Projection lens adjustment method and device, electronic equipment and readable storage medium

Abstract

The application discloses a projection lens adjusting method and device, electronic equipment and a readable storage medium, which are applied to the technical field of projection and the projection lens adjusting method comprises the following steps: acquiring the real-time temperature of a projection lens and lens parameters; according to the real-time temperature and the lens parameters, a preset configuration file is inquired to obtain the lens focal point position of the projection lens, wherein the preset configuration file comprises the corresponding relationship between the temperature and the lens focal point position of the projection lens under the lens parameters; and if the lens focal point position deviates from a preset focal point position, the lens position of the projection lens is adjusted according to the lens focal point position. The application solves the technical problem of poor display effect of a projection picture.

Description

Technical Field

[0001] This application relates to the field of projection technology, and in particular to a projection lens adjustment method, device, electronic device, and readable storage medium. Background Technology

[0002] With the rapid development of technology, projection technology has become increasingly mature. Currently, in order to save costs, most projection lenses use one or more plastic lenses instead of glass lenses. However, when a projector uses this projection lens to play a video, light energy is converted into heat energy, causing the projection lens temperature to rise. Due to the high thermal expansion coefficient of the plastic lens in the projection lens, the resolution of the image is prone to decrease, that is, the thermal defocusing phenomenon of the projection lens, which in turn leads to poor display effect of the projected image. Summary of the Invention

[0003] The main objective of this application is to provide a projection lens adjustment method, device, electronic device, and readable storage medium, aiming to solve the technical problem of poor display effect of projected images in the prior art.

[0004] To achieve the above objectives, this application provides a projection lens adjustment method, applied to a projection lens adjustment device, the projection lens adjustment method comprising:

[0005] Obtain the real-time temperature and lens parameters of the projection lens;

[0006] Based on the real-time temperature and the lens parameters, a preset configuration file is queried to obtain the lens focus position of the projection lens, wherein the preset configuration file includes the correspondence between the temperature of the projection lens and the lens focus position under the lens parameters;

[0007] If the lens focus position deviates from the preset focus position, the lens position of the projection lens is adjusted according to the lens focus position.

[0008] Optionally, the projection lens includes at least one projection lens, and the lens parameters include at least one of the following: lens material, radius of curvature, optical surface type, lens thickness, half-aperture, and lens distance between adjacent projection lenses.

[0009] Optionally, the real-time temperature of the projection lens can be obtained, including:

[0010] Determine the light source of the projection lens, and obtain the distance between each projection lens and the light source; collect the real-time temperature of the target projection lens whose distance is less than a preset distance threshold; or,

[0011] The real-time temperature of each of the projection lenses constituting the projection lens is obtained.

[0012] Optionally, before the step of querying a preset configuration file based on the real-time temperature to obtain the lens focus position of the projection lens, wherein the preset configuration file includes the correspondence between the temperature of the projection lens and the lens focus position, the method further includes:

[0013] Obtain the focal position of the projection lens when the target projection lens is at different temperatures under the lens parameters;

[0014] Based on the correspondence between the temperature and the focal position of the lens when the target projection lens is at different temperatures under the lens parameters, the preset configuration file is generated.

[0015] Optionally, the projection lens adjustment method further includes:

[0016] Based on the real-time temperature and the lens parameters, construct the projection lens features corresponding to the projection lens;

[0017] Based on the characteristics of the projection lens and the preset lens focus model, the lens focus position of the projection lens is predicted.

[0018] Optionally, the projection lens includes at least one projection lens, and the lens parameters include at least one of the following: lens material, radius of curvature, optical surface type, lens thickness, half-aperture, and lens distance between adjacent projection lenses. The step of constructing the projection lens features corresponding to the projection lens based on the real-time temperature and the lens parameters includes:

[0019] Based on the lens material, radius of curvature, optical surface type, lens thickness, half-aperture, and lens distance between adjacent projection lenses, a lens feature matrix of the projection lens is constructed.

[0020] The projection lens features are obtained by stitching together the lens feature matrix and the real-time temperature.

[0021] Optionally, the step of adjusting the lens position of the projection lens based on the lens focal point position includes:

[0022] Determine the magnitude and direction of the positional deviation between the lens focus position and the preset focus position;

[0023] The position of the projection lens is adjusted according to the magnitude and direction of the position deviation.

[0024] To achieve the above objectives, this application also provides a projection lens adjustment device, which is applied to a projection lens adjustment equipment and includes:

[0025] The acquisition module is used to acquire the real-time temperature and lens parameters of the projection lens;

[0026] The query module is used to query a preset configuration file based on the real-time temperature and the lens parameters to obtain the lens focus position of the projection lens, wherein the preset configuration file includes the correspondence between the temperature of the projection lens and the lens focus position under the lens parameters;

[0027] An adjustment module is used to adjust the lens position of the projection lens according to the lens focus position if the lens focus position deviates from the preset focus position.

[0028] Optionally, the projection lens includes at least one projection lens, and the lens parameters include at least one of the following: lens material, radius of curvature, optical surface type, lens thickness, half-aperture, and lens distance between adjacent projection lenses.

[0029] Optionally, the acquisition module is further configured to:

[0030] Determine the light source of the projection lens, and obtain the distance between each projection lens and the light source; collect the real-time temperature of the target projection lens whose distance is less than a preset distance threshold; or,

[0031] The real-time temperature of each of the projection lenses constituting the projection lens is obtained.

[0032] Optionally, before the step of querying a preset configuration file based on the real-time temperature to obtain the lens focus position of the projection lens, wherein the preset configuration file includes the correspondence between the temperature of the projection lens and the lens focus position, the projection lens adjustment device is further configured to:

[0033] Obtain the focal position of the projection lens when the target projection lens is at different temperatures under the lens parameters;

[0034] Based on the correspondence between the temperature and the focal position of the lens when the target projection lens is at different temperatures under the lens parameters, the preset configuration file is generated.

[0035] Optionally, the projection lens adjustment device is further used for:

[0036] Based on the real-time temperature and the lens parameters, construct the projection lens features corresponding to the projection lens;

[0037] Based on the characteristics of the projection lens and the preset lens focus model, the lens focus position of the projection lens is predicted.

[0038] Optionally, the projection lens includes at least one projection lens, and the lens parameters include at least one of the following: lens material, radius of curvature, optical surface type, lens thickness, half-aperture, and lens distance between adjacent projection lenses. The projection lens adjustment device is further used for:

[0039] Based on the lens material, radius of curvature, optical surface type, lens thickness, half-aperture, and lens distance between adjacent projection lenses, a lens feature matrix of the projection lens is constructed.

[0040] The projection lens features are obtained by stitching together the lens feature matrix and the real-time temperature.

[0041] Optionally, the adjustment module is further configured to:

[0042] Determine the magnitude and direction of the positional deviation between the lens focus position and the preset focus position;

[0043] The position of the projection lens is adjusted according to the magnitude and direction of the position deviation.

[0044] This application also provides an electronic device, the electronic device comprising: a memory, a processor, and a program for the projection lens adjustment method stored in the memory and executable on the processor, wherein when the program for the projection lens adjustment method is executed by the processor, the steps of the projection lens adjustment method as described above can be implemented.

[0045] This application also provides a computer-readable storage medium storing a program for implementing a projection lens adjustment method, wherein when the program for the projection lens adjustment method is executed by a processor, it implements the steps of the projection lens adjustment method as described above.

[0046] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the projection lens adjustment method described above.

[0047] This application provides a projection lens adjustment method, apparatus, electronic device, and readable storage medium. Due to cost savings, most projection lenses use one or more plastic lenses instead of glass lenses. This application obtains the real-time temperature and lens parameters of the projection lens; based on the real-time temperature and lens parameters, it queries a preset configuration file to obtain the lens focus position of the projection lens. The preset configuration file includes the correspondence between the projection lens temperature and the lens focus position under the lens parameters. If the lens focus position deviates from the preset focus position, the lens position of the projection lens is adjusted according to the lens focus position. Adjusting the lens position based on the real-time temperature of the projection lens automatically solves the thermal defocusing phenomenon of the projection lens. This avoids the technical defect that when a projector uses this projection lens, light energy is converted into heat energy, causing the projection lens temperature to rise. Due to the high thermal expansion coefficient of the plastic lenses in the projection lens, this can easily lead to a decrease in image resolution, thereby improving the display effect of the projected image. Attached Figure Description

[0048] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0049] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0050] Figure 1 This is a flowchart illustrating the first embodiment of the projection lens adjustment method of this application;

[0051] Figure 2 This is a scene example diagram of the projection lens adjustment method of this application;

[0052] Figure 3 This is another example diagram illustrating the projection lens adjustment method of this application.

[0053] Figure 4 This is a schematic diagram of the device structure involved in the projection lens adjustment method in the embodiments of this application;

[0054] Figure 5 This is a schematic diagram of the device structure of the hardware operating environment involved in the projection lens adjustment method in the embodiments of this application.

[0055] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0056] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0057] Example 1

[0058] This application provides a projection lens adjustment method. In the first embodiment of the projection lens adjustment method of this application, refer to... Figure 1 The projection lens adjustment method includes:

[0059] Step S10: Obtain the real-time temperature and lens parameters of the projection lens;

[0060] Step S20: Based on the real-time temperature and the lens parameters, query the preset configuration file to obtain the lens focus position of the projection lens, wherein the preset configuration file includes the correspondence between the temperature of the projection lens and the lens focus position under the lens parameters;

[0061] Step S30: If the lens focus position deviates from the preset focus position, the lens position of the projection lens is adjusted according to the lens focus position.

[0062] In this embodiment, it should be noted that the preset focus position is a standard position of the lens focus that has been set in advance.

[0063] Understandably, to address the technical flaw in existing projectors where focusing issues easily occur upon startup, leading to low resolution of the projected image, image recognition is performed on the image group resolved by the projection lens. Based on the recognition results, it's determined whether the projection lens exhibits thermal defocusing. If thermal defocusing is present, the projection lens is moved according to the image group to improve the resolution of the projected image. However, due to the limitations of image recognition, the above method only applies to situations where the resolution of the projected image is significantly reduced. It is insufficient for situations where projectors using lenses containing plastic elements convert light energy into heat, causing the lens temperature to rise. The high thermal expansion coefficient of the plastic elements in the projection lens easily leads to a decrease in image resolution.

[0064] As an example, steps S10 to S30 include: acquiring the real-time temperature of the projection lens using a temperature sensor placed at a preset focal position of the projection lens, wherein the preset focal position can be above or below the projection lens, and the number of temperature sensors can be one or more; obtaining the lens parameters of the projection lens; querying a preset configuration file in the projection lens adjustment system or cloud server based on the real-time temperature and the lens parameters to obtain the lens focal position of the projection lens; determining whether the lens focal position deviates from the preset focal position; if the lens focal position deviates from the preset focal position, adjusting the lens position of the projection lens based on the lens focal position; if the lens focal position does not deviate from the preset focal position, keeping the lens position of the projection lens unchanged.

[0065] As an example, steps S10 to S30 include: acquiring the real-time temperature and lens parameters of the projection lens; determining the preset configuration file corresponding to the projection lens based on the lens parameters; querying the preset configuration file based on the real-time temperature to obtain the lens focus position of the projection lens; and adjusting the lens position of the projection lens based on the lens focus position.

[0066] As an example, steps S10 to S30 include: obtaining the real-time temperature and lens parameters of the projection lens; querying a preset mapping relationship based on the lens parameters and the real-time temperature to obtain the lens adjustment distance corresponding to the projection lens, wherein the preset mapping relationship includes the mapping relationship between the temperature of the projection lens and the lens adjustment distance; and adjusting the lens position of the projection lens based on the lens adjustment distance.

[0067] Optionally, before the step of determining whether the lens focus position deviates from the preset focus position, the method further includes:

[0068] Determine whether the lens focus position meets the preset focus position range; if the lens focus position meets the preset focus position range, then determine that the lens focus position has not deviated from the preset focus position; if the lens focus position does not meet the preset focus position range, then determine that the lens focus position deviates from the preset focus position, wherein the preset focus position range is a pre-set range of lens focus positions for determining the lens focus deviation, and the preset focus position range can be (-0.01mm, 0.01mm).

[0069] In step S10, the projection lens includes at least one projection lens, and the lens parameters include at least one of the following: lens material, radius of curvature, optical surface type, lens thickness, half-aperture, and lens distance between adjacent projection lenses.

[0070] In this embodiment, it should be noted that the optical surface type can be a standard surface or an even-order aspherical surface.

[0071] For example, obtaining the lens parameters of a projection lens includes: obtaining the refractive index, Abbe number, and lens material of each projection lens constituting the projection lens; integrating the refractive index, Abbe number, and lens material to obtain the lens material of each projection lens; measuring the radius of curvature of each projection lens using a corneal topometer; acquiring lens images carrying the characteristics of each projection lens and identifying the lens images to obtain the optical surface type corresponding to each projection lens; measuring the radial diameter of each projection lens using a measuring device to obtain the half-aperture of each projection lens; measuring the thickness of each projection lens using the measuring device; measuring the distance between adjacent projection lenses using the measuring device to obtain the lens distance between adjacent projection lenses; and integrating the lens material, radius of curvature, optical surface type, lens thickness, half-aperture, and lens distance into the lens parameters of the projection lens.

[0072] In step S10, obtaining the real-time temperature of the projection lens includes:

[0073] Step A10: Determine the light source of the projection lens, obtain the distance between each projection lens and the light source; collect the real-time temperature of the target projection lens whose distance is less than a preset distance threshold; or,

[0074] Step A20: Obtain the real-time temperature of each of the projection lenses constituting the projection lens.

[0075] In this embodiment, it should be noted that the preset distance threshold is a pre-set critical value used to select the distance between the projection lens closest to the light source and the light source.

[0076] For example, steps A10 to A20 include: obtaining the illumination path of the projection lens, determining the light source of the projection lens based on the illumination path, and obtaining the distance between each projection lens and the light source; selecting a target projection lens whose distance is less than a preset distance threshold among the projection lenses, and collecting the real-time temperature of the target projection lens through a movable temperature sensor or a fixed temperature sensor. By replacing the real-time temperature of each projection lens with the real-time temperature of the target projection lens that is closer to the light source, unnecessary energy cost consumption can be reduced, and the efficiency of determining the lens focus position can be improved; or, the real-time temperature of each projection lens can be collected through a fixed temperature sensor fixed to each projection lens constituting the projection lens, or the real-time temperature of each projection lens can be collected through a movable temperature sensor.

[0077] In step S20, before the step of querying a preset configuration file based on the real-time temperature to obtain the lens focus position of the projection lens, wherein the preset configuration file includes the correspondence between the temperature of the projection lens and the lens focus position, the method further includes:

[0078] Step B10: Obtain the focal position of the projection lens when the target projection lens is at different temperatures under the lens parameters.

[0079] Step B20: Based on the correspondence between the temperature and the focal position of the lens when the target projection lens is at different temperatures under the lens parameters, the preset configuration file is generated.

[0080] For example, steps B10 to B20 include: obtaining the field of view size of the target projection lens under the lens parameters when it is at different temperatures; calculating the lens focal position of the projection lens based on the lens position and each field of view size; generating the preset configuration file based on the correspondence between temperature and lens focal position when the target projection lens is at different temperatures under the lens parameters, and writing it into the projection lens adjustment system or into a cloud server.

[0081] As an example, refer to Figure 2 , Figure 2 It includes: a memory, a motor, and a temperature sensor. The relationship between temperature and lens focal point (as shown in the diagram) is pre-calibrated and stored in the memory. The temperature sensor collects the real-time temperature of the projection lens, and the relationship in the memory is retrieved based on the real-time temperature to obtain the corresponding lens focal point. The adjustment information for the projection lens corresponding to the focal point is then sent to the motor, whereby the adjustment information includes the adjustment amount and direction. The motor moves the lens according to the adjustment information.

[0082] As an example, refer to Figure 3 , Figure 3 It includes: a temperature sensor, a motor control circuit, a projection lens, an illumination optical path, and an imaging device. The temperature sensor sends the measured real-time temperature to the motor control circuit, which then adjusts the projection lens based on the real-time temperature.

[0083] This application provides a method for adjusting a projection lens. Due to cost savings, most projection lenses use one or more plastic lenses instead of glass lenses. This application obtains the real-time temperature and lens parameters of the projection lens; based on the real-time temperature and lens parameters, it queries a preset configuration file to obtain the lens focus position of the projection lens. The preset configuration file includes the correspondence between the projection lens temperature and the lens focus position under the lens parameters. If the lens focus position deviates from the preset focus position, the lens position of the projection lens is adjusted according to the lens focus position. Adjusting the lens position based on the real-time temperature of the projection lens automatically solves the thermal defocusing phenomenon of the projection lens. This avoids the technical defect that when a projector uses this projection lens, light energy is converted into heat energy, causing the projection lens temperature to rise. Due to the high thermal expansion coefficient of the plastic lenses in the projection lens, this can easily lead to a decrease in image resolution, thereby improving the display effect of the projected image.

[0084] Example 2

[0085] Furthermore, based on the first embodiment of this application, in another embodiment of this application, the content that is the same as or similar to that in Embodiment 1 above can be referred to the above description and will not be repeated hereafter. In addition, the projection lens adjustment method further includes:

[0086] Step C10: Based on the real-time temperature and the lens parameters, construct the projection lens features corresponding to the projection lens;

[0087] Step C20: Based on the characteristics of the projection lens and the preset lens focus model, predict the lens focus position of the projection lens.

[0088] In this embodiment, it should be noted that the preset lens focus model is a trained model used to predict the lens focus.

[0089] For example, steps C10 to C20 include: extracting lens parameter features corresponding to the lens parameters using a preset feature extractor; constructing projection lens features corresponding to the projection lens based on the real-time temperature and the lens parameter features corresponding to the lens parameters; and mapping the projection lens features to the lens focus position of the projection lens using a preset lens focus model.

[0090] In step C10, the projection lens includes at least one projection lens, and the lens parameters include at least one of the following: lens material, radius of curvature, optical surface type, lens thickness, half-aperture, and lens distance between adjacent projection lenses. The step of constructing the projection lens features corresponding to the projection lens based on the real-time temperature and the lens parameters includes:

[0091] Step C11: Construct the lens feature matrix of the projection lens based on the lens material, radius of curvature, optical surface type, lens thickness, half-aperture, and lens distance between adjacent projection lenses.

[0092] Step C12: The lens feature matrix and the real-time temperature are spliced ​​together to obtain the projection lens feature of the projection lens.

[0093] For example, steps C11 to C12 include: the preset feature extractor includes a lens material feature extractor and an optical surface feature extractor; the lens material feature extractor extracts features from the lens image to obtain the lens material features corresponding to each of the projection lenses; the optical surface feature extractor extracts features from the lens image to obtain the optical surface features corresponding to each of the projection lenses; the lens material features, the optical surface features, the radius of curvature, the lens thickness, the half-aperture, and the lens distance between each adjacent projection lens are stitched together to form the lens feature matrix of the projection lens; the lens feature matrix and the real-time temperature are stitched together to obtain the projection lens features of the projection lens.

[0094] Since the focal position of a projection lens is affected by various factors, this embodiment matches the projection lens with corresponding projection lens features based on the lens material, radius of curvature, optical surface type, lens thickness, half-aperture, lens distance between adjacent projection lenses, and the real-time temperature of the projection lens. This fully considers the influence of various factors on the focal position of the projection lens. The projection lens features are input values ​​used to predict the focal position, thus providing more decision-making basis for predicting the focal position of the projection lens and improving the prediction accuracy of the focal position. The adjustment of the projection lens position is affected by the prediction accuracy, thereby further improving the position adjustment accuracy of the projection lens and thus improving the display effect of the projected image.

[0095] In step S30, the step of adjusting the lens position of the projection lens according to the lens focal position includes:

[0096] Step S31: Determine the magnitude and direction of the positional deviation between the lens focus position and the preset focus position;

[0097] Step S32: Adjust the lens position of the projection lens according to the magnitude and direction of the position deviation.

[0098] For example, steps S31 to S32 include: determining the position difference between the lens focus position and the preset focus position; determining position deviation information between the lens focus position and the preset focus position based on the position difference; the position deviation information includes the position deviation magnitude and the position deviation direction; and adjusting the lens position of the projection lens based on the position deviation magnitude and the position deviation direction.

[0099] As an example, steps S31 to S32 include: taking the positional difference between the lens focal position and the preset focal position as the positional deviation between the lens focal position and the preset focal position; determining the positional deviation direction between the lens focal position and the preset focal position based on the sign of the positional difference; determining the adjustment direction of the projection lens based on the positional deviation direction; determining the adjustment amount of the projection lens based on the positional deviation magnitude; and adjusting the lens position of the projection lens based on the adjustment direction and the adjustment amount. For example, when the positional difference is +0.02mm, the projection lens is adjusted to the right by 0.02mm; when the positional deviation is -0.03mm, the projection lens is adjusted to the left by 0.03mm.

[0100] As an example, steps S31 to S32 include: determining the adjustment direction of the projection lens based on the positional deviation direction between the lens focus position and the preset focus position; determining the fine-tuning amount of the projection lens based on the magnitude of the positional deviation; adjusting the lens position of the projection lens based on the adjustment direction and the fine-tuning amount; and returning to the execution step: determining whether the lens focus position deviates from the preset focus position until the lens focus position does not deviate from the preset focus position. For example, when the positional difference is +0.04mm, the projection lens is adjusted to the right by 0.01mm. Then, the execution step is returned to the execution step: determining whether the lens focus position deviates from the preset focus position. When the positional difference changes to +0.03mm, the projection lens is adjusted to the right by 0.01mm. Finally, the execution step is returned to the execution step: determining whether the lens focus position deviates from the preset focus position until the lens focus position does not deviate from the preset focus position. By adjusting the lens position of the projection lens in small, multiple steps, the technical defect of low adjustment accuracy due to low adjustment precision when adjusting the lens position of the projection lens at once is avoided, thereby improving the adjustment accuracy of the lens position of the projection lens.

[0101] Optionally, before the step of predicting the lens focus position of the projection lens based on the projection lens characteristics and a preset lens focus model, the method further includes:

[0102] Obtain the lens focus model to be trained, training samples, and the corresponding real labels of the training samples. Based on the training samples and the real labels, iteratively optimize the lens focus model to be trained to obtain a preset lens focus model. The training samples are training projection lenses at various temperatures, and the real labels are the real lens focus positions of the training projection lenses at each of the stated temperatures.

[0103] This application provides a method for adjusting a projection lens. Due to cost savings, most projection lenses use one or more plastic lenses instead of glass lenses. This application obtains the real-time temperature and lens parameters of the projection lens; based on the real-time temperature and lens parameters, it queries a preset configuration file to obtain the lens focus position of the projection lens. The preset configuration file includes the correspondence between the projection lens temperature and the lens focus position under the lens parameters. If the lens focus position deviates from the preset focus position, the lens position of the projection lens is adjusted according to the lens focus position. Adjusting the lens position based on the real-time temperature of the projection lens automatically solves the thermal defocusing phenomenon of the projection lens. This avoids the technical defect that when a projector uses this projection lens, light energy is converted into heat energy, causing the projection lens temperature to rise. Due to the high thermal expansion coefficient of the plastic lenses in the projection lens, this can easily lead to a decrease in image resolution, thereby improving the display effect of the projected image.

[0104] Example 3

[0105] This application also provides a projection lens adjustment device, which is applied to a projection lens adjustment equipment, as shown in the following embodiment. Figure 4 The projection lens adjustment device includes:

[0106] The acquisition module is used to acquire the real-time temperature and lens parameters of the projection lens;

[0107] The query module is used to query a preset configuration file based on the real-time temperature and the lens parameters to obtain the lens focus position of the projection lens, wherein the preset configuration file includes the correspondence between the temperature of the projection lens and the lens focus position under the lens parameters;

[0108] An adjustment module is used to adjust the lens position of the projection lens according to the lens focus position if the lens focus position deviates from the preset focus position.

[0109] Optionally, the projection lens includes at least one projection lens, and the lens parameters include at least one of the following: lens material, radius of curvature, optical surface type, lens thickness, half-aperture, and lens distance between adjacent projection lenses.

[0110] Optionally, the acquisition module is further configured to:

[0111] Determine the light source of the projection lens, and obtain the distance between each projection lens and the light source; collect the real-time temperature of the target projection lens whose distance is less than a preset distance threshold; or,

[0112] The real-time temperature of each of the projection lenses constituting the projection lens is obtained.

[0113] Optionally, before the step of querying a preset configuration file based on the real-time temperature to obtain the lens focus position of the projection lens, wherein the preset configuration file includes the correspondence between the temperature of the projection lens and the lens focus position, the projection lens adjustment device is further configured to:

[0114] Obtain the focal position of the projection lens when the target projection lens is at different temperatures under the lens parameters;

[0115] Based on the correspondence between the temperature and the focal position of the lens when the target projection lens is at different temperatures under the lens parameters, the preset configuration file is generated.

[0116] Optionally, the projection lens adjustment device is further used for:

[0117] Based on the real-time temperature and the lens parameters, construct the projection lens features corresponding to the projection lens;

[0118] Based on the characteristics of the projection lens and the preset lens focus model, the lens focus position of the projection lens is predicted.

[0119] Optionally, the projection lens includes at least one projection lens, and the lens parameters include at least one of the following: lens material, radius of curvature, optical surface type, lens thickness, half-aperture, and lens distance between adjacent projection lenses. The projection lens adjustment device is further used for:

[0120] Based on the lens material, radius of curvature, optical surface type, lens thickness, half-aperture, and lens distance between adjacent projection lenses, a lens feature matrix of the projection lens is constructed.

[0121] The projection lens features are obtained by stitching together the lens feature matrix and the real-time temperature.

[0122] Optionally, the adjustment module is further configured to:

[0123] Determine the magnitude and direction of the positional deviation between the lens focus position and the preset focus position;

[0124] The position of the projection lens is adjusted according to the magnitude and direction of the position deviation.

[0125] The projection lens adjustment device provided in this application, employing the projection lens adjustment method in the above embodiments, solves the technical problem of poor display effect of the projected image. Compared with the prior art, the beneficial effects of the projection lens adjustment device provided in this application are the same as those of the projection lens adjustment method provided in the above embodiments, and other technical features in this projection lens adjustment device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0126] Example 4

[0127] This application provides an electronic device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, which are executed by the at least one processor to enable the at least one processor to perform the projection lens adjustment method in the above embodiments.

[0128] The following is for reference. Figure 5 The diagram illustrates a structural schematic of an electronic device suitable for implementing embodiments of the present disclosure. The electronic devices in the embodiments of the present disclosure may include, but are not limited to, mobile terminals such as mobile phones, laptops, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 5 The electronic device shown is merely an example and should not be construed as limiting the functionality and scope of the embodiments disclosed herein.

[0129] like Figure 5 As shown, an electronic device may include a processing unit (such as a central processing unit, graphics processing unit, etc.) that can perform various appropriate actions and processes based on a program stored in read-only memory (ROM) or a program loaded from a storage device into random access memory (RAM). The RAM also stores various programs and data required for the operation of the electronic device. The processing unit, ROM, and RAM are interconnected via a bus. Input / output (I / O) interfaces are also connected to the bus.

[0130] Typically, the following systems can be connected to the I / O interface: input devices including, for example, touchscreens, touchpads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output devices including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices including, for example, magnetic tapes, hard disks, etc.; and communication devices. Communication devices allow electronic devices to communicate wirelessly or wiredly with other devices to exchange data. Although electronic devices with various systems are shown in the figures, it should be understood that it is not required to implement or possess all the systems shown. More or fewer systems may be implemented alternatively.

[0131] In particular, according to embodiments of this disclosure, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this disclosure include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from a storage device, or installed from a ROM. When the computer program is executed by a processing device, it performs the functions defined above in the methods of embodiments of this disclosure.

[0132] The electronic device provided in this application, employing the projection lens adjustment method in the above embodiments, solves the technical problem of poor display effect of the projected image. Compared with the prior art, the beneficial effects of the electronic device provided in this application are the same as those of the projection lens adjustment method provided in the above embodiments, and other technical features of the electronic device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0133] It should be understood that various parts of this disclosure can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0134] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0135] Example 5

[0136] This embodiment provides a computer-readable storage medium having computer-readable program instructions stored thereon, which are used to execute the projection lens adjustment method in the above embodiment.

[0137] The computer-readable storage medium provided in this application embodiment may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (radio frequency), etc., or any suitable combination thereof.

[0138] The aforementioned computer-readable storage medium may be included in an electronic device or may exist independently without being assembled into an electronic device.

[0139] The aforementioned computer-readable storage medium carries one or more programs that, when executed by an electronic device, cause the electronic device to: acquire the real-time temperature and lens parameters of the projection lens; query a preset configuration file based on the real-time temperature and the lens parameters to obtain the lens focus position of the projection lens, wherein the preset configuration file includes the correspondence between the temperature of the projection lens and the lens focus position under the lens parameters; and adjust the lens position of the projection lens based on the lens focus position if the lens focus position deviates from the preset focus position.

[0140] Computer program code for performing the operations of this disclosure can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0141] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0142] The modules described in the embodiments of this disclosure can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0143] The computer-readable storage medium provided in this application stores computer-readable program instructions for executing the above-described projection lens adjustment method, thus solving the technical problem of poor display effect of the projected image. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application embodiment are the same as the beneficial effects of the projection lens adjustment method provided in the above-described embodiments, and will not be repeated here.

[0144] Example 6

[0145] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the projection lens adjustment method described above.

[0146] The computer program product provided in this application solves the technical problem of poor display effect of projected images. Compared with the prior art, the beneficial effects of the computer program product provided in the embodiments of this application are the same as the beneficial effects of the projection lens adjustment method provided in the above embodiments, and will not be repeated here.

[0147] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent scope of this application.

Claims

1. A method for adjusting a projection lens, characterized in that, The projection lens adjustment method includes: The real-time temperature and lens parameters of the projection lens are obtained. The projection lens includes at least one projection lens, and the lens parameters include at least one of the following: lens material, radius of curvature, optical surface type, lens thickness, half-aperture, and lens distance between adjacent projection lenses. The step of obtaining the real-time temperature of the projection lens includes: The light source of the projection lens is determined, and the distance between each projection lens and the light source is obtained; the real-time temperature of the target projection lens whose distance is less than a preset distance threshold is collected; Based on the real-time temperature and the lens parameters, a preset configuration file is queried to obtain the lens focus position of the projection lens, wherein the preset configuration file includes the correspondence between the temperature of the projection lens and the lens focus position under the lens parameters; Determine whether the lens focus position falls within the preset focus position range; if it does not fall within the preset focus position range, determine that the lens focus position deviates from the preset focus position. If the lens focus position deviates from the preset focus position, the lens position of the projection lens is adjusted according to the lens focus position.

2. The projection lens adjustment method as described in claim 1, characterized in that, Before the step of querying a preset configuration file based on the real-time temperature to obtain the lens focus position of the projection lens, wherein the preset configuration file includes the correspondence between the temperature of the projection lens and the lens focus position, the method further includes: Obtain the focal position of the projection lens when the target projection lens is at different temperatures under the lens parameters; Based on the correspondence between the temperature and the focal position of the lens when the target projection lens is at different temperatures under the lens parameters, the preset configuration file is generated.

3. The projection lens adjustment method as described in claim 1, characterized in that, The projection lens adjustment method also includes: Based on the real-time temperature and the lens parameters, construct the projection lens features corresponding to the projection lens; Based on the characteristics of the projection lens and the preset lens focus model, the lens focus position of the projection lens is predicted.

4. The projection lens adjustment method as described in claim 3, characterized in that, The step of constructing the projection lens features corresponding to the projection lens based on the real-time temperature and the lens parameters includes: Based on the lens material, radius of curvature, optical surface type, lens thickness, half-aperture, and lens distance between adjacent projection lenses, a lens feature matrix of the projection lens is constructed. The projection lens features are obtained by stitching together the lens feature matrix and the real-time temperature.

5. The projection lens adjustment method as described in claim 1, characterized in that, The step of adjusting the lens position of the projection lens based on the lens focus position includes: Determine the magnitude and direction of the positional deviation between the lens focus position and the preset focus position; The position of the projection lens is adjusted according to the magnitude and direction of the position deviation.

6. A projection lens adjustment device, characterized in that, The projection lens adjustment device includes: The acquisition module is used to acquire the real-time temperature and lens parameters of the projection lens. The projection lens includes at least one projection lens. The lens parameters include at least one of the following: lens material, radius of curvature, optical surface type, lens thickness, half-aperture, and lens distance between adjacent projection lenses. Specifically, the acquisition module is used to determine the light source of the projection lens, acquire the interval distance between each projection lens and the light source, and collect the real-time temperature of the target projection lens whose interval distance is less than a preset distance threshold. The query module is used to query a preset configuration file based on the real-time temperature and the lens parameters to obtain the lens focus position of the projection lens, wherein the preset configuration file includes the correspondence between the temperature of the projection lens and the lens focus position under the lens parameters; An adjustment module is used to adjust the lens position of the projection lens according to the lens focus position if the lens focus position deviates from the preset focus position. The projection lens adjustment device includes: Determine whether the lens focus position falls within the preset focus position range. If it does not fall within the preset focus position range, then determine that the lens focus position deviates from the preset focus position.

7. An electronic device, characterized in that, The electronic device includes: At least one processor; and, A memory communicatively connected to the at least one processor; wherein, The memory stores instructions executable by the at least one processor, which, when executed by the at least one processor, enables the at least one processor to perform the steps of the projection lens adjustment method according to any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a program for implementing a projection lens adjustment method, which is executed by a processor to implement the steps of the projection lens adjustment method as described in any one of claims 1 to 5.

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