Mobile group, optical system and camera device

Abstract

The present invention discloses a mobile group, an optical system and a camera device, and relates to the field of optical technology. The present invention comprises: a mobile frame, the mobile frame is made of hot-melt material, a lens is arranged in the mobile frame; a mounting groove for mounting the lens is arranged in the mobile frame, at least one end of the mobile frame is provided with a mounting opening for the lens to enter the mounting groove; one end of the mobile frame with the mounting opening is used to bend inwards and be hot-melted to the lens. The present invention reduces the thickness of the mobile frame at the outer end of the lens, thereby increasing the moving distance of the mobile group and the focusing range of the mobile group.

Description

Technical Field

[0001] The present invention relates to the field of optical technology, and in particular to a mobile group, an optical system and a camera device. Background Art

[0002] A zoom lens is a camera lens that can change its focal length within a certain range, thereby obtaining different widths of field angles, different sizes of images, and different ranges of scenery. A zoom lens can change the shooting range by changing the focal length without changing the shooting distance, so it is very helpful for picture composition.

[0003] When zooming, the zoom lens usually changes its focal length through the moving group inside it. Currently, since the lens needs to be fixed, the moving group inside the zoom lens has longer edges in front and behind the outer diameter of the lens, which reduces the range in which the moving group can move. The moving distance of the moving group is small, which reduces the zoom range of the zoom lens. Summary of the invention

[0004] The present invention will solve the existing technical problems and provide a mobile group, an optical system and a camera device, which reduce the thickness of the mobile frame at the outer end of the lens, thereby increasing the moving distance of the mobile group and the focusing range of the mobile group.

[0005] The technical solution provided by the present invention is as follows:

[0006] A mobile group comprises: a mobile frame, the mobile frame is made of hot-melt material, a lens is arranged in the mobile frame; a mounting groove for mounting the lens is arranged in the mobile frame, at least one end of the mobile frame is provided with a mounting opening for the lens to enter the mounting groove; the end of the mobile frame with the mounting opening is used to be bent inwards and hot-melted to the lens.

[0007] In the technical solution, by hot-melting the end of the moving frame onto the lens, the thickness of the moving frame at the outer end of the lens is reduced, thereby increasing the moving distance of the moving group and the focusing range of the moving group.

[0008] Preferably, a fixed frame is provided in the movable frame, and the lens is arranged in the mounting groove through the fixed frame.

[0009] In the technical solution, by setting a fixed frame, the possibility of axis jump of the lenses set in the mobile group is reduced, the coaxiality between multiple lenses is increased, the possibility of breathing effect of the mobile group is reduced, and the imaging quality of the mobile group is improved.

[0010] Preferably, one end of the fixed frame close to the mounting opening is flush with one end of the lens close to the mounting opening; and the movable frame is also used for hot-melting onto the fixed frame.

[0011] In the present technical solution, by hot-melting the movable frame to the fixed frame, the constraints between the movable frame and the fixed frame, as well as the constraints between the lens and the fixed frame are further increased, thereby reducing the possibility of lens jumping and the possibility of lens position deviation, and increasing the imaging accuracy of the mobile group.

[0012] Preferably, the inner diameter of the fixing frame is the same as the outer diameter of the lens.

[0013] In the present technical solution, when the inner diameter of the fixed frame is the same as the outer diameter of the lens, the possibility of deformation of the fixed frame and the lens after installation is reduced, thereby reducing the possibility of lens position deviation and increasing the coaxiality between multiple lenses.

[0014] Preferably, an abutment platform for the lens to abut is provided in the fixing frame.

[0015] In the technical solution, the abutment platform is provided to facilitate the surface of the lens to rest on the abutment platform, further reducing the possibility of the lens installed in the fixed frame jumping and increasing the stability of the lens.

[0016] Preferably, the fixing frame is made of metal material.

[0017] In this technical solution, the strength of the fixed frame is further increased and the possibility of deformation of the fixed frame is reduced by selecting metal materials; at the same time, the fixed frame is easy to process, the assembly accuracy between the lens and the mobile frame is increased, and the imaging performance of the mobile group is improved.

[0018] Preferably, the lens is chamfered to form a heat-melting surface, and the movable frame is heat-fused to the heat-melting surface.

[0019] In the present technical solution, by setting the heat-melt surface formed by chamfering, the movable frame after heat melting can be distributed on the heat-melt surface, further reducing the thickness of the movable frame at the outer end of the lens, thereby increasing the moving distance of the movable group and increasing the focusing range of the movable group.

[0020] Preferably, the movable frame comprises a mounting portion for mounting the lens and a hot-melt portion for hot-melting with the lens; and the thickness of the hot-melt portion gradually decreases in a direction away from the mounting portion.

[0021] In the present technical solution, the volume of the movable frame after hot melting on the lens is reduced by limiting the structure of the hot melting part; at the same time, the thickness of the outer end is relatively small, which reduces the reaction force of the hot melting part on the hot melting device and accelerates the hot melting process of the hot melting device on the movable frame.

[0022] In this technical solution, compared with the prior art, the mobile group, optical system and camera device provided by the present invention have the following beneficial effects:

[0023] 1. By hot-melting the end of the moving frame onto the lens, the thickness of the moving frame at the outer end of the lens is reduced, thereby increasing the moving distance of the moving group and the focusing range of the moving group.

[0024] 2. By setting the fixed frame, the possibility of the axis of the lens set in the mobile group is reduced, the coaxiality between multiple lenses is increased, the possibility of the mobile group generating a breathing effect is reduced, and the imaging quality of the mobile group is improved.

[0025] 3. By hot-melting the mobile frame to the fixed frame, the constraints between the mobile frame and the fixed frame, as well as the constraints between the lens and the fixed frame are further increased, which reduces the possibility of lens jumping and the possibility of lens position deviation, and increases the imaging accuracy of the mobile group.

[0026] 4. The selection of metal materials further increases the strength of the fixed frame and reduces the possibility of deformation of the fixed frame. At the same time, the fixed frame is easy to process, which increases the assembly accuracy between the lens and the mobile frame and improves the imaging performance of the mobile group. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The preferred implementation scheme will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of a mobile group, an optical system and a camera device.

[0028] Figure 1 It is a structural schematic diagram of a mobile group before hot melting of the present invention;

[0029] Figure 2 It is an internal cross-sectional view of a mobile group before hot melting of the present invention;

[0030] Figure 3 yes Figure 2 A local enlarged view of point A;

[0031] Figure 4 It is a schematic diagram of the structure of the hot melt device;

[0032] Figure 5 It is a partial enlarged view of the hot melt opening in the hot melt device;

[0033] Figure 6 It is a schematic diagram of the structure of a mobile group after hot melting of the present invention.

[0034] Explanation of the accompanying drawings: 10, movable frame; 101, mounting portion; 102, hot melt portion; 11, mounting groove; 12, mounting port; 20, lens; 21, hot melt surface; 30, fixed frame; 31, abutment platform; 32, fixed hot melt surface; 40, hot melt device; 41, hot melt port. DETAILED DESCRIPTION

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0036] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0037] According to an embodiment provided by the present invention, Figure 1 and Figure 2 As shown, a mobile group includes:

[0038] The moving frame 10 is made of a hot-melt material. In the present embodiment, the hot-melt material mainly refers to polycarbonate (PC). The shape of the moving frame 10 can be freely modified according to the needs of the user. A lens 20 is provided in the moving frame 10. The lens 20 is embedded in the inner side of the moving frame 10. In the present embodiment, a plurality of lenses 20 are provided. The axes of the plurality of lenses 20 are horizontally arranged, and the axes of the plurality of lenses 20 are collinear.

[0039] A mounting groove 11 for mounting the lens 20 is provided in the moving frame 10. The mounting groove 11 is arranged inside the moving frame 10 and is a hollow cylinder. The lens 20 can be snapped or glued into the moving frame 10, and the axis of the lens 20 can be colinear with the axis of the mounting groove 11. At least one end of the moving frame 10 is provided with a mounting opening 12 for the lens 20 to enter the mounting groove 11. The lens 20 can enter the mounting groove 11 from the mounting opening 12 at the end of the moving frame 10. In this embodiment, the mounting opening 12 is opened at the right end of the moving frame 10.

[0040] One end of the movable frame 10 having the mounting opening 12 is used to be bent inward and hot-fused onto the lens 20; after the right end of the movable frame 10 is bent inward and hot-fused onto the rightmost lens 20, the thickness of the movable frame 10 on the right side of the rightmost lens 20 is further reduced, thereby increasing the movement amount of the movable group.

[0041] Combination Figures 4 to 6As shown, the hot melt device 40 can perform hot melt on the rightmost end of the moving frame 10. The hot melt device 40 is also provided with a hot melt opening 41 for hot melt on the end of the moving frame. When the right end of the moving frame 10 contacts the inner wall of the hot melt opening 41, the end of the moving frame 10 is hot melted and connected to the lens 20. Figure 5 shown.

[0042] In this embodiment, by hot-melting the end of the moving frame 10 onto the lens 20, the thickness of the moving frame 10 outside the lens 20 is reduced, thereby increasing the moving distance of the moving group and the focusing range of the moving group.

[0043] According to another embodiment provided by the present invention, Figure 2 As shown, a mobile group, the difference between this embodiment and the first embodiment lies in the setting of the fixed frame 30.

[0044] On the basis of the first embodiment, in this embodiment, a fixed frame 30 is provided inside the moving frame 10, and the lens 20 is arranged in the mounting groove 11 through the fixed frame 30; in this embodiment, the fixed frame 30 is cylindrical, and the axis of the fixed frame is colinear with the axis of the lens 20, so the lens 20 can be arranged inside the fixed frame 30. At the same time, the axis of the fixed frame 30 can be aligned with the axis of the mounting groove 11 inside the moving frame 10, so the fixed frame 30 can be tightly arranged in the moving frame 10.

[0045] By setting the fixed frame 30, the possibility of axis jumping of the lens 20 set in the moving group is reduced, the coaxiality between the multiple lenses 20 is increased, the possibility of breathing effect of the moving group is reduced, and the imaging quality of the moving group is improved.

[0046] One end of the fixed frame 30 close to the mounting opening 12 is flush with the end of the lens 20 close to the mounting opening 12, and the movable frame 10 is also used for hot-melting onto the fixed frame 30; specifically, the right side of the fixed frame 30 is flush with the right end of the lens 20; in this embodiment, by hot-melting the movable frame 10 to the fixed frame 30, the constraints between the movable frame 10 and the fixed frame 30, as well as the constraints between the lens 20 and the fixed frame 30 are further increased, thereby reducing the possibility of the lens 20 jumping, and also reducing the possibility of the position deviation of the lens 20, thereby increasing the imaging accuracy of the mobile group.

[0047] Specifically, the inner diameter of the fixed frame 30 is the same as the outer diameter of the lens 20; in this embodiment, when the inner diameter of the fixed frame 30 is the same as the outer diameter of the lens 20, the possibility of deformation of the fixed frame 30 and the lens 20 after installation is reduced, thereby reducing the possibility of position displacement of the lens 20 and increasing the coaxiality between multiple lenses 20.

[0048] An abutment platform 31 for the lens 20 to abut is provided in the fixed frame 30; through the provision of the abutment platform 31, the surface of the lens 20 is conveniently supported on the abutment platform 31, further reducing the possibility of the lens 20 installed in the fixed frame 30 jumping and increasing the stability of the lens 20.

[0049] According to the improvement of the above embodiment, in the present embodiment, the fixed frame 30 is made of metal material; by selecting the metal material, the strength of the fixed frame 30 is further increased, and the possibility of deformation of the fixed frame 30 is reduced; at the same time, the fixed frame 30 is easy to process, and the assembly accuracy between the lens 20 and the movable frame 10 is increased, thereby increasing the imaging performance of the movable group.

[0050] Due to the selection of metal materials, the metal has a higher flatness, which further reduces the problem of large tilt of the lens 20 after installation, and improves the imaging performance of the mobile group.

[0051] According to another embodiment provided by the present invention, Figure 2 and Figure 3 As shown, a mobile group, the difference between this embodiment and the first embodiment lies in the setting of the hot melt surface.

[0052] On the basis of the first embodiment, in this embodiment, the lens 20 is chamfered to form a hot-melt surface 21, and the moving frame 10 is hot-melted to the hot-melt surface 21; in this embodiment, by setting the hot-melt surface 21 formed by chamfering, the moving frame 10 after hot-melting can be distributed on the hot-melt surface 21, which further reduces the thickness of the moving frame 10 at the outer end of the lens 20, thereby increasing the moving distance of the moving group and increasing the focusing range of the moving group.

[0053] The movable frame 10 includes a mounting portion 101 for mounting the lens 20 and a hot-melt portion 102 for hot-melting with the lens 20, that is, the mounting portion 101 is arranged in the middle of the movable frame 10, and the hot-melt portion 102 is arranged at both ends of the movable frame 10; along the direction away from the mounting portion 101, the thickness of the hot-melt portion 102 gradually decreases, that is, the closer the hot-melt portion 102 is to the outer end, the smaller the thickness of the hot-melt portion 102 is.

[0054] By limiting the structure of the hot melt portion 102, the volume of the movable frame 10 after hot melting on the lens 20 is reduced; at the same time, the thickness of the outer end is smaller, which reduces the reaction force of the hot melt portion 102 on the hot melting device and accelerates the hot melting process of the hot melting device on the movable frame 10.

[0055] At the same time, the hot melt surface described in this embodiment can also be applied to the mobile group described in the second embodiment, and a fixed hot melt surface 32 needs to be set at one end of the fixed frame 30 close to the installation port 12. The fixed hot melt surface 32 and the hot melt surface 21 are in the same plane. After bending, the mobile frame 10 can simultaneously abut against the fixed hot melt surface 32 and the hot melt surface 21, thereby achieving a hot melt effect.

[0056] According to an embodiment provided by the present invention, Figures 1 to 6 As shown, an optical system includes a mobile group as described in any one of the above embodiments.

[0057] According to an embodiment provided by the present invention, Figures 1 to 6 As shown, a camera device includes an optical system described in the above embodiment.

[0058] It should be noted that the above embodiments can be freely combined as needed. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. A mobile group, characterized in that: include: A moving frame, the moving frame is made of hot-melt material, and a lens is arranged inside the moving frame; The movable frame is provided with a mounting groove for mounting the lens, and at least one end of the movable frame is provided with a mounting opening for the lens to enter the mounting groove; One end of the movable frame with a mounting opening is used to be bent inward and hot-melted onto the lens; A fixed frame is provided in the movable frame, and the lens is arranged in the mounting groove through the fixed frame; The fixing frame is cylindrical, and the axis of the fixing frame is colinear with the axis of the lens; The lens is chamfered to form a heat-melting surface, and the movable frame is heat-melted to the heat-melting surface; The moving frame comprises a mounting portion for mounting the lens and a hot-melt portion for hot-melting with the lens; The thickness of the heat-melting portion gradually decreases in a direction away from the mounting portion.

2. A mobile group according to claim 1, characterized in that: One end of the fixing frame close to the mounting opening is flush with one end of the lens close to the mounting opening; The movable frame is also used for hot-melting onto the fixed frame.

3. A mobile group according to claim 1, characterized in that: The inner diameter of the fixing frame is the same as the outer diameter of the lens.

4. A mobile group according to claim 1, characterized in that: An abutment platform for the lens to abut is arranged in the fixing frame.

5. A mobile group according to any one of claims 1 to 4, characterized in that: The fixing frame is made of metal material.

6. An optical system, characterized in that: Comprising a mobile group as described in any one of claims 1-5.

7. A camera device, characterized in that: Comprising an optical system as claimed in claim 6.

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