An aperture and shutter integrated device

Abstract

This invention discloses an integrated variable aperture and shutter device, comprising a shutter assembly, an aperture assembly, and a lower fixed base, a middle partition, and an upper cover plate connected sequentially from bottom to top. The shutter assembly includes a shutter drive component and two shutter blades for opening and closing. The shutter drive component includes a U-shaped iron core, a winding frame, a coil winding, a movable magnet, and a movable rocker. The movable rocker drives the two shutter blades to rotate synchronously via a drive shaft. A lower receiving cavity is formed between the lower fixed base and the middle partition, and an upper receiving cavity is formed between the middle partition and the upper cover plate. The two shutter blades are located within the upper receiving cavity. The aperture assembly includes a drive ring, a stepper motor, and several aperture blades. The drive ring and several aperture blades are located within the lower receiving cavity. The stepper motor is driven by the drive ring, which drives each aperture blade to rotate. This invention has the advantages of novel design, diverse functions, and compact structure, and can realize both shutter and aperture functions.

Description

Technical Field

[0001] This invention relates to the field of optical device technology, and in particular to a variable aperture and shutter integrated device. Background Technology

[0002] Chinese invention patent with patent number ZL202011503132.8 and patent title: A Bistable Miniature Thermal Imaging Shutter, specifically discloses the following technical solution: A bistable miniature thermal imaging shutter, including a supporting base plate, a fixed lens barrel, a coil assembly, a blade assembly, a crank magnet assembly, and an FPC circuit board. The coil assembly includes an iron core and a coil winding electrically connected to the FPC circuit board. The crank magnet assembly includes a movable crank, which includes a crank mounting part and a part disposed on the crank mounting part and protruding outward. An extended crank drive unit is provided at the end of the crank drive unit, and a drive shaft is provided at the end of the crank mounting unit. A movable magnet connected to the crank mounting unit for preventing rotation is fitted around the crank mounting unit. The movable magnet is directly opposite the magnetic pole of the iron core. An arc-shaped through hole is opened at the base of the lens barrel corresponding to the drive shaft of the movable crank. The blade assembly includes an upper movable blade and a lower movable blade. The upper and lower movable blades are respectively provided with blade drive holes. The drive shaft of the movable crank is inserted into the blade drive holes of the upper and lower movable blades in sequence, and the upper and lower movable blades are respectively hinged to the fixed lens barrel through blade pivots.

[0003] During the aforementioned bistable miniature thermal imaging shutter operation, the coil winding is energized and magnetizes the iron core. The magnetized iron core acts on the movable magnet through its magnetic poles, causing the movable magnet and the movable crank to rotate. The rotating movable crank drives the upper and lower movable blades to rotate around the blade pivot as the center of rotation through the moving shaft at the end of the crank drive unit. The upper and lower movable blades rotate synchronously in opposite directions. When the upper and lower movable blades are closed, the shutter is closed; when the upper and lower movable blades are open, the shutter is open.

[0004] It should be noted that the aforementioned bistable miniature thermal imaging shutter still has the following drawbacks: Specifically, the bistable miniature thermal imaging shutter only has a shutter function, that is, it can only control the opening and closing of the aperture to control the lens exposure time, but does not have an aperture function to control the amount of light passing through the lens. Summary of the Invention

[0005] The purpose of this invention is to provide a variable aperture and shutter integrated device to address the shortcomings of existing technologies. This variable aperture and shutter integrated device has a novel design, multiple functions, and a compact structure, and can realize both shutter and aperture functions.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions.

[0007] A variable aperture and shutter integrated device includes a shutter assembly, which includes a shutter drive component and two stacked shutter blades that perform opening and closing actions. The shutter drive component includes a U-shaped iron core, a winding frame fitted around the U-shaped iron core, a coil winding wrapped around the winding frame, a movable magnet rotatably mounted next to the magnetic pole of the U-shaped iron core, and a movable rocker that rotates synchronously with the movable magnet. The movable rocker is provided with a drive shaft part offset from the rotation center of the movable rocker. Each shutter blade is provided with a first blade drive hole that is vertically penetrating and has an elongated hole shape. The drive shaft part of the movable rocker extends into the first blade drive hole of each shutter blade in sequence. The variable aperture and shutter integrated device also includes an aperture assembly, a lower fixed base, a middle partition, and an upper cover plate connected sequentially from bottom to top. A lower receiving cavity is formed between the lower fixed base and the middle partition, and an upper receiving cavity is formed between the middle partition and the upper cover plate. The lower fixed base has a vertically penetrating fixed base light-transmitting hole, the middle partition has a vertically penetrating partition light-transmitting hole, and the upper cover plate has a vertically penetrating cover plate light-transmitting hole. The fixed base light-transmitting hole, the partition light-transmitting hole, and the cover plate light-transmitting hole are aligned sequentially from bottom to top. Two shutter blades are located in the upper accommodating cavity, and the drive shaft of the movable rocker extends into the upper accommodating cavity. The upper surface of the middle partition is provided with an upwardly protruding first pivot shaft corresponding to each shutter blade. Each shutter blade is provided with a vertically penetrating first pivot hole. Each shutter blade is rotatably pivoted to the corresponding first pivot shaft through the first pivot hole. The aperture assembly includes a circular drive ring and several rotatable aperture blades located on the upper side of the drive ring. The drive ring and the aperture blades are respectively located in the lower accommodating cavity. An external gear is provided on the outer edge of the drive ring. A stepper motor is screwed onto the lower fixed seat. A drive gear is mounted on the power output shaft of the stepper motor, and the drive gear meshes with the external gear of the drive ring. The lower fixed seat is provided with an upwardly protruding second pivot shaft corresponding to each aperture blade on the bottom surface of the lower accommodating cavity. The drive ring is provided with an arc-shaped clearance groove corresponding to each second pivot shaft. Each second pivot shaft passes through the corresponding arc-shaped clearance groove of the drive ring from bottom to top, and the upper end of each second pivot shaft extends to the upper end of the drive ring. Each aperture blade is provided with a second pivot hole, and each aperture blade is rotatably pivotally connected to the corresponding second pivot shaft through the second pivot hole. The upper surface of the drive ring is provided with an upwardly protruding drive ring convex shaft corresponding to each aperture blade. Each aperture blade is provided with a curved second blade drive hole next to the corresponding second pivot hole. Each drive ring convex shaft of the drive ring extends into the second blade drive hole of the corresponding aperture blade.

[0008] The intermediate partition plate is provided with arc-shaped clearance grooves corresponding to the drive ring protrusions of the drive ring, and the upper end of each drive ring protrusion extends into the corresponding arc-shaped clearance groove.

[0009] The lower fixing seat is screwed onto the side of the light-transmitting hole of the fixing seat, and the U-shaped iron core is fastened between the lower fixing seat and the engine cover plate. The hood has a magnetic positioning groove corresponding to the movable magnet, and the lower end of the movable magnet is rotatably installed in the magnetic positioning groove of the hood.

[0010] The movable magnet has a vertically penetrating magnetic through hole in its core. The movable rocker includes a rocker shaft and a rocker arm. The drive shaft, rocker shaft, and rocker arm are an integral structure, with the drive shaft located at the end of the rocker arm. The crank shaft of the movable crank is fitted into the magnet through hole of the movable magnet, and the crank shaft of the movable crank is connected to the movable magnet to prevent rotation.

[0011] Among them, a diameter blade is installed in the lower accommodating cavity between the drive ring and the aperture blade, and a blade light-transmitting hole is opened in the middle position of the diameter blade, which is aligned with the light-transmitting hole of the fixed seat. Each of the second pivot shafts of the lower fixed seat has a vertically penetrating circular hole for the blade corresponding to the diameter blade. The second pivot shaft of the lower fixed seat passes through the corresponding circular hole of the diameter blade. Each blade has a vertically penetrating, arc-shaped blade hole corresponding to the drive ring convex shaft of the drive ring. Each drive ring convex shaft of the drive ring passes through the corresponding blade arc-shaped hole of the blade.

[0012] The upper surface of the intermediate partition is provided with a partition flange that contacts the lower surface of the shutter blade.

[0013] The lower fixed seat has several fixed seat rivets arranged at intervals on its edge. The middle partition plate has partition plate rivet holes corresponding to each fixed seat rivet. Each fixed seat rivet of the lower fixed seat is press-fitted into the corresponding partition plate rivet hole.

[0014] The middle partition has several partition rivet posts arranged at intervals on its edge. The upper cover plate has cover plate rivet holes corresponding to each partition rivet post. Each partition rivet post of the middle partition is pressed and fixed in the corresponding cover plate rivet hole.

[0015] The lower fixed base is equipped with an FPC circuit board, and the coil winding and the stepper motor are electrically connected to the FPC circuit board.

[0016] Compared with the prior art, the present invention has the following beneficial effects, specifically: 1. The variable aperture and shutter integrated device of the present invention can realize shutter function and aperture function; compared with the prior art, the variable aperture and shutter integrated device of the present invention has the advantage of multiple functions; 2. The present invention divides the space between the lower fixed base and the upper cover plate into an upper accommodating cavity and a lower accommodating cavity by means of a middle partition plate. The shutter blades are installed in the upper accommodating cavity and several aperture blades are installed in the lower accommodating cavity. This structural design can effectively avoid the movement interference of the shutter blades and aperture blades, and can also effectively improve the compactness of the structure. 3. Therefore, the variable aperture and shutter integrated device of the present invention has the advantages of novel design, multiple functions, and good compact structure, and can realize shutter function and aperture function. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention.

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 for Figure 1 A schematic diagram of its breakdown.

[0020] Figure 3 This is a structural schematic diagram from another perspective of the present invention.

[0021] Figure 4 for Figure 3 A schematic diagram of its breakdown.

[0022] Figure 5 This is a partial structural diagram of the present invention.

[0023] Figure 6 This is another partial structural schematic diagram of the present invention.

[0024] Figure 7 This is a schematic diagram of the shutter drive assembly of the present invention.

[0025] exist Figures 1 to 7 This includes: 1-Shutter assembly; 11-Shutter blade; 111-First blade drive hole; 112-First pivot hole; 12-U-shaped iron core; 13-Winding frame; 14-Modible magnet; 141-Magnet through hole; 15-Modible crank; 151-Drive shaft; 152-Crankshaft; 153-Crankshaft arm; 16-Hood plate; 161-Magnet positioning groove; 2-Aperture assembly; 21-Drive ring; 211-External gear; 212-Drive ring arc-shaped clearance groove; 213-Drive ring convex shaft; 22-Aperture blade; 221-Second pivot hole; 2 22-Second blade drive hole; 23-Stepper motor; 24-Drive gear; 3-Lower fixed seat; 31-Fixed seat light-transmitting hole; 32-Second pivot shaft; 33-Fixed seat rivet; 4-Intermediate partition; 41-Partition light-transmitting hole; 42-First pivot shaft; 43-Partition arc-shaped clearance groove; 44-Partition flange; 45-Partition riveting hole; 46-Partition riveting post; 5-Upper cover plate; 51-Cover plate light-transmitting hole; 52-Cover plate riveting hole; 6-Diameter blade; 61-Blade light-transmitting hole; 62-Blade circular hole; 63-Blade arc-shaped hole; 7-FPC circuit board. Detailed Implementation

[0026] The present invention will now be described in conjunction with specific embodiments.

[0027] Example 1, as Figures 1 to 7 As shown, a variable aperture and shutter integrated device includes a shutter assembly 1. The shutter assembly 1 includes a shutter drive component and two stacked shutter blades 11 that perform opening and closing actions. The shutter drive component includes a U-shaped iron core 12, a winding frame 13 fitted around the U-shaped iron core 12, a coil winding wrapped around the winding frame 13, a movable magnet 14 rotatably mounted next to the magnetic pole of the U-shaped iron core 12, and a movable crank 15 that rotates synchronously with the movable magnet 14. The movable crank 15 is provided with a drive shaft portion 151 that is offset from the rotation center of the movable crank 15. Each shutter blade 11 is provided with a first blade drive hole 111 that is vertically penetrating and has an elongated hole shape. The drive shaft portion 151 of the movable crank 15 extends into the first blade drive hole 111 of each shutter blade 11 in sequence.

[0028] Among them, such as Figures 1 to 7 As shown, the variable aperture and shutter integrated device also includes an aperture assembly 2, a lower fixing seat 3, a middle partition 4, and an upper cover plate 5 connected sequentially from bottom to top. A lower receiving cavity is formed between the lower fixing seat 3 and the middle partition 4, and an upper receiving cavity is formed between the middle partition 4 and the upper cover plate 5. The lower fixing seat 3 has a vertically penetrating fixing seat light-transmitting hole 31, the middle partition 4 has a vertically penetrating partition light-transmitting hole 41, and the upper cover plate 5 has a vertically penetrating cover plate light-transmitting hole 51. The fixing seat light-transmitting hole 31, the partition light-transmitting hole 41, and the cover plate light-transmitting hole 51 are aligned sequentially from bottom to top.

[0029] Furthermore, such as Figure 2 , Figure 4 , Figure 6 as well as Figure 7 As shown, two shutter blades 11 are located in the upper accommodating cavity, and the drive shaft 151 of the movable rocker 15 extends into the upper accommodating cavity. The upper surface of the intermediate partition 4 is provided with an upwardly protruding first pivot shaft 42 corresponding to each shutter blade 11. Each shutter blade 11 is provided with a vertically penetrating first pivot hole 112. Each shutter blade 11 is rotatably pivoted to the corresponding first pivot shaft 42 through the first pivot hole 112.

[0030] Furthermore, such as Figures 1 to 6 As shown, the aperture assembly 2 includes a circular drive ring 21 and several rotatable aperture blades 22 located on the upper side of the drive ring 21. The drive ring 21 and the aperture blades 22 are respectively located in the lower accommodating cavity. An external gear portion 211 is provided on the outer edge of the drive ring 21. A stepper motor 23 is screwed onto the lower fixing seat 3. A drive gear 24 is installed on the power output shaft of the stepper motor 23. The drive gear 24 meshes with the external gear portion 211 of the drive ring 21. The lower fixing seat 3 is provided with an upwardly protruding second pivot shaft 32 on the bottom surface of the lower accommodating cavity corresponding to each aperture blade 22. The drive ring 21 is provided with an arc-shaped drive ring clearance groove 212 corresponding to each second pivot shaft 32. Each second pivot shaft 32 passes through the corresponding drive ring arc-shaped clearance groove 212 from bottom to top, and the upper end of each second pivot shaft 32 extends to the upper end of the drive ring 21. Each aperture blade 22 is provided with a second pivot hole 221, and each aperture blade 22 is rotatably pivoted to the corresponding second pivot shaft 32 through the second pivot hole 221. The upper surface of the drive ring 21 is provided with an upwardly protruding drive ring convex shaft 213 corresponding to each aperture blade 22. Each aperture blade 22 is provided with a curved second blade drive hole 222 on the side of the corresponding second pivot hole 221. Each drive ring convex shaft 213 of the drive ring 21 extends into the second blade drive hole 222 of the corresponding aperture blade 22.

[0031] In the process of realizing the shutter function in the variable aperture and shutter integrated device of this embodiment, the U-shaped iron core 12, the winding frame 13, the coil winding, and the movable magnet 14 form a U-shaped iron solenoid valve structure that drives the movable crank 15 to rotate. The rotating movable crank 15 drives the two shutter blades 11 to rotate synchronously through its drive shaft 151, thereby causing the two shutter blades 11 to open and close. During this process, each shutter blade 11 rotates around the first pivot shaft 42 and the first pivot hole 112, respectively. When the two shutter blades 11 are closed, they cooperate and block light from passing through the through hole of the fixed seat, the through hole of the partition plate, and the through hole of the cover plate. When the two shutter blades 11 are open, light can pass normally through the through hole of the fixed seat, the through hole of the partition plate, and the through hole of the cover plate. Therefore, the variable aperture and shutter integrated device of this embodiment can control the exposure time of the lens through the shutter assembly 1.

[0032] In the process of realizing the aperture function in the variable aperture and shutter integrated device of this embodiment, the stepper motor 23 drives the drive ring 21 to rotate through the drive gear 24. The rotating drive ring 21 drives the corresponding aperture blades 22 to rotate around the second pivot hole 221 and the second pivot shaft 32 as the rotation center through the drive ring convex shaft 213, thereby adjusting the amount of light transmitted through the fixed seat through hole, the partition through hole and the cover plate through hole.

[0033] It should be emphasized that the variable aperture and shutter integrated device of this embodiment can realize shutter function and aperture function; compared with the prior art, the variable aperture and shutter integrated device of this embodiment has the advantage of multiple functions.

[0034] It should be further emphasized that in this embodiment, the space between the lower fixed seat 3 and the upper cover plate 5 is divided into an upper accommodating cavity and a lower accommodating cavity by the middle partition plate 4. The shutter blade 11 is installed in the upper accommodating cavity, and several aperture blades 22 are installed in the lower accommodating cavity. This structural design can effectively avoid motion interference between the shutter blade 11 and the aperture blades 22, and can also effectively improve the compactness of the structure.

[0035] In summary, through the above structural design, the variable aperture and shutter integrated device of this embodiment has the advantages of novel design, diverse functions, and good structural compactness, and can realize both shutter and aperture functions. Example 2, as Figure 2 , Figure 3 as well as Figure 6 As shown, the difference between this embodiment 2 and embodiment 1 is that: the intermediate partition 4 is provided with arc-shaped partition arc-shaped clearance grooves 43 corresponding to each drive ring convex shaft 213 of the drive ring 21, and the upper end of each drive ring convex shaft 213 extends into the corresponding partition arc-shaped clearance groove 43.

[0036] It should be explained that in this embodiment, the intermediate partition 4 uses its partition arc-shaped clearance groove 43 to clear the clearance of the drive ring convex shaft 213 of the drive ring 21. This structural design can further improve the compactness of the overall structure. Example 3, as Figures 1 to 7 As shown, the difference between this embodiment 3 and embodiment 1 is that: the lower fixing seat 3 is screwed with an engine cover plate 16 on the side of the light-transmitting hole 31 of the fixing seat, and the U-shaped iron core 12 is fixedly installed between the lower fixing seat 3 and the engine cover plate 16.

[0037] The hood plate 16 has a magnetic positioning groove 161 corresponding to the movable magnet 14, and the lower end of the movable magnet 14 is rotatably installed in the magnetic positioning groove 161 of the hood plate 16.

[0038] In this embodiment, the movable magnet 14 is positioned by the magnet positioning groove 161 of the engine cover plate 16. During the process of the coil winding being energized and the movable magnet 14 being driven to rotate by the magnetic pole part of the U-shaped iron core 12, the magnet positioning groove 161 can effectively ensure the stability of the position of the movable magnet 14. Example 4, as Figure 2 , Figure 4 as well as Figure 7 As shown, the difference between this embodiment 4 and embodiment 1 is that: the core of the movable magnet 14 is provided with a vertically penetrating magnet through hole 141, and the movable rocker 15 includes a rocker shaft 152 and a rocker arm 153. The drive shaft 151, the rocker shaft 152, and the rocker arm 153 are an integral structure, and the drive shaft 151 is located at the end of the rocker arm 153.

[0039] The crank shaft 152 of the movable crank 15 is embedded in the magnet through hole 141 of the movable magnet 14, and the crank shaft 152 of the movable crank 15 is connected to the movable magnet 14 to prevent rotation.

[0040] When the U-shaped solenoid valve drives the movable magnet 14 to rotate, the movable magnet 14 drives the crank shaft 152 of the movable crank 15 to rotate synchronously, which in turn causes the crank arm 153 of the movable crank 15 to swing. The swinging crank arm 153 drives each shutter blade 11 to rotate through the drive shaft 151. Example 5, such as Figure 2 and Figure 4 As shown, the difference between this fifth embodiment and the first embodiment is that: a diameter blade 6 is installed in the lower accommodating cavity between the driving ring 21 and the aperture blade 22, and a blade light-transmitting hole 61 is opened in the middle position of the diameter blade 6, which is aligned with the light-transmitting hole 31 of the fixed seat.

[0041] The blade 6 has a vertically penetrating circular hole 62 corresponding to each of the second pivot shafts 32 of the lower fixed seat 3, and the second pivot shafts 32 of the lower fixed seat 3 pass through the corresponding circular holes 62 of the blade 6.

[0042] In addition, the diameter blade 6 is provided with a vertically penetrating and arc-shaped blade arc hole 63 corresponding to the drive ring convex shaft 213 of the drive ring 21, and each drive ring convex shaft 213 of the drive ring 21 passes through the corresponding blade arc hole 63 of the diameter blade 6.

[0043] For the aperture blade 6 in this embodiment 5, the size of the light-transmitting aperture of the entire device is limited by the aperture diameter light-transmitting aperture to ensure the accuracy of the light-transmitting aperture of the entire device. Example 6, as Figure 6 and Figure 7 As shown, the difference between this sixth embodiment and the first embodiment is that the upper surface of the intermediate partition 4 is provided with a partition flange 44 that contacts the lower surface of the shutter blade 11.

[0044] As for the partition flange 44 in this embodiment, it can effectively reduce the contact area between the shutter blade 11 and the middle partition 4, thereby effectively reducing the friction between the shutter blade 11 and the middle partition 4, so as to improve the smoothness of the rotation of the shutter blade 11. Example 7, as Figure 2 , Figure 5 , Figure 6 as well as Figure 7 As shown, the difference between this embodiment seven and embodiment one is that: the edge of the lower fixed seat 3 is provided with a plurality of fixed seat rivet posts 33 arranged at intervals, and the middle partition plate 4 is provided with partition plate rivet holes 45 corresponding to each fixed seat rivet post 33, and each fixed seat rivet post 33 of the lower fixed seat 3 is respectively pressed and fixed in the corresponding partition plate rivet hole 45. Example 8, as Figure 2 , Figure 5 , Figure 6 as well as Figure 7 As shown, the difference between this embodiment eight and embodiment one is that: the edge of the middle partition 4 is provided with a plurality of partition rivet posts 46 arranged at intervals, and the upper cover plate 5 is provided with cover plate rivet holes 52 corresponding to each partition rivet post 46, and each partition rivet post 46 of the middle partition 4 is respectively pressed and fixed in the corresponding cover plate rivet hole 52. Example 9, as Figures 1 to 4 As shown, the difference between this embodiment nine and embodiment one is that: the lower fixed base 3 is equipped with an FPC circuit board 7, and the coil winding and the stepper motor 23 are electrically connected to the FPC circuit board 7 respectively.

[0045] The above description is only a preferred embodiment of the present invention. For those skilled in the art, there will be changes in the specific implementation and application scope based on the ideas of the present invention. The content of this specification should not be construed as a limitation of the present invention.

Claims

1. A variable aperture and shutter integrated device, comprising a shutter assembly (1), the shutter assembly (1) comprising a shutter drive component, two stacked shutter blades (11) that perform opening and closing actions, the shutter drive component comprising a U-shaped iron core (12), a winding frame (13) fitted around the U-shaped iron core (12), a coil winding wrapped around the winding frame (13), a movable magnet (14) rotatably mounted next to the magnetic pole of the U-shaped iron core (12), and a movable rocker (15) that rotates synchronously with the movable magnet (14), the movable rocker (15) being provided with a drive shaft (151) offset from the rotation center of the movable rocker (15), each shutter blade (11) having a first blade drive hole (111) that is vertically penetrating and elongated, the drive shaft (151) of the movable rocker (15) extending sequentially into the first blade drive hole (111) of each shutter blade (11); Its features are: The variable aperture and shutter integrated device also includes an aperture assembly (2), a lower fixed seat (3), a middle partition (4), and an upper cover plate (5) connected from bottom to top. A lower receiving cavity is formed between the lower fixed seat (3) and the middle partition (4), and an upper receiving cavity is formed between the middle partition (4) and the upper cover plate (5). The lower fixed seat (3) has a vertically penetrating fixed seat light-transmitting hole (31), the middle partition (4) has a vertically penetrating partition light-transmitting hole (41), and the upper cover plate (5) has a vertically penetrating cover plate light-transmitting hole (51). The fixed seat light-transmitting hole (31), the partition light-transmitting hole (41), and the cover plate light-transmitting hole (51) are aligned from bottom to top. Two shutter blades (11) are located in the upper accommodating cavity, and the drive shaft (151) of the movable rocker (15) extends into the upper accommodating cavity. The upper surface of the middle partition (4) is provided with a first pivot shaft (42) that protrudes upward for each shutter blade (11). Each shutter blade (11) is provided with a first pivot hole (112) that penetrates vertically. Each shutter blade (11) is pivotally connected to the corresponding first pivot shaft (42) through the first pivot hole (112). The aperture assembly (2) includes a circular drive ring (21) and several rotatable aperture blades (22) located on the upper side of the drive ring (21). The drive ring (21) and several aperture blades (22) are located in the lower accommodating cavity. An external gear (211) is provided on the outer edge of the drive ring (21). A stepper motor (23) is screwed onto the lower fixed seat (3). A drive gear (24) is installed on the power output shaft of the stepper motor (23). The drive gear (24) meshes with the external gear (211) of the drive ring (21). The lower fixed seat (3) is provided with an upwardly protruding second pivot shaft (32) on the bottom surface of the lower accommodating cavity corresponding to each aperture blade (22). The drive ring (21) is provided with an arc-shaped drive ring clearance groove (212) corresponding to each second pivot shaft (32). Each second pivot shaft (32) passes through the corresponding drive ring arc-shaped clearance groove (212) from bottom to top, and the upper end of each second pivot shaft (32) extends to the upper end of the drive ring (21). Each aperture blade (22) is provided with a second pivot hole (221), and each aperture blade (22) is pivotally connected to the corresponding second pivot shaft (32) through the second pivot hole (221). The upper surface of the drive ring (21) is provided with an upwardly protruding drive ring convex shaft (213) corresponding to each aperture blade (22). Each aperture blade (22) is provided with a curved second blade drive hole (222) on the side of the corresponding second pivot hole (221). Each drive ring convex shaft (213) of the drive ring (21) extends into the second blade drive hole (222) of the corresponding aperture blade (22).

2. The variable aperture and shutter integrated device according to claim 1, characterized in that: The intermediate partition (4) is provided with arc-shaped partition arc-shaped clearance grooves (43) corresponding to the drive ring convex shafts (213) of the drive ring (21), and the upper end of each drive ring convex shaft (213) extends into the corresponding partition arc-shaped clearance groove (43).

3. The variable aperture and shutter integrated device according to claim 1, characterized in that: The lower fixing seat (3) is screwed with an engine cover plate (16) on the side of the light hole (31) of the fixing seat, and the U-shaped iron core (12) is fixedly installed between the lower fixing seat (3) and the engine cover plate (16). The hood (16) has a magnet positioning groove (161) corresponding to the movable magnet (14), and the lower end of the movable magnet (14) is rotatably installed in the magnet positioning groove (161) of the hood (16).

4. The variable aperture and shutter integrated device according to claim 1, characterized in that: The core of the movable magnet (14) is provided with a vertically penetrating magnet through hole (141). The movable rocker (15) includes a rocker shaft (152) and a rocker arm (153). The drive shaft (151), the rocker shaft (152), and the rocker arm (153) are an integral structure. The drive shaft (151) is located at the end of the rocker arm (153). The crank shaft (152) of the movable crank (15) is inserted into the magnet through hole (141) of the movable magnet (14), and the crank shaft (152) of the movable crank (15) is connected to the movable magnet (14) to prevent rotation.

5. The variable aperture and shutter integrated device according to claim 1, characterized in that: A diameter blade (6) is installed in the lower accommodating cavity between the drive ring (21) and the aperture blade (22). A blade light-transmitting hole (61) is opened in the middle position of the diameter blade (6) and is aligned with the light-transmitting hole (31) of the fixed seat. The diameter blade (6) is provided with a vertically penetrating circular hole (62) for each of the second pivot shafts (32) of the lower fixed seat (3), and the second pivot shafts (32) of the lower fixed seat (3) pass through the corresponding circular holes (62) of the diameter blade (6). The diameter blade (6) has a vertically penetrating and arc-shaped blade arc hole (63) on the drive ring convex shaft (213) of the drive ring (21), and each drive ring convex shaft (213) of the drive ring (21) passes through the corresponding blade arc hole (63) of the diameter blade (6).

6. The variable aperture and shutter integrated device according to claim 1, characterized in that: The upper surface of the intermediate partition (4) is provided with a partition flange (44) that contacts the lower surface of the shutter blade (11).

7. The variable aperture and shutter integrated device according to claim 1, characterized in that: The lower fixed seat (3) has a number of fixed seat rivets (33) arranged at intervals on its edge. The middle partition (4) has partition rivet holes (45) for each fixed seat rivet (33). Each fixed seat rivet (33) of the lower fixed seat (3) is pressed and fixed in the corresponding partition rivet hole (45).

8. The variable aperture and shutter integrated device according to claim 1, characterized in that: The edge of the middle partition (4) is provided with a number of partition rivet posts (46) arranged at intervals. The upper cover plate (5) is provided with cover plate rivet holes (52) corresponding to each partition rivet post (46). Each partition rivet post (46) of the middle partition (4) is respectively riveted and fixed in the corresponding cover plate rivet hole (52).

9. The variable aperture and shutter integrated device according to claim 1, characterized in that: The lower fixed base (3) is equipped with an FPC circuit board (7), and the coil winding and the stepper motor (23) are electrically connected to the FPC circuit board (7).

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