Processing device

Abstract

The utility model discloses a processing device. The processing device comprises a driving system, a focusing system, a dispensing system and an irradiation system, the driving system comprises a bearing module and a track, the focusing system comprises a first transmission wheel, a second transmission wheel and a transmission belt, the dispensing system comprises a dispensing assembly, and the illumination system comprises a light source group.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of processing devices, and particularly related to a kind of processing device of automatic lens module processing. BACKGROUND

[0002] In the process of assembling lens module, it must be ensured that the lens imaging of lens module falls on photoelectric sensor, and then the lens module is carried out glue dispensing procedure and curing procedure. By this, the light beam penetrating the lens can be focused on photoelectric sensor, to ensure that lens module can maintain clear image. Generally, the process of processing lens module is carried out by artificial way, which is quite time-consuming and may not be precise enough. Therefore, a lens module processing device is needed to provide lens module with high imaging quality. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model provides a lens module processing device to process lens module in an automated manner, so that lens module has high imaging quality.

[0004] According to an embodiment of the utility model, a processing device is provided. The processing device includes a driving system, a focusing system, a glue dispensing system and a light irradiation system. The driving system includes a bearing module and a track, the focusing system includes a first transmission wheel, a second transmission wheel and a transmission belt, the glue dispensing system includes a glue dispensing assembly, and the light irradiation system includes a light source group.

[0005] Among them, the driving system is a linear module.

[0006] Among them, the bearing module includes a seat body, a turntable and a first driving module, the seat body is arranged on the turntable, and the first driving module drives the turntable to rotate.

[0007] Among them, the focusing system further includes an idler wheel set, the transmission belt is sleeved on the first transmission wheel and the second transmission wheel, and the idler wheel set is arranged between the first transmission wheel and the second transmission wheel.

[0008] Among them, the transmission belt has an inner surface and a plurality of second toothed structures arranged on the inner surface.

[0009] Among them, the glue dispensing system is a fixed-point glue dispensing system, an arc-shaped glue dispensing system, a circumferential glue dispensing system or a complex glue dispensing system.

[0010] Among them, the light irradiation system further includes a fixing member, and the light source group is arranged on the bottom surface of the fixing member.

[0011] Among them, the fixing member has a through hole, and the light source group is arranged on the circumference of the through hole.

[0012] Among them, the processing device further includes a height measuring system, and the height measuring system includes a camera and a screen.

[0013] The processing device further comprises an inspection system, the inspection system comprising a cover and a fixing plate, the cover being arranged on the fixing plate.

[0014] For the above and other aspects of the present application, the following embodiments are described in detail below, and the drawings are as follows: BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1A A perspective view of a processing device according to an embodiment of the present application is shown.

[0016] Figure 1B A perspective view of another view of the processing device of Figure 1A is shown.

[0017] Figure 1C A partial exploded view of a focusing system is shown.

[0018] Figure 1D A partial top view of the focusing system is shown.

[0019] Figure 1E A perspective view of a dispensing system and a light system is shown.

[0020] Figure 1F A perspective view of a lens module performing a height measurement procedure with the aid of a height measurement system is shown.

[0021] Figure 1G A perspective view of the lens module performing an inspection procedure with the aid of an inspection system is shown.

[0022] Figure 2A A perspective view of the lens module before a dispensing procedure according to an embodiment of the present application is shown.

[0023] Figure 2B An exploded view of the lens module of Figure 2A is shown.

[0024] Figure 2C A perspective view of the lens module after a dispensing procedure of Figure 2A is shown. DETAILED DESCRIPTION

[0025] The embodiments of the present application will be described in detail below with reference to the drawings. In addition to these detailed descriptions, the present application can be widely applied to other embodiments, and any easy replacement, modification, equivalent change of the embodiments is included in the scope of the present application, and is subject to the claims. In the description of the specification, in order to enable those skilled in the art to have a more complete understanding of the present application, many specific details and implementation examples are provided; however, these specific details and implementation examples should not be regarded as limitations of the present application. In addition, well-known steps or elements are not described in detail to avoid unnecessary limitations of the present application.

[0026] Figure 1A A perspective view of a processing device 10 according to an embodiment of the present application is shown. Figure 1B A perspective view of the processing device 10 is shown. Figure 1A A perspective view of another view of the processing device 10 is shown. Figure 1C A partial exploded view of a focusing system 13 is shown. Figure 1D A partial top view of the focusing system 13 is shown. Figure 1E A perspective view of a dispensing system 17 and an illuminating system 19 is shown. Figure 1F A perspective view of a lens module 12 performing a height measurement procedure by means of a height measurement system 11 is shown. Figure 1G A perspective view of the lens module 12 performing an inspection procedure by means of an inspection system 15 is shown.

[0027] Please refer to Figures 1A to 1G The processing device 10 of the lens module mainly includes a focusing system 13, a driving system 16, a dispensing system 17 and an illuminating system 19, and the driving system 16 has a carrying module 161, a track 162 and a driving motor (not shown). The carrying module 161 is movably arranged on the track 162, the illuminating system 19 and the dispensing system 17 are relatively arranged, and the dispensing system 17 and the illuminating system 19 can be arranged in the positive X direction and the negative X direction of the track 162, but the present application is not limited thereto.

[0028] The processing device 10 can have a starting position P0, a detection position P1, a focusing position P2 and a curing position P3. When the lens module 12 is processed, the lens module 12 can be placed on the carrying module 161, and the driving motor of the driving system 16 can drive the carrying module 161 and the lens module 12 to move to different positions by the track 162 to perform corresponding processing. In a specific embodiment, the driving system 16 is a linear module, and the track 162 can be a linear path arranged in the Y direction (the first direction), i.e. the carrying module 161 can drive the lens module 12 to move along the Y direction, but it is not used to limit the present application.

[0029] When the processing device 10 performs the focusing procedure of the lens module 12, the driving system 16 can drive the carrier module 161 and the lens module 12 to move from the starting position P0 to a focusing position P2 corresponding to the focusing system 13, and perform the focusing procedure on the lens module 12 through the focusing system 13; after completing the focusing procedure, the driving system 16 can drive the carrier module 161 and the lens module 12 to move to a curing position P3 corresponding to the dispensing system 17, and perform the dispensing procedure through the dispensing system 17; after completing the dispensing procedure, the curing procedure is performed on the lens module 12 through the light irradiation system 19, and then the driving system 16 drives the carrier 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 carrier 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 starting position P0, focusing position P2 and curing position P3.

[0030] Please refer to Figure 1C and Figure 1D The focusing system 13 mainly includes a base 130, a first transmission wheel 1321, a second transmission wheel 1322 and a transmission belt 134. The base 130 is arranged on the XY plane (the first plane), and the first transmission wheel 1321 and the second transmission wheel 1322 are arranged on the base 130 along the X direction (the second direction). 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 can be synchronously rotated 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.

[0031] The focusing system 13 further includes an idler wheel set 1360 and a jaw structure 138. The idler wheel set 1360 is arranged on the jaw structure 138, and the jaw structure 138 is arranged on the base 130 and extends to the opening 130u. The idler wheel set 1360 includes a plurality of idler wheels arranged between the first transmission wheel 1321 and the second transmission wheel 1322, and the jaw structure 138 is arranged on the base 130 and extends to the opening 130u, wherein the jaw structure 138 includes a first clamping arm 1381 adjacent to the second side wall SW2 and a second clamping arm 1382 adjacent to the fourth side wall SW4, and the plurality of idler wheels of the idler wheel set 1360 are arranged on the first clamping arm 1381 and the second clamping arm 1382, respectively. In a specific embodiment, the idler wheel set 1360 includes a first idler wheel 1361, a second idler wheel 1362, a third idler wheel 1363 and a fourth idler wheel 1364.

[0032] The first clamping arm 1381 and the second clamping arm 1382 are closer to or farther 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 are closer to or farther away from each other in the Y direction. The idler wheel set 1360 and the transmission belt 134 can be arranged on substantially the same XY plane. Once the first clamping arm 1381 and the second clamping arm 1382 are closer to each other to a distance less than the belt spacing d of the transmission belt 134, the transmission belt 134 is squeezed and the belt spacing d of the transmission belt 134 in the Y direction is shortened.

[0033] The focusing system 13 further includes a sixth driving module 138C and a seventh driving module 1321E. The sixth driving module 138C drives the first clamping arm 1381 and the second clamping arm 1382 to be closer to or farther away from each other in the Y direction. The sixth driving module 138C can be a cylinder or a motor. The first transmission wheel 1321 is connected to the seventh driving module 1321E and can be rotated by the seventh driving module 1321E. The seventh driving module 1321E can be a servo motor, a motor or a servo-reduction motor, which can precisely control the rotation frequency of the first transmission wheel 1321.

[0034] The first transmission wheel 1321 has a first cylindrical surface (not shown) and a plurality of first tooth structures (not shown) arranged on the first cylindrical surface. The transmission belt 134 has an inner surface 134ns and an outer surface 134ts, and the inner surface 134ns has a plurality of second tooth structures (not shown). The second transmission wheel 1322 has a second cylindrical surface (not shown) and a plurality of third tooth structures (not shown) arranged on the second cylindrical surface. The first transmission wheel 1321 is in contact with and engaged with the second tooth structures by the first tooth structures to drive the transmission belt 134 to operate. The transmission belt 134 is in contact with and engaged with the third tooth structures by the second tooth structures to drive the second transmission wheel 1322 to rotate.

[0035] The focusing system 13 further includes a magnification lens 131 located in the positive Z direction of the base 130 and the transmission belt 134. Specifically, the magnification lens 131 is arranged at the position P2 and located in the negative Z direction of the detection chart CH. In the focusing process, the detection chart CH, the magnification lens 131 and the lens 120 can be coaxially arranged in the Z direction.

[0036] Please refer to Figure 1E The carrying module 161 includes a seat body 1611, a rotating disc 1612 and a first driving module 1613. Specifically, the seat body 1611 is arranged on the rotating disc 1612, and the lens module 12 can be placed on the seat body 1611. The first driving module 1613 can drive the rotating disc 1612 to rotate clockwise and / or counterclockwise, and can drive the rotating disc 1612 to rotate the seat body 1611 and the lens module 12.

[0037] The dispensing system 17 mainly comprises a dispensing assembly 170 and a second driving module 175. The dispensing assembly 170 has a needle cylinder 171 and a needle head 173 connected to the needle cylinder 171 and extendable towards the lens module 12. When the dispensing system 17 performs a dispensing procedure, the lens module 12 is arranged on the seat body 1611, the seat body 1611 is positioned at a dispensing station, and the second driving module 175 can drive the dispensing assembly 170 to move from an initial position towards the seat body 1611, so that the front end 173d of the needle head 173 approaches the joint between the upper part 1201 and the lower part 1202 of the lens module 12. Then, the second driving module 175 can drive the liquid adhesive AH to be sprayed from the needle cylinder 171 through the front end 173d of the needle head 173 and adhered between the upper part 1201 and the lower part 1202 of the lens module 12, at which time the rotating disc 1612 can be rotated. Subsequently, the dispensing assembly 170 returns to the initial position by the second driving module 175. The second driving module 175 can be a cylinder. The dispensing system 17 can be a dispensing system capable of performing dispensing at a fixed point, an arc dispensing system capable of performing arc dispensing, a circumferential dispensing system capable of performing circumferential dispensing, or a combined dispensing system capable of performing dispensing at a fixed point and in an arc, but the present application is not limited thereto.

[0038] In an embodiment, the dispensing system 17 further comprises a third driving module 177 and a fourth driving module 179. Before performing the dispensing procedure, the dispensing assembly 170 can be positioned in two axes by the third driving module 177 and the fourth driving module 179. Specifically, the dispensing assembly 170 can be arranged on the XZ plane, the third driving module 177 can drive the dispensing assembly 170 to move in the X direction (second direction), and the fourth driving module 179 can drive the dispensing assembly 170 to move in the Z direction (third direction), that is, the dispensing assembly 170 can be moved to a proper position by the third driving module 177 and the fourth driving module 179 according to the size of the lens module 12 before performing the dispensing procedure.

[0039] The light irradiation system 19 comprises a fixing member 191 and a light source group 193 arranged on the bottom surface 191b of the fixing member 191. In an embodiment, the light source group 193 comprises at least one light source, and in this embodiment, three light sources are taken as examples, which are a first light source 1931, a second light source 1932 and a third light source 1933. However, the present application is not limited thereto, and the light source group 193 can have multiple point light sources or ring light sources.

[0040] The light system 19 further comprises a fifth driving module 195, which drives the fixing member 191 to move in the Z direction, so that the light source group 193 approaches or moves away from the carrying module 161 through the movement of the fixing member 191. After the dispensing assembly 170 moves away from the lens module 12 after completing the dispensing procedure, the fifth driving module 195 drives the fixing member 191 and the light source group 193 to move in the negative Z direction, so that the light source group 193 and the lens module 12 are located in the substantially same XY plane, and the dispensing position of the lens module 12 can be irradiated by the light source group 193 to cure the adhesive AH on the lens module 12, so that the adhesive AH fixes the upper part 1201 and the lower part 1202.

[0041] The fixing member 191 has a through hole 191u, and the first light source 1931, the second light source 1932 and the third light source 1933 can be evenly arranged on the circumference of the through hole 191u. In a specific embodiment, in the curing procedure, the center point of the through hole 191u can be substantially coincided with the positive Z direction of the lens module 12, and the lens module 12 can be arranged between the first light source 1931, the second light source 1932 and the third light source 1933, and the dispensing position of the lens module 12, the first light source 1931, the second light source 1932 and the third light source 1933 can be located in the substantially same XY plane, but it is not used to limit the utility model, in the curing procedure, the fixing member 191 can also be located in the positive Z direction of the lens module 12, and the first light source 1931, the second light source 1932 and the third light source 1933 can be suspended from the fixing member 191 and have an angle with the XY plane.

[0042] In addition, in a specific embodiment, the processing device 10 can further comprise a height measuring system 11, which can be arranged at the detection position P1. Before the processing device 10 performs the focusing procedure 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 detection position P1, so that the height measuring system 11 can preliminarily measure the height of the lens module 12, and the distance between the object end of the lens module 12 and the reference height can be recorded, wherein the reference height can be the contact surface of the carrying module 161 and the lens module 12. The height measuring system 11 can comprise a camera 111 and a screen 112, which can be arranged in the positive X direction and the negative X direction of the track respectively, and the camera 111 and the lens module 12 can be arranged in the substantially same XY plane.

[0043] As Figure 1F and 1GAs shown, in another specific embodiment, the processing device 10 may further include an inspection system 15. Before the lens module 12 completes the focusing procedure and performs the dispensing procedure, the drive system 16 may also drive the carrier module 161 and the lens module 12 from the focusing position P2 to the position corresponding to the inspection system 15, so that the inspection system 15 can check whether there is dust, dirt and / or scratches in the focused lens module 12. The inspection system 15 may also be set at the detection position P1, but this is not intended to limit the present invention. The height measuring system 11 and the inspection system 15 may also be set at other positions on the track 162. The inspection system 15 may include a mask 151, a fixing plate 152, an eighth drive module 153 and a ninth drive module 154. The mask 151 is set on the fixing plate 152. The eighth drive module 153 can drive the mask 151 and the fixing plate 152 to move along the Z direction. The ninth drive module 154 can drive the mask 151, the fixing plate 152 and the eighth drive module 153 to move along the X direction. Specifically, screen 112 is mounted on fixed plate 152, and camera 111 can take pictures of lens module 12 with screen 11P as the background to measure height. The mask 151 may have an arc-shaped appearance and provide a relatively pure white environment; during inspection procedures, inspection system 15 can cover lens module 12.

[0044] Furthermore, the processing apparatus 10 may also include a control center (not shown), and the carrier module 161 is electrically connected to the control center and the lens module 12.

[0045] Figure 2A A perspective view of the lens module 12 before the dispensing process according to an embodiment of the present invention is shown. Figure 2B Draw Figure 2A An exploded view of lens module 12. Figure 2C Draw Figure 2A A stereoscopic view of lens module 12 after the dispensing process.

[0046] 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 simultaneously observe the real-time image quality of the lens module 12.

[0047] Simultaneously refer to Figure 1A and Figure 1BIn particular, the processing device 10 further comprises a detection chart CH, which is arranged in the positive Z direction (third direction) of the focusing system 13. The lens module 12 can maintain a powered state throughout the focusing procedure and can capture images of the detection chart CH at a constant frequency. The detection chart CH can also be displayed on a display device, so that the user can observe in real time whether the image is clear or blurred.

[0048] Referring to FIG. 1 and FIG. 2 simultaneously, Figures 2A to 2C The lens 120 can be a threaded lens, which can include an upper part 1201 and a lower part 1202. The upper part 1201 is partially accommodated in an annular groove of the lower part 1202. The upper part 1201 is a columnar structure and includes an optical lens. The upper part 1201 has an upper outer surface 1201s and a lower outer surface 1201sw, which is closer to the lower part 1202 than the upper outer surface 1201s. The diameter of the upper outer surface 1201s can be greater than the diameter of the lower outer surface 1201sw. The lower outer surface 1201sw can have a first threaded structure, and the inner surface 1202sw of the annular groove of the lower part 1202 has a second threaded structure corresponding to the first threaded structure. In one embodiment, the distance 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, but the present application is not limited thereto, and the appropriate distance SP1 can be set according to the size of the lens 120.

[0049] Before the dispensing procedure 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 procedure and is processed by the dispensing system 17 and the light irradiation system 19 through the dispensing procedure and the curing procedure, the upper part 1201 and the lower part 1202 are fixed together by the adhesive AH. The adhesive AH can be a photosensitive adhesive, including but not limited to UV glue, which can fix the upper part 1201 and the lower part 1202 after being irradiated by a specific light beam.

[0050] The processing method of the processing device 10 of the lens module 12 can include the following steps S101-S109.

[0051] As shown in step S101, a processing device 10 is provided, for example, the aforementioned processing device 10.

[0052] As shown in step S103, a lens module 12 is provided, and the lens module 12 is arranged on the carrier module 161. At this time, the carrier module 161 is located at the starting position P0.

[0053] As shown in step S105, the lens module 12 is moved to the detection position P1, and the height of the lens module 12 is preliminarily measured by the height measuring system 11.

[0054] In some embodiments, the driving system 16 can drive the carrying module 161 to move the lens module 12 from the starting position P0 to the detecting position P1, and then the height measuring system 11 can take a picture of the lens module 12 to determine the height of the lens module 12.

[0055] As shown in step S107, the lens module 12 is moved to the focusing position P2, and the focusing system 13 performs a focusing procedure on the lens module 12.

[0056] In some embodiments, the focusing procedure can include a pre-focusing procedure and a fine-focusing procedure. The pre-focusing procedure can preliminarily focus the lens module 12 according to the height of the lens module 12 determined by the height measuring system 11, and the focusing system 13 rotates the upper part 1201 of the lens 120 to adjust the relative height between the lens 120 and the photosensor 124, so that the focal point of the lens 120 is approximately at a preset distance between the lens 120 and the photosensor 124, i.e., the imaging position of the light beam penetrating through the lens 120 is approximately at the preset distance. The fine-focusing procedure is to rotate the upper part 1201 of the lens 120 by the focusing system 13 to adjust the optimal distance between the lens 120 and the photosensor 124. During the rotation of the upper part 1201 of the lens 120 by the focusing system 13, the distance between the upper part 1201 and the photosensor 124 in the Z direction also changes, and the photosensor 124 can regularly capture the light beam penetrating through the lens 120 and transmit image data (e.g., the image of the detection chart CH) to the display device of the control center to observe in real time whether the imaging of the lens 120 is clear. Once the control center determines that the photosensor 124 captures the best image, the distance between the upper part 1201 and the photosensor 124 corresponding to the best image is defined.

[0057] As shown in step S109, the lens module 12 is moved to the detecting position P1, and the inspection system 15 performs an inspection procedure on the lens module 12 to check whether the lens module 12 after the focusing procedure has dust, dirt and / or scratches.

[0058] As shown in step S111, the lens module 12 is moved to the curing position P3, and the dispensing system 17 performs a dispensing procedure on the lens module 12.

[0059] As shown in step S113, the lens module 12 is subjected to a curing procedure by the light irradiation system 19.

[0060] As shown in step S115, the lens module 12 is moved to the focusing position P2 to confirm the image quality of the lens module 12.

[0061] In some embodiments, the driving system 16 drives the carrying module 161 and the lens module 12 to move from the curing position P3 to the focusing position P2, and the detection chart CH is taken again to confirm the quality of the image.

[0062] As shown in step S117, the lens module 12 is moved to the initial position P0. Thus, the machining method of the lens module 12 of the machining device 10 is completed.

[0063] The machining device 10 of the lens module 12 of the utility model is to process the lens module 12 in an automatic way. Compared with the manual processing way, the machining method of the lens module 12 of the utility model can be more precise, can save the labor cost and the time spent, and the lens module 12 can have high imaging quality.

[0064] In summary, although the utility model has been disclosed as above with embodiments, it is not intended to limit the utility model. Those skilled in the art to which the utility model belongs can make various changes and decorations without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the definition of the claims.

[0065] Of course, the utility model can also have other various embodiments. Those skilled in the art can make various corresponding changes and modifications according to the utility model without departing from the spirit and essence of the utility model. However, these corresponding changes and modifications shall all belong to the protection scope of the claims of the utility model.

Claims

1. A processing apparatus characterized by comprising: The processing device comprises: a driving system comprising a carrying module and a track, the carrying module being movably arranged on the track; a focusing system arranged at a focusing position of the track, the focusing system comprising a first transmission wheel, a second transmission wheel and a transmission belt; a dispensing system arranged at a dispensing position of the track, the dispensing system comprising a dispensing assembly; and an illuminating system arranged opposite to the dispensing system, the illuminating system comprising a light source group.

2. The processing apparatus of claim 1, wherein The driving system is a linear module.

3. The processing apparatus of claim 1, wherein The carrying module comprises a seat, a rotating disc and a first driving module, the seat is arranged on the rotating disc, and the first driving module drives the rotating disc to rotate.

4. The processing apparatus of claim 1, wherein The focusing system further comprises a idler assembly, the transmission belt is sleeved on the first transmission wheel and the second transmission wheel, and the idler assembly is arranged between the first transmission wheel and the second transmission wheel.

5. The processing apparatus according to claim 1 or 4, wherein The transmission belt has an inner surface and a plurality of second tooth structures arranged on the inner surface.

6. The processing apparatus of claim 1, wherein The dispensing system is a fixed-point dispensing system, an arc-shaped dispensing system, a circumferential dispensing system or a compound dispensing system.

7. The processing apparatus of claim 1, wherein The illuminating system further comprises a fixing member, and the light source group is arranged on the bottom surface of the fixing member.

8. The processing apparatus of claim 7, wherein The fixing member has a through hole, and the light source group is arranged on the circumference of the through hole.

9. The processing apparatus of claim 1 wherein, The processing device further comprises a height measuring system, and the height measuring system comprises a camera and a screen.

10. The processing apparatus of claim 1, wherein The processing device further comprises an inspection system, and the inspection system comprises a shade and a fixing plate, the shade is arranged on the fixing plate.

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