Energy-saving LED module optical system with adjustable lens

Abstract

The application provides an energy-saving LED module optical system with an adjustable lens, and relates to the technical field of illumination optics. The system comprises an LED array, a constant-current driver, an adjustable lens group, and an illumination sensor. The LED array outputs a stable primary light beam, and is powered by the constant-current driver. The adjustable lens group performs zooming and shaping on the primary light beam and outputs an intermediate light beam. The energy-saving LED module optical system with the adjustable lens can realize continuous zooming and precise shaping of the light beam by combining an electrowetting liquid lens array and a collimating microstructure element, greatly improving the optical adjustment flexibility and precision of the system. The system can dynamically adjust the balance between luminous flux and power consumption according to different illumination requirements, optimize light efficiency, and achieve energy-saving effects. By integrating the illumination sensor and a feedback adjustment mechanism, the system can monitor the illumination parameters in real time, ensuring stable and efficient illumination effects.

Description

Technical Field

[0001] This invention relates to the field of lighting optics technology, specifically to an energy-saving LED module optical system with an adjustable lens. Background Technology

[0002] LED light sources are gradually replacing traditional light sources due to their high energy efficiency and long lifespan, becoming the mainstream for road lighting, indoor lighting, and stage lighting. To achieve light distribution control, existing LED modules are typically used in conjunction with optical lenses. These lenses are mostly made of optical plastics or glass, and their non-imaging optical design achieves refraction or reflection light distribution. Different scenarios have different requirements for light distribution; for example, road lighting emphasizes uniform illuminance, indoor lighting focuses on highlighting key areas, and stage lighting requires variable light spots. To meet these application differences, existing solutions often adjust the light distribution by fixing the lens or replacing lens assemblies. Some products employ multi-segment refraction or freeform surface designs, which can already meet different lighting needs to a certain extent.

[0003] The core drawback of existing lens systems lies in their limited adjustment methods and insufficient flexibility. Most lenses have fixed structures, requiring replacement of components or changes in module arrangement to achieve different light distributions, resulting in complex operation and high costs. While a few adjustable lenses can change the beam angle, they rely on mechanical sliding or rotation, leading to complex structures, poor stability, inconvenient maintenance, and increased energy consumption. This makes it difficult for existing technologies to strike a balance between energy saving and diverse lighting needs. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an energy-saving LED module optical system with adjustable lenses. The technical problem this invention aims to solve is: how to achieve precise focusing and shaping of the light beam by combining an electrowetting liquid lens array and collimating microstructure elements, thereby optimizing the balance between light transmission and power consumption, improving luminous efficiency, and achieving energy saving.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an energy-saving LED module optical system with adjustable lens, comprising: an LED array, wherein the LED array outputs a stable primary beam, and the LED array is powered by a constant current driver.

[0006] An adjustable lens group is provided to zoom and shape the primary beam and output an intermediate beam. The adjustable lens group consists of an electrowetting liquid lens array and a collimating microstructure element. The zoom is continuously adjusted by the electrowetting liquid lens array, and the shaping is collimated and corrected by the collimating microstructure element.

[0007] An illuminance sensor detects the illumination parameters of the illumination area of ​​the intermediate beam and generates a feedback signal.

[0008] The data acquisition and recording unit acquires and stores the operating status of the constant current driver, the electrowetting liquid lens array, and the illuminance sensor, and generates operating parameters.

[0009] The memory stores a preset target light distribution curve.

[0010] The controller constructs a dual-objective optimization model of optical flux and power consumption based on the target light distribution curve and the feedback signal. The dual-objective optimization model of optical flux and power consumption converges the intermediate beam into an optimized beam.

[0011] The blanking component absorbs and shields the high-angle scattering components in the optimized beam and outputs the terminal beam. The blanking component is a composite integrated structure, which includes a nanopore array blanking film and a honeycomb blackened grid. The absorption is selectively performed by the nanopore array, and the shielding is achieved by the honeycomb blackened grid to block residual spill light, thereby reducing glare and improving effective light efficiency.

[0012] The output port projects the terminal beam onto the target lighting area and transmits the operating parameters back to the controller for subsequent scene template updates and energy-saving operation.

[0013] Preferably, the constant current driver includes a temperature compensation module. When the ambient temperature rises, the temperature compensation module reduces the driving current, and when the ambient temperature drops, the temperature compensation module increases the driving current to maintain stable light output of the primary beam.

[0014] Preferably, the electrowetting liquid lens array adjusts the primary beam by changing the curvature of the liquid interface, and the collimating microstructure element collimates and shapes the zoomed beam to output the intermediate beam.

[0015] Preferably, the liquid interface curvature adjustment range of the electrowetting liquid lens array is 0.01. -0.10 The collimating microstructure element is composed of multiple refractive units, and the angle difference between the light-emitting surface of the multiple refractive units and the optical axis is <2°.

[0016] Preferably, the illuminance sensor has a detection range of 1 lux to 50,000 lux and a detection accuracy of ≥ ±2%.

[0017] Preferably, the operating parameters include current parameters, curvature parameters, and illuminance parameters.

[0018] Preferably, the dual-objective optimization model for optical throughput and power consumption is constructed using a weighted normalization function, the objective function of which is:

[0019]

[0020] in, To optimize the objective function, a dimensionless parameter is used to evaluate the overall performance of the system in terms of optical throughput and power consumption. This represents the system's real-time luminous flux, expressed in lm. The target luminous flux is expressed in lm, and a reference value is given by the light distribution curve in the memory. P is the real-time power consumption of the system, expressed in watts (W). Reference power consumption, in watts (W). This is the optical flux weighting coefficient, dimensionless, used to adjust the influence of optical flux on the objective function. This is a dimensionless power consumption weighting coefficient used to adjust the impact of power consumption on the objective function.

[0021] Preferably, the pore size of the nanopore array blanking film is in the range of 50nm-200nm and the film thickness is in the range of 100nm-500nm, which is used to selectively absorb high-angle scattered light. The unit pore size of the honeycomb blackened grating is 1mm-3mm and the thickness is 10mm-20mm, so as to achieve high-angle shielding and paraxial transmission.

[0022] Preferably, the backhaul uses a wireless communication interface, and the operating parameters are timestamped.

[0023] This invention provides an energy-saving LED module optical system with an adjustable lens. It has the following advantages:

[0024] This invention, by combining an electrowetting liquid lens array and collimating microstructure elements, enables continuous zooming and precise beam shaping, significantly improving the system's optical adjustment flexibility and accuracy. The system can dynamically adjust the balance between luminous flux and power consumption according to different lighting requirements, optimizing luminous efficacy while achieving energy savings. Through the integration of an illuminance sensor and a feedback adjustment mechanism, the system can monitor illumination parameters in real time, ensuring stable and efficient lighting effects.

[0025] This energy-saving LED module optical system with adjustable lenses effectively absorbs and shields high-angle scattered light through an innovative blanking component, employing a nanopore array and a honeycomb blackened grid design. This reduces glare and increases effective luminous flux, significantly improving lighting quality. The energy-saving LED module optical system not only adapts to the requirements of various lighting scenarios but also boasts high stability and reliability, avoiding the drawbacks of traditional adjustable lenses such as complex structures and difficult maintenance. It features low energy consumption and a long service life, making it suitable for a wide range of applications. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the optical system structure of an adjustable lens energy-saving LED module;

[0027] Figure 2 This is a schematic diagram of the optical path of the LED array and the adjustable lens group;

[0028] Figure 3 This is a schematic diagram of an electrowetting liquid lens array and collimating microstructure elements;

[0029] Figure 4 This is a schematic diagram of the operation of the illuminance sensor and feedback system;

[0030] Figure 5 This is a schematic diagram of the working principle of the optical transmission and power consumption optimization model. Detailed Implementation

[0031] 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.

[0032] Example 1

[0033] like Figure 1-5 As shown, this embodiment of the invention provides an energy-saving LED module optical system with an adjustable lens, including an LED array. The LED array outputs a stable primary beam, and the LED array is powered by a constant current driver. The constant current driver includes a temperature compensation module. When the ambient temperature rises, the temperature compensation module reduces the driving current; when the ambient temperature decreases, the temperature compensation module increases the driving current.

[0034] The temperature compensation module adjusts the current according to changes in ambient temperature to ensure that the operation of the LED array is not affected by temperature fluctuations.

[0035] When the temperature rises:

[0036] Principle: As the ambient temperature rises, the internal temperature of the LED array also increases. Excessive current can cause the LED array to overheat, reducing luminous efficacy or even causing damage. The temperature compensation module actively reduces the drive current.

[0037] For example, when the ambient temperature rises from 25°C to 35°C, the temperature compensation module automatically reduces the drive current. For instance, it adjusts the original 700mA drive current to 650mA. This reduced current helps slow the temperature rise of the LED array, thus preventing overheating.

[0038] When the temperature decreases:

[0039] When the ambient temperature decreases, the operating temperature of the LED array also decreases, and low temperature may lead to a decrease in the efficiency of the LED.

[0040] Implementation: For example, when the ambient temperature drops from 25°C to 15°C, the temperature compensation module will increase the drive current. Assume the drive current increases from 700mA to 750mA. By increasing the current, the luminous flux of the LED array will increase, ensuring stable light output at low temperatures.

[0041] The adjustable lens group zooms and shapes the primary beam, outputting an intermediate beam. It consists of an electrowetting liquid lens array and a collimating microstructure element. Zooming is continuously adjusted via the electrowetting liquid lens array, while collimation is corrected using the collimating microstructure element. The electrowetting liquid lens array adjusts the primary beam's zoom by changing the curvature of the liquid interface, and the collimating microstructure element collimates and shapes the zoomed beam to output the intermediate beam. The liquid interface curvature adjustment range of the electrowetting liquid lens array is 0.01. -0.10 The collimation microstructure element is composed of multiple refractive units, and the angle difference between the light-emitting surface of the multiple refractive units and the optical axis is <2°.

[0042] Zoom adjustment of electrowetting liquid lens array:

[0043] Electrowetting liquid lens arrays achieve continuous zoom adjustment of the light beam by adjusting the curvature of the liquid interface. The adjustment range of the liquid interface curvature is 0.01. Up to 0.10 The focal length of the beam can be finely adjusted as needed. By changing the curvature of the liquid interface, the divergence angle of the beam can be changed, thereby adjusting the focal position of the primary beam and achieving flexible adjustment of the beam angle and focus under different lighting conditions.

[0044] For example, when the curvature of the liquid interface is set to 0.05 In this way, the lens array can adjust the focus of the primary beam to different positions to meet the needs of different lighting scenarios. The adjustment process is continuous, enabling seamless beam zooming and ensuring the adaptability of the beam in various usage environments.

[0045] Shaping and correction of collimated microstructure elements:

[0046] After the electrowetting liquid lens array completes the zoom adjustment, the light beam is collimated and shaped by a collimating microstructure element. This collimating microstructure element consists of multiple refractive units, with the angular difference between the light-emitting surface of each unit and the optical axis being less than 2°. Through microstructural design, the refractive units ensure that the zoomed light beam maintains a certain directionality, preventing severe scattering or deviation after passing through the lens.

[0047] The refraction angle and shape of each refractive element are precisely designed to minimize beam deviation. Through collimation correction, the system can output a stable, focused, and unbiased intermediate beam, providing a high-quality light source for subsequent optical processing.

[0048] An illuminance sensor detects the illumination parameters of the area illuminated by the central beam of light and generates a feedback signal. The illuminance sensor has a detection range of 1 lux to 50,000 lux and a detection accuracy of ≥ ±2%.

[0049] The illuminance sensor employs high-sensitivity photoelectric detection technology to measure the light intensity of an illuminated area in real time. With a detection range of 1 lux to 50,000 lux, it can adapt to different lighting needs from low-light to high-light environments. The sensor accurately captures changes in illumination within the illuminated area, ensuring the system can be finely adjusted for different scenarios.

[0050] To ensure measurement accuracy, the illuminance sensor achieves a detection precision of ±2%. For example, when the measured value is 1000 lux, the actual error range of the illuminance sensor is ±20 lux, meaning the actual illuminance value will be between 980 lux and 1020 lux. This high-precision detection ensures that the system can accurately adjust the light source output based on real-time feedback, avoiding the impact of light fluctuations on the lighting effect.

[0051] The data acquisition and recording unit collects and stores the operating status of the constant current driver, the electrowetting liquid lens array, and the illuminance sensor, generating operating parameters. These operating parameters include current parameters, curvature parameters, and illuminance parameters.

[0052] Current parameter acquisition for constant current driver:

[0053] A constant current driver drives the LED array by providing a stable current, ensuring a stable output luminous flux. In this embodiment, the data acquisition and recording unit monitors the current output of the constant current driver in real time and records the current parameters.

[0054] Assuming the constant current driver operates within a current range of 200mA to 1000mA, the system automatically adjusts the current output based on actual lighting requirements. For example, under normal operating conditions, the constant current driver draws 600mA, at which point the luminous flux of the LED array is 800 lumens.

[0055] Curvature parameter acquisition of electrowetting liquid lens array:

[0056] The electrowetting liquid lens array achieves beam zoom by adjusting the curvature of the liquid interface. The data acquisition and recording unit monitors and records the curvature parameters of the liquid lens array in real time. The curvature range of the liquid interface is 0.01. Up to 0.10 The data acquisition unit is within this range, every 0.01 Sampling is performed to ensure the accuracy of zoom adjustment. For example, when the curvature parameter is 0.05... The system automatically adjusts the beam's focal position to suit the lighting requirements. Recording the curvature parameters helps in subsequent adjustments to the beam's focal length and shape.

[0057] Illuminance parameter acquisition from the illuminance sensor:

[0058] The primary task of the illuminance sensor is to detect the light intensity of the illuminated area in real time. The illuminance detection range is from 1 lux to 50,000 lux, and the data acquisition and recording unit periodically records the illuminance values ​​fed back by the sensor.

[0059] For example, during a sampling process, if the illuminance sensor detects an illuminance value of 1200 lux, the recording unit saves 1200 lux as an illuminance parameter so that the system can subsequently optimize and adjust the light intensity. Based on this parameter, the controller can adjust the light output of the LED module to maintain the set target illuminance.

[0060] The memory stores the preset target light distribution curve.

[0061] The controller constructs a dual-objective optimization model for optical flux and power consumption based on the target light distribution curve and feedback signals. This model converges the intermediate beam into the optimized beam. The dual-objective optimization model is constructed using a weighted normalization function, the objective function of which is:

[0062]

[0063] in, To optimize the objective function, a dimensionless parameter is used to evaluate the overall performance of the system in terms of optical throughput and power consumption. This represents the system's real-time luminous flux, expressed in lm. The target luminous flux is expressed in lm, with a reference value provided by the light distribution curve in memory. P represents the real-time power consumption of the system, expressed in watts (W). Reference power consumption, in watts (W). This is the optical flux weighting coefficient, dimensionless, used to adjust the influence of optical flux on the objective function. This is a power consumption weighting coefficient, dimensionless.

[0064] The blanking component absorbs and shields high-angle scattered components in the optimized beam, outputting the final beam. The blanking component is a composite integrated structure comprising a nanopore array blanking film and a honeycomb blackened grating. Absorption is selectively achieved using the nanopore array, while shielding is achieved using the honeycomb blackened grating to block residual spillover light, reducing glare and improving effective luminous efficiency. The nanopore array blanking film has an aperture range of 50nm-200nm and a thickness range of 100nm-500nm, used for selective absorption of high-angle scattered light. The honeycomb blackened grating has a unit aperture of 1mm-3mm and a thickness of 10mm-20mm to achieve high-angle shielding and paraxial transmission.

[0065] The output port projects the terminal beam onto the target lighting area and transmits operating parameters back to the controller for subsequent scene template updates and energy-saving operation. The transmission uses a wireless communication interface, and the operating parameters are timestamped.

[0066] Example 2

[0067] This embodiment constructs a dual-objective optimization model for optical flux and power consumption, and optimizes the balance between optical flux and power consumption according to a weighted normalization function, thereby achieving efficient beam optimization and energy saving.

[0068] 1. Construction of the objective function

[0069] The dual-objective optimization model for optical throughput and power consumption is constructed using a weighted normalization function, the objective function of which is:

[0070]

[0071] in, To optimize the objective function, a dimensionless parameter is used to evaluate the overall performance of the system in terms of optical throughput and power consumption. This represents the system's real-time luminous flux, expressed in lm. The target luminous flux is expressed in lm, with a reference value provided by the light distribution curve in memory. P represents the real-time power consumption of the system, expressed in watts (W). Reference power consumption, in watts (W). This is the optical flux weighting coefficient, dimensionless, used to adjust the influence of optical flux on the objective function. This is a power consumption weighting coefficient, dimensionless.

[0072] 2. Controller operation process

[0073] The controller calculates the objective function in real time based on the real-time feedback signal and optimizes the balance between optical flux and power consumption based on the weighted objective function.

[0074] Acquisition and calculation of luminous flux and power consumption:

[0075] Suppose we have the following data:

[0076] Current luminous flux =850lm.

[0077] Target luminous flux =1000lm.

[0078] Current power consumption P=15W.

[0079] Reference power consumption =20W.

[0080] The objective function is then calculated as follows:

[0081]

[0082] Assuming weighting coefficients =0.6, =0.4, then the objective function is:

[0083]

[0084] 3. Optimization process

[0085] The controller compares the objective function with the current operating state of the system and adjusts the parameters of current, curvature of the electrowetting liquid lens array, and power consumption to optimize the luminous flux and power consumption of the output beam.

[0086] When the objective function value F=1.042, the system has reached a certain balance between luminous flux and power consumption, and can be further optimized.

[0087] 3.1 Current Data

[0088] Current luminous flux =850lm.

[0089] Target luminous flux =1000lm.

[0090] Current power consumption P=15W.

[0091] Reference power consumption =20W.

[0092] Weighting coefficients =0.6, =0.4.

[0093] The objective function value is F = 1.042.

[0094] 3.2 Luminous flux adjustment

[0095] Assuming an ideal target of 1.0, the objective function value F = 1.042 is less than the ideal value, indicating that the luminous flux is slightly low and the power consumption is high. The system needs to increase the luminous flux and balance this by optimizing power consumption.

[0096] The controller increases luminous flux by adjusting the current output or regulating the curvature of the electrowetting liquid lens array. Assuming that increasing the current from the current 600mA to 650mA increases the luminous flux of the LED array from 850lm to 900lm, the updated luminous flux data is as follows: =900lm.

[0097] 3.3 Power Consumption Adjustment

[0098] Increasing luminous flux leads to increased power consumption, necessitating power consumption adjustments to ensure the optimized power consumption does not exceed the reference value. Assume an increase in current causes power consumption to rise from 15W to 16W. The new power consumption data is as follows: =16W.

[0099] 3.4 Recalculate the objective function

[0100] With both luminous flux and power consumption adjusted, the controller will recalculate the objective function value. Substituting the data into the new objective function calculation formula, we get:

[0101]

[0102] objective function value =1.04, close to the expected target, close to the optimized equilibrium state.

[0103] 4. Feedback and Adjustment

[0104] The controller continuously adjusts parameters based on real-time feedback signals to ensure the light beam gradually approaches an optimized state. If the feedback signal detects that the luminous flux is close to the target value, the system can reduce power consumption or further optimize the beam shape to achieve the optimal balance.

[0105] Example 3

[0106] This embodiment achieves selective absorption and shielding of high-angle scattered light through a composite structure of a nanopore array blackening film and a honeycomb blackened grating.

[0107] 1. Selective absorption of nanoporous array blanking membranes

[0108] Nanopore array blanking films are primarily used to absorb high-angle scattered light components from light beams. The films have pore sizes ranging from 50 nm to 200 nm and thicknesses from 100 nm to 500 nm, enabling selective absorption of specific wavelengths and angles. The nanopore design effectively absorbs scattered light at angles greater than 60°, thereby reducing the impact of scattered components on lighting effects.

[0109] Assume that the current light beam contains high-angle scattered light with a scattering angle of 75°, corresponding to a wavelength of 450 nm. Through the selective absorption of a nanopore array, the high-angle scattered light component in the beam is effectively absorbed. For example, a nanopore array with a thickness of 100 nm and a pore size of 150 nm can absorb approximately 85% of the high-angle scattered light, reducing its negative impact on light efficiency.

[0110] Specific data:

[0111] Aperture range: 50nm-200nm.

[0112] Film thickness range: 100nm-500nm.

[0113] Absorption rate: 85%.

[0114] 2. High-angle shading of honeycomb-shaped blackened grid

[0115] The honeycomb-shaped blackened slats are designed to shield residual stray light, further reducing glare and improving effective light efficiency. The cell aperture of the honeycomb slats ranges from 1mm to 3mm, and the thickness ranges from 10mm to 20mm, effectively shielding high-angle scattered light while allowing paraxial light to pass through, maintaining the focus of the beam.

[0116] Assuming that some scattered light, consisting of high-angle components, remains in the beam after absorption by the nanopore array, a honeycomb-shaped blackened grating can effectively shield this high-angle light. For example, a honeycomb grating with a pore size of 2 mm and a thickness of 15 mm can effectively shield light components with a scattering angle greater than 70°, thereby reducing the impact of residual spillover light on luminous efficiency.

[0117] Specific data:

[0118] Aperture range: 1mm-3mm.

[0119] The thickness of the grille ranges from 10mm to 20mm.

[0120] Shielding angle: greater than 70°.

[0121] 3. The overall function of the blanking component

[0122] The combination of a nanopore array blanking film and a honeycomb blackened grating effectively absorbs and shields high-angle scattered components in the beam, significantly improving the quality of the output beam. The optimized beam reduces glare and enhances luminous efficacy, ensuring uniform illumination and high brightness in the lit area.

[0123] For example:

[0124] Preliminary calculations show that in a beam without blanking components, 10% of the light is scattered at high angles, resulting in a loss of luminous efficiency. After treatment with a nanopore array and a honeycomb blackened grating, the absorption and shielding of the scattered light components increase the effective luminous flux of the beam by approximately 8%, reduce glare, and improve luminous efficiency.

[0125] 4. Optimization Results

[0126] Through optimization, the effective luminous efficacy of the terminal beam has been improved, glare has been reduced, and the lighting effect is more uniform. Through the blanking component structure, the system can effectively absorb 85% of high-angle scattered light, reduce ineffective light, block light components above 70°, reduce glare, improve focusing effect, enhance luminous efficacy, ensure increased effective luminous flux of the beam, and improve energy efficiency.

[0127] Example 4

[0128] This embodiment transmits operating parameters back via a wireless communication interface with an appended timestamp, enabling the controller to monitor and dynamically adjust the lighting system in real time, thereby optimizing energy saving and lighting effects.

[0129] 1. The terminal beam is projected onto the target illumination area.

[0130] The output port projects an optimized terminal beam onto the target lighting area via optical components. Assuming an indoor lighting application, the output port projects the terminal beam onto a 10m² lighting area, requiring uniform illumination without significant glare. The beam, processed by the blanking component, achieves high luminous efficacy and has no high-angle scattering components, ensuring stable projection onto the lighting area and uniform luminous flux distribution.

[0131] 2. Acquisition and transmission of operating parameters

[0132] While the beam is being projected, the output port also needs to monitor the current system operating parameters in real time, including:

[0133] Current parameters: For example, the current driving current of the current LED array is 650mA.

[0134] Luminous flux parameter: For example, the current output luminous flux is 900lm.

[0135] Power consumption parameters: For example, the current power consumption is 16W.

[0136] Operating parameters will be transmitted back to the controller via a wireless communication interface. Data transmission will be conducted through a Wi-Fi or Bluetooth wireless communication module, with each data packet accompanied by a timestamp to ensure that the operating data is synchronized with time, facilitating subsequent analysis and adjustments.

[0137] The data packet indicates that the current is 650mA, the luminous flux is 900lm, the power consumption is 16W, and the timestamp is 10:30:45 on September 18, 2025.

[0138] 3. Controller reception and subsequent processing

[0139] After receiving the operating parameters from the output port, the controller evaluates and processes them based on real-time data. For example, assuming the target luminous flux is 1000 lm, but the current luminous flux is only 900 lm, the controller will issue an adjustment signal based on the returned data to optimize the luminous flux, reduce power consumption, and further improve system efficiency.

[0140] The controller uses the returned timestamps to update the lighting scene template. It is assumed that the controller updates the scene template periodically to adapt to lighting needs at different times. Based on the returned operational data, the controller can adjust the scene template in a timely manner to achieve intelligent regulation, ensuring energy-saving and efficient lighting.

[0141] 4. Subsequent energy-saving operation

[0142] The controller adjusts the current luminous flux and power consumption based on the returned parameters, and also optimizes energy-saving strategies based on historical operating data. For example, if the luminous flux is too high during certain periods of a month, the controller will adjust the scene template for the current period to reduce the luminous flux and further save energy.

[0143] Specific data example:

[0144] Current current: 650mA.

[0145] Current luminous flux: 900 lm.

[0146] Current power consumption: 16W.

[0147] Timestamp: 2025-09-18T10:30:45Z.

[0148] The controller may adjust the current to 600mA, reduce power consumption to 15W, and update the parameters during the next data transmission.

[0149] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy-saving LED module optical system with an adjustable lens, characterized in that, include: An LED array, which outputs a stable primary beam, is powered by a constant current driver. An adjustable lens group is provided to zoom and shape the primary beam and output an intermediate beam. The adjustable lens group is composed of an electrowetting liquid lens array and a collimating microstructure element. The zoom is continuously adjusted by the electrowetting liquid lens array and the shaping is collimated by the collimating microstructure element. An illuminance sensor detects the illumination parameters of the illumination area of ​​the intermediate beam and generates a feedback signal; The data acquisition and recording unit acquires and stores the operating status of the constant current driver, the electrowetting liquid lens array, and the illuminance sensor, and generates operating parameters. The memory stores a preset target light distribution curve; The controller constructs a dual-objective optimization model of optical flux and power consumption based on the target light distribution curve and the feedback signal. The dual-objective optimization model of optical flux and power consumption converges the intermediate beam into an optimized beam. The blanking component absorbs and shields the high-angle scattering components in the optimized beam and outputs a terminal beam. The blanking component is a composite integrated structure, which includes a nanopore array blanking film and a honeycomb blackened grid. The absorption is selectively performed by the nanopore array, and the shielding is achieved by the honeycomb blackened grid to block residual spill light. The output port projects the terminal beam onto the target illumination area and transmits the operating parameters back to the controller.

2. The energy-saving LED module optical system with an adjustable lens according to claim 1, characterized in that: The constant current driver includes a temperature compensation module. When the ambient temperature rises, the temperature compensation module reduces the drive current, and when the ambient temperature drops, the temperature compensation module increases the drive current.

3. The energy-saving LED module optical system with an adjustable lens according to claim 1, characterized in that: The electrowetting liquid lens array adjusts the primary beam by changing the curvature of the liquid interface, and the collimating microstructure element collimates and shapes the zoomed beam to output the intermediate beam.

4. The energy-saving LED module optical system with an adjustable lens according to claim 3, characterized in that: The curvature adjustment range of the liquid interface of the electrowetting liquid lens array is 0.

01. -0.10 The collimating microstructure element is composed of multiple refractive units, and the angle difference between the light-emitting surface of the multiple refractive units and the optical axis is <2°.

5. The energy-saving LED module optical system with an adjustable lens according to claim 1, characterized in that: The illuminance sensor has a detection range of 1 lux to 50,000 lux and a detection accuracy of ≥ ±2%.

6. The energy-saving LED module optical system with an adjustable lens according to claim 1, characterized in that: The operating parameters include current parameters, curvature parameters, and illuminance parameters.

7. The energy-saving LED module optical system with an adjustable lens according to claim 1, characterized in that: The dual-objective optimization model for optical throughput and power consumption is constructed using a weighted normalization function, the objective function of which is: ， in, To optimize the objective function, This represents the system's real-time luminous flux. Let P be the target luminous flux and P be the real-time power consumption of the system. For reference power consumption, This is the optical flux weighting coefficient. This is the power consumption weighting coefficient.

8. The energy-saving LED module optical system with an adjustable lens according to claim 1, characterized in that: The pore size of the nanopore array blanking film ranges from 50nm to 200nm, and the film thickness ranges from 100nm to 500nm. The unit pore size of the honeycomb blackened grating is 1mm to 3mm, and the thickness is 10mm to 20mm.

9. The energy-saving LED module optical system with an adjustable lens according to claim 1, characterized in that: The data transmission uses a wireless communication interface, and the operating parameters are timestamped.

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