Lens device

Abstract

The utility model discloses a lens device, which comprises a shell, a light-transmitting cover, an image acquisition module and a heating structure, the housing includes an opening. The light-transmitting cover corresponds to the opening, and the light-transmitting cover and the shell jointly form a containing space. The image acquisition module is arranged in the shell. The image acquisition module comprises a lens, and the lens is located in the containing space and faces the light-transmitting cover. The heating structure is arranged on the shell or the light-transmitting cover. The heating structure comprises a heating piece which is located in the containing space.

Description

Technical Field

[0001] The utility model relates to a lens device. Background Art

[0002] Generally speaking, many electronic products (such as cameras, dash cams, mobile phones, computers, or monitoring devices, etc.) are equipped with lens devices to obtain images outside the electronic products. Among them, many electronic products with lens devices are applied in outdoor spaces. To meet the waterproof requirement, a light-transmitting cover is added outside the lens. That is to say, the lens device includes a housing, a light-transmitting cover, and an image acquisition module, and the image acquisition module is arranged in the accommodation space formed by the housing and the light-transmitting cover. The structures of the housing and the light-transmitting cover can prevent external water vapor from entering the accommodation space.

[0003] However, after the lens device operates, if the external air temperature drops sharply, when the original relatively warm and humid air inside contacts the relatively low-temperature light-transmitting cover, the gaseous water molecules will still condense into liquid water molecules due to the temperature drop reaching the dew point temperature and exist inside the light-transmitting cover. Therefore, condensation water will still be generated in the accommodation space of the lens device and accumulate on the light-transmitting cover, which will cause problems such as image distortion, blurring, or resolution reduction in the images obtained by the lens device, and there is a need for improvement. Summary of the Utility Model

[0004] In view of the above problems, the main purpose of the utility model is to provide a lens device, through the design of a heating structure, to solve the problem that water vapor still condenses inside the known lens device when the temperature changes drastically.

[0005] To achieve the above purpose, the utility model provides a lens device, which includes a housing, a light-transmitting cover, an image acquisition module, and a heating structure. The housing includes an opening. The light-transmitting cover corresponds to the opening and jointly forms an accommodation space with the housing. The image acquisition module is arranged inside the housing. The image acquisition module includes a lens, which is located in the accommodation space and faces the light-transmitting cover. The heating structure is arranged on the housing or the light-transmitting cover. The heating structure includes a heating sheet, which is located in the accommodation space.

[0006] According to an embodiment of the utility model, the housing includes an outer housing and an inner housing. The inner housing is arranged inside the outer housing. The opening is located on the outer housing, and the light-transmitting cover is arranged on the opening. The image acquisition module is arranged inside the inner housing. The outer housing, the inner housing, and the light-transmitting cover jointly form an accommodation space.

[0007] According to an embodiment of the utility model, the heating sheet is arranged on the top surface of the inner housing facing the light-transmitting cover and is located around the lens.

[0008] According to an embodiment of the utility model, the heating structure further includes a heat conducting member, which is arranged on the surface of the heating sheet.

[0009] According to an embodiment of the present utility model, the heating sheet is in an annular sheet structure.

[0010] According to an embodiment of the present utility model, the heating sheet is disposed on the inner surface of the light-transmitting cover. The heating sheet includes a first upright portion and a first extending portion. One end of the first extending portion is connected to the first upright portion, and the other end extends towards the lens, such that the first extending portion is located around the outer periphery of the lens.

[0011] According to an embodiment of the present utility model, the heating structure further includes a heat-conducting bracket. The heating sheet is disposed on the outer surface of the heat-conducting bracket.

[0012] According to an embodiment of the present utility model, the heating sheet includes a first upright portion and a first extending portion connected to each other. The heat-conducting bracket includes a second upright portion and a second extending portion connected to each other. The first upright portion and the first extending portion are respectively disposed on the outer surface of the second upright portion and the outer surface of the second extending portion. The first extending portion and the second extending portion extend towards the lens, such that the first extending portion and the second extending portion are located around the outer periphery of the lens.

[0013] According to an embodiment of the present utility model, the heat-conducting bracket further includes at least one connecting portion. The connecting portion extends downward from the second upright portion.

[0014] According to an embodiment of the present utility model, the image acquisition module further includes a circuit board. The heat-conducting bracket further includes a connecting member. One end of the connecting member is connected to the second extending portion, and the other end extends downward to contact the circuit board.

[0015] According to an embodiment of the present utility model, the heating structure further includes a heat-conducting bracket, which includes a hollow portion. The heat-conducting bracket is disposed at the opening of the housing, and the hollow portion communicates with the opening and corresponds to the lens. The light-transmitting cover is disposed on the heat-conducting bracket and shields the hollow portion. The housing, the light-transmitting cover, and the heat-conducting bracket together form an accommodation space. The heating sheet is disposed on the inner sidewall of the heat-conducting bracket.

[0016] According to an embodiment of the present utility model, the heat-conducting bracket includes a first cylindrical portion and a second cylindrical portion connected to each other. The outer diameter of the first cylindrical portion is smaller than the outer diameter of the second cylindrical portion. The first cylindrical portion is disposed within the opening of the housing. The light-transmitting cover is disposed on the side of the second cylindrical portion away from the first cylindrical portion.

[0017] According to an embodiment of the present utility model, the heating sheet is disposed on the first cylindrical portion.

[0018] According to an embodiment of the present utility model, the image acquisition module further includes a circuit board, which is located within the housing, and the heating sheet is electrically connected to the circuit board.

[0019] As described above, according to the lens device of the present utility model, it includes a housing, a light-transmitting cover, an image acquisition module, and a heating structure. The light-transmitting cover corresponds to the opening of the housing and together with the housing forms an accommodation space. The lens of the image acquisition module is located in the accommodation space and faces the light-transmitting cover. The heating structure is disposed on the housing or the light-transmitting cover. Further, the heating structure includes a heating sheet, which is located in the accommodation space. The heating sheet can provide heat energy and increase the temperature of the accommodation space and the light-transmitting cover, thereby removing the condensed water or fog in the light-transmitting cover, the lens, and the accommodation space, and avoiding problems such as distortion and blurring of the image obtained by the lens device or a reduction in resolution. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 FIG. is a schematic diagram of the lens device according to the first embodiment of the present utility model.

[0021] Figure 2 is Figure 1 an exploded schematic diagram of the lens device shown in FIG.

[0022] Figure 3 is Figure 1 a sectional view of the lens device shown in FIG.

[0023] Figure 4 FIG. is a schematic diagram of the lens device according to the second embodiment of the present utility model.

[0024] Figure 5 is Figure 4 an exploded schematic diagram of the lens device shown in FIG.

[0025] Figure 6 is Figure 4 a sectional view of the lens device shown in FIG.

[0026] Figure 7 FIG. is a schematic diagram of the lens device according to the third embodiment of the present utility model.

[0027] Figure 8 is Figure 7 an exploded schematic diagram of the lens device shown in FIG.

[0028] Figure 9 is Figure 7 a sectional view of the lens device shown in FIG.

[0029] Figure 10 FIG. is a schematic diagram of the lens device according to the fourth embodiment of the present utility model. Figure 11 is Figure 10 an exploded schematic diagram of the lens device shown in FIG.

[0030] Figure 12 is Figure 10 a sectional view of the lens device shown in FIG.

[0031] Figure 13Schematic diagram of the lens device according to the fifth embodiment of the present utility model. Figure 14 is Figure 13 exploded schematic diagram of the lens device shown.

[0032] Figure 15 is Figure 13 cross-sectional view of the lens device shown.

[0033] Figure 16 Schematic diagram of the lens device according to the sixth embodiment of the present utility model. Figure 17 is Figure 16 exploded schematic diagram of the lens device shown.

[0034] Figure 18 is Figure 16 schematic diagram of the heating structure shown.

[0035] Figure 19 is Figure 16 cross-sectional view of the lens device shown.

[0036] Explanation of reference numerals:

[0037] Lens devices 1, 1a, 1b, 1c, 1d, 1e

[0038] Housings 10, 10a, 10e

[0039] Openings 11, 11e

[0040] Outer housing 12

[0041] Inner housings 13, 13a

[0042] Opening 131

[0043] Top surfaces 132, 132a

[0044] Receiving grooves 133a

[0045] Side walls 134

[0046] Bases 135

[0047] Light-transmitting covers 20, 20e

[0048] Inner surfaces 21

[0049] Image acquisition modules 30, 30e

[0050] Lenses 31, 31e

[0051] Circuit boards 32, 32e

[0052] Heating structures 40, 40a, 40b, 40c, 40d, 40e

[0053] Heating sheets 41, 41a, 41b, 41c, 41d, 41e

[0054] Electric connection lines 410, 410a, 410b, 410c, 410d, 410e

[0055] First upright portions 411b, 411c, 411d

[0056] First extension portions 412b, 412c, 412d

[0057] Heat conducting member 42a

[0058] Heat conducting brackets 43c, 43d, 43e

[0059] Second upright portions 431c, 431d

[0060] Second extension portions 432c, 432d

[0061] Connection portion 433c

[0062] Connecting member 434d

[0063] First planar portion 4341d

[0064] Third upright portion 4342d

[0065] Second planar portion 4343d

[0066] Hollow portion 435e

[0067] First cylindrical portion 436e

[0068] Second cylindrical portion 437e

[0069] Central axis C

[0070] Accommodating space S Detailed implementation manners

[0071] To better understand the technical content of the present utility model, the following provides preferred specific embodiments for illustration.

[0072] Figure 1 It is a schematic diagram of the lens device according to the first embodiment of the present utility model. Figure 2 It is Figure 1 an exploded schematic diagram of the lens device shown in Figure 3 It is Figure 1 a sectional view of the lens device shown in Figure 1 , Figure 2 and Figure 3As shown. In this embodiment, the lens device 1 includes a housing 10, a light-transmitting cover 20, an image acquisition module 30, and a heating structure 40. Among them, the housing 10 includes an opening 11. After the light-transmitting cover 20 is assembled to the housing 10, it corresponds to the opening 11, and the light-transmitting cover 20 and the housing 10 together form an accommodation space S, as Figure 1 and Figure 3 shown. The image acquisition module 30 is disposed within the housing 10. Also, the image acquisition module 30 includes a lens 31. The lens 31 is located in the accommodation space S and faces the light-transmitting cover 20.

[0073] In this embodiment, the housing 10 includes an outer housing 12 and an inner housing 13. Among them, the inner housing 13 is disposed within the outer housing 12, and the opening 11 is located on the outer housing 12. Therefore, the light-transmitting cover 20 is disposed at the opening 11 located on the outer housing 12, such that the outer housing 12, the inner housing 13, and the light-transmitting cover 20 can together form the accommodation space S. Also, the image acquisition module 30 of this embodiment is disposed within the inner housing 13 of the housing 10. The lens 31 is disposed at the opening 131 of the inner housing 13, such that the lens 31 is located in the accommodation space S and faces the light-transmitting cover 20. As Figure 3 shown, the image acquisition module 30 further includes a circuit board 32, which is located within the housing 10. The circuit board 32 of this embodiment is disposed within the inner housing 13.

[0074] Also, the heating structure 40 can be disposed on the housing 10 or the light-transmitting cover 20, and the heating structure 40 includes a heating sheet 41, which is located within the accommodation space S. In this embodiment, the heating structure 40 is disposed on the housing 10. Among them, the heating sheet 41 can be, for example but not limited to, an electric heating sheet, and is electrically connected to the circuit board 32. Specifically, the heating sheet 41 includes an electrical connection line 410, as Figure 1 and Figure 2 shown. In one embodiment, one end of the electrical connection line 410 is connected to the heating sheet 41, and the other end can enter the inner housing 13 through the opening 131 and be connected to the circuit board 32 (as Figure 3 shown). In another embodiment, the heating structure 40 can further include a flexible circuit board (not shown in the figure), and its opposite ends are respectively connected to the electrical connection line 410 and the circuit board 32. It should be noted that the present invention does not limit the electrical connection manner between the heating sheet 41 and the circuit board 32, and for the sake of simplicity of the drawing, only the electrical connection line 410 is drawn. When the external temperature of the lens device 1 drops, the circuit board 32 can be activated to supply power to the heating sheet 41 to convert it into heat energy, thereby increasing the temperature of the accommodation space S and the light-transmitting cover 20, and further removing the condensed water or fog on the inner surface 21 of the light-transmitting cover 20, the lens 31, and within the accommodation space S.

[0075] Preferably, the heating sheet 41 of this embodiment can be in an annular sheet structure, so that the heating sheet 41 can be directly disposed on the top surface 132 of the inner housing 13 facing the light-transmitting cover 20. Also, the top surface 132 of the inner housing 13 surrounds the opening 131, such that the heating sheet 41 disposed on the top surface 132 is located around the outer periphery of the lens 31, and the heating sheet 41 faces the light-transmitting cover 20. Therefore, the heat energy provided by the heating sheet 41 can be effectively transferred to the lens 31 and the light-transmitting cover 20, so as to improve the efficiency of removing condensed water or fog in the light-transmitting cover 20, the lens 31 and the accommodation space S.

[0076] Figure 4 Schematic diagram of a lens device according to the second embodiment of the present invention Figure 5 is Figure 4 exploded schematic diagram of the shown lens device Figure 6 is Figure 4 cross-sectional view of the shown lens device, please refer to Figure 4 , Figure 5 and Figure 6 shown. In this embodiment, the lens device 1a includes a housing 10a, a light-transmitting cover 20, an image acquisition module 30, and a heating structure 40a. The housing 10a also includes an outer housing 12 and an inner housing 13a. Among them, the structures of the outer housing 12, the light-transmitting cover 20 and the image acquisition module 30 and their connection relationships with other components are the same as those in the first embodiment, so the component symbols are used. In this embodiment, the inner housing 13a further includes an accommodation groove 133a, which is located on the top surface 132a. The heating sheet 41a of this embodiment is also in an annular sheet structure, so that the heating sheet 41a can be disposed in the accommodation groove 133a. Preferably, the heating structure 40a of this embodiment further includes a heat conducting member 42a, which is also in an annular sheet structure and is disposed in the accommodation groove 133a. The heat conducting member 42a is made of a metal material with good heat conductivity. The heat conducting member 42a is disposed on the surface of the heating sheet 41a. Preferably, the heat conducting member 42a is disposed on the upper surface of the heating sheet 41a. Therefore, in the accommodation groove 133a, from top to bottom are the heat conducting member 42a and the heating sheet 41a.

[0077] Similarly, the heating sheet 41a includes an electrical connection line 410a, as Figure 5 and Figure 6 shown. In one embodiment, one end of the electrical connection line 410a can be connected to the heating sheet 41a, and the other end enters the inner housing 13a and is connected to the circuit board 32. For the sake of simplicity of the drawing, Figure 5 and Figure 6Only the electrical connection line 410a is drawn, and its connection to the circuit board 32 is not drawn. Also, the circuit board 32 supplies power to the heating sheet 41a to convert it into heat energy, thereby increasing the temperature of the accommodation space S and the light-transmitting cover 20, and then the condensed water or fog in the light-transmitting cover 20, the lens 31, and the accommodation space S can be removed. Also, the heat conducting member 42a of this embodiment can also conduct the heat energy generated by the heating sheet 41a to other areas, thereby avoiding the situation where the light-transmitting cover 20 is damaged due to overheating of the heating sheet 41a.

[0078] Figure 7 It is a schematic diagram of a lens device according to the third embodiment of the present invention. Figure 8 is Figure 7 an exploded schematic diagram of the lens device shown. Figure 9 is Figure 7 a sectional view of the lens device shown. Please refer to Figure 7 , Figure 8 and Figure 9 shown. In this embodiment, the lens device 1b includes a housing 10, a light-transmitting cover 20, an image acquisition module 30, and a heating structure 40b. The housing 10 also includes an outer housing 12 and an inner housing 13. Among them, the structures of the housing 10, the light-transmitting cover 20, and the image acquisition module 30 and their connection relationships with other components are the same as those in the first embodiment, so their component symbols are used. The difference from the first and second embodiments is that the heating structure 40b of this embodiment is disposed on the light-transmitting cover 20, and the heating sheet 41b has a different structure. Specifically, the heating sheet 41b of this embodiment is a ring-shaped three-dimensional structure. The heating sheet 41b includes a first upright portion 411b and a first extension portion 412b. The lens device 1b has a vertical central axis C, as Figure 9 shown. The first upright portion 411b can be parallel to the central axis C or slightly inclined with respect to the central axis C. Also, one end of the first extension portion 412b is connected to the first upright portion 411b, and the other end is inclined toward the central axis C. The heating sheet 41b of this embodiment is disposed on the inner surface 21 of the light-transmitting cover 20. For example, the heating sheet 41b is adhered to the inner surface 21 of the light-transmitting cover 20. When the heating sheet 41b is disposed on the light-transmitting cover 20, the first upright portion 411b is close to the side wall 134 of the inner housing 13, and the first extension portion 412b extends toward the lens 31, so that the first extension portion 412b is located on the outer periphery of the lens 31.

[0079] Similarly, the heating sheet 41b includes an electrical connection line 410b, as Figure 7 and Figure 8 shown. In this embodiment, the inner housing 13 can form a through hole (not shown in the figure), so that one end of the electrical connection line 410b is connected to the first upright portion 411b of the heating sheet 41b, and the other end enters the inner housing 13 through the through hole and is connected to the circuit board 32. For the sake of simplicity of the drawing, Figure 7 andFigure 8 Only the electrical connection line 410b is drawn, and its connection to the circuit board 32 is not drawn. Also, since the heating sheet 41b is disposed on the inner surface 21 of the light-transmitting cover 20, when the circuit board 32 supplies power to the heating sheet 41b to convert it into heat energy, the condensed water or fog on the inner surface 21 of the light-transmitting cover 20 can be directly removed, thereby improving the defogging effect. In other embodiments, the heating structure 40b may further include a heat-conducting member and be disposed on one of the surfaces of the heating sheet 41b. The heat energy generated by the heating sheet 41b is conducted to other areas through the heat-conducting member, thereby avoiding the situation where the light-transmitting cover 20 is damaged due to overheating of the heating sheet 41b.

[0080] Figure 10 Schematic diagram of the lens device according to the fourth embodiment of the present invention Figure 11 is Figure 10 exploded schematic diagram of the lens device shown Figure 12 is Figure 10 cross-sectional view of the lens device shown, please refer to Figure 10 、 Figure 11 and Figure 12 shown. In this embodiment, the lens device 1c includes a housing 10, a light-transmitting cover 20, an image acquisition module 30, and a heating structure 40c. The housing 10 also includes an outer housing 12 and an inner housing 13. Among them, the structures of the housing 10, the light-transmitting cover 20, and the image acquisition module 30 and their connection relationships with other components are the same as those in the first embodiment, so their component symbols are used. The difference from the foregoing embodiments is that the heating structure 40c in this embodiment further includes a heat-conducting bracket 43c in addition to the heating sheet 41c. Also, the heat-conducting bracket 43c in this embodiment and the heat-conducting member 42a in the foregoing embodiments are both made of a metal material with good heat conductivity, and the difference lies in their structures.

[0081] In this embodiment, the heating sheet 41c also includes an electrical connection line 410c for connecting to the circuit board 32, and a first upright portion 411c and a first extension portion 412c that are connected to each other. The heat-conducting bracket 43c has a corresponding structure, and the heat-conducting bracket 43c includes a second upright portion 431c and a second extension portion 432c that are connected to each other. Specifically, the second upright portion 431c and the second extension portion 432c are annular three-dimensional structures. As Figure 12As shown, the second upright portion 431c can be parallel to the central axis C or slightly inclined relative to the central axis C. Also, one end of the second extension portion 432c is connected to the second upright portion 431c, and the other end is inclined in the direction of the central axis C. Since the heat conducting bracket 43c has a structure corresponding to the heating sheet 41c (i.e., the second upright portion 431c and the second extension portion 432c), the heating sheet 41c can be disposed on the outer surface of the heat conducting bracket 43c, that is, the surface facing the outer housing 12. That is to say, the first upright portion 411c and the first extension portion 412c are respectively disposed on the outer surface of the second upright portion 431c and the outer surface of the second extension portion 432c.

[0082] Also, the second upright portion 431c of the heat conducting bracket 43c is disposed outside the inner housing 13 (i.e., on the side facing the light transmissive cover 20) and is close to the side wall 134 of the inner housing 13. Preferably, the heat conducting bracket 43c further includes at least one connecting portion 433c for connecting to the inner housing 13. The connecting portion 433c extends downward from the second upright portion 431c. For example, the connecting portion 433c is a plate body, and one end thereof is connected to the lower edge of the second upright portion 431c. Also, the connecting portion 433c is connected to the inner housing 13. For example, the connecting portion 433c is parallel to the side wall 134 of the inner housing 13, and the end is inserted into the base 135 of the inner housing 13, thereby disposing the heat conducting bracket 43c on the inner housing 13. In other embodiments, the connecting portion 433c can also be directly adhered to the side wall 134 or the base 135, and the present utility model is not limited thereto.

[0083] When the heat conducting bracket 43c is disposed outside the inner housing 13, the first extension portion 412c and the second extension portion 432c extend in the direction of the lens 31, so that the first extension portion 412c and the second extension portion 432c are located around the outer periphery of the lens 31. Similarly, the circuit board 32 supplies power to the heating sheet 41c to convert it into heat energy, thereby increasing the temperature of the accommodation space S and the light transmissive cover 20, and further removing the condensed water or fog in the light transmissive cover 20, the lens 31, and the accommodation space S. Also, the heat conducting bracket 43c can conduct the heat energy generated by the heating sheet 41c to other areas to avoid the overheating of the heating sheet 41c.

[0084] Figure 13 It is a schematic diagram of a lens device according to the fifth embodiment of the present utility model. Figure 14 is Figure 13 an exploded schematic diagram of the lens device shown. Figure 15 is Figure 13 a sectional view of the lens device shown. Please refer to Figure 13 , Figure 14 and Figure 15As shown. In this embodiment, the lens device 1d includes a housing 10, a light-transmitting cover 20, an image acquisition module 30, and a heating structure 40d. The housing 10 also includes an outer housing 12 and an inner housing 13. Among them, the structures of the housing 10, the light-transmitting cover 20, and the image acquisition module 30 and their connection relationships with other components are the same as those in the first embodiment, so the component symbols are used. The heating structure 40d in this embodiment is similar to the heating structure 40c in the fourth embodiment, and it also includes a heating sheet 41d and a heat conduction bracket 43d. Also, the heating sheet 41d also includes an electrical connection line 410d for electrically connecting to the circuit board 32, and a first upright portion 411d and a first extension portion 412d that are connected to each other. Correspondingly, the heat conduction bracket 43d includes a second upright portion 431d and a second extension portion 432d that are connected to each other. The heat conduction bracket 43d in this embodiment further includes a connecting member 434d, and its structure is different from that of the connecting portion 433c in the fourth embodiment.

[0085] One end of the connecting member 434d in this embodiment is connected to the second extension portion 432d, and the other end extends into the inner housing 13 and downward to contact the circuit board 32. Specifically, the connecting member 434d in this embodiment includes a first planar portion 4341d, a third upright portion 4342d, and a second planar portion 4343d. The third upright portion 4342d is located between the first planar portion 4341d and the second planar portion 4343d. Preferably, the third upright portion 4342d is perpendicular to the first planar portion 4341d and the second planar portion 4343d. Also, one end of the first planar portion 4341d is connected to the second extension portion 432d, and the first planar portion 4341d extends in the direction of the lens 31 from the first planar portion 4341d. One end of the third upright portion 4342d is connected to the first planar portion 4341d, and the other end is connected to the second planar portion 4343d and extends downward (i.e., in the direction of the circuit board 32), so that the second planar portion 4343d can contact the circuit board 32, as Figure 15 shown.

[0086] Similarly, the circuit board 32 supplies power to the heating sheet 41d to convert it into heat energy, thereby increasing the temperature of the accommodation space S and the light-transmitting cover 20 to remove the condensed water or fog in the accommodation space S. Also, the heat conduction bracket 43d can conduct the heat energy generated by the heating sheet 41d to the circuit board 32, for example, it can provide preheating heat for the temperature sensor (not shown) of the circuit board 32.

[0087] Figure 16 It is a schematic diagram of the lens device according to the sixth embodiment of the present invention. Figure 17 is Figure 16 an exploded schematic diagram of the lens device shown. Figure 18 is Figure 16 a schematic diagram of the heating structure shown. Figure 19 is Figure 16For a sectional view of the lens device shown, please refer to Figure 16 , Figure 17 , Figure 18 and Figure 19 as shown. In this embodiment, the lens device 1e includes a housing 10e, a light-transmitting cover 20e, an image acquisition module 30e, and a heating structure 40e. In this embodiment, the housing 10e directly serves as the outer housing and has an opening 11e. The image acquisition module 30e is disposed within the housing 10e. Also, the heating structure 40e of this embodiment is disposed on the housing 10e and at the opening 11e. Specifically, the heating structure 40e of this embodiment includes a heating sheet 41e and a heat-conducting bracket 43e. Among them, the heat-conducting bracket 43e includes a hollow portion 435e. The heat-conducting bracket 43e is disposed at the opening 11e of the housing 10e, and the hollow portion 435e communicates with the opening 11e and corresponds to the lens 31e.

[0088] In this embodiment, the heat-conducting bracket 43e further includes a first cylindrical portion 436e and a second cylindrical portion 437e that are connected to each other, and the hollow portion 435e penetrates through the first cylindrical portion 436e and the second cylindrical portion 437e. The outer diameter of the first cylindrical portion 436e is smaller than the outer diameter of the second cylindrical portion 437e. The first cylindrical portion 436e is disposed within the opening 11e of the housing 10e. For example, the inner wall of the opening 11e has an internal thread, and the outer sidewall of the first cylindrical portion 436e correspondingly has an external thread, so that the first cylindrical portion 436e can be locked into the opening 11e, thereby disposing the heat-conducting bracket 43e on the housing 10e. Also, the light-transmitting cover 20e is disposed on the heat-conducting bracket 43e and is located on the side of the second cylindrical portion 437e away from the first cylindrical portion 436e. When the light-transmitting cover 20e is disposed on the heat-conducting bracket 43e, the light-transmitting cover 20e corresponds to the opening 11e and simultaneously shields the hollow portion 435e, so that the housing 10e, the light-transmitting cover 20e, and the heat-conducting bracket 43e jointly form a receiving space S.

[0089] In this embodiment, the image acquisition module 30e is disposed within the housing 10e, and the lens 31e is located within the hollow portion 435e, such that the lens 31e is located within the receiving space S and faces the light-transmitting cover 20e. Also, the heating sheet 41e of the heating structure 40e is disposed on the inner sidewall of the heat-conducting bracket 43e, for example, on the inner sidewall of the first cylindrical portion 436e, such that the heating sheet 41e is located within the receiving space. Similarly, the heating sheet 41e includes an electrical connection line 410e, as Figure 17 and Figure 18 shown. In this embodiment, one end of the electrical connection line 410e can be connected to the heating sheet 41e, and the other end enters the housing 10e and is connected to the circuit board 32e. For the sake of simplicity of the drawing, Figure 17 and Figure 18Only the electrical connection line 410e is drawn, and its connection to the circuit board 32 is not drawn. The circuit board 32e can supply power to the heating sheet 41e to convert it into heat energy, thereby increasing the temperature of the accommodation space S and the light-transmitting cover 20e, and then the condensed water or fog in the light-transmitting cover 20e, the lens 31e, and the accommodation space S can be removed. Also, the heat-conducting bracket 43e can conduct the heat energy generated by the heating sheet 41e to other areas to avoid the overheating of the heating sheet 41e.

[0090] In summary, according to the lens device of the present invention, it includes a housing, a light-transmitting cover, an image acquisition module, and a heating structure. The light-transmitting cover corresponds to the opening of the housing and forms an accommodation space together with the housing. The lens of the image acquisition module is located in the accommodation space and faces the light-transmitting cover. The heating structure is arranged on the housing or the light-transmitting cover. Also, the heating structure includes a heating sheet, which is located in the accommodation space. The heating sheet can provide heat energy and increase the temperature of the accommodation space and the light-transmitting cover, and then the condensed water or fog in the light-transmitting cover, the lens, and the accommodation space can be removed, and problems such as distortion, blurring, or reduction in resolution of the image obtained by the lens device can be avoided.

[0091] It should be noted that the above-mentioned many embodiments are examples for the convenience of description. The scope of the rights claimed by the present invention should be subject to what is described in the claims, rather than being limited to the above embodiments.

Claims

1. A lens device, characterized in that: include: a housing including an opening; A light-transmitting cover, corresponding to the opening, and forming a receiving space together with the housing; An image acquisition module is disposed in the housing, and includes a lens, which is located in the accommodating space and faces the light-transmitting cover; as well as The heating structure is arranged on the housing or the light-transmitting cover, and the heating structure comprises a heating plate, which is located in the accommodating space.

2. The lens device according to claim 1, wherein: The shell comprises an outer shell and an inner shell. The inner shell is arranged in the outer shell. The opening is located in the outer shell. The light-transmitting cover is arranged in the opening. The image acquisition module is arranged in the inner shell. The outer shell, the inner shell and the light-transmitting cover together form the accommodation space.

3. The lens device according to claim 2, characterized in that: The heating plate is arranged on the top surface of the inner shell body facing the light-transmitting cover and is located at the outer periphery of the lens.

4. The lens device according to claim 1, wherein: The heating structure also includes a heat conducting member which is arranged on the surface of the heating plate.

5. The lens device according to claim 1, wherein: The heating plate is an annular plate structure.

6. The lens device according to claim 1, wherein: The heating plate is arranged on the inner surface of the light-transmitting cover and comprises a first upright portion and a first extending portion. One end of the first extending portion is connected to the first upright portion and the other end extends toward the direction of the lens so that the first extending portion is located outside the lens.

7. The lens device according to claim 1, wherein: The heating structure also includes a heat-conducting bracket, and the heating plate is arranged on the outer surface of the heat-conducting bracket.

8. The lens device according to claim 7, characterized in that: The heating plate includes a first upright portion and a first extension portion connected to each other, and the heat-conducting bracket includes a second upright portion and a second extension portion connected to each other. The first upright portion and the first extension portion are respectively arranged on the outer surface of the second upright portion and the outer surface of the second extension portion. The first extension portion and the second extension portion extend toward the direction of the lens so that the first extension portion and the second extension portion are located at the outer periphery of the lens.

9. The lens device according to claim 8, characterized in that: The heat-conducting bracket also includes at least one connecting portion extending downward from the second upright portion.

10. The lens device according to claim 8, wherein: The image acquisition module further includes a circuit board, and the heat-conducting bracket further includes a connecting member, one end of which is connected to the second extending portion, and the other end of which extends downward to contact the circuit board.

11. The lens device according to claim 1, wherein: The heating structure also includes a heat-conducting bracket, which includes a hollow portion. The heat-conducting bracket is arranged at the opening of the shell, and the hollow portion is connected to the opening and corresponds to the lens. The light-transmitting cover is arranged on the heat-conducting bracket and shields the hollow portion. The shell, the light-transmitting cover and the heat-conducting bracket jointly form the accommodating space. The heating plate is arranged on the inner side wall of the heat-conducting bracket.

12. The lens device according to claim 11, wherein: The heat-conducting bracket includes a first tube part and a second tube part connected to each other. The outer diameter of the first tube part is smaller than the outer diameter of the second tube part. The first tube part is arranged in the opening of the shell, and the light-transmitting cover is arranged on a side of the second tube part away from the first tube part.

13. The lens device according to claim 12, wherein: The heating plate is arranged on the first cylinder portion.

14. The lens device according to claim 1, wherein: The image acquisition module further comprises a circuit board which is located in the housing, and the heating plate is electrically connected to the circuit board.

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