Light source adjusting device and method, storage medium, and program product

Abstract

The invention relates to a light source adjusting device and method, a storage medium and a program product. The device comprises a first grating (L1) used for converting a light source into polarized light; the second grating (L2) is arranged opposite to the first grating (L1) and is used for adjusting the polarized light to generate interference after passing through the second grating (L2) based on the slit width of the second grating (L2) and outputting the polarized light; wherein the slit width of the second grating (L2) is adjustable. According to the method, the light source of the device can be adjusted by adjusting the angle of the slit width of the grating, and the light source adjusting efficiency and the light source data precision can be improved; compared with an existing mode that a mechanical structure is applied to adjust the light distribution angle or position of the light initially irradiated by the light source, the device in the scheme is low in structural space requirement and low in maintenance cost, and stability is improved.

Description

Technical Field

[0001] This disclosure relates to the field of optical technology, and in particular to a light source adjustment device and method, storage medium, and program product. Background Technology

[0002] In some lighting scenarios, to adapt to the diverse needs of the light source during use, it is necessary to continuously adjust the overall lighting position of the light source to obtain a light source that meets the requirements of the scenario. Commonly, mechanical structures can be used to adjust the initial lighting angle or position of the light emitted by the light source, for example, by rotating a motor or moving the structure to adjust the lighting at different angles or positions. However, using mechanical lighting methods has some problems, such as slow response speed, low accuracy of lighting data, large space requirements preventing miniaturization, and susceptibility to aging and wear, leading to high maintenance costs. Summary of the Invention

[0003] To overcome the problems existing in related technologies, this disclosure provides a light source adjustment device and method, storage medium, and program product.

[0004] According to a first aspect of the present disclosure, a light source adjustment device is provided, the device comprising:

[0005] The first grating L1 is used to convert the light source into polarized light;

[0006] The second grating L2 is disposed opposite to the first grating L1 and is used to adjust the interference and output of the polarized light after passing through the second grating L2 based on the slit width of the second grating L2; wherein the slit width of the second grating L2 is adjustable.

[0007] In some embodiments, the apparatus further includes:

[0008] The first driving component L5 is connected to the first grating L1 and is used to adjust the slit width of the first grating L1 to change the polarization direction of the light source.

[0009] The second driving component L6 is connected to the second grating L2 and is used to adjust the slit width of the second grating L2.

[0010] In some embodiments, the apparatus further includes:

[0011] A control component, connected to the first driving component L5 and / or the second driving component L6 respectively, is used to control the first driving component L5 to adjust the polarization direction of the first grating L1, and / or to control the second driving component L6 to adjust the slit width of the second grating L2.

[0012] In some embodiments, the first driving component L5 and / or the second driving component L6 are liquid crystal driving circuits.

[0013] In some embodiments, the apparatus further includes:

[0014] The light-emitting component L3 is disposed opposite to the first grating L1 on the side away from the second grating L2, and is used to provide the light source.

[0015] According to a second aspect of the present disclosure, a light source adjustment method is provided, the method comprising:

[0016] An instruction is given to adjust the light source adjustment device; wherein the light source adjustment device includes the light source adjustment device described in any one of the first aspects of the embodiments of this disclosure;

[0017] Based on the instructions, the light source adjustment device is controlled to adjust the output of the light source.

[0018] In some embodiments, the method further includes:

[0019] The first distance between each irradiated device illuminated by the light output from the light source adjustment device, and the second distance between the second grating L2 and each irradiated device are obtained; wherein each irradiated device is arranged opposite to the second grating L2 on the side away from the first grating L1.

[0020] The instruction to adjust the light source adjustment device includes:

[0021] Based on the first distance, the second distance, and the preset wavelength of the light source, an instruction is determined to adjust the slit width of the second grating L2 in the light source adjustment device.

[0022] In some embodiments, the method further includes:

[0023] Obtain the light intensity value fed back by each irradiated device illuminated by the light source output by the light source adjustment device;

[0024] The instruction to adjust the light source adjustment device includes:

[0025] In response to the determination that the light intensity value fed back by each irradiated device does not meet the preset light intensity threshold, an instruction is given to adjust the light source adjustment device.

[0026] In some embodiments, the instruction to adjust the light source adjustment device in response to determining, based on the light intensity values ​​fed back by each irradiated device, that a preset light intensity threshold is not met, includes:

[0027] In response to the determination that the preset light intensity threshold is not met based on the light intensity values ​​fed back by each irradiated device, an instruction is determined to adjust the light source adjustment device based on the adjustment range of the slit width supported by the first grating L1 and / or the second grating L2.

[0028] In some embodiments, determining the instruction to adjust the light source adjustment device based on the adjustment range of the slit width supported by the first grating L1 and / or the second grating L2 includes:

[0029] In response to adjusting either the first grating L1 or the second grating L2, an instruction for the grating to be adjusted is determined based on the adjustment range of the slit width supported by the grating to be adjusted and the current slit width of the gratings other than the grating to be adjusted.

[0030] According to a third aspect of the present disclosure, a light source adjustment device is provided, the device comprising:

[0031] A determining module is configured to determine an instruction to adjust a light source adjusting device; wherein the light source adjusting device includes the light source adjusting device described in any one of the first aspects of the embodiments of this disclosure;

[0032] The control module is configured to control the light source adjustment device to adjust the output of the light source based on the instructions.

[0033] In some embodiments, the apparatus further includes:

[0034] The first acquisition module acquires a first distance between each irradiated device illuminated by the light output from the light source adjustment device, and a second distance between the second grating L2 and each irradiated device; wherein each irradiated device is positioned opposite the second grating L2 on the side away from the first grating L1.

[0035] The determining module is further configured to determine an instruction to adjust the slit width of the second grating L2 in the light source adjustment device based on each first distance, each second distance, and the preset wavelength of the light source.

[0036] In some embodiments, the apparatus further includes:

[0037] The second acquisition module is configured to acquire the light intensity value fed back by each irradiated device irradiated by the light source output by the light source adjustment device.

[0038] The determining module is further configured to determine an instruction to adjust the light source in response to determining, based on the light intensity values ​​fed back by each of the irradiated devices, that the preset light intensity threshold is not met.

[0039] In some embodiments, the determining module is further configured to, in response to determining that the preset light intensity threshold is not met based on the light intensity values ​​fed back by each of the irradiated devices, determine an instruction to adjust the light source based on the adjustment range of the slit width supported by the first grating L1 and / or the second grating L2.

[0040] In some embodiments, the determining module is further configured to, in response to adjusting either the first grating L1 or the second grating L2, determine an instruction for the grating to be adjusted based on the adjustment range of the slit width supported by the grating to be adjusted and the current slit width of the gratings other than the grating to be adjusted.

[0041] According to a fourth aspect of the present disclosure, a non-transitory computer-readable storage medium is provided, the storage medium storing a computer program or instructions that, when executed by a processor, implement the steps of the method described in any one of the second aspects of the present disclosure.

[0042] According to a fifth aspect of the present disclosure, a computer program product is provided, including a computer program or instructions, which, when executed by a processor, implement the steps of the method described in any one of the second aspects of the present disclosure.

[0043] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0044] The device in this embodiment of the present disclosure achieves flexible control over the polarization conversion and interference output of the light source by combining a first grating and a second grating. In particular, the adjustable slit width of the second grating allows for precise control of the interference phenomenon according to actual needs, thereby greatly improving the application range and practicality of the light source adjustment device. Furthermore, compared to using mechanical structures to adjust the initial beam angle or position of the light emitted from the light source, this embodiment of the present disclosure does not rely on mechanical structures, thus requiring less space for the structure, reducing aging and wear, and lowering maintenance costs.

[0045] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0046] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0047] Figure 1 This is an example of a light source adjustment device according to an exemplary embodiment. Figure 1 .

[0048] Figure 2 This is an example diagram illustrating an application scenario of a light source adjustment device according to an exemplary embodiment.

[0049] Figure 3 This is an example of a light source adjustment device according to an exemplary embodiment. Figure 2 .

[0050] Figure 4 This is a block diagram illustrating a hardware-driven control scheme for adjusting a light source, according to an exemplary embodiment.

[0051] Figure 5 This is a flowchart illustrating a light source adjustment method according to an exemplary embodiment.

[0052] Figure 6 This is a grating interference experiment diagram illustrating a light source adjustment device according to an exemplary embodiment.

[0053] Figure 7 This is an optical path diagram of a grating interference experiment of a light source adjustment device according to an exemplary embodiment.

[0054] Figure 8 This is a complete flowchart illustrating a light source adjustment method according to an exemplary embodiment.

[0055] Figure 9 This is a block diagram illustrating a light source adjustment device according to an exemplary embodiment. Detailed Implementation

[0056] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0057] In various optical applications such as optical instruments, display devices, and lighting equipment, specific light output properties can be obtained by adjusting the light source. Existing solutions that mechanically adjust the light source's angle or position have many problems and cannot meet the flexible control requirements of the light source in real-world scenarios.

[0058] In response, this disclosure provides a light source adjustment device. Figure 1 This is an example of a light source adjustment device according to an exemplary embodiment. Figure 1 ,like Figure 1 As shown, the light source adjustment device includes:

[0059] The first grating L1 is used to convert the light source into polarized light;

[0060] The second grating L2 is disposed opposite to the first grating L1 and is used to adjust the interference and output of the polarized light after passing through the second grating L2 based on the slit width of the second grating L2; wherein the slit width of the second grating L2 is adjustable.

[0061] As an optical element used to control the propagation of light beams, gratings play a very important role in the field of optics. They typically have a series of parallel and equidistant gratings or slits, and their main function is to spatially disperse light sources, that is, to disperse light sources of different wavelengths at different angles, or to transmit or reflect light sources of specific wavelengths. Gratings can also use the principle of multi-slit diffraction to disperse light sources (decompose them into a spectrum). The generation of the grating spectrum is the result of the combined effect of multi-slit interference and single-slit diffraction. When a light source passes through a multi-slit grating, each slit produces diffraction. Simultaneously, under the conditions of satisfying the slit width of the grating and the wavelength of the incident light source, interference also occurs between multiple slits, producing alternating bright and dark interference fringes.

[0062] Among them, the tunable grating is an optical element with adjustable properties. Its characteristics, such as the slit width and operating wavelength of the grating, can be adjusted or optimized by external control. Therefore, in practical applications, users can select appropriate grating materials and set appropriate grating structures according to the actual application requirements and usage scenarios.

[0063] In this embodiment, the first grating L1 is used to convert the light source into polarized light. In actual optical operations, only light with a specific polarization direction can be effectively utilized. The first grating L1 can be a polarizer or polarizing grating, allowing only light with a specific polarization direction to pass through, while light with other polarization directions is blocked or absorbed. This converts unpolarized or randomly polarized light in the light source into polarized light with a specific polarization direction, achieving polarization conversion. This design provides a stable and high-quality polarized light source for subsequent interference operations.

[0064] In this embodiment, a second grating L2 is disposed opposite to the first grating L1 and is used to adjust the interference and output of polarized light after passing through the second grating L2 based on the slit width of the second grating L2. The second grating L2 can be an electrically controlled adjustable grating, a thermally controlled adjustable grating, or similar types. An electrically controlled adjustable grating can be a liquid crystal adjustment grating, which utilizes the optical properties of its liquid crystal material. By adjusting the voltage or current applied to the grating by the liquid crystal driver, the arrangement of liquid crystal molecules can be changed, thereby adjusting the transmittance or reflectance of the grating and altering its optical properties. A thermally controlled adjustable grating typically includes a heating element and a temperature control system. The temperature control system monitors and controls the temperature of the heating element, generating heat by applying current or voltage to the heating element to ensure appropriate thermal expansion or contraction of the grating material, thereby changing the optical properties of the grating.

[0065] The second grating L2 and the first grating L1 in this embodiment are arranged in parallel, with the second grating L2 and the first grating L1 remaining parallel and their relative positions fixed; they are also arranged at an angle, with the second grating L2 and the first grating L1 maintaining a certain angle of inclination and their relative positions adjustable.

[0066] It should be noted that in this embodiment, the light source adjustment device may have its own light source or may not have a light source at all, i.e., an external light source may be used. In this embodiment, the output of the light source can be changed by adjusting the grating in the light source adjustment device to meet diverse lighting requirements. The projection position, angle, and intensity of the light output by the light source adjustment device can be changed relative to the initial light from the light source.

[0067] In this embodiment, the light source adjustment device can be applied to desk lamps, displays, or to assist in equipment testing. Taking a desk lamp as an example, at the time of manufacture, the light source output can be adjusted using the light source adjustment device within the lamp to obtain a uniformly distributed light source. Alternatively, based on user commands received during use, the light source output can be adjusted to meet diverse lighting needs of the user. Similarly, in a display screen, the light source output can be adjusted using the light source adjustment device within the screen to obtain a uniformly distributed light source, thereby improving the display effect. In assisting equipment testing, the light source output can be adjusted during equipment testing to meet diverse testing requirements regarding light projection position, angle, and intensity. For example, the light source output can be distributed to different positions using the light source adjustment device, thus simultaneously meeting the testing needs of multiple devices, which improves testing efficiency.

[0068] Figure 2 This is an example diagram illustrating an application scenario of a light source adjustment device according to an exemplary embodiment, such as... Figure 2 As shown, the light source adjustment device M1 includes a first grating L1 and a second grating L2. In this embodiment, the light source adjustment device M1 converts the light source into polarized light through the first grating L1, and adjusts the first grating L2 so that the polarized light obtained through the first grating L1 can interfere with the adjusted second grating L2, generating interleaved bright interference fringes M2. These bright interference fringes M2 are projected onto devices M3 located at positions T1, T2, and T3. The devices M3 can be mobile phones, tablets, or laptops, etc. Based on the light source adjustment device M1 in this embodiment, the performance of the photosensors in devices such as mobile phones, tablets, and laptops can be tested.

[0069] In this embodiment, since the bright fringes of the interference light output by the light source adjustment device M1 are distributed at different positions, and the bright and dark interference light alternates, it is possible to test multiple devices under test simultaneously, thus improving testing efficiency. Furthermore, since the slit width of the second grating L2 is adjustable, the occurrence of interference phenomena can be controlled by adjusting the slit width, affecting the spacing of the interference fringes and the illumination intensity. This allows for precise control of the output light to meet the testing requirements of multiple devices under test. This method also improves light energy utilization, enhances the overall performance of the light source adjustment device, and increases the light source adjustment efficiency.

[0070] It is understood that the device in this embodiment of the present disclosure, by combining the first grating L1 and the second grating L2, achieves flexible control over the polarization conversion and interference output of the light source. In particular, the adjustable slit width of the second grating L2 allows for precise control of the interference phenomenon according to actual needs, thereby greatly improving the application range and practicality of the light source adjustment device. Furthermore, compared to using mechanical structures to adjust the initial beam angle or position of the light emitted by the light source, this embodiment of the present disclosure, because it does not rely on mechanical structures, requires less space for the structure, reduces aging and wear, and lowers maintenance costs.

[0071] In some embodiments, the light source adjustment device further includes:

[0072] The first driving component L5 is connected to the first grating L1 and is used to adjust the slit width of the first grating L1 to change the polarization direction of the light source.

[0073] The second driving component L6 is connected to the second grating L2 and is used to adjust the slit width of the second grating L2.

[0074] Based on the grating types described above, in this embodiment, the first driving component L5 and the second driving component L6 can be a liquid crystal driving component or a thermal driving component. The liquid crystal driving component, based on a current or voltage signal received from the control system for adjusting the grating slit width, changes the arrangement of liquid crystal molecules by adjusting the voltage or current applied to the grating, thereby adjusting the grating slit width. The thermal driving component, based on a current or voltage signal received from the temperature control system for adjusting the grating slit width, changes the amount of heat generated by the heating element on the grating by adjusting the voltage or current applied to the heating element, causing the thermally controlled adjustable grating to undergo corresponding thermal expansion or contraction under different temperatures, thereby adjusting the grating slit width.

[0075] In this embodiment, the first driving component L5 is connected to the first grating L1 and is used to adjust the slit width of the first grating L1 to change the polarization direction of the light source. When light passes through the slit of the first grating L1, the electric field vector of the light wave may be rearranged due to diffraction. In this case, after the light passes through the slit, the vibration direction of its electric field vector may change, resulting in a change in polarization direction. This embodiment, by adjusting the slit width of the first grating L1 using the first driving component L5 to change the polarization direction of the light source, can transform the incident unpolarized light source into a polarized light source, thereby achieving precise control over the polarization state of the light source and improving the light energy utilization rate of the light source.

[0076] In this embodiment, the second driving component L6 is connected to the second grating L2 and is used to adjust the slit width of the second grating L2. Based on the adjusted slit width of the second grating L2, the output of the interference light is adjusted to meet the light source requirements of different application scenarios.

[0077] It is understood that the device in this embodiment of the present disclosure is connected to the first grating L1 and the second grating L2 through the first driving component L5 and the second driving component L6 respectively, so that the first driving component L5 and the second driving component L6 work together to achieve precise adjustment of the polarization direction of the light source and the slit width, thereby improving the accuracy and efficiency of the light source adjustment result.

[0078] In some embodiments, the light source adjustment device further includes:

[0079] The control component L7 is connected to the first drive component L5 and / or the second drive component L6 respectively, and is used to control the first drive component L5 to adjust the slit width of the first grating L1, and / or to control the second drive component L6 to adjust the slit width of the second grating L2.

[0080] In this embodiment of the disclosure, the control component L7 may be a control unit in the light source adjustment device, or a control module in a control device that integrates the light source adjustment device. The control component L7 may be a central processing unit (CPU) or a microcontroller unit (MCU), etc.

[0081] In this embodiment, the control component L7 is connected to the first driving component L5 and / or the second driving component L6, respectively. It sends a control signal to the first driving component L5 to drive a change in the slit width of the first grating L1. Similarly, the control component can also send a control signal to the second driving component L6 to adjust the slit width of the second grating L2. For example, after receiving an adjustment command from a user, the control component L7 parses it into information including the target slit width value. Then, the control component L7 determines the instruction to adjust the driving component (first driving component L5 or second driving component L6) according to a preset control algorithm, and drives the corresponding grating to achieve the target slit width. It should be noted that in this embodiment, the control component L7 can also determine the adjustment command based on information fed back from the device using the light source, to control the driving component to adjust the corresponding grating; wherein the device using the light source is as described in the aforementioned test device.

[0082] It is understood that the device in this embodiment of the present disclosure, through the control component L7, precisely controls the actions of the first driving component and L5 and / or the second driving component L6, thereby achieving precise adjustment of the slit width of the first grating L1 and / or the second grating L2, and thus achieving fine adjustment of the light source output. This not only improves the accuracy and stability of the light source adjustment, but also has the characteristics of easy integration, which can meet the specific requirements of different application scenarios for the light source.

[0083] In some embodiments, the first driving component L5 and / or the second driving component L6 are liquid crystal driving circuits.

[0084] The liquid crystal driving circuit is an important component of a liquid crystal display device, responsible for providing and controlling the voltage and current required by the liquid crystal display device. In the embodiments of this disclosure, the liquid crystal grating can be made of liquid crystal materials such as polymer dispersed liquid crystals (PDLC), polymer stabilized liquid crystals (PSLC), and cellulose based polymer dispersed liquid crystals (CPDLC).

[0085] In this embodiment, a liquid crystal driving circuit is provided for the first grating L1 and / or the second grating L2. The working state of the liquid crystal driving circuit and the magnitude of the voltage or current in the working state are controlled by a control component. The change in the magnitude of the current or voltage will cause the arrangement state of the liquid crystal molecules to change, thereby causing the slit width of the first grating L1 and the second grating L2 to change, so as to achieve the adjustment of the polarization and interference effect of the grating on the light source in this application.

[0086] It is understood that the light source adjustment device in the embodiments of this disclosure sets the first driving component L5 / or the second driving group L6 as a liquid crystal driving circuit, which makes full use of the fast response characteristics of the liquid crystal driving circuit so that the light source adjustment device can quickly adapt to different application requirements. At the same time, its high precision and stability improve the accuracy and reliability of light source adjustment.

[0087] In some embodiments, the light source adjustment device further includes:

[0088] The light-emitting component L3 is disposed opposite to the first grating L1 on the side away from the second grating L2, and is used to provide the light source.

[0089] In this embodiment of the disclosure, the light-emitting component L3 may be a light-emitting diode (LED), a laser diode, or other suitable light-emitting device.

[0090] Figure 3 This is an example of a light source adjustment device according to an exemplary embodiment. Figure 2 ,like Figure 3 As shown, the light-emitting component L3 is positioned opposite the first grating L1 on the side away from the second grating L2.

[0091] In this embodiment, considering that the relative position of the light-emitting component L3 with the first grating L1 and the second grating L2 may also affect the propagation path and optical effect of the light, the light-emitting component L3 is positioned on the side away from the second grating L2 and opposite to the first grating L1. This arrangement allows the light to be accurately projected onto the first grating L1, reducing energy loss during light propagation.

[0092] It is understood that the light source adjustment device in this embodiment of the present disclosure has a light-emitting component L3 disposed on the side away from the second grating L2 and opposite to the first grating L1, which enables the device to have a self-illuminating function, without relying on an external light source, improving the flexibility and portability of the device, and reducing energy loss during light propagation.

[0093] Figure 4 This is an example diagram illustrating a light source adjustment device according to an exemplary embodiment, such as... Figure 4As shown, the light source adjustment device includes a light-emitting component L3, and the light-emitting component L3 also has a corresponding light source driver L8, which is used to control the lighting of the light-emitting component L3. Figure 4 In the above text, each device is identified by a number, and L9 is, for example, the aforementioned device under test M3.

[0094] This disclosure also provides a method for adjusting a light source. Figure 5 This is a flowchart illustrating a light source adjustment method according to an exemplary embodiment. For example... Figure 5 As shown, the method mainly includes the following steps:

[0095] In step S51, an instruction to adjust the light source adjustment device is determined; wherein, the light source adjustment device includes the light source adjustment device described in any one of the embodiments of this disclosure;

[0096] In step S52, based on the instruction, the light source adjustment device is controlled to adjust the output of the light source.

[0097] In this embodiment of the disclosure, the light source adjustment method can be applied to any of the aforementioned light source adjustment devices, or to the control equipment of the light source adjustment device; this embodiment of the disclosure does not impose any limitations on this. For ease of description, the application of the light source adjustment method to a light source adjustment device will be used as an example for illustration.

[0098] In step S51, the light source adjustment device determines an instruction to adjust the light source adjustment device. This instruction can be user-defined or generated based on feedback from the illuminated device. In this embodiment, the instruction may include specific requirements for the light source output characteristics, such as light intensity and illumination position.

[0099] In step S52, the light source adjustment device controls the output of the light source to adjust based on the instruction determined in step S51. If the instruction includes an instruction to adjust the slit width of the first grating L1, then the slit width of the first grating L1 is adjusted; similarly, if the instruction includes an instruction to adjust the slit width of the second grating L2, then the slit width of the second grating L2 is adjusted.

[0100] It is understood that the light source output is adjusted based on the aforementioned light source adjustment device in this embodiment. Since the slit width of at least the second grating in the light source adjustment device is adjustable, the application range and practicality of the light source adjustment device are greatly improved. Moreover, the method of precisely adjusting the output of the light source by controlling the light source adjustment device through commands, compared with the method of adjusting the initial light angle or position of the light emitted by the light source using a mechanical structure, requires less space for the structure, reduces the occurrence of aging and wear, and has advantages such as high precision, fast adjustment speed, and high flexibility.

[0101] In some embodiments, the method further includes:

[0102] The first distance between each irradiated device illuminated by the light output from the light source adjustment device, and the second distance between the second grating and each irradiated device are obtained; wherein each irradiated device is disposed opposite to the second grating L2 on the side away from the first grating L1.

[0103] The instruction to adjust the light source adjustment device includes:

[0104] Based on the first distance, the second distance, and the preset wavelength of the light source, an instruction is determined to adjust the slit width of the second grating L2 in the light source adjustment device.

[0105] Figure 6 This is a grating interference experimental diagram illustrating a light source adjustment device according to an exemplary embodiment, such as... Figure 6 As shown, the light source adjustment device structure includes a first grating L1, a second grating L2, and a light-emitting component L3. The first grating L1 and the second grating L2 are arranged parallel to each other. The slit spacing of the second grating is d. The light emitted by the light-emitting component L3 is output after interference by the first grating L1 and the second grating L2 and is projected onto the target plane L4. The spacing between adjacent bright fringes in the projected interference fringes is Δx.

[0106] Figure 7 for Figure 6 The corresponding optical path diagram, such as Figure 7 As shown, Figure 7 As shown, the light source becomes polarized light after passing through the first grating L1, and then produces an interference effect after passing through the second grating L2, forming equally spaced bright and dark stripes that are projected onto the target plane L4. The distance between the second grating L2 and the target plane L4 is D, the slit width of the second grating L2 is d, and the distance between the bright stripe point P and the center point O is x.

[0107] In the principle of multi-slit interference of light, when two light waves interfere with each other, if the optical path difference is an even multiple of half the wavelength, the peaks and troughs of the two light waves propagate in the same direction, producing a superposition effect, which enhances the intensity of the light and makes it appear brighter, i.e., bright fringes appear. Conversely, if the optical path difference is an odd multiple of half the wavelength, the peaks and troughs of the two light waves will cancel each other out, producing a weakening effect, and the intensity of the light will decrease, i.e., dark fringes appear.

[0108] like Figure 6 As shown, point P represents the light fringe resulting from the superposition of waves generated by the two light sources exhibiting interference effects. The formula for calculating the optical path difference δ is as shown in formula (1):

[0109] δ=r2-r1=d*sinθ (1)

[0110] Where r2 is the distance between the two light sources where the interference effect occurs. Figure 6 The optical path length of the light source in the middle slit S2, r1 is the distance between the two light sources that cause the interference effect. Figure 6 The optical path of the light source in the middle slit S1 is θ, which is the deflection angle of the second grating L2, that is, the angle between the light fringe at point P and the screen normal.

[0111] During the experiment, the distance D between the second grating L2 and the target plane L4 is generally much larger than the distance d between the slits of the second grating L2. Under this condition, sinθ≈tanθ can be satisfied, and the optical path difference can be obtained as shown in formula (2):

[0112]

[0113] Based on the aforementioned principle of multi-slit interference of light, when the optical path difference is an even multiple of half the wavelength, point P is a bright fringe, and the following formula (3) can be obtained:

[0114]

[0115] From the above formula (3), the formula (4) for the distance x between each level of bright stripe and the center point O can be derived:

[0116]

[0117] Where k is the order of the bright fringes of the light on the target plane L4, between the projection point and the center point O. For example, when k = 0, the bright fringe is a zero-order bright fringe or a central bright fringe, and when k = 1, the bright fringe is a first-order bright fringe.

[0118] Based on the aforementioned principle of multi-slit interference of light, when the optical path difference is equal to an odd multiple of half the wavelength, point P is a dark fringe, and the following formula (5) can be obtained:

[0119]

[0120] From the above formula (5), the formula (6) for the distance x between each level of dark stripe and the center point O can be derived:

[0121]

[0122] Where k is the order of the dark fringes of the light between the projection point on the target plane L4 and the center point O. For example, when k = 0, the dark fringe is a zero-order dark fringe, and when k = 1, the dark fringe is a first-order dark fringe.

[0123] As can be seen from the above, the formula (7) for the spacing between adjacent bright fringes or adjacent dark fringes is:

[0124]

[0125] From the above-derived formula (7), it can be seen that the slit spacing d of the second grating L2 is related to the spacing Δx between adjacent bright fringes, the distance D between the second grating L2 and the target plane L4, and the wavelength λ of the incident light. Therefore, when determining the slit spacing d of the second grating L2, since the wavelength λ of the incident light is constant, it is only necessary to obtain the distance D between the second grating L2 and the target plane L4, and the spacing Δx between adjacent bright fringes.

[0126] In this embodiment, since the light output by interference needs to be provided to the irradiated device, the spacing Δx between adjacent bright fringes can be set as a first distance between each irradiated device, and the distance D between the second grating L2 and the target plane L4 can be set as a second distance between the second grating L2 and each irradiated device. In this embodiment, the first distance and the second distance can be predetermined, and the light source can be adjusted by the edge light source adjustment device. In this embodiment, the first distance between each irradiated device can be the same, and the second distance between the second grating L2 and each irradiated device can also be the same.

[0127] In this embodiment, the light source adjustment device determines an instruction to adjust the slit width of the second grating L2 based on each first distance, each second distance, and a preset wavelength of the light source. As mentioned above, when determining the instruction to adjust the slit spacing d of the second grating L2 (i.e., the slit width of the second grating L2 in the light source adjustment device), it is only necessary to obtain the spacing Δx between adjacent bright fringes (i.e., each first distance) and the distance D between the second grating L2 and the target plane L4 (i.e., each second distance). When each first distance and each second distance are equal, the slit width of the second grating L2 in the light source adjustment device can be directly calculated. In this embodiment, if each first distance or each second distance is not equal, for example, the instruction to adjust the slit width of the second grating L2 in the light source adjustment device can be determined by taking the average of the first distance or the second distance; wherein, the unequal first distances may be caused by the different spacing between the slits on the second grating L2.

[0128] It is understood that the embodiments of this disclosure can achieve dynamic adjustment based on the position of each irradiated device and the wavelength of the light source in the actual use environment, thereby improving the accuracy and efficiency of light source adjustment and meeting diverse application needs.

[0129] In some embodiments, the method further includes:

[0130] Obtain the light intensity value fed back by each irradiated device illuminated by the light source output by the light source adjustment device;

[0131] The instruction to adjust the light source adjustment device includes:

[0132] In response to the determination that the light intensity value fed back by each irradiated device does not meet the preset light intensity threshold, an instruction is given to adjust the light source adjustment device.

[0133] In this embodiment, after the irradiated device receives the light source, the light source adjustment device can obtain the light intensity value fed back by each irradiated device from the light source output by the light source adjustment device through the light sensor component in each irradiated device. In response to determining that the preset light intensity threshold is not met based on the light intensity value fed back by each irradiated device, the light source adjustment device can determine an instruction to adjust the light source. In this embodiment, when determining whether the preset light intensity threshold is met, the light source adjustment device may compare the light intensity value fed back by each irradiated device with a preset first light intensity threshold individually, or it may compare a statistical value such as the average or median with a preset second light intensity threshold; this embodiment does not impose any limitations.

[0134] In this embodiment, if the light intensity value fed back by each irradiated device is determined to be lower than a preset light intensity threshold, the light source adjustment device, for example, will determine an instruction to adjust itself to increase the output intensity of the light source until the preset light intensity threshold is met; if the light intensity value fed back by each irradiated device is determined to be higher than the preset light intensity threshold, the light source adjustment device will perform corresponding adjustments to reduce the output intensity of the light source until the preset light intensity threshold is met. The above adjustments include adjusting the slit width of the first grating L1 and the second grating L2.

[0135] It is understood that in this embodiment of the present disclosure, by acquiring the light intensity values ​​fed back by each irradiated device, and determining the instruction to adjust the light source adjustment device when it is determined based on these light intensity values ​​that the preset light intensity threshold is not met, automatic light source adjustment based on light intensity feedback is realized, reducing the need for manual intervention and meeting the lighting requirements of different scenarios.

[0136] In some embodiments, the instruction to adjust the light source adjustment device in response to determining, based on the light intensity values ​​fed back by each irradiated device, that a preset light intensity threshold is not met, includes:

[0137] In response to the determination that the preset light intensity threshold is not met based on the light intensity values ​​fed back by each irradiated device, an instruction is determined to adjust the light source adjustment device based on the adjustment range of the slit width supported by the first grating L1 and / or the second grating L2.

[0138] In this embodiment of the present disclosure, the light source adjustment device, in response to determining that the preset light intensity threshold is not met based on the light intensity values ​​fed back by each irradiated device, determines an instruction to adjust the light source adjustment device based on the adjustment range of the slit width supported by the first grating L1 and / or the second grating L2.

[0139] When using a preset light intensity threshold as the judgment criterion, the light source adjustment device can arbitrarily select one or both of the first grating L1 and the second grating L2 for adjustment. For example, taking the second grating L2 as the adjustment object, the light source adjustment device sets the slit width parameter for each adjustment in steps based on the slit width adjustment range supported by the second grating L2, and compares the light intensity value fed back by each irradiated device after each adjustment with the preset light intensity threshold until the light intensity value fed back by each irradiated device is determined to meet the preset light intensity threshold.

[0140] It is understood that in this embodiment of the present disclosure, when the light intensity value does not meet the preset light intensity threshold, the light source adjustment device will determine the instruction to adjust the light source adjustment device based on the adjustment range of the slit width supported by the first grating L1 and / or the second grating L2, thereby improving the accuracy and efficiency of the automatic adjustment of the light source based on light intensity feedback.

[0141] In some embodiments, determining the instruction to adjust the light source adjustment device based on the adjustment range of the slit width supported by the first grating L1 and / or the second grating L2 includes:

[0142] In response to adjusting either the first grating L1 or the second grating L2, an instruction for the grating to be adjusted is determined based on the adjustment range of the slit width supported by the grating to be adjusted and the current slit width of the gratings other than the grating to be adjusted.

[0143] In this embodiment, the light source adjustment device responds to adjusting either the first grating L1 or the second grating L2. Based on the adjustment range of the slit width supported by the grating to be adjusted and the current slit width of the grating other than the grating to be adjusted, the device determines the instruction for the grating to be adjusted. Using a preset light intensity threshold as the judgment criterion, the light source adjustment device can arbitrarily select one grating from the first grating L1 and the second grating L2 as the grating to be adjusted. Since the two gratings are mutually compatible, the slit width adjustment value of the grating to be adjusted can be determined within the adjustment range of the slit width supported by the grating to be adjusted, based on the current slit width value of the other grating. The light intensity values ​​fed back by each irradiated device after each adjustment are compared with the preset light intensity threshold until the light intensity values ​​fed back by each irradiated device are determined to meet the preset light intensity threshold.

[0144] It is understood that in this embodiment of the present disclosure, when the light intensity value does not meet the preset light intensity threshold, the adjustment value of the slit width of the grating to be adjusted in the light source adjustment device is determined based on the current slit width value of another grating other than the grating to be adjusted. This method can improve the efficiency of light source adjustment.

[0145] Figure 8 This is a complete flowchart illustrating a light source adjustment method according to an exemplary embodiment. Figure 8 As shown, the complete process includes the following steps:

[0146] S81, Open the first and second gratings;

[0147] In this embodiment of the present disclosure, the light source adjustment device opens the first grating L1 and the second grating L2 to receive the light source, thereby realizing the polarization conversion of the light source under the first grating L1 and the light interference reaction after passing through the second grating L2.

[0148] S82. Adjust the raster parameters;

[0149] In this embodiment of the present disclosure, the light source adjustment device adjusts the light source by adjusting the slit width of the first grating L1 and / or the second grating L2, using the adjusted grating slit width parameter.

[0150] S83, generating interference fringes;

[0151] In this embodiment of the present disclosure, the light source adjustment device acts on the light source with a first grating L1 and a second grating L2 adjusted based on the slit width, so that after the light source passes through the two gratings, an interference reaction occurs, generating interference fringes.

[0152] S84, The device under test receives light;

[0153] In this embodiment of the disclosure, the device under test (DUT) can be the aforementioned irradiated device including a light sensor. The light source adjustment device adjusts the light source based on the slit width adjusted by the first grating L1 and the second grating L2. The DUT receives the adjusted light source and collects the intensity of the light source irradiating the DUT according to the light sensor on the DUT.

[0154] S85. Determine if it is the optimal light stripe.

[0155] In this embodiment, the light source adjustment device determines whether the intensity of the illuminated light source meets the preset light intensity threshold based on the light source intensity fed back by the sensor on the device under test (DUT). If the intensity does not meet the preset light intensity threshold, the light source adjustment device determines an adjustment command until the intensity of the illuminated light source meets the preset light intensity threshold.

[0156] Figure 9This is a block diagram illustrating a light source adjustment device according to an exemplary embodiment. Figure 9 As shown, the device 900 mainly includes:

[0157] The determining module 901 is configured to determine an instruction to adjust the light source adjusting device; wherein the light source adjusting device includes the light source adjusting device described in any one of the embodiments of this disclosure;

[0158] The control module 902 is configured to control the light source adjustment device to adjust the output of the light source based on the instructions.

[0159] In some embodiments, the apparatus further includes:

[0160] The first acquisition module is configured to acquire a first distance between each irradiated device illuminated by the light source output by the light source adjustment device, and a second distance between the second grating L2 and the plurality of irradiated devices; wherein the plurality of irradiated devices are arranged opposite to the second grating on the side away from the first grating L1.

[0161] The determining module 901 is further configured to determine an instruction to adjust the light source based on the first distance, the second distance, and the wavelength of the light source.

[0162] In some embodiments, the apparatus further includes:

[0163] The second acquisition module is configured to acquire the light intensity value fed back by each irradiated device irradiated by the light source output by the light source adjustment device.

[0164] The determining module 901 is further configured to determine an instruction to adjust the light source in response to determining, based on the light intensity values ​​fed back by each of the irradiated devices, that the preset light intensity threshold is not met.

[0165] In some embodiments, the determining module 901 is further configured to, in response to determining that the preset light intensity threshold is not met based on the light intensity values ​​fed back by each of the irradiated devices, determine an instruction to adjust the light source based on the adjustment range of the slit width supported by the first grating L1 and / or the second grating L2.

[0166] In some embodiments, the determining module 901 is further configured to, in response to adjusting either the first grating L1 or the second grating L2, determine an instruction for the grating to be adjusted based on the adjustment range of the slit width supported by the grating to be adjusted and the current slit width of the gratings other than the grating to be adjusted.

[0167] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0168] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory including executable instructions or a computer program that can be executed by a processor of the device to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), a compact disc read-only memory (CD-ROM), magnetic tape, floppy disk, and optical data storage device, etc.

[0169] A non-transitory computer-readable storage medium, when the instructions in the storage medium are executed by a processor of a mobile terminal, enables the mobile terminal to perform any of the light source adjustment methods described in the embodiments of this disclosure. For example, the method includes:

[0170] An instruction is given to adjust the light source adjustment device; wherein the light source adjustment device includes the light source adjustment device described in any one of the embodiments of this disclosure;

[0171] Based on the instructions, the light source adjustment device is controlled to adjust the output of the light source.

[0172] This disclosure provides a computer program product comprising a computer program or executable instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer program or executable instructions from the computer-readable storage medium and executes the computer program or executable instructions, causing the computer device to perform any of the light source adjustment methods described above in this disclosure.

[0173] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the claims.

[0174] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A light source adjustment device, characterized in that, include: The first grating (L1) is used to convert the light source into polarized light; A second grating (L2) is disposed opposite to the first grating (L1) and is used to adjust the interference of the polarized light after passing through the second grating (L2) and output based on the slit width of the second grating (L2); wherein the slit width of the second grating (L2) is adjustable.

2. The light source adjustment device according to claim 1, characterized in that, The light source adjustment device further includes: A first driving component (L5) is connected to the first grating (L1) and is used to adjust the slit width of the first grating (L1) to change the polarization direction of the light source; The second drive assembly (L6), connected to the second grating (L2), is used to adjust the slit width of the second grating (L2).

3. The light source adjustment device according to claim 2, characterized in that, The light source adjustment device further includes: A control component (L7) is connected to the first drive component (L5) and / or the second drive component (L6) respectively, for controlling the first drive component (L5) to adjust the slit width of the first grating (L1), and / or for controlling the second drive component (L6) to adjust the slit width of the second grating (L2).

4. The light source adjustment device according to claim 3, characterized in that, The first driving component (L5) and / or the second driving component (L6) are liquid crystal driving circuits.

5. The light source adjustment device according to claim 1, characterized in that, The light source adjustment device further includes: A light-emitting component (L3) is disposed opposite to the first grating (L1) on the side away from the second grating (L2) and is used to provide the light source.

6. A method for adjusting a light source, characterized in that, The method includes: A command is given to adjust the light source adjustment device; wherein the light source adjustment device includes the light source adjustment device according to any one of claims 1-5; Based on the instructions, the light source adjustment device is controlled to adjust the output of the light source.

7. The method according to claim 6, characterized in that, The method further includes: The first distance between each irradiated device illuminated by the light output from the light source adjustment device, and the second distance between the second grating (L2) and each irradiated device are obtained; wherein each irradiated device is arranged opposite to the second grating (L2) on the side away from the first grating (L1); The instruction to adjust the light source adjustment device includes: Based on each first distance, each second distance, and the preset wavelength of the light source, an instruction is determined to adjust the slit width of the second grating (L2) in the light source adjustment device.

8. The method according to claim 7, characterized in that, The method further includes: Obtain the light intensity value fed back by each irradiated device illuminated by the light source output by the light source adjustment device; The instruction to adjust the light source adjustment device includes: In response to the determination that the light intensity value fed back by each irradiated device does not meet the preset light intensity threshold, an instruction is given to adjust the light source adjustment device.

9. The method according to claim 8, characterized in that, The instruction to adjust the light source adjustment device in response to determining, based on the light intensity values ​​fed back by each irradiated device, that the preset light intensity threshold is not met, includes: In response to the determination that the preset light intensity threshold is not met based on the light intensity values ​​fed back by each irradiated device, an instruction to adjust the light source adjustment device is determined based on the adjustment range of the slit width supported by the first grating (L1) and / or the second grating (L2).

10. The method according to claim 9, characterized in that, The instruction to adjust the light source adjustment device based on the adjustment range of the slit width supported by the first grating (L1) and / or the second grating (L2) includes: In response to adjusting either the first grating (L1) or the second grating (L2), an instruction for the grating to be adjusted is determined based on the adjustment range of the slit width supported by the grating to be adjusted and the current slit width of the gratings other than the grating to be adjusted.

11. A light source adjustment device, characterized in that, The device includes: A determining module is configured to determine an instruction to adjust a light source adjusting device; wherein the light source adjusting device includes the light source adjusting device according to any one of claims 1-5; The control module is configured to control the light source adjustment device to adjust the output of the light source based on the instructions.

12. A non-transitory computer-readable storage medium storing a computer program or instructions, characterized in that, When the computer program or instructions in the storage medium are executed by a processor, the steps of the method according to any one of claims 6 to 10 are implemented.

13. A computer program product, comprising a computer program or instructions, characterized in that, When the computer program or instructions are executed by a processor, they implement the steps of the method according to any one of claims 6 to 10.

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