Adjustable optical module

Abstract

An adjustable optical module includes an optical element, a frame, a base, a plurality of intermediates, a central shaft and a driving assembly. The frame includes a plurality of side walls and a support plate. The side walls and the support plate form a receiving space to receive the optical element. The support plate has a plurality of intermediate placement slots and a central shaft placement hole. A bottom plate of the base includes a plurality of guide slots and a central hole. Each of the intermediates is located between a corresponding one of the intermediate placement slots and one of the guide slots, so that the frame and the base have a first position and a second position. The central shaft is located in the central shaft placement hole and the central hole. A portion of the central shaft located in the central shaft placement hole is larger than a portion of the central shaft located in the central hole. The driving assembly is used to drive the frame to selectively locate in the first position and the second position.

Description

Technical Field

[0001] This invention relates to electronic devices having adjustable optical modules, and more particularly to an adjustable optical module. Background Technology

[0002] With the development of technology, electronic products are increasingly emphasizing slim and lightweight designs and superior photography experiences. Most electronic products now feature lens modules with shooting capabilities. However, in pursuit of high-quality images, the structure of the lens module often hinders the slim and lightweight design of the electronic product. Alternatively, the lens module may exhibit poor focusing capabilities. Or, the electronic product may suffer from complex assembly processes. Summary of the Invention

[0003] In view of the above problems, according to one embodiment, an adjustable optical module includes optical elements, a frame, a base, a plurality of intermediaries, a central shaft, and a drive assembly. The frame includes a plurality of sidewalls and a support plate. These sidewalls and support plates form a receiving space. The optical elements are located in the receiving space. The support plate has a plurality of intermediary placement slots and a central shaft placement hole. The base includes a bottom plate. The bottom plate includes a plurality of guide grooves and a central hole. The intermediary placement slots, guide grooves, and intermediaries correspond to each other. Each intermediary is located between a corresponding intermediary placement slot and guide groove, such that the frame and base have a first position and a second position. The central shaft is located between the central shaft placement hole and the central hole. A portion of the central shaft located in the central shaft placement hole is larger than a portion of the central shaft located in the central hole. The drive assembly is used to drive the frame to selectively be in the first position and the second position.

[0004] In some embodiments, the central shaft has an upper shaft portion, a convex ring, and a lower shaft portion. The convex ring is located on the outer surface of the central shaft. The convex ring is in substantial contact with the base plate. The upper shaft portion is located in the central shaft mounting hole. The lower shaft portion is located in the central hole.

[0005] In some embodiments, each guide groove is a cylindrical groove. The diameter of the cylindrical groove is larger than the diameter of the corresponding intermediate element. The distance from each cylindrical groove to the central hole is substantially equal.

[0006] In some embodiments, the adjustable optical module further includes a frame elastic member. Two ends of the frame elastic member are fixed to the frame, and the middle section of the frame elastic member is fixed to the base.

[0007] In some embodiments, the frame further includes an opening. The opening is located in the middle of the frame. The position of the opening corresponds to the middle section of the frame elastic element. The middle section of the frame elastic element is engaged and fixed to the base.

[0008] In some embodiments, the adjustable optical module further includes an optical carrier and a pivot. The optical carrier supports optical elements and includes a side recess. The frame further includes a pivot placement slot. The pivot is located between the side recess and the pivot placement slot. A drive assembly drives the optical carrier to rotate about the pivot as a center of rotation.

[0009] In some embodiments, the adjustable optical module further includes a shaft element. The frame further includes a shaft element placement slot. The optical carrier further includes a rear recess. The shaft element is located between the rear recess and the shaft element placement slot. Both ends of the shaft element substantially contact the rear recess and the shaft element placement slot.

[0010] In some embodiments, the adjustable optical module further includes a mounting elastic element. A first end of the mounting elastic element is fixed to the optical carrier. A second end of the mounting elastic element is fixed to the frame.

[0011] In summary, according to one embodiment, the frame is driven by a drive component to rotate around a central axis, and has a compact structure that facilitates assembly. Furthermore, in some embodiments, through the rotation axis structure and connection structure of the adjustable optical module, the adjustable optical module provides good optical image stabilization compensation.

[0012] 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

[0013] Figure 1 A perspective view (a) of an adjustable optical module according to some embodiments.

[0014] Figure 2 for Figure 1 An exploded 3D view of the adjustable optical module.

[0015] Figure 3 This is a perspective view of the framework for some embodiments.

[0016] Figure 4 for Figure 1 The cross-sectional view marked 4-4 shows the connection relationship between the rotating shaft, frame and optical support.

[0017] Figure 5 for Figure 4 The enlarged view at position 5 shows the radius of the pivot, the dimensions of the concave arc surface, and the placement arc surface.

[0018] Figure 6 This is a perspective view of an optical carrier according to some embodiments.

[0019] Figure 7 for Figure 1 The cross-sectional view marked 7-7 shows the connection relationship between the shaft, the side groove, and the shaft placement groove.

[0020] Figure 8 A perspective view (II) of an adjustable optical module for some embodiments.

[0021] Figure 9 for Figure 8 An exploded 3D view of the adjustable optical module.

[0022] Figure 10 for Figure 8 The cross-sectional view marked 10-10 shows the driven rotational position of the frame.

[0023] Figure 11 for Figure 8 An exploded three-dimensional view of the frame, base, and intermediate components shown.

[0024] Figure 12 for Figure 8 The cross-sectional view marked 12-12 shows the positions of the shaft element, optical support, and frame.

[0025] Figure 13 for Figure 8 The cross-sectional view marked 13-13 shows the connection relationship between the seat elastic element, the optical bearing seat and the base.

[0026] Figure 14 for Figure 8 The cross-sectional view marked 14-14 shows the position of the shaft and shaft components.

[0027] Figure 15 A perspective view (III) of an adjustable optical module according to some embodiments.

[0028] Figure 16 for Figure 15 An exploded three-dimensional view of the frame, central axis, and base shown.

[0029] Figure 17 for Figure 15 The cross-sectional view marked 17-17 shows the connection relationship between the central shaft, the central shaft mounting hole, and the central hole.

[0030] Figure 18 for Figure 17 Enlarged view of position 18.

[0031] Figure 19 for Figure 15 The cross-sectional view marked 19-19 shows the location of the opening and the base fixing part.

[0032] Figure 20 for Figure 19 A three-dimensional view of the base shown.

[0033] In the attached figures, the following labels are used:

[0034] 11: Optical Components

[0035] 20: Optical support

[0036] 21: Side groove

[0037] 22: Rear groove

[0038] 23: Alignment Groove

[0039] 24: Outer convex part

[0040] 25: Bottom of the trough

[0041] 26: Concave arc surface

[0042] 27: Side end wall

[0043] 29: Rear end wall

[0044] 201, 202: Load-bearing walls

[0045] 211: Carrying space

[0046] 225: Gap

[0047] 30: Framework

[0048] 31: Shaft placement slot

[0049] 32: Shaft component placement slot

[0050] 33: Place the curved surface

[0051] 34: Medium-sized component placement slot

[0052] 35: Shaft placement end wall

[0053] 36: Opening

[0054] 37: Support plate

[0055] 38: Central shaft mounting hole

[0056] 39: Frame fixing part

[0057] 301, 302: Frame sidewalls

[0058] 311: Frame accommodation space

[0059] 321: End wall where shaft elements are placed

[0060] 41: Shaft

[0061] 42: Shaft element

[0062] 43: Central axis

[0063] 44: Upper shaft section

[0064] 45:convex ring

[0065] 46: Lower shaft section

[0066] 50: Base

[0067] 51: Base Plate

[0068] 53: Guide groove

[0069] 53a: Arc-shaped groove

[0070] 53b: Cylindrical groove

[0071] 54: Center Hole

[0072] 58: Positioning bump

[0073] 59: Base fixing part

[0074] 511: Base Accommodation Space

[0075] 60, 60': Driver components

[0076] 61, 61': Coil

[0077] 62, 62': Magnet

[0078] 63, 63': Position sensor

[0079] 64, 64': Circuit board

[0080] 70: Seat elastic element

[0081] 72: First end

[0082] 75: Second End

[0083] 80: Intermediary documents

[0084] 90: Frame elastic element

[0085] 95: Card-connecting section

[0086] P1, P2: Axles

[0087] α: arc angle

[0088] C1: Position of the first frame

[0089] C2: Second frame position

[0090] D1, D2, D3: Length

[0091] R4: Radius

[0092] R3, R2: Radius of curvature

[0093] B1: First seat

[0094] B2: Second seat

[0095] L, L': Light rays

[0096] H2, H5: Distance Detailed Implementation

[0097] The structural and working principles of the present invention will be described in detail below with reference to the accompanying drawings:

[0098] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 . Figure 1 A perspective view (a) of an adjustable optical module according to some embodiments. Figure 2 for Figure 1 An exploded 3D view of the adjustable optical module. Figure 3 This is a perspective view of the framework for some embodiments. Figure 4 for Figure 1 The cross-sectional view marked 4-4 shows the connection relationship between the rotating shaft, frame and optical support. Figure 5 In order to be in Figure 4 The enlarged view at position 5 shows the radius of the pivot, the dimensions of the concave arc surface, and the placement arc surface.

[0099] Adjustable optical modules are mounted on electronic devices, such as, but not limited to, mobile devices (e.g., smartphones, tablets, or laptops), or electronic devices with camera functions.

[0100] The adjustable optical module includes an optical element 11, an optical carrier 20, a frame 30, a rotating shaft 41, and a drive assembly 60.

[0101] Optical element 11 can be a prism or an optical element with the function of reflecting light. For example, light ray L can travel along... Figure 1 The light rays enter the adjustable optical module along the Z-axis, are reflected by the optical element 11, and then leave the adjustable optical module along the -Y-axis direction. The reflected light rays L are then received by the lens module (not shown in the figure) in the electronic device and imaged.

[0102] Optical support 20 supports optical element 11. Frame 30 includes a pivot placement slot 31. A pivot 41 is located between the optical support 20 and the pivot placement slot 31, making the optical support 20 adjacent to the frame 30. The pivot placement slot 31 includes a curved surface 33 (see...). Figure 3 The radius R4 of the pivot 41 is smaller than the radius of curvature R3 of the placed arc surface 33 (see...). Figure 5The shaft 41 can be, but is not limited to, a cylindrical shaft or a ball bearing. The following description uses a cylindrical shaft 41 as an example.

[0103] The drive assembly 60 drives the optical carrier 20 to rotate about the pivot 41. The drive assembly 60 includes a coil 61, a magnet 62, a position sensor 63, and a circuit board 64. The coil 61 is located on the circuit board 64 and can be a planar coil. The position sensor 63 is coupled to the circuit board 64 and can be a Hall sensor, a magnetic field sensing chip, or other sensor capable of sensing the position of the magnet 62. The magnet 62 is located on the optical carrier 20, for example, but not limited to, at the bottom of the optical carrier 20. When the coil 61 is driven in a predetermined manner to generate magnetic force, the electromagnetic force of the coil 61 selectively generates an attractive or repulsive force with the magnet 62, thereby causing the optical carrier 20 to rotate about the pivot 41 (the axis of the pivot 41 is...). Figure 2 The central axis P1 rotates clockwise or counterclockwise. Detailed instructions for the rotation of the optical support 20 will be provided later. It should be noted that the adjustable optical module may include multiple sets of drive components 60. For example, the drive component 60 that drives the optical support 20 to rotate about a first axis is called the first drive component. The drive component 60 that drives the frame 30 to rotate about a second axis is called the second drive component. The first and second axes are substantially perpendicular. The detailed instructions for the drive components 60 on the two axes will be provided below using the first and second drive components. The first drive component is denoted by the symbol 60, and the second drive component by the symbol 60'.

[0104] Specifically, at Figure 3 In the frame 30, multiple frame sidewalls 301 and 302 are included. One frame sidewall 302 connects to two frame sidewalls 301 to form a frame accommodating space 311, which is used to accommodate the optical carrier 20. The frame 30 includes a pivot placement groove 31. The pivot placement groove 31 has a placement arc surface 33 and a pivot placement end wall 35. Figure 4 In this configuration, the rotating shaft 41 is located between the optical support 20 and the rotating shaft placement groove 31, making the optical support 20 adjacent to the frame 30. Figure 5 In this configuration, the center of the arc 33 is at a distance from the axis of rotation 41. The radius of curvature R3 is greater than the radius R4. The concave arc 26 is in substantial contact (point contact) with the axis of rotation 41. Thus, the optical support 20 can rotate relative to the frame 30 about one axis.

[0105] On the other hand, please refer to Figure 2 and Figure 6 . Figure 6This is a perspective view of an optical support 20 according to some embodiments. The optical support 20 includes a plurality of support walls 201, 202 and a plurality of protrusions 24. Two support walls 201 and one support wall 202 are connected to form a support space 211 for supporting the optical element 11. Each protrusion 24 is connected to one support wall 201, 202 respectively. The protrusions 24 are located above the frame side walls 301, 302 respectively (i.e., the protrusions 24 are located above the frame side walls 301, 302). Figure 2 The Z-axis position is higher than the Z-axis position of the frame sidewalls 301 and 302.

[0106] The protrusion 24 connected to the support wall 201 includes a side groove 21. The side groove 21 has an inwardly concave arc surface 26 and a side end wall 27 (see [reference needed]). Figure 6 ).At Figure 2 In this configuration, the openings of the side groove 21 and the shaft placement groove 31, located on the same side, are opposite each other. One shaft 41 corresponds to one side groove 21 and one shaft placement groove 31. Figure 5 In this configuration, the radius of curvature R2 is smaller than the radius of curvature R3. The radius of curvature R2 of the concave arc surface 26 is exactly equal to the radius R4 of the rotating shaft 41. This ensures that there is no gap between the optical support 20 and the rotating shaft 41. For example, the optical support 20 and the rotating shaft 41 can be connected with glue, and the friction between the rotating shaft 41 and the placement arc surface 33 is small. This allows the optical support 20 to achieve both stability and low rotational resistance when driven to rotate around the rotating shaft 41.

[0107] For details regarding the rotation of the optical support 20 by the first drive assembly 60, please refer to [the relevant documentation / reference]. Figure 4 The optical carrier 20 is driven by the first driving assembly 60 to rotate about the rotating shaft 41. The optical carrier 20 rotates between the first position B1 and the second position B2. The first position B1 and the second position B2 can respectively drive the optical carrier 20 to rotate counterclockwise and clockwise (within...) Figure 4 The position corresponding to the maximum angle of rotation (view of view). The optical carrier 20 can be driven to be located at any position between the first position B1 and the second position B2. The direction in which the first drive assembly 60 drives the optical carrier 20 to rotate about the rotation axis 41 is called the PITCH direction rotation (also known as the nodding direction).

[0108] Additionally, please refer to Figure 7 . Figure 7 In order to be in Figure 1 The cross-sectional view marked 7-7 shows the connection relationship between the rotating shaft, the side groove, and the rotating shaft placement groove. One end of the rotating shaft 41 is in substantial contact with the side groove 21; the other end is in substantial contact with the rotating shaft placement groove 31. Figure 7In the optical mount 20, one end of the rotating shaft 41 is in substantial contact with the side end wall 27. The end of the rotating shaft 41 near the frame 30 may be in substantial contact with the rotating shaft placement end wall 35, or a gap may be maintained between them. The size of this gap is preferably such that it does not affect the positioning between the frame 30 and the optical mount 20. For example, the distance (gap) between the side end wall 27 and the rotating shaft placement end wall 35 can create a positioning effect on the rotating shaft 41 such that the optical mount 20 can have a slight displacement relative to the frame 30 on the X-axis, and this slight displacement is not enough to affect the precision of the adjustable optical module.

[0109] Please refer to Figure 3 , Figure 4 and Figure 6 In some embodiments, the adjustable optical module further includes a shaft element 42. The shaft element 42 may be, but is not limited to, a cylindrical shaft or a ball bearing. The following description uses a cylindrical shaft as an example for the shaft element 42. The optical carrier 20 further includes a rear recess 22 (see...). Figure 6 ). Frame 30 further includes shaft element placement slot 32 (see Figure 3 ).At Figure 4 In this configuration, the shaft element 42 is located between the rear groove 22 and the shaft element placement groove 32. A gap 225 exists between the rear groove 22 and the shaft element 42. The size of this gap 225 can be changed as the optical support 20 rotates between the first position B1 and the second position B2. For example, the gap 225 is smallest when the optical support 20 is in the first position B1 and largest when it is in the second position B2. In this configuration, the shaft element 42 can act as a stop element for the maximum counterclockwise angle of rotation in the PITCH direction.

[0110] On the other hand, Figure 3 In this configuration, the shaft element placement slot 32 and the rotating shaft placement slot 31 are located on two adjacent side walls of the frame 30, respectively. The shaft element placement slot 32 is located on the frame side wall 302. The rotating shaft placement slot 31 is located on the frame side wall 301. In this way, the assembly structure of the adjustable optical module can also be compact.

[0111] Please refer to Figure 8 , Figure 9 and Figure 10 . Figure 8 A perspective view (II) of an adjustable optical module for some embodiments. Figure 9 In order to be in Figure 8 An exploded 3D view of the adjustable optical module. Figure 10 In order to be in Figure 8 The cross-sectional view marked 10-10 shows the driven rotational position of the frame.

[0112] According to one embodiment, an adjustable optical module includes an optical element 11, an optical carrier 20, a frame 30, a shaft element 42, a base 50, a plurality of intermediaries 80, and a drive assembly 60. The optical carrier 20 carries the optical element 11. The optical carrier 20 includes a rear recess 22. The frame 30 includes a shaft element placement slot 32 and a plurality of intermediary placement slots 34. The shaft element 42 is located in the rear recess 22 and the shaft element placement slot 32. Both ends of the shaft element 42 substantially contact the rear recess 22 and the shaft element placement slot 32. The base 50 includes a base plate 51 and a plurality of guide slots 53 located in the base plate 51. The intermediary placement slots 34, the guide slots 53, and the intermediaries 80 correspond to each other. Each intermediary 80 is located between a corresponding intermediary placement slot 34 and a guide slot 53, such that the frame 30 and the base 50 have a first position and a second position. The drive assembly 60 is used to drive the frame 30 to selectively occupy the first position and the second position. In this way, when the frame 30 is driven to rotate about one axis by the shaft element 42 and the drive assembly 60 (i.e., the second drive assembly 60'), the optical carrier 20 is also rotated. The rotation direction of the frame 30 is called the rotation in the YAW direction (also known as the head-shaking direction).

[0113] For detailed operation of the second drive component 60' and drive frame 30, please refer to... Figure 9 and Figure 10 The second drive assembly 60' includes a magnet 62', a coil 61', a position sensor 63', and a circuit board 64'. Figure 9 In this embodiment, the second drive assembly 60' includes two magnets 62', two coils 61', a position sensor 63', and two circuit boards 64'. The two magnets 62' are located on opposite sides of the frame 30. The coils 61' and circuit boards 64' are located on the base 50 at positions corresponding to the magnets 62'. Figure 10 In this configuration, the second drive assembly 60' drives the frame 30 selectively at the first frame position C1 and the second frame position C2. The first frame position C1 and the second frame position C2 can be the positions corresponding to the maximum angles of counterclockwise and clockwise rotation of the second drive assembly 60's drive frame 30 about axis P2 (in the +Y axis direction), respectively. The frame 30 can be driven to be located at any position between the first frame position C1 and the second frame position C2.

[0114] Please see Figure 11 , Figure 11 for Figure 8The diagram shows an exploded perspective view of the frame, base, and intermediary components. The base 50 includes a base plate 51 and a base receiving space 511. The base receiving space 511 accommodates the frame 30, the optical carrier 20, and the optical element 11. The base plate 51 of the base 50 has multiple guide grooves 53. The openings of the guide grooves 53 face the frame 30. The frame 30 includes multiple intermediary component placement slots 34. The openings of the intermediary component placement slots 34 face the base plate 51. The intermediary component placement slots 34, guide grooves 53, and intermediary components 80 correspond to each other. Each guide groove 53 corresponds to one intermediary component placement slot 34 and accommodates one intermediary component 80. The intermediary component 80 is located between the frame 30 and the base 50. The intermediary component 80 assists in the rotation of the frame 30 under the drive of the second drive assembly 60'. The intermediary component 80 can be a ball, a cylindrical roller, or a component with a rolling function. The following description uses a ball as the intermediary component 80.

[0115] Please refer to the positional relationship between the optical support 20, the shaft element 42, and the frame 30. Figure 12 . Figure 12 for Figure 8 The cross-sectional view marked 12-12 shows the positions of the shaft element, optical carrier, and frame. Similar to the description in the above embodiment, the shaft element 42 is located between the rear recess 22 of the optical carrier 20 and the shaft element placement slot 32 of the frame 30. The rear recess 22 includes a bottom 25 and a rear end wall 29 (see...). Figure 6 ).At Figure 12 In the rear recess 22, there is a gap 225 between the bottom 25 of the groove and the shaft element 42. Both ends of the shaft element 42 substantially contact the rear recess 22 and the shaft element placement groove 32. The rear end wall 29 substantially contacts both ends of the shaft element 42. The shaft element placement end wall 321 also substantially contacts both ends of the shaft element 42. In this way, the optical support 20 and the driven frame 30 can rotate synchronously in the YAW direction, preventing the optical support 20 from rotating only after the frame 30 has rotated a small angle.

[0116] Additionally, please see Figure 9In some embodiments, the adjustable optical module further includes a pivot 41. The optical carrier 20 further includes a side groove 21. The frame 30 further includes a pivot placement slot 31. The side groove 21, the pivot 41, and the pivot placement slot 31 correspond to each other. The pivot 41 is located between the side groove 21 and the pivot placement slot 31. The drive assembly 60 drives the optical carrier 20 to rotate about the pivot 41 as the rotation axis. The drive assembly 60 (i.e., the first drive assembly 60) drives the optical carrier 20 to rotate in the PITCH direction about the pivot 41 as the rotation axis in the same way as in the above embodiments, and will not be described again here. In this way, the adjustable optical module has two sets of drive assemblies 60 (the first drive assembly 60 and the second drive assembly 60'), which can adjust the rotation of the optical element 11 about two rotation axes (PITCH direction rotation and YAW direction rotation).

[0117] For details on maintaining the optical carrier 20 in a normal position, please refer to [link / reference]. Figure 13 and Figure 14 . Figure 13 for Figure 8 The cross-sectional view marked 13-13 shows the connection relationship between the optical support, the elastic element of the support, and the base. Figure 14 for Figure 8 The cross-sectional view marked 14-14 shows the positions of the shaft and shaft components. Please refer to this as well. Figure 9 In some embodiments, the adjustable optical module further includes a seat elastic member 70. The seat elastic member 70 is used to maintain the optical carrier 20 in a normal position. The seat elastic member 70 may be a spring or a resilient element. A first end 72 of the seat elastic member 70 is fixed to the optical carrier 20; a second end 75 of the seat elastic member 70 is fixed to the base 50. The seat elastic member 70 has a force that normally pushes the optical carrier 20 toward the pivot 41.

[0118] At Figure 13 In this configuration, the first end 72 of the seat elastic member 70 is connected to the outward protrusion 24. The second end 75 of the seat elastic member 70 is connected to the base 50. The distance H2 from the first end 72 to the surface of the base plate 51 is greater than the distance H5 from the second end 75 to the surface of the base plate 51; therefore, the seat elastic member 70 normally presses the optical carrier 20 against the base 50. Since the seat elastic member 70 maintains the optical carrier 20 in its normal position, this normal position can be a horizontal position for the optical carrier 20 or maintaining the optical carrier 20 at a predetermined tilt angle. The normal position is the stationary position where the optical carrier 20 is not driven by the first driving assembly 60 and is maintained solely by the seat elastic member 70. Figure 14 When the optical carrier 20 is placed horizontally on the frame 30 (i.e., the optical carrier 20 is in the aforementioned normal position), the concave arc surface 26 of the optical carrier 20 will contact the rotating shaft 41, but there is a preset gap between the rear groove 22 of the optical carrier 20 and the shaft element 42 (e.g., Figure 14 (gap 225).

[0119] In some embodiments, the seat elastic member 70 may be fixed to the optical carrier 20 with its first end 72 and to the frame 30 with its second end 75. Since the optical carrier 20 rotates in the PITCH direction relative to the frame 30, the seat elastic member 70 connecting the optical carrier 20 and the frame 30 also generally has the effects of the aforementioned embodiments.

[0120] Additionally, please refer to Figure 11 The guide groove 53 of the base 50 can be an arc-shaped groove 53a or a cylindrical groove 53b. Figure 11 In the design, the base 50 includes three guide grooves 53: an arc-shaped groove 53a and two cylindrical grooves 53b. Each guide groove 53 accommodates an intermediary member 80. The diameter of the cylindrical groove 53b is larger than the diameter of the corresponding intermediary member 80. The arc-shaped groove 53a has an arc-shaped track. The two straight lines from the two ends of the arc-shaped track to the rotation axis (axis P2) of the frame 30 form an arc angle α. The size of the arc angle α determines the length of the arc-shaped track. Thus, the arc-shaped groove 53a can limit the rotation of the frame 30 within a certain angular range. In some embodiments, the arc angle α is approximately 5 to 10 degrees.

[0121] Please refer to Figure 9 and Figure 10 In some embodiments, the adjustable optical module further includes a frame elastic member 90. The frame 30 includes a frame fixing portion 39. The base 50 includes a base fixing portion 59. Two ends of the frame elastic member 90 are fixed to the base fixing portion 59. The middle section of the frame elastic member 90 is fixed to the frame fixing portion 39. The frame elastic member 90 is used to stabilize the position of the frame 30. The frame elastic member 90 can be a spring or a resilient element. Figure 10 In the design, the base 50 includes two base fixing portions 59. A frame elastic member 90 is located between the frame sidewall 302 and the base 50. The frame fixing portions 39 are located in the middle of the frame sidewall 302. The distances from the frame fixing portions 39 to each base fixing portion 59 are approximately equal. In this way, when the frame 30 rotates in the YAW direction about axis P2, the tension on the frame 30 at both ends of the frame elastic member 90 is approximately the same, thus stabilizing the rotation axis position of the frame 30. Additionally, in some embodiments, the adjustable optical module may also include multiple frame elastic members 90, such as two or four, the number of which can be adjusted depending on the material of the frame elastic members 90. One end of each frame elastic member 90 is fixed to the frame fixing portion 39; the other end is fixed to the base fixing portion 59. The multiple frame elastic members 90 also have the following configuration: Figure 10 The functions described in the embodiments.

[0122] Please refer to Figure 15 and Figure 16 . Figure 15A perspective view (III) of an adjustable optical module according to some embodiments. Figure 16 for Figure 15 An exploded perspective view of the frame, central axis, and base of the embodiment.

[0123] According to one embodiment, the adjustable optical module includes an optical element 11, a frame 30, a base 50, a plurality of intermediaries 80, a central shaft 43, and a drive assembly 60. The frame 30 includes a plurality of sidewalls and a support plate 37. These sidewalls and support plate 37 form a frame receiving space 311. The optical element 11 is located in the frame receiving space 311. The support plate 37 has a plurality of intermediary placement slots 34 and a central shaft placement hole 38. The base 50 includes a base plate 51. The base plate 51 includes a plurality of guide grooves 53 and a central hole 54. The intermediary placement slots 34, the guide grooves 53, and the intermediaries 80 correspond to each other. Each intermediary 80 is located between a corresponding intermediary placement slot 34 and guide groove 53, such that the frame 30 and the base 50 have a first position and a second position. The central shaft 43 is located between the central shaft placement hole 38 and the central hole 54. A portion of the central shaft 43 located in the central shaft placement hole 38 is larger than a portion of the central shaft 43 located in the central hole 54. The drive assembly 60 is used to drive the frame 30 to selectively occupy the first position and the second position. In this way, the frame 30, driven by the second drive assembly 60', can rotate (in the YAW direction) around the central axis 43. The detailed operation of the YAW direction rotation of the frame 30 is roughly as described in the above embodiment and will not be repeated here. The relationship between the central axis 43, the frame 30, and the base 50 is described below.

[0124] Please refer to Figure 16 , Figure 17 and Figure 18 . Figure 17 In order to be in Figure 15 The cross-sectional view marked 17-17 shows the connection relationship between the central shaft, the central shaft mounting hole, and the central hole. Figure 18 for Figure 17 Enlarged view of position 18. Frame 30 includes a support plate 37, frame sidewalls 301 and 302, and a frame receiving space 311. Optical element 11 is located in the frame receiving space 311. The support plate 37 and frame sidewalls 301 and 302 can be integrally formed components or connected by a locking structure. The support plate 37 has multiple intermediate component placement slots 34 and a central shaft placement hole 38. The base plate 51 of the base 50 includes a central hole 54 and multiple guide slots 53. The central shaft 43 is located between the central shaft placement hole 38 and the central hole 54.

[0125] At Figure 17In this design, the central shaft 43 has an upper shaft portion 44, a convex ring 45, and a lower shaft portion 46. The convex ring 45 is located on the outer surface of the central shaft 43. One end of the convex ring 45 to the central shaft 43 is the upper shaft portion 44; the other end of the convex ring 45 to the central shaft 43 is the lower shaft portion 46. When the central shaft 43 is located between the central shaft mounting hole 38 and the central hole 54, the upper shaft portion 44 is located in the central shaft mounting hole 38, and the lower shaft portion 46 is located in the central hole 54. The convex ring 45 is in substantial contact with the surface of the base plate 51. Figure 18 In the middle, the length D1 of the upper shaft portion 44 is greater than or equal to the length D2 of the lower shaft portion 46. In this way, the convex ring 45 can support the position of the central shaft 43. The frame 30 is centered on the central shaft 43 (the axis of the central shaft 43 is...). Figure 16 When the central axis (P2) rotates in the YAW direction, the frame 30 has a substantial axis of rotation, which improves the stability of the frame 30's rotation. It should be noted that the optical support 20 has a clearance structure at the position corresponding to the central axis 43 (e.g., Figure 17 (Central recess 23). The recess 23 has a sufficient depth to accommodate the central shaft 43, so that the rotation of the optical support 20 is not hindered by the central shaft 43 in the PITCH direction. The intermediate component 80 and the support plate 37 can be made of metal to reduce the friction between the intermediate component 80 and the intermediate component placement groove 34 and to make the rotation of the frame 30 smoother.

[0126] Further, please refer to Figure 18 In some embodiments, the depth of the central shaft 43 within the central hole 54 is less than the depth of the central hole 54 within the base plate 51. For example... Figure 18 The length D2 of the lower shaft 46 is less than the length D3 of the center hole 54.

[0127] In some embodiments, the central shaft 43 is fixedly connected to the base plate 51 (e.g., the two are connected by glue, or the two are embedded injection molded elements), that is, there is no relative displacement between the central shaft 43 and the base 50, and the frame 30 rotates about the central shaft 43.

[0128] Additionally, please refer to Figure 16 In some embodiments, the guide groove 53 of the base 50 is a cylindrical groove 53b. The distance from each cylindrical groove 53b to the central hole 54 is substantially equal. Figure 16 Each guide groove 53 accommodates one intermediary member 80. The diameter of the cylindrical groove 53b is larger than the diameter of the corresponding intermediary member 80. Since the movable space of each intermediary member 80 in the cylindrical groove 53b is substantially equal, the intermediary member 80 is less likely to get stuck in the cylindrical groove 53b.

[0129] Please refer to Figure 19 and Figure 20 . Figure 19 exist Figure 15The cross-sectional view marked 19-19 shows the location of the opening and the base fixing part. Figure 20 for Figure 19 A perspective view (II) of the base of the embodiment. In some embodiments, the frame 30 further includes an opening 36. The opening 36 is located in the middle of the frame 30. The two ends of the frame elastic member 90 are fixed to the frame 30. The middle section of the frame elastic member 90 is engaged and fixed to the base 50. The position of the opening 36 corresponds to the middle section of the frame elastic member 90. In this way, because the frame sidewall 302 is provided with the opening 36, the installer can engage and fix the frame elastic member 90 to the base fixing part 59 through the opening 36, which facilitates assembly.

[0130] At Figure 19 In the frame 30, the side wall 302 includes an opening 36 and two frame fixing parts 39. The opening 36 is located in the middle of the side wall 302. The frame fixing parts 39 are located on both sides of the opening 36. Figure 20 In the middle, the base fixing part 59 is provided with a positioning protrusion 58. The middle section of the frame elastic member 90 is provided with a corresponding engaging part 95 for the positioning protrusion 58 (see...). Figure 16 ).

[0131] 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 appended claims.

Claims

1. An adjustable optical module, characterized in that, Include: An optical element; A frame comprising multiple sidewalls and a support plate, the sidewalls and the support plate forming an accommodating space, the optical element being located in the accommodating space, the support plate having multiple intermediary placement slots and a central axis placement hole; A base comprising a base plate having a plurality of guide grooves and a central hole; Multiple intermediary components, intermediary component placement slots, guide slots and corresponding intermediary components, each intermediary component being located between the corresponding intermediary component placement slot and the guide slot, so that the frame and the base have a first position and a second position; A central shaft is located between the central shaft placement hole and the central hole, wherein a portion of the central shaft located in the central shaft placement hole is larger than a portion of the central shaft located in the central hole; The central shaft has an upper shaft portion, a convex ring, and a lower shaft portion. The convex ring is located on the outer surface of the central shaft and is in substantial contact with the base plate. The upper shaft portion is located in the central shaft mounting hole, and the lower shaft portion is located in the central hole. A drive component is provided for driving the frame to selectively occupy the first position and the second position; wherein the intermediaries are used to assist the frame in rotating under the drive component.

2. The adjustable optical module as described in claim 1, characterized in that, Each of the guide grooves is a cylindrical groove with a diameter greater than that of the corresponding intermediate member, and the distance from each cylindrical groove to the central hole is substantially equal.

3. The adjustable optical module as described in claim 1, characterized in that, It further includes a frame elastic member, with its two ends fixed to the frame and its middle section fixed to the base.

4. The adjustable optical module as described in claim 3, characterized in that, The frame further includes an opening located in the middle of the frame, the opening being positioned corresponding to the middle section of the frame's elastic element, the middle section of which is engaged and fixed to the base.

5. The adjustable optical module as described in claim 1, characterized in that, It further includes an optical carrier and a rotating shaft. The optical carrier supports the optical element and includes a side groove. The frame further includes a rotating shaft placement slot. The rotating shaft is located between the side groove and the rotating shaft placement slot. The drive assembly drives the optical carrier to rotate around the rotating shaft as the rotation center.

6. The adjustable optical module as described in claim 5, characterized in that, It further includes a shaft element, the frame further includes a shaft element placement slot, the optical carrier further includes a rear recess, the shaft element is located between the rear recess and the shaft element placement slot, and the two ends of the shaft element substantially contact the rear recess and the shaft element placement slot.

7. The adjustable optical module as described in claim 5, characterized in that, It also includes an elastic element, with a first end of the elastic element fixed to the optical carrier and a second end of the elastic element fixed to the frame.

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