CN114942557A - Diaphragm adjusting device and lens with same - Google Patents
Diaphragm adjusting device and lens with same Download PDFInfo
- Publication number
- CN114942557A CN114942557A CN202210519787.7A CN202210519787A CN114942557A CN 114942557 A CN114942557 A CN 114942557A CN 202210519787 A CN202210519787 A CN 202210519787A CN 114942557 A CN114942557 A CN 114942557A
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- lens
- adjusting
- cam plate
- diaphragm
- lens barrel
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- 230000003287 optical effect Effects 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 6
- 235000017491 Bambusa tulda Nutrition 0.000 claims 6
- 241001330002 Bambuseae Species 0.000 claims 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 6
- 239000011425 bamboo Substances 0.000 claims 6
- 230000001105 regulatory effect Effects 0.000 claims 2
- 230000001276 controlling effect Effects 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/02—Diaphragms
- G03B9/06—Two or more co-operating pivoted blades, e.g. iris type
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lens Barrels (AREA)
- Diaphragms For Cameras (AREA)
Abstract
The invention discloses a diaphragm adjusting device and a lens with the same, comprising: the adjusting part drives the cam plate to rotate along the section of the lens barrel through the first limiting groove, the adjusting part is located in the adjusting ring, and the adjusting ring is fixedly connected with the adjusting part. When the lens is focused, the cam plate moves along the first limit groove on the adjusting piece along the lens barrel, the length of the first limit groove is larger than the movement amount of the lens, so that the movement of the cam plate is not limited, and the cam plate cannot be deformed and damaged.
Description
Technical Field
The invention relates to the field of optical lenses, in particular to a diaphragm adjusting device and a lens with the diaphragm adjusting device.
Background
The existing diaphragm blades and cam plates are arranged on a lens barrel in a lens and move up and down along with the lens barrel, the cam plate is controlled to rotate through an adjusting ring on the lens, a deflector rod groove is generally formed in the cam plate in a connection mode of the cam plate and the adjusting ring, a deflector rod screw is arranged on the adjusting ring and movably connected with the deflector rod groove, the cam plate can move up and down relative to the deflector rod screw through the deflector rod groove, the adjusting ring is rotated left and right to drive the cam plate to rotate left and right, and the cam plate controls the diaphragm blades to open and close.
Due to the structure of the lens, the length of a deflector rod groove on the cam plate is limited, so that the moving distance of the cam plate is limited, and when the lens barrel is moved by focusing to an overlarge extent, the cam plate is easy to deform and damage.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a diaphragm adjusting device and a lens with the diaphragm adjusting device, which can solve the problem that a cam plate is easy to deform and damage.
A diaphragm adjusting apparatus according to an embodiment of a first aspect of the present invention, which is mounted on a barrel in a lens and movably connected to diaphragm blades on the barrel, includes: the cam plate is used for controlling the diaphragm blades to open and close, and the periphery of the cam plate is fixedly connected with a first connecting part; the adjusting part is provided with a first limiting groove along the axial direction of the lens, the length of the first limiting groove is larger than the maximum moving amount of the lens barrel, the first connecting part is movably connected with the first limiting groove to enable the cam plate to move along the axial direction of the lens, and the adjusting part drives the cam plate to rotate along the section of the lens barrel through the first limiting groove; the adjusting ring is located in the adjusting ring and fixedly connected with the adjusting piece so as to drive the adjusting piece to rotate along the section of the lens cone.
According to the diaphragm adjusting device of the embodiment of the first aspect of the invention, at least the following technical effects are achieved: according to the embodiment of the invention, the adjusting ring is rotated to drive the adjusting piece to rotate, the adjusting piece drives the cam plate to rotate to control the opening and closing of the diaphragm blade, when the lens is focused, the cam plate moves along the first limiting groove on the adjusting piece along the lens barrel, the length of the first limiting groove is greater than the moving amount of the lens, so that the moving distance of the cam plate is not limited, and the cam plate cannot deform.
According to some embodiments of the invention, the first connection portion comprises an intermediate connection plate and a sleeve, the intermediate connection plate being arranged at an edge of the cam plate, the cam plate being located within the sleeve, the cam plate being connected to an inner wall of the sleeve by the intermediate connection plate.
According to some embodiments of the invention, the inner wall of the sleeve is provided with a first mounting groove, and the intermediate connecting plate is clamped in the first mounting groove to drive the cam plate to rotate along the section of the lens barrel.
According to some embodiments of the invention, the outer wall of the sleeve is provided with a second connecting part, and the second connecting part is movably connected with the first limiting groove so as to enable the sleeve to move along the axial direction of the first limiting groove lens.
According to some embodiments of the invention, the adjusting device further comprises a main cylinder, the main cylinder is located between the sleeve and the adjusting ring, the adjusting piece is located between the sleeve and the main cylinder, the main cylinder is provided with a limiting through hole, the adjusting piece is provided with a third connecting portion facing the main cylinder, and the third connecting portion penetrates through the limiting through hole and is fixedly connected with the adjusting ring.
According to some embodiments of the invention, the device further comprises an adjusting handle, wherein the adjusting handle is provided with a thread, the adjusting ring is provided with a threaded hole, and the adjusting handle abuts against the main cylinder through the threaded hole.
According to some embodiments of the invention, the adjusting ring is provided with a second mounting groove, and the third connecting part is fixedly connected with the second mounting groove.
A lens barrel according to an embodiment of a second aspect of the present invention includes the above-described diaphragm adjusting apparatus.
According to the lens barrel of the embodiment of the second aspect of the invention, at least the following technical effects are achieved: according to the embodiment of the invention, the adjusting ring is rotated to drive the adjusting piece to rotate, the adjusting piece drives the cam plate to rotate to control the opening and closing of the diaphragm blade, when the lens is focused, the cam plate moves along the first limiting groove on the adjusting piece along the lens barrel, the length of the first limiting groove is greater than the moving amount of the lens, the moving distance of the cam plate is not limited, and the cam plate cannot be deformed and damaged.
According to some embodiments of the invention, the optical lens comprises a lens barrel, the diaphragm blade is mounted on the lens barrel, the cam plate is clamped with the lens barrel through a spring plate, and the cam plate is movably connected with the diaphragm blade.
According to some embodiments of the invention, the extended end of the lens barrel is mounted with a filter interface.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of a lens structure according to the present invention;
FIG. 2 is a schematic view of the connection of the cam plate, sleeve and adjustment member of the present invention;
FIG. 3 is a schematic view of the connection of the adjustment member and adjustment ring of the present invention;
FIG. 4 is an exploded view of the lens of the present invention;
FIG. 5 is a schematic view of the connection of the cam plate and the diaphragm blades of the present invention;
FIG. 6 is a schematic view of the connection of the sleeve and the barrel of the present invention;
fig. 7 is an exploded view of the filter interface and lens barrel of the present invention.
Reference numerals:
a cam plate 100, a first connecting part 110, a second limit groove 120, an intermediate connecting plate 130, an adjusting piece 200, a first limit groove 210, a third connecting part 220,
An adjusting ring 300, a second mounting groove 310,
A sleeve 400, a second connection part 410, a first installation groove 420,
A main cylinder 500, a limit through hole 510, a third limit groove 520,
An adjusting handle 600,
A lens barrel 700, a through groove 710, a filter interface 720,
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the present number, and larger, smaller, inner, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
A diaphragm adjustment device according to an embodiment of the first aspect of the present invention is described below with reference to fig. 1 to 7.
As shown in fig. 2 to 3, a diaphragm adjusting apparatus, which is mounted on a barrel 700 in a lens and movably connected to a diaphragm blade 810 on the barrel 700, includes: the adjusting device comprises a cam plate 100, an adjusting piece 200 and an adjusting ring 300, wherein a first connecting part 110 is fixedly connected to the periphery of the cam plate 100, a first limiting groove 210 is formed in the adjusting piece 200 along the axial direction of a lens, the length of the first limiting groove 210 is larger than the maximum moving amount of a lens barrel 700, the first connecting part 110 is movably connected with the first limiting groove 210 and can enable the cam plate 100 to move along the axial direction of the lens, the adjusting piece 200 drives the cam plate 100 to rotate along the section of the lens barrel 700 through the first limiting groove 210, the adjusting piece 200 is located in the adjusting ring 300, the adjusting ring 300 is fixedly connected with the adjusting piece 200, and the adjusting ring 300 can drive the adjusting piece 200 to rotate along the section of the lens barrel 700.
When the diaphragm blade 810 is adjusted, the adjusting ring 300 is rotated, the adjusting ring 300 drives the adjusting piece 200 to rotate along the section of the lens barrel 700, the adjusting piece 200 drives the cam plate 100 to rotate along the section of the lens barrel 700, the cam plate 100 controls the diaphragm blade 810 to open and close, when the lens is focused, the cam plate 100 moves along the first limiting groove 210 on the adjusting piece 200 along the lens barrel 700, the length of the first limiting groove 210 is greater than the moving amount of the lens, the movement of the cam plate 100 is not limited, and the cam plate 100 cannot be deformed and damaged.
As shown in fig. 2, the first connection portion 110 includes an intermediate connection plate 130 and a sleeve 400, the intermediate connection plate 130 is disposed at an edge of the cam plate 100, the cam plate 100 is located in the sleeve 400, and the cam plate 100 is connected to an inner wall of the sleeve 400 through the intermediate connection plate 130. The inner wall of the sleeve 400 is provided with a first mounting groove 420, the intermediate connecting plate 130 is clamped with the first mounting groove 420, so that the sleeve 400 can drive the cam plate 100 to rotate along the section of the lens barrel 700, and the first mounting groove 420 is a through groove 710, which is convenient for assembly.
The outer wall of the sleeve 400 is provided with a second connecting portion 410, the second connecting portion 410 is a rivet, the second connecting portion 410 is movably connected with the first limiting groove 210, the sleeve 400 can move axially along the lens, the adjusting piece 200 drives the cam plate 100 to rotate along the section of the lens barrel 700 through the sleeve 400, when the lens is focused and extended, the sleeve 400 blocks the lens barrel 700, the lens barrel 700 is protected, dust is prevented from entering the lens barrel 700, and the good appearance of the lens when the lens is extended is ensured.
As shown in fig. 4, the adjusting device further comprises a main cylinder 500, the main cylinder 500 is located between the sleeve 400 and the adjusting ring 300, the adjusting element 200 is located between the sleeve 400 and the main cylinder 500, a limiting through hole 510 is provided on the main cylinder 500, as shown in fig. 3, the adjusting element 200 is provided with a third connecting portion 220 facing the main cylinder 500, a second mounting groove 310 is provided on the adjusting ring 300, and the third connecting portion 220 passes through the limiting through hole 510 and is fixedly connected to the second mounting groove 310 by screws. The adjusting ring 300 drives the adjusting member 200 to rotate along the section of the lens barrel 700 in the limiting through hole 510, and the limiting through hole 510 limits the rotation angle of the adjusting member 200 according to the diaphragm adjustment value of the lens.
As shown in fig. 3, the adjustable diaphragm further comprises an adjusting handle 600, a thread is arranged on the adjusting handle 600, a threaded hole is arranged on the adjusting ring 300, the adjusting handle 600 abuts against the main cylinder 500 through the threaded hole, when the diaphragm is adjusted, the adjusting handle 600 is screwed, one end of the adjusting handle 600 abuts against the main cylinder 500, and the adjusting ring 300 is fixed.
A lens barrel according to an embodiment of a second aspect of the present invention is described below with reference to fig. 1 to 7.
As shown in fig. 1, a lens barrel includes the above-mentioned diaphragm adjusting device, the adjusting ring 300 is rotated, the adjusting ring 300 drives the adjusting member 200 to rotate, the adjusting member 200 drives the cam plate 100 to rotate to open and close the diaphragm blades 810, when the lens barrel focuses, the cam plate 100 moves along the axial direction of the lens barrel 700 along with the lens barrel, the length of the first limiting groove 210 is greater than the moving amount of the lens barrel, so that the movement of the cam plate 100 is not limited, and the cam plate 100 is not deformed and damaged.
The plurality of diaphragm blades 810 are mounted on the lens barrel 700 of the lens, a fourth connecting portion 820 is mounted on the upper surface of one end of each diaphragm blade 810 and the lower surface of the other end of each diaphragm blade 810 respectively, a mounting hole corresponding to the size of the fourth connecting portion 820 is formed in the lens barrel 700, as shown in fig. 5, the cam plate 100 is provided with second limiting grooves 120 corresponding to the diaphragm blades 810 one by one, the two fourth connecting portions 820 are mounted in the mounting hole and the second limiting grooves 120 respectively, the diaphragm blades 810 can be controlled to open and close by rotating the cam plate 100, and the cam plate 100 is connected with the lens barrel 700 in a clamping manner through an elastic sheet. The fourth connection part 820 is a rivet.
As shown in fig. 6, the lens barrel further includes an aperture press ring 800, and the sleeve 400 is sleeved on the lens barrel 700 through the aperture press ring 800, so that the sleeve 400 can move along the axial direction of the lens along with the lens barrel 700 and can rotate along the section of the lens barrel 700.
As shown in fig. 6, a through groove 710 is formed on a side surface of the lens barrel 700, a width of the through groove 710 corresponds to a width of the limiting through hole 510, and when the lens barrel 700 moves along an axial direction of the lens, the through groove 710 can accommodate the adjusting member 200, so that the adjusting member 200 does not block the movement of the lens barrel 700.
As shown in fig. 7, the filter interface 720 is installed at the extending end of the lens barrel 700, the filter interface 720 is connected to the extending end of the lens barrel 700 through a thread, when the lens barrel 700 extends, the filter interface 720 can block the lens barrel 700 and the diaphragm pressing ring 800 to play a role in protection, and the appearance of the extended lens is also ensured, compared with the conventional scheme of installing the filter interface 720 on the main barrel 500, the filter interface 720 is installed on the lens barrel 700 to reduce the unnecessary length of the lens.
As shown in fig. 4, the CAM cylinder 920, the focusing ring 910 and the lettering cylinder 900 are further included, the CAM cylinder 920 is sleeved outside the main cylinder 500, the lettering cylinder 900 is sleeved at one end outside the CAM cylinder 920, the focusing ring 910 is sleeved at the other end outside the CAM cylinder 920 and fixedly connected with the CAM cylinder 920, a CAM curved groove 930 is formed in the CAM cylinder 920, a copper column is mounted on the lens barrel 700, a third limiting groove 520 is axially formed in the main cylinder 500, the copper column passes through the third limiting groove 520 and is clamped in the CAM curved groove 930, the focusing ring 910 is rotated, and the copper column moves in the CAM curved groove 930 and the third limiting groove 520, so that the lens barrel 700 moves in the axial direction of the lens, and focusing can be accurately achieved.
In summary, the diaphragm adjusting apparatus and the lens having the diaphragm adjusting apparatus provided by the present invention include: the adjusting device comprises a cam plate 100, an adjusting piece 200 and an adjusting ring 300, wherein a first connecting part 110 is fixedly connected to the periphery of the cam plate 100, a first limiting groove 210 is formed in the adjusting piece 200 along the axial direction of a lens, the length of the first limiting groove 210 is larger than the maximum moving amount of a lens barrel 700, the first connecting part 110 is movably connected with the first limiting groove 210 and can enable the cam plate 100 to move along the axial direction of the lens, the adjusting piece 200 drives the cam plate 100 to rotate along the section of the lens barrel 700 through the first limiting groove 210, the adjusting piece 200 is located in the adjusting ring 300, the adjusting ring 300 is fixedly connected with the adjusting piece 200, and the adjusting ring 300 can drive the adjusting piece 200 to rotate along the section of the lens barrel 700. When the lens is focused, the cam plate 100 moves along the first limiting groove 210 on the adjusting piece 200 along the lens barrel 700, the length of the first limiting groove 210 is greater than the moving amount of the lens, so that the movement of the cam plate 100 is not limited, and the cam plate 100 cannot be deformed and damaged. The sleeve 400 blocks the structure inside the lens barrel 700, preventing dust from entering, and ensuring a good appearance when the lens is extended. The main barrel 500 is provided with a limiting through hole 510 around the axis, the adjusting ring 300 drives the adjusting part 200 to rotate left and right in the limiting through hole 510, and the limiting through hole 510 limits the rotating angle of the adjusting part 200 corresponding to the diaphragm adjusting value of the lens. The adjustment handle 600 can secure the adjustment ring 300. The side of the lens barrel 700 is provided with a through groove 710, the width of the through groove 710 corresponds to the width of the limiting through hole 510, and when the lens barrel 700 moves along the axial direction of the lens, the through groove 710 can accommodate the adjusting member 200, so that the adjusting member 200 does not block the movement of the lens barrel 700. The diaphragm pressing ring 800 enables the sleeve 400 to move along the axial direction of the lens along with the lens barrel 700 and to rotate along the section of the lens barrel 700. The filter interface 720 can block the lens barrel 700 and the diaphragm press ring 800, so as to play a role in protection and ensure the appearance of the extended lens.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. A diaphragm adjusting apparatus, which is mounted on a barrel (700) in a lens and movably connected to a diaphragm blade (810) on the barrel (700), comprising:
the diaphragm shutter comprises a cam plate (100) and a first connecting part (110), wherein the cam plate (100) is used for controlling opening and closing of diaphragm blades (810), and the periphery of the cam plate (100) is fixedly connected with the first connecting part;
the adjusting piece (200) is provided with a first limiting groove (210) along the axial direction of the lens, the length of the first limiting groove (210) is larger than the maximum moving amount of the lens barrel (700), the first connecting part (110) is movably connected with the first limiting groove (210) to enable the cam plate (100) to move along the axial direction of the lens, and the adjusting piece (200) drives the cam plate (100) to rotate along the section of the lens barrel (700) through the first limiting groove (210);
the adjusting ring (300), the adjusting part (200) is located in the adjusting ring (300), and the adjusting ring (300) is fixedly connected with the adjusting part (200) so as to drive the adjusting part (200) to rotate along the section of the lens cone (700).
2. The diaphragm adjusting apparatus according to claim 1, wherein: the first connecting part (110) comprises an intermediate connecting plate (130) and a sleeve (400), the cam plate (100) is positioned in the sleeve (400), and the edge of the cam plate (100) is fixedly connected with the inner wall of the sleeve (400) through the intermediate connecting plate (130).
3. The diaphragm adjusting apparatus according to claim 2, wherein: the inner wall of the sleeve (400) is provided with a first mounting groove (420), and the middle connecting plate (130) is clamped with the first mounting groove (420) so as to drive the cam plate (100) to rotate along the section of the lens cone (700).
4. The diaphragm adjusting apparatus according to claim 2, wherein: the outer wall of the sleeve (400) is provided with a second connecting portion (410), and the second connecting portion (410) is movably connected with the first limiting groove (210) so as to enable the sleeve (400) to move along the axial direction of the lens.
5. The diaphragm adjusting apparatus according to claim 2, wherein: still include a main section of thick bamboo (500), a main section of thick bamboo (500) are located sleeve (400) with between the adjustable ring (300), regulating part (200) are located sleeve (400) with between a main section of thick bamboo (500), be provided with spacing through-hole (510) on a main section of thick bamboo (500), regulating part (200) are provided with third connecting portion (220) towards a main section of thick bamboo (500), third connecting portion (220) pass spacing through-hole (510) and fixed connection adjustable ring (300).
6. The diaphragm adjusting apparatus according to claim 5, wherein: still include adjustment handle (600), be provided with the screw thread on adjustment handle (600), be provided with the screw hole on adjustable ring (300), adjustment handle (600) pass through the screw hole butt main section of thick bamboo (500).
7. The diaphragm adjusting apparatus according to claim 5, wherein: the adjusting ring (300) is provided with a second mounting groove (310), and the third connecting portion (220) is fixedly connected with the second mounting groove (310).
8. A lens barrel characterized by comprising the diaphragm adjusting apparatus of any one of claims 1 to 7.
9. The lens barrel according to claim 8, characterized in that: the novel optical diaphragm lens is characterized by comprising a lens barrel (700), wherein the diaphragm blade (810) is installed on the lens barrel (700), the cam plate (100) is clamped with the lens barrel (700) through an elastic sheet, and the cam plate (100) is movably connected with the diaphragm blade (810).
10. The lens barrel according to claim 9, characterized in that: and a filter interface (720) is arranged at the extending end of the lens cone (700).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210519787.7A CN114942557B (en) | 2022-05-13 | 2022-05-13 | Diaphragm adjusting device and lens with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210519787.7A CN114942557B (en) | 2022-05-13 | 2022-05-13 | Diaphragm adjusting device and lens with same |
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| Publication Number | Publication Date |
|---|---|
| CN114942557A true CN114942557A (en) | 2022-08-26 |
| CN114942557B CN114942557B (en) | 2024-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210519787.7A Active CN114942557B (en) | 2022-05-13 | 2022-05-13 | Diaphragm adjusting device and lens with same |
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| CN212623281U (en) * | 2020-07-30 | 2021-02-26 | 广东奥普特科技股份有限公司 | Optical lens |
| CN112596190A (en) * | 2020-12-16 | 2021-04-02 | 广景视睿科技（深圳）有限公司 | Lens focusing assembly and projector |
| CN215867297U (en) * | 2021-06-04 | 2022-02-18 | 江西凤凰光学科技有限公司 | Lens focusing device |
| CN216434502U (en) * | 2021-12-22 | 2022-05-03 | 洛阳拜波赫光电科技有限公司 | Built-in thread-driven adjustable-focus lens structure |
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| CN114942557B (en) | 2024-01-26 |
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