Electronic device and lens module thereof

Abstract

The utility model provides a kind of electronic device and its lens module.Electronic device includes shell, circuit board and lens module.Circuit board is set in shell, and has connecting surface and driving unit.Driving unit is used to be actuated, generates driving signal.Lens module includes photosensitive piece, frame, lens group and light-emitting component.Photoreceptor is connected to connecting surface, and photosensitive piece has photosensitive part.Frame is connected to connecting surface, and frame has the first opening and the second opening of intercommunication.The first opening surrounds photosensitive piece.Lens group is connected to the second opening and exposes shell.Light-emitting component is adjacent to be set in photosensitive piece and is coupled driving unit.Light-emitting component is used to generate light according to driving signal, and light irradiates to photosensitive part and transmits lens group.

Description

Technical Field

[0001] An electronic device and its lens module, particularly an electronic device and its lens module capable of controlling the image produced by the lens module to cause overexposure. Background Technology

[0002] With the increasing use of imaging in electronic devices, most devices are equipped with cameras to capture images for video or biometric authentication. These devices are vulnerable to hacking, allowing unauthorized viewing through the camera lens. Therefore, preventing such viewing and image capture is a pressing need to be addressed. Utility Model Content

[0003] In view of this, an electronic device is provided in some embodiments. The electronic device includes a housing, a circuit board, and a lens module. The circuit board is disposed within the housing and has a connection surface and a driving unit. The driving unit is used to generate a driving signal when actuated. The lens module includes a photosensitive element, a frame, a lens group, and a light-emitting component. The photosensitive element is connected to the connection surface and has a photosensitive portion. The frame is connected to the connection surface and has a communicating first opening and a second opening. The first opening surrounds the photosensitive element. The lens group is connected to the second opening and protrudes from the housing. The light-emitting component is disposed adjacent to the photosensitive element and coupled to the driving unit. The light-emitting component is used to generate light according to the driving signal, and the light shines on the photosensitive portion and passes through the lens group.

[0004] In some embodiments, the lens module includes a light filter. The light filter is located between the photosensitive part and the lens group, and the light filter partially reflects light.

[0005] In some embodiments, the filter and the photosensitive part have a first distance, and the light-emitting component and the photosensitive element have a second distance, wherein the first distance and the second distance are positively correlated.

[0006] In some embodiments, the light-emitting component includes a first light-emitting element and a second light-emitting element, which are located on opposite sides of the photosensitive element.

[0007] In some embodiments, the frame includes a first assembly frame and a second assembly frame. The first assembly frame is connected to a connecting surface and has a first opening. The second assembly frame is assembled to the first assembly frame and has a second opening. The first opening has a first width, and the second opening has a second width, wherein the first width is greater than the second width.

[0008] In some embodiments, the inner side of the first assembly frame has a protrusion. The protrusion is located between the first opening and the second opening, and the filter is fixed to the protrusion.

[0009] In some embodiments, the electronic device further includes an operation switch. The operation switch is used to drive the drive unit to generate a drive signal when actuated.

[0010] In some embodiments, a lens module is further provided. The lens module includes a photosensitive element, a frame, a lens group, and a light-emitting component. The photosensitive element has a photosensitive portion. The frame has a first opening and a second opening that communicate with each other. The first opening surrounds the photosensitive element. The lens group is connected to the second opening. The light-emitting component is used to generate light according to a driving signal, and the light shines on the photosensitive portion and passes through the lens group.

[0011] In summary, the electronic device provided in some embodiments includes a housing, a circuit board, and a lens module. The lens module includes a photosensitive element, a frame, a lens group, and a light-emitting component. The driving unit of the circuit board can selectively drive the light-emitting component to generate light, so that the light can illuminate the photosensitive element and pass through the lens group. When light illuminates the photosensitive element, it can cause overexposure of the ambient image generated by the photosensitive element, resulting in a blurred ambient image to protect the user's privacy. On the other hand, when the light-emitting component generates light, the user can visually observe the light to confirm whether the light-emitting component is driven.

[0012] The following detailed description of the features and advantages of this utility model in the embodiments is sufficient to enable anyone skilled in the art to understand the technical content of this utility model and implement it accordingly. Furthermore, based on the content disclosed in this specification, the claims, and the drawings, anyone skilled in the art can easily understand the related objectives and advantages of this utility model. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the electronic device in some embodiments of the present invention;

[0014] Figure 2 This is a partial schematic diagram of the electronic device in some embodiments of the present invention, showing the lens module connected to the circuit board;

[0015] Figure 3 This is a partial exploded view of the electronic device in some embodiments of the present invention;

[0016] Figure 4 for Figure 2 Cross-sectional view along the AA direction;

[0017] In the attached figures, the following labels are used:

[0018] 100: Electronic devices

[0019] 102: Shell

[0020] 103: Compartment

[0021] 104: Circuit Board

[0022] 106: Lens Module

[0023] 108: Connecting Surface

[0024] 110: Drive Unit

[0025] 112: Photosensitive element

[0026] 114: Frame

[0027] 115: Light-transmitting part

[0028] 116: Lens Group

[0029] 118: Light-emitting components

[0030] 120: Photosensitive part

[0031] 122: First Opening

[0032] 124: Second opening

[0033] 126: Filter

[0034] 128: First light-emitting element

[0035] 130: Second light-emitting element

[0036] 132: First assembly frame

[0037] 134: Second assembly frame

[0038] 136:convex part

[0039] 138: Operation switch

[0040] A1: Light reflection space

[0041] D1: First Distance

[0042] D2: Second distance

[0043] L1: Light

[0044] L2: Optical axis

[0045] W1: First width

[0046] W2: Second width. Detailed Implementation

[0047] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4In some embodiments, the electronic device 100 includes a housing 102, a circuit board 104, and a lens module 106. The circuit board 104 is disposed within the housing 102 and has a connection surface 108 and a drive unit 110. The drive unit 110 is used to generate a drive signal when actuated. The electronic device 100 may be, for example, but not limited to, a notebook computer, a mobile communication device, or a wearable device. A user can operate the electronic device 100 to actuate the lens module 106 to capture environmental images. The user can also operate the electronic device 100 to actuate the drive unit 110 to cause overexposure of the environmental images generated by the lens module 106 to protect user privacy (described later).

[0048] In some embodiments, the housing 102 may have a receiving portion 103, which allows the circuit board 104 and the lens module 106 to be fixed to the receiving portion 103 and housed within the housing 102. In some embodiments, the housing 102 may also be made of a light-transmitting material.

[0049] The lens module 106 includes a photosensitive element 112, a frame 114, a lens group 116, and a light-emitting component 118. The photosensitive element 112 is connected to the connecting surface 108 and has a photosensitive portion 120. The frame 114 is connected to the connecting surface 108 and has a communicating first opening 122 and a second opening 124, with the first opening 122 surrounding the photosensitive element 112. The lens group 116 is connected to the second opening 124 and protrudes from the housing 102. The light-emitting component 118 is disposed adjacent to the photosensitive element 112 and coupled to the driving unit 110, and the light-emitting component 118 and the photosensitive element 112 are disposed on the same surface of the circuit board 104. The light-emitting component 118 generates light L1 according to a driving signal. Light L1 illuminates the photosensitive portion 120 and passes through the lens group 116. Light L1 can be visible light, allowing the user to observe the light L1 transmitted from the lens group 116. The light-emitting component 118 can be a red light-emitting diode, a blue light-emitting diode, a green light-emitting diode, or a yellow light-emitting diode. Taking a red light-emitting diode as an example, the light wavelength range can be from 620 nanometers (nm) to 750 nm. Taking a yellow light-emitting diode as an example, the light wavelength range can be from 570 nm to 590 nm. Taking a green light-emitting diode as an example, the light wavelength range can be from 495 nm to 570 nm. Taking a blue light-emitting diode as an example, the light wavelength range can be from 450 nm to 495 nm.

[0050] The photosensitive element 112 can be a charge-coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS). The imaging surface of the lens group 116 corresponds to the photosensitive unit 120. Ambient light can be emitted to the photosensitive unit 120 through the lens group 116, causing the photosensitive element 112 to generate an ambient image. The lens group 116 can be a single lens or composed of multiple lenses.

[0051] like Figure 3 and Figure 4 As shown, the first opening 122 of the frame 114 surrounds the photosensitive element 112, forming a light reflection space A1 between the frame 114, the lens group 116, and the connecting surface 108. When the light-emitting component 118 generates light L1, the light L1 can be reflected in the light reflection space A1, allowing a portion of the light L1 to illuminate the photosensitive part 120, while the other portion of the light L1 can pass through the lens group 116 and exit the housing 102. When the light L1 illuminates the photosensitive part 120, it can cause the photosensitive element 112 to be overexposed. Therefore, due to the overexposure of the photosensitive element 112, on the one hand, the environmental image generated by the photosensitive element 112 cannot form a clear image, thus protecting the user's privacy. On the other hand, the user can also visually observe the light L1 transmitted through the lens group 116 to confirm whether the light-emitting component 118 has been actuated, causing overexposure. In some embodiments, the frame 114 can be made of a light-transmitting material. Light L1 can pass directly or indirectly through the frame 114, and the user can visually observe the frame 114 to confirm whether the light-emitting component 118 is activated. In some embodiments, the frame 114 may have a light-transmitting portion 115, through which light L1 can pass through to the frame 114.

[0052] like Figure 3 and Figure 4As shown. In some embodiments, the lens module 106 includes a filter 126. The filter 126 is located between the photosensitive portion 120 and the lens group 116. The filter 126 partially reflects light L1. The filter 126 may be connected to the frame 114 to maintain the distance between the photosensitive portion 120 and the lens group 116. When light L1 shines on the filter 126, a portion of light L1 can pass through the filter 126. Another portion of light L1 can be reflected by the filter 126, so that light L1 can be reflected back to the photosensitive portion 120. The filter 126 can reflect a portion of the wavelength range of light L1, while another portion of the wavelength range of light L1 can pass through the filter 126. For example, the filter 126 may be an infrared cut filter, so that a portion of red light (wavelength less than 730 nm) can pass through the filter 126, while another portion of red light (wavelength greater than 730 nm) is reflected by the filter 126. In this way, the filter 126 can reflect part of the light L1 to the photosensitive unit 120, thereby causing the photosensitive element 112 to be overexposed.

[0053] like Figure 3 and Figure 4 As shown, in some embodiments, the filter 126 and the photosensitive element 120 have a first distance D1, and the light-emitting component 118 and the photosensitive element 112 have a second distance D2, with the first distance D1 and the second distance D2 being positively correlated. Specifically, the farther the light-emitting component 118 is from the photosensitive element 112 (the second distance D2 increases), the larger the reflection angle between the light ray L1 and the photosensitive element 120. The first distance D1 between the filter 126 and the photosensitive element 120 needs to be increased so that the light ray L1 emitted by the light-emitting component 118 can be reflected by the filter 126 to the photosensitive element 120. Conversely, the closer the light-emitting component 118 is to the photosensitive element 112 (the second distance D2 decreases), the smaller the reflection angle between the light ray L1 and the photosensitive element 120. The first distance D1 between the filter 126 and the photosensitive element 120 can be shortened. Therefore, the filter 126 can determine the distance (i.e., the first distance D1) between itself and the photosensitive unit 120 based on the second distance D2, so as to ensure that the light L1 can be reflected by the filter 126 to the photosensitive unit 120.

[0054] For example Figure 3 and Figure 4As shown, in some embodiments, the light-emitting component 118 includes a first light-emitting element 128 and a second light-emitting element 130. The first light-emitting element 128 and the second light-emitting element 130 are respectively located on opposite sides of the photosensitive element 112. The light L1 emitted by the first light-emitting element 128 and the second light-emitting element 130 can be the same or different wavelengths. For example, the first light-emitting element 128 and the second light-emitting element 130 can be light-emitting diodes with the same wavelength, or they can be different light-emitting diodes. For example, both the first light-emitting element 128 and the second light-emitting element 130 can be red light-emitting diodes, or they can be red light-emitting diodes and yellow light-emitting diodes, respectively. The distance between the first light-emitting element 128 and the photosensitive element 112 is substantially equal to the distance between the second light-emitting element 130 and the photosensitive element 112. Here, the light L1 emitted by the first light-emitting element 128 and the second light-emitting element 130 uniformly illuminates the photosensitive part 120 (which may be reflected to the photosensitive part 120 through the filter 126), so that each pixel in the environmental image can be overexposed.

[0055] For example Figure 3 and Figure 4 As shown, in some embodiments, the frame 114 includes a first assembly frame 132 and a second assembly frame 134. The first assembly frame 132 is connected to the connecting surface 108 and has a first opening 122. The second assembly frame 134 is assembled to the first assembly frame 132 and has a second opening 124. When the frame 114 is connected, the first assembly frame 132 can be positioned on the connecting surface 108 according to the position of the photosensitive element 112. After the second assembly frame 134 is assembled to the first assembly frame 132, on the one hand, the optical axis L2 of the lens group 116 can correspond to the center position of the photosensitive part 120. On the other hand, the filter 126 can be disposed on the first assembly frame 132, ensuring that both the first light-emitting element 128 and the second light-emitting element 130 can be located between the filter 126 and the connecting surface 108. In some embodiments, the inner side of the first assembly frame 132 has a protrusion 136, which is located between the first opening 122 and the second opening 124. The filter 126 is fixed to the protrusion 136 to be positioned between the first opening 122 and the second opening 124. In some embodiments, the first opening 122 has a first width W1, and the second opening 124 has a second width W2, wherein the first width W1 is greater than the second width W2. Here, the light reflection space A1 gradually narrows from the first opening 122 towards the second opening 124, forming a funnel shape. This allows either the first assembly frame 132 or the second assembly frame 134 to reflect light L1, focusing the light onto the photosensitive part 120.

[0056] For example Figure 1As shown, in some embodiments, the electronic device 100 further includes an operation switch 138. The operation switch 138, when actuated, drives the driving unit 110 to generate a driving signal. When a user has privacy requirements, they can actuate the driving unit 110 via the operation switch 138 to selectively control the light-emitting component 118 to generate light L1. In some embodiments, the user can also operate the operation switch 138 to drive the driving unit 110 to turn off the light-emitting component 118, causing the photosensitive element 112 to generate a clear ambient image.

[0057] In summary, some embodiments provide an electronic device 100 and a lens module 106. The lens module 106 includes a photosensitive element 112, a frame 114, a lens group 116, and a light-emitting component 118. The electronic device 100 includes a circuit board 104, and the driving unit 110 of the circuit board 104 can selectively drive the light-emitting component 118 to generate light L1, so that the light L1 can illuminate the photosensitive portion 120 of the photosensitive element 112 and pass through the lens group 116. When the light L1 illuminates the photosensitive portion 120, it can cause overexposure of the environmental image generated by the photosensitive portion 120, resulting in a blurred environmental image to protect the user's privacy. On the other hand, when the light-emitting component 118 generates light L1, the user can visually observe the light L1 to confirm whether the light-emitting component 118 is driven.

[0058] Although the technical content of this utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit this utility model. Any modifications and refinements made by those skilled in the art without departing from the spirit of this utility model should be included within the scope of this utility model. Therefore, the protection scope of this utility model shall be determined by the appended claims.

Claims

1. An electronic device, characterized in that: Include: case; A circuit board is disposed within the housing and has a connection surface and a drive unit, which generates a drive signal when actuated. as well as Lens module, including: A photosensitive element is connected to the connecting surface, and the photosensitive element has a photosensitive portion; A frame connected to the connecting surface, the frame having a first opening and a second opening that communicate with each other, the first opening surrounding the photosensitive element; The lens assembly is connected to the second opening and exposes the housing; as well as A light-emitting component is disposed adjacent to the photosensitive element and coupled to the driving unit; The light-emitting component is used to generate light according to the driving signal, and the light shines on the photosensitive part and passes through the lens group.

2. The electronic device as claimed in claim 1, characterized in that: in, The lens module includes a filter located between the photosensitive part and the lens group, and the filter partially reflects the light.

3. The electronic device as claimed in claim 2, characterized in that: in, The filter has a first distance from the photosensitive part, and the light-emitting component has a second distance from the photosensitive part. The first distance and the second distance are positively correlated.

4. The electronic device as claimed in claim 3, characterized in that: in, The light-emitting component includes a first light-emitting element and a second light-emitting element, which are located on opposite sides of the photosensitive element.

5. The electronic device as claimed in claim 2, characterized in that: in, This frame contains: A first assembly frame, connected to the connecting surface, and having the first opening; and The second assembly frame is assembled to the first assembly frame and has the second opening; The first opening has a first width, the second opening has a second width, and the first width is greater than the second width.

6. The electronic device as claimed in claim 5, characterized in that: in, The inner side of the first assembly frame has a protrusion located between the first opening and the second opening, and the filter is fixed to the protrusion.

7. The electronic device as claimed in claim 1, characterized in that: It also includes an operation switch, which, when actuated, drives the drive unit to generate the drive signal.

8. A lens module, characterized in that: include: Photosensitive element, having a photosensitive part; The frame has a first opening and a second opening that are connected, the first opening surrounding the photosensitive element; The lens assembly is connected to the second opening; as well as A light-emitting component is disposed adjacent to the photosensitive element; The light-emitting component generates light according to a driving signal, which illuminates the photosensitive part and passes through the lens group.

9. The lens module as described in claim 8, characterized in that: It also includes a filter located between the photosensitive part and the lens group, which partially reflects the light.

10. The lens module as described in claim 9, characterized in that: in, The filter has a first distance from the photosensitive part, and the light-emitting component has a second distance from the photosensitive part. The first distance and the second distance are positively correlated.

11. The lens module as described in claim 10, characterized in that: in, The light-emitting component includes a first light-emitting element and a second light-emitting element, which are located on opposite sides of the photosensitive element.

12. The lens module as described in claim 9, characterized in that: in, This frame contains: A first assembly frame having the first opening; and The second assembly frame is connected to the first assembly frame and has the second opening; The first opening has a first width, the second opening has a second width, and the first width is greater than the second width.

13. The lens module as described in claim 12, characterized in that: in, The inner side of the first assembly frame has a protrusion located between the first opening and the second opening, and the filter is fixed to the protrusion.

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