A heated anti-fog lens

Abstract

The utility model relates to the field of lens technology and particularly to a heated anti-fog lens, comprising a frame, a lens group, an outer lens, a pressure cap, an outer cover, a moisture control material, a waterproof ring and a heating element, wherein the outer lens and the lens group are sequentially installed in the inner cavity of the frame from the outside to the inside, the pressure cap locks the outer lens on the frame, the heating element comprises an electrode wire and a conductive heating element, the outer cover is threadedly sleeved outside the pressure cap, the conductive heating element is clamped between the outer cover and the end face of the frame, the frame is provided with a channel, the electrode wire extends out of the frame through the channel, the outer lens is provided with a light-transmitting area and a non-light-transmitting area, the non-light-transmitting area, the end face of the frame and the lens group are surrounded by a moisture control space, the moisture control material and the waterproof ring are arranged in the moisture control space from the inside to the outside, and the waterproof ring is used to seal the gap between the non-light-transmitting area and the frame. The outer lens of the present application is not easy to fall off, which solves the problem of frost and ice on the surface of the outer lens in a low temperature environment, and also solves the problem of water mist formed due to temperature difference when the lens is working.

Description

Technical Field

[0001] The utility model relates to the technical field of lenses, in particular to a heated anti-fog lens. Background Art

[0002] Due to severe weather conditions such as rain, fog, frost, and hot and cold temperature differences, some lenses installed outside the passenger compartment of the car have frosting and icing on their surfaces; and due to the temperature difference of the lens when it is working, it is easy to produce water mist and condensation inside the lens, so that the lens cannot work normally. In the existing patents, the Chinese patent document with application number 202210379381.3 discloses an optical lens and a vehicle, which has a lens group and a lens barrel, the lens group is at least partially assembled in the lens barrel, the lens group includes a first lens and a second lens, the first lens, the second lens and the lens barrel form a cavity, and the optical lens also has a humidity control coating for controlling humidity, and the humidity control coating is partially applied to the cavity. Although this patent document can control the overall humidity of the internal cavity of the camera and solve the fogging problem inside the camera, it cannot solve the problem that the surface of the first lens is prone to frost and ice. Therefore, the defects are very obvious, and it is urgent to provide a solution. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a heated anti-fog lens.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A heated anti-fog lens comprises a lens frame, a lens group, an outer lens, a pressure cap, an outer cover, a moisture control material, a waterproof ring and a heating element. The outer lens and the lens group are sequentially installed in the inner cavity of the lens frame from the outside to the inside. The pressure cap is used to lock the outer lens on the frame. The heating element comprises an electrode wire and a conductive heating element electrically connected to the electrode wire. The outer cover is threadedly sleeved outside the pressure cap. The conductive heating element is clamped between the outer cover and the end face of the frame. The frame is provided with a channel. The electrode wire extends out of the frame through the channel. The outer lens is provided with a light-transmitting area and a non-light-transmitting area. A moisture control space is surrounded by the non-light-transmitting area, the lens frame and the lens group. The moisture control material and the waterproof ring are arranged in the moisture control space from the inside to the outside. The waterproof ring is used to seal the gap between the non-light-transmitting area and the frame.

[0006] Furthermore, the peripheral side of the outer cover is connected to the peripheral side of the mirror frame via a sealant.

[0007] Furthermore, the pressure cover is threadedly connected to the mirror frame.

[0008] Furthermore, a sealant is provided between the gland and the outer cover.

[0009] Furthermore, the lens group includes a plurality of different inner lenses, and the plurality of inner lenses are arranged in a straight line along the inner cavity of the lens frame.

[0010] Furthermore, a spacer ring is arranged between two adjacent inner lenses.

[0011] Furthermore, the conductive heating element is an FPC electric heating film.

[0012] Furthermore, the FPC electric heating film is integrated with a thermistor, and the thermistor is located in the channel.

[0013] Furthermore, the lens set also includes a filter arranged on a side of the lens frame away from the outer lens.

[0014] The beneficial effects of the utility model are as follows: in practical application, in order to solve the problem of frost and ice on the surface of the outer lens in a low temperature environment, the heating element is energized, the conductive heating element heats the frame, and through heat conduction, the outer lens and the lens group on the frame are heated; when the utility model generates water mist between the outer lens and the lens group due to the temperature difference during operation, the humidity control material will control the humidity, that is, it will perform moisture absorption and moisture release functions respectively under the conditions of excessively high humidity and excessively low humidity, so as to ensure the humidity in the humidity control space, and achieve a good anti-fog effect. In addition, the pressure cover locks the outer lens on the frame, and the outer lens is not easy to fall off. The outer lens of the utility model is not easy to fall off, which solves the problem of frost and ice on the surface of the outer lens in a low temperature environment, avoids affecting the normal use of the lens due to ice on the surface of the outer lens, and also solves the problem of water mist formed due to the temperature difference when the lens is working, and ensures the clarity of the lens when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 It is a full view of the utility model.

[0017] Description of reference numerals:

[0018] 1. Frame; 2. Lens assembly; 3. Outer lens; 4. Pressure cap; 5. Outer cover; 6. Moisture control material; 7. Waterproof ring; 8. Heating element; 9. Electrode wire; 10. Conductive heating element; 11. Channel; 12. Light-transmitting area; 13. Non-light-transmitting area; 14. Moisture control space; 15. Sealant; 16. Inner lens; 17. Spacer; 18. Thermistor; 19. Filter. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0020] like Figure 1 and Figure 2 As shown, the utility model provides a heated anti-fog lens, which includes a frame 1, a lens group 2, an outer lens 3, a pressure cap 4, an outer cover 5, a moisture control material 6, a waterproof ring 7 and a heating element 8. The outer lens 3 and the lens group 2 are sequentially installed in the inner cavity of the frame 1 from the outside to the inside. The pressure cap 4 is used to lock the outer lens 3 on the frame 1. The heating element 8 includes an electrode line 9 and a conductive heating element 10 electrically connected to the electrode line 9. The outer cover 5 is threadedly sleeved on the outside of the pressure cap 4. The conductive heating element 10 is clamped between the outer cover 5 and the end face of the frame 1. The frame 1 is provided with a channel 11. The electrode line 9 extends out of the frame 1 through the channel 11 and is connected to an external system. The outer lens 3 is provided with a light-transmitting area 12 and a non-light-transmitting area 13. The non-light-transmitting area 13, the end face of the frame 1 and the lens group 2 are surrounded by a moisture control space 14. The moisture control material 6 and the waterproof ring 7 are arranged in the moisture control space 14 from the inside to the outside. The waterproof ring 7 is used to seal the gap between the non-light-transmitting area 13 and the frame 1. Specifically, the mirror frame 1 is an integrated structure, and the mirror frame 1 is a metal frame.

[0021] In practical applications, in order to solve the problem of frost and ice on the surface of the outer lens 3 in a low temperature environment, the heating element 8 is energized, and the conductive heating element 10 heats the frame 1, and through heat conduction, the outer lens 3 and the lens group 2 on the frame 1 are heated; when the utility model generates water mist between the outer lens 3 and the lens group 2 due to the temperature difference during operation, the humidity control material 6 will control the humidity, that is, it will absorb and release moisture when the humidity is too high and too low, respectively, to ensure the humidity in the humidity control space 14, and play a good anti-fog effect. In addition, the pressure cover 4 locks the outer lens 3 on the frame 1, and the outer lens 3 is not easy to fall off. The outer lens 3 of the utility model is not easy to fall off, which solves the problem of frost and ice on the surface of the outer lens 3 in a low temperature environment, avoids the normal use of the lens affected by the ice on the surface of the outer lens 3, and solves the problem of water mist formed by the temperature difference when the lens is working, ensuring the clarity of the lens when in use.

[0022] In this embodiment, the peripheral side of the outer cover 5 is connected to the peripheral side of the frame 1 via the sealant 15. This structural design, on the one hand, ensures the firmness of the connection between the outer cover 5 and the frame 1, and on the other hand, has a good sealing and waterproof effect.

[0023] In this embodiment, the gland 4 is threadedly connected to the frame 1, and a sealant 15 is provided between the gland 4 and the outer cover 5. This structural design, on the one hand, ensures that the gland 4 is firmly connected to the frame 1, so that the outer lens 3 is not easy to be separated, and on the other hand, has a good sealing and waterproof effect.

[0024] In this embodiment, the lens group 2 includes a plurality of different inner lenses 16, which are arranged in a straight line along the inner cavity of the frame 1, and a spacer 17 is provided between two adjacent inner lenses 16. The lens group 2 also includes a filter 19 arranged on a side of the frame 1 away from the outer lens 3.

[0025] In this embodiment, the conductive heating element 10 is an FPC electric heating film; the FPC electric heating film is integrated with a thermistor 18, and the thermistor 18 is located in the channel 11; the thermistor 18 plays a good role in temperature control.

[0026] All technical features in this embodiment can be freely combined according to actual needs.

[0027] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A heated anti-fog lens, characterized in that: The invention comprises a spectacles frame (1), a lens group (2), an outer lens (3), a pressure cover (4), an outer cover (5), a moisture control material (6), a waterproof ring (7) and a heating element (8). The outer lens (3) and the lens group (2) are sequentially installed in the inner cavity of the spectacles frame (1) from the outside to the inside. The pressure cover (4) is used to lock the outer lens (3) on the spectacles frame (1). The heating element (8) comprises an electrode wire (9) and a conductive heating element (10) electrically connected to the electrode wire (9). The outer cover (5) is threadedly sleeved on the outside of the pressure cover (4). The conductive heating element (10) is clamped The lens assembly (2) is provided between the outer cover (5) and the end surface of the lens frame (1), the lens frame (1) is provided with a channel (11), the electrode wire (9) extends out of the lens frame (1) through the channel (11), the outer lens (3) is provided with a light-transmitting area (12) and a non-light-transmitting area (13), the non-light-transmitting area (13), the lens frame (1) and the lens group (2) are surrounded by a moisture control space (14), the moisture control material (6) and the waterproof ring (7) are arranged in the moisture control space (14) from the inside to the outside, and the waterproof ring (7) is used to seal the gap between the non-light-transmitting area (13) and the lens frame (1).

2. The heated anti-fog lens according to claim 1, characterized in that: The peripheral side of the outer cover (5) is connected to the peripheral side of the mirror frame (1) via a sealant (15).

3. The heated anti-fog lens according to claim 1, characterized in that: The pressure cover (4) is threadedly connected to the mirror frame (1).

4. The heated anti-fog lens according to claim 3, characterized in that: A sealant (15) is provided between the pressure cover (4) and the outer cover (5).

5. The heated anti-fog lens according to claim 1, characterized in that: The lens group (2) comprises a plurality of different inner lenses (16), and the plurality of inner lenses (16) are arranged in a straight line along the inner cavity of the lens frame (1).

6. The heated anti-fog lens according to claim 5, characterized in that: A spacer (17) is arranged between two adjacent inner lenses (16).

7. The heated anti-fog lens according to claim 1, characterized in that: The conductive heating element (10) is an FPC electric heating film.

8. The heated anti-fog lens according to claim 7, characterized in that: The FPC electric heating film is integrated with a thermistor (18), and the thermistor (18) is located in the channel (11).

9. The heated anti-fog lens according to claim 5, characterized in that: The lens set (2) also includes a filter (19) arranged on a side of the lens frame (1) away from the outer lens (3).

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