Patent ID: 12228788

DETAILED DESCRIPTION OF EMBODIMENTS

Embodiments of the present disclosure will be further described below in conjunction with accompanying drawings. Same or similar reference numerals in the accompanying drawings indicate same or similar elements or elements with same or similar functions throughout.

Furthermore, the embodiments of the present disclosure described below in conjunction with the accompanying drawings are exemplary, and are only used to explain the embodiments of the present disclosure, and should not be construed as limiting the present disclosure.

In the present disclosure, unless otherwise specifically specified or limited, a description that a first feature is “on” or “under” a second feature may indicate that the first feature directly contacts the second feature, or that the first feature and the second feature are indirectly contacted through an intermediary. Furthermore, a description that the first feature is “on”, “above”, or “on top of” the second feature may indicate that the first feature is right or obliquely “on”, “above”, or “on top of” the second feature, or just means that a sea-level elevation of the first feature is greater than a sea-level elevation of the second feature. A description that the first feature “under”, “below”, or “on bottom of” the second feature may indicate that the first feature is right or obliquely “under”, “below”, or “on bottom of” the second feature, or just means that the sea-level elevation of the first feature is less than the sea-level elevation of the second feature.

Please refer toFIG.3toFIG.6. In some embodiments, an imaging device100comprises a housing10and a first lens module20. The housing10comprises a base plate11and a side plate12disposed on the base plate11. The side plate12is provided with a sliding groove125. The first lens module20comprises a casing21and a lens group22disposed in the casing21. The casing21comprises a main body211and a sliding block212connected to the main body211. An extending direction of the sliding groove125is parallel to an optical axis O of the lens group22. The sliding block212is slidably disposed in the sliding groove125. The casing21is configured to drive the lens group22to slide.

Please refer toFIG.4andFIG.5. In some embodiments, in a direction perpendicular to a bearing surface111of the base plate11, opposite sides of the sliding block212respectively abut against opposite sides of an inner wall of the sliding groove125.

Please refer toFIG.4andFIG.5. In some embodiments, the side plate12is further provided with an installation groove126. One end of the installation groove126penetrates a surface of the side plate12away from the base plate11, and the other end of the installation groove126communicates with the sliding groove125. The sliding block212is disposed in the sliding groove125through the installation groove126.

Please refer toFIG.3toFIG.6. In some embodiments, an extending direction of the installation groove126is perpendicular or inclined to the extending direction of the sliding groove125.

Please refer toFIG.4andFIG.5. In some embodiments, the housing10further comprises a cover plate13disposed on the side plate12and comprising a cover plate body131and a resisting portion132. The resisting portion132is disposed on a side of the cover plate body131and in the installation groove126. A length L of the resisting portion132in a direction perpendicular to the bearing surface111of the base plate11is equal to a depth H of the installation groove126in the direction perpendicular to the bearing surface111.

Please refer toFIG.5. In some embodiments, when the resisting portion132is disposed in the installation groove126, the resisting portion132completely fills the installation groove126.

Please refer toFIG.4andFIG.8. In some embodiments, the casing21further comprises a top surface213and a bottom surface214opposite to each other. The top surface213faces the cover plate13. The bottom surface214faces the base plate11and is provided with a first groove215. A surface of the base plate11facing the bottom surface214is provided with a first slide rail112. The first lens module20further comprises a first rolling ball23disposed in the first groove215and abuts against a bottom of the first slide rail112.

Please refer toFIG.4andFIG.9. In some embodiments, the top surface213is provided with a second groove216. The first lens module20further comprises a second rolling ball24disposed in the second groove216and abuts against the cover plate13.

Please refer toFIG.4andFIG.10. In some embodiments, a surface of the cover plate13facing the top surface213is provided with a second slide rail134. The second rolling ball24is disposed in the second groove216and abuts against a bottom of the second slide rail134.

Please refer toFIG.11. In some embodiments, a number of the first lens module20may be multiple. The sliding block212of each first lens module20is slidably disposed in the sliding groove125. The housing10further comprises one or more spacer plates15connected to the side plate12. Two adjacent first lens modules20are separated by one spacer plate15.

Please refer toFIG.1,FIG.3, andFIG.6. An electronic device1000of the present disclosure comprises a chassis200and an imaging device100combined with the chassis200. The imaging device100comprises a housing10and a first lens module20. The housing10comprises a base plate11and a side plate12disposed on the base plate11. The side plate12is provided with a sliding groove125. The first lens module20comprises a casing21and a lens group22disposed in the casing21. The casing21comprises a main body211and a sliding block212connected to the main body211. An extending direction of the sliding groove125is parallel to an optical axis O of the lens group22. The sliding block212is slidably disposed in the sliding groove125. The casing21is configured to drive the lens group22to slide.

Please refer toFIG.4andFIG.5. In some embodiments, in a direction perpendicular to a bearing surface111of the base plate11, opposite sides of the sliding block212respectively abut against opposite sides of an inner wall of the sliding groove125.

Please refer toFIG.4andFIG.5. In some embodiments, the side plate12is further provided with an installation groove126. One end of the installation groove126penetrates a surface of the side plate12away from the base plate11, and the other end of the installation groove126communicates with the sliding groove125. The sliding block212is disposed in the sliding groove125through the installation groove126.

Please refer toFIG.3toFIG.6. In some embodiments, an extending direction of the installation groove126is perpendicular or inclined to the extending direction of the sliding groove125.

Please refer toFIG.4andFIG.5. In some embodiments, the housing10further comprises a cover plate13disposed on the side plate12and comprising a cover plate body131and a resisting portion132. The resisting portion132is disposed on a side of the cover plate body131and in the installation groove126. A length L of the resisting portion132in a direction perpendicular to the bearing surface111of the base plate11is equal to a depth H of the installation groove126in the direction perpendicular to the bearing surface111.

Please refer toFIG.5. In some embodiments, when the resisting portion132is disposed in the installation groove126, the resisting portion132completely fills the installation groove126.

Please refer toFIG.4andFIG.8. In some embodiments, the casing21further comprises a top surface213and a bottom surface214opposite to each other. The top surface213faces the cover plate13. The bottom surface214faces the base plate11and is provided with a first groove215. A surface of the base plate11facing the bottom surface214is provided with a first slide rail112. The first lens module20further comprises a first rolling ball23disposed in the first groove215and abuts against a bottom of the first slide rail112.

Please refer toFIG.4andFIG.9. In some embodiments, the top surface213is provided with a second groove216. The first lens module20further comprises a second rolling ball24disposed in the second groove216and abuts against the cover plate13.

Please refer toFIG.4andFIG.10. In some embodiments, a surface of the cover plate13facing the top surface213is provided with a second slide rail134. The second rolling ball24is disposed in the second groove216and abuts against a bottom of the second slide rail134.

Please refer toFIG.11. In some embodiments, a number of the first lens module20may be multiple. The sliding block212of each first lens module20is slidably disposed in the sliding groove125. The housing10further comprises one or more spacer plates15connected to the side plate12. Two adjacent first lens modules20are separated by one spacer plate15.

Please refer toFIG.1andFIG.2. The electronic device1000comprises the chassis200and the imaging device100combined with the chassis200. Specifically, the electronic device1000may be a mobile phone, a tablet computer, a monitor, a notebook computer, a teller machine, a gate machine, a smart watch, a head-mounted display device, a game console, or the like. The embodiments of the present disclosure are described by taking the electronic device1000as a mobile phone as an example. It can be understood that a specific form of the electronic device1000is not limited to a mobile phone.

The chassis200may be configured to install the imaging device100. In other words, the chassis200may be configured as an installation carrier for the imaging device100. The electronic device1000further comprises a front surface901and a back surface902. The imaging device100may be disposed on the front surface901as a front camera. The imaging device100may also be disposed on the back surface902as a rear camera. In the embodiments of the present disclosure, the imaging device100is disposed on the back surface902as a rear camera. In addition to installing the imaging device100, the chassis200may also be configured to install functional modules such as a power supply device and a communication device of the electronic device1000. The chassis200provides protections such as dustproof, anti-drop, and waterproof for the functional modules such as the imaging device100, the power supply device, and the communication device.

Please refer toFIG.3toFIG.6, the imaging device100comprises the housing10and the first lens module20. The first lens module20is received and installed in the housing10.

The housing10comprises the base plate11and the side plate12disposed on the base plate11. The side plate12is provided with the sliding groove125. The first lens module20comprises the casing21and the lens group22disposed in the casing21. The casing21comprises the main body211and the sliding block212connected to the main body211. The extending direction of the sliding groove125is parallel to the optical axis O of the lens group22. The sliding block212is slidably disposed in the sliding groove125. The casing21is configured to drive the lens group22to slide.

A shape of the sliding block212matches a shape of the sliding groove125. For example, the sliding groove125is a rectangular groove, and the sliding block212is a rectangular block. That is, cross-sections of the sliding groove125and the sliding block212cut by a plane (i.e. a plane parallel to a line VII-VII inFIG.3, an explanation for this below is same) perpendicular to the optical axis O are both rectangular. Alternatively, the sliding groove125is a semicircular groove, and the sliding block212is a semicircular block. That is, the cross-sections of the sliding groove125and the sliding block212cut by the plane perpendicular to the optical axis O are both semicircular. Alternatively, the sliding groove125is a rectangular groove, and the sliding block212is a semicircular block. That is, the cross-section of the sliding groove125cut by the plane perpendicular to the optical axis O is rectangular, and the cross-section of the sliding block212cut by the plane perpendicular to the optical axis O is semicircular. The cross-sections of the sliding groove125and the sliding block212cut by the plane perpendicular to the optical axis O may also be other shapes, such as other regular shapes or irregular shapes, as long as the sliding block212can match the sliding groove125to slide in the sliding groove125, which will not be described in detail herein. In this embodiment, the cross-sections of the sliding groove125and the sliding block212cut by the plane perpendicular to the optical axis O both are irregular shapes. Each of the irregular shape is a closed “D” shape composed of a straight line and an arc. A curvature of an arc corresponding to the inner wall of the sliding groove125is same as a curvature of an arc corresponding to an outer wall of the sliding block212, so that the sliding block212and the sliding groove125can be better matched.

Recently, it is generally necessary to dispose both a telephoto lens and a wide-angle lens at a same time, so that telephotography and wide-angle photography can be realized by switching the lenses. A single lens cannot realize the telephotography and the wide-angle photography.

In the imaging device100of the present disclosure, the sliding block212of the casing21cooperates with the sliding groove125of the side plate12of the housing10to move the first lens group22, so that a focal length of the imaging device100is variable. Therefore, the telephotography and the wide-angle photography can be realized without disposing a telephoto lens and a wide-angle lens at a same time.

Please refer toFIG.3andFIG.4. In this embodiment, the imaging device100comprises the housing10and the first lens module20.

The housing10comprises the base plate11, the side plate12, and the cover plate13. The base plate11, the side plate12, and the cover plate13define a receiving space14. The first lens module20is disposed in the receiving space14.

The base plate11comprises the bearing surface111. The bearing surface111is configured to bear the side plate12and the first lens module20. The base plate11may be a rectangular parallelepiped structure, a cube structure, a cylindrical structure, or a structure of other shapes, which is not limited herein. In this embodiment, the base plate11is a rectangular parallelepiped structure.

The side plate12is disposed around an edge of the base plate11. The side plate12is perpendicular to the base plate11. The side plate12may be disposed on the base plate11by gluing, screwing, snapping, or the like. The side plate12may also be integrally formed with the base plate11.

Please refer toFIG.5, the side plate12comprises an inner surface121, an outer surface122, an upper surface123, and a lower surface124. The inner surface121and the outer surface122are opposite to each other. The inner surface121is located in the receiving space14. The outer surface122is located outside the receiving space14. The inner surface121is connected to both the upper surface123and the lower surface124. The outer surface122is also connected to both the upper surface123and the lower surface124. The upper surface123and the lower surface124are opposite to each other. The lower surface124is connected to the bearing surface111of the base plate11. The upper surface123is away from the bearing surface111of the base plate11.

The side plate12further comprises a first side plate127and a second side plate128parallel to the optical axis O. The first side plate127and the second side plate128are opposite to each other. An inner surface121of the first side plate127and/or an inner surface121of the second side plate128are provided with the sliding groove125and the installation groove126. For example, the inner surface121of the first side plate127is provided with the sliding groove125and the installation groove126. Alternatively, the inner surface121of the second side plate128is provided with the sliding groove125and the installation groove126. Alternatively, both the inner side121of the first side plate127and the inner side121of the second side plate128are provided with the sliding groove125and the installation groove126. In this embodiment, both the inner side121of the first side plate127and the inner side121of the second side plate128are provided with the sliding groove125and the installation groove126. The extending direction of the sliding groove125is parallel to the bearing surface111.

The sliding groove125communicates with the receiving space14. The extending direction of the sliding groove125is parallel to the optical axis O. A groove depth of the sliding groove125is less than a thickness of the side plate12. In other words, the sliding groove125does not penetrate the outer surface122of the side plate12. In other embodiments, the sliding groove125penetrates the outer surface122of the side plate12, so that the receiving space14communicates with outside. A number of the sliding grooves125formed on the inner surface121of the first side plate127and the inner surface121of the second side plate128may be one or more. For example, the inner surface121of the first side plate127is provided with one sliding groove125, and the inner surface121of the second side plate128is provided with one sliding groove125. For another example, the inner surface121of the first side plate127is provided with two sliding grooves125, and the inner surface121of the second side plate128is provided with two sliding grooves125. For yet another example, the inner surface121of the first side plate127is provided with one sliding groove125, and the inner surface121of the second side plate128is provided with two sliding grooves125, and so on, which will not be listed herein. In this embodiment, both the inner surface121of the first side plate127and the inner surface121of the second side plate128are provided with one sliding groove125. The cross-section of the sliding groove125cut by the plane perpendicular to the optical axis O is rectangular, semicircular, or other shapes, such as other regular shapes or irregular shapes. Please refer toFIG.7. In this embodiment, the cross-section of the sliding groove125cut by the plane perpendicular to the optical axis O is an irregular shape. The irregular shape is a closed “D” shape composed of a straight line and an arc. A cross-sectional shape of the inner wall of the sliding groove125corresponds to the arc of the “D” shape.

The installation groove126communicates with the receiving space14. One end of the installation groove126penetrates the upper surface123of the side plate12. The other end of the installation groove126communicates with the sliding groove125. The extending direction of the installation groove126may be perpendicular or inclined to the extending direction of the sliding groove125. For example, the extending direction of the installation groove126is perpendicular to the optical axis O. Alternatively, the extending direction of the installation groove126is inclined at a certain angle (not 0°, but 30°, 60°, 120°, etc.) with respect to the optical axis O. In this embodiment, the extending direction of the installation groove126is perpendicular to the optical axis O. A number of the installation grooves126formed on the inner surface121of the first side plate127and the inner surface121of the second side plate128may be one or more. For example, the inner surface121of the first side plate127is provided with one installation groove126, and the inner surface121of the second side plate128is provided with one installation groove126. For another example, the inner surface121of the first side plate127is provided with two installation grooves126, and the inner surface121of the second side plate128is provided with two installation grooves126. For yet another example, the inner surface121of the first side plate127is provided with one installation groove126, and the inner surface121of the second side plate128is provided with two installation grooves126, and so on, which will not be listed herein. In this embodiment, the inner surface121of the first side plate127and the inner surface121of the second side plate128are both provided with two installation grooves126.

The cover plate13is disposed on the side plate12. Specifically, the cover plate13may be disposed on the upper surface123of the side plate12by clamping, screwing, gluing, or the like. The cover plate13comprises the cover plate body131and a plurality of the resisting portions132. The cover plate body131is connected to the upper surface123of the side plate12. The cover plate body131is provided with a light entrance133. A depth direction of the light entrance133may be perpendicular to the optical axis O, so that the imaging device100has a periscope structure as a whole. The resisting portions132are disposed on two opposite sides of the cover plate body131. Specifically, the resisting portions132are disposed on two sides of the cover plate13respectively corresponding to the first side plate127and the second side plate128. When the cover plate13is disposed on the side plate12, the resisting portions132are disposed in the installation grooves126. As shown inFIG.3, a direction parallel to the optical axis O is defined as an x direction, a direction perpendicular to the inner surface121of the first side plate127is defined as a y direction, and a direction perpendicular to the bearing surface111is defined as a z direction. The x direction, the y direction, and the z direction are perpendicular to each other. The length L of the resisting portions132in the direction perpendicular to the bearing surface111of the base plate11is equal to the depth H of the installation grooves126in the z direction. The resisting portions132are disposed in the installation grooves126, which may be that each of the resisting portions132is disposed in one installation groove126and occupies a part of a space of the installation groove126. The resisting portions132are disposed in the installation grooves126, which may be that each of the resisting portions132is disposed in one installation groove126and completely fills the installation groove126. In this embodiment, when the resisting portions132are disposed in the installation grooves126, the resisting portions132completely fill the installation grooves126so that the resisting portions132and the installation grooves126are combined more firmly, and thus the cover plate13and the side plate12are connected more firmly. In other embodiments, the light entrance133is not a via hole, but a light-transmitting physical structure. Light can enter the receiving space14from the light-transmitting physical structure.

Please refer toFIG.4toFIG.6, the first lens module20comprises the casing21and the lens group22. The lens group22is disposed in the casing21. When the casing21slides, the casing21drives the lens group22to slide. A number of the first lens module20is one or more. For example, the number of the first lens module20is one, two, three, or the like. In this embodiment, the number of the first lens module20is one.

The casing21comprises the main body211and the sliding block212. The main body211is fixedly connected to the sliding block212.

The main body211comprises a light-inlet2111and a light-outlet2112corresponding to the lens group22. The main body211is provided with an accommodating space2113for accommodating the lens group22. The accommodating space2113communicates with the receiving space14through the light-inlet2111and the light-outlet2112.

Please refer toFIG.4andFIG.5, the sliding block212is movably disposed in the sliding groove125. A number of the sliding block212matches a number of the installation groove126. The number of the sliding block212matches the number of the installation groove126, which means that a number of the sliding block212located on a surface of the main body211facing the inner surface121of the first side plate127is same as a number of the installation groove126formed on the inner surface121of the first side plate127, both are two. And, a number of the sliding block212located on a surface of the main body211facing the inner surface121of the second side plate128is same as a number of the installation groove126formed on the inner surface121of the second side plate128, both are two, and the two sliding blocks212correspond to the two installation grooves126one-to-one. In other embodiments, the number of sliding block212may be less than the number of installation grooves126. For example, the number of the sliding block212located on the surface of the main body211facing the inner surface121of the first side plate127is less than the number of the installation groove126formed on the inner surface121of the first side plate127, and the number of the sliding block212located on the surface of the main body211facing the inner surface121of the second side plate128is less than the number of the installation groove126formed on the inner surface121of the second side plate128. Moreover, a length dl of the sliding blocks212in the x direction is less than or equal to a length d2of the installation grooves126in the x direction, so as to facilitate the sliding blocks212to slide into the sliding grooves125through the installation grooves126.

The cross-section of each of the installation grooves126cut by the plane perpendicular to the optical axis O is rectangular, semicircular, or other shapes, such as other regular shapes or irregular shapes, as long as a shape of one sliding block212matches a shape of one corresponding sliding groove125. Specifically, the shape of one sliding block212matches the shape of one corresponding sliding groove125, which means that when a cross-section of the sliding groove125formed on the inner side surface121of the first side plate127cut by the plane perpendicular to the optical axis O is rectangular, a cross-section of the sliding block212located on the surface of the main body211facing the inner surface121of the first side plate127is also rectangular. when a cross-section of the sliding groove125formed on the inner side surface121of the second side plate128cut by the plane perpendicular to the optical axis O is rectangular, a cross-section of the sliding block212located on the surface of the main body211facing the inner surface121of the second side plate128is also rectangular. when a cross-section of the sliding groove125formed on the inner side surface121of the first side plate127cut by the plane perpendicular to the optical axis O is rectangular, a cross-section of the sliding block212located on the surface of the main body211facing the inner surface121of the first side plate127is also semicircular. when a cross-section of the sliding groove125formed on the inner side surface121of the second side plate128cut by the plane perpendicular to the optical axis O is semicircular, a cross-section of the sliding block212located on the surface of the main body211facing the inner surface121of the second side plate128is also semicircular, and so on, which will not be listed herein.

Please refer toFIG.7. In this embodiment, the cross-section of the sliding block212cut by the plane perpendicular to the optical axis O is an irregular shape. The irregular shape is a closed “D” shape composed of a straight line and an arc. A cross-sectional shape of the outer wall of the sliding block212corresponds to the arc of the “D” shape. The shape of one sliding block212matches the shape of one corresponding sliding groove125, which means that the curvature of the arc corresponding to the inner wall of the sliding groove125is the same as the curvature of the arc corresponding to the outer wall of the sliding block212. Therefore, the sliding block212and the sliding groove125can be better matched.

In z direction, the opposite sides of the sliding block212respectively abut against the opposite sides of an inner wall of the sliding groove125. Specifically, when the sliding blocks212are disposed in the sliding grooves125, in the z direction, opposite sides of the sliding block212corresponding to the first side plate127are abutted by opposite sides of the inner wall of the sliding groove125on the inner surface121of the first side plate127. And, opposite sides of the sliding block212corresponding to the second side plate128are abutted by opposite sides of the inner wall of the sliding groove125on the inner surface121of the second side plate128. As a result, movement of the sliding blocks212in the z direction is restricted, which prevents the sliding blocks212from shaking or tilting in the z direction, thereby ensuring that an imaging quality of the first lens module20is not affected.

The lens group22is disposed in the accommodating space2113. Specifically, the lens group22may be disposed in the accommodating space2113by gluing, screwing, snapping, or the like. The lens group22may be a separate lens, and the lens is a convex lens or a concave lens. Alternatively, the lens group22comprises a plurality of (such as two, three, etc.) lenses. The lenses may all be convex lenses or concave lenses. Alternatively, some of the lenses may be convex lenses, while others may be concave lenses. In this embodiment, the lens group22comprises three lenses.

Please refer toFIG.4andFIG.6, the imaging device100further comprises a second lens module30, a prism assembly40, and a photosensitive element50.

The second lens module30comprises a fixed casing31and a lens group32. The lens group32is disposed in the fixed casing31.

The fixed casing31is disposed on the bearing surface111of the base plate11. Specifically, the fixed casing31may be fixedly disposed on the bearing surface111by gluing, screwing, snapping, or the like. The fixed casing31may also be integrally formed with the base plate11. The fixed casing31comprises a light-inlet hole311, a light-outlet hole312, and a receiving cavity313. The receiving cavity313communicates with the receiving space14through the light-inlet hole311and the light-outlet hole312. The light-outlet hole312faces the light-inlet2111of the first lens module20. The light-inlet hole311faces the lens group32.

The lens group32is disposed in the receiving cavity313. The lens group32may be disposed in the fixed casing31by gluing, screwing, snapping, or the like. The lens group32may be a separate lens, and the lens is a convex lens or a concave lens. Alternatively, the lens group32comprises a plurality of (such as two, three, etc.) lenses. The lenses may all be convex lenses or concave lenses. Alternatively, some of the lenses may be convex lenses, while others may be concave lenses. In this embodiment, the lens group32comprises two lenses.

The prism assembly40is disposed on the bearing surface111of the base plate11and in the receiving space14. The prism assembly40comprises a mounting platform41and a prism42.

The mounting platform41is disposed on the bearing surface111of the base plate11. Specifically, the mounting platform41may be disposed on the bearing surface111by gluing, screwing, snapping, etc. The mounting platform41may also be integrally formed with the base plate11. The mounting platform41comprises a light-inlet via hole411, a light-outlet via hole412, and an accommodating cavity413. The accommodating cavity413communicates with the receiving space14through the light-inlet via hole411and the light-outlet via hole412. The light-inlet via hole411faces the light entrance133of the cover plate13. The light-outlet via hole412faces the light-inlet hole311of the second lens module30.

The prism42is disposed in the accommodating cavity413. The prism42may be disposed on the mounting platform41by gluing, snapping, or the like. The prism42comprises an incident surface421, a reflective surface422, and an emission surface423. The reflective surface422obliquely connects the incident surface421and the emission surface423. An angle between the reflective surface422and the bearing surface111may be 15 degrees, 30 degrees, 45 degrees, 60 degrees, 75 degrees, or the like. In this embodiment, the angle between the reflective surface422and the bearing surface111is 45 degrees. The incident surface421faces the light-inlet via hole411, and the emission surface423faces the light-outlet via hole412. The prism42is configured to change an exit direction of a light entering the light-inlet via hole411. The prism42may be a triangular prism. Specifically, a cross-section of the prism42is a right triangle. Two right-angled sides of the right triangle are the incident surface421and the emission surface423, respectively. A hypotenuse of the right triangle is the reflective surface422.

The photosensitive element50is disposed on the inner surface121of the side plate12. The photosensitive element50faces the light-outlet2112of the first lens module20. The photosensitive element50may be a complementary metal oxide semiconductor (CMOS) photosensitive element50or a charge-coupled device (CCD) photosensitive element50.

Please refer toFIG.4toFIG.6. In this embodiment, the prism assembly40, the second lens module30, and the first lens module20are sequentially disposed in the receiving space14along the optical axis O. The prism assembly40and the second lens module30are fixedly disposed on the bearing surface111of the base plate11. The sliding blocks212pass through the installation grooves126and then slide into the sliding grooves125, so that the sliding blocks212are slidably disposed in the sliding grooves125, and the first lens module20is slidably connected to the side plate12. The sliding blocks212are fixedly connected to the main body211. When the sliding blocks212slide in the sliding grooves125, a distance between the first lens module20and the second lens module30changes. After the prism assembly40, the second lens module30, and the first lens module20are disposed, the cover plate13is disposed on the side plate12. The resisting portions132of the cover plate13completely fill the installation grooves126. It can be understood that when the first lens module20is sliding and the sliding blocks212pass through positions of the sliding grooves125corresponding to the installation grooves126, the sliding blocks212may shake or tilt in the direction perpendicular to the bearing surface11because there is no inner wall of the sliding grooves125against the slider212. Accordingly, after the resisting portions132completely fill the installation grooves126, the resisting portions132can abut against the sliding blocks212, thereby preventing the sliding blocks212from shaking or tilting in the z direction.

It should be noted that the electronic device1000may further comprise a drive structure. For example, the drive structure may be a magnetic drive structure disposed in the receiving space14. The magnetic drive structure comprises a magnetic coil and a magnet. The magnetic coil may be disposed between the second lens module30and the first lens module20, between the prism assembly40and the second lens module30, or between the first lens module20and the photosensitive element50. The magnet may be disposed on the main body211of the first lens module20. When the magnetic coil has electricity in different directions, corresponding magnetic fields will be generated, thereby controlling the first lens module20provided with the magnet to move away from or close to the magnetic coil, and causing the sliding blocks212to slide in the sliding grooves125.

For another example, the drive structure may also be a linear motor. A stator of the linear motor may be fixedly disposed on the inner side121. A mover of the linear motor extends from the stator and is connected to the main body211. When the mover telescopically moves in a straight line, the main body211is driven to move linearly, so that sliding blocks212slide in the sliding grooves125. A number of the linear motor may be two, one is disposed on the inner side121of the first side plate127, and the other is disposed on the inner side121of the second side plate128. The linear motor may be disposed on any side of the second lens module30. For example, the linear motor may be disposed between the second lens module30and the first lens module20, between the prism assembly40and the second lens module30, or between the first lens module20and the photosensitive element50. The drive structure may also be other structures, such as a hydraulic structure, a piezoelectric motor, etc., which will not be listed herein.

During imaging, light passes through the light entrance133of the cover plate13and the light-inlet via hole411of the prism assembly40, is reflected by the reflective surface422of the prism42, and then exits from the light-outlet via hole412. Then, the light sequentially passes through the light-inlet hole311, the lens group32, and the light-outlet hole312of the second lens module30, and the light-inlet2111, the lens group22, and the light-outlet2112of the first lens module20, and finally reaches the photosensitive element50for the imaging A relative distance between the first lens module20and the second lens module30may be changed by relative movement of the sliding blocks212in the sliding grooves125, thereby changing the focal length of the imaging device100and achieving zooming of the imaging device100.

Please refer toFIG.4andFIG.8. In some embodiments, the casing21further comprises the top surface213and the bottom surface214opposite to each other. The top surface213faces the cover plate13. The bottom surface214faces the bearing surface111of the base plate11. The bottom surface214is provided with the first groove215. The surface (i.e. the bearing surface111) of the base plate11facing the bottom surface214is provided with the first slide rail112. The first lens module20further comprises the first rolling ball23disposed in the first groove215and abuts against the bottom of the first slide rail112.

Specifically, a shape of the first groove215matches a shape of the first rolling ball23. For example, the first rolling ball23is spherical and has a small moving resistance. The first groove215is a semicircular groove. A diameter of the first rolling ball23is equal to a diameter of the first groove215. In other words, a half of the first rolling ball23is disposed in the first groove215. The first rolling ball23is tightly combined with the first groove215, so that when the first rolling ball23moves, the casing21of the first lens module20is driven to move. The bearing surface111is provided with the first slide rail112. The first slide rail112may be a groove formed on the bearing surface111with an extending direction parallel to the optical axis O. The first sliding rail112may also be a boss disposed on the bearing surface111with an extending direction parallel to the optical axis O. A surface of the boss facing the bottom surface214of the casing21is provided with a groove matching the first rolling ball23. In this embodiment, the first slide rail112is a groove formed on the bearing surface111with an extending direction parallel to the optical axis O. After the first lens module20is disposed in the receiving space14, a part of the first rolling ball23is disposed in the first slide rail112and abuts against the bottom of the first slide rail112. A cross-section of an inner wall of the first slide rail112cut by the plane perpendicular to the optical axis O is a first arc. A cross-section of an outer contour of the first rolling ball23cut by the plane perpendicular to the optical axis O is a second arc. A curvature of the first arc is same as a curvature of the second arc. When the first rolling ball23rotates along the first slide rail112, in the y direction, opposite sides of an outer wall of the first rolling ball23are abutted by opposite sides of the inner wall of the first slide rail112, thereby restricting movement of the first rolling ball23in the y direction, and preventing the first lens module20from shaking or tilting in the y direction.

A number of the first groove215is one or more. For example, the number of the first groove215is one, two, three, four, or more. In this embodiment, the number of the first groove215is four. A number of the first rolling ball23may also be one or more. In this embodiment, the number of the first rolling ball23is same as the number of the first groove215, which is also four. The four first grooves215are formed on the bottom surface214of the casing21at intervals.

A number of the first slide rail112may be one or more. The number of the first slide rail112is determined according to positions of the four first grooves215. For example, if centers of the four first grooves215are on a straight line parallel to the optical axis O, only one first slide rail112is needed. For another example, the four first grooves215are divided into two groups. Each group comprises two first grooves215. A line connecting centers of the two first grooves215in each group is parallel to the optical axis O. The line connecting the centers of the two first grooves215in one group does not overlap with the line connecting the centers of the two first grooves215in the other group. Therefore, two first slide rails112are required, which respectively correspond to the two groups each comprising the two first grooves215. In this embodiment, the four first grooves215are divided into the two groups, each group comprises the two first grooves215, and the line connecting the centers of the two first grooves215in one group is parallel to the line connecting the centers of the two first grooves215in the other group, and is parallel to the optical axis O. The four first grooves215may be enclosed in a rectangle. Therefore, when the four first rolling balls23slide in the two first slide rails112, the four first rolling balls23are restricted in the two first slide rails112. And, in the y direction, the opposite sides of the outer wall of each of the first rolling balls23are abutted by the opposite sides of the inner wall of one corresponding first slide rail112, thereby preventing the first lens module20from shaking or tilting in the y direction, and ensuring that an imaging quality of the imaging device100is not affected.

Please refer toFIG.4andFIG.9. In some embodiments, the top surface213of the casing21is provided with the second groove216. The first lens module20further comprises the second rolling ball24disposed in the second groove216and abuts against the cover plate13.

Specifically, a shape of the second groove216matches a shape of the second rolling ball24. For example, the second rolling ball24is spherical and has a small moving resistance. The second groove216is a semicircular groove. A diameter of the second rolling ball24is equal to a diameter of the second groove216. In other words, a half of the second rolling ball24is disposed in the second groove216. The second rolling ball24is tightly combined with the second groove216, so that when the second rolling ball24moves, the casing21of the first lens module20is driven to move. A number of the second groove216is one or more. For example, the number of the second groove216is one, two, three, four, or more. In this embodiment, the number of the second groove216is four. A number of the second rolling ball24may also be one or more. In this embodiment, the number of the second rolling ball24is same as the number of the second groove216, which is also four. The four second grooves216are formed on the top surface of the casing21at intervals. The second rolling balls24are disposed in the second grooves216and abut against the cover plate13, so that the first lens module20is confined between the cover plate13and the base plate11, thereby preventing the first lens module20from shaking or tilting in the z direction, and ensuring that the imaging quality is not affected.

Please refer toFIG.4andFIG.10. In some embodiments, the surface of the cover plate13facing the top surface213is provided with the second slide rail134. The second rolling ball24is disposed in the second groove216and abuts against the bottom of the second slide rail134.

Specifically, the second slide rail134may be a groove formed on the surface of the cover plate13facing the top surface213with an extending direction parallel to the optical axis O. The first sliding rail112may also be a boss disposed on the surface of the cover plate13facing the top surface213with an extending direction parallel to the optical axis O. A surface of the boss facing the top surface213of the casing21is provided with a groove matching the second rolling ball24. In this embodiment, the second slide rail134is a groove formed on the surface of the cover plate13facing the top surface213with an extending direction parallel to the optical axis O. After the first lens module20is disposed in the receiving space14, a part of the second rolling ball24is disposed in the second slide rail134and abuts against the bottom of the second slide rail134. A cross-section of an inner wall of the second slide rail134cut by the plane perpendicular to the optical axis O is a third arc. A cross-section of an outer contour of the second rolling ball24cut by the plane perpendicular to the optical axis O is a fourth arc. A curvature of the third arc is same as a curvature of the fourth arc. When the second rolling ball24rotates along the second slide rail134, in the y direction, opposite sides of an outer wall of the second rolling ball24are abutted by opposite sides of the inner wall of the second slide rail134, thereby restricting movement of the second rolling ball24in the y direction, and preventing the first lens module20from shaking or tilting in the y direction.

A number of the second slide rail134may be one or more. The number of the second slide rail134is determined according to positions of the four second groove216. For example, if centers of the four second groove216are on a straight line parallel to the optical axis O, only one second slide rail134is needed. For another example, the four second groove216are divided into two groups. Each group comprises two second groove216. A line connecting centers of the two second groove216in each group is parallel to the optical axis O. The line connecting the centers of the two second groove216in one group does not overlap with the line connecting the centers of the two second groove216in the other group. Therefore, two second slide rails134are required, which respectively correspond to the two groups each comprising the two second groove216. In this embodiment, the four second groove216are divided into the two groups, each group comprises the two second groove216, and the line connecting the centers of the two second groove216in one group is parallel to the line connecting the centers of the two second groove216in the other group, and is parallel to the optical axis O. The four second groove216may be enclosed in a rectangle. Therefore, when the four second rolling balls24slide in the two second slide rails134, the four second rolling balls24are restricted in the two second slide rails134. And, in the y direction, the opposite sides of the outer wall of each of the second rolling ball24are abutted by the opposite sides of the inner wall of one corresponding second slide rail134, thereby preventing the first lens module20from shaking or tilting in the y direction, and further ensuring that the imaging quality of the imaging device100is not affected.

Please refer toFIG.11. In some embodiments, the number of the first lens module20may be multiple. The sliding block212of each first lens module20is slidably disposed in the sliding groove125. The housing10further comprises one or more spacer plates15connected to the side plate12. Two adjacent first lens modules20are separated by one spacer plate15.

Specifically, two adjacent first lens modules20are separated by one spacer plate15. The spacer plates15can limit the first lens modules20. A movement stroke of each of the first lens modules20may be determined according to a focal length range of the imaging device100. And then, installation positions of the spacer plates15are determined according to the movement stroke of each of the first lens modules20, as long as it is satisfied that the spacer plates15do not block the light-outlets2112, and that the spacer plates15can accurately limit the first lens modules20. As shown inFIG.11, the number of the first lens module20is two. One spacer plate15is disposed between the two first lens modules20, so that one of the two first lens modules20can only move between the spacer plate15and the second lens module30, and the other first lens module20can only move between the spacer plate15and the photosensitive element50.

In the description of the present disclosure, reference terms such as “certain embodiments”, “an embodiment”, “some embodiments”, “exemplary embodiments”, “an example”, “a specific example”, and “some examples” mean that specific features, structures, materials, or characteristics described with reference to the embodiments or examples are included in at least one embodiment or example in the embodiments of the present disclosure. In the present specification, example expressions of the above terms are not necessarily with respect to same embodiments or examples. Furthermore, the described specific features, structures, materials, or characteristics can be combined in a proper way in any one or more of the embodiments or examples.

Moreover, terms “first” and “second” are merely used for descriptive purposes and should not to be construed as indicating or implying a relative importance or implicitly indicating a number of the indicated technical features. Therefore, features defined with “first” and “second” may explicitly or implicitly includes at least one such feature. In the description of the present disclosure, a term “a plurality of” means “two or more” unless otherwise specifically limited.

Although the embodiments of the present disclosure have been illustrated and described above. It can be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can change, modify, replace, and transform the above embodiments within the scope of the present disclosure. The scope of the present disclosure is defined by the claims and their equivalents.