Wireless aperture remote control device for camera head

Abstract

The invention relates to the technical field of cameras, and provides a camera head wireless aperture remote control device, which comprises a camera head and a wireless remote controller in wireless communication connection with the camera head, and is characterized in that the camera head comprises a lens cone, the top end of the lens cone is in threaded connection with an end cover, the inner side of the lens cone is fixedly connected with a lens, and the top end of the inner side of the lens cone is provided with an aperture assembly; the aperture assembly comprises a first mounting plate, the outer edge of the top of the first mounting plate is fixedly connected with a plurality of columns, the top ends of the columns are fixedly connected with the same light guide plate, the center of the first mounting plate is rotatably connected with a rotating seat, and the top of the rotating seat is movably connected with a plurality of blades. And the bottom of the first mounting plate is provided with a regulation and control part for driving all the blades to synchronously approach or disperse. Through communication between the wireless remote controller and the camera head, a traditional wired mechanical structure is completely abandoned, the problems of cable winding, abrasion and the like in a multi-camera shooting or motion scene are solved, and the movement freedom degree of equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cameras, and in particular to a wireless aperture remote control device for a camera head. Background Art

[0002] In the field of cameras, we cannot arbitrarily change the diameter of a manufactured lens, so we add an aperture system. The main parameter controlled by the aperture system is exposure. Exposure is a very important parameter. During bright daytime, we want to receive less light; while at night when there is less light, we want to collect more light. At this time, the aperture structure plays a big role. It can control the size of the light area that passes through the camera lens.

[0003] After searching, the Chinese patent (publication number: CN103777433B) discloses "a multi-blade aperture adjustment device with filter switching, comprising a mounting base, a motor and a solenoid valve assembly arranged on one side of the motor mounted on the mounting base, a circular window provided on the mounting base surface, a boss provided on the inner side surface of the mounting base along the outer circumference of the circular window, a plurality of bosses distributed in a circumferential array provided on the inner side surface of the mounting base, a turntable mounted on the boss, a turntable through hole communicating with the circular window provided on the turntable, a plurality of shifting posts provided on the annular surface of the turntable, a shift fork provided on the outer circumference of the turntable, shifting teeth provided on the shift fork, a transmission device provided on one side of the shifting teeth for cooperating with the shifting teeth to drive the turntable to rotate, and the motor drives the transmission device to operate".

[0004] However, in the process of implementing relevant technologies, this type of patent has certain technical defects. Among them, the aperture control of this type of patent is mainly achieved through a wired mechanical structure or simple electronic signal transmission, and the lens aperture blades are connected through mechanical components such as gear sets and push rods. The photographer manually rotates the control ring or presses a button to drive the mechanism. This structure is prone to cable entanglement and interference in multi-camera shooting or motion scenes (such as the cable wear rate is high during movie slide shooting). In view of this, the present invention proposes a wireless aperture remote control device for a camera head. Summary of the Invention

[0005] The present invention provides a wireless aperture remote control device for a camera head, which solves the problem of easy cable entanglement and interference during multi-camera shooting in wired control.

[0006] The technical solution of the present invention is as follows: A wireless aperture remote control device for a camera head, comprising a camera head and a wireless remote controller wirelessly connected to the camera head, the camera head comprising a lens barrel, the top end of the lens barrel being threadedly connected to an end cap, the inner side of the lens barrel being fixedly connected to a lens, the top end of the inner side of the lens barrel being provided with an aperture assembly, the aperture assembly comprising a first mounting plate fixedly connected to the inner side of the lens barrel, the outer edge of the top of the first mounting plate being fixedly connected to a plurality of columns equiangularly distributed around the first mounting plate, the top ends of the plurality of columns being fixedly connected to the same light guide plate, the center position of the first mounting plate being rotatably connected to a rotating seat, the top end of the rotating seat being movably connected to a plurality of blades equiangularly distributed around the rotating seat, the bottom of the first mounting plate being provided with an adjustment control for driving all blades to synchronously move closer or disperse.

[0007] Preferably, the blades are equilateral triangles, and the light holes formed by all the blades are regular hexagons.

[0008] Preferably, the bottoms of the plurality of blades are fixedly connected to a sliding rod, the outer edge of the rotating seat is provided with a plurality of sliding grooves corresponding to the sliding rods one by one, and the plurality of sliding rods are clearance-matched with the corresponding sliding grooves.

[0009] Preferably, one end of the top of the first mounting plate is fixedly connected to a Hall sensor, the other end of the top of the first mounting plate is fixedly connected to a wireless controller, the Hall sensor is signal-connected to the wireless controller, and the wireless remote control is signal-connected to the wireless controller.

[0010] Preferably, the adjustment control unit includes an outer ring gear fixedly connected to the outside of the rotating seat, a first motor is fixedly installed on the bottom of the first mounting plate, the output shaft of the first motor is fixedly connected to a first gear, the first gear is engaged with the outer ring gear, and the first motor is electrically connected to the wireless controller.

[0011] Preferably, a cleaning assembly is provided above the lens, and the cleaning assembly includes a second mounting plate fixedly connected to the inner side of the lens barrel, the top of the second mounting plate is fixedly connected to a light guide tube, the top of the light guide tube is in contact with the first mounting plate, the bottom of the second mounting plate is rotatably connected to a rotating sleeve, one end of the bottom of the rotating sleeve is fixedly connected to a connecting seat, the bottom of the connecting seat is fixedly connected to an air nozzle, and a driving member for driving the rotating sleeve to rotate is provided on the inner side of the rotating sleeve.

[0012] Preferably, the light guide tube and the light guide plate are concentrically arranged, and the inner diameters of the light guide tube and the light guide plate are the same.

[0013] Preferably, the inlet end of the air nozzle is connected to a micro air pump via a conduit, the micro air pump is fixedly mounted on the bottom of the connecting base, and the micro air pump is electrically connected to the wireless controller.

[0014] Preferably, the driving member includes an inner ring gear fixedly connected to the inner side of the rotating sleeve, a second motor is fixedly installed on the top of the second mounting plate, the output shaft of the second motor is fixedly connected to a second gear, the second gear is engaged with the inner ring gear, and the second motor is electrically connected to the wireless controller.

[0015] Preferably, a light sensor is provided on the inner side of the lens barrel, and the light sensor is connected to the wireless controller signal.

[0016] The working principle and beneficial effects of the present invention are:

[0017] 1. By operating the wireless remote control to send an adjustment signal to the wireless controller, the wireless controller will control the first motor to start, causing the first gear to rotate. Since the first gear is engaged with the outer ring gear, the outer ring gear will rotate synchronously, causing the rotating seat to rotate synchronously. This causes the rotating seat and the slide bar to slide relative to each other and apply thrust to the slide bar, causing the slide bar to slide along the corresponding slide groove, which makes all the blades move towards or away from each other. At the same time, the interaction between two adjacent blades causes all the blades to deflect and the aperture size to change while always maintaining the same shape. At the same time, the Hall sensor detects the aperture opening in real time, so that the aperture size can be accurately adjusted. The entire adjustment process is wirelessly operated, solving the problem of cable entanglement caused by traditional wired operation.

[0018] 2. When the lens needs to be cleaned, a cleaning signal is sent to the wireless controller by operating the wireless remote control. The wireless controller will control the micro air pump and the second motor to start synchronously. After the micro air pump is started, gas is introduced into the air nozzle, so that the air nozzle sprays air flow to the surface of the lens for cleaning, so that the dust attached to the surface of the lens is cleaned. At the same time, the second motor drives the second gear to rotate, so that the inner gear ring rotates synchronously, which makes the rotating sleeve rotate synchronously, so that the connecting seat drives the air nozzle to rotate circumferentially, so that the air nozzle surrounds the lens for air jet cleaning, which greatly improves the cleaning effect of the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a schematic structural diagram of a wireless aperture remote control device for a camera head according to the present invention;

[0021] Figure 2 The structure of the camera head of the present invention is shown as follows Figure 1 ;

[0022] Figure 3 The structure of the camera head of the present invention is shown as follows Figure 2 ;

[0023] Figure 4 is a schematic structural diagram of the aperture assembly of the present invention;

[0024] Figure 5 It is a schematic diagram of the local structure of the present invention;

[0025] Figure 6 It is a structural diagram of the adjustment control unit of the present invention;

[0026] Figure 7 It is a schematic structural diagram of the cleaning component of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the driving member of the present invention;

[0028] Figure 9 This is a system block diagram of the present invention.

[0029] In the figure: 1. Camera head; 11. Lens barrel; 12. End cover; 13. Lens; 14. Aperture assembly; 141. First mounting plate; 142. Column; 143. Light guide plate; 144. Rotating seat; 145. Blade; 146. Adjustment control; 1461. Outer ring gear; 1462. First motor; 1463. First gear; 147. Hall sensor; 148. Wireless controller; 149. Sliding rod; 140. Slide groove; 15. Cleaning assembly; 151. Second mounting plate; 152. Light guide tube; 153. Rotating sleeve; 154. Connecting seat; 155. Air nozzle; 156. Driving member; 1561. Inner ring gear; 1562. Second motor; 1563. Second gear; 157. Micro air pump; 16. Cavity 1; 17. Cavity 2; 2. Wireless remote control DETAILED DESCRIPTION

[0030] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0031] Example 1:

[0032] like Figures 1 to 6As shown, this embodiment proposes a wireless aperture remote control device for a camera head, comprising a camera head 1 and a wireless remote controller 2 wirelessly connected to the camera head 1, the camera head 1 comprising a lens barrel 11, the top end of the lens barrel 11 being threadedly connected to an end cap 12, the inner side of the lens barrel 11 being fixedly connected to a lens 13, the top end of the inner side of the lens barrel 11 being provided with an aperture assembly 14, the aperture assembly 14 comprising a first mounting plate 141 fixedly connected to the inner side of the lens barrel 11, a plurality of columns 142 equiangularly distributed around the first mounting plate 141 being fixedly connected to the outer edge of the top of the first mounting plate 141, the top ends of the plurality of columns 142 being fixedly connected to the same light guide plate 143, the center position of the first mounting plate 141 being rotatably connected to a rotating seat 144, the rotating seat 144 The top of the movable seat 144 is movably connected to a number of blades 145 distributed at equal angles around the rotating seat 144. The blades 145 are equilateral triangles, and the light holes formed by all the blades 145 are regular hexagons. The bottoms of the blades 145 are fixedly connected to slide rods 149. The outer edge of the rotating seat 144 is provided with a number of slide grooves 140 corresponding to the slide rods 149 one by one. The slide rods 149 are clearance-matched with the corresponding slide grooves 140. The bottom of the first mounting plate 141 is provided with an adjustment control 146 for driving all the blades 145 to move together or disperse synchronously. The adjustment control 146 can be used to control all the blades 145 to move together or disperse synchronously, so that the size of the aperture formed by the blades 145 can be adjusted, thereby achieving adjustment of the aperture size.

[0033] Among them, one end of the top of the first mounting plate 141 is fixedly connected to a Hall sensor 147, and the other end of the top of the first mounting plate 141 is fixedly connected to a wireless controller 148. The Hall sensor 147 is signal-connected to the wireless controller 148, and the wireless remote control 2 is signal-connected to the wireless controller 148; the Hall sensor 147 is used to detect the position of the blade 145 in real time, thereby determining the aperture opening.

[0034] Among them, the adjustment control 146 includes an outer ring gear 1461 fixedly connected to the outside of the rotating base 144, a first motor 1462 is fixedly installed on the bottom of the first mounting plate 141, the output shaft of the first motor 1462 is fixedly connected to the first gear 1463, the first gear 1463 is engaged with the outer ring gear 1461, and the first motor 1462 is electrically connected to the wireless controller 148.

[0035] Working principle: By operating the wireless remote control 2 to send an adjustment signal to the wireless controller 148, the wireless controller 148 will control the first motor 1462 to start, so that the first gear 1463 rotates. Since the first gear 1463 is engaged with the outer ring gear 1461, the outer ring gear 1461 will rotate synchronously, so that the rotating seat 144 rotates synchronously, which makes the rotating seat 144 and the slide bar 149 slide relative to each other and apply thrust to the slide bar 149, so that the slide bar 149 slides along the corresponding slide groove 140, which makes all the blades 145 move toward or away from each other. At the same time, the two adjacent blades 145 interact with each other, so that all the blades 145 deflect and the aperture size changes and always maintains the same shape. At the same time, the Hall sensor 147 detects the aperture opening in real time, so that the aperture size can be accurately adjusted. The entire adjustment process is wirelessly operated, which solves the problem of cable entanglement caused by traditional wired operation.

[0036] Example 2:

[0037] like Figures 7 to 9 As shown, this embodiment is a further optimization of the first embodiment. The only difference from the first embodiment is that a cleaning assembly 15 is provided above the lens 13. The cleaning assembly 15 includes a second mounting plate 151 fixedly connected to the inner side of the lens barrel 11. The top of the second mounting plate 151 is fixedly connected to a light guide tube 152. The light guide tube 152 is concentrically arranged with the light guide plate 143, and the inner diameter of the light guide tube 152 is the same as that of the light guide plate 143. The top of the light guide tube 152 contacts the first mounting plate 141. The bottom of the second mounting plate 151 is rotatably connected to a rotating sleeve 153. One end of the bottom of the rotating sleeve 153 is fixedly connected to a connecting seat 154. The bottom of the connecting seat 154 is fixedly connected to an air nozzle. 155, the inlet end of the air nozzle 155 is connected to a micro air pump 157 through a conduit, the micro air pump 157 is fixedly mounted on the bottom of the connecting seat 154, the micro air pump 157 is electrically connected to the wireless controller 148, and a driving member 156 for driving the rotating sleeve 153 to rotate is provided on the inner side of the rotating sleeve 153; the driving member 156 includes an inner gear ring 1561 fixedly connected to the inner side of the rotating sleeve 153, a second motor 1562 is fixedly mounted on the top of the second mounting plate 151, the output shaft of the second motor 1562 is fixedly connected to a second gear 1563, the second gear 1563 is meshed with the inner gear ring 1561, and the second motor 1562 is electrically connected to the wireless controller 148.

[0038] When the lens 13 needs to be cleaned, a cleaning signal is sent to the wireless controller 148 by operating the wireless remote controller 2. The wireless controller 148 will control the micro air pump 157 and the second motor 1562 to start synchronously. After the micro air pump 157 is started, gas is introduced into the air nozzle 155, so that the air nozzle 155 sprays air flow toward the surface of the lens 13 for cleaning, so that the dust attached to the surface of the lens 13 is cleaned. At the same time, the second motor 1562 drives the second gear 1563 to rotate, so that the inner ring gear 1561 rotates synchronously, which makes the rotating sleeve 153 rotate synchronously, so that the connecting seat 154 drives the air nozzle 155 to rotate circumferentially, so that the air nozzle 155 surrounds the lens 13 for jet cleaning, which greatly improves the cleaning effect of the lens 13.

[0039] Furthermore, a light sensor (not marked in the figure) is provided on the inner side of the lens barrel 11. The light sensor model is BH1750. The light sensor is connected to the wireless controller 148 for signal connection. The light sensor is used to detect the light intensity at the light inlet of the lens barrel 11.

[0040] The light sensor can detect the light intensity at the light inlet of the detection barrel 11 in real time, and the Hall sensor 147 detects the aperture opening. The wireless controller 148 processes the detection data and responds to it, and automatically adjusts the aperture size according to the light intensity. The specific adjustment process is as follows: the wireless controller 148 controls the first motor 1462 to start, so that the first gear 1463 rotates. Since the first gear 1463 is engaged with the outer ring gear 1461, the outer ring gear 1461 rotates synchronously, causing the rotating base 144 to rotate synchronously, which makes the rotating base 144 rotate synchronously with the sliding base 144. The rod 149 slides relative to each other and applies a thrust to the slide rod 149, causing the slide rod 149 to slide along the corresponding slide groove 140, which makes all the blades 145 move toward or away from each other. At the same time, the two adjacent blades 145 interact with each other, causing all the blades 145 to deflect and the aperture size to change while always maintaining the same shape. At the same time, the Hall sensor 147 detects the aperture opening in real time, so that the aperture size can be accurately adjusted. The entire process can realize dynamic and automatic adjustment of the aperture size, further improving the actual shooting effect.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wireless aperture remote control device for a camera head, comprising a camera head (1) and a wireless remote control (2) wirelessly connected to the camera head (1), wherein the camera head (1) comprises a lens barrel (11), a top end cap (12) being threadedly connected to the lens barrel (11), and a lens (13) being fixedly connected to the inner side of the lens barrel (11), characterized in that: An aperture assembly (14) is provided at the top end of the inner side of the lens barrel (11), and the aperture assembly (14) comprises a first mounting plate (141) fixedly connected to the inner side of the lens barrel (11); a plurality of columns (142) are fixedly connected to the outer edge of the top end of the first mounting plate (141) and are distributed at equal angles around the first mounting plate (141); the top ends of the plurality of columns (142) are fixedly connected to the same light guide plate (143); a rotating seat (144) is rotatably connected to the center of the first mounting plate (141); a plurality of blades (145) are movably connected to the top end of the rotating seat (144) and are distributed at equal angles around the rotating seat (144); and an adjustment control (146) for driving all the blades (145) to synchronously move closer or disperse is provided at the bottom end of the first mounting plate (141).

2. A wireless aperture remote control device for a camera head according to claim 1, characterized in that: The blades (145) are in the shape of regular triangles, and the light holes formed by all the blades (145) are in the shape of regular hexagons.

3. The wireless aperture remote control device for a camera head according to claim 1, characterized in that: The bottoms of the plurality of blades (145) are fixedly connected to a slide rod (149), and the outer edge of the rotating seat (144) is provided with a plurality of slide grooves (140) corresponding to the slide rods (149), and the plurality of slide rods (149) are clearance-matched with the corresponding slide grooves (140).

4. A wireless aperture remote control device for a camera head according to claim 3, characterized in that: One end of the top of the first mounting plate (141) is fixedly connected to a Hall sensor (147), and the other end of the top of the first mounting plate (141) is fixedly connected to a wireless controller (148). The Hall sensor (147) is signal-connected to the wireless controller (148), and the wireless remote controller (2) is signal-connected to the wireless controller (148).

5. The wireless aperture remote control device for a camera head according to claim 4, characterized in that: The adjustment control unit (146) includes an outer gear ring (1461) fixedly connected to the outside of the rotating seat (144); a first motor (1462) is fixedly installed on the bottom of the first mounting plate (141); an output shaft of the first motor (1462) is fixedly connected to a first gear (1463); the first gear (1463) is meshed with the outer gear ring (1461); and the first motor (1462) is electrically connected to the wireless controller (148).

6. The wireless aperture remote control device for a camera head according to claim 5, characterized in that: A cleaning assembly (15) is provided above the lens (13), and the cleaning assembly (15) comprises a second mounting plate (151) fixedly connected to the inner side of the lens barrel (11); a light guide tube (152) is fixedly connected to the top of the second mounting plate (151); the top of the light guide tube (152) contacts the first mounting plate (141); a rotating sleeve (153) is rotatably connected to the bottom of the second mounting plate (151); one end of the bottom of the rotating sleeve (153) is fixedly connected to a connecting seat (154); the bottom of the connecting seat (154) is fixedly connected to an air nozzle (155); and a driving member (156) for driving the rotating sleeve (153) to rotate is provided on the inner side of the rotating sleeve (153).

7. A wireless aperture remote control device for a camera head according to claim 6, characterized in that: The light guide tube (152) and the light guide plate (143) are concentrically arranged, and the inner diameters of the light guide tube (152) and the light guide plate (143) are the same.

8. The wireless aperture remote control device for a camera head according to claim 6, characterized in that: The inlet end of the air nozzle (155) is connected to a micro air pump (157) through a conduit. The micro air pump (157) is fixedly mounted on the bottom of the connecting seat (154). The micro air pump (157) is electrically connected to the wireless controller (148).

9. The wireless aperture remote control device for a camera head according to claim 8, characterized in that: The driving member (156) includes an inner gear ring (1561) fixedly connected to the inner side of the rotating sleeve (153); a second motor (1562) is fixedly installed on the top of the second mounting plate (151); an output shaft of the second motor (1562) is fixedly connected to a second gear (1563); the second gear (1563) is meshed with the inner gear ring (1561); and the second motor (1562) is electrically connected to the wireless controller (148).

10. The wireless aperture remote control device for a camera head according to claim 9, characterized in that: A light sensor is provided on the inner side of the lens barrel (11), and the light sensor is connected to a wireless controller (148) via a signal.

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