WO2024120155A1

WO2024120155A1 - Light adjusting apparatus

Info

Publication number: WO2024120155A1
Application number: PCT/CN2023/132316
Authority: WO
Inventors: 周阳; 晏科满
Original assignee: 深圳市乐其网络科技有限公司
Priority date: 2022-12-07
Filing date: 2023-11-17
Publication date: 2024-06-13
Also published as: CN219085253U

Abstract

A light adjusting apparatus. The light adjusting apparatus comprises a lens (100) and a lens barrel (200); the lens (100) is sleeved with the lens barrel (200), and the lens barrel (200) can slide in a first direction relative to the lens (100); one of the lens barrel (200) and the lens (100) is rotatably provided with a rotating assembly, the rotating assembly comprises a rotating member (310), the rotating member (310) can rotate in the first direction, and the other of the lens barrel (200) and the lens (100) is provided with a fitting structure corresponding to the rotating member (310); one of the rotating member (310) and the fitting structure is provided with an internal thread, the other is provided with an external thread, and the internal thread and the external thread extend in the first direction, so that the lens barrel (200) or the lens (100) that is provided with the fitting structure can slide in the first direction along with the rotation of the rotating member (310), and thus the lens barrel (200) can linearly and reciprocatingly move in the first direction relative to the lens (100). Relative translation between the lens barrel (200) and the lens (100) is smooth and not prone to jamming; additionally, a threaded fit mode prevents movement from being too fast, ensures the operation reliability, and improves the working reliability of the light adjusting apparatus.

Description

Lighting adjustment device

Technical Field

The present invention relates to the technical field of auxiliary photography, and in particular to a lighting adjustment device.

Background technique

In order to have a better shooting experience, photography auxiliary equipment is usually used, such as a light adjustment device, which can adjust the focus to help users get clear photos. However, due to unreasonable structural design, the existing light adjustment device is prone to structural jamming during focusing, and has low working reliability.

Summary of the invention

The main purpose of the present invention is to provide a light adjustment device, which aims to enable the light adjustment device to focus easily and smoothly, avoid structural jamming during focusing, and ensure the reliability of the light adjustment device.

To achieve the above object, the lighting adjustment device proposed in the present invention comprises:

A lens and a lens barrel, wherein the lens is used to mount a lens, the lens barrel is mounted on the lens, and the lens barrel can slide relative to the lens along a first direction;

One of the lens barrel and the lens is rotatably installed with a rotating assembly, and the rotating assembly includes a rotating member, which can rotate around the first direction, and the other is provided with a matching structure corresponding to the rotating member, and one of the rotating member and the matching structure is provided with an internal thread, and the other is provided with an external thread, and the internal thread and the external thread extend along the first direction, and the internal thread and the external thread are threadedly matched, so that the lens barrel or the lens provided with the matching structure can slide along the first direction as the rotating member rotates, so that the lens barrel can make a linear reciprocating motion relative to the lens along the first direction.

Optionally, the rotating member comprises a rotating part and a gear part connected to each other, and one end of the rotating part away from the gear part is threadedly engaged with the matching structure;

The lens barrel or lens has a mounting cavity, which is communicated with the outside. The rotating assembly further comprises a gear assembly, which is mounted in the mounting cavity and can rotate in the mounting cavity. The gear assembly meshes with the gear portion.

Optionally, the gear assembly includes a driving gear and a transmission gear, the transmission gear is arranged between the driving gear and the gear portion of the rotating member, and the transmission gear includes a first gear and a second gear connected to each other, the first gear is meshed with the driving gear, and the second gear is meshed with the gear portion of the rotating member.

Optionally, the driving gear rotates around a second direction, and the second direction is set at an angle with the first direction; the driving gear and the first gear are configured as helical gears, so that the second gear rotates around the first direction under the rotation of the driving gear.

Optionally, the light adjustment device also includes a mounting member, which is installed in the mounting cavity, and the mounting member has a first mounting groove, a second mounting groove and a third mounting groove, the second mounting groove is connected to the first mounting groove and the third mounting groove respectively, the driving gear is installed in the first mounting groove, the transmission gear is installed in the second mounting groove, and the rotating member is installed in the third mounting groove.

Optionally, one of the groove wall of the first installation groove and the driving gear is provided with a first limiting column, and the other is provided with a first limiting hole, and the first limiting column is rotatably inserted into the first limiting hole; and/or,

One of the groove wall of the second installation groove and the transmission gear is provided with a second limiting column, and the other is provided with a second limiting hole, and the second limiting column is rotatably inserted into the second limiting hole; and/or,

One of the groove wall of the third installation groove and the rotating member is provided with a third limiting column, and the other is provided with a third limiting hole, and the third limiting column is rotatably inserted in the third limiting hole.

Optionally, the rotating assembly further includes a knob, the knob at least partially protruding from the surface of the lens barrel, and the knob is connected to the driving gear so that the driving gear rotates following the rotation of the knob.

Optionally, the rotating assembly further comprises a torsion rod, the torsion rod comprises a rotating section and a hand-pushing section, the rotating section and the hand-pushing section are arranged at an angle, one end of the rotating section away from the hand-pushing section is rotatably connected to the eccentric part of the knob, and the torsion rod has a storage state and a use state;

When the torsion rod is in the stored state, the rotating section as a whole is close to or abuts against the top surface of the knob, and the hand-pushing section is located on the peripheral side of the knob and close to or abuts against the side surface of the knob;

When the torsion rod is in use, the torsion rod flips over so that the hand-pushing section is away from the knob.

Optionally, one of the lens barrel and the lens is provided with a limiting groove, and the other is provided with a limiting rib, the limiting rib and the limiting groove extend along the first direction, and the limiting groove is adapted to be plugged into the limiting rib.

Optionally, the outer wall of the rotating member is provided with the external thread, the matching structure includes a movable hole, and the hole wall of the movable hole is provided with the internal thread.

The technical solution of the present invention uses a threaded matching method to make the lens barrel or lens with a matching structure move along a first direction when the rotating member rotates, so that the lens barrel moves relative to the lens along the first direction. In this way, the direction of relative movement of the lens barrel and the lens can be controlled by controlling the rotation direction of the rotating member, so that the lens barrel can perform linear reciprocating motion relative to the lens along the first direction to achieve focusing. Since the lens barrel and the lens perform relative translational motion, the operation is smooth and not easy to get stuck, and the threaded matching method avoids the lens barrel and the lens from moving too fast relative to each other, thereby ensuring the reliability of operation and improving the reliability of the light adjustment device.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

FIG1 is a schematic structural diagram of a light adjustment device according to the present invention;

FIG2 is a schematic cross-sectional view of the light adjustment device of the present invention;

FIG3 is a partial enlarged view of point A in FIG2;

FIG4 is a schematic diagram of an exploded structure of a part of the structure of the light adjustment device of the present invention;

FIG5 is a schematic diagram of an exploded structure of another part of the light adjustment device of the present invention;

FIG6 is a schematic structural diagram of a rotating assembly of a light adjustment device according to the present invention;

FIG. 7 is a schematic structural diagram of the torsion rod of the light adjustment device of the present invention in a use state.

Description of Figure Numbers:

The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

Detailed ways

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

In addition, the descriptions of "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "and/or" in the full text includes three solutions. Taking A and/or B as an example, it includes technical solution A, technical solution B, and technical solutions that satisfy both A and B. In addition, each implementation The technical solutions between the examples can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in the field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

The specific structure of the light adjustment device will be mainly described below.

1 to 7 , in an embodiment of the present invention, the light adjustment device comprises a lens 100 and a lens barrel 200, wherein the lens 100 is used to mount a lens 110, the lens barrel 200 is sleeved with the lens 100, and the lens barrel 200 can slide relative to the lens 100 along a first direction; one of the lens barrel 200 and the lens 100 is rotatably mounted with a rotating assembly, the rotating assembly comprising a rotating member 310, the rotating member 310 can rotate around the first direction, and the other is provided with a matching structure corresponding to the rotating member 310, one of the rotating member 310 and the matching structure is provided with an internal thread (not shown in the figure), and the other is provided with an external thread (not shown in the figure), the internal thread and the external thread extend along the first direction, and the internal thread and the external thread are threadedly matched, so that the lens barrel 200 or the lens 100 provided with the matching structure can slide along the first direction as the rotating member 310 rotates, thereby making the lens barrel 200 perform linear reciprocating motion relative to the lens 100 along the first direction.

In this embodiment, the first direction can be understood as the length direction of the lens barrel 200, for example, it can be the axial direction of the lens barrel 200. The internal thread and the external thread extend along the first direction, which means that the extension trend of the internal thread and the external thread is the first direction, so that when the rotating member 310 rotates, the matching structure moves relative to the rotating member 310 along the first direction, so that the lens barrel 200 moves relative to the lens 100 along the first direction.

The technical solution of the present invention uses a threaded mating method to make the lens barrel 200 or the lens 100 provided with a mating structure move along the first direction when the rotating member 310 rotates, so that the lens barrel 200 moves relative to the lens 100 along the first direction. In this way, the direction of relative movement of the lens barrel 200 and the lens 100 can be controlled by controlling the rotation direction of the rotating member 310, so that the lens barrel 200 can perform a linear reciprocating motion relative to the lens 100 along the first direction to achieve focusing. Since the lens barrel 200 and the lens 100 perform a relative translational motion, the operation is smooth and not easy to get stuck, and the threaded mating method prevents the lens barrel 200 and the lens 100 from moving too fast relative to each other, thereby ensuring the reliability of the operation and improving the reliability of the light adjustment device.

There are many forms of matching structures. In some embodiments, the outer wall of the rotating member 310 is provided with the external thread, and the matching structure includes a movable hole 120, and the hole wall of the movable hole 120 is provided with the internal thread. In other embodiments, the rotating member 310 may also be provided with a movable hole, and the hole wall of the movable hole may be provided with the internal thread. The inner thread is provided, the matching structure includes a matching column, and the outer wall of the matching column is provided with an outer thread. The matching structure can also be in other forms, which are not listed here one by one.

In some embodiments, the rotating member 310 includes a rotating portion 311 and a gear portion 312 connected to each other, and one end of the rotating portion 311 away from the gear portion 312 is threadedly matched with the matching structure; the lens barrel 200 or the lens 100 has a mounting cavity 220, and the mounting cavity 220 is connected to the outside, and the rotating assembly also includes a gear assembly, which is installed in the mounting cavity 220 and can rotate in the mounting cavity 220, and the gear assembly is meshed with the gear portion 312. In this embodiment, the rotating member 310 can be rotated by rotating the gear assembly, and the reliability of the light adjustment device is improved because the gear transmission method has high reliability in transmitting motion.

Further, the gear assembly includes a driving gear 320 and a transmission gear 330, wherein the transmission gear 330 is arranged between the driving gear 320 and the gear portion 312 of the rotating member 310, and the transmission gear 330 includes a first gear 331 and a second gear 332 connected to each other, wherein the first gear 331 is meshed with the driving gear 320, and the second gear 332 is meshed with the gear portion 312 of the rotating member 310. The actual gear assembly is composed of a plurality of gears, which is conducive to improving the focusing accuracy. Among them, the number of teeth of the first gear 331 can be the same as or different from the number of teeth of the second gear 332. In actual application, the driving gear 320 rotates around the second direction, and the second direction is set at an angle with the first direction; the driving gear 320 and the first gear 331 are set as helical gears, so that the second gear 332 rotates around the first direction under the rotation of the driving gear 320. In this way, the direction of movement is changed flexibly and cleverly, which facilitates the reasonable arrangement of the installation position of the rotating assembly according to actual needs. Taking the first direction as the axial direction of the lens barrel 200 as an example, the rotating member 310 can be installed inside the lens barrel 200 and extend along the axial direction of the lens barrel 200, and the driving gear 320 can be installed on the peripheral wall of the lens barrel 200 to avoid the end wall of the lens barrel 200 and facilitate the user to rotate the driving gear 320.

In some embodiments, the light adjustment device further includes a mounting member 400, the mounting member 400 is mounted in the mounting cavity 220, the mounting member 400 has a first mounting groove 410, a second mounting groove 420 and a third mounting groove 430, the second mounting groove 420 is respectively connected with the first mounting groove 410 and the third mounting groove 430, the driving gear 320 is mounted in the first mounting groove 410, the transmission gear 330 is mounted in the second mounting groove 420, and the rotating member 310 is mounted in the third mounting groove 430. The gear is mounted in the mounting groove, which can limit the gear to a certain extent, avoid abnormal situations such as deflection of the gear during rotation, ensure stable and reliable operation of the gear, and thus improve the reliability of the light adjustment device.

Further, one of the groove wall of the first installation groove 410 and the driving gear 320 is provided with a first limiting column 411, and the other is provided with a first limiting hole, and the first limiting column 411 is rotatably inserted in the first limiting hole; and/or, one of the groove wall of the second installation groove 420 and the transmission gear 330 is provided with a second limiting column 421, and the other is provided with a second limiting hole, and the second limiting column 421 is rotatably inserted in the second limiting hole; and/or, one of the groove wall of the third installation groove 430 and the rotating member 310 is provided with a third limiting column 313, and the other is provided with a third limiting hole, and the third limiting column 313 is rotatably inserted in the third limiting hole. Such a configuration further prevents the gear from deflecting, and further improves the reliability of the light adjustment device.

It should be noted that in order to prevent the gear from deflecting and facilitate the installation of the gear, the mounting member 400 can be designed in a split manner. For example, the mounting member 400 is composed of a mounting body 401, a first cover body 402 and a second cover body 403. The mounting body 401 is provided with the first mounting groove 410, the second mounting groove 420 and the third mounting groove 430. The first cover body 402 covers the opening of the first mounting groove 410. The first cover body 402 can be provided with a through hole to expose the rotating part of the driving gear 320; the second cover body 403 covers the second mounting groove 420 and the third mounting groove 430.

In some embodiments, the rotating assembly further includes a knob 500, the knob 500 at least partially protrudes from the surface of the lens barrel 200, and the knob 500 is connected to the driving gear 320 so that the driving gear 320 rotates following the rotation of the knob 500. In this embodiment, the driving gear 320 can be rotated by rotating the knob 500, thereby ultimately achieving focusing. The knob 500 at least partially protrudes from the surface of the lens barrel 200, which is convenient for the user to rotate the knob 500, thereby improving the convenience of focusing operation.

Furthermore, the rotating assembly also includes a torsion rod 600, which includes a rotating section 610 and a hand-push section 620, the rotating section 610 and the hand-push section 620 are arranged at an angle, and the end of the rotating section 610 away from the hand-push section 620 is rotatably connected to the eccentric part of the knob 500, and the torsion rod 600 has a storage state and a use state; when the torsion rod 600 is in the storage state, the rotating section 610 as a whole is close to or abuts against the top surface of the knob 500, and the hand-push section 620 is located on the peripheral side of the knob 500, and is close to or abuts against the side of the knob 500; when the torsion rod 600 is in the use state, the torsion rod 600 is flipped so that the hand-push section 620 is away from the knob 500. In this embodiment, the rotating section 610 is rotatably connected to the knob 500, so that the angle between the rotating section 610 and the knob 500 can be adjusted, so that the torsion bar 600 has a storage state and a use state. Referring to FIG. 4, the torsion bar 600 shown in FIG. 4 is in the storage state, and referring to FIG. 7, the torsion bar 600 shown in FIG. 7 is in the use state. In the storage state, the angle between the rotating section 610 and the knob 500 can be adjusted. The angle between the rotating section 610 and the knob 500 can be 0-15 degrees, such as 0 degrees; in the use state, the angle between the rotating section 610 and the knob 500 can be 165-180 degrees, such as 180 degrees. The user can choose to directly rotate the knob 500 to rotate the active gear 320, or the user can rotate the rotating section 610 to make the torsion bar 600 in the use state, and then push the hand-pushing section 620 so that the hand-pushing section 620 drives the knob 500 to rotate to realize the rotation of the active gear 320, so as to save torque and easily rotate the knob 500. When the torsion bar 600 is not in use, the torsion bar 600 can be placed in the storage state to reduce the extra space occupied by the torsion bar 600.

In some embodiments, one of the lens barrel 200 and the lens 100 is provided with a limiting groove 210, and the other is provided with a limiting rib 130, the limiting rib 130 and the limiting groove 210 extend along the first direction, and the limiting groove 210 is adapted to be inserted into the limiting rib 130. In this way, the rotation and displacement of the lens barrel 200 relative to the lens 100 are restricted, so that the lens barrel 200 can only perform linear reciprocating motion relative to the lens 100 in the first direction, thereby improving the focusing accuracy.

The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly/indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

A light adjustment device, characterized in that the light adjustment device comprises:

A lens and a lens barrel, wherein the lens is used to mount a lens, the lens barrel is mounted on the lens, and the lens barrel can slide relative to the lens along a first direction;

One of the lens barrel and the lens is rotatably installed with a rotating assembly, and the rotating assembly includes a rotating member, which can rotate around the first direction, and the other is provided with a matching structure corresponding to the rotating member, and one of the rotating member and the matching structure is provided with an internal thread, and the other is provided with an external thread, and the internal thread and the external thread extend along the first direction, and the internal thread and the external thread are threadedly matched, so that the lens barrel or the lens provided with the matching structure can slide along the first direction as the rotating member rotates, so that the lens barrel can make a linear reciprocating motion relative to the lens along the first direction.
The light adjustment device according to claim 1, characterized in that the rotating member comprises a rotating portion and a gear portion connected to each other, and an end of the rotating portion away from the gear portion is threadedly engaged with the mating structure;

The lens barrel or the lens has a mounting cavity, which is communicated with the outside. The rotating assembly also includes a gear assembly, which is mounted in the mounting cavity and can rotate in the mounting cavity. The gear assembly is meshed with the gear part.
The light adjustment device as described in claim 2 is characterized in that the gear assembly includes a driving gear and a transmission gear, the transmission gear is arranged between the driving gear and the gear portion of the rotating member, and the transmission gear includes a first gear and a second gear connected to each other, the first gear is meshed with the driving gear, and the second gear is meshed with the gear portion of the rotating member.
The light adjustment device as described in claim 3 is characterized in that the driving gear rotates around a second direction, and the second direction is set at an angle with the first direction; the driving gear and the first gear are configured as helical gears, so that the second gear rotates around the first direction under the rotation of the driving gear.
The light adjustment device according to claim 3, characterized in that the light adjustment device It also includes a mounting member, which is installed in the mounting cavity. The mounting member has a first mounting groove, a second mounting groove and a third mounting groove. The second mounting groove is connected to the first mounting groove and the third mounting groove respectively. The driving gear is installed in the first mounting groove, the transmission gear is installed in the second mounting groove, and the rotating member is installed in the third mounting groove.
The light adjustment device according to claim 5, characterized in that one of the groove wall of the first installation groove and the driving gear is provided with a first limiting column, and the other is provided with a first limiting hole, and the first limiting column is rotatably inserted into the first limiting hole; and/or,

One of the groove wall of the second installation groove and the transmission gear is provided with a second limiting column, and the other is provided with a second limiting hole, and the second limiting column is rotatably inserted into the second limiting hole; and/or,

One of the groove wall of the third installation groove and the rotating member is provided with a third limiting column, and the other is provided with a third limiting hole, and the third limiting column is rotatably inserted in the third limiting hole.
The light adjustment device according to any one of claims 3 to 6, characterized in that the rotating assembly further comprises a knob, the knob at least partially protruding from the surface of the lens barrel, and the knob is connected to the driving gear so that the driving gear rotates following the rotation of the knob.
The light adjustment device according to claim 7, characterized in that the rotating assembly further comprises a torsion rod, the torsion rod comprises a rotating section and a hand-pushing section, the rotating section and the hand-pushing section are arranged at an angle, one end of the rotating section away from the hand-pushing section is rotatably connected to the eccentric part of the knob, and the torsion rod has a storage state and a use state;

When the torsion rod is in the stored state, the rotating section as a whole is close to or abuts against the top surface of the knob, and the hand-pushing section is located on the peripheral side of the knob and close to or abuts against the side surface of the knob;

When the torsion rod is in use, the torsion rod flips over so that the hand-pushing section is away from the knob.
The light adjustment device according to any one of claims 1 to 6 is characterized in that one of the lens barrel and the lens is provided with a limiting groove, and the other is provided with a limiting rib, the limiting rib and the limiting groove extend along the first direction, and the limiting groove is adapted to be plugged into the limiting rib.
The light adjustment device according to any one of claims 1 to 6 is characterized in that the outer wall of the rotating member is provided with the external thread, the matching structure includes a movable hole, and the hole wall of the movable hole is provided with the internal thread.