lens assembly 220 to obtain the current focal length; The focal length is smallest when the zoom lens assembly 220 and the focusing lens assembly 210 are at their shortest distance; the focal length is largest when the zoom lens assembly 220 and the fixed lens assembly 230 are at their shortest distance.

[0049] S12. The controller adjusts the size of the emitted beam by controlling the switching of one or more light sources 111 in the light-emitting array 110 according to the focal length. When the current focal length of the lens module 200 is greater than 50% of the total focal length, the controller control center area 112 lights up, the annular area 113 turns off, and the size of the focusing beam formed by the light source 111 after passing through the focusing lens assembly 210 matches the zoom lens assembly 220; the light at this time is the farthest light. When the current focal length of the lens module 200 is at its minimum, both the controller control center area 112 and the annular area 113 light up, and the size of the focusing beam formed by the light source 111 after passing through the focusing lens assembly 210 matches the zoom lens assembly 220; the light at this time is the closest light. In this embodiment, the total focal length can be understood as the distance traveled by the zoom lens assembly from the side closest to the focusing lens assembly to the side closest to the fixed lens assembly. When closest to the focusing lens assembly, the focal length is 0%, and when closest to the fixed lens assembly, the focal length is 100%.

[0050] S2. Maintain the heat dissipation state of the light source module 100, and the controller increases the brightness of the emitted beam according to the change of the emitted beam. Because the light source module 100 generates heat when emitting light, the amount of heat is related to the number of LEDs lit and the driving power. A larger number of LEDs or a higher driving power results in a brighter emitted beam and generates more heat. However, with increased power and a larger number of LEDs, the temperature difference between the central region 112 and the edge of the annular region 113 of the light source 111 increases, typically reaching 10-30°C. Excessive temperature can cause the LEDs to exceed their temperature limits, damaging their lifespan. Therefore, it is necessary to ensure that the heat generated by the light source module 100 is consistent with or slightly lower than the heat dissipation to protect the light source module 100. The heat dissipation of the light source module 100 consists of two parts: one part is the heat dissipation provided by its own cooling system, which can consist of a motor and a fan; the other part is the ambient temperature. The parameters of the cooling system are preset and combined with the external environment to maintain a stable heat dissipation, allowing the light source module 100 to operate normally within this heat dissipation range. When the beam changes, the beam is adjusted to fully utilize the redundant heat dissipation.

[0051] S21. The controller obtains the change in the emitted beam based on the state of the illuminated areas. According to the number of illuminated areas, the controller increases the input power of the illuminated areas from the inside out according to the preset power adjustment scheme, thereby increasing the brightness of the emitted beam.

[0052] When the beam switches from low beam to high beam, the controller controls the central area 112 to light up and the annular area 113 to turn off. At this time, the number of lit LEDs decreases, the total heat generation decreases, and there is redundant heat dissipation when the heat dissipation is constant. The driving current of the central area 112 can be gradually increased to improve the brightness of the high beam. The beam emitted by the central area 112 can pass through the dimming channel and is not affected by the optical integration channel, thus preserving the high beam characteristics to the greatest extent.

[0053] When the beam switches from high beam to low beam, the controller illuminates both the central region 112 and the annular region 113. At this time, the number of illuminated LEDs increases, and the total heat generation increases. To ensure that the heat generation is equivalent to the heat dissipation and to protect the LEDs in the central region 112, the driving current of the LEDs in the central region 112 is gradually reduced. The beam emitted from the annular region 113 passes through the microlens unit array 132, where it undergoes homogenization processing. It then merges with the beam emitted from the central region 112 through the dimming channel, ensuring the uniformity of the low beam. Because the driving current of the central region 112 is reduced, the emitted beam power is lowered. After passing through the dimming channel, it is closer to the homogenized beam of the annular region 113, resulting in a better homogenization effect.

[0054] The complexity of the cooling system design is reduced by adjusting the size of the emitted beam to maintain a constant temperature. The cooling system only needs to maintain a stable heat dissipation, while the controller adjusts the beam according to the changes in the beam to increase the beam brightness.

[0055] Example 2 Please see Figures 1-3 7-8 and 12, a control method for a lighting system, the lighting system including a light source module 100, a lens module 200 and a controller, the controller controlling the light source module 100 to emit a light beam and adjusting the focal length of the lens module 200.

[0056] like Figures 4-11As shown, the light source module 100 includes a light-emitting array 110, a collimating component 120, an optical integrating component 130, and a focusing component 140 arranged sequentially in the beam emission direction. The light beam emitted by the light-emitting array 110 passes sequentially through the collimating component 120, the optical integrating component 130, and the focusing component 140. After being focused, the light beam enters the lens module 200 for adjustment. The focusing component 140 can be a condenser lens used to converge the light beam. The collimating component 120 can be a collimating lens, and there can be two or more of them. For example, a first collimating lens 121 and a second collimating lens 122 are provided. The first collimating lens 121 collimates the emitted light, making light with an emission angle parallel or making the light rays tend to be parallel. The second collimating lens 122 is paired with the first collimating lens 121 to collimate the light rays that have passed through the first collimating lens 121 again, making the light rays parallel and ensuring the uniformity of the light. The optical integrating component 130 is used to homogenize light. However, to simultaneously ensure the homogenization of near light and retain the characteristics of far light, the optical integrating component 130 performs different processing on near and far light. The optical integrating component 130 includes two integrating elements and a support 131. The two integrating elements are set at the upper and lower ends of the support 131 and fixed by the support 131. Each integrating element has a microlens unit array 132 on one side and no array on the other side, resulting in one side being an irregular convex surface and the other side being a flat surface. The two integrating elements are arranged opposite each other on the support 131, that is, the flat surfaces face each other and the irregular convex surfaces are far apart from each other. The irregular convex surfaces are respectively close to the focusing component 140 and the collimating component 120 to improve the uniformity of the beam. A light transmission channel 133 is provided in the middle of the integrating element close to the focusing component 140 for... The light beam is transmitted through the light transmission channel 133, which can be equipped with a microlens array with a focal length larger than that of the microlens unit array 132. This further improves the uniformity of the light beam, ensuring both the stability of the integrating element and the amount of light transmitted through the light transmission channel 133. By selecting a microlens unit array with a larger focal length and placing it on the light transmission channel, the microlens unit array with a smaller focal length can homogenize near light, while the microlens unit array with a larger focal length can homogenize farther light, thus achieving a certain degree of homogenization of light beams at different distances. Furthermore, since the smaller the focal length, the greater the light loss through the microlens unit, the light beam transmitted through the microlens unit array with a larger focal length will travel farther than that transmitted through the microlens unit array with a smaller focal length. Within a certain distance range, this ensures both the uniformity of the light and the preservation of the light's characteristics.Lenses, frosted lenses, or diffusers can be used to eliminate the boundary effect of the light beam and improve the visual quality, ensuring both the stability of the integrating element and the light transmission of the light transmission channel 133. A through-channel 134 is provided in the middle of the integrating element near the collimating component 120 for the light beam to pass through. A microlens array with a large focal length can be set on the through-channel 134 to improve the uniformity of the light beam, or a lens can be set to eliminate the boundary effect of the light beam, or no lens can be set to maximize the light transmission. The microlens arrays of the two integrating elements form a light-transmitting optical integrating channel for light dimming to ensure the uniformity of the light. The light transmission channel 133 and the through-channel 134 together form a dimming channel, which is located in the middle of the two integrating elements to ensure the concentration and utilization of the passing light beam. In order to ensure the consistency of the light beam, the cross-section of the dimming channel matches the cross-sectional shape of the optical integrating channel and their centers coincide. In addition, the light flux of the dimming channel is greater than that of the optical integrating channel. The light-emitting array 110 consists of multiple arrayed light sources 111. By arranging the light sources 111 in an array, the light intensity is enhanced, and the uniformity of light is improved to a certain extent. The light sources 111 can be LED beads. When the light sources 111 are lit, they form a light-emitting area. This light-emitting area is divided into a central area 112 and a surrounding annular area 113. There can be multiple annular areas 113, which can be set according to the focal length, but this will not be elaborated here. This embodiment uses one annular area 113. As needed, the controller controls the light emission of different areas to achieve energy savings and improve light utilization.

[0057] like Figure 12 As shown, the lens module 200 includes a fixed lens assembly 230, a zoom lens assembly 220, and a focusing lens assembly 210. The zoom lens assembly 220 is movably disposed between the fixed lens assembly 230 and the focusing lens assembly 210. The light beam emitted by the light source module 100 passes sequentially through the focusing lens assembly 210, the zoom lens assembly 220, and the fixed lens assembly 230. The position of the zoom lens determines the focal length of the lens module 200; the closer the zoom lens is to the fixed lens assembly 230, the longer the focal length; the closer the zoom lens assembly 220 is to the focusing lens assembly 210, the shorter the focal length.

[0058] The control method for a lighting system includes the following steps: S1. The controller detects the current focal length of the lens module 200 and adjusts the size of the beam emitted by the light source module 100 according to the focal length; the size of the emitted beam specifically refers to the size of the cross-section of the emitted beam.

[0059] S11. The controller detects the current position of the zoom lens assembly 220 to obtain the current focal length; The focal length is smallest when the zoom lens assembly 220 and the focusing lens assembly 210 are at their shortest distance; the focal length is largest when the zoom lens assembly 220 and the fixed lens assembly 230 are at their shortest distance.

[0060] S12. The controller adjusts the size of the emitted beam by controlling the switching of one or more light sources 111 in the light-emitting array 110 according to the focal length. When the current focal length of the lens module 200 is at its maximum, the controller control center area 112 lights up and the annular area 113 turns off. The size of the focusing beam formed by the light source 111 after passing through the focusing lens assembly 210 matches the size of the zoom lens assembly 220. At this time, the light is the farthest light. When the current focal length of the lens module 200 is at its minimum, both the controller control center area 112 and the annular area 113 light up. The size of the focusing beam formed by the light source 111 after passing through the focusing lens assembly 210 matches the size of the zoom lens assembly 220. At this time, the light is the closest light.

[0061] S2. Maintain the heat dissipation state of the light source module 100, and the controller increases the brightness of the emitted beam according to the change of the emitted beam. Because the light source module 100 generates heat when emitting light, the amount of heat is related to the number of LEDs lit and the driving power. A larger number of LEDs or a higher driving power results in a brighter emitted beam and generates more heat. However, with increased power and a larger number of LEDs, the temperature difference between the central region 112 and the edge of the annular region 113 of the light source 111 increases, typically reaching 10-30°C. Excessive temperature can cause the LEDs to exceed their temperature limits, damaging their lifespan. Therefore, it is necessary to ensure that the heat generated by the light source module 100 is consistent with or slightly lower than the heat dissipation to protect the light source module 100. The heat dissipation of the light source module 100 consists of two parts: one part is the heat dissipation provided by its own cooling system, which can consist of a motor and a fan; the other part is the ambient temperature. The parameters of the cooling system are preset and combined with the external environment to maintain a stable heat dissipation, allowing the light source module 100 to operate normally within this heat dissipation range. When the beam changes, the beam is adjusted to fully utilize the redundant heat dissipation.

[0062] S21. The controller obtains the change in the emitted beam based on the state of the illuminated areas. According to the number of illuminated areas, the controller increases the input power of the illuminated areas from the inside out according to the preset power adjustment scheme, thereby increasing the brightness of the emitted beam.

[0063] When the beam switches from low beam to high beam, the controller controls the central area 112 to light up and the annular area 113 to turn off. At this time, the number of lit LEDs decreases, the total heat generation decreases, and there is redundant heat dissipation when the heat dissipation is constant. The driving current of the central area 112 can be gradually increased to improve the brightness of the high beam. The beam emitted by the central area 112 can pass through the dimming channel and is not affected by the optical integration channel, thus preserving the high beam characteristics to the greatest extent.

[0064] When the beam switches from high beam to low beam, the controller illuminates both the central region 112 and the annular region 113. At this time, the number of illuminated LEDs increases, and the total heat generation increases. To ensure that the heat generation is equivalent to the heat dissipation and to protect the LEDs in the central region 112, the driving current of the LEDs in the central region 112 is gradually reduced. The beam emitted from the annular region 113 passes through the microlens unit array 132, where it undergoes homogenization processing. It then merges with the beam emitted from the central region 112 through the dimming channel, ensuring the uniformity of the low beam. Because the driving current of the central region 112 is reduced, the beam power is lowered, and after passing through the dimming channel, it is closer to the homogenized beam of the annular region 113, resulting in a better homogenization effect.

[0065] The complexity of the cooling system design is reduced by adjusting the beam to maintain a constant temperature. The cooling system only needs to provide a stable amount of heat dissipation, while the controller adjusts the beam according to the changes in the beam to increase the beam brightness.

[0066] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0067] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementation methods. Clearly, many modifications and variations can be made based on the content of this specification. The selection and specific description of these embodiments in this specification are intended to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A control method for a lighting system, the lighting system comprising: A light source module, a lens module, and a controller; characterized by comprising the following steps: The controller detects the current focal length of the lens module and adjusts the size of the emitted beam from the light source module according to the focal length.

2. The control method for a lighting system according to claim 1, characterized in that, Step: After adjusting the size of the emitted beam from the light source module according to the focal length, the following steps are also included: To maintain the heat dissipation of the light source module, the controller increases the brightness of the emitted beam according to the changes in the emitted beam.

3. The control method for a lighting system according to claim 1, characterized in that, The lens module includes: a focusing lens assembly, a zoom lens assembly, and a fixed lens assembly arranged sequentially on the same emitted light path; the light source module inputs the emitted light beam to the focusing lens assembly. The zoom lens assembly is movably disposed between the fixed lens assembly and the focusing lens assembly, and the focal length is adjusted by changing the distance between the zoom lens assembly and the fixed lens assembly and the focusing lens assembly. Step: The controller detects the current focal length of the lens module, specifically: the controller detects the position of the current zoom lens assembly to obtain the current focal length of the lens module.

4. A control method for a lighting system according to any one of claims 1-3, characterized in that, The light source module includes: a focusing component, a collimation component, and a light-emitting array arranged sequentially; The light-emitting array includes multiple light sources; Step: Adjust the size of the emitted beam from the light source module according to the focal length. Specifically, the controller adjusts the size of the emitted beam by controlling the switching of one or more light sources in the light-emitting array according to the focal length.

5. The control method for a lighting system according to claim 4, characterized in that, The light sources are arranged in a symmetrical array on the same plane within the light-emitting array. The light-emitting array includes several light-emitting regions, including: a central region located at the center, and an annular region arranged sequentially from the inside to the outside around the central region; When the current focal length of the lens module is greater than 50% of the total focal length, the controller control center area lights up and the ring area turns off. At this time, the size of the focusing beam formed after the emitted beam passes through the focusing lens assembly matches the zoom lens assembly.

6. The control method for a lighting system according to claim 5, characterized in that, Steps: The controller increases the brightness of the emitted beam based on changes in the emitted beam, specifically as follows: The controller obtains the changes in the emitted beam based on the lighting status of the light-emitting areas. According to the number of lit light-emitting areas, it increases the input power of the light-emitting areas according to the preset power adjustment scheme, thereby increasing the brightness of the emitted beam.

7. The control method for a lighting system according to claim 6, characterized in that, An optical integrating component is also provided between the focusing component and the collimating component; The optical integrating component forms a light-transmitting optical integrating channel and a dimming channel disposed in the optical integrating channel. When the original light beam formed by the light-emitting area passes through the optical integrating component, the central part passes through the dimming channel and the other parts pass through the optical integrating channel, forming integrated light beams with different light fluxes that enter the focusing component. The luminous flux of the dimming channel is greater than that of the optical integration channel.

8. The control method for a lighting system according to claim 7, characterized in that, The optical integrating assembly includes: a support, and at least two integrating elements spaced apart on the support, with two adjacent integrating elements facing each other; A microlens unit array is provided on the side of the integrating element away from the other integrating element, and the optical integrating channel is formed through the area covered by the microlens unit array on the two integrating elements.

9. A control method for a lighting system according to claim 8, characterized in that, The integrating element near the condenser lens has a light-transmitting channel formed by a light-transmitting structure, and the microlens unit array is arranged around the light-transmitting channel; An integrating element near the light-emitting array is provided with a through-channel, and the microlens unit array is arranged in the coverage area of ​​the integrating element to form an optical integrating channel. The light-transmitting channel and the through-channel form a dimming channel.

10. A control method for a lighting system according to claim 7, characterized in that, The cross-section of the dimming channel matches the cross-sectional shape of the optical integration channel, and their centers coincide.

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