Photographic optical device and aperture control method thereof

Abstract

The present invention discloses a photographic optical device and an aperture control method thereof, and relates to the technical field of optical devices; in order to solve the problem of limited use scenarios; the device comprises a body and a bracket on which the body is arranged, and the bottom outer wall of the bracket is provided with four movable legs; the top outer wall of the bracket is provided with a groove, the inner wall of the groove is provided with a lifting plate, and the bottom outer wall of the lifting plate is provided with a fixing rod; the aperture control method of the device comprises the following steps: adjusting the shooting angle of the body, turning on the fill light, and the light passes through the circular hole to fill the lens; starting the third motor to drive the shading plate to rotate, and gradually shielding the circular hole. The present invention pushes the bracket to move the shooting position by moving the legs, which is easy to carry and saves manpower. When the bracket moves to the shooting position, the rotating limit plate is adjusted to make the fixing pin go down, and the fixing pin is pressed to the ground. The installation and disassembly are convenient and simple, and the movement of the device during use is effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of optical equipment, and in particular to a photographic optical equipment and an aperture control method thereof. Background Art

[0002] Optical imaging devices (such as video cameras, digital cameras, etc.) are usually equipped with a lens. In order to control the amount of light that enters the photosensitive surface of the optical imaging device through the lens, an aperture is installed inside the lens. In addition, there is an optical system with a focus lens group that can perform macro photography. Different opening and closing degrees of the aperture correspond to different amounts of light entering. In this optical system, it is known that the aperture value changes with the movement of the focus lens group. The change in the aperture value becomes the cause of optical principle phenomena such as the decrease in the amount of light on the image plane when the photography magnification increases. In current optical imaging devices, the opening and closing degree of the aperture depends on the control voltage provided to the aperture by the imaging device.

[0003] After searching, the Chinese patent application number CN201611121976.X discloses a dual-camera camera structure of a terminal device and a method of using the same. The first camera and the second camera are mounted on a first telescopic rod in an overlapping manner. The first camera is mounted with a first microphone, and the audio recorded by the first microphone and the video recorded by the first camera are stored as the same audio and video; the second camera is mounted with a second microphone, and the audio recorded by the second microphone and the video recorded by the second camera are stored as the same audio and video; the camera angles of the first camera and the second camera partially overlap. The dual-camera camera structure of the terminal device and the method of using the same in the above patent have the following shortcomings: the shooting mechanism and the telescopic rod are an integrated structure, which is inconvenient to move during use, so it can only be shot at a fixed position, and the use scene is limited. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a photographic optical device and an aperture control method thereof.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A photographic optical device comprises a body and a bracket on which the body is arranged, wherein the bottom outer wall of the bracket is provided with four movable legs; the top outer wall of the bracket is provided with a groove, the inner wall of the groove is provided with a lifting plate, and the bottom outer wall of the lifting plate is provided with a fixing rod; the top inner wall of the bracket is provided with a placement box, the outer wall of one side of the placement box is provided with a support plate, the top outer wall of the support plate is provided with a square groove, a screw is placed on the inner wall of the square groove, the top outer wall of the screw is provided with a long groove, the long groove forms a sliding fit with the fixing rod, and a baffle is provided at the bottom end of the screw; the top inner wall of the bracket is provided with a fixing seat.

[0007] Preferably: a first motor is provided on the bottom inner wall of the fixed seat, the output end of the first motor is rotatably connected to the first bevel gear through a connecting shaft, a second bevel gear is provided on the outer wall of the screw, the outer wall of the second bevel gear is meshed with the outer wall of the first bevel gear, a limiting groove is provided on the bottom outer wall of the second bevel gear, two sliding seats are provided on the inner wall of the limiting groove, two limiting columns are provided on the top outer wall of the support plate, the top outer walls of the two limiting columns are respectively connected to the bottom outer walls of the two sliding seats by bolts, and the two limiting columns form a sliding fit with the limiting groove.

[0008] Preferably: a cylinder is arranged between the two legs of the bracket, the outer wall of the cylinder is rotatably connected to the limit plate, and the bottom outer wall of the limit plate is provided with three fixing pins.

[0009] Preferably: the top outer wall of the lifting plate is provided with four bottom plates, one side outer wall of the four bottom plates is provided with a spring, and the other end of the four springs is provided with a push plate.

[0010] Preferably: a rotating column is provided on the bottom outer wall of the body, connecting plates are provided at both ends of the rotating column, the bottom outer walls of the two connecting plates are provided with the same upper support plate, the top outer wall of the upper support plate is provided with an electric telescopic rod, the bottom outer wall of the upper support plate is provided with a lower support plate, the bottom inner wall of the lower support plate is provided with a second motor, and the output end of the second motor is connected to the input end of the upper support plate through a coupling.

[0011] Preferably: handles are provided on both side outer walls of the body, a lens barrel is provided on one side outer wall of the body, a zoom ring and a focus ring are rotatably connected to the outer wall of the lens barrel, a lens is provided on the inner wall of the lens barrel, more than four fill lights are provided on the inner wall of the lens barrel near the lens, and a fixing plate is provided on the inner wall of the lens barrel.

[0012] Preferably: one side outer wall of the fixing plate is provided with more than four circular holes, the number of the circular holes corresponds to the number of the fill lights, one side inner wall of the fixing plate is provided with more than four gears, one side outer wall of the fixing plate is provided with a top plate, the top outer wall of the top plate is provided with a third motor, the output end of the third motor is connected to the input end of one of the gears through a coaxial shaft, one side outer wall of the fixing plate is rotatably connected with more than four shading plates through a rotating shaft, one end of the rotating shaft is connected to the other end of the gear through a bolt, and the number of the shading plates corresponds to the number of the circular holes.

[0013] Preferably: a control module is provided on an inner wall of one side of the body, a switch control end of the third motor is electrically connected to the control module, a warning light is provided on an outer wall of one side of the body, the switch control module of the warning light is electrically connected to the control module, a data processing module is provided on an inner wall of one side of the body, and a signal output end of the data processing module is electrically connected to the control module.

[0014] A method for controlling the aperture of a photographic optical device comprises the following steps:

[0015] S1: Adjust the camera's shooting angle, turn on the fill light, and let the light pass through the circular hole to fill in the lens;

[0016] S2: Start the third motor to drive the shading plate to rotate, and gradually cover the circular hole;

[0017] S3: During the occlusion period, the lens continuously captures images;

[0018] S4: The data processing module extracts features from the captured images and compares them to determine the image captured by the best controlled aperture angle;

[0019] S5: The control module controls the third motor to turn off and the prompt light to turn on, completing the aperture control.

[0020] The beneficial effects of the present invention are:

[0021] By providing structures such as movable legs and limit plates, the bracket can be pushed to move the shooting position by moving the legs, which is easy to carry and saves manpower. When the bracket is moved to the shooting position, the limit plate is adjusted and rotated to make the fixing pin go down and press the fixing pin to the ground to complete the fixing of the bracket. The installation and disassembly are convenient and simple, which effectively avoids the movement of the equipment during use and affects the shooting quality.

[0022] By setting structures such as limiting columns and limiting grooves, the first motor is started, so that the first bevel gear drives the second bevel gear to rotate. During the rotation of the second bevel gear, it is limited by the limiting columns and limiting grooves so that it will not move up, and the screw rod is moved up and down through the thread, so that the lifting plate is moved up and down, which is convenient for adjusting the height of the body for shooting, and the materials needed for shooting can be placed in the placement box for easy retrieval.

[0023] 1. By providing structures such as a spring and a fixing seat, after the shooting assembly is placed on the lifting plate, the push plate moves forward under the elastic reset of the spring, clamps and fixes the outer wall of the shooting assembly to prevent the shooting assembly from falling off during use. When using a fill light, the light passes through the circular hole to fill the lens, and the fixing seat limits the lifting plate downward to prevent the lifting plate from falling out of the bracket when moving downward.

[0024] 2. By providing structures such as an electric telescopic rod and a rotating column, when in use, the body can be easily moved by the handle, and handheld shooting can be performed according to actual conditions. The electric telescopic rod is started to push the body to make slight adjustments to the upper and lower angles relative to the rotating column. The second motor is started to drive the upper support plate to rotate, which is convenient for adjusting the shooting rotation angle of the body. The structure is simple, and different shooting angles can be flexibly adjusted to achieve better imaging effects.

[0025] 3. By providing structures such as a data processing module and a sunshade, the third motor is started according to the light intensity requirement, and the sunshade is driven to rotate through the gears to block the circular hole. During the blocking period of the sunshade, images are continuously photographed. The data processing module compares the collected images and optimizes the optimal aperture control angle, and transmits a signal to the control module, which is electrically connected to control the third motor to turn off and the prompt light to turn on, so as to prompt people to use it normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the main structure of a photographic optical device proposed by the present invention;

[0027] Figure 2 A schematic diagram of a side cross-sectional structure of a photographic optical device proposed by the present invention;

[0028] Figure 3 A schematic diagram of a support structure of a photographic optical device proposed by the present invention;

[0029] Figure 4 A schematic diagram of a side cross-sectional structure of a photographic optical device proposed by the present invention;

[0030] Figure 5 A schematic diagram of a rear cross-sectional structure of a photographic optical device proposed by the present invention;

[0031] Figure 6 A schematic diagram of a rear cross-sectional structure of a fixing plate of a photographic optical device proposed by the present invention;

[0032] Figure 7 The present invention is a schematic diagram of a circuit flow of a photographic optical device.

[0033] In the figure: 1 body, 2 bracket, 3 moving leg, 4 baffle, 5 screw, 6 placement box, 7 rotating column, 8 fixing plate, 9 prompt light, 10 lens, 11 fill light, 12 shading plate, 13 lens barrel, 14 handle, 15 first bevel gear, 16 first motor, 17 fixing seat, 18 limiting groove, 19 limiting column, 20 supporting plate, 21 second bevel gear, 22 lifting plate, 23 push plate, 24 spring, 25 limiting plate, 26 cylinder, 27 connecting plate, 28 upper support plate, 29 second motor, 30 lower support plate, 31 zoom ring, 32 focus ring, 33 control module, 34 data processing module, 35 electric telescopic rod, 36 gear, 37 round hole, 38 third motor. DETAILED DESCRIPTION

[0034] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0037] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0038] Embodiment 1:

[0039] A photographic optical device, such as Figure 1 and Figure 2 As shown, it includes a body 1 and a bracket 2 for placing the body 1, the bottom outer wall of the bracket 2 is rotatably connected with four moving legs 3 through a rotating shaft; a groove is provided on the top outer wall of the bracket 2, and a lifting plate 22 is clamped on the inner wall of the groove, and a fixing rod is fixed to the bottom outer wall of the lifting plate 22 by bolts; a placement box 6 is fixed to the top inner wall of the bracket 2 by bolts, and a support plate 20 is fixed to the outer wall of one side of the placement box 6 by bolts, a square groove is provided on the top outer wall of the support plate 20, a screw 5 is placed on the inner wall of the square groove, a long groove is provided on the top outer wall of the screw 5, and the long groove forms a sliding fit with the fixing rod, and a baffle 4 is fixed to the bottom end of the screw 5 by bolts; a fixing seat 17 is fixed to the top inner wall of the bracket 2 by bolts, and the fixing seat 17 has a downward limit effect on the lifting plate 22 to prevent the lifting plate 22 from escaping from the bracket 2 when it moves downward, and the placement box 6 can be placed with materials needed for shooting, which is convenient for taking and placing, and the bracket 2 is pushed to move the shooting position through the moving legs 3, which is convenient for carrying and saves manpower.

[0040] In order to adjust the lifting angle of the body 1 during shooting; Figure 2As shown, the bottom inner wall of the fixed seat 17 is fixed with the first motor 16 by bolts, and the output end of the first motor 16 is rotatably connected with the first bevel gear 15 through the connecting shaft, and the outer wall of the screw rod 5 is connected with the second bevel gear 21 by threading, and the outer wall of the second bevel gear 21 is meshed with the outer wall of the first bevel gear 15, and the bottom outer wall of the second bevel gear 21 is provided with a limiting groove 18, and the inner wall of the limiting groove 18 is fixed with two sliding seats by bolts, and the top outer wall of the support plate 20 is fixed with two limiting columns 19 by bolts, and the top outer walls of the two limiting columns 19 are respectively connected with the bottom outer walls of the two sliding seats by bolts, and the two limiting columns 19 form a sliding fit with the limiting groove 18, and the first motor 16 is started, so that the first bevel gear 15 drives the second bevel gear 21 to rotate, and the second bevel gear 21 is limited by the limiting columns 19 and the limiting groove 18 during the rotation process, so it will not move up, and the screw rod 5 is moved up and down through the thread, so that the lifting plate 22 moves up and down, which is convenient for adjusting the height of the body 1 for shooting.

[0041] To avoid movement of the device during use; Figure 3 As shown, a cylinder (26) is fixed between the two legs of the bracket (2) by bolts, and the outer wall of the cylinder 26 is rotatably connected to the limit plate 25. The bottom outer wall of the limit plate 25 is fixed with three fixing pins by bolts. When the bracket 2 is moved to the shooting position, the limit plate 25 is adjusted and rotated so that the fixing pins are downward and pressed to the ground, thereby completing the fixing of the bracket 2 and preventing the device from moving during use and affecting the shooting quality.

[0042] In order to clamp and fix the outer wall of the shooting component; Figure 3 As shown, the top outer wall of the lifting plate 22 is fixed with four bottom plates by bolts, one side outer wall of the four bottom plates is fixed with springs 24 by bolts, and the other ends of the four springs 24 are fixed with push plates 23 by bolts. After the shooting assembly is placed on the lifting plate 22, the push plate 23 moves forward under the elastic reset of the spring 24 to clamp and fix the outer wall of the shooting assembly to prevent the shooting assembly from falling off during use.

[0043] In order to adjust the shooting angle; Figure 1 , Figure 4 and Figure 5As shown, a rotating column 7 is fixed to the bottom outer wall of the body 1 by bolts, and two ends of the rotating column 7 are rotatably connected to connecting plates 27 through rotating shafts, and the bottom outer walls of the two connecting plates 27 are fixed to the same upper support plate 28 by bolts, and the top outer wall of the upper support plate 28 is fixed to an electric telescopic rod 35 by bolts, and the bottom outer wall of the upper support plate 28 is rotatably connected to the lower support plate 30 by a rotating shaft, and the bottom inner wall of the lower support plate 30 is fixed to a second motor 29 by bolts, and the output end of the second motor 29 is connected to the input end of the upper support plate 28 through a coupling. When in use, the electric telescopic rod 35 is started to push the body 1, so that it can make slight adjustments to the up and down angles with the rotating column 7 as the relative position, and the second motor 29 is started to drive the upper support plate 28 to rotate, so as to facilitate the adjustment of the shooting rotation angle of the body 1.

[0044] To facilitate handheld shooting; Figure 1 , Figure 2 and Figure 4 As shown, handles 14 are fixed to the outer walls of both sides of the body 1 by bolts, a lens barrel 13 is fixed to the outer wall of one side of the body 1 by bolts, a zoom ring 31 and a focus ring 32 are rotatably connected to the outer wall of the lens barrel 13, a lens 10 is fixed to the inner wall of the lens barrel 13 by bolts, more than four fill lights 11 are fixed to the inner wall of the lens barrel 13 close to the lens 10 by bolts, a fixing plate 8 is clamped on the inner wall of the lens barrel 13, the handle 14 is used to facilitate the movement of the body 1, and handheld shooting can be performed according to actual conditions, the fill light 11 fills in the image captured by the lens 10, and the zoom ring 31 and the focus ring 32 are used to facilitate the adjustment of the image shooting clarity.

[0045] In order to facilitate the control of aperture; Figure 1 and Figure 6 As shown, one side outer wall of the fixed plate 8 is provided with more than four circular holes 37, and the number of the circular holes 37 corresponds to the number of the fill light 11; one side inner wall of the fixed plate 8 is rotatably connected with more than four gears 36 through a rotating shaft; one side outer wall of the fixed plate 8 is fixed with a top plate through bolts; the top outer wall of the top plate is fixed with a third motor 38 through bolts; the output end of the third motor 38 is connected with the input end of one of the gears 36 through a concentric shaft; one side outer wall of the fixed plate 8 is rotatably connected with more than four shading plates 12 through a rotating shaft, one end of the rotating shaft is connected with the other end of the gear 36 through a bolt; the number of the shading plates 12 corresponds to the number of the circular holes 37; when the fill light 11 is used, light passes through the circular holes 37 to fill light to the lens 10; according to the light intensity requirement, the third motor 38 is started, and the shading plate 12 is driven to rotate through the gear 36, thereby blocking the circular hole 37; during the blocking period of the shading plate 12, the image is continuously captured, and the optimal aperture control angle is selected.

[0046] In order to optimize the best aperture angle; Figure 5 and Figure 7As shown, a control module 33 is fixed to the inner wall of one side of the body 1 by bolts, and the switch control end of the third motor 38 is electrically connected to the control module 33. A prompt light 9 is fixed to the outer wall of one side of the body 1 by bolts, and the switch control module of the prompt light 9 is electrically connected to the control module 33. A data processing module 34 is fixed to the inner wall of one side of the body 1 by bolts, and the signal output end of the data processing module 34 is electrically connected to the control module 33. When adjusting the aperture, since the lens 10 continuously shoots, the data processing module 34 compares the images taken by different apertures, selects the clearest image taken by controlling the aperture adjustment angle, and transmits a signal to the control module 33 after comparison, which is electrically connected to control the third motor 38 to turn off and the prompt light 9 to turn on, so as to prompt people to use it normally.

[0047] When the present embodiment is in use, the fixing seat 17 limits the lifting plate 22 downwards to prevent the lifting plate 22 from being separated from the bracket 2 when it moves downwards. The materials needed for shooting can be placed in the placement box 6 for easy access. The bracket 2 is pushed to move the shooting position by moving the legs 3. When the bracket 2 moves to the shooting position, the rotating limit plate 25 is adjusted to make the fixing pin move downwards and press the fixing pin to the ground to complete the fixing of the bracket 2. After the shooting assembly is placed on the lifting plate 22, the push plate 23 moves forward under the elastic reset of the spring 24 to clamp and fix the outer wall of the shooting assembly. The first motor 16 is started to make the first bevel gear 15 drive the second bevel gear 21 to rotate. During the rotation of the second bevel gear 21, it is limited by the limit column 19 and the limit groove 18 so that it will not move upward. Moreover, the screw rod 5 moves up and down through the thread, so that the lifting plate 22 moves up and down, which is convenient for adjustment. For shooting at a height of the body 1, the electric telescopic rod 35 is started to push the body 1 so that it can make slight adjustments to the up and down angles with the rotating column 7 as the relative position. The second motor 29 is started to drive the upper support plate 28 to rotate, so as to adjust the shooting rotation angle of the body 1. The handle 14 is used to facilitate the movement of the body 1, and handheld shooting can be performed according to actual conditions. When the fill light 11 is used, light passes through the circular hole 37 to fill the lens 10. According to the light intensity requirement, the third motor 38 is started to drive the shading plate 12 to rotate through the gear 36, so as to block the circular hole 37. During the blocking period of the shading plate 12, the shooting graphics are continuously performed. The data processing module 34 compares the images taken with different apertures, selects the clearest image taken with the aperture adjustment angle, and transmits a signal to the control module 33 after comparison. The electrical connection controls the third motor 38 to turn off and the prompt light 9 to turn on, so as to prompt people for normal use.

[0048] Embodiment 2:

[0049] A method for controlling the aperture of a photographic optical device according to embodiment 1, Figure 1-7 As shown, the following steps are included:

[0050] S1: Adjust the shooting angle of the camera body 1, turn on the fill light 11, and let the light pass through the circular hole 37 to fill the lens 10;

[0051] S2: starting the third motor 38 to drive the shading plate 12 to rotate, gradually covering the circular hole 37;

[0052] S3: During the occlusion period, the lens 10 continuously captures images;

[0053] S4: The data processing module 34 extracts features from the captured images and compares them to determine the image captured by the best controlled aperture angle;

[0054] S5: The control module 33 controls the third motor 38 to turn off and the prompt light 9 to turn on, thereby completing the aperture control.

[0055] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A photographic optical device, comprising a body (1) and a support (2) for mounting the body (1), characterized in that: The bottom outer wall of the bracket (2) is provided with four movable legs (3); the top outer wall of the bracket (2) is provided with a groove, the inner wall of the groove is provided with a lifting plate (22), and the bottom outer wall of the lifting plate (22) is provided with a fixing rod; the top inner wall of the bracket (2) is provided with a placement box (6), one side outer wall of the placement box (6) is provided with a support plate (20), the top outer wall of the support plate (20) is provided with a square groove, the inner wall of the square groove is provided with a screw (5), the top outer wall of the screw (5) is provided with a long groove, the long groove and the fixing rod form a sliding fit, and the bottom end of the screw (5) is provided with a baffle (4); the top inner wall of the bracket (2) is provided with a fixing seat (17); A first motor (16) is arranged on the inner wall of the bottom of the fixing seat (17); the output end of the first motor (16) is rotatably connected to the first bevel gear (15) via a connecting shaft; a second bevel gear (21) is arranged on the outer wall of the screw rod (5); the outer wall of the second bevel gear (21) is meshed with the outer wall of the first bevel gear (15); a limiting groove (18) is arranged on the outer wall of the bottom of the second bevel gear (21); two sliding seats are arranged on the inner wall of the limiting groove (18); two limiting columns (19) are arranged on the top outer wall of the support plate (20); the top outer walls of the two limiting columns (19) are connected to the bottom outer walls of the two sliding seats via bolts respectively; the two limiting columns (19) form a sliding fit with the limiting groove (18); A cylinder (26) is provided between the two legs of the bracket (2), the outer wall of the cylinder (26) is rotatably connected to the limit plate (25), and the bottom outer wall of the limit plate (25) is provided with three fixing pins; The top outer wall of the lifting plate (22) is provided with four bottom plates, one side outer wall of each of the four bottom plates is provided with a spring (24), and the other end of each of the four springs (24) is provided with a push plate (23); The bottom outer wall of the machine body (1) is provided with a rotating column (7), and connecting plates (27) are respectively provided at both ends of the rotating column (7). The bottom outer walls of the two connecting plates (27) are provided with a same upper support plate (28), and the top outer wall of the upper support plate (28) is provided with an electric telescopic rod (35). The electric telescopic rod (35) is activated to push the machine body (1) so that the machine body (1) can be slightly adjusted up and down with the rotating column (7) as the relative position. The bottom outer wall of the upper support plate (28) is provided with a lower support plate (30), and the bottom inner wall of the lower support plate (30) is provided with a second motor (29), and the output end of the second motor (29) is connected to the input end of the upper support plate (28) through a coupling.

2. A photographic optical device according to claim 1, characterized in that: The outer walls of both sides of the body (1) are provided with handles (14), the outer wall of one side of the body (1) is provided with a lens barrel (13), the outer wall of the lens barrel (13) is rotatably connected to a zoom ring (31) and a focus ring (32), the inner wall of the lens barrel (13) is provided with a lens (10), the inner wall of the lens barrel (13) close to the lens (10) is provided with more than four fill lights (11), and the inner wall of the lens barrel (13) is provided with a fixing plate (8).

3. A photographic optical device according to claim 2, characterized in that: One side outer wall of the fixing plate (8) is provided with more than four circular holes (37), the number of the circular holes (37) corresponds to the number of the fill light (11), one side inner wall of the fixing plate (8) is provided with more than four gears (36), one side outer wall of the fixing plate (8) is provided with a top plate, the top outer wall of the top plate is provided with a third motor (38), the output end of the third motor (38) is connected to the input end of one of the gears 36 via a coaxial shaft, one side outer wall of the fixing plate (8) is rotatably connected to more than four shading plates (12) via a rotating shaft, one end of the rotating shaft is connected to the other end of the gear (36) via a bolt, and the number of the shading plates (12) corresponds to the number of the circular holes (37).

4. A photographic optical device according to claim 3, characterized in that: A control module (33) is provided on an inner wall of one side of the machine body (1); a switch control end of the third motor (38) is electrically connected to the control module (33); a warning light (9) is provided on an outer wall of one side of the machine body (1); a switch control module of the warning light (9) is electrically connected to the control module (33); a data processing module (34) is provided on an inner wall of one side of the machine body (1); a signal output end of the data processing module (34) is electrically connected to the control module (33).

5. A method for controlling the aperture of a photographic optical device according to any one of claims 1 to 4, characterized in that: The steps include: S1: adjusting the shooting angle of the body (1), turning on the fill light (11), and allowing light to pass through the circular hole (37) to fill in the lens (10); S2: starting the third motor (38) to drive the shading plate (12) to rotate, thereby gradually covering the circular hole (37); S3: During the occlusion period, the lens (10) continuously captures images; S4: the data processing module (34) extracts features from the captured image and compares them to determine the image captured by the optimally controlled aperture angle; S5: The control module (33) controls the third motor (38) to turn off and the prompt light (9) to turn on, thereby completing the aperture control.

Images