privacy device
By combining a privacy device with an electronic device, and utilizing a monochrome filter and the magnified display of the electronic device's camera, the problem of users with limited vision finding it difficult to detect hidden cameras is solved. This achieves high-precision and high-visibility detection, enhancing users' sense of security.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 东莞市格洛电子技术有限公司
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-02
Smart Images

Figure CN224319401U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of camera detection technology, and in particular to a privacy device. Background Technology
[0002] In today's accommodation environments or private spaces, such as hotels, there may be hidden miniature cameras, posing a significant threat to personal privacy and security. Because these cameras are concealed and difficult to detect, they are prone to being used for unauthorized filming and resulting in the leakage of personal information. Therefore, in such situations, counter-surveillance measures are of paramount importance in protecting personal privacy and security.
[0003] To address this type of security issue, several counter-surveillance devices have been developed. These devices are typically based on technologies such as optical detection, wireless signal detection, or thermal imaging. For example, optical detection devices emit infrared light to illuminate suspicious areas in a room; when the light hits a camera lens, it reflects obvious reflective points. Wireless signal detection devices can detect the presence of abnormal wireless signal transmissions in a room, thereby discovering hidden cameras.
[0004] However, in practical use, anomalies are often still detected visually. For users with myopia or amblyopia, limited vision makes these anomalies impossible to observe, thus limiting the practical application of existing anti-surveillance measures and making it difficult to meet the needs of all users. Utility Model Content
[0005] The main purpose of this invention is to propose a privacy device that aims to improve detection accuracy by utilizing external electronic equipment.
[0006] To achieve the above objectives, the privacy device includes:
[0007] A housing, wherein the housing is provided with a mirror frame;
[0008] The detection assembly includes a monochromatic filter and a light-emitting module. The monochromatic filter is disposed on the lens frame and surrounds the lens frame to form a detection cavity. The light-emitting module is disposed on the housing.
[0009] A fastener, located on the outside of the housing, configured to secure the housing to the electronic device;
[0010] The monochromatic filter is configured to filter out the reflected light from the light-emitting module.
[0011] In one embodiment of this utility model, the fixing member is a suction cup.
[0012] In one embodiment of the present invention, the suction cup has multiple suction nozzles arranged in an array.
[0013] In one embodiment of the present invention, a limiting groove is provided on the outer side of the housing, and the suction cup further includes a fixing plate, which is limited and disposed in the limiting groove;
[0014] Each of the suction nozzles is located on the side of the fixing plate facing away from the housing.
[0015] In one embodiment of this utility model, the limiting groove and the detection cavity are arranged at intervals along the vertical direction and are located below the detection cavity.
[0016] In one embodiment of the present invention, the bottom of the limiting groove is provided with a first insertion part, and the side of the fixing plate facing away from the suction nozzle is provided with a second insertion part, wherein the first insertion part is inserted into and cooperates with the second insertion part.
[0017] In one embodiment of this utility model, the privacy device is further provided with a normally open switch, and the normally open switch and the suction cup are arranged on the same side of the housing;
[0018] The normally open switch is configured to control the light-emitting module to enter the light-emitting state when the privacy device is mounted on the electronic device.
[0019] In one embodiment of this utility model, the privacy device is further provided with a mode switching switch, which is located on the other side of the housing corresponding to the normally open switch;
[0020] The mode switch is configured to switch between controlling the light-emitting module in a first light-emitting state and a second light-emitting state.
[0021] In one embodiment of this utility model, the light-emitting module is provided with a plurality of monochromatic light sources, each of the monochromatic light sources is provided on the first outer side of the housing, the fixing member is provided on the second outer side of the housing, and the first outer side and the first outer side are arranged opposite to each other;
[0022] The light-emitting surface of each of the monochromatic lamp sources protrudes from the first outer side.
[0023] In one embodiment of this utility model, a plurality of the monochrome light sources are arranged in a horizontal direction.
[0024] In this technical solution, the privacy device, by combining with an electronic device equipped with a camera, effectively solves the limitation of existing technologies where users rely on visual observation of reflective points, especially the difficulty for users with visual impairments such as myopia or amblyopia to detect hidden cameras. By fixing the privacy device to the electronic device and using the camera to magnify and display the detection area, users can clearly observe reflective points, easily identifying them even in low light or at a distance, thus significantly improving the visibility and accuracy of detection. Simultaneously, the monochromatic filter filters out other wavelengths of light, allowing only reflected light of specific wavelengths (such as red light) to pass through, further improving detection accuracy and reducing interference from ambient light. Furthermore, the privacy device is highly portable and versatile, allowing users to perform detection anytime, anywhere using the electronic device without carrying additional equipment, lowering the barrier to entry and expanding the product's applicability. Through these technical means, this invention not only improves detection efficiency but also enhances users' sense of security when staying in or using private spaces, effectively reducing the risk of privacy leaks. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0026] Figure 1 A front view of an embodiment of the privacy device provided by this utility model;
[0027] Figure 2 A rear view of an embodiment of the privacy device provided by this utility model;
[0028] Figure 3 Exploded view of an embodiment of the privacy device provided by this utility model;
[0029] Figure 4 A rear view of an embodiment of the fixing plate provided by this utility model;
[0030] Figure 5 A schematic diagram of another embodiment of the fixing plate provided by this utility model.
[0031] Explanation of icon numbers:
[0032] 100. Spying device;
[0033] 10. Housing; 11. Frame; 11a. Detection cavity; 10a. Limiting groove; 10b. Insertion hole;
[0034] 20. Detection component; 21. Monochrome filter; 22. Light emission module; 221. Monochrome lamp source;
[0035] 30. Fastener; 31. Nozzle; 32. Fixing plate; 321. Insertion post;
[0036] 40. Normally open switch;
[0037] 50. Mode switching switch.
[0038] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0040] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0041] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0042] Please see Figure 1 and Figure 2The privacy device 100 includes a housing 10, a detection component 20, and a fixing member 30. The housing 10 is provided with a frame 11. The detection component 20 includes a monochromatic filter 21 and a light-emitting module 22. The monochromatic filter 21 is disposed on the frame 11 and surrounds the frame 11 to form a detection cavity 11a. The light-emitting module 22 is disposed on the housing 10. The fixing member 30 is disposed on the outside of the housing 10 and is configured to fix the housing 10 to the electronic device. The monochromatic filter 21 is configured to filter out the reflected light from the light-emitting module 22.
[0043] In this technical solution, the privacy device 100, by combining with an electronic device equipped with a camera, effectively solves the limitation of existing technologies where users rely on visual observation of reflective points, especially the difficulty for users with visual impairments such as myopia or amblyopia to detect hidden cameras. By fixing the privacy device 100 to the electronic device and using the camera of the electronic device to magnify and display the image of the detection area, users can clearly observe the reflective points, even in low light or at a distance, thus significantly improving the visibility and accuracy of detection. Simultaneously, the monochromatic filter 21 filters out light of other wavelengths, allowing only reflected light of specific wavelengths (such as red light) to pass through, further improving detection accuracy and reducing interference from ambient light. Furthermore, the privacy device 100 is designed for high portability and versatility, allowing users to perform detection anytime, anywhere using the electronic device without carrying additional equipment, lowering the barrier to entry and expanding the product's applicability. Through these technical means, this invention not only improves detection efficiency but also enhances users' sense of security when staying in or using private spaces, effectively reducing the risk of privacy leaks.
[0044] Specifically, the housing 10 is divided into an upper housing 10 and a lower housing 10 according to its function. The upper housing 10 forms a frame 11 for fixing the monochromatic filter 21. The lower housing 10 provides a mounting base for the fixing component 30. It can be understood that the light source of the light-emitting module 22 is fixed on the main control board, and its light-emitting surface needs to protrude through the surface of the housing 10. In order to facilitate the installation of the detection component 20, the housing 10 is assembled from two shells. Both shells are provided with mounting slots. When the shells are assembled, the two mounting slots form a mounting cavity. The detection component 20 has circuits, batteries and other components located in the mounting cavity, thereby isolating most of the dust and other impurities in the atmosphere and preventing the main control board from reducing electrical performance due to excessive dust adsorption caused by static electricity.
[0045] The detection component 20 includes a monochromatic filter 21 and a light-emitting module 22. The light-emitting module 22 emits visible light. When the visible light is transmitted to a hidden miniature camera in the detection environment, the visible light is reflected by the lens of the hidden miniature camera to produce light. When the emitted light and ambient light are transmitted to the monochromatic filter 21, the monochromatic filter 21 can filter out the visible light emitted by the light-emitting module 22. Then, it enters the detection cavity 11a and is captured by the camera of an electronic device such as a mobile phone. Taking a mobile phone as an example, after the casing 10 is fixedly attached to the back of the mobile phone by the fastener 30, the mobile phone camera can face the detection cavity 11a. The user can magnify the image captured by the mobile phone camera through corresponding operations, thereby magnifying various positions in the detection environment, and thus magnifying the image of light produced by reflection by the lens of the hidden miniature camera. In this way, users with limited vision, such as those with myopia or amblyopia, can clearly observe the reflective points, and can easily identify them even in low light or at a distance, thereby significantly improving the visibility and accuracy of the detection.
[0046] It is understandable that the fixing member 30 can be a clamping structure rotatably disposed on the housing 10. By rotating the fixing member 30, the front and back of the mobile phone can be clamped so that the housing 10 is fixed on the back of the mobile phone. Of course, the fixing member 30 can also be a magnetic component that is compatible with certain mobile phone models. The back of such mobile phones is metal or the mobile phone has a wireless charging function. The magnetic fixing member 30 can also fix the housing 10 to the mobile phone shell.
[0047] It can also be understood that the monochrome filter 21 is configured to filter out the reflected light from the light-emitting module 22, meaning that the monochrome filter 21 can only allow light emitted by the light-emitting module 22 to pass through after reflection. For example, if the light-emitting module 22 emits red visible light, then the monochrome filter 21 is a red filter; or if the light-emitting module 22 emits blue visible light, then the monochrome filter 21 is a blue filter. Therefore, the specific types of the monochrome filter 21 and the light-emitting module 22 are not limited, as long as the emitted light and the filtered light are the same color.
[0048] Please see Figure 1 and Figure 2The fixing component 30 is a suction cup. From an adaptability perspective, the suction cup, as a non-invasive fixing method, can be widely adapted to the surfaces of electronic devices of various materials and shapes. Whether it is a smooth glass back panel, a plastic shell, or a metal device, the suction cup can achieve a stable fixation through adsorption force without relying on specific structural or material characteristics. This design allows the privacy device 100 to be easily installed on mobile phones, tablets, and other electronic devices of different brands and models, greatly improving the product's versatility and applicability. There is no need to design a separate adaptation scheme for each device. At the same time, the suction cup fixing method is simple to operate, allowing users to quickly install and remove the privacy device 100, facilitating switching between different devices and further enhancing the product's portability and practicality. From a stability perspective, the suction cup provides sufficient adsorption force to ensure that the privacy device 100 will not loosen or fall off due to device movement or slight collisions during use, thus ensuring the continuity and accuracy of the detection process. This stable fixing method provides users with reliable detection support, especially in scenarios requiring long-term or multiple detections, ensuring that the privacy device 100 is always in the correct working position, effectively improving the stability and reliability of the detection.
[0049] In one embodiment, the suction cup has a plurality of suction nozzles 31 arranged in an array. (See [link to relevant documentation]). Figure 1 Multiple suction nozzles 31 are arranged in an elliptical array. Each nozzle 31 forms an adsorption point, and these points, located in different areas, disperse the adsorption force, ensuring more uniform and tight contact between the suction cup and the device surface, thus achieving wider compatibility. Simultaneously, the array arrangement of multiple nozzles 31 provides a larger adsorption area and stronger adsorption force. Compared to a single nozzle 31, this design effectively disperses pressure, reducing the risk of loosening or detachment due to uneven localized force. During use, even if the device experiences slight movement or collision, the multiple nozzles 31 work together to maintain the stability of the privacy device 100, ensuring the detection process is undisturbed, thus providing users with more reliable and stable detection support. Of course, the multiple nozzles 31 can also be arranged in a circular array, rectangular array, etc., and are not limited here.
[0050] In one embodiment of this utility model, please refer to Figure 3The outer side of the housing 10 is provided with a limiting groove 10a. The suction cup also includes a fixing plate 32, which is positioned within the limiting groove 10a. Each suction nozzle 31 is located on the side of the fixing plate 32 facing away from the housing 10. By providing the limiting groove 10a on the outer side of the housing 10 and fixing the suction cup 32 within it, it is ensured that the suction cup will not shift or rotate during use, thus guaranteeing the fixation accuracy between the privacy device 100 and the electronic device. The limiting groove 10a provides a clear installation position and orientation for the suction cup, allowing it to be firmly fixed to the housing 10. Even if the device moves or is subjected to external force, the suction cup remains stable and will not loosen or fall off. Furthermore, positioning the suction nozzle 31 on the side of the fixing plate 32 facing away from the housing 10 allows the suction nozzle 31 to better contact the surface of the electronic device, while avoiding interference between the suction nozzle 31 and the housing 10, further improving the suction effect and stability of the suction cup.
[0051] To enhance the connection strength between the suction cup and the housing 10, a first insertion part is provided at the bottom of the limiting groove 10a, and a second insertion part is provided on the side of the fixing plate 32 facing away from the suction nozzle 31. The first insertion part engages with the second insertion part. This engagement not only provides an additional mechanical connection but also increases the contact area and friction, thereby significantly improving the stability of the suction cup on the housing 10. This structure allows the suction cup to be more firmly fixed to the housing 10 when subjected to external forces or equipment movement, reducing the risk of displacement or detachment due to vibration or collision. Simultaneously, the insertion design facilitates the installation and removal of the suction cup. Users can easily fix the suction cup to the housing 10 or quickly disassemble it for cleaning or replacement when needed without damaging the housing 10.
[0052] In one embodiment, please refer to Figure 3 and Figure 4The first insertion part is an insertion hole 10b, and the second insertion part is an insertion post 321. When the fixing plate 32 is installed in the limiting groove 10a, the insertion post 321 is fixed in the insertion hole 10b. When the limiting fit between the limiting groove 10a and the fixing plate 32 fails, the insertion post 321 and the insertion hole 10b can also play a limiting role. The two not only provide additional mechanical fixation, but also further enhance the connection strength between the suction cup and the housing 10 through the tight fit between the insertion post 321 and the insertion hole 10b. When the plug 321 is inserted into the plug hole 10b, it can effectively prevent the fixing plate 32 from shaking or shifting in the limiting groove 10a, ensuring that the suction cup remains stable during use. Even if the equipment moves or is subjected to external force, the suction cup will not loosen or fall off. In another embodiment, the first plug part is the plug 321 and the second plug part is the plug hole 10b, which can also provide additional mechanical fixation, increase the contact area and friction, thereby significantly improving the connection strength and stability between the suction cup and the housing 10.
[0053] Further, please refer to Figure 3 The limiting groove 10a and the detection cavity 11a are arranged vertically at intervals and are located below the detection cavity 11a. This structural layout further optimizes the overall design of the privacy device 100. First, this layout achieves a compact design, makes full use of space, avoids structural redundancy, and clearly defines functional areas. The detection cavity 11a focuses on detection operations, while the limiting groove 10a securely fixes the suction cup without interference. Second, stability is enhanced. The optimized center of gravity distribution makes the privacy device 100 more stable on electronic devices, reducing the risk of shaking or falling off. The suction cup, securely installed through the limiting groove 10a, further ensures fixing accuracy. In addition, operational convenience is greatly improved. Users can easily install and remove the suction cup, and this layout avoids interference from the suction cup to the detection cavity 11a, making detection operations more focused and efficient.
[0054] Further, please refer to Figure 5To improve the ease of use of the privacy device 100, a normally open switch 40 is also provided on the side of the housing 10 with the suction cup. Specifically, multiple suction nozzles 31 on the suction cup are arranged in an array, such as a circular array or a rectangular array. The array arrangement of the multiple suction nozzles 31 creates a clearance space on the suction cup, in which the normally open switch 40 is located. Thus, it is equivalent to having multiple suction nozzles arranged around the normally open switch 40 as the center point. In this way, when the user attaches the privacy device 100 to the electronic device, the suction effect of the suction nozzles 31 causes the back of the electronic device to automatically press against the normally open switch 40, applying pressure to the normally open switch 40. When the device is pressed, the normally open switch 40 is in the conducting state, thereby controlling the light-emitting module 22 to enter the light-emitting state. This setting integrates the installation action of the privacy device 100 and the pressing action of the normally open switch 40 into one step. That is, when the user is performing environmental testing, he only needs to assemble the privacy device 100 onto the electronic device, which can simultaneously turn on the light-emitting module 22. This avoids the user forgetting to turn on the switch before assembly or having to manually turn on the switch after assembly. At the same time, the multiple suction tubes surrounding the normally open switch 40 can ensure that the pressing pressure of the electronic device on the normally open switch 40 is uniform, avoiding problems such as unstable circuit conduction due to uneven force.
[0055] Please see Figure 2 The privacy device 100 also includes a mode switching switch 50, which is located on the other side of the housing 10 corresponding to the normally open switch 40. The mode switching switch 50 is configured to switch the light-emitting module 22 between a first light-emitting state and a second light-emitting state. It should be explained that the first light-emitting state of the light-emitting module 22 is a constant light state, and the second light-emitting state is a flashing light state. When the light-emitting module 22 enters the light-emitting state, the user can manually change the specific light-emitting state of the light-emitting module 22, such as by pressing and holding the mode switching switch 50 for a certain number of seconds or by pressing it briefly at least once within a certain time period to enter the first light-emitting state. The user can quickly press switch 50 to enter the second illumination state, etc., without being limited to these. When the illumination module 22 is in the first illumination state, the user can conduct a detailed investigation of the environment to find hidden cameras. When the user feels that a hidden camera has been found, the illumination state can be switched so that the illumination module 22 enters the second illumination state. In the second illumination state, because the light of the illumination module 22 is flashing, when there is a hidden camera in a certain location, it will emit red light and then be dark. By comparing the environment, the user can quickly detect and confirm the presence of a hidden camera in the environment. By setting the normally open switch 40, the detection capability of the anti-spy device 100 can be improved and the user's information judgment time can be shortened.
[0056] In one embodiment of this utility model, please refer to Figure 2The light-emitting module 22 is equipped with multiple monochromatic light sources 221, each of which is located on the first outer side of the housing 10. The fixing member 30 is located on the second outer side of the housing 10, with the first outer side and the second outer side being opposite to each other. The light-emitting surface of each monochromatic light source 221 protrudes from the first outer side. Specifically, the arrangement of multiple monochromatic light sources 221 provides more uniform and stronger illumination, effectively reducing shadows and blind spots in the detection area, making reflective points more clearly visible, thereby improving the accuracy and reliability of detection. Simultaneously, the protruding light-emitting surface of the monochromatic light source 221 further ensures direct light illumination, reducing obstruction and light scattering at the edges of the housing 10, and enhancing the clarity of detection. The symmetrical arrangement of the light-emitting module 22 and the fixing member 30 makes the overall structure of the privacy device 100 more balanced and stable, facilitating user operation, and enhancing structural stability during use, reducing the risk of loosening or detachment due to external forces.
[0057] Further, please refer to Figure 2 The multiple monochromatic light sources 221 are arranged horizontally. Because the monochromatic light sources 221 are arranged horizontally, it ensures that the detection area receives uniform and continuous illumination in the horizontal direction. Users do not need to move their devices horizontally; they can quickly scan all parts of the detection area by simply tilting their devices up and down, achieving comprehensive detection of the target area. This not only reduces the operational complexity for users during the detection process but also lowers the risk of misoperation or missed detection areas due to frequent device movement.
[0058] In one embodiment of this utility model, the detection component 20 further includes an electrically connected battery, a main control board, and a power charging port. The battery and the main control board are disposed inside the housing 10, and the power charging port is located on the outer periphery of the housing 10. By placing the battery and the main control board inside the housing 10, the privacy device 100 can operate independently without relying on an external power source or sharing a battery with other electronic devices. Users can use the privacy device 100 in any environment without worrying about power supply issues. Simultaneously, the main control board, integrated inside the housing 10, can effectively manage and control the operating status of the light-emitting module 22 and other detection components 20, ensuring stable operation of the device. Furthermore, the power charging port is located on the outer periphery of the housing 10, facilitating charging operations for users without affecting the overall structure and functionality of the privacy device 100.
[0059] The above are merely exemplary embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.
Claims
1. A privacy device for assembling electronic devices with cameras, characterized in that, The privacy device includes: A housing, wherein the housing is provided with a mirror frame; The detection assembly includes a monochromatic filter and a light-emitting module. The monochromatic filter is disposed on the lens frame and surrounds the lens frame to form a detection cavity. The light-emitting module is disposed on the housing. A fastener, located on the outside of the housing, configured to secure the housing to the electronic device; The monochromatic filter is configured to filter out the reflected light from the light-emitting module.
2. The privacy device as described in claim 1, characterized in that, The fixing component is a suction cup.
3. The privacy device as described in claim 2, characterized in that, The suction cup has multiple suction nozzles arranged in an array.
4. The privacy device as described in claim 3, characterized in that, The outer side of the housing is provided with a limiting groove, and the suction cup also includes a fixing plate, which is limited and disposed in the limiting groove; Each of the suction nozzles is located on the side of the fixing plate facing away from the housing.
5. The privacy device as described in claim 4, characterized in that, The bottom of the limiting groove is provided with a first insertion part, and the side of the fixing plate facing away from the suction nozzle is provided with a second insertion part, and the first insertion part is inserted into and cooperates with the second insertion part.
6. The privacy device as described in claim 4, characterized in that, The limiting groove and the detection cavity are arranged at intervals along the vertical direction and are located below the detection cavity.
7. The privacy device as described in any one of claims 2 to 6, characterized in that, The privacy device is also equipped with a normally open switch, which is disposed on the same side of the housing as the suction cup. The normally open switch is configured to control the light-emitting module to enter the light-emitting state when the privacy device is mounted on the electronic device.
8. The privacy device as described in claim 7, characterized in that, The privacy device is also equipped with a mode switching switch, which is located on the other side of the housing corresponding to the normally open switch. The mode switch is configured to switch between controlling the light-emitting module in a first light-emitting state and a second light-emitting state.
9. The privacy device as described in any one of claims 1 to 6, characterized in that, The light-emitting module is provided with multiple monochromatic light sources, each of which is located on the first outer side of the housing, and the fixing member is located on the second outer side of the housing. The first outer side and the first outer side are arranged opposite to each other. The light-emitting surface of each of the monochromatic lamp sources protrudes from the first outer side.
10. The privacy device as described in claim 9, characterized in that, The multiple monochromatic light sources are arranged horizontally.