Anti-fog breathable VR glasses

By designing ventilation and adjustment mechanisms inside the VR glasses, airflow circulation cooling and defogging are achieved, solving the problems of stuffiness and lens fogging during long-term use of VR glasses and improving user comfort.

CN120871435AInactive Publication Date: 2025-10-31BEIJING FUTURE CHAMPION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510884851.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-30
Publication Date
2025-10-31
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing VR glasses cause stuffiness due to increased air temperature around the eyes during prolonged use, sweating at the point where the mask touches the face, and fogging of the lenses, all of which negatively impact the user experience.

Method used

A VR glasses design was developed that is fog-proof and breathable. An internal ventilation mechanism creates airflow circulation, and a guide and adjustment mechanism ensure that the airflow direction is towards the lens. Combined with exhaust and exhaust fans, airflow circulation achieves cooling and defogging.

Benefits of technology

It effectively reduces the temperature around the eyes, prevents lenses from fogging up, improves the user's feeling of stuffiness and sweating, and enhances user comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses anti-fog breathable VR glasses, and particularly relates to the technical field of VR glasses, the anti-fog breathable VR glasses comprise an equipment body, a head band, a mask, a ventilation mechanism and an adjusting mechanism, the mask is internally provided with a first air duct, the side wall of the mask is provided with a plurality of ventilation slots, and when air flows from the first air duct and passes through the ventilation slots, the air can blow the face of a user; the ventilation mechanism comprises a second air duct and a third air duct which are arranged in the equipment body, and the ventilation mechanism can extract air in the VR glasses and extract external air into the VR glasses; according to the VR glasses, airflow circulation is formed in the VR glasses, meanwhile, air can blow the face skin of a user in the flowing process when passing through the ventilation grooves, the face of the user is cooled, and the problem that when the VR glasses are used for a long time, the face of the user is not affected is effectively solved. The temperature of air around the eyes rises, and the mask and the face are stuffy.
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Description

Technical Field

[0001] This invention relates to the field of VR glasses technology, and more specifically, to a type of anti-fog and breathable VR glasses. Background Technology

[0002] VR glasses are head-mounted display devices that create a 3D virtual environment with depth and coverage in front of the user's eyes through independent high-definition screens for each eye and special optical lenses. When the user wears them and moves their head, built-in sensors track the movement in real time and adjust the display accordingly, creating an immersive experience that makes the user feel as if they are truly in the digital world. They are mainly used in various scenarios such as gaming, education and training, virtual travel, architectural design previews, and simulation training. To prevent light leakage and maintain the user experience, the mask conforms to the user's facial contours, creating a sealed, opaque environment. However, because the mask fits tightly to the face, air circulation around the eyes is restricted. With prolonged use, the temperature of the air around the eyes gradually increases, causing the user to feel stuffy. A large temperature difference between the air around the eyes and the lenses can also cause fogging, affecting the user's comfort.

[0003] Chinese patent application number 202410930801.1 discloses a breathable and heat-dissipating VR headset, including VR glasses, straps, a backrest, and a face pad. Three straps are snapped onto the outer wall of the VR glasses, with the ends of the straps away from the VR glasses snapped onto the backrest. A face pad is snapped onto the edge of the VR glasses near the backrest. An air extraction assembly is installed inside the VR glasses, including a trigger cavity inside the VR glasses. A temperature sensor is fixedly connected to the bottom of the inner cavity of the trigger cavity. This invention uses a three-speed geared roller to drive a fan to rotate rapidly at the air extraction port during the fan's rotation. This invention removes air from between the VR glasses and the wearer's face, lowering the temperature of the space between them. However, when the fan is blowing air, air flows between the eyes and lenses. Because the distance between the VR glasses lenses and the eyes is small, this airflow may blow into the eyes, causing discomfort. When the ventilation component is turned on, external light can penetrate into the VR glasses, affecting the user's experience. When fog forms on the lenses, the user must use a combination of lenses and a sponge strip to wipe them to remove the fog, which also affects the viewing experience.

[0004] Furthermore, since the mask fits tightly to the user's face, sweating can easily occur at the point of contact with the face during prolonged use, affecting the user experience. Therefore, this invention proposes an anti-fog and breathable VR glasses to solve the above problems. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, embodiments of the present invention provide a fog-proof and breathable VR glasses to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fog-proof and breathable VR headset, comprising: a device body, a headband, a face mask, a ventilation mechanism, and an adjustment mechanism. The device body contains lenses. The face mask has a first air duct inside and multiple ventilation slots on its sidewalls. When air flows through the first air duct and the ventilation slots, the air can blow onto the user's face. The ventilation mechanism includes a second air duct and a third air duct disposed inside the device body. The ventilation mechanism can draw air from inside the VR headset through the second air duct and then through the first air duct, and can also draw external air into the VR headset through the third air duct. The adjustment mechanism includes an adjustment component disposed inside the device body, which ensures that the airflow direction of the air outlet in the third air duct always faces the lenses.

[0007] Preferably, the face mask is disposed at one end of the device body, the ventilation slot is opened at the end of the face mask away from the device body, and a guide component is fixedly connected in the first air duct, wherein there are multiple guide components and they correspond to the ventilation slot.

[0008] Preferably, a first exhaust port is provided inside the device body near the lens, the first exhaust port is connected to a second air duct, and the second air duct is connected to the first air duct.

[0009] Preferably, a fourth air duct is provided inside the device body, the fourth air duct is connected to the first air duct, and an exhaust fan is fixedly connected to the end of the device body away from the mask, and the fourth air duct is connected to the air inlet of the exhaust fan.

[0010] Preferably, a first air inlet is provided at one end of the third air duct, and a blower fan is provided inside the device body, with the outlet end of the blower fan connected to the first air inlet.

[0011] Preferably, a rotating wheel is rotatably connected to the side wall of the device body, and a transmission component is provided at one end of the rotating wheel. The adjusting component is connected to the rotating wheel through the transmission component.

[0012] Preferably, the device body has a rotating shaft inside, which is rotatably connected to the device body. The rotating shaft is connected to the rotating wheel through the transmission component. When the rotating shaft rotates, it can drive the lens to slide inside the device body.

[0013] Preferably, there are multiple second air ducts symmetrically distributed inside the device body, and multiple third air ducts symmetrically distributed on both sides of the device body.

[0014] Preferably, the mask has multiple second air inlets inside, and the multiple second air inlets and second air ducts are respectively connected to corresponding second air ducts.

[0015] Preferably, the mask has multiple second exhaust holes inside, and the second exhaust holes are connected to the fourth air duct.

[0016] The technical effects and advantages of this invention are as follows:

[0017] This invention reduces the temperature around the eyes by creating an airflow circulation inside the VR glasses when worn. Simultaneously, the airflow through the ventilation channels blows onto the user's facial skin, accelerating sweat evaporation and cooling the face. This effectively improves the problem of increased air temperature around the eyes and stuffiness caused by sweating during prolonged VR glasses use. Furthermore, when the lenses fog up, a third air duct quickly dries the fog, and an adjustable mechanism ensures the airflow is always directed towards the lenses, preventing air from blowing directly into the user's eyes and causing discomfort. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is an exploded view of the overall structure of the present invention.

[0020] Figure 3 This is a cross-sectional view of the second and fourth air ducts of the present invention.

[0021] Figure 4 This is a schematic diagram of the overall structure of the face mask of the present invention.

[0022] Figure 5 This is a cross-sectional view of the third air duct of the present invention.

[0023] Figure 6 This is a cross-sectional view of the device body of the present invention at the lens.

[0024] Figure 7 This is a bottom view of the overall structure of the present invention.

[0025] Figure 8 This is a schematic diagram of the overall structure of the turntable, adjusting component, and rotating shaft of the present invention.

[0026] The attached figures are labeled as follows: 1. Equipment body; 11. Lens; 12. Rotating shaft; 2. Headband; 3. Face mask; 31. First air duct; 311. Second air inlet; 312. Second exhaust outlet; 32. Ventilation slot; 33. Air guide; 4. Ventilation mechanism; 41. Second air duct; 411. First exhaust outlet; 42. Third air duct; 421. First air inlet; 43. Fourth air duct; 44. Exhaust fan; 45. Supply fan; 5. Adjustment mechanism; 51. Adjustment component; 52. Rotary wheel. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1

[0029] In actual use, the air temperature around the eyes gradually rises when using VR glasses for a long time, which makes the user feel stuffy and sweaty at the point where the VR glasses touch the face, affecting the user experience. This embodiment was invented to solve the above problems.

[0030] Please see Figures 1 to 8 As shown, an embodiment of the present invention provides an anti-fog and breathable VR headset, including a device body 1, a headband 2, a face mask 3, a ventilation mechanism 4, and an adjustment mechanism 5. The device body 1 houses a lens 11. The face mask 3 has a first air duct 31 inside and multiple ventilation slots 32 on its side walls. When air flows from the first air duct 31 and passes through the ventilation slots 32, the air can blow onto the user's face. The ventilation mechanism 4 includes a second air duct 41 and a third air duct 42 disposed inside the device body 1. The ventilation mechanism 4 can direct air from inside the VR headset through the second air duct 41 and the first air duct 42. The air duct 31 is detached, and the ventilation mechanism 4 can draw outside air into the VR glasses through the third air duct 42; the adjustment mechanism 5 includes an adjustment component 51 set inside the device body 1, which can make the airflow direction of the air outlet of the third air duct 42 always face the lens 11. The mask 3 is detachably and fixedly connected to the device body 1, for example, by Velcro, tenon and mortise connection, etc. When the user wears the VR glasses, the side of the mask 3 away from the device body 1 fits against the user's face. The device body 1 is equipped with a controller for controlling the VR glasses. This is existing technology and will not be described in detail here.

[0031] Please see Figure 3 and Figure 4As shown, the mask 3 is set at one end of the device body 1, the ventilation slot 32 is opened at the end away from the device body 1, and the first air duct 31 is fixedly connected with a guide 33. There are multiple guides 33 and they correspond to the ventilation slot 32. When the user finishes wearing the VR glasses, the guide 33 does not come into contact with the user's face.

[0032] Please see Figure 5 As shown, a first exhaust port 411 is provided inside the device body 1 near the lens 11. The first exhaust port 411 is connected to the second air duct 41, and the second air duct 41 is connected to the first air duct 31. Figure 4 As shown, a fourth air duct 43 is provided inside the device body 1, which is connected to the first air duct 31. An exhaust fan 44 is fixedly connected to the end of the device body 1 away from the mask 3. The fourth air duct 43 is connected to the air inlet of the exhaust fan 44. When the user uses VR glasses, the exhaust fan 44 can draw the air between the device body 1 and the user's face through the first exhaust port 411, the second air duct 41, the first air duct 31, and the fourth air duct 43. A first air inlet 421 is provided at one end of the third air duct 42. A blower fan 45 is provided inside the device body 1. The air outlet of the blower fan 45 is connected to the first air inlet 421. The exhaust fan 44 is connected to the controller via electrical signal, and the blower fan 45 is connected to the controller via electrical signal.

[0033] Please see Figure 3 and Figure 6 As shown, there are multiple second air ducts 41 symmetrically distributed inside the equipment body 1, and multiple third air ducts 42 symmetrically distributed on both sides of the equipment body 1.

[0034] Please refer to Figure 3. The mask 3 has multiple second air inlets 311 inside. The second air inlets 311 are evenly distributed at the four corners of the mask 3. The second air inlets 311 are connected to the corresponding second air ducts 41. The mask 3 has multiple second exhaust holes 312 inside. The second exhaust holes 312 are connected to the fourth air duct 43.

[0035] During use, the user puts on the device body 1 and secures it with the headband 2. After wearing, the side wall of the mask 3 away from the device body 1 contacts the user's face, while the air guide 33 does not contact the user's face. When the user feels stuffy around their face and eyes after prolonged use of the VR glasses, they can activate the exhaust fan 44 via the controller. Since the fourth air duct 43 is connected to the air inlet of the exhaust fan 44, a negative pressure is generated inside the fourth air duct 43. This causes the gas inside the device body 1 to enter the fourth air duct 43 through the first exhaust port 411, the second air duct 41, and the first air duct 31, and then be discharged. External gas passes through the first air inlet 421. The third air duct 42 enters the device body 1, forming an airflow circulation to reduce the temperature around the eyes. As the gas passes through the first air duct 31 and enters the fourth air duct 43, the gas flows inside the first air duct 31. When the airflow passes through the guide 33 and the ventilation slot 32, since the guide 33 does not come into contact with the user's face, the gas is guided by the guide 33, so that when the gas passes through the ventilation slot 32, it can blow on the user's facial skin during the flow, accelerate the evaporation of sweat on the skin surface, and cool down the user's face. This effectively improves the problem of the air temperature around the eyes gradually rising and the mask and face sweating and feeling stuffy when using VR glasses for a long time.

[0036] Example 2

[0037] In actual use, it was found that as the temperature around the eyes of the VR glasses rises, when there is a large temperature difference between the air around the eyes and the lens 11, the hot air comes into contact with the cold lens 11 of the VR glasses, which causes a condensation effect, resulting in the lens 11 fogging up. Further improvements have been made based on the above embodiments.

[0038] Please see Figure 2 and Figure 5 As shown, a rotating wheel 52 is rotatably connected to the side wall of the device body 1. A transmission component is provided at one end of the rotating wheel 52. The adjusting component 51 is connected to the rotating wheel 52 through the transmission component. When the user rotates the rotating wheel 52, the rotating wheel 52 can drive the adjusting component 51 to rotate inside the device body 1. The transmission method is not limited, such as through gear transmission, which is the prior art and will not be described in detail here. The adjusting component 51 is provided with blades.

[0039] Please see Figure 8 As shown, a rotating shaft 12 is provided inside the device body 1. The rotating shaft 12 is rotatably connected to the device body 1. The rotating shaft 12 is connected to the rotating wheel 52 through a transmission component. The rotating shaft 12 is connected to the lens 11 through a thread. When the rotating shaft 12 rotates, the rotating shaft 12 can drive the lens 11 to slide inside the device body 1. The transmission method between the rotating wheel 52 and the rotating shaft 12 is not limited. For example, it can be transmitted by chain drive, belt drive, gear drive, etc. This is the prior art and will not be described in detail here.

[0040] Based on the above embodiments, during use, when the user wears VR glasses and adjusts the interpupillary distance, rotating the wheel 52 drives the rotating shaft 12 to rotate, thereby causing the lens 11 to move on the rotating shaft 12. At the same time, the wheel 52 drives the adjusting member 51 to rotate inside the device body 1, thereby causing the airflow direction of the third air duct 42 outlet to deflect with the rotation of the adjusting member 51, thus ensuring that the airflow direction of the third air duct 42 outlet is always towards the lens 11. When the lens 11 fogs up, the controller starts the blower fan 45. Since the air outlet of the blower fan 45 is connected to the first air inlet 421, external air is drawn by the blower fan 45 through the first air inlet 421. The airflow increases within the third air duct 42, blowing towards the lens 11 to quickly dry the fog on it. Simultaneously, external air is drawn directly into the VR glasses, accelerating airflow circulation and rapidly lowering the internal temperature. The airflow direction of the third air duct 42 is adjusted by the adjusting component 51 to always face the lens 11, preventing air from blowing directly into the user's eyes and causing discomfort. The airflow also quickly dries the fog on the lens 11, defogging it and preventing users from wiping the lens 11 during VR glasses use, thus improving the viewing experience.

[0041] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A type of anti-fog and breathable VR glasses, comprising a device body and a headband, wherein lenses are installed inside the device body, characterized in that, Also includes: The face mask has a first air duct inside and multiple ventilation slots on its side wall. When air flows from the first air duct and passes through the ventilation slots, the air can blow on the user's face. The ventilation mechanism includes a second air duct and a third air duct disposed inside the device body. The ventilation mechanism can draw air from inside the VR glasses through the second air duct and then through the first air duct, and can draw outside air into the VR glasses through the third air duct. The adjustment mechanism includes an adjustment component disposed inside the device body, which enables the airflow direction of the third air duct outlet to always face the lens.

2. The anti-fog and breathable VR glasses according to claim 1, characterized in that: The face mask is located at one end of the device body, and the ventilation slot is located at the end of the face mask away from the device body. A guide component is fixedly connected inside the first air duct, and there are multiple guide components corresponding to the ventilation slot.

3. The anti-fog and breathable VR glasses according to claim 2, characterized in that: The device body has a first exhaust port located at one end near the lens. The first exhaust port is connected to a second air duct, and the second air duct is connected to the first air duct.

4. The anti-fog and breathable VR glasses according to claim 3, characterized in that: The device body is provided with a fourth air duct, which is connected to the first air duct. An exhaust fan is fixedly connected to the end of the device body away from the mask, and the fourth air duct is connected to the air inlet of the exhaust fan.

5. The anti-fog and breathable VR glasses according to claim 4, characterized in that: One end of the third air duct is provided with a first air inlet, and a blower fan is provided inside the device body. The air outlet of the blower fan is connected to the first air inlet.

6. The anti-fog and breathable VR glasses according to claim 5, characterized in that: A rotating wheel is rotatably connected to the side wall of the device body, and a transmission component is provided at one end of the rotating wheel. The adjusting component is connected to the rotating wheel through the transmission component.

7. The anti-fog and breathable VR glasses according to claim 6, characterized in that: The device body has a rotating shaft inside, which is rotatably connected to the device body. The rotating shaft is connected to the rotating wheel through the transmission component. When the rotating shaft rotates, it can drive the lens to slide inside the device body.

8. The anti-fog and breathable VR glasses according to claim 7, characterized in that: The second air duct is multiple and symmetrically distributed inside the equipment body, and the third air duct is multiple and symmetrically distributed on both sides of the equipment body.

9. The anti-fog and breathable VR glasses according to claim 8, characterized in that: The mask has multiple second air inlets inside, and each of the multiple second air inlets and the second air duct is connected to a corresponding second air duct.

10. The anti-fog and breathable VR glasses according to claim 9, characterized in that: The mask has multiple second exhaust holes inside, which are connected to the fourth air duct.

Citation Information

Patent Citations

  • VR glasses with heat dissipation and ventilation

    CN118466034B