Adjustable optical module

Abstract

The present application discloses an adjustable optical module, which includes an optical element, an optical carrier, a frame, a shaft element, a base, a plurality of intermediates and a driving assembly. The optical carrier carries the optical element. The optical carrier includes a rear recess. The frame includes a shaft element placement slot and a plurality of intermediate placement slots. The shaft element is located in the rear recess and the shaft element placement slot. Two ends of the shaft element substantially contact the rear recess and the shaft element placement slot. The base includes a bottom plate and a plurality of guide slots, which are located on the bottom plate. The intermediate placement slots, the guide slots and the intermediates correspond to each other. Each intermediate is located between the corresponding intermediate placement slot and the guide slot, so that the frame and the base have a first position and a second position. The driving assembly is used to drive the frame to selectively locate in the first position and the second position.

Description

TECHNICAL FIELD

[0001] The present invention relates to electronic devices with adjustable optical modules, in particular, an adjustable optical module. BACKGROUND

[0002] With the development of technology, electronic products are increasingly pursuing a thin and light design and a high-quality photographic experience. At present, most electronic products are equipped with lens modules with shooting functions. However, in order to pursue high-quality shooting images, the structure of the lens module is not conducive to the thin and light design of the electronic product. Or, the electronic product has a poor focusing function. Or, the electronic product has a complicated assembly process. SUMMARY

[0003] In view of the above problems, according to an embodiment, an adjustable optical module includes an optical element, an optical carrier, a frame, a shaft element, a base, a plurality of intermediates, and a driving assembly. The optical carrier carries the optical element. The optical carrier includes a rear groove. The frame includes a shaft element placement slot and a plurality of intermediate placement slots. The shaft element is located in the rear groove and the shaft element placement slot. Both ends of the shaft element substantially contact the rear groove and the shaft element placement slot. The base includes a bottom plate and a plurality of guide slots, and the guide slots are located on the bottom plate. The intermediate placement slots, the guide slots, and the intermediates correspond to each other. Each intermediate is located between the corresponding intermediate placement slot and guide slot, so that the frame and the base have a first position and a second position. The driving assembly is used to drive the frame to selectively locate in the first position and the second position.

[0004] In some embodiments, there is a gap between the rear groove and the shaft element.

[0005] In some embodiments, at least one of the guide slots is an arc-shaped groove. The arc-shaped groove has an arc angle. The arc angle is about 5 to 10 degrees.

[0006] In some embodiments, at least one of the guide slots is a cylindrical groove. The diameter of the cylindrical groove is greater than the diameter of the corresponding intermediate.

[0007] In some embodiments, the adjustable optical module further includes a frame elastic member. The frame further includes a frame fixing portion. The base further includes two base fixing portions. Two ends of the frame elastic member are fixed to the two base fixing portions, respectively. The middle section of the frame elastic member is fixed to the frame fixing portion.

[0008] In some embodiments, the adjustable optical module further includes a plurality of frame elastic members. One end of each frame elastic member is fixed to the middle part of the frame, and the other end is fixed to the base.

[0009] In some embodiments, the adjustable optical module further comprises a rotation shaft. The optical carrier further comprises a side recess. The frame further comprises a rotation shaft placement slot. The side recess, the rotation shaft and the rotation shaft placement slot correspond to each other. The rotation shaft is located between the side recess and the rotation shaft placement slot. The driving assembly drives the optical carrier to rotate around the rotation shaft.

[0010] In some embodiments, one end of the rotation shaft substantially contacts the side recess; the other end of the rotation shaft substantially contacts the rotation shaft placement slot.

[0011] In some embodiments, the shaft element placement slot and the rotation shaft placement slot are respectively located on two adjacent side walls of the frame.

[0012] In some embodiments, the adjustable optical module further comprises a seat elastic member, and the base further comprises a base accommodation space. The frame and the optical carrier are located in the base accommodation space. A first end of the seat elastic member is fixed to the optical carrier; a second end of the seat elastic member is fixed to the base. The seat elastic member has a force to push the optical carrier towards the rotation shaft in a normal state.

[0013] In some embodiments, the distance from the first end of the seat elastic member to the bottom plate is greater than the distance from the second end of the seat elastic member to the bottom plate.

[0014] In some embodiments, when the optical carrier is maintained in a normal position by the force, there is a default gap between the rear recess and the shaft element.

[0015] In summary, according to an embodiment, when the driving assembly drives the frame to rotate around a shaft as the rotation axis, the optical carrier is also rotated by the shaft element. In some embodiments, through the rotation axis structure and the connection structure of the adjustable optical module, the adjustable optical module has good optical anti-shake compensation effect, compact structure and assembly convenience.

[0016] The detailed features and advantages of the present application are described in detail in the following embodiments, which are sufficient for any person skilled in the relevant art to understand the technical content of the present application and implement it. According to the content disclosed in the specification, the scope of claims and the drawings, any person skilled in the relevant art can easily understand the purposes and advantages related to the embodiments of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective view of the adjustable optical module of some embodiments (I).

[0018] Figure 2 It is a perspective view of the adjustable optical module of some embodiments (II). Figure 1 It is a perspective exploded view of the adjustable optical module shown.

[0019] Figure 3 It is a perspective view of the frame of some embodiments.

[0020] Figure 4 for Figure 1 The cross-sectional view marked 4-4 shows the connection relationship between the rotating shaft, frame and optical support.

[0021] 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.

[0022] Figure 6 This is a perspective view of an optical carrier according to some embodiments.

[0023] 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.

[0024] Figure 8 A perspective view (II) of an adjustable optical module for some embodiments.

[0025] Figure 9 for Figure 8 An exploded 3D view of the adjustable optical module shown.

[0026] Figure 10 for Figure 8 The cross-sectional view marked 10-10 shows the driven rotational position of the frame.

[0027] Figure 11 for Figure 8 An exploded three-dimensional view of the frame, base, and intermediate components shown.

[0028] Figure 12 for Figure 8 The cross-sectional view marked 12-12 shows the positions of the shaft element, optical support, and frame.

[0029] 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.

[0030] Figure 14 for Figure 8 The cross-sectional view marked 14-14 shows the position of the shaft and shaft components.

[0031] Figure 15 A perspective view (III) of an adjustable optical module according to some embodiments.

[0032] Figure 16 for Figure 15 An exploded three-dimensional view of the frame, central axis, and base shown.

[0033] Figure 17 forFigure 15 A cross-sectional view of the center mark 17-17 position, showing the connection relationship between the center axis, the center axis placement hole and the center hole.

[0034] Figure 18 For Figure 17 An enlarged view of the center mark 18 position.

[0035] Figure 19 For Figure 15 A cross-sectional view of the center mark 19-19 position, showing the position of the opening and the base fixing part.

[0036] Figure 20 For Figure 19 A perspective view of the base shown.

[0037] Wherein, the reference signs:

[0038] 11: optical element

[0039] 20: optical carrier

[0040] 21: side groove

[0041] 22: rear groove

[0042] 23: position avoidance groove

[0043] 24: outer convex part

[0044] 25: groove bottom

[0045] 26: inner concave curved surface

[0046] 27: side end wall

[0047] 29: rear end wall

[0048] 201, 202: carrier wall

[0049] 211: carrier space

[0050] 225: gap

[0051] 30: frame

[0052] 31: rotation shaft placement slot

[0053] 32: shaft element placement slot

[0054] 33: placement curved surface

[0055] 34: intermediate piece placement slot

[0056] 35: rotation shaft placement end wall

[0057] 36: opening

[0058] 37: support plate

[0059] 38: central shaft placement hole

[0060] 39: frame fixing portion

[0061] 301, 302: frame side wall

[0062] 311: frame accommodating space

[0063] 321: shaft element placement end wall

[0064] 41: rotating shaft

[0065] 42: shaft element

[0066] 43: central shaft

[0067] 44: upper shaft portion

[0068] 45: convex ring

[0069] 46: lower shaft portion

[0070] 50: base

[0071] 51: bottom plate

[0072] 53: guide groove

[0073] 53a: arc-shaped groove

[0074] 53b: cylindrical groove

[0075] 54: central hole

[0076] 58: positioning protrusion

[0077] 59: base fixing portion

[0078] 511: base accommodating space

[0079] 60, 60’: drive assembly

[0080] 61, 61’: coil

[0081] 62, 62’, 62a, 62b: magnet

[0082] 63, 63’: position sensor

[0083] 64, 64’: circuit board

[0084] 65: magnetic conducting element

[0085] P1, P2: shaft

[0086] a: arc angle

[0087] C1: first frame position

[0088] C2: Second frame position

[0089] 70: Seat elastic element

[0090] 72: First end

[0091] 75: Second End

[0092] 80: Intermediary documents

[0093] 90: Frame elastic element

[0094] 95: Card-connecting section

[0095] D1, D2, D3: Length

[0096] R3, R2: Radius of curvature

[0097] R4: Radius

[0098] B1: First seat

[0099] B2: Second seat

[0100] L, L': Light rays

[0101] H2, H5: Distance

[0102] O1, O2: Overlapping positions Detailed Implementation

[0103] The following figures are provided to illustrate the various embodiments of the present invention more clearly.

[0104] 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 shown. 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.

[0105] 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.

[0106] 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.

[0107] 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.

[0108] 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 5 The 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.

[0109] 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 axis P1) is the rotation axis, rotating clockwise or counterclockwise. Detailed operations of the optical carrier 20's rotation will be explained 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 carrier 20 to rotate about a first axis is called the first drive component. The first axis and the second axis are substantially perpendicular. The drive component 60 that drives the frame 30 to rotate about a second axis is called the second drive component. The detailed operations of the drive components 60 on the two axes will be explained below using the first drive component and the second drive component as examples. The first drive component is denoted by component symbol 60, and the second drive component by component symbol 60'.

[0110] Specifically, at Figure 3In 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.

[0111] On the other hand, please refer to Figure 2 and Figure 6 . Figure 6 This 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.

[0112] 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 substantially 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.

[0113] For details regarding the rotation of the optical support 20 by the first drive assembly 60, please refer to [the relevant documentation / reference]. Figure 4The optical carrier 20 is driven by the first driving assembly 60 to rotate around the rotation axis 41. The optical carrier 20 rotates between a first seat position B1 and a second seat position B2. The first seat position B1 and the second seat position B2 can be positions corresponding to the maximum angles of the optical carrier 20 rotating counterclockwise and clockwise (in the view angle of Figure 4 ) respectively, driven by the first driving assembly 60. The optical carrier 20 can be driven to be at any position between the first seat position B1 and the second seat position B2. The direction in which the first driving assembly 60 drives the optical carrier 20 to rotate around the rotation axis 41 is referred to as the PITCH direction rotation (also referred to as the nodding direction).

[0114] In addition, please refer to Figure 7 . Figure 7 In order to prevent the optical carrier 20 from rotating around the rotation axis 41 beyond the first seat position B1 and the second seat position B2, the optical carrier 20 is provided with a rotation limiting mechanism. The rotation limiting mechanism comprises a rotation limiting element 40 and a rotation limiting slot 23. The rotation limiting element 40 is substantially in contact with the rotation limiting slot 23 when the optical carrier 20 is at the first seat position B1 and the second seat position B2. The rotation limiting element 40 can be a cylindrical shaft or a spherical ball. The rotation limiting slot 23 is formed on the side wall 27 of the optical carrier 20. The rotation limiting slot 23 is substantially in contact with the rotation limiting element 40 when the optical carrier 20 is at the first seat position B1 and the second seat position B2. The rotation limiting element 40 is substantially in contact with the rotation limiting slot 23 when the optical carrier 20 is at the first seat position B1 and the second seat position B2. Figure 1 The cross-sectional view of the position 7-7 is shown in FIG. 7. The connection relationship between the rotation axis, the side slot and the rotation axis placement slot is shown. One end of the rotation axis 41 is substantially in contact with the side slot 21; the other end is substantially in contact with the rotation axis placement slot 31. In the embodiment, the end of the rotation axis 41 close to the optical carrier 20 is substantially in contact with the side end wall 27. The end of the rotation axis 41 close to the frame 30 can be substantially in contact with the rotation axis placement end wall 35 or there can be a gap between them. The size of the gap is preferably such that it does not affect the positioning between the frame 30 and the optical carrier 20. For example, the positioning effect of the distance (gap) between the side end wall 27 and the rotation axis placement end wall 35 on the rotation axis 41 can be that the optical carrier 20 can slightly move on the X axis relative to the frame 30, and the slight displacement does not affect the precision of the adjustable optical module. Figure 7 Please refer to

[0115] , Figure 3 and Figure 4 . In some embodiments, the adjustable optical module further comprises a shaft element 42. The shaft element 42 can be, but is not limited to, a cylindrical shaft or a spherical ball. The following description takes the shaft element 42 as a cylindrical shaft as an example. The optical carrier 20 further comprises a rear slot 22 (shown in Figure 6 ). The frame 30 further comprises a shaft element placement slot 32 (shown in Figure 6 ). In the embodiment, the shaft element 42 is located between the rear slot 22 and the shaft element placement slot 32. There is a gap 225 between the rear slot 22 and the shaft element 42. The size of the gap 225 can change as the optical carrier 20 rotates between the first seat position B1 and the second seat position B2. For example, when the optical carrier 20 is at the first seat position B1, the gap 225 is the smallest; when the optical carrier 20 is at the second seat position B2, the gap 225 is the largest. In this way, the shaft element 42 can serve as a stop component for the maximum counterclockwise angle of the PITCH direction rotation. Figure 3 Figure 4

[0116] ​​In another aspect, the optical module is a tunable optical module. Figure 3 In another aspect, the shaft element placement slot 32 and the rotation shaft placement slot 31 are located at two adjacent side walls of the frame 30. The shaft element placement slot 32 is located at the side wall 302. The rotation shaft placement slot 31 is located at the side wall 301. In this way, the assembly structure of the tunable optical module can also be compact.

[0117] Please refer to Figure 8 , Figure 9 and Figure 10 . Figure 8 is a perspective view of the tunable optical module of some embodiments (II). Figure 9 is a perspective exploded view of the tunable optical module shown in Figure 8 . Figure 10 is a cross-sectional view of the tunable optical module shown in Figure 8 , showing the driven rotation position of the frame.

[0118] According to an embodiment, the tunable optical module comprises an optical element 11, an optical carrier 20, a frame 30, a shaft element 42, a base 50, a plurality of intermediates 80, and a driving assembly 60. The optical carrier 20 carries the optical element 11. The optical carrier 20 comprises a rear recess 22. The frame 30 comprises a shaft element placement slot 32 and a plurality of intermediate placement slots 34. The shaft element 42 is located in the rear recess 22 and the shaft element placement slot 32. The two ends of the shaft element 42 substantially contact the rear recess 22 and the shaft element placement slot 32. The base 50 comprises a bottom plate 51 and a plurality of guide slots 53 located on the bottom plate 51. The plurality of intermediate placement slots 34, the plurality of guide slots 53, and the plurality of intermediates 80 correspond to each other. Each intermediate 80 is located between the corresponding intermediate placement slot 34 and guide slot 53, so that the frame 30 and the base 50 have a first position and a second position. The driving assembly 60 is used to drive the frame 30 to selectively locate in the first position and the second position. In this way, when the driving assembly 60 (i.e., the second driving assembly 60') drives the frame 30 to rotate around an axis as a rotation axis through the shaft element 42, the optical carrier 20 is also rotated. The rotation direction of the frame 30 is called YAW direction rotation (also called pan direction).

[0119] The detailed action of the second driving assembly 60' driving the frame 30 please refer to Figure 9 and Figure 10 . The second driving assembly 60' comprises a magnet 62', a coil 61', a position sensor 63', and a circuit board 64'. In Figure 9 embodiments, the second driving assembly 60' comprises two magnets 62', two coils 61', one position sensor 63', and two circuit boards 64'. The two magnets 62' are located on the two sides of the frame 30, respectively. The coil 61' and the circuit board 64' are located on the base 50 at positions corresponding to the magnet 62'. In Figure 10In 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.

[0120] Please see Figure 11 , Figure 11 for Figure 8 The 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.

[0121] 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.

[0122] Additionally, please see Figure 9In some embodiments, the adjustable optical module further comprises a rotation shaft 41. The optical carrier 20 further comprises a side recess 21. The frame 30 further comprises a rotation shaft placement slot 31. The side recess 21, the rotation shaft 41 and the rotation shaft placement slot 31 correspond to each other. The rotation shaft 41 is located between the side recess 21 and the rotation shaft placement slot 31. The driving assembly 60 drives the optical carrier 20 to rotate around the rotation shaft 41. The driving assembly 60 (i.e. the first driving assembly 60) drives the optical carrier 20 to rotate around the rotation shaft 41 in the PITCH direction, which is substantially the same as the above-mentioned embodiments, and thus is not described herein. In this way, the adjustable optical module has two sets of driving assemblies 60 (the first driving assembly 60 and the second driving assembly 60'), which can adjust the rotation of the optical element 11 around two rotation axes (the PITCH direction rotation and the YAW direction rotation).

[0123] The details of maintaining the optical carrier 20 in a normal position are described in Figure 13 and Figure 14 . Figure 13 The details of maintaining the optical carrier 20 in a normal position are described in Figure 8 , which is a cross-sectional view of the position indicated by 13-13 in Figure 14 , which is a cross-sectional view of the position indicated by 14-14 in Figure 8 , which is a cross-sectional view of the position indicated by 14-14 in Figure 9 In some embodiments, the adjustable optical module further comprises a seat elastic member 70. The seat elastic member 70 maintains the optical carrier 20 in a normal position. The seat elastic member 70 can be a spring or an elastic component. The first end 72 of the seat elastic member 70 is fixed to the optical carrier 20, and the second end 75 of the seat elastic member 70 is fixed to the base 50. The seat elastic member 70 has a force to normally push the optical carrier 20 towards the rotation shaft 41.

[0124] In Figure 13 , the first end 72 of the seat elastic member 70 is connected to the outer protruding portion 24, and 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 bottom plate 51 is greater than the distance H5 from the second end 75 to the surface of the bottom plate 51. Therefore, the seat elastic member 70 normally presses the optical carrier 20 towards the base 50, so that the optical carrier 20 is maintained in a normal position, which can be a horizontal position of the optical carrier 20 or a predetermined inclination angle of the optical carrier 20. The normal position is a static position of the optical carrier 20 maintained by the seat elastic member 70 without being driven by the first driving assembly 60. In Figure 14 , when the optical carrier 20 is placed on the frame 30 in a horizontal manner (i.e. the optical carrier 20 is in the above-mentioned normal position), the inner concave curved surface 26 of the optical carrier 20 contacts the rotation shaft 41, but there is a default gap between the rear recess 22 of the optical carrier 20 and the shaft element 42 (as shown in Figure 14gap 225) in the optical carrier 20.

[0125] In addition, in some embodiments, the seat spring 70 can be fixed at the first end 72 to the optical carrier 20 and at the second end 75 to the frame 30. Since the optical carrier 20 is rotated in the PITCH direction relative to the frame 30, the seat spring 70 connected to the optical carrier 20 and the frame 30 also has the same effect as the aforementioned embodiments.

[0126] In addition, please refer to Figure 11 The guide slot 53 of the base 50 can be an arc-shaped groove 53a or a cylindrical groove 53b. In Figure 11 , the base 50 includes three guide slots 53, one arc-shaped groove 53a and two cylindrical grooves 53b. Each guide slot 53 accommodates one intermediate member 80. The diameter of the cylindrical groove 53b is greater than the diameter of the corresponding intermediate member 80. The arc-shaped groove 53a has an arc-shaped track. The two ends of the arc-shaped track to the two straight lines of 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. In this way, the arc-shaped groove 53a can limit the rotation of the frame 30 within a certain angle range. In some embodiments, the arc angle α is about 5 to 10 degrees.

[0127] Please refer to Figure 9 and Figure 10 In some embodiments, the adjustable optical module further includes a frame spring 90. The frame 30 includes a frame fixing portion 39. The base 50 includes a base fixing portion 59. Two ends of the frame spring 90 are fixed to the base fixing portion 59. The middle section of the frame spring 90 is fixed to the frame fixing portion 39. The frame spring 90 is used to stabilize the position of the frame 30. The frame spring 90 can be a leaf spring or a component with elasticity. In Figure 10 , the base 50 includes two base fixing portions 59. The frame spring 90 is located between the frame side wall 302 and the base 50. The frame fixing portion 39 is located in the middle of the frame side wall 302. The distance from the frame fixing portion 39 to each base fixing portion 59 is substantially equal. In this way, when the frame 30 rotates in the YAW direction about the axis P2, the pulling force of the two ends of the frame spring 90 on the frame 30 is substantially the same, so as to stabilize the position of the rotation axis of the frame 30. In addition, in some embodiments, the adjustable optical module can also include a plurality of frame springs 90, for example, 2 or 4, the number of which can be adjusted according to the material of the frame spring 90. One end of each frame spring 90 is fixed to the frame fixing portion 39; the other end is fixed to the base fixing portion 59. The plurality of frame springs 90 also have the functions as described in the Figure 10 embodiments.

[0128] Please refer to Figure 15 and Figure 16 . Figure 15 is a perspective view of the adjustable optical module of some embodiments (three).Figure 16 For Figure 15 A perspective exploded view of the frame, central shaft and base of an embodiment.

[0129] According to an embodiment, the adjustable optical module includes an optical element 11, a frame 30, a base 50, a plurality of intermediates 80, a central shaft 43 and a driving assembly 60. The frame 30 includes a plurality of side walls and a support plate 37. The side walls and the 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 intermediate placement slots 34 and a central shaft placement hole 38. The base 50 includes a bottom plate 51. The bottom plate 51 includes a plurality of guide slots 53 and a central hole 54. The intermediate placement slots 34, the guide slots 53 and the intermediates 80 correspond to each other. Each intermediate 80 is located between the corresponding intermediate placement slot 34 and the guide slot 53, so 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. The part of the central shaft 43 located in the central shaft placement hole 38 is larger than the part of the central shaft 43 located in the central hole 54. The driving assembly 60 is used to drive the frame 30 to selectively locate in the first position and the second position. The distance from the first position to the central shaft 43 is equal to the distance from the second position to the central shaft 43. In this way, the frame 30 driven by the second driving assembly 60' can rotate around the central shaft 43 (YAW direction rotation). The details of the YAW direction rotation of the frame 30 are substantially as described above, and will not be described again. The relationship between the central shaft 43, the frame 30 and the base 50 is described below.

[0130] Please refer to Figure 16 , Figure 17 and Figure 18 . Figure 17 For the cross-sectional view of the position 17-17 in Figure 15 , showing the connection relationship between the central shaft, the central shaft placement hole and the central hole. Figure 18 For Figure 17 the enlarged view of the position 18. The frame 30 includes a support plate 37, frame side walls 301, 302, and a frame receiving space 311. The optical element 11 is located in the frame receiving space 311. The support plate 37 and the frame side walls 301, 302 can be an integrally formed component or a component connected by a locking structure. The support plate 37 has a plurality of intermediate placement slots 34 and a central shaft placement hole 38. The bottom plate 51 of the base 50 includes a central hole 54 and a plurality of guide slots 53. The central shaft 43 is located between the central shaft placement hole 38 and the central hole 54.

[0131] In Figure 17In some embodiments, the center 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 center shaft 43. The convex ring 45 is connected to the upper shaft portion 44 at one end of the center shaft 43, and is connected to the lower shaft portion 46 at the other end of the center shaft 43. When the center shaft 43 is located between the center shaft placement hole 38 and the center hole 54, the upper shaft portion 44 is located in the center shaft placement hole 38, and the lower shaft portion 46 is located in the center hole 54. The convex ring 45 substantially contacts the surface of the base plate 51. In some embodiments, the convex ring 45 is located in the center hole 54. Figure 18 In some embodiments, 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 center shaft 43. When the frame 30 rotates in the YAW direction with the center shaft 43 (the axis of the center shaft 43 is the axis P2) as the rotation axis, the frame 30 has a substantial rotation axis, which can improve the stability of the rotation of the frame 30. It should be noted that the optical support 20 has an avoidance structure (such as the avoidance groove 23) corresponding to the position of the center shaft 43. The inner recess depth of the avoidance groove 23 is sufficient to accommodate the center shaft 43, so that the rotation of the optical support 20 will not be hindered by the center shaft 43 to make the PITCH direction rotation. The material of the intermediate member 80 and the support plate 37 can be metal, so that the friction between the intermediate member 80 and the intermediate member placement groove 34 is small, and the rotation of the frame 30 is smooth. Figure 16 Figure 17 Further, please refer to In some embodiments, the depth of the center shaft 43 located in the center hole 54 is less than the depth of the center hole 54 in the base plate 51. As shown in

[0132] , the length D2 of the lower shaft portion 46 is less than the length D3 of the center hole 54. In this way, the center shaft 43 is in a suspended state in the center hole 54, so as to reduce the rotation resistance of the center hole 54 to the frame 30. Figure 18 Figure 18 In addition, please refer to 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 center hole 54 is substantially equal. In some embodiments, each guide groove 53 accommodates an intermediate member 80. The diameter of the cylindrical groove 53b is greater than the diameter of the corresponding intermediate member 80. Since the movable space of each intermediate member 80 in the cylindrical groove 53b is substantially equal, the intermediate member 80 is less likely to be stuck in the cylindrical groove 53b.

[0133] Figure 16 Please refer to Figure 16 and .

[0134] In Figure 19 , the cross-sectional view shown at positions 19-19 shows the position of the opening and the base fixing portion. Figure 20 is Figure 19 Figure 15 In some embodiments, the depth of the center shaft 43 located in the center hole 54 is less than the depth of the center hole 54 in the base plate 51. As shown in Figure 20 , the length D2 of the lower shaft portion 46 is less than the length D3 of the center hole 54. In this way, the center shaft 43 is in a suspended state in the center hole 54, so as to reduce the rotation resistance of the center hole 54 to the frame 30. 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.

[0135] 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 ).

[0136] Additionally, please refer to Figure 18 In some embodiments, the adjustable optical module further includes a magnetically conductive element 65. The magnetically conductive element 65 may be a sheet of iron. The drive assembly 60 includes a magnet 62. Figure 18 In this configuration, the magnet 62 of the first driving assembly 60 is located at the bottom of the optical carrier 20. The coil 61 and circuit board 64 of the first driving assembly 60 are located on the base plate 51. The base plate 51 is located between the magnetic conductive element 65 and the magnet 62. A portion of the area of ​​the magnet 62 corresponds to a portion of the area of ​​the magnetic conductive element 65. There is a magnetic attraction between the magnetic conductive element 65 and the magnet 62, which holds the optical carrier 20 in its normal position. This normal position is as described in the above embodiment and will not be repeated here. In addition, the magnetic conductive element 65 can also enhance the electromagnetic interaction between the magnet 62 and the coil 61 of the first driving assembly 60, thereby increasing the driving force of the first driving assembly 60 on the optical carrier 20.

[0137] like Figure 18 The first drive assembly 60 includes two magnets 62a and 62b. These two magnets 62a and 62b are located on both sides of the recess 23 of the optical carrier 20. A portion of the magnetic conductive element 65 and a portion of the magnet 62a have an overlap position O1 on the X-axis. A portion of the magnetic conductive element 65 and a portion of the magnet 62b have an overlap position O2 on the X-axis. In this way, the magnetic conductive element 65 and the magnet 62b have sufficient magnetic attraction to stabilize the optical carrier 20 in its normal position without affecting the smoothness of the rotation of the optical carrier 20.

[0138] Although the present application has been disclosed with reference to the above embodiments, the above embodiments are not intended to limit the present application, and any person skilled in the art can make some changes and modifications without departing from the spirit and scope of the present application, and therefore the patent protection scope of the present application should be defined by the appended claims.

[0139] Of course, the present application can have other various embodiments, and those skilled in the art can make various corresponding changes and modifications according to the present application without departing from the spirit and essence of the present application, but these corresponding changes and modifications should all belong to the protection scope of the claims of the present application.

Claims

1. An adjustable optical module, characterized in that, Include: An optical element; An optical carrier for supporting the optical element, the optical carrier including a rear recess; A frame, comprising a component placement slot for a single axis and multiple intermediate component placement slots; A shaft element is located between the rear groove and the shaft element placement groove, with both ends of the shaft element substantially in contact with the rear groove and the shaft element placement groove; A base comprising a bottom plate and a plurality of guide grooves located on the bottom plate; Multiple intermediary components, the intermediary component placement slot, the guide slot and the intermediary component are corresponding to each other, each intermediary component is located between the corresponding intermediary component placement slot and the guide slot, so that the frame and the base have a frame first position and a frame second position. as well as A driving component is used to drive the frame to selectively be located in a first position and a second position of the frame; wherein the plurality of mediators are used to assist the frame in rotating under the drive of the driving component.

2. The adjustable optical module according to claim 1, characterized in that, There is a gap between the rear groove and the shaft element.

3. The adjustable optical module according to claim 1, characterized in that, At least one of the guide grooves is an arc-shaped groove having an arc angle of approximately 5 to 10 degrees.

4. The adjustable optical module according to claim 1, characterized in that, At least one of the guide grooves is a cylindrical groove, the diameter of which is larger than the diameter of the corresponding intermediate.

5. The adjustable optical module according to claim 1, characterized in that, It further includes a frame elastic member, the frame further includes a frame fixing part, the base further includes two base fixing parts, the two ends of the frame elastic member are respectively fixed to the two base fixing parts, and the middle section of the frame elastic member is fixed to the frame fixing part.

6. The adjustable optical module according to claim 1, characterized in that, It also includes multiple frame elastic members, each of which has one end fixed to the middle of the frame and the other end fixed to the base.

7. The adjustable optical module according to claim 1, characterized in that, It further includes a rotating shaft, the optical carrier further includes a side groove, the frame further includes a rotating shaft placement groove, the side groove, the rotating shaft and the rotating shaft placement groove correspond to each other, the rotating shaft is located between the side groove and the rotating shaft placement groove, and the driving component drives the optical carrier to rotate around the rotating shaft as the rotation axis.

8. The adjustable optical module according to claim 7, characterized in that, One end of the rotating shaft is in substantial contact with the side groove, and the other end of the rotating shaft is in substantial contact with the rotating shaft placement groove.

9. The adjustable optical module according to claim 7, characterized in that, The shaft component placement slot and the rotating shaft placement slot are located on adjacent side walls of the frame, respectively.

10. The adjustable optical module according to claim 7, characterized in that, It further includes an elastic member, and the base further includes a base receiving space. The frame and the optical carrier are located in the base receiving space. A first end of the elastic member is fixed to the optical carrier, and a second end of the elastic member is fixed to the base. The elastic member includes a force that normally pushes the optical carrier toward the pivot.

11. The adjustable optical module according to claim 10, characterized in that, The distance from the first end of the elastic member to the base plate is greater than the distance from the second end of the elastic member to the base plate.

12. The adjustable optical module according to claim 10, characterized in that, When the force holds the optical carrier in a normal position, there is a default gap between the rear groove and the shaft element.

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