Lens adjusting device and industrial camera using same

Abstract

The utility model discloses a lens adjusting device and an industrial camera using the same. The lens adjusting device comprises a focal length adjusting tooth-shaped ring, an aperture adjusting tooth-shaped ring and an adjusting assembly matched with the focal length adjusting tooth-shaped ring and the aperture adjusting tooth-shaped ring. The adjusting assembly comprises a focal length adjusting gear used for being meshed with the focal length adjusting tooth-shaped ring, an aperture adjusting gear used for being meshed with the aperture adjusting tooth-shaped ring, an electromagnetic push rod connected with the focal length adjusting gear and the aperture adjusting gear at the same time, and a driving motor connected with the electromagnetic push rod. The driving motor is suitable for driving the electromagnetic push rod to rotate so as to drive the aperture adjusting gear and the focal length adjusting gear on the electromagnetic push rod to rotate synchronously. And the electromagnetic push rod is also suitable for moving along the axial direction of the driving motor, so that the aperture adjusting gear is separated from the aperture adjusting tooth-shaped ring when the focal length adjusting gear is meshed with the focal length adjusting tooth-shaped ring, or the focal length adjusting gear is separated from the focal length adjusting tooth-shaped ring when the aperture adjusting gear is meshed with the aperture adjusting tooth-shaped ring.

Description

Technical Field

[0001] The utility model relates to the technical field of zoom cameras, in particular to a lens adjustment device and an industrial camera using the same. Background Art

[0002] A zoom lens is an optical imaging device that has both aperture and focal length adjustment functions. A zoom camera has both a zoom adjustment ring and a focus adjustment ring. The zoom adjustment ring is one of the core components of a zoom camera. It is located on the camera lens, and users can change the focal length of the lens group by rotating it. The focal length of a zoom camera changes continuously in real time with the rotation angle of the zoom adjustment ring. When users want to shoot a distant subject, they can zoom in or out of the subject by rotating the zoom adjustment ring. This flexible zoom function allows users to adjust the focal length according to different shooting needs, capture more details or expand the shooting range. The focus adjustment ring is also an indispensable part of a zoom camera. It allows users to adjust the focus of the camera to ensure that the image taken is clear. By rotating the focus adjustment ring, the image is accurately focused to meet the user's precise control needs for shooting focus. When users see a blurry image in the viewfinder, they can make the image clear by rotating the focus adjustment ring.

[0003] Cameras used for industrial photography are often smaller in size, making it more difficult to design a zoom lens and more expensive to produce. The lenses with zoom functions are more expensive.

[0004] With the promotion of flexible manufacturing, one device needs to be compatible with different product production. Different products need to be shot with different focal lengths and apertures. If industrial cameras and lenses are arranged according to different focal length requirements, it will not only take up equipment space and increase costs, but also be difficult to maintain. Therefore, in order to meet the needs of different product production and consider the issue of reducing the cost of industrial cameras, it is necessary to optimize the structure of industrial cameras so that they have the function of automatically adjusting the focal length and aperture.

[0005] In this regard, the announcement number CN214845978U discloses a remote automatic lens adjustment device, which adjusts the lens by rotating the first adjustment component and the second adjustment component to drive the first adjustment ring and the second adjustment ring set on the optical lens to rotate. Although this adjustment device can adjust the focal length and aperture of the lens, it requires two independent adjustment components to achieve this. This will increase the complexity of the overall adjustment device structure on the one hand, and increase the volume of the overall lens on the other hand.

[0006] In summary, based on the problems existing in the lens zoom device in the prior art, it is necessary to further optimize and improve its structure. Utility Model Content

[0007] The utility model aims to provide a lens adjusting device to solve the technical problem of simplifying the overall structure thereof.

[0008] The utility model aims to provide an industrial camera to solve the technical problem of enabling the camera to have the function of automatically adjusting the focal length and aperture.

[0009] The lens adjustment device of the utility model is implemented as follows:

[0010] A lens adjustment device comprises: a focus adjustment toothed ring, an aperture adjustment toothed ring, and an adjustment component adapted to the focus adjustment toothed ring and the aperture adjustment toothed ring; wherein

[0011] The adjustment assembly includes a focus adjustment gear for meshing with a focus adjustment gear ring, an aperture adjustment gear for meshing with an aperture adjustment gear ring, an electromagnetic push rod connecting the focus adjustment gear and the aperture adjustment gear, and a drive motor connected to the electromagnetic push rod; wherein

[0012] The driving motor is suitable for driving the electromagnetic push rod to rotate, so as to drive the aperture adjustment gear and the focal length adjustment gear on the electromagnetic push rod to rotate synchronously; and

[0013] The electromagnetic push rod is also suitable for axial movement along the driving motor so that the aperture adjustment gear is separated from the aperture adjustment gear ring when the focus adjustment gear is engaged with the focus adjustment gear ring, or the focus adjustment gear is separated from the focus adjustment gear ring when the aperture adjustment gear is engaged with the aperture adjustment gear ring.

[0014] In an optional implementation of the utility model, the electromagnetic push rod includes a stator and a push rod used in conjunction with each other; wherein

[0015] The stator comprises a permanent magnet forming a fixed magnetic field, and a coil is sleeved on the push rod.

[0016] In an optional implementation of the present invention, the push rod passes through the stator and is connected to the output shaft of the drive motor through a keyway, so that the output shaft is suitable for driving the push rod to perform synchronous rotational motion.

[0017] In an optional implementation of the present invention, a movable groove extending along the axial direction of the output shaft of the driving motor is provided, and the pushing rod is suitable for moving along the movable groove.

[0018] In an optional implementation of the utility model, the aperture adjustment gear and the focus adjustment gear are both fixed on a connecting column; and

[0019] The connecting column is fixedly connected to the pushing rod.

[0020] In an optional implementation of the present invention, the connecting column and the push rod are interference fit.

[0021] In an optional implementation of the present invention, the end of the connecting column away from the pushing rod is further provided with a positioning ring movably engaged with the pushing rod.

[0022] The industrial camera of the utility model is realized as follows:

[0023] An industrial camera comprises: a lens body, and the lens adjustment device used in conjunction with the lens body; wherein

[0024] The focus adjustment toothed ring is connected to the zoom ring of the lens body, and the aperture adjustment toothed ring is connected to the aperture adjustment ring of the lens body;

[0025] The driving motor is fixed in the housing of the lens body.

[0026] In an optional implementation of the utility model, the focus adjustment toothed ring is provided with at least one connection hole for engaging with a zoom ring of a lens by bolts; and

[0027] The aperture adjustment toothed ring is provided with at least one bolt hole for being matched with the aperture adjustment ring of the lens by bolts.

[0028] In an optional implementation of the present invention, the focus adjustment toothed ring and the aperture adjustment toothed ring have the same structure; and

[0029] The focal length adjustment gear has the same structure as the aperture adjustment gear.

[0030] By adopting the above technical scheme, the utility model has the following beneficial effects: the lens adjustment device of the utility model and the industrial camera using the same only need one adjustment component to realize the driving of the focal length adjustment gear and the aperture adjustment gear, so that the adjustment of the focal length and aperture of the lens are both realized by one adjustment component, thereby simplifying the structure of the overall lens adjustment device and meeting the adjustment requirements for the focal length and aperture of the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the lens adjustment device of the utility model applied in a lens;

[0032] Figure 2 It is a structural schematic diagram of the adjustment component of the lens adjustment device of the utility model;

[0033] Figure 3 It is a partial structural schematic diagram of the adjustment component of the lens adjustment device of the utility model;

[0034] Figure 4 It is a structural schematic diagram of the electromagnetic push rod of the adjustment assembly of the lens adjustment device of the utility model;

[0035] Figure 5 It is a partial structural schematic diagram of the lens adjustment device of the utility model;

[0036] Figure 6 It is a structural schematic diagram of the aperture adjustment gear ring of the lens adjustment device of the utility model;

[0037] Figure 7 It is a structural schematic diagram of the focus adjustment gear ring of the lens adjustment device of the utility model;

[0038] Figure 8 It is a schematic structural diagram of the housing of the lens of the industrial camera of the present utility model.

[0039] In the figure: driving motor d1, stator t11, coil t13, push rod t15, focus adjustment gear ring s12, connecting hole 121, aperture adjustment gear ring s11, bolt hole 111, focus adjustment gear s2, aperture adjustment gear s1, housing 1, connecting column 2, positioning ring 3, lens body 5. DETAILED DESCRIPTION

[0040] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0041] Embodiment 1:

[0042] See also Figures 1 to 7 As shown, this embodiment provides a lens adjustment device, including: a focus adjustment toothed ring s12, an aperture adjustment toothed ring s11, and an adjustment component adapted to the focus adjustment toothed ring s12 and the aperture adjustment toothed ring s11. That is to say, the adjustment component can cooperate with the focus adjustment toothed ring s12 and the aperture adjustment toothed ring s11 at the same time to form a driving effect for the focus adjustment toothed ring s12 and the aperture adjustment toothed ring s11.

[0043] In order to meet the above-mentioned usage requirements, specifically, the adjustment component used in this embodiment includes a focus adjustment gear s2 for meshing with the focus adjustment gear ring s12, an aperture adjustment gear s1 for meshing with the aperture adjustment gear ring s11, an electromagnetic push rod connecting the focus adjustment gear s2 and the aperture adjustment gear s1 at the same time, and a drive motor d1 connected to the electromagnetic push rod.

[0044] Based on the above situation, the driving motor d1 is suitable for driving the electromagnetic push rod to rotate, so as to drive the aperture adjustment gear s1 and the focal length adjustment gear s2 on the electromagnetic push rod to rotate synchronously; and the electromagnetic push rod is also suitable for axial movement along the driving motor d1, so that when the focal length adjustment gear s2 is engaged with the focal length adjustment gear ring s12, the aperture adjustment gear s1 is separated from the aperture adjustment gear ring s11, or when the aperture adjustment gear s1 is engaged with the aperture adjustment gear ring s11, the focal length adjustment gear s2 is separated from the focal length adjustment gear ring s12.

[0045] In more detail, the electromagnetic push rod includes a stator t11 and a push rod t15 used in conjunction with each other; wherein the stator t11 includes a permanent magnet that forms a fixed magnetic field, and the push rod t15 is sleeved with a coil t13. The stator t11 can be optionally fixed to the housing of the drive motor d1; and the push rod t15 passes through the stator t11 and is connected to the output shaft of the drive motor d1 through a keyway, so that the output shaft is suitable for driving the push rod t15 to perform synchronous rotational motion. When the coil t13 is energized, the magnetic field generated interacts with the magnetic field generated by the stator t11, pushing the push rod t15 to move along the axial direction of the drive motor d1.

[0046] Regarding the above situation, it should be noted that, in order to facilitate assembly, a movable groove extending along the axial direction of the output shaft of the driving motor d1 is provided, and the push rod t15 is suitable for moving along the movable groove. A keyway matching structure is formed between the push rod t15 and the movable groove, so that the output shaft of the driving motor d1 can drive the push rod t15 to rotate, and the push rod t15 itself can also move axially relative to the output shaft of the driving motor d1, and the axial movement can be in the direction away from the driving motor d1, or in the direction toward the driving motor d1. However, it is necessary to explain that when the push rod t15 moves axially relative to the output shaft of the driving motor d1, the push rod t15 and the output shaft of the driving motor d1 always remain connected and will not be separated from each other.

[0047] In more detail, an optional situation is given in conjunction with the accompanying drawings. In order to facilitate the quick and reliable assembly of the aperture adjustment gear s1 and the focus adjustment gear s2 with the push rod t15, the present embodiment is designed as follows:

[0048] The aperture adjustment gear s1 and the focal length adjustment gear s2 are both fixed on a connecting column 2; and the connecting column 2 is fixedly connected to the push rod t15. Optionally, the connecting column 2 and the push rod t15 are interference fit. Here, it is said that for the aperture adjustment gear s1 and the focal length adjustment gear s2 of this embodiment, the two are coaxially arranged. Under this structure, it is only necessary to connect the connecting column 2 with the electromagnetic push rod to achieve the effect that the electromagnetic push rod can drive the aperture adjustment gear s1 and the focal length adjustment gear s2 to move together.

[0049] Furthermore, in order to improve the reliability and stability of the electromagnetic push rod in driving the aperture adjustment gear s1 and the focus adjustment gear s2 to move together, a positioning ring 3 movably matched with the push rod t15 is further provided at one end of the connecting column 2 away from the push rod t15.

[0050] In summary, for the lens adjustment device of this embodiment, its specific implementation principle is as follows: after the coil t13 is energized, the magnetic field generated interacts with the magnetic field generated by the stator t11, driving the push rod t15 to move along the axial direction of the drive motor d1 in the direction away from the drive motor d1, so that the aperture adjustment gear s1 is meshed with the aperture adjustment toothed ring s11 and the focus adjustment gear s2 is separated from the focus adjustment toothed ring s12. At this time, the drive motor d1 is started, driving the electromagnetic push rod to rotate, thereby causing the aperture adjustment gear s1 to rotate, and the rotation of the aperture adjustment gear s1 drives the aperture adjustment toothed ring s11 to move. When the lens adjustment device is applied to a specific lens, the aperture size can be adjusted. Alternatively, after the coil t13 is energized, the magnetic field generated interacts with the magnetic field generated by the stator t11, driving the push rod t15 to move along the axial direction of the drive motor d1 toward the drive motor d1, so that the focus adjustment gear s2 engages with the focus adjustment toothed ring s12 and the aperture adjustment gear s1 engages with the aperture adjustment toothed ring s11. At this time, the drive motor d1 starts, driving the electromagnetic push rod to rotate, thereby causing the focus adjustment gear s2 to rotate, and the rotation of the focus adjustment gear s2 drives the focus adjustment toothed ring s12 to move. When the lens adjustment device is used in a specific lens, the focal length can be adjusted.

[0051] Embodiment 2:

[0052] See also Figures 1 to 8 As shown, based on the lens adjustment device of Example 1, this embodiment provides an industrial camera, including: a lens body 5, and the lens adjustment device of Example 1 used in conjunction with the lens body 5; wherein the focus adjustment gear ring s12 is connected to the zoom ring of the lens body 5, and the aperture adjustment gear ring s11 is connected to the aperture adjustment ring of the lens body 5; the driving motor d1 is fixed in the housing 1 of the lens body 5, and the positioning ring 3 is also fixed on the housing 1 of the lens body 5.

[0053] Taking an optional situation as an example in conjunction with the accompanying drawings, the focus adjustment gear ring s12 is provided with at least one connecting hole 121 for bolting with the zoom ring of the lens; and the aperture adjustment gear ring s11 is provided with at least one bolt hole 111 for bolting with the aperture adjustment ring of the lens.

[0054] In addition, in a specific optional implementation, the focus adjustment toothed ring s12 has the same structure as the aperture adjustment toothed ring s11, and preferably both are annular structures; and the focus adjustment gear s2 has the same structure as the aperture adjustment gear s1. With this design, when actually assembling the lens of an industrial camera, there is no need to distinguish between the focus adjustment toothed ring s12 and the aperture adjustment toothed ring s11, and to distinguish between the focus adjustment gear s2 and the aperture adjustment gear s1, which improves the convenience of assembly and reduces the difficulty of production.

[0055] For the industrial camera of this embodiment, only one adjustment component is needed to drive the focal length adjustment gear s2 and the aperture adjustment gear s1, so that the adjustment of the focal length and aperture of the lens are both achieved by one adjustment component, thereby simplifying the structure of the overall lens adjustment device and meeting the adjustment requirements for the focal length and aperture of the lens.

[0056] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific 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 protection scope of the present invention.

[0057] In the description of the present invention, it is necessary to understand that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and 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 therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0060] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0061] In the present utility model, unless otherwise clearly specified and limited, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being above, above, and above the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being below, below, and below the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

Claims

1. A lens adjustment device, characterized in that: include: A focus adjustment gear ring, an aperture adjustment gear ring, and an adjustment component adapted to the focus adjustment gear ring and the aperture adjustment gear ring; in The adjustment assembly includes a focus adjustment gear for meshing with the focus adjustment gear ring, an aperture adjustment gear for meshing with the aperture adjustment gear ring, an electromagnetic push rod connecting the focus adjustment gear and the aperture adjustment gear, and a drive motor connected to the electromagnetic push rod; in The driving motor is suitable for driving the electromagnetic push rod to rotate, so as to drive the aperture adjustment gear and the focal length adjustment gear on the electromagnetic push rod to rotate synchronously; as well as The electromagnetic push rod is also suitable for axial movement along the driving motor so that the aperture adjustment gear is separated from the aperture adjustment gear ring when the focus adjustment gear is engaged with the focus adjustment gear ring, or the focus adjustment gear is separated from the focus adjustment gear ring when the aperture adjustment gear is engaged with the aperture adjustment gear ring.

2. The lens adjustment device according to claim 1, characterized in that: The electromagnetic push rod comprises a stator and a push rod used in conjunction with each other; wherein The stator comprises a permanent magnet forming a fixed magnetic field, and a coil is sleeved on the push rod.

3. The lens adjustment device according to claim 2, characterized in that: The push rod passes through the stator and is connected to the output shaft of the driving motor through a keyway, so that the output shaft is suitable for driving the push rod to perform synchronous rotational motion.

4. The lens adjustment device according to claim 3, characterized in that: An active slot extending along the axial direction of the output shaft of the driving motor is provided in the output shaft, and the pushing rod is suitable for moving along the active slot.

5. The lens adjustment device according to any one of claims 2 to 4, characterized in that: The aperture adjustment gear and the focal length adjustment gear are both fixed on a connecting column; and The connecting column is fixedly connected to the pushing rod.

6. The lens adjustment device according to claim 5, characterized in that: The connecting column and the pushing rod are interference fit.

7. The lens adjustment device according to claim 5, characterized in that: The end of the connecting column away from the pushing rod is also provided with a positioning ring movably matched with the pushing rod.

8. An industrial camera, characterized in that: include: A lens body, and a lens adjustment device as claimed in any one of claims 1 to 7 used in conjunction with the lens body; in The focus adjustment toothed ring is connected to the zoom ring of the lens body, and the aperture adjustment toothed ring is connected to the aperture adjustment ring of the lens body; The driving motor is fixed in the housing of the lens body.

9. The industrial camera according to claim 8, characterized in that: The focus adjustment toothed ring is provided with at least one connection hole for engaging with the zoom ring of the lens by bolts; and The aperture adjustment toothed ring is provided with at least one bolt hole for being matched with the aperture adjustment ring of the lens by bolts.

10. The industrial camera according to claim 8 or 9, characterized in that: The focus adjustment gear ring has the same structure as the aperture adjustment gear ring; and The focal length adjustment gear has the same structure as the aperture adjustment gear.

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