Focusing system

Abstract

The utility model provides a focusing system. The focusing system comprises a base, a first transmission wheel, a second transmission wheel, a transmission belt and an idle wheel set. The first transmission wheel and the second transmission wheel are arranged on the base. The first transmission wheel and the second transmission wheel are sleeved with the transmission belt, and the transmission belt forms an inner space with a belt interval. The idle wheel set comprises a plurality of idle wheels arranged between the first transmission wheel and the second transmission wheel.

Description

Technical Field

[0001] This utility model relates to a focusing system, and more particularly to a focusing system for an automated lens module. Background Technology

[0002] In the manufacturing process of lens modules, ensuring that the light beam passing through the lens is focused on the photoelectric sensor is crucial. If the focus of the light beam fails to fall on the photoelectric sensor, the sensor will only capture blurry image data. Generally, the focusing process of lens modules is performed manually, which is time-consuming and potentially lacks precision. Therefore, there is an urgent need to develop a focusing system for lens modules to achieve high image quality. Utility Model Content

[0003] In view of the shortcomings of the prior art, this utility model provides a focusing system for a lens module, which processes the lens module in an automated manner to enable the lens module to have high imaging quality.

[0004] According to one embodiment of the present invention, a focusing system is provided. The focusing system includes a base, a first drive wheel, a second drive wheel, a drive belt, and an idler pulley assembly. The first drive wheel and the second drive wheel are disposed on the base. The drive belt is sleeved on the first drive wheel and the second drive wheel, forming an internal space with a belt gap. The idler pulley assembly includes a plurality of idler pulleys disposed between the first drive wheel and the second drive wheel.

[0005] To provide a better understanding of the above and other aspects of this utility model, specific embodiments are described below in conjunction with the accompanying drawings: Attached Figure Description

[0006] Figure 1A This is a perspective view of a processing apparatus according to an embodiment of the present invention;

[0007] Figure 1B for Figure 1A A three-dimensional view of the processing device from another perspective;

[0008] Figure 2A A perspective view of a lens module before the dispensing process according to an embodiment of the present invention;

[0009] Figure 2B for Figure 2A An exploded view of the lens module;

[0010] Figure 2C for Figure 2A A 3D view of the lens module after the dispensing process;

[0011] Figure 3 A three-dimensional view of the focusing system;

[0012] Figure 4 Fig. 1 is a perspective view of a processing device 10 according to an embodiment of the present application. Figure 3 Fig. 2 is a partial exploded view of a focusing system of the processing device 10.

[0013] Figure 5A Fig. 3 is a partial top view of the focusing system before a focusing procedure. Figure 3 Fig. 4 is a partial top view of the focusing system during the focusing procedure.

[0014] Figure 5B Fig. 5 is a partial cross-sectional view of the focusing system. Figure 3 Fig. 6 is a partial cross-sectional view of the focusing system.

[0015] Figure 5C Fig. 7 is a partial top view of the focusing system during the focusing procedure. Figure 3 Fig. 8 is a partial top view of the focusing system during the focusing procedure.

[0016] Figure 5D Fig. 9 is a partial perspective view of the focusing system during the focusing procedure. Figure 3 Fig. 10 is a partial perspective view of the focusing system during the focusing procedure.

[0017] Figure 6 Fig. 11 is a focusing method of the focusing system according to an embodiment of the present application. DETAILED DESCRIPTION

[0018] The embodiments of the present application will be described in detail with reference to the drawings, wherein the same or similar components are denoted by the same reference numerals, and thus repeated explanations will be omitted. As those skilled in the art would realize, the various embodiments of the present application can be implemented in many different forms of hardware, software, or combination thereof; thereby, the following enumerated examples are to be considered as being illustrative of several ways by which the principles of the present application might be employed. Accordingly, the embodiments are not intended to be limited to the following enumerated examples.

[0019] Figure 1A Fig. 1 is a perspective view of a processing device 10 according to an embodiment of the present application. Figure 1B Fig. 2 is a partial exploded view of a focusing system of the processing device 10. Figure 1A Fig. 3 is a partial top view of the focusing system before a focusing procedure.

[0020] Fig. 4 is a partial top view of the focusing system during the focusing procedure. Figure 1A Fig. 5 is a partial cross-sectional view of the focusing system. 1B Fig. 6 is a partial cross-sectional view of the focusing system. Fig. 7 is a partial top view of the focusing system during the focusing procedure.

[0021] When the lens module 12 is processed by the processing device 10, the lens module 12 can be placed on the carrying module 161, and the driving motor of the driving system 16 drives the carrying module 161 and the lens module 12 to move to different workstations through the track 162 to perform corresponding processing. In an embodiment, the track 162 can be a straight path arranged in the Y direction (the first direction), that is, the carrying module 161 and the lens module 12 can move along the Y direction, but the present application is not limited thereto.

[0022] When the processing device 10 performs the focusing program of the lens module 12, the driving system 16 can drive the carrying module 161 and the lens module 12 to move from the starting position P0 to the position P2 corresponding to the focusing system 13, and perform the focusing program on the lens module 12 through the focusing system 13; after completing the focusing program, the driving system 16 can drive the carrying module 161 and the lens module 12 to move to the position P3 corresponding to the dispensing system 17, and perform the dispensing program through the dispensing system 17; after completing the dispensing program, the curing program is performed on the lens module 12 through the light irradiation system 19, and then the driving system 16 drives the carrying module 161 and the lens module 12 to return to the starting position P0. It should be understood that the driving system 16 can drive the carrying module 161 and the lens module 12 to move to any position in the entire track 162, and is not limited to the above-mentioned positions P0-P3.

[0023] In addition, in an embodiment, the processing device 10 can further include a height measuring system 11, which can be arranged at the position P1. Before the processing device 10 performs the focusing program of the lens module 12, the driving system 16 can first drive the carrying module 161 and the lens module 12 to move from the starting position P0 to the position P1, so that the height measuring system 11 can preliminarily measure the height of the lens module 12, and can record the distance between the object end of the lens module 12 and the reference height, wherein the reference height can be the contact surface of the carrying module 161 and the lens module 12.

[0024] In another embodiment, the processing device 10 can further include an inspection system 15. Before the lens module 12 completes the focusing program and performs the dispensing program, the driving system 16 can also drive the carrying module 161 and the lens module 12 to move from the position P2 to the position corresponding to the inspection system 15, so that the inspection system 15 can check whether the lens module 12 after completing the focusing program has dust, dirt and / or scratches, wherein the inspection system 15 can also be arranged at the position P1, but the present application is not limited thereto, and the height measuring system 11 and the inspection system 15 can also be arranged at other positions of the track 162.

[0025] Furthermore, the processing device 10 can further include a control center (not shown), and the carrying module 161 is electrically connected to the control center and the lens module 12.

[0026] Figure 2AThis is a perspective view of the lens module 12 before the dispensing process according to an embodiment of the present invention. Figure 2B for Figure 2A An exploded view of lens module 12. Figure 2C for Figure 2A A stereoscopic view of lens module 12 after the dispensing process.

[0027] like Figure 2A As shown, the lens module 12 may include a lens 120, a substrate 122, and a photoelectric sensor 124. The lens 120 is disposed on the substrate 122, and the photoelectric sensor 124 is fixed on the substrate 122 and disposed at the optical axis extension of the lens 120. Since the photoelectric sensor 124 of the lens module 12 can be electrically connected to the display device (not shown) of the control center through the carrier module 161, the control center can capture the real-time image of the light beam passing through the lens 120 through the photoelectric sensor 124 and thus synchronously observe the real-time image quality of the lens module 12.

[0028] Simultaneously refer to Figure 1A and Figure 1B Specifically, the processing device 10 further includes a detection chart CH, which is set in the positive Z direction (third direction) of the focusing system 13. The lens module 12 can maintain power throughout the focusing process and can capture images of the detection chart CH at a fixed frequency. It can also display the detection chart CH on a display device so that the image is clear or blurry in real time.

[0029] Simultaneously refer to Figures 2A to 2C Lens 120 may be a threaded lens, which may include an upper component 1201 and a lower component 1202, with the upper component 1201 partially housed in an annular groove of the lower component 1202. The upper component 1201 has a columnar structure and includes an optical lens. The upper component 1201 has an upper outer surface 1201s and a lower outer surface 1201sw, with the lower outer surface 1201sw being closer to the lower component 1201 than the upper outer surface 1201s. The diameter of the upper outer surface 1201s may be larger than the diameter of the lower outer surface 1201sw. The lower outer surface 1201sw may have a first threaded structure, and the inner surface 1202sw of the annular groove of the lower component 1202 has a second threaded structure corresponding to the first threaded structure. In one specific embodiment, the spacing SP1 between two adjacent threads on the lower outer surface 1201sw in the third direction of the Z direction can be between 0.25 mm and 2 mm. However, the present invention is not limited to this, and an appropriate spacing SP1 can also be set according to the size of the lens 120.

[0030] Before the dispensing process is performed, the upper part 1201 and the lower part 1202 of the lens 120 can be relatively rotated clockwise or counterclockwise. After the lens 120 completes the focusing process and is processed by the dispensing system 17 and the light irradiation system 19 through the dispensing process and the curing process, the upper part 1201 and the lower part 1202 are fixedly connected by the adhesive AH. The adhesive AH can be a photosensitive adhesive, including but not limited to UV adhesive, which can fix the upper part 1201 and the lower part 1202 after irradiation of a specific light beam.

[0031] Figure 3 A perspective view of the focusing system 13. Figure 4 A perspective view of the focusing system 13. Figure 3 A partial exploded view of the focusing system 13. Figure 5A A partial exploded view of the focusing system 13. Figure 3 A partial top view of the focusing system 13 before adjusting the focal length. Figure 5B A partial top view of the focusing system 13 before adjusting the focal length. Figure 3 A partial cross-sectional view of the focusing system 13. Figure 5C A partial top view of the focusing system 13 when adjusting the focal length. Figure 3 A partial top view of the focusing system 13 when adjusting the focal length. Figure 5D A partial top view of the focusing system 13 when adjusting the focal length. Figure 3 A partial perspective view of the focusing system 13 when adjusting the focal length.

[0032] Please refer to Figures 3 to 5B The focusing system 13 includes a base 130, a first transmission wheel 1321, a second transmission wheel 1322, and a transmission belt 134. The base 130 is disposed on the XY plane (the first plane), the first transmission wheel 1321 and the second transmission wheel 1322 are disposed on the base 130 along the X direction (the second direction), and the transmission belt 134 is sleeved on the first transmission wheel 1321 and the second transmission wheel 1322 so that the transmission belt 134 forms a belt spacing d in the Y direction, and the second transmission wheel 1322 rotates synchronously with the first transmission wheel 1321 through the transmission belt 134, wherein the positive Y direction of the transmission belt 134 is the first side SD1, and the negative Y direction of the transmission belt 134 is the second side SD2.

[0033] As shown in Figure 5A The base 130 has an opening 130u with a first side wall SW1, a second side wall SW2, a third side wall SW3, and a fourth side wall SW4 connected to each other, the first side wall SW1 is opposite to the third side wall SW3, the second side wall SW2 is opposite to the fourth side wall SW4, the first transmission wheel 1321 is adjacent to the first side wall SW1, and the second transmission wheel 1322 is adjacent to the third side wall SW3.

[0034] The focusing system 13 further comprises an idler wheel set 1360 and a jaw structure 138, the idler wheel set 1360 is disposed on the jaw structure 138, the jaw structure 138 is disposed on the base 130 and extends to the opening 130u. The idler wheel set 1360 comprises a plurality of idler wheels disposed between the first transmission wheel 1321 and the second transmission wheel 1322, the jaw structure 138 is disposed on the base 130 and extends to the opening 130u, wherein the jaw structure 138 comprises a first jaw arm 1381 adjacent to the second side wall SW2 and a second jaw arm 1382 adjacent to the fourth side wall SW4, and the plurality of idler wheels of the idler wheel set 1360 are respectively disposed on the first jaw arm 1381 and the second jaw arm 1382. In an embodiment, the idler wheel set 1360 comprises a first idler wheel 1361, a second idler wheel 1362, a third idler wheel 1363 and a fourth idler wheel 1364, the first idler wheel 1361 and the second idler wheel 1362 are disposed on the first jaw arm 1381, and the third idler wheel 1363 and the fourth idler wheel 1364 are disposed on the second jaw arm 1382, wherein the first idler wheel 1361 and the third idler wheel 1363 are adjacent to the first side wall SW1, and the second idler wheel 1362 and the fourth idler wheel 1364 are adjacent to the third side wall SW3.

[0035] The first jaw arm 1381 and the second jaw arm 1382 approach or move away from each other in the Y direction, so that the first idler wheel 1361 and the third idler wheel 1363 and the second idler wheel 1362 and the fourth idler wheel 1364 approach or move away from each other in the Y direction. The idler wheel set 1360 and the transmission belt 134 can be disposed in substantially the same XY plane, and once the first jaw arm 1381 and the second jaw arm 1382 approach each other to a distance less than the belt pitch d of the transmission belt 134, the transmission belt 134 is squeezed and the belt pitch d of the transmission belt 134 in the Y direction is shortened.

[0036] The focusing system 13 further comprises a first driving module 138C for driving the first jaw arm 1381 and the second jaw arm 1382 to approach or move away from each other in the Y direction, wherein the first driving module 138C can be a cylinder or a motor.

[0037] As Figure 5A and 5BAs shown, the first transmission wheel 1321 has a first cylindrical surface 1321SW and a plurality of first toothed structures TS1 disposed on the first cylindrical surface 1321SW; the transmission belt 134 has an inner surface 134ns and an outer surface 134ts, the inner surface 134ns has a plurality of second toothed structures TS2; the second transmission wheel 1322 has a second cylindrical surface 1322SW and a plurality of third toothed structures TS3 disposed on the second cylindrical surface 1322SW. The first toothed structures TS1 and the second toothed structures TS2 are in contact and engaged with each other to drive the transmission belt 134 to run, the transmission belt 134 is in contact and engaged with the third toothed structures TS3 via the second toothed structures TS2 to drive the second transmission wheel 1322 to rotate, wherein the first toothed structures TS1, the second toothed structures TS2 and the third toothed structures TS3 have substantially corresponding structures. In a specific embodiment, the first toothed structures TS1, the second toothed structures TS2 and the third toothed structures TS3 can be any one or a mixed configuration of trapezoidal structure, conical structure, triangular prism structure and hemispherical structure, but the present application is not limited thereto.

[0038] Referring to Figure 3 , Figure 4 and Figure 5B , according to an embodiment, the width WD1 of the transmission belt 134 in the Z direction can be between 4mm and 10mm. In another embodiment, the spacing SP2 between two adjacent second toothed structures TS2 on the transmission belt 134 can be between 0.1mm and 5mm. In still another embodiment, the transmission belt 134 can be made of a flexible material, such as rubber, plastic material or a compound or mixture of rubber and plastic material.

[0039] As shown in Figure 2B , Figure 5C and Figure 5DAs shown, the belt gap d of the inner surface 134ns of the transmission belt 134 can accommodate the upper component 1201 of the lens 120. By bringing the first clamping arm 1381 and the second clamping arm 1382 closer together and compressing the belt gap d of the transmission belt 134, the transmission belt 134 can contact the upper surface 1201s of the lens 120 through the second toothed structure TS2. Thus, the transmission belt 134 can be driven to rotate by the rotation of the first transmission wheel 1321, thereby rotating the upper component 1201 of the lens 120. The upper component 1201 is screwed together by the first thread structure and the second thread structure, thereby adjusting the relative distance in the Z direction between the upper component 1201 and the lower component 1202 of the lens 120, so as to achieve the purpose of focusing the lens module 12. For example, rotating the upper component 1201 clockwise on the drive belt 134 can reduce the relative distance between the upper component 1201 and the lower component 1202 in the Z direction; conversely, rotating the upper component 1201 counterclockwise can increase the relative distance between the upper component 1201 and the lower component 1202 in the Z direction, but the present invention is not limited thereto. In the focusing process, the drive belt 130 may have three second toothed structures TS2 contacting the upper surface 1201s of the lens 120 at positions adjacent to the first side SD1 and the second side SD2, but this is not intended to limit the present invention. The number of second toothed structures TS2 simultaneously contacting the upper surface 1201s can also be determined based on the contact area and friction between the second toothed structures TS2 and the upper surface 1201s.

[0040] like Figure 1A and 4 As shown, the focusing system 13 further includes a teleconverter 131 located in the positive Z direction of the base 130 and the drive belt 134. Specifically, the teleconverter 131 is positioned at position P2 and located in the negative Z direction of the detection chart CH. In the focusing procedure, the detection chart CH, the teleconverter 131, and the lens 120 can be coaxially arranged in the Z direction. The teleconverter 131 can be a lens group with at least one lens. The overall focal length of the lens 120 and the teleconverter 131 can be increased through the additive effect of the teleconverter 131.

[0041] like Figure 3 As shown, the focusing system 13 further includes a push block 1341, a base track 1342, and a second drive module 1341E. The push block 1341 is disposed on the base 130 and slidably disposed on the base track 1342, which extends along the Z direction. The second drive module 1341E can drive the push block 1341 to move the base 130 along the base track 1342 in the Z direction. Specifically, when the lens 120 moves to position P2 and is located in the negative Z direction of the opening 130u, the base 130 can move in the negative Z direction with the help of the push block 1341, so that the upper part 1201 of the lens 120 is in the internal space of the transmission belt 134.

[0042] The first transmission wheel 1321 is connected to the third driving module 1321E and can be rotated by the third driving module 1321E. The third driving module 1321E can be a servo motor, a motor or a servo-reduced motor, which can precisely control the rotation frequency of the first transmission wheel 1321.

[0043] Figure 6 The focusing method of the focusing system 13 according to an embodiment of the present application.

[0044] Please refer to Figure 1A , Figure 1B and Figures 3 to 6 , the focusing method of the focusing system 13 can include the following steps S101-S109.

[0045] As shown in step S101, the focusing system 13 is provided, for example, the focusing system 13 in the machining device 10.

[0046] As shown in step S103, the lens module 12 is provided, for example, the lens module 12 in the machining device 10.

[0047] As shown in step S105, the lens 120 is placed in the middle of the transmission belt 134. In specific embodiments, first, the lens module 12 is fixed on the carrier module 161, and the carrier module 161 is driven by the driving system 16 to drive the lens 120 to move towards the opening 130u; then, after the carrier module 161 and the lens 120 move to the negative Z direction of the opening 130u at position P2, the push block 1341 moves the base 130 in the negative Z direction to place the upper part 1201 of the lens 120 in the internal space of the transmission belt 134.

[0048] As shown in step S107, the first clamping arm 1381 and the second clamping arm 1382 are used to make the plurality of idler wheels of the idler wheel set 1360 close to the transmission belt 134 to clamp the upper part 1201 of the transmission belt 134.

[0049] As shown in step S109, the first transmission wheel 1361 is rotated clockwise or counterclockwise by the third driving module 1321E, so that the upper part 1201 is rotated by the transmission belt 134 and the first transmission wheel 1361 to adjust the distance between the upper part 1201 and the photoelectric sensor 124 in the Z direction, wherein the rotation of the first transmission wheel 1361 also causes the second transmission wheel 1362 to rotate by the transmission belt 134 and the first transmission wheel 1361.

[0050] In the process of rotating the upper part 1201 of the lens 120 by the first transmission wheel 1321 and the transmission belt 134, the distance between the upper part 1201 and the photoelectric sensor 124 in the Z direction also changes, and the photoelectric sensor 124 can capture the light beam penetrating the lens 120 at a constant frequency and transmit the image data to the display device of the control center to observe the image of the lens 120 in real time. Once the control center determines that the photoelectric sensor 124 captures the best image, the distance between the upper part 1201 and the photoelectric sensor 124 corresponding to the best image is defined.

[0051] For example, when the first transmission wheel 1321 starts to rotate clockwise, the photoelectric sensor 124 captures blurred image data. After the first transmission wheel 1321 keeps rotating in the same direction, the photoelectric sensor 124 captures gradually clear image data, and then starts to capture gradually blurred image data. It can be judged that the clearest image data is the best image, and the distance between the upper part 1201 and the photoelectric sensor 124 corresponding to the best image is the best height. Then, after the first transmission wheel 1321 rotates counterclockwise to make the upper part 1201 and the photoelectric sensor 124 return to the best height, the upper part 1201 and the lower part 1202 can be fixed.

[0052] The focusing system of the lens module 12 of the present application can process the lens module 12 in an automated manner. Compared with the manual processing manner, the focusing system of the lens module 12 of the present application can be more precise, can save labor cost and time, and the lens module 12 can have high imaging quality.

[0053] In summary, although the present application has been disclosed as above by embodiments, it is not intended to limit the present application. Those skilled in the art in the technical field of the present application can make various changes and modifications without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims

1. A focusing system, characterized by, The focusing system comprises: a base; a first transmission wheel disposed on the base; a second transmission wheel disposed on the base; a transmission belt sleeved on the first transmission wheel and the second transmission wheel, the transmission belt forming an internal space with a belt interval; and an idler wheel set comprising a plurality of idler wheels disposed between the first transmission wheel and the second transmission wheel.

2. The focusing system of claim 1, wherein The focusing system further comprises a jaw structure, the jaw structure comprising a first jaw arm and a second jaw arm.

3. The focusing system of claim 2, wherein The idler wheel set is disposed on the jaw structure.

4. The focusing system according to claim 2 or 3, wherein The idler wheel set comprises a first idler wheel, a second idler wheel, a third idler wheel and a fourth idler wheel, the first idler wheel and the second idler wheel being disposed on the first jaw arm, the third idler wheel and the fourth idler wheel being disposed on the second jaw arm.

5. The focusing system of claim 2 or 3, wherein The focusing system further comprises a first driving module driving the first jaw arm and the second jaw arm to move.

6. A focusing system as claimed in any one of claims 1 to 3, characterized in that The focusing system performs a focusing procedure on a lens module.

7. The focusing system of claim 6, wherein The lens module has an upper part, the upper part being disposed in the internal space of the transmission belt, the idler wheel set pressing the transmission belt and the transmission belt contacting the upper part.

8. The focusing system of claim 7, wherein, The transmission belt has an inner surface and a plurality of second tooth structures disposed on the inner surface, the transmission belt contacting the upper part through the second tooth structures.

9. A focusing system as claimed in any one of claims 1 to 3, characterized in that The first transmission wheel is connected to a third driving module.

10. A focusing system as claimed in any one of claims 1 to 3, characterized in that The focusing system further comprises a push block, a base track and a second driving module, the push block being disposed on the base, the push block being slidably disposed on the base track.

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