Electronic ring and lens adjusting device

Abstract

The utility model discloses an electronic ring and a lens adjusting device, and belongs to the field of shooting auxiliary equipment. The shell comprises an installation space used for being arranged on an installation object in a sleeving mode; the shell further comprises a mounting cavity; the electronic ring main board is mounted in the mounting cavity; the display screen is electrically connected with the electronic ring mainboard, is mounted on the shell, can be exposed out of the shell and is used for displaying lens parameter data; and the first connector is arranged in the mounting cavity, is electrically connected with the electronic ring mainboard, can be exposed out of the shell and is used for being electrically connected with a mounting object. Compared with the prior art, the electronic ring can be connected with the control panel of the hand wheel through the first connector, receives lens parameter data of the hand wheel, and displays the lens parameter data through the display screen, so that the lens parameters are convenient to mark and adjust.

Description

Technical Field

[0001] The utility model belongs to the field of shooting auxiliary equipment, and in particular relates to an electronic ring and a lens adjusting device. Background Art

[0002] When shooting with a camera, different compositions often require different lens parameters, such as zoom, focus, aperture, etc., so it is necessary to rotate the lens to adjust the lens to capture the image. To facilitate lens adjustment, follow focus devices have appeared on the market. They usually include a main body and a handwheel. The handwheel is often equipped with a white ring. The white ring allows users to mark parameters and adjust the lens according to these marked points during actual shooting. However, some users may find it inconvenient to manually mark with the white ring, which affects their shooting effect. Utility Model Content

[0003] In order to solve the above problems, the purpose of the present invention is to provide an electronic ring and a lens adjustment device, which can conveniently mark lens parameters and facilitate adjustment of lens parameters.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] The utility model provides an electronic ring, comprising:

[0006] The housing includes an installation space for being mounted on an installation object; the housing also includes an installation cavity;

[0007] An electronic ring mainboard is installed in the installation cavity;

[0008] A display screen, electrically connected to the electronic ring mainboard, mounted on the housing and capable of being exposed from the housing, for displaying lens parameter data;

[0009] The first connector is arranged in the installation cavity and electrically connected to the electronic ring mainboard, and can be exposed from the shell to be electrically connected to the installation object.

[0010] Furthermore, a first magnetic member or a positioning protrusion for positioning and mounting the electronic ring on an installation object is provided on an outer side wall of the shell.

[0011] Furthermore, a plurality of mounting grooves are evenly distributed on the outer wall of the housing, and a plurality of first magnetic members are provided, and the plurality of first magnetic members are arranged in a one-to-one correspondence in the plurality of mounting grooves;

[0012] Alternatively, a plurality of positioning protrusions are provided.

[0013] Furthermore, the shell protrudes toward a side away from the installation space to form a mounting protrusion; the mounting cavity is located in the mounting protrusion; a first slot is provided on the outer side wall of the mounting protrusion; the display screen is arranged in the first slot of the mounting protrusion; one end of the first connector is arranged in the mounting protrusion, and the other end is exposed from the mounting protrusion.

[0014] Furthermore, the shell includes a first shell and a second shell, the first shell is connected to the second shell, the first shell protrudes outward toward the side away from the installation space, and forms the installation protrusion with the second shell; the installation cavity is arranged between the first shell and the second shell; one end of the first connector can pass through and be displayed outside the second shell; the first slot is arranged on the outer wall of the first shell.

[0015] Furthermore, the second shell includes a first shell plate and a second shell plate, and the electronic ring main board includes a first end, a second end, a third end and a fourth end; the first end is arranged opposite to the second end, and the third end is arranged opposite to the fourth end; the first shell plate includes a first limiting protrusion and a second limiting protrusion, which are used to limit the first end and the second end; the second shell plate is connected to the first shell, and the first shell plate is also provided with a third limiting protrusion, and the third limiting protrusion and the second shell plate are respectively located at the third end and the fourth end of the electronic ring main board, which are used to limit the third end and the fourth end.

[0016] Furthermore, the electronic ring mainboard is further provided with a flat cable, and the first connector is connected to the electronic ring mainboard via the flat cable;

[0017] The second shell is provided with an exposure hole communicating with the installation cavity, and one end of the first connector passes through the exposure hole and is exposed outside the second shell.

[0018] Furthermore, it includes a fixed part, a rotating part, a handwheel control board, a second connector and the electronic ring, the rotating part is rotatably connected to the fixed part, the handwheel control board is connected to the fixed part, the fixed part has a second slot, the second connector is electrically connected to the handwheel control board, and is exposed on the side of the fixed part facing the rotating part through the second slot, and the rotating part can be installed in the installation space to electrically connect the first connector and the second connector.

[0019] Furthermore, the fixed portion has a second magnetic member on a side facing the rotating portion, and the outer wall of the shell is provided with a first magnetic member, and the first magnetic member can be magnetically attracted to the second magnetic member; or,

[0020] One of the outer wall of the shell and the fixing portion is provided with a positioning protrusion, and the other is elastically provided with a limiting member and has a positioning hole. The positioning protrusion can be inserted into the positioning hole, and the limiting member can limit the positioning protrusion to the positioning hole.

[0021] Furthermore, a plurality of beads are elastically provided on the outer periphery of the rotating part.

[0022] The beneficial effect of the present application is that, compared with the prior art, the electronic ring of the present invention can be connected to the control panel of the handwheel through the first connector, receive the lens parameter data of the handwheel, and display it through the display screen, thereby facilitating the user to understand the changes in the lens parameters in real time through the display screen and facilitating the adjustment of the lens parameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of a follow focus device.

[0024] Figure 2 It is a structural diagram of the handwheel.

[0025] Figure 3 This is an exploded view of the handwheel.

[0026] Figure 4 This is a schematic diagram of the structure of an electron ring.

[0027] Figure 5 This is an exploded diagram of an electron ring.

[0028] Figure 6 It is a schematic diagram of the structure of the first shell.

[0029] Figure 7 It is a schematic diagram of the structure of the second shell.

[0030] Figure 8 It is a structural diagram of the assembled state of the second shell and the electronic ring mainboard.

[0031] Figure 9 It is a structural diagram of the lens adjustment device without the electronic ring installed.

[0032] Figure 10 Schematic diagram of the structure of an electronic ring in another embodiment.

[0033] Reference numerals: 1. Follow focus device body; 2. Handwheel; 21. Fixing portion; 211. Second slot; 212. Second magnetic member; 213. Positioning hole; 214. Limiting member; 2141. First limiting member; 2142. Second limiting member; 215. Accommodating slot; 216. Spring; 22. Rotating portion; 221. Mounting position; 222. Dial; 23. Handwheel control panel; 24. Second connector; 25. Electronic ring; 250. Mounting space; 251. Housing; 2511. First housing; 2512. Second housing; 2513. First housing plate; 2514. Second housing plate. 2515. First limiting protrusion; 2516. Second limiting protrusion; 25110. Third limiting protrusion; 2517. Exposure hole; 2518. Support step; 2519. Holding step; 2510. Holding position; 252. First connector; 253. Mounting cavity; 254. First slot; 255. Electronic ring mainboard; 2551. Cable; 2552. First end; 2553. Second end; 2554. Third end; 2555. Fourth end; 256. Display screen; 257. First magnetic component; 258. Mounting slot; 259. Mounting protrusion; 26. Positioning protrusion. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] To achieve the above purpose, the technical solution of the utility model is as follows:

[0036] See also Figure 1 As shown, this embodiment provides a lens adjustment device, such as a follow focus device, comprising a follow focus device body 1 and a hand wheel 2, wherein the follow focus device body 1 is communicatively connected to the hand wheel 2. When the follow focus device assists photographic equipment in shooting, the hand wheel 2 is rotated to drive the follow focus device body 1 to control the photographic equipment's lens, thereby adjusting lens parameters, such as focus, focal length, or aperture.

[0037] See also Figure 2-3In this embodiment, the handwheel 2 includes: a fixed portion 21, a rotating portion 22, a handwheel control plate 23, a second connector 24, and an electronic ring 25. The rotating portion 22 is rotatably connected to the fixed portion 21, and the handwheel control plate 23 is connected to the fixed portion 21. The fixed portion 21 has a second slot 211. The second connector 24 is electrically connected to the handwheel control plate 23 and is exposed on the side of the fixed portion 21 facing the rotating portion 22 through the second slot 211. The electronic ring 25 has an installation space 250 and a first connector 252. The rotating portion 22 can be installed in the installation space 250 to electrically connect the first connector 252 and the second connector 24. The fixed portion 21 is installed on the follow focus device body 1. When in use, the follow focus device body 1 can be held by the user, thereby facilitating user use.

[0038] In this embodiment, the handwheel 2 serves as an installation object for mounting the electronic ring 25. The rotating portion 22 has a mounting position 221 that mates with the mounting space 250. Specifically, the mounting position 221 can generally be an annular structure, and the mounting space 250 is generally an annular structure. The electronic ring 25 is mounted on the mounting position 221 of the rotating portion 22 through the mounting space 250. In some embodiments, the mounting position 221 and the mounting space 250 can also be configured in other shapes.

[0039] Among them, the installation position 221 is a universal structure, and the existing white ring also has an installation space 250 that matches the installation position 221. In actual use, the white ring and the electronic ring 25 can be installed one by one, so as to facilitate flexible selection by the staff.

[0040] When using a white ring, the parameters need to be manually written on the white ring to identify the specific values of the current lens parameters. The white ring can facilitate users to mark according to their own shooting habits, making it easier to shoot. However, on the other hand, manual marking is relatively time-consuming and labor-intensive, and there is a certain error between the specific values of the manually marked parameters and the specific values of the camera's current parameters, which affects the camera's shooting effect.

[0041] When the electronic ring 25 is used, communication between the electronic ring 25 and the handwheel control board 23 can be achieved through the electrical connection between the first connector 252 and the second connector 24. When the rotating part 22 is rotated to adjust the parameters, the handwheel control board 23 can feed back the current lens parameter value to the electronic ring 25, so that the electronic ring 25 can automatically identify the specific value of the current lens parameter. The user can obtain the specific value of the lens parameter in real time through the electronic ring 25, thereby facilitating the user to adjust to the appropriate lens parameter.

[0042] See also Figure 3-8 In this embodiment, the electronic ring 25 includes a housing 251, an electronic ring mainboard 255, a display screen 256 and a first connector 252:

[0043] The housing 251 includes an installation space 250 for being mounted on an installation object, specifically the hand wheel 2; the housing 251 also includes an installation cavity 253 and a first slot 254, and the first slot 254 is in communication with the installation cavity 253;

[0044] The electronic ring mainboard 255 is installed in the installation cavity 253;

[0045] The display screen 256 is connected to the electronic ring mainboard 255 and is installed in the first slot 254 so that it is exposed from the housing 251, and is used to display lens parameter data;

[0046] The first connector 252 is disposed in the mounting cavity 253 and connected to the electronic ring mainboard 255 , and can be exposed from the housing 251 for electrical connection to the hand wheel 2 .

[0047] The shell 251 is mounted on the mounting position 221 of the rotating part 22 of the handwheel 2 through the mounting space 250. The electronic ring main board 255 is connected to the handwheel control board 23 for communication through the first connector 252. The current lens parameter value of the lens is received through the handwheel control board 23 and displayed on the display screen 256, thereby facilitating the marking of the lens parameters and facilitating the adjustment of the lens parameters.

[0048] Furthermore, the first connector 252 includes one of an electronic contact pin, a socket, and an interface. In this embodiment, the first connector 252 is an electronic contact pin, such as a pin, and the second connector 24 is a conductive post that matches the electronic contact pin. The electronic contact pin and the conductive post are connected by contact, which is more labor-saving and convenient to use than conventional electrical connection interfaces because it does not require plugging and unplugging.

[0049] Furthermore, a first magnetic member 257 for positioning and installing the electronic ring 25 on the handwheel 2 is provided on the outer wall of the shell 251. A plurality of groups of mounting grooves 258 are evenly distributed on the outer wall of the shell 251, and a plurality of first magnetic members 257 are provided. The plurality of groups of first magnetic members 257 are arranged one-to-one in the plurality of mounting grooves 258. The side of the fixed portion 21 facing the rotating portion 22 also has a second magnetic member 212, and the side of the shell 251 facing the fixed portion 21 has a second magnetic member 212, and the first magnetic member 257 can be magnetically attracted to the second magnetic member 212. The above structural design, when the electronic ring 25 is installed, can position the electronic ring 25 at the installation position 221 through the magnetic attraction cooperation between the first magnetic member 257 and the second magnetic member 212, while ensuring that the electronic ring 25 is quickly installed, and can also ensure the accurate position of the electronic ring 25. Specifically, multiple groups of first magnetic components 257 can be symmetrically distributed on the outer periphery of the shell 251 facing the fixed part 21 to improve the installation stability of the electronic ring 25. For example, three, four, five, etc. locations can be symmetrically arranged on the outer periphery of the shell 251 facing the fixed part 21.

[0050] For further information, please refer to Figure 9-10 In this embodiment, a positioning protrusion 26 can be provided on one of the outer wall of the housing 251 and the fixing portion 21, and a limiting member 214 can be elastically provided on the other and a positioning hole 213 can be formed. The positioning protrusion 26 can be inserted into the positioning hole 213, and the limiting member 214 can limit the positioning protrusion 26 in the positioning hole 213. In this way, the housing 251 and the hand wheel 2 are installed and positioned. Specifically, the fixing portion 21 defines a receiving groove 215, and the limiting member 214 includes a first limiting member 2141 and a second limiting member 2142. The first limiting member 2141 and the second limiting member 2142 are elastically connected within the receiving groove 215 via a spring 216. The first limiting member 2141 and the second limiting member 2142 are disposed opposite each other. When the electronic ring 25 is installed, when the positioning protrusion 26 is inserted into the positioning hole 213, the first limiting member 2141 and the second limiting member 2142 can be forced apart and then reset to limit the positioning protrusion 26. It is worth noting that the installation positions of the positioning protrusion 26 and the first limiting member 2141 can also be reversed. The limiting principle is the same as above and will not be discussed in detail here.

[0051] Furthermore, the housing 251 protrudes toward a side away from the mounting space 250 to form a mounting protrusion 259; the mounting cavity 253 is located within the mounting protrusion 259; the first slot 254 is located on the outer wall of the mounting protrusion 259; the electronic ring mainboard 255 is disposed within the mounting protrusion 259; the display screen 256 is disposed on the outer wall of the mounting protrusion 259; one end of the first connector 252 is disposed within the mounting cavity 253 of the mounting protrusion 259, with the other end exposed from the mounting protrusion 259. In this embodiment, the mounting protrusion 259 allows the display screen 256 to be protruded for display, allowing the user to hold the follow focus device body 1 with the display screen 256 facing them. The extension of the mounting protrusion 259 allows the user to conveniently view the current lens parameter values on the display screen 256.

[0052] Furthermore, a plurality of beads 222 are elastically provided on the outer periphery of the rotating portion 22 to facilitate rotation of the rotating portion 22 relative to the electronic ring 25. In this embodiment, the inner sidewall of the housing 251 has a clearance groove, which extends to the mounting protrusion 259 via an inclined surface. When the user rotates the rotating portion 22, the beads 222 gradually abut against the inclined surface and the inner side surface of the mounting protrusion 259, thereby facilitating rotation of the rotating portion 22 relative to the inner side surface of the mounting protrusion 259 of the electronic ring 25.

[0053] Furthermore, the housing 251 includes a first shell 2511 and a second shell 2512. The first shell 2511 and the second shell 2512 are connected by screws, which can be fixed with glue or configured to be detachable. The first shell 2511 protrudes outward toward the side away from the installation space 250 and combines with the second shell 2512 to form a mounting protrusion 259. The mounting cavity 253 is disposed between the first shell 2511 and the second shell 2512. One end of the first connector 252 is connected to the electronic ring mainboard 255, and the other end passes through and is displayed outside the second shell 2512. The first slot 254 is disposed on the outer wall of the first shell 2511. The above structural design makes the housing 251 a detachable structure, and the electronic ring mainboard 255 and the first connector 252 disposed in the mounting cavity 253 are easy to disassemble and assemble, facilitating replacement and maintenance.

[0054] Further, see Figure 8 The second shell 2512 includes a first shell plate 2513 and a second shell plate 2514. The electronic ring mainboard 255 includes a first end 2552, a second end 2553, a third end 2554, and a fourth end 2555 that are oppositely arranged. The first end 2552, the second end 2553, the third end 2554, and the fourth end 2555 are respectively the four ends of the electronic ring mainboard 255. The first end 2552 is opposite to the second end 2553, and the third end 2554 is opposite to the fourth end 2555. The shell plate 2513 includes a first limiting protrusion 2515 and a second limiting protrusion 2516 for limiting the first end 2552 and the second end 2553. The second shell plate 2514 is connected to the first shell plate 2513. The first shell plate 2513 is also provided with a third limiting protrusion 25110. The third limiting protrusion 25110 and the second shell plate 2514 are respectively located at the third end 2554 and the fourth end 2555 of the electronic ring mainboard 255, for limiting the third end 2554 and the fourth end 2555. Through the above-mentioned structure, the electronic ring mainboard 255 can be limited in two directions, thereby achieving the limitation of the electronic ring mainboard 255 in two mutually perpendicular directions, improving the structural stability and ensuring the normal operation of the electronic ring.

[0055] In this embodiment, the electronic ring main board 255 is a PCB circuit board.

[0056] Furthermore, a flat cable 2551 is provided on the electronic ring mainboard 255 , and the first connector 252 is connected to the electronic ring mainboard 255 via the flat cable 2551 .

[0057] Furthermore, the second shell 2512 is provided with a revealing hole 2517 communicating with the installation cavity 253 . The revealing hole 2517 is located on the first shell plate 2513 , and one end of the first connector 252 passes through the revealing hole 2517 and is exposed outside the second shell 2512 .

[0058] Furthermore, the first shell 2511 has a support step 2518, and the second shell 2512 has a holding step 2519 above the support step 2518. A holding position 2510 is formed between the support step 2518 and the holding step 2519, and the first connector 252 is held against the holding position 2510. The above structural design can ensure that the first connector 252 is held between the first shell 2511 and the second shell 2512, preventing the first connector 252 from loosening and ensuring the stability of the electrical connection between the first connector 252 and the second connector 24.

[0059] Specifically, there are two supporting steps 2518, and correspondingly, there are also two pressing steps 2519. The two pressing steps 2519 are located one-to-one directly above the two supporting steps 2518. The two ends of the first connector 252 are arranged between the supporting steps 2518 and the pressing steps 2519, which can support the first connector 252 from both ends at the same time, thereby improving the stability of the structure.

[0060] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An electronic ring, characterized in that include: The housing (251) includes an installation space (250) for being mounted on an installation object; the housing (251) also includes an installation cavity (253); An electronic ring mainboard (255) is installed in the installation cavity (253); A display screen (256), electrically connected to the electronic ring mainboard (255), mounted on the housing and capable of being exposed from the housing, for displaying lens parameter data; A first connector (252) is arranged in the installation cavity (253) and electrically connected to the electronic ring mainboard (255), and can be exposed from the housing (251) for electrically connecting to an installation object.

2. An electronic ring according to claim 1, characterized in that: The outer side wall of the housing (251) is provided with a first magnetic attraction member (257) or a positioning protrusion (26) for positioning and mounting the electronic ring on an installation object.

3. An electronic ring as claimed in claim 2, characterized in that: Multiple groups of mounting grooves (258) are evenly distributed on the outer wall of the housing (251), multiple groups of the first magnetic members (257) are provided, and the multiple groups of first magnetic members (257) are arranged in a one-to-one correspondence in the multiple groups of mounting grooves (258); or, A plurality of positioning protrusions (26) are provided.

4. An electronic ring according to any one of claims 1 to 3, characterized in that: The housing (251) protrudes toward a side away from the installation space (250) to form a mounting protrusion (259); the mounting cavity (253) is located in the mounting protrusion (259); a first slot (254) is provided on an outer side wall of the mounting protrusion (259); the display screen (256) is arranged in the first slot (254) of the mounting protrusion (259); one end of the first connector (252) is arranged in the mounting protrusion (259), and the other end is exposed from the mounting protrusion (259).

5. An electronic ring as claimed in claim 4, characterized in that: The shell includes a first shell (2511) and a second shell (2512), the first shell (2511) and the second shell (2512) are connected, the first shell (2511) protrudes outward toward the side away from the installation space, and forms the installation protrusion (259) with the second shell (2512); the installation cavity (253) is arranged between the first shell (2511) and the second shell (2512); one end of the first connector (252) can pass through and be displayed outside the second shell (2512); the first slot (254) is arranged on the outer wall of the first shell (2511).

6. An electronic ring as claimed in claim 5, characterized in that: The second shell (2512) includes a first shell plate (2513) and a second shell plate (2514); the electronic ring main board (255) includes a first end (2552), a second end (2553), a third end (2554) and a fourth end (2555); the first end (2552) and the second end (2553) are arranged opposite to each other, and the third end (2554) and the fourth end (2555) are arranged opposite to each other; the first shell plate (2513) includes a first limiting protrusion (2515) and a second limiting protrusion (2516) ), used for limiting the first end (2552) and the second end (2553); the second shell plate (2514) is connected to the first shell plate (2513), and the first shell plate (2513) is further provided with a third limiting protrusion (25110), and the third limiting protrusion (25110) and the second shell plate (2514) are respectively located at the third end (2554) and the fourth end (2555) of the electronic ring main board (255), and are used for limiting the third end (2554) and the fourth end (2555).

7. An electronic ring according to claim 6, characterized in that: The electronic ring mainboard (255) is further provided with a flat cable (2551), and the first connector (252) is connected to the electronic ring mainboard (255) via the flat cable (2551); The second shell (2512) is provided with a revealing hole (2517) communicating with the installation cavity (253), and one end of the first connector (252) passes through the revealing hole (2517) and is exposed outside the second shell (2512).

8. A lens adjustment device, characterized in that: The electronic ring comprises a fixed portion (21), a rotating portion (22), a handwheel control board (23), a second connector (24) and the electronic ring according to any one of claims 1 to 7, wherein the rotating portion (22) is rotatably connected to the fixed portion (21), the handwheel control board (23) is connected to the fixed portion (21), the fixed portion (21) has a second slot (211), the second connector (24) is electrically connected to the handwheel control board (23), and is exposed on a side of the fixed portion (21) facing the rotating portion (22) through the second slot (211), and the rotating portion (22) can be installed in the installation space (250) so that the first connector (252) and the second connector (24) are electrically connected.

9. The lens adjustment device according to claim 8, characterized in that: The fixed portion (21) further has a second magnetic member (212) on a side facing the rotating portion (22), and the outer wall of the housing (251) is provided with a first magnetic member (257), and the first magnetic member (257) can be magnetically attracted to the second magnetic member (212); or, One of the outer wall of the housing (251) and the fixing portion (21) is provided with a positioning protrusion (26), and the other is elastically provided with a limiting member (214) and is provided with a positioning hole (213). The positioning protrusion (26) can be inserted into the positioning hole (213), and the limiting member (214) can limit the positioning protrusion (26) to the positioning hole (213).

10. The lens adjustment device according to claim 8, characterized in that: The outer periphery of the rotating portion (22) is elastically provided with a plurality of shifting beads (222).

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