Image extraction device

Abstract

An image extraction device comprises a device shell, a lens, a vibration unit and a temperature modulation unit. The lens is arranged on the device shell. The vibration unit is suitable for applying vibration to the lens. The temperature modulation unit is suitable for modulating the temperature of the lens.

Description

Technical Field

[0001] The embodiments of this utility model relate to an image extraction device, and more particularly to an image extraction device with temperature modulation function. Background Technology

[0002] Commonly known image extraction devices, such as dashcams, typically include components such as a protective lens, a housing, an imaging lens, and an image extraction module (photocoupler). The protective lens is generally in contact with the outside air. When the temperature and humidity of the external environment deteriorate, water droplets or frost may condense on the protective lens, affecting the image extraction performance of the device and even endangering driving safety. Utility Model Content

[0003] The purpose of this invention is to provide an image extraction device to solve at least one of the above-mentioned problems.

[0004] This utility model provides an image extraction device to address problems in the prior art, comprising a device housing, a lens, a vibration unit, and a temperature modulation unit. The lens is disposed within the device housing. The vibration unit is adapted to apply vibration to the lens. The temperature modulation unit is adapted to modulate the temperature of the lens.

[0005] According to one embodiment of the present invention, the lens includes a first surface and a second surface, the first surface being opposite to the second surface, and the vibration unit being connected to the second surface directly or indirectly to be adapted to apply vibration to the lens.

[0006] According to one embodiment of the present invention, the temperature modulation unit is a cooling unit, which includes a hot end and a cold end. The hot end is thermally connected to the lens to modulate the temperature of the lens.

[0007] According to one embodiment of the present invention, the vibration unit is directly connected to the second surface, the temperature modulation unit is directly connected to the first surface, and both the vibration unit and the temperature modulation unit are located outside an imaging area of ​​the lens.

[0008] According to one embodiment of the present invention, the vibration unit corresponds to the temperature modulation unit, and at least a portion of the lens is sandwiched between the vibration unit and the temperature modulation unit.

[0009] According to one embodiment of the present invention, the temperature modulation unit is directly connected to the second surface, the vibration unit is stacked on the temperature modulation unit, and the vibration generated by the vibration unit is transmitted to the lens through the temperature modulation unit.

[0010] According to one embodiment of the present invention, the cold end of the temperature modulation unit is connected to the vibration unit to perform temperature modulation on the vibration unit.

[0011] According to one embodiment of the present invention, the vibration unit is directly connected to the second surface, the temperature modulation unit is directly connected to the second surface, and both the vibration unit and the temperature modulation unit are located outside an imaging area of ​​the lens.

[0012] According to one embodiment of the present invention, it further includes an image extraction module and a heat conduction module, wherein the heat conduction module is thermally connected to the cold end of the temperature modulation unit and the image extraction module.

[0013] According to one embodiment of the present invention, the temperature modulation unit is disposed on the device housing, the device housing is directly or indirectly connected to at least part of the first surface, and the heat generated by the temperature modulation unit is transferred to the lens through the device housing.

[0014] According to one embodiment of the present invention, a thermally conductive material is further included, which is disposed on the housing of the device and directly connected to at least a portion of the first surface. The thermally conductive material is thermally connected to the temperature modulation unit and the lens.

[0015] According to one embodiment of the present invention, it further includes an image extraction module and a heat conduction module. The lens also includes a side surface, and the hot end of the temperature modulation unit is directly connected to the side surface to perform temperature modulation on the lens. The heat conduction module is thermally connected to the cold end of the temperature modulation unit, the vibration unit, and the image extraction module.

[0016] According to one embodiment of the present invention, the temperature modulation unit is a heating wire unit, and the temperature modulation unit is disposed outside an imaging area of ​​the lens.

[0017] According to one embodiment of the present invention, the lens further includes a side surface, and the temperature modulation unit is disposed on the first surface or the side surface.

[0018] According to one embodiment of the present invention, the temperature modulation unit is a heating wire unit, and the temperature modulation unit is disposed within an imaging area of ​​the lens.

[0019] According to one embodiment of the present invention, the temperature modulation unit is disposed on the first surface of the lens.

[0020] According to one embodiment of the present invention, the temperature modulation unit includes multiple heating wires, each heating wire having a wire width of less than 1.5 mm.

[0021] According to one embodiment of the present invention, at least some of the multiple heating wires are arranged in a parallel manner, and the distance between two adjacent heating wires is greater than 1.5 mm.

[0022] According to one embodiment of the present invention, it further includes an image extraction module, wherein the viewing angle of the image extraction device is greater than 60 degrees × 60 degrees.

[0023] According to one embodiment of the present invention, the vibration unit is a piezoelectric vibration unit.

[0024] The image extraction device of this embodiment uses a vibration unit to apply vibration to the lens and a temperature modulation unit to modulate the temperature of the lens. Therefore, when water droplets, fog, or frost form on the lens surface, the temperature modulation unit can eliminate the fog and frost, and the vibration unit can vibrate away the water droplets. Compared with prior art, the image extraction device of this embodiment can be applied to various harsh climatic environments, improving driving safety. Attached Figure Description

[0025] Figure 1A This is a perspective view of the image extraction device according to the first embodiment of the present invention.

[0026] Figure 1B This is an exploded view of the image extraction device according to the first embodiment of this utility model.

[0027] Figure 1C This is a partial cross-sectional schematic diagram of the image extraction device according to the first embodiment of the present invention.

[0028] Figure 2 This is a partial cross-sectional schematic diagram of the image extraction device according to the second embodiment of the present invention.

[0029] Figure 3 This is a partial cross-sectional schematic diagram of the image extraction device according to the third embodiment of the present invention.

[0030] Figure 4 This is a partial cross-sectional schematic diagram of the image extraction device according to the fourth embodiment of the present invention.

[0031] Figure 5 This is a partial cross-sectional schematic diagram of the image extraction device according to the fifth embodiment of this utility model.

[0032] Figure 6 This is a partial cross-sectional schematic diagram of the image extraction device according to the sixth embodiment of this utility model.

[0033] Figure 7 This is a partial cross-sectional schematic diagram of the image extraction device according to the seventh embodiment of the present invention.

[0034] Figure 8 This is a partial cross-sectional schematic diagram of the image extraction device according to the eighth embodiment of the present invention.

[0035] The attached figures are labeled as follows:

[0036] D: Image extraction device

[0037] 1: Lens

[0038] 11: First Surface

[0039] 12: Second Surface

[0040] 13: Side view

[0041] 19: Imaging area

[0042] 2: Vibration Unit

[0043] 31: Temperature Modulation Unit

[0044] 311: Hot end

[0045] 312: Cold End

[0046] 32: Temperature modulation unit

[0047] 33: Temperature Modulation Unit

[0048] 331: Heating wire

[0049] 4: Device housing

[0050] 41: Shell Body

[0051] 42: Outer cover

[0052] 43: Back cover

[0053] 51: Thermal Conductive Module

[0054] 52: Thermal conductive materials

[0055] 6: Image Extraction Module Detailed Implementation

[0056] Figure 1A This is a perspective view of the image extraction device according to the first embodiment of the present invention. Figure 1B This is an exploded view of the image extraction device according to the first embodiment of this utility model. Figure 1CThis is a partial cross-sectional schematic diagram of the image extraction device according to the first embodiment of the present invention. Referring to Figures 1A, 1B, and 1C, the image extraction device D of this embodiment includes a device housing 4, a lens 1, a vibration unit 2, and a temperature modulation unit 31. The lens 1 is disposed on the device housing 4. The vibration unit 2 is adapted to apply vibration to the lens 1. The temperature modulation unit 31 is adapted to modulate the temperature of the lens 1.

[0057] Reference Figure 1B In one embodiment, the device housing 4 includes a housing body 41, an outer cover 42, and a back cover 43. The above disclosure does not limit the present invention.

[0058] Reference Figure 1C In one embodiment, the lens 1 includes a first surface 11 and a second surface 12, the first surface 11 being opposite to the second surface 12, and the vibration unit 2 being connected to the second surface 12 directly or indirectly to be adapted to apply vibration to the lens 1.

[0059] Reference Figure 1C In one embodiment, the temperature modulation unit 31 is a cooling unit, which includes a hot end 311 and a cold end 312. The hot end 311 is thermally connected to the lens 1 to modulate the temperature of the lens 1. Specifically, when the surface of the lens 1 is frosted or fogged, the temperature modulation unit 31 heats the lens 1 to perform functions such as defrosting or defogging.

[0060] Reference Figure 1C In one embodiment, the vibration unit 2 is directly connected to the second surface 12, and the temperature modulation unit 31 is directly connected to the first surface 11. Both the vibration unit 2 and the temperature modulation unit 31 are located outside an imaging area 19 of the lens 1. The vibration unit 2 is adapted to remove water droplets by vibration.

[0061] In one embodiment, the lens 1 is a protective lens, with the first surface 11 in contact with the external environment and the second surface 12 facing the interior of the image extraction device D. The above disclosure does not limit the present invention. For example, in another embodiment, the lens 1 may also be an imaging lens.

[0062] Reference Figure 1C In one embodiment, the vibration unit 2 corresponds to the temperature modulation unit 31, and at least a portion of the lens 1 is sandwiched between the vibration unit 2 and the temperature modulation unit 31.

[0063] Figure 2 This is a partial cross-sectional schematic diagram of the image extraction device according to the second embodiment of this utility model. (Refer to...) Figure 2In this embodiment, the temperature modulation unit 31 is directly connected to the second surface 12, and the vibration unit 2 is stacked on the temperature modulation unit 31. The vibration generated by the vibration unit 2 is transmitted to the lens 1 through the temperature modulation unit 31.

[0064] Reference Figure 2 In this embodiment, the hot end 311 of the temperature modulation unit 31 is thermally connected to the lens 1 to modulate the temperature of the lens 1. The cold end 312 of the temperature modulation unit 31 is connected to the vibration unit 2 to modulate the temperature of the vibration unit 2. Specifically, when the surface of the lens 1 is frosted or fogged, the temperature modulation unit 31 heats the lens 1 to perform functions such as defrosting or defogging. In addition, the temperature modulation unit 31 also provides cooling for the vibration unit 2 to prevent the vibration unit 2 from overheating due to prolonged operation and to extend the service life of the vibration unit 2.

[0065] Figure 3 This is a partial cross-sectional schematic diagram of the image extraction device according to the third embodiment of this utility model. (Refer to...) Figure 3 In this embodiment, the vibration unit 2 is directly connected to the second surface 12, and the temperature modulation unit 31 is also directly connected to the second surface 12. Both the vibration unit 2 and the temperature modulation unit 31 are located outside an imaging area 19 of the lens 1. In this embodiment, the temperature modulation unit 31 is arranged around the vibration unit 2. The above disclosure does not limit the present invention. For example, in another embodiment, the vibration unit 2 may also be arranged around the temperature modulation unit 31.

[0066] Reference Figure 3 In this embodiment, the image extraction device further includes an image extraction module 6 (e.g., a photosensitive coupling element) and a heat-conducting module 51. The hot end 311 of the temperature modulation unit 31 is thermally connected to the lens 1 to perform temperature modulation on the lens 1. The heat-conducting module 51 is thermally connected to the cold end 312 of the temperature modulation unit 31 and the image extraction module 6. Specifically, when the surface of the lens 1 is frosted or fogged, the temperature modulation unit 31 heats the lens 1 to perform functions such as defrosting or defogging. In addition, the temperature modulation unit 31 also provides cooling for the image extraction module 6 to prevent the image extraction module 6 from overheating due to prolonged operation and to extend the service life of the image extraction module. The above disclosure does not limit the present invention. For example, in another embodiment, the heat-conducting module 51 can thermally connect the cold end 312 of the temperature modulation unit 31 to other heat sources (e.g., a wafer) to provide a cooling effect to the heat source (e.g., the wafer).

[0067] Figure 4 This is a partial cross-sectional schematic diagram of the image extraction device according to the fourth embodiment of this utility model. (Refer to...) Figure 4 In this embodiment, the temperature modulation unit 31 is disposed on the device housing 4, and the device housing 4 is directly or indirectly connected to at least part of the first surface 11. The heat generated by the temperature modulation unit 31 is transferred to the lens 1 through the device housing 4.

[0068] Reference Figure 4 In one embodiment, the image extraction device further includes a heat-conducting material 52, which is disposed on the device housing 4 and directly connected to at least a portion of the first surface 11. The heat-conducting material 52 is thermally connected to the temperature modulation unit 31 and the lens 1. Thus, when the surface of the lens 1 is frosted or fogged, the temperature modulation unit 31 heats the lens 1 to perform functions such as defrosting or defogging.

[0069] Figure 5 This is a partial cross-sectional schematic diagram of the image extraction device according to the fifth embodiment of this utility model. (Refer to...) Figure 5 In this embodiment, the lens 1 further includes a side surface 13, and the hot end 311 of the temperature modulation unit 31 is directly connected to the side surface 13 to perform temperature modulation on the lens 1. Thus, when frost or fog forms on the surface of the lens 1, the temperature modulation unit 31 heats the lens 1 to perform functions such as defrosting or defogging. In this embodiment, the temperature modulation unit 31 can surround the edge of the lens 1, and the above disclosure does not limit the present invention.

[0070] Reference Figure 5 In this embodiment, the image extraction device further includes an image extraction module 6 (e.g., a photosensitive coupling element) and a heat-conducting module 51. The hot end 311 of the temperature modulation unit 31 is thermally connected to the lens 1 to modulate the temperature of the lens 1. The heat-conducting module 51 is thermally connected to the cold end 312 of the temperature modulation unit 31, the image extraction module 6, and the vibration unit 2. Specifically, when the surface of the lens 1 is frosted or fogged, the temperature modulation unit 31 heats the lens 1 to perform functions such as defrosting or defogging. In addition, the temperature modulation unit 31 also provides cooling for the vibration unit 2 and the image extraction module 6, preventing them from overheating due to prolonged operation and extending their service life.

[0071] Figure 6 This is a partial cross-sectional schematic diagram of the image extraction device according to the sixth embodiment of this utility model. (Refer to...) Figure 6In this embodiment, the temperature modulation unit 32 is a heating wire unit, which is disposed outside an imaging area 19 of the lens 1. The temperature modulation unit 32 is disposed on the first surface 11. The heating wire unit can provide heat energy, so that when the surface of the lens 1 is frosted or fogged, the temperature modulation unit 32 heats the lens 1 to perform functions such as defrosting or defogging.

[0072] Figure 7 This is a partial cross-sectional schematic diagram of the image extraction device according to the seventh embodiment of this utility model. (Refer to...) Figure 7 In this embodiment, the lens 1 also includes a side surface 13, and the temperature modulation unit 32 is disposed on the side surface 13. Thus, when the surface of the lens 1 is frosted or fogged, the temperature modulation unit 32 heats the lens 1 to perform functions such as defrosting or defogging.

[0073] Figure 8 This is a partial cross-sectional schematic diagram of the image extraction device according to the eighth embodiment of this utility model. (Refer to...) Figure 8 In this embodiment, the temperature modulation unit 33 is a heating wire unit, and the temperature modulation unit 33 is disposed within an imaging area 19 of the lens 1. The temperature modulation unit 33 is disposed on the first surface 11 of the lens 1. Thus, when the surface of the lens 1 is frosted or fogged, the temperature modulation unit 33 heats the lens 1 to perform functions such as defrosting or defogging.

[0074] Reference Figure 8 In one embodiment, the temperature modulation unit 33 includes multiple heating wires 331, each heating wire having a line width w of less than 1.5 mm.

[0075] Reference Figure 8 In one embodiment, at least a portion of the plurality of heating wires 331 are arranged in a parallel manner, with a spacing d greater than 1.5 mm between two adjacent heating wires 331. In one embodiment, the image extraction device further includes an image extraction module 6, wherein the field of view (FOV) of the image extraction device is greater than 60 degrees × 60 degrees, meaning that the observable angle in the horizontal direction is greater than 60 degrees and the observable angle in the vertical direction is greater than 60 degrees. Through the above design, no visually distinguishable heating wires are presented in the image extracted by the image extraction device.

[0076] In the above embodiment, the vibration unit is a piezoelectric vibration unit. However, the above disclosure does not limit the present invention. The vibration unit may also be other forms of vibration unit.

[0077] The image extraction device of this embodiment uses a vibration unit to apply vibration to the lens and a temperature modulation unit to modulate the temperature of the lens. Therefore, when water droplets, fog, or frost form on the lens surface, the temperature modulation unit can eliminate the fog and frost, and the vibration unit can vibrate away the water droplets. Compared with prior art, the image extraction device of this embodiment can be applied to various harsh climatic environments, improving driving safety.

[0078] Although the present invention has been disclosed above with reference to specific preferred embodiments, it is not intended to limit the present invention. Those skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An image extraction device, characterized in that, include: A device housing; A lens is disposed in the housing of the device; A vibration unit, suitable for applying vibration to the lens; as well as A temperature modulation unit is used to adjust the temperature of the lens.

2. The image extraction device as described in claim 1, characterized in that, The lens includes a first surface and a second surface opposite to the second surface, and the vibration unit is connected to the second surface directly or indirectly to be adapted to apply vibration to the lens.

3. The image extraction device as described in claim 2, characterized in that, The temperature modulation unit is a cooling unit, which includes a hot end and a cold end. The hot end is thermally connected to the lens to modulate the temperature of the lens.

4. The image extraction device as described in claim 3, characterized in that, The vibration unit is directly connected to the second surface, the temperature modulation unit is directly connected to the first surface, and both the vibration unit and the temperature modulation unit are located outside an imaging area of ​​the lens.

5. The image extraction device as described in claim 4, characterized in that, The vibration unit corresponds to the temperature modulation unit, and at least part of the lens is sandwiched between the vibration unit and the temperature modulation unit.

6. The image extraction apparatus as described in claim 3, characterized in that, The temperature modulation unit is directly connected to the second surface, and the vibration unit is stacked on top of the temperature modulation unit. The vibration generated by the vibration unit is transmitted to the lens through the temperature modulation unit.

7. The image extraction apparatus as described in claim 6, characterized in that, The cold end of the temperature modulation unit is connected to the vibration unit to perform temperature modulation on the vibration unit.

8. The image extraction apparatus as described in claim 3, characterized in that, The vibration unit is directly connected to the second surface, the temperature modulation unit is directly connected to the second surface, and both the vibration unit and the temperature modulation unit are located outside an imaging area of ​​the lens.

9. The image extraction apparatus as described in claim 8, characterized in that, It also includes an image extraction module and a heat conduction module, wherein the heat conduction module is thermally connected to the cold end of the temperature modulation unit and the image extraction module.

10. The image extraction apparatus as described in claim 3, characterized in that, The temperature modulation unit is disposed on the device housing, which is directly or indirectly connected to at least part of the first surface. The heat generated by the temperature modulation unit is transferred to the lens through the device housing.

11. The image extraction apparatus as described in claim 10, characterized in that, It also includes a thermally conductive material disposed on the housing of the device and directly connected to at least a portion of the first surface, the thermally conductive material being thermally connected to the temperature modulation unit and the lens.

12. The image extraction apparatus as described in claim 3, characterized in that, It also includes an image extraction module and a heat conduction module. The lens also includes a side surface, and the hot end of the temperature modulation unit is directly connected to the side surface to perform temperature modulation on the lens. The heat conduction module is thermally connected to the cold end of the temperature modulation unit, the vibration unit, and the image extraction module.

13. The image extraction apparatus as described in claim 2, characterized in that, The temperature modulation unit is a heating wire unit, which is located outside an imaging area of ​​the lens.

14. The image extraction apparatus as described in claim 13, characterized in that, The lens also includes a side surface, and the temperature modulation unit is disposed on the first surface or the side surface.

15. The image extraction apparatus as described in claim 2, characterized in that, The temperature modulation unit is a heating wire unit, which is located within an imaging area of ​​the lens.

16. The image extraction apparatus as described in claim 15, characterized in that, The temperature modulation unit is disposed on the first surface of the lens.

17. The image extraction apparatus as described in claim 15, characterized in that, The temperature modulation unit includes multiple heating wires, each with a wire width of less than 1.5 mm.

18. The image extraction apparatus as described in claim 16, characterized in that, At least some of the heating wires are arranged in a parallel manner, with a spacing of more than 1.5 mm between two adjacent heating wires.

19. The image extraction apparatus according to any one of claims 16 to 17, characterized in that, It also includes an image extraction module, wherein the viewing angle of the image extraction device is greater than 60 degrees × 60 degrees.

20. The image extraction apparatus according to any one of claims 1 to 17, characterized in that, The vibration unit is a piezoelectric vibration unit.

Images