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WO2023093166A1 - Système de réglage de lunettes, lunettes et procédé de réglage de lunettes - Google Patents

Système de réglage de lunettes, lunettes et procédé de réglage de lunettes Download PDF

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Publication number
WO2023093166A1
WO2023093166A1 PCT/CN2022/115043 CN2022115043W WO2023093166A1 WO 2023093166 A1 WO2023093166 A1 WO 2023093166A1 CN 2022115043 W CN2022115043 W CN 2022115043W WO 2023093166 A1 WO2023093166 A1 WO 2023093166A1
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WIPO (PCT)
Prior art keywords
shape memory
glasses
memory alloy
controller
adjustment
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Ceased
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PCT/CN2022/115043
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English (en)
Chinese (zh)
Inventor
梁波
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Goertek Inc
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Goertek Inc
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Publication date
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Publication of WO2023093166A1 publication Critical patent/WO2023093166A1/fr
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B27/0176—Head mounted characterised by mechanical features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B2027/0178—Eyeglass type

Definitions

  • the present application relates to the field of electronic control, in particular to a glasses adjustment system, glasses and a method for adjusting the glasses.
  • the interpupillary distance is the distance between the eyes, which is very important for the adjustment of the distance between the lenses of the glasses.
  • augmented reality Augmented Reality
  • VR Virtual Reality
  • the optical machine can follow the movement of the lens and adjust to provide the best experience for the target audience.
  • Using the wrong interpupillary distance setting in AR/VR can cause blurred vision and eye strain.
  • the main solution for adjusting the lenses of the glasses is to use a stepping motor.
  • the specific solution is that the stepping motor is connected to the lens. After the interpupillary distance of the target object is obtained, the stepping motor is used to drive the lens to move to match the interpupillary distance of the target object.
  • the purpose of this application is to provide an adjustment system for glasses, glasses and an adjustment method for glasses.
  • the adjustment system for glasses that can adjust lenses is lighter and thinner to improve portability, reduce noise during adjustment to improve the user experience of the target object, and improve the performance of the lenses. control accuracy, and reduce system power consumption.
  • the application provides a glasses adjustment system, including: shape memory alloy, drive circuit, controller, adjuster;
  • the adjuster is connected with the controller, and is used to acquire the adjustment parameters of the lens and send the adjustment parameters to the controller;
  • the controller is connected to the driving circuit, and is used to control the magnitude of the current of the driving circuit and/or the power-on time of the driving circuit according to the adjustment parameters;
  • the driving circuit is connected to the shape memory alloy, and is used to flow the generated current through the shape memory alloy;
  • the shape memory alloy is connected to the lens, and the adjustment direction of the lens is consistent with the stretching direction of the shape memory alloy.
  • the first ends of the two shape memory alloys are respectively connected to one of the lenses, and the second ends of the two shape memory alloys are respectively connected to one of the driving circuits.
  • the drive circuit includes: a first MOS transistor
  • the gate of the first MOS transistor is connected to the first GPIO pin of the controller, the source of the first MOS transistor is grounded, and the shape memory alloy is arranged between the drain of the first MOS transistor and the power supply. between;
  • the controller determines the duty cycle corresponding to the current and/or the conduction time according to the adjustment parameter, and controls the operation of the first MOS tube according to the duty cycle and/or the conduction time.
  • the alloy temperature detection circuit for detecting the temperature of the shape memory alloy
  • the alloy temperature detection circuit includes: a first thermistor, a first voltage dividing resistor, and a second MOS tube;
  • the gate of the second MOS transistor is connected to the second GPIO pin of the controller, the source of the second MOS transistor is grounded, and the first voltage dividing resistor and the first thermistor are connected in series to the Between the drain of the second MOS tube and the power supply, the first ADC pin of the controller is connected between the first voltage dividing resistor and the first thermistor;
  • the first ADC pin is used to detect the voltage at the middle position between the first voltage dividing resistor and the first thermistor;
  • the first thermistor is attached to the shape memory alloy
  • the controller is further configured to correct the corresponding relationship between the adjustment parameter and the magnitude of the current and/or the energization time according to the corresponding deformation of the shape memory alloy at different temperatures.
  • the ambient temperature detection circuit for detecting the ambient temperature inside the glasses;
  • the ambient temperature detection circuit includes: a second thermistor, a second voltage dividing resistor, and a third MOS tube;
  • the gate of the third MOS transistor is connected to the third GPIO pin of the controller, the source of the third MOS transistor is grounded, and the second voltage dividing resistor and the second thermistor are connected in series to the Between the drain of the third MOS tube and the power supply, the second ADC pin of the controller is connected between the second voltage dividing resistor and the second thermistor;
  • the second ADC pin is used to detect the voltage at the intermediate position between the second voltage dividing resistor and the second thermistor
  • the second thermistor is installed on the glasses, and the controller is further configured to correct the current magnitude and/or the power-on time according to the ambient temperature.
  • a storage module configured to store the adjustment parameters corresponding to different target objects
  • An identification module configured to identify different target objects to obtain identification results corresponding to the target objects
  • the recognition module is connected to the controller so as to send the recognition result to the controller;
  • the controller is also connected to the storage module, and is configured to acquire the adjustment parameter corresponding to the target object in the storage module according to the identification result.
  • the adjuster includes buttons arranged on the temples of the glasses.
  • the present application further provides glasses, including the above-mentioned glasses adjustment system.
  • the glasses are AR/VR glasses, and the optomechanics of the AR/VR glasses are fixedly connected to the lenses so as to move synchronously.
  • the present application also provides an adjustment method for glasses, which is applied to a glasses adjustment system including a shape memory alloy, a drive circuit, a controller, and an adjuster, wherein the adjuster is connected to the controller, and the The controller is connected with the drive circuit; the drive circuit is connected with the shape memory alloy, and is used to flow the generated current through the shape memory alloy; the shape memory alloy is connected with the lens, and the The adjustment direction of the lens is consistent with the stretching direction of the shape memory alloy; the method includes:
  • the magnitude of the current of the driving circuit and/or the power-on time of the driving circuit are controlled according to the adjustment parameters, so as to adjust the position of the mirror.
  • the glasses adjustment system includes a shape memory alloy, a controller, a regulator and a drive circuit.
  • the controller is respectively connected to the regulator and the drive circuit.
  • the controller controls the magnitude of the current of the driving circuit and/or the power-on time of the driving circuit according to the adjustment parameters.
  • the drive circuit is connected to the shape memory alloy and generates current to flow through the shape memory alloy.
  • the shape memory alloy is connected to the lens. When the shape memory alloy stretches, the connected lens will move along the stretching direction. Because the shape memory alloy has a high resistance, when the current passes through the shape memory alloy, heat will be generated to change its temperature. The shape memory alloy will have different shapes at different temperatures, and the lens will also be in different positions.
  • the glasses adjustment system of the present application can control the movement of the lenses by controlling the current in the driving circuit, so as to control the lenses of the glasses to adapt to different interpupillary distances.
  • the glasses adjustment system uses shape memory alloy to move the lens, which is smaller in size than the stepping motor, and the structural modules of the system are lighter and thinner, making it more convenient to use glasses;
  • the system uses In the process, the temperature change of the shape memory alloy is controlled by electric current, and the temperature change brings about a corresponding change in the grain structure of the shape memory alloy, thereby bringing about a change in shape.
  • the use of shape memory alloy can achieve Micron-level control accuracy, compared with the millimeter-level control accuracy of the stepping motor, the control accuracy of the glasses adjustment system is significantly improved;
  • the use of shape memory alloys only requires tens of milliamps of current, and the power consumption is lower than that of stepper motors. The intake motor is lower.
  • the spectacles provided by the present application include the above-mentioned spectacles adjustment system, and the effect is the same as above.
  • the present application also provides a method for adjusting spectacles, which corresponds to the above-mentioned spectacles adjusting system, and thus has the same beneficial effects as the above-mentioned spectacles adjusting system.
  • FIG. 1 is a structural diagram of a glasses adjustment system provided by an embodiment of the present application
  • Fig. 2 is a schematic diagram of the installation position of a glasses adjustment system provided by the embodiment of the present application;
  • Fig. 3 is a schematic diagram of the installation position of another glasses adjustment system provided by the embodiment of the present application.
  • FIG. 4 is a schematic diagram of a circuit structure of a glasses adjustment system provided by an embodiment of the present application.
  • FIG. 5 is a flow chart of a method for adjusting glasses provided by an embodiment of the present application.
  • the core of the present application is to provide a glasses adjustment system, glasses and a method for adjusting the glasses.
  • Interpupillary distance refers to the distance between the eyes.
  • the average interpupillary distance of human beings is 64mm, and the range of interpupillary distance is between 54mm and 72mm.
  • Figure 1 is a structural diagram of a glasses adjustment system provided by the embodiment of the present application; as shown in the figure, the glasses adjustment system includes: a shape memory alloy 13, a drive circuit 12, a controller 11, and an adjuster 10; wherein the adjuster 10 Connected with the controller 11 for obtaining the adjustment parameters of the lens and sending the adjustment parameters to the controller 11; the controller 11 is connected with the drive circuit 12 for controlling the current of the drive circuit 12 and/or the drive circuit 12 according to the adjustment parameters The power-on time; the drive circuit 12 is connected with the shape memory alloy 13 for passing the generated current through the shape memory alloy 13;
  • the lens of the glasses, the shape memory alloy 13, the driving circuit 12, the controller 11, the quantity and the type of the regulator 10 are not limited, and their installation positions and the connection methods between them are not required, so that the ideal can be achieved. effect.
  • the lenses of glasses are usually in pairs, but not limited to two, there can be multiple pairs of lenses and each pair of lenses can be connected by a shape memory alloy 13, or each lens can be connected by a shape memory alloy 13 Alloy 13.
  • the adjuster 10 is connected with the controller 11 to obtain the adjustment parameters of the lens and send the adjustment parameters to the controller 11, wherein the adjuster 10 can be a button, and the target object can press the button to adjust the position of the lens.
  • the target object can adjust the position of the lens according to his own usage habits, so as to improve the comfort when using the glasses;
  • the adjuster 10 can also be a remote control, and the target object can operate on the remote control, which can avoid pressing The uncomfortable feeling caused by squeezing the glasses when pressing the button;
  • the adjuster 10 can also be a voice controller 11, which acquires the adjustment parameters by receiving the voice command of the target object. After the controller 11 receives the adjustment parameter, it can obtain the adjustment intention of the target object to the lens from the adjustment parameter and perform related control.
  • the controller 11 is also connected to the drive circuit 12, and is used to control the size and current of the drive circuit 12 according to the adjustment parameter. /Or the energization time of drive circuit 12, can only control the size of drive circuit 12 electric current or only control the energization time of drive circuit 12, also can control the size of drive circuit 12 current and the energization time of drive circuit 12 to reach corresponding control Effect.
  • the magnitude of the current in the drive circuit 12 can be controlled by controlling the duty ratio of the current, for example, using a MOS tube to control the duty ratio of the current. Different duty ratios will generate different magnitudes of current; the magnitude of the current can also be controlled in other ways.
  • the drive circuit 12 is connected to the shape memory alloy 13, and is used to flow the generated current through the shape memory alloy 13.
  • the drive circuit 12 and the shape memory alloy 13 are connected according to the actual situation.
  • the drive circuit 12 can be connected to the end of the shape memory alloy 13 to give the whole
  • the shape memory alloy strip 13 is energized, and the middle position of the shape memory alloy 13 can also be connected to energize some positions, as long as the deformation can be generated to drive the lens to move.
  • Controlling the current size or energization time of the drive circuit 12 controls the current size and energization time flowing through the shape memory alloy 13;
  • the temperature of the shape-memory alloy 13 can be controlled according to the power-on time; the change in temperature brings about a corresponding change in the grain structure of the shape-memory alloy 13 , thereby bringing about a change in shape.
  • the shape memory alloy 13 is also connected to the lens, and the adjustment direction of the lens is consistent with the stretching direction of the shape memory alloy 13. For example, if a piece of shape memory alloy 13 is installed between two lenses, then when the shape memory alloy 13 is stretched , the two lenses will move to both sides, and the distance between the two lenses will increase accordingly. In addition, after adjusting the position of the lens, due to heat transfer, the temperature of the shape memory alloy 13 will gradually approach the ambient temperature, and the lens may continue to move, so it may be necessary to continue to supply power to the shape memory alloy 13 to maintain the shape memory alloy. 13 temperature, there is no specific requirement for the magnitude of the current and the power-on time.
  • FIG 2 is a schematic diagram of the installation position of a glasses adjustment system provided by the embodiment of the present application.
  • the installation positions of the various components given in the figure are only a solution in the embodiment of the application, and do not affect other solutions of the embodiment of the application. limit.
  • the glasses comprise two lenses, the controller 11 is installed in the middle of the two lenses, the drive circuit 12 is installed at the controller 11, and the drive circuit 12 is also connected to one end of the shape memory alloy 13 so that the shape memory alloy 13 is powered, and the other end of the shape memory alloy 13 is connected to the lens, so that the lens moves when the shape memory alloy 13 expands and contracts.
  • the glasses adjustment system provided in the embodiment of the present application includes a shape memory alloy, a controller, an adjuster, and a drive circuit.
  • the controller is respectively connected to the adjuster and the drive circuit.
  • the adjuster will obtain the adjustment parameters of the lens and send the adjustment parameters to the controller.
  • the controller controls the magnitude of the current of the driving circuit and/or the power-on time of the driving circuit according to the adjustment parameters.
  • the drive circuit is connected to the shape memory alloy and generates current to flow through the shape memory alloy.
  • the shape memory alloy is connected to the lens. When the shape memory alloy stretches, the connected lens will move along the stretching direction. Because the shape memory alloy has a high resistance, when the current passes through the shape memory alloy, heat will be generated to change its temperature.
  • the shape memory alloy will have different shapes at different temperatures, and the lens will also be in different positions.
  • the glasses adjustment system of the present application can control the movement of the lenses by controlling the current in the driving circuit, so as to control the lenses of the glasses to adapt to different interpupillary distances.
  • the glasses adjustment system uses shape memory alloy to move the lens, which is smaller in size than the stepping motor, and the structural modules of the system are lighter and thinner, making it more convenient to use glasses;
  • the system uses In the process, the temperature change of the shape memory alloy is controlled by electric current, and the temperature change brings about a corresponding change in the grain structure of the shape memory alloy, thereby bringing about a change in shape.
  • the use of shape memory alloy can achieve Micron-level control accuracy, compared with the millimeter-level control accuracy of the stepping motor, the control accuracy of the glasses adjustment system is significantly improved;
  • the use of shape memory alloys only requires tens of milliamps of current, and the power consumption is lower than that of stepper motors. The intake motor is lower.
  • control logic corresponding to different installation schemes of shape memory alloys is different.
  • Several installation schemes and corresponding control logics are listed below. The following are two lenses as an example, the control of multiple lenses and two lenses The logic is similar, and the following schemes all use shape memory alloys that will elongate when their temperature rises.
  • the shape memory alloy is installed between two lenses, which can be a shape memory alloy It can also be multiple, but each shape memory alloy is connected to two lenses at the same time, and controls the movement of the two lenses at the same time; when the target object wants to increase the distance between the two lenses, it needs to send a corresponding command to the regulator, and the regulator will After obtaining the adjustment parameters corresponding to increasing the distance between the two lenses, the controller controls the drive circuit to increase the current or increase the power-on time after receiving the relevant adjustment parameters, and the current flowing through the shape memory alloy changes accordingly, and the shape memory alloy will It stretches and drives the two lenses to move to both sides, and the distance between the two lenses increases.
  • the second situation is also that the shape memory alloy is installed between two lenses, but each shape memory alloy is connected to a lens separately, that is, the two shape memory alloys control the movement of the two lenses respectively; when the target object wants to increase the size of the two lenses
  • the controller controls the drive circuit to increase the current or increase the power-on time.
  • the current flowing through the two shape memory alloys also changes accordingly, and the two shape memory alloys will elongate, and drive the two lenses to move to the two sides respectively, and the distance between the two lenses will increase.
  • the third situation is that the shape memory alloy is installed on both sides of the glasses, and each shape memory alloy is connected to a lens separately, that is, the two shape memory alloys control the movement of the two lenses respectively; but when the target object wants to increase the distance between the two lenses
  • the shape memory alloy needs to be shortened, that is, the current of the driving circuit needs to be reduced or the power-on time of the driving circuit needs to be reduced.
  • each lens is connected with multiple shape memory alloys, and the shape memory alloy can be installed between two lenses or on both sides of the two lenses; multiple shape memory alloys control a lens, which can balance the force and make the lens When moving horizontally, the force is more uniform and the movement is more stable; in practical applications, if a shape memory alloy is connected to a lens, then a guide rail can be added to the shape memory alloy to achieve the effect of increasing the smoothness of lens movement . It should be noted that the above four solutions only list some situations of the glasses adjustment system of the present application, and do not limit the system. In addition, if the system uses a shape memory alloy that shortens when its temperature rises, the corresponding control logic should be the opposite of the above situation.
  • the first ends of the two shape-memory alloys are respectively connected to a lens.
  • the specific connection method is not limited.
  • a protrusion can be provided on both lenses, and the shape-memory alloy can be embedded in this protrusion; alloy welded together.
  • the second ends of the two shape memory alloys are respectively connected to a driving circuit, and the connection method is not limited.
  • Each piece of shape memory alloy can individually control a lens, and the movement of the corresponding lens can be controlled by controlling the expansion and contraction of the shape memory alloy.
  • the solution provided in this embodiment can separately control the shape memory alloys on the left and right sides to realize the adjustment of different distances between the two lenses, which can bring a better user experience to the target object than the unified adjustment of the two lenses.
  • the driving circuit includes: a first MOS transistor, the gate of the first MOS transistor is connected to the first GPIO pin of the controller, The source of the first MOS transistor is grounded, and the shape memory alloy is arranged between the drain of the first MOS transistor and the power supply; the controller determines the duty ratio and/or the conduction time corresponding to the current according to the adjustment parameters, and according to the duty ratio and /or the power-on time controls the operation of the first MOS tube, thereby controlling the magnitude and time of the current flowing through the shape memory alloy.
  • the number of drive circuits is not required here.
  • one drive circuit when there is only one shape memory alloy, one drive circuit can supply power to one shape memory alloy; in the second case, when there are multiple shape memory alloys, it can be One drive circuit supplies power to all shape memory alloys, that is, multiple shape memory alloys are arranged between the drain of a first MOS transistor and the power supply; the third case is that multiple drive circuits are connected to multiple shape memory alloys, each Each driving circuit supplies power to a shape memory alloy separately.
  • two driving circuits can be used, and the two driving circuits respectively supply power to the two shape memory alloys separately, so as to To achieve a better control effect is one of the third situations mentioned in this embodiment.
  • Fig. 3 is a schematic diagram of the installation position of another glasses adjustment system provided by the embodiment of the application.
  • the installation method shown in the figure is only one form in the embodiment of the application, and does not limit other forms in the embodiment of the application.
  • the figure includes two shape memory alloys 13, a controller 11, and a first thermistor 14.
  • the two first thermistors 14 are respectively attached to the shape memory alloy 13, and the controller 11 is located on the two shape memory alloys 13. middle.
  • the solution provided by this embodiment can directly control the duty cycle of the current through the first MOS tube, and then control the magnitude of the current; at the same time, it can also control the conduction time of the current.
  • This solution does not need to add additional components for controlling the magnitude of the current, which reduces the cost, and at the same time can better complete the above-mentioned control effect.
  • the system also includes: alloy temperature detection circuit, used to detect the temperature of shape memory alloy; alloy temperature detection circuit Including: the first thermistor, the first voltage dividing resistor, and the second MOS tube; the gate of the second MOS tube is connected to the second GPIO pin of the controller, the source of the second MOS tube is grounded, and the first voltage dividing resistor
  • the first thermistor is connected in series between the drain of the second MOS tube and the power supply, and the first ADC pin of the controller is connected between the first voltage dividing resistor and the first thermistor; wherein the first ADC pin is used for It is used to detect the voltage between the first voltage dividing resistor and the first thermistor; the first thermistor is attached to the shape memory alloy, and when the temperature of the shape memory alloy changes, the temperature of the first thermistor will also change with the
  • the first thermistor is a sensor resistor whose resistance value changes with temperature
  • the first ADC pin is used to measure the voltage between the first voltage dividing resistor and the first thermistor.
  • the voltage between the sensitive resistors can calculate the resistance value of the first thermistor at this time, and the temperature of the first thermistor at this time can be calculated according to the corresponding relationship between the temperature of the first thermistor and the resistance value, that is, the shape The temperature of memory alloy.
  • the controller can look up the temperature-deformation parameter table to correct the corresponding relationship between the adjustment parameter and the magnitude of the current and/or the power-on time, so as to perform more accurate control.
  • alloy temperature detection circuits there are no restrictions on the number of alloy temperature detection circuits and the types of thermistors. There can be one or more alloy temperature detection circuits. In the first case, there is only one shape memory alloy, and there is only one alloy temperature A detection circuit: using a first thermistor attached to the shape memory alloy to measure the temperature of the shape memory alloy. The second situation is that there are many shape memory alloys, and there is only one alloy temperature detection circuit; use a first thermistor to measure the temperature of one of the shape memory alloys, although the temperature-deformation parameter of each shape memory alloy cannot be obtained table, but the influence of environmental factors can be eliminated according to the temperature-deformation parameter table of the shape memory alloy.
  • the third case is that there are multiple shape memory alloys and multiple alloy temperature detection circuits; a first thermistor is attached to each shape memory alloy to measure the temperature and deformation of each shape memory alloy separately, In this way, the temperature-deformation parameter table of each shape memory alloy can be obtained, thereby realizing precise control.
  • the first thermistor may be a positive temperature coefficient thermistor or a negative temperature coefficient thermistor, which is not required here.
  • the embodiment of the present application provides a detection system for shape memory alloys, which can be controlled separately according to the characteristics of different shape memory alloys, so that the lenses can be adjusted more precisely.
  • the ambient temperature will affect the temperature of the shape memory alloy. If the ambient temperature is too low or too high, the current output according to the normal ambient temperature and the set power-on time cannot make the shape memory alloy reach the ideal temperature. For example, when the ambient temperature When it is lower, the temperature reached by the shape memory alloy through a certain time and a certain magnitude of current is lower than the normal ambient temperature, and it is necessary to increase the current or increase the energization time.
  • the glasses adjustment system also includes: an ambient temperature detection circuit for detecting the ambient temperature inside the glasses;
  • the ambient temperature detection circuit includes: a second thermistor, a second voltage dividing resistor, and a third MOS tube; the gate of the third MOS tube
  • the pole is connected to the third GPIO pin of the controller, the source of the third MOS transistor is grounded, the second voltage dividing resistor and the second thermistor are connected in series between the drain of the third MOS transistor and the power supply, and the second voltage dividing resistor
  • the second ADC pin of the controller is connected to the second thermistor; wherein the second ADC pin is used to detect the voltage in the middle of the second voltage dividing resistor and the second thermistor; the second thermistor is installed on On the glasses, the controller is also used to correct the magnitude of the current current and/or power-on time according to the ambient temperature.
  • the type and installation location of the second thermistor are not limited here.
  • the second thermistor may be a positive temperature coefficient thermistor or a negative temperature coefficient thermistor.
  • the second thermistor can be installed independently on any position of the glasses, but try not to stick it to the skin so as not to affect the measured ambient temperature by the temperature of the human body; the second thermistor can also be packaged with the controller and installed in the middle of the left and right lenses . There is no requirement on the number of ambient temperature detection circuits, and generally one ambient temperature detection circuit is used for measurement.
  • the second ADC pin is used to detect the voltage at the middle position between the second voltage dividing resistor and the second thermistor; the second thermistor is a sensor resistor whose resistance value changes with temperature.
  • the second ADC pin is used to measure the voltage between the second voltage dividing resistor and the second thermistor.
  • the voltage between the sensitive resistors can calculate the resistance value of the second thermistor at this time, and the temperature of the second thermistor at this time can be calculated according to the corresponding relationship between the temperature and resistance value of the second thermistor, that is, the environment temperature.
  • the controller corrects the magnitude of the current current and/or the power-on time according to the ambient temperature. If the ambient temperature is low, the current or the power-on time can be increased; if the ambient temperature is high, the current can be reduced or the power-on time can be reduced.
  • the ambient temperature detection circuit provided in this embodiment can assist the controller to control the temperature of the shape memory alloy, and the controller can correct the magnitude of the current current and/or power-on time according to the detected ambient temperature to improve control accuracy.
  • Fig. 4 is a schematic diagram of the circuit structure of a glasses adjustment system provided by the embodiment of the application; the circuit shown in the figure is only one of the methods provided by the application, and the application also includes other implementation methods.
  • the glasses adjustment system includes two shape memory alloys 13, and the figure also includes two drive circuits 12, two alloy temperature detection circuits, and one ambient temperature detection circuit, which can realize the functions in the above embodiments.
  • the controller 11 controls these circuits and measures the voltage at a specified position in the circuit through pins.
  • Both drive circuits 12 have a first MOS transistor Q1, which are the first MOS transistor Q1 on the left and the first MOS transistor on the right.
  • the controller 11 respectively controls the two first MOS transistors Q1 through the two first GPIO pins, the drains of the two first MOS transistors Q1 are respectively connected to one end of the two shape memory alloys 13, and the two shape memory alloys 13 The other end is connected to the power supply, and the two first MOS transistors Q1 respectively control the current to flow through the two shape memory alloys 13 .
  • Both alloy temperature detection circuits include a first voltage dividing resistor R1, a first thermistor 14, and a second MOS transistor Q2; the two first voltage dividing resistors R1 include the first voltage dividing resistor on the left R1 and the first voltage dividing resistor R1 on the right side, the two second MOS transistors include the second MOS transistor Q2 on the left side and the second MOS transistor Q2 on the right side, the drains of the two second MOS transistors Q2 are respectively connected to two One end of the first thermistor 14, the other ends of the two first thermistors 14 are respectively connected to the two first ADC pins of the controller 11 and one end of the two first voltage dividing resistors R1, the two first The other end of the voltage dividing resistor R1 is connected to a 3V power supply, and the first thermistor 14 is attached to the shape memory alloy 13 .
  • the ambient temperature detection circuit includes a third MOS transistor Q3, the drain of the third MOS transistor Q3 is connected to one end of the second thermistor 15, and the other end of the second thermistor 15 is connected to the second ADC pin of the controller 11 and One end of the second voltage dividing resistor R2 and the other end of the second voltage dividing resistor R2 are connected to a 3V power supply.
  • the glasses adjustment system also includes: a storage module for storing adjustment parameters corresponding to different target objects; an identification module for identifying different target objects to obtain the corresponding identification results of the target object; the identification module is connected with the controller for sending The recognition result is sent to the controller; the controller is also connected to the storage module, and is used to obtain the adjustment parameters corresponding to the target object in the storage module according to the recognition result.
  • the target object can choose to store the adjustment parameters corresponding to the position of the lens adjusted by himself in the storage module; the glasses are equipped with an identification module, which can identify the target object using the glasses at this time, and send the recognition result to the controller ; The controller obtains the adjustment parameters corresponding to the target object using the glasses in the storage module according to the recognition result, and controls the current of the driving circuit and/or the power-on time of the driving circuit according to the adjustment parameters.
  • the recognition module may be a fingerprint recognition module, a speech recognition module, or a recognition module that recognizes the target object by inputting a corresponding instruction from the target object.
  • the storage module in the glasses adjustment system provided in this embodiment can store adjustment parameters corresponding to different target objects, and also identify the target object using glasses through the identification module. This solution avoids cumbersome adjustment steps every time the target object uses the glasses, and improves the experience of using the glasses.
  • the regulator is a button and is set on the temple of the glasses.
  • the target object can press the button to adjust the position of the lens.
  • the button can be set to two. Press one of the buttons to increase the distance between the two lenses. Press Press another button to narrow the distance between the two lenses; the button can also be set to control each lens individually, multiple buttons can adjust a lens, allowing the target object to adjust the lens to the most ideal position.
  • the adjuster provided in this implementation can allow the target object to adjust the position of the lens according to his own habits, so as to improve the comfort when using glasses; when adjusting, only need to press the button on the mirror leg, the operation is more convenient, and the target is improved.
  • the user experience of the object can allow the target object to adjust the position of the lens according to his own habits, so as to improve the comfort when using glasses; when adjusting, only need to press the button on the mirror leg, the operation is more convenient, and the target is improved.
  • the user experience of the object can allow the target object to adjust the position of the lens according to his own habits, so as to improve the comfort when using glasses; when adjusting, only need to press the button on the mirror leg, the operation is more convenient, and the target is improved.
  • the spectacles provided by this embodiment correspond to the above-mentioned spectacles adjustment system, and thus have the same beneficial effect as the above-mentioned spectacles adjustment system.
  • the glasses in the above embodiments are AR/VR glasses, and there is an optical machine in the AR/VR glasses.
  • the position of the optical machine is not moved, the relative movement between the optical machine and the lens will occur, and then the The display effect of AR/VR glasses will be affected, and ghost images may also appear. Therefore, the optomechanics of the AR/VR glasses are fixedly connected to the lens for synchronous movement.
  • the optical machine can be installed at any position of the glasses, usually at the junction between the lens and the temple.
  • the solution provided by the embodiment of this application is to connect the optical machine to the lens.
  • the optical machine will also move synchronously with the lens; that is, there will be no relative movement between the optical machine and the lens when adjusting the position of the lens.
  • the light engine and the lens move in one direction uniformly, which avoids affecting the display effect of the AR/VR glasses and avoids the occurrence of ghost images.
  • this embodiment also provides an adjustment method for glasses, which is applied to a glasses adjustment system including a shape memory alloy, a drive circuit, a controller, and an adjuster, wherein the adjuster is connected to the controller, and the controller It is connected with the drive circuit; the drive circuit is connected with the shape memory alloy, which is used to flow the generated current through the shape memory alloy; the shape memory alloy is connected to the lens, and the adjustment direction of the lens is consistent with the stretching direction of the shape memory alloy;
  • Figure 5 is the application A flow chart of a method for adjusting glasses provided in the embodiment; as shown in the figure, the method includes the following steps:
  • S11 Control the magnitude of the current of the driving circuit and/or the power-on time of the driving circuit according to the adjustment parameters, so as to adjust the position of the lens.
  • the method for adjusting glasses provided in this embodiment corresponds to the above-mentioned glasses adjusting system, so it has the same beneficial effects as the above-mentioned glasses adjusting system.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)

Abstract

L'invention concerne un système de réglage de lunettes, des lunettes et un procédé de réglage de lunettes, appliqués au domaine de la commande électronique. Le système comprend un alliage à mémoire de forme (13), un dispositif de commande (11), un dispositif de réglage (10), et un circuit d'attaque (12) ; le dispositif de commande (11) est relié séparément au dispositif de réglage (10) et le circuit d'attaque (12) ; le dispositif de réglage (10) acquiert des paramètres de réglage d'une lentille et envoie les paramètres de réglage au dispositif de commande (11) ; et le dispositif de commande (11) commande l'amplitude d'un courant du circuit d'attaque (12) et/ou le temps de mise sous tension du circuit d'attaque (12) en fonction des paramètres de réglage. Le circuit d'attaque (12) génère un courant pour s'écouler à travers l'alliage à mémoire de forme (13), et lorsque l'alliage à mémoire de forme (13) est étiré/contracté, la lentille reliée à l'alliage à mémoire de forme (13) se déplace le long de la direction d'étirement/contraction. Comparé à une solution d'un moteur pas à pas, premièrement, l'alliage à mémoire de forme (13) est utilisé dans le système, et a une taille plus petite que le moteur pas à pas ; deuxièmement, dans le système, un changement de température de l'alliage à mémoire de forme (13) est commandé au moyen du courant, et aucun bruit n'est généré ; troisièmement, par comparaison avec le moteur pas à pas, l'utilisation de l'alliage à mémoire de forme (13) peut atteindre une précision de commande significativement améliorée ; et quatrièmement, la consommation d'énergie de l'utilisation de l'alliage à mémoire de forme (13) est inférieure à la consommation d'énergie de l'utilisation du moteur pas à pas.
PCT/CN2022/115043 2021-11-25 2022-08-26 Système de réglage de lunettes, lunettes et procédé de réglage de lunettes Ceased WO2023093166A1 (fr)

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