Optical path switcher and image capturing device

Abstract

The invention discloses an optical path switcher and an image capturing device. The optical path switcher comprises a first lens, a second lens, a fixed lens group, a movable lens group and a rotating module. The first lens has a first focal length. The second lens is adjacent to the first lens and has a second focal length which is different from the first focal length. The fixed lens group is located at the downstream of the light path of the first lens and comprises a first reflecting surface. The movable lens group is located at the downstream of the light path of the second lens or the first reflecting surface. The movable lens group comprises a second reflecting surface. The rotating module comprises a first rotating module which is connected with the movable mirror group, and the first rotating module is linked with the movable mirror group to rotate so that the second reflecting surface is located at the downstream of the light path of one of the second lens and the first reflecting surface.

Description

Technical Field

[0001] This invention relates to an optical path switcher, and more particularly to an optical path switcher for an image capturing device. Background Technology

[0002] With the development of photography technology, photography has become more than just a tool for taking pictures; it has been integrated into daily life as an important medium for recording and sharing events. Traditional SLR cameras no longer meet users' needs in terms of ease of use. For example, SLR camera users need to carry multiple lenses with different focal lengths or filter effects to meet various shooting needs in different scenarios.

[0003] As the photography capabilities of mobile phones, tablets and other electronic devices improve, users' demands for cameras mounted on these devices are also gradually increasing. For example, they hope to be able to take macro photos of plants or insects, wide-angle photos of landscapes and buildings, or telephoto photos of distant objects and animals while carrying an electronic device. However, due to the size limitations of electronic devices, it is difficult to achieve a wide range of focal length changes. Summary of the Invention

[0004] In view of this, the present invention provides an optical path switcher, comprising a first lens, a second lens, a fixed lens group, a movable lens group, and a rotation module. The first lens has a first focal length. The second lens is adjacent to the first lens and has a second focal length, which is different from the first focal length. The fixed lens group is located downstream of the optical path of the first lens and includes a first reflective surface. The movable lens group is located downstream of the optical path of either the second lens or the first reflective surface and includes a second reflective surface. The rotation module includes a first rotation module connected to the movable lens group, the first rotation module causing the movable lens group to rotate so that the second reflective surface is located downstream of the optical path of either the second lens or the first reflective surface.

[0005] In one embodiment, when the second reflective surface faces the second lens, the imaging light passes through the second lens and is reflected on the second reflective surface.

[0006] In one embodiment, when the second reflective surface faces the first reflective surface, the imaging light passes through the first lens and is reflected sequentially onto the first reflective surface and the second reflective surface.

[0007] In one embodiment, a relay mirror assembly is included, which includes a third reflecting surface located between the first reflecting surface and the rotating module, for reflecting the imaging light reflected by the first reflecting surface to the second reflecting surface.

[0008] In one embodiment, there are multiple first lenses and multiple fixed lens groups. The rotating module includes a second rotating module connected to a relay lens group, and the second rotating module can rotate the relay lens group so that the third reflecting surface is located downstream of the optical path of the first reflecting surface of a fixed lens group and upstream of the optical path of a movable lens group.

[0009] In one embodiment, the movable mirror assembly includes a light-shielding surface located behind the second reflective surface, the light-shielding surface preventing light from passing through.

[0010] In one embodiment, the first lens and the second lens each have an incident optical axis, the incident optical axes are parallel to each other, and the imaging light enters the first lens and the second lens along any incident optical axis.

[0011] In one embodiment, there are multiple first lenses, each first lens having an incident surface, and each incident surface facing a different direction.

[0012] The present invention also provides an image capturing device, comprising the aforementioned optical path switcher and photosensitive module, wherein the photosensitive module is located downstream of the optical path of the second reflective surface of the movable mirror group.

[0013] In one embodiment, the image capturing device includes a focusing lens and an actuator, the actuator causing the focusing lens to move between a movable lens group and a photosensitive module.

[0014] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Attached Figure Description

[0015] Figure 1 This is a perspective view of an image capturing device according to an embodiment, showing imaging light entering from a second lens.

[0016] Figure 2 A perspective view of an image capturing device according to another embodiment shows imaging light entering from a first lens.

[0017] Figure 3 This is a perspective view of an image capturing device according to another embodiment.

[0018] Figure 4 for Figure 3 A perspective view of the image capturing device in the embodiment from another angle.

[0019] Figure 5 for Figure 3 A perspective view of the image capturing device in the embodiment from another angle.

[0020] Figure 6 for Figure 3 A perspective view of the image capturing device in the embodiment shows the imaging light entering from the second lens.

[0021] Figure 7 A perspective view of the image capturing device according to another embodiment shows imaging light entering from the second lens.

[0022] Figure 8 for Figure 6 A perspective view of the image capturing device of the embodiment shows imaging light entering from the first lens.

[0023] Figure 9 for Figure 6 A perspective view of the image capturing device of the embodiment shows imaging light entering from the first lens.

[0024] Figure 10 for Figure 7 A perspective view of the image capturing device of the embodiment shows imaging light entering from the first lens.

[0025] Figure 11 for Figure 7 A perspective view of the image capturing device of the embodiment shows imaging light entering from the first lens.

[0026] Figure 12 This is a perspective view of an image capturing device according to yet another embodiment.

[0027] Figure 13 This is a perspective view of an image capturing device according to yet another embodiment.

[0028] Figure 14 This is a perspective view of an image capturing device according to yet another embodiment.

[0029] Figure 15 This is a perspective view of an image capturing device according to yet another embodiment.

[0030] Figure 16 for Figure 15 The optical path diagram of the first lens entering the image capturing device in one of the embodiments.

[0031] Figure 17 for Figure 15 The optical path diagram of the first lens entering the image capturing device in one of the embodiments.

[0032] Figure 18 for Figure 15 The optical path diagram of the first lens entering the image capturing device in one of the embodiments.

[0033] Figure 19 for Figure 15 The optical path diagram of the first lens entering the image capturing device in one of the embodiments.

[0034] Figure 20 for Figure 15 The optical path diagram of the first lens entering the image capturing device in one of the embodiments.

[0035] Figure 21 for Figure 15 The optical path diagram of the first lens entering the image capturing device in one of the embodiments.

[0036] Figure 22 This is a perspective view of an image capturing device according to yet another embodiment.

[0037] Figure 23 for Figure 6 An exploded view of the components of the image capturing device in the embodiment.

[0038] Figure 24 This is a schematic diagram of an electronic device according to an embodiment.

[0039] Figure 25 for Figure 24 Perspective view of an embodiment.

[0040] In the attached figures, the following labels are used:

[0041] 10: Optical path switcher

[0042] 12: First Shot

[0043] 122: Incident surface

[0044] 14: Second Shot

[0045] 16: Fixed lens group

[0046] 162: First reflecting surface

[0047] 18: Movable lens group

[0048] 182: Second reflecting surface

[0049] 184:Light-shielding surface

[0050] 20: Rotation Module

[0051] 202: First Rotation Module

[0052] 204: Second Rotation Module

[0053] 206: Fixed Column

[0054] 22: Relay lens group

[0055] 222: Third reflecting surface

[0056] 24: Eyeglass holder

[0057] 242: Fixing hole

[0058] 30: Image capturing device

[0059] 32: Photosensitive module

[0060] 34: Focusing lens

[0061] 36: Actuator

[0062] IL: Imaging ray

[0063] OA1: Incident optical axis

[0064] OA2: Incident optical axis Detailed Implementation

[0065] refer to Figure 1 and Figure 2 , Figure 1 This is a perspective view of an image capturing apparatus according to an embodiment, showing imaging light entering from a second lens. Figure 2 A perspective view of another embodiment of an image capturing apparatus shows imaging light entering from a first lens. The optical path switcher 10 includes a first lens 12, a second lens 14, a fixed lens group 16, a movable lens group 18, and a rotation module 20. The first lens 12 has a first focal length, and the second lens 14 is adjacent to the first lens 12 and has a second focal length; the values ​​of the first and second focal lengths are different. The fixed lens group 16 is located downstream of the optical path of the first lens 12 and includes a first reflecting surface 162. The movable lens group 18 is located downstream of the optical path of either the second lens 14 or the first reflecting surface 162, and includes a second reflecting surface 182, wherein the first reflecting surface 162 and the second reflecting surface 182 can reflect light.

[0066] The rotation module 20 includes a first rotation module 202, which is connected to the movable mirror group 18. The first rotation module 202 can rotate and rotate together with the movable mirror group 18 during the rotation, so that the second reflecting surface 182 in the movable mirror group 18 can be located downstream of the light path of either the second lens 14 or the first reflecting surface 162 to reflect the light entering from the second lens 14 or the light entering from the first lens 12 and reflected by the first reflecting surface 162.

[0067] Continued reference Figure 1 and Figure 2 The optical path switcher 10 can be integrated with the photosensitive module 32 to form an image capturing device 30. The photosensitive module 32 is located downstream of the optical path of the second reflective surface 182 of the movable lens group 18, and is used to capture the imaging light IL of a target object in the environment. When it is desired to acquire an image of a target object in the environment, the imaging light IL of the target object can enter the image capturing device 30 from the first lens 12 or the second lens 14, and the reflection of the optical path switcher 10 will enable the photosensitive module 32 to receive the imaging light IL of the target object and convert the imaging light IL into an image of the target object.

[0068] In some embodiments, the first focal length and the second focal length of the first lens 12 and the second lens 14 are different to provide imaging capabilities of the image capturing device across a focal length range of more than 30 focal lengths to meet different shooting needs. For example, the first focal length of the first lens 12 may be between 35 mm and 60 mm, making the first lens 12 a standard lens suitable for general everyday portrait and landscape shooting; the second focal length of the second lens 14 may be different from the first focal length, for example, the second focal length may be less than 35 mm, making the second lens 14 a short focal length lens suitable for wide-angle shooting.

[0069] The specific focal length values ​​of the first lens 12 and the second lens 14 are not limited here. In addition to the standard lens and short focal length lens mentioned above, the first lens 12 and the second lens 14 may also be ultra-wide-angle lens (focal length of less than 24 mm), medium telephoto lens (focal length between 40 and 70 mm), telephoto lens (focal length greater than 135 mm) or super telephoto lens (focal length greater than or equal to 400 mm) depending on the size of the focal length.

[0070] The optical path switcher 10 in the image capturing device 30 enables the image capturing device 30 to switch between different focal length lenses even when there is only one photosensitive module 32. Even if the imaging light IL from different focal length lenses enters the image capturing device 30, it can enter the same photosensitive module 32 through the optical path switching of the optical path switcher 10.

[0071] Taking the aforementioned first lens 12 suitable for general daily shooting and the second lens 14 suitable for wide-angle shooting as an example, when the user wants to take a daily shot, the first rotation module 202 of the optical path switcher 10 drives the movable lens group 18 to rotate so that its second reflective surface 182 is downstream of the optical path of the first reflective surface 162. When the imaging light IL enters the image capturing device 30 from the first lens 12, the imaging light IL passing through the first lens 12 will be reflected from the first reflective surface 162 of the fixed lens group 16 to the second reflective surface 182 of the movable lens group 18, and then reflected by the second reflective surface 182 to the photosensitive module 32 (visible in... Figure 2 When the user wishes to take a wide-angle shot, the first rotation module 202 of the optical path switcher 10 rotates the movable lens group 18 so that the second reflective surface 182 of the movable lens group 18 is located downstream of the optical path of the second lens 14. When the imaging light IL enters the image capturing device 30 from the second lens 14, the imaging light IL passing through the second lens 14 will reach the second reflective surface 182 of the movable lens group 18 and be reflected by the second reflective surface 182 to the photosensitive module 32 (visible in the image sensor). Figure 1In this way, the position of the second reflective surface 182 of the movable lens group 18 can be changed by the optical path switcher 10 so that the imaging light IL entering the image capturing device 30 from either the first lens 12 or the second lens 14 can reach the photosensitive module 32.

[0072] refer to Figures 3 to 5 , Figure 3 This is a perspective view of an image capturing device according to another embodiment. Figure 4 for Figure 3 A perspective view of the image capturing device in the embodiment from another angle. Figure 5 for Figure 3 This is a perspective view of the image capturing device in the embodiment. In some embodiments, a relay lens group 22 may be provided between the fixed lens group 16 and the movable lens group 18 of the optical path switcher 10 so that light entering from the first lens 12 located at various different positions can reach the second reflective surface 182 of the movable lens group 18. In the embodiment where the optical path switcher 10 is integrated into the image capturing device 30, light entering from the first lens 12 located at various different positions can enter the same photosensitive module 32.

[0073] In some embodiments, the relay lens assembly 22 includes a third reflecting surface 222, which is located between the first reflecting surface 162 of the fixed lens assembly 16 and the rotating module 20, for reflecting the imaging light IL reflected by the first reflecting surface 162 of the fixed lens assembly 16 to the second reflecting surface 182. In some embodiments, references are made to... Figure 1 and Figure 3 Therefore, the adjacency relationship between the first shot 12 and the second shot 14 is unrestricted. However, with... Figure 3 When the arrangement is in the middle, a relay lens group 22 can be added so that the light entering from the first lens 12 can be reflected to the movable lens group 18.

[0074] In some embodiments, there are multiple first lenses 12, each adjacent to a second lens 14. The number of fixed lens groups 16 corresponds to the number of second lenses 14, with the first reflecting surface 162 of each fixed lens group 16 located downstream of the optical path of the second lens 14. In this case, there may also be multiple relay lens groups 22, located between the fixed lens groups 16 and the movable lens groups 18. In some embodiments, the first focal length of each first lens 12 may also be different, so that the imaging light IL entering from different first lenses 12 can achieve different shooting effects.

[0075] refer to Figure 6 and Figure 7 , Figure 6 for Figure 3 A stereoscopic view of the image capturing device in the embodiment, showing the imaging light entering from the second lens. Figure 7A perspective view of the image capturing device according to another embodiment shows the imaging ray IL entering from the second lens. In an embodiment where the optical path switcher 10 includes a relay lens group 22, when the imaging ray enters the optical path switcher 10 from the second lens 14, the imaging ray IL travels and is reflected by the second reflecting surface 182.

[0076] refer to Figure 8 , Figure 9 , Figure 10 or Figure 11 , Figure 8 and Figure 9 They are respectively Figure 6 A perspective view of the image capturing device in the embodiment shows imaging light entering from the first lens. Figure 10 and Figure 11 They are respectively Figure 7 A perspective view of the image capturing device of the embodiment shows imaging light entering from the first lens. In these embodiments, the first lens 12 and the second lens 14 can be arranged alternately. Specifically, the fixed lens group 16 can be located on both sides of the first rotating module 202, or the fixed lens group 16 can be located on the side closer to the photosensitive module 32, with the relay lens group 22 located between the fixed lens group 16 and the movable lens group 18, and the third reflective surface 222 facing both the fixed lens group 16 and the movable lens group 18, thereby reflecting the light from the fixed lens group 16 to the movable lens group 18. When the imaging light IL enters the optical path switcher 10 from the first lens 12, the first rotation module 202 will rotate to rotate the movable lens group 18 together, so that the second reflective surface 182 of the movable lens group 18 is located downstream of the optical path of the third reflective surface 222 of the relay lens group 22. The imaging light IL will be reflected sequentially on the first reflective surface 162 of the fixed lens group 16, the third reflective surface 222 of the relay lens group 22 and the second reflective surface 182 of the movable lens group 18.

[0077] Continued reference Figure 8 The movable lens group 18 includes a light-shielding surface 184 located behind the second reflective surface 182, which prevents light from passing through. In embodiments where there are multiple first lenses 12, the first lenses 12 may include a first lens 12a and a first lens 12b. When the user takes a picture using the first lens 12a, and the second reflective surface 182 of the movable lens group 18 is located downstream of the optical path of the relay lens group 22 corresponding to the first lens 12a, the light-shielding surface 184 can block the imaging light entering from the first lens 12b, reducing the interference caused by the imaging light IL entering the optical path switcher 10 from the first lens 12b on the image formation of the photosensitive module 32.

[0078] refer to Figure 12 and Figure 13 , Figure 12 and Figure 13These are perspective views of an image capturing apparatus according to yet another embodiment. In some embodiments, the rotation module 20 includes a second rotation module 204 connected to a relay lens group 22. When the second rotation module 204 rotates, it can also rotate the relay lens group 22 so that the third reflecting surface 222 of the relay lens group 22 is located downstream of the optical path of the first reflecting surface 162 of the fixed lens group 16 and upstream of the optical path of the movable lens group 18. In this embodiment, there are multiple first lenses 12 and fixed lens groups 16, with one first lens 12 corresponding to one fixed lens group 16 or one relay lens group 22. A relay lens group 22 can be set between every two fixed lens groups 16. The rotation of the second rotation module 204 causes the relay lens group 22 to rotate so that the third reflecting surface 222 of the relay lens group 22 faces the first reflecting surface 162 of one of the two fixed lens groups 16, so as to reflect the imaging light IL reflected from the first reflecting surface 162 to the second reflecting surface 182 of the movable lens group 18.

[0079] since Figure 12 and Figure 13 It can be seen that the third reflecting surface 222 of the relay lens group 22 is respectively facing one of the fixed lens groups 16 to reflect the imaging light reflected from the fixed lens group 16 to the movable lens group 18.

[0080] Please refer to the above. Figure 14 , Figure 14 This is a perspective view of an image capturing apparatus according to yet another embodiment. In embodiments where there are multiple first lenses 12 and multiple fixed lens groups 16, with one first lens 12 corresponding to one fixed lens group 16 or one relay lens group 22, and where a relay lens group 22 is provided between every two fixed lens groups 16, the first lens 12 may be located to the left or right of the second lens 14, or refer to... Figure 15 Multiple first cameras 12 can be set on both the left and right sides of the second camera 14, without any restrictions.

[0081] refer to Figures 16 to 21 , Figures 16 to 21 show Figure 15 In the embodiment, the optical path diagram from each first lens into the image capturing device is such that the first rotation module 202 and the second rotation module 204 can rotate in cooperation with each other so that the imaging light IL from each first lens 12 into the image capturing device 30 can reach the photosensitive module 32 through the optical path switcher 10.

[0082] Reference Figure 4In some embodiments, the first lens 12 has an incident optical axis OA1, and the second lens 14 has an incident optical axis OA2. The incident optical axes OA1 and OA2 are parallel to each other. The imaging ray IL entering the optical path switcher 10 can enter the first lens 12 or the second lens 14 along either the incident optical axis OA1 or the incident optical axis OA2.

[0083] In the aforementioned embodiments where there are multiple first lenses 12, each first lens 12 may have an incident surface 122, and each incident surface 122 may face the same direction, as shown in the reference. Figure 22 , Figure 22 Based on a perspective view of the image capturing device in another embodiment, in some other embodiments, the incident surface 122 faces different directions, thereby receiving imaging light rays IL entering the optical path switcher 10 from different directions. In embodiments where the optical path switcher 10 is integrated into the image capturing device 30, the imaging light rays IL entering the optical path switcher 10 from each direction can all enter the same photosensitive module 32.

[0084] refer to Figure 23 , Figure 23 for Figure 6 An exploded view of the image capturing device of the embodiment. In some embodiments, the fixed lens group 16, the movable lens group 18, and the relay lens group 22 can each be implemented by a prism, and the first reflecting surface 162, the second reflecting surface 182, and the third reflecting surface 222 can be the inclined surfaces of the prism. In other embodiments, the fixed lens group 16 or the movable lens group 18 can be composed of lenses and mirrors, beam splitters, etc. connected to each other, wherein the first reflecting surface 162, the second reflecting surface 182, and the third reflecting surface 222 are mirrors with high reflectivity, so that light is reflected by total internal reflection or near total internal reflection.

[0085] In some embodiments, the fixed lens assembly 16, the movable lens assembly 18, and the relay lens assembly 22 include a lens holder 24, and the first reflective surface 162, the second reflective surface 182, and the third reflective surface 222 are respectively fixed to the lens holder 24. In some embodiments, the lens holder 24 includes a fixing hole 242, and the first rotating module 202 or the second rotating module 204 includes a fixing post 206. The fixing post 206 is disposed in the fixing hole 242 so that when the first rotating module 202 or the second rotating module 204 rotates, the movable lens assembly 18 or the relay lens assembly 22 rotates together.

[0086] Please refer to the above. Figure 4In some embodiments, the image capturing device 30 includes a focusing lens 34 and an actuator 36, the actuator 36 actuating the focusing lens 34 to move between the movable lens group 18 and the photosensitive module 32. The first lens 12 or the second lens 14 may be a fixed focal length lens, and the effect of zoom is achieved by the actuator 36 actuating the focusing lens 34 to change the distance between the focusing lens 34 and the photosensitive module 32. Each first lens 12 and second lens 14 already enables the image capturing device 30 to have multiple focal lengths; matching the first or second focal length with the focusing range of the focusing lens 34 can give the image capturing device 30 a wider focal length range.

[0087] In some embodiments, in addition to having different focal lengths, the first lens 12 or the second lens 14 may also be equipped with different filters or have their lens surface designs changed to give the image capturing device 30 different filter effects, thus meeting the shooting needs of more users.

[0088] refer to Figure 24 and Figure 25 , Figure 24 This is a schematic diagram of an electronic device according to an embodiment. Figure 25 for Figure 24 Perspective view of an embodiment. In some embodiments, the image capturing device 30 can be integrated into an electronic device as a photographic device for the electronic device, thereby enabling the electronic device to meet various shooting needs of the user. In some embodiments, the electronic device can be equipped with a front lens or a rear lens to facilitate the user in shooting targets located in different directions. In embodiments where the incident surface 122 of the first lens 12 faces different directions, one of the first lenses 12 can be used as the front lens of the electronic device, and the other first lens 12 and second lens 14 can be used as the rear lens of the electronic device. Through the optical path switcher 10, the imaging light IL entering each of the first lenses 12 and second lenses 14 can all reach the same photosensitive element. Therefore, with only one photosensitive element required for the image capturing device 30, the space required to be reserved for the image capturing device 30 in the electronic device can be greatly reduced, thereby reducing the size of the electronic device. The electronic device can be a mobile phone, tablet computer, etc.

[0089] In some embodiments, the first lens and the second lens may be implemented by lens types such as spherical lens, aspherical lens, Burson aspherical lens, mirror lens, lens lens, focal length adjustable lens and continuous focal length lens, respectively.

[0090] In some embodiments, the photosensitive module 32 may be a photosensitive device that converts photons into electronic signals, such as a CMOS (Complementary Metal-Oxide-Semiconductor), a CCD (Charge-Coupled Device), or a BSI (Back Side Illuminated) sensor.

[0091] In some embodiments, the rotation module 20 may be implemented using a stepper motor, a voice coil motor (VCM), a piezoelectric motor, a shape memory alloy motor (SMA), or a micro-electro mechanical system (MEMS).

[0092] In summary, the optical path switcher 10 allows light from different lenses entering the image capturing device 30 to enter the same photosensitive module 32. If the electronic device needs to be equipped with multiple lenses, the number of photosensitive modules 32 can be reduced, thereby significantly reducing the size of the electronic device.

[0093] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the claims of the present invention.

Claims

1. An optical path switcher, characterized in that, Include: The first lens has the first focal length; A second lens is located adjacent to the first lens, and the second lens has a second focal length that is different from the first focal length. A fixed lens assembly is located downstream of the optical path of the first lens, and the fixed lens assembly includes a first reflective surface; A movable mirror assembly is located downstream of the optical path of the second lens or the first reflective surface, and the movable mirror assembly includes a second reflective surface; and The rotating module includes a first rotating module connected to the movable mirror group, wherein the first rotating module rotates the movable mirror group so that the second reflecting surface is located downstream of the optical path of either the second lens or the first reflecting surface.

2. The optical path switcher according to claim 1, characterized in that, When the second reflective surface faces the second lens, the imaging light passes through the second lens and is reflected on the second reflective surface.

3. The optical path switcher according to claim 1, characterized in that, When the second reflective surface faces the first reflective surface, the imaging light passes through the first lens and is reflected sequentially onto the first reflective surface and the second reflective surface.

4. The optical path switcher according to claim 3, characterized in that, The system includes a relay lens assembly, which includes a third reflecting surface located between the first reflecting surface and the rotating module, for reflecting the imaging light reflected from the first reflecting surface to the second reflecting surface.

5. The optical path switcher according to claim 4, characterized in that, The number of the first lenses is multiple, the number of the fixed lens groups is multiple, and the rotation module includes a second rotation module connected to the relay lens group, and the second rotation module can drive the relay lens group to rotate so that the third reflecting surface is located downstream of the optical path of the first reflecting surface of the fixed lens group and upstream of the optical path of the movable lens group.

6. The optical path switcher according to claim 4, characterized in that, The movable mirror assembly includes a light-shielding surface located behind the second reflective surface, which prevents light from penetrating.

7. The optical path switcher according to claim 1, characterized in that, The first lens and the second lens each have an incident optical axis, the incident optical axes are parallel to each other, and the imaging light enters the first lens and the second lens along either of the incident optical axes.

8. The optical path switcher according to claim 1, characterized in that, The number of first lenses is multiple, and each first lens has an incident surface, which are oriented in different directions.

9. An image capturing device, characterized in that, Include: Optical path switcher, comprising: The first lens has the first focal length; A second lens is located adjacent to the first lens, and the second lens has a second focal length that is different from the first focal length. A fixed lens assembly is located downstream of the optical path of the first lens, and the fixed lens assembly includes a first reflective surface; A movable mirror assembly is located downstream of the optical path of the second lens or the first reflective surface, and the movable mirror assembly includes a second reflective surface; and A rotating module includes a first rotating module connected to the movable mirror assembly, wherein the first rotating module rotates the movable mirror assembly to position the second reflecting surface downstream of the optical path of either the second lens or the first reflecting surface; and The photosensitive module is located downstream of the optical path of the second reflective surface of the movable mirror assembly.

10. The image capturing device according to claim 9, characterized in that, It includes a focusing lens and an actuator, the actuator causing the focusing lens to move between the movable lens group and the photosensitive module.

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