A connection structure between camera lens and filter, camera filter and camera lens

Abstract

The present invention discloses a connection structure between a camera lens and a filter, comprising a filter connection frame for connecting the filter and a locking structure for fixing the filter connection frame on a camera lens frame, wherein the filter connection frame is cooperatively mounted on the periphery of the camera lens frame and is locked by the locking structure. The present invention also discloses a camera filter and a camera lens. The present invention solves the problem of vignetting in video recording and facilitates the installation and removal of filters.

Description

Technical Field

[0001] The invention belongs to the technical field of optical lenses, and in particular relates to a connection structure between a camera lens and a filter, a camera filter and a camera lens. Background Art

[0002] With the development of modern photography technology, various photography techniques have emerged, resulting in many novel and unique photographic works. With the needs of artistic photography, filters with special effects have begun to appear in order to meet the needs of various special effects in photography. Filters are additional lenses installed in front of the camera lens to filter natural light. They are a combination of multiple lenses including UV filters, polarizing filters, neutral density filters, grayscale filters, gradient filters, infrared filters, starlight filters, anti-light damage filters, and soft light filters. Photographers choose the type and number of superimposed lenses according to the needs of their own artistic creation.

[0003] In conventional filter lenses, multiple filter lenses are stacked by threaded connection, which is time-consuming to install and disassemble. Moreover, when multiple filters are screwed together, they may be screwed if not operated properly. In the magnetic filter structure disclosed in patent CN201721290691.9, multiple filter lenses are stacked by magnetic adsorption, which is very convenient to disassemble and install. However, whether it is a threaded filter lens or a magnetically adsorbed lens, there is currently an unavoidable problem: that is, when taking pictures, the connection frame of the filter will partially block the lens and produce a dark angle in the photography. In order to solve this problem, some methods are to increase the diameter of the filter lens so that the diameter of the filter lens is larger than the diameter of the camera lens. Although this method has played a role in reducing the dark angle to a certain extent, it is limited to the installation method of the filter and the lens. The diameter of the filter lens can be increased to a limited extent, and the problem of dark angle in photography cannot be fundamentally solved, especially for cameras with wide-angle lenses. There is currently no good solution to the dark angle problem in photography. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a connection structure between a camera lens and a filter, which solves the problem of camera vignetting by adding a connection structure between the camera lens and the filter, and facilitates the installation and removal of the filter.

[0005] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0006] A connection structure between a camera lens and a filter comprises a filter connection frame for connecting the filter and a locking structure for fixing the filter connection frame on a camera lens frame. The filter connection frame is cooperatively mounted on the periphery of the camera lens frame and locked by the locking structure.

[0007] As a further preferred scheme, the locking structure described in the present invention includes at least two locking devices, each of which includes a locking tongue, a control component for controlling the extension and retraction of the locking tongue, and a fixing member for fixing the locking tongue and the control component on the filter connecting frame; a groove for clamping the locking tongue is provided on the outer periphery of the camera lens frame, and an installation groove for installing the locking device is provided on the filter connecting frame, and a through hole for the locking tongue to enter and exit is provided at the position of the installation groove corresponding to the locking tongue; after installation, the locking tongue passes through the through hole and is clamped in the groove.

[0008] As a further preferred solution, the locking device described in the present invention includes an internal thread arranged on the inner wall of the filter connecting frame and an external thread arranged on the outer periphery of the camera lens frame, and the filter connecting frame is connected to the camera lens frame via the internal thread and the external thread.

[0009] A connection structure between a camera lens and a filter, comprising a filter connection frame for connecting the filter and a locking structure for fixing the filter connection frame on a camera lens frame, and also comprising a lens connection frame, wherein the lens connection frame is mounted on the periphery of the camera lens frame, and the filter connection frame is fixed to the lens connection frame by the locking structure.

[0010] As a further preferred scheme, the locking structure described in the present invention includes at least two locking devices, each of which includes a locking tongue, a control component for controlling the extension and retraction of the locking tongue, and a fixing member for fixing the locking tongue and the control component on the filter connecting frame; a groove for clamping the locking tongue is provided on the outer periphery of the lens connecting frame, and an installation groove for installing the locking device is provided on the filter connecting frame, and a through hole for the locking tongue to enter and exit is provided at the position of the installing groove corresponding to the locking tongue; after installation, the locking tongue passes through the through hole and is clamped in the groove.

[0011] As a further preferred scheme, the control component described in the present invention includes a button and a lock tongue reset mechanism, and the lock tongue reset mechanism includes a spring sheet, a linkage member and a reset spring; one end of the spring sheet is fixed to the fixing member, and the other end of the spring sheet is a free end; one end of the reset spring is fixed to the fixing member, and the other end of the reset spring is connected to the lock tongue; an axis body for installing the linkage member is provided in the mounting groove, the linkage member is rotatably connected to the axis body, one end of the linkage member is connected to the lock tongue, and the other end of the linkage member is connected to the button, and the end of one end of the linkage member connected to the button abuts against the spring sheet.

[0012] As a further preferred solution, the fixing member of the present invention is fixed to the filter connecting frame by screws.

[0013] As a further preferred solution, the locking device described in the present invention includes an internal thread arranged on the inner wall of the filter connecting frame and an external thread arranged on the outer periphery of the lens connecting frame, and the filter connecting frame is connected to the lens connecting frame via the internal thread and the external thread.

[0014] A camera filter comprises a filter assembly and a connection structure between a camera lens and a filter according to the present invention. The filter assembly is a magnetic filter lens, and the filter connection frame is connected to the magnetic filter lens by magnetic adsorption.

[0015] A camera filter comprises a filter assembly and also comprises the connection structure between the camera lens and the filter according to the present invention, wherein the filter connection frame is connected to the filter lens via threads.

[0016] A camera lens comprises a lens assembly and also comprises the camera filter of the present invention.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The connection structure of the camera lens and the filter described in the present invention is installed between the camera lens and the filter to connect the filter to the camera lens. Since the filter connection frame is installed on the periphery of the camera lens frame and the filter is directly installed on the connection structure, when taking pictures, the frame of the filter will not block the lens, thereby avoiding the situation where dark corners are produced in the photography.

[0019] 2. The connection structure of the camera lens and the filter described in the present invention is applicable to different filters, and the connection structure can be combined with the camera head or the filter. It is convenient to install and disassemble, and the photographer can adjust it according to his own needs.

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of the connection structure between the camera lens and the filter according to Embodiment 1 of the present invention;

[0022] Figure 2 This is a schematic diagram of the locking structure described in Example 1 of the present invention;

[0023] Figure 3 This is a schematic diagram of the filter connection frame structure according to Embodiment 1 of the present invention;

[0024] Figure 4 This is a schematic diagram of the connection structure and filter after installation described in Example 1 of the present invention.

[0025] Among them, the figures are marked as: 1 filter; 10, filter connecting frame; 20, locking structure; 21, locking tongue; 22, mounting groove; 23, through hole; 24, button; 25, spring; 26, linkage; 27, return spring; 28, shaft; 30, camera lens frame; 40, fixing part. DETAILED DESCRIPTION

[0026] Example 1

[0027] like Figure 1 , Figure 3 As shown, the connection structure of the camera lens and the filter described in the present invention comprises a filter connection frame 10 for connecting the filter 1 and a locking structure 20 for fixing the filter connection frame 10 on the camera lens frame 30, wherein the filter connection frame 10 is cooperatively mounted on the periphery of the camera lens frame 30 and is locked by the locking structure 20; the locking structure described in the present invention comprises at least two locking devices, each of which comprises a locking tongue 21, a control component for controlling the extension and retraction of the locking tongue, and a fixing member 40 for fixing the locking tongue 21 and the control component on the filter connection frame; a groove for clamping the locking tongue 21 is provided on the periphery of the camera lens frame 30, and an installation groove 22 for installing the locking device is provided on the filter connection frame 10, and a through hole 23 for the locking tongue 21 to enter and exit is provided at a position of the installation groove 22 corresponding to the locking tongue 21; after installation, the locking tongue 21 passes through the through hole 23 and is clamped in the groove. In this solution, when the connection structure is in the installation state, the lock tongue can be inserted into the groove in the camera lens frame through the through hole and locked under the control of the control component, and the connection structure is successfully installed on the camera lens. When the filter needs to be superimposed, the filter can be installed on the connection structure; when the filter is not used, the connection structure can be left directly on the camera lens, or the lock tongue can be removed from the groove through the control component, so that the connection structure can be removed. Since the filter connection frame is installed on the periphery of the camera lens frame, the lens diameter of the filter connected by the connection structure can be larger than the diameter of the camera lens, which fundamentally solves the problem of dark corners in photography.

[0028] On the basis of the above scheme, specifically, the control component described in the present invention includes a button 24 and a lock tongue reset mechanism, and the lock tongue reset mechanism includes a spring piece 25, a linkage member 26 and a reset spring 27; one end of the spring piece 25 is fixed to the fixing member 40, and the other end of the spring piece 25 is a free end; one end of the reset spring 27 is fixed to the fixing member 40, and the other end of the reset spring 27 is connected to the lock tongue 21; a shaft body 28 for installing the linkage member 26 is provided in the mounting groove 22, and the linkage member 26 is rotatably connected to the shaft body 28, one end of the linkage member 26 is connected to the lock tongue 21, and the other end of the linkage member 26 is connected to the button 25, and the end of one end of the linkage member 26 connected to the button 25 abuts against the spring piece 25. When installing the connection structure, align the filter connection frame with the camera lens frame, and when the external force acts, align the lock tongue with the position of the groove, the lock tongue is squeezed by the camera lens frame, and the spring is compressed. When the external force is removed, the spring is reset and the lock tongue is locked in the groove; when disassembling the connection structure, press the button, and one end of the linkage is pushed by the button to squeeze the spring sheet to extend forward. When the linkage rotates along the shaft, the other end drives the lock tongue to move outward and backward. The lock tongue squeezes the spring and is pulled back from the groove, and the connection structure can be removed. More preferably, the groove is an annular groove opened along the outer periphery of the camera lens frame. The design of this annular groove makes installation easier and faster.

[0029] Based on the above solution, as a further preferred solution, the fixing member of the present invention is fixed to the filter connecting frame by screws.

[0030] Example 2

[0031] The connection structure between the camera lens and the filter described in the present invention includes a filter connection frame for connecting the filter and a locking structure for fixing the filter connection frame on the camera lens frame, the filter connection frame is cooperatively mounted on the periphery of the camera lens frame and locked by the locking structure; the locking device includes an internal thread arranged on the inner wall of the filter connection frame and an external thread arranged on the periphery of the camera lens frame, and the filter connection frame is connected to the camera lens frame by the internal thread and the external thread.

[0032] In addition to the methods of the above-mentioned embodiments 1 and 2, the locking structure described in the present invention can also adopt a snap-on structure. For example, at least two blocks are set on the periphery of the filter connecting frame or the camera lens frame, and grooves matching the blocks are set on the filter connecting frame or the camera lens frame where no blocks are set. When installed under the action of external force, the blocks are locked in the grooves, which can also achieve the purpose of installing the connecting structure.

[0033] Example 3

[0034] The connection structure between the camera lens and the filter of the present invention comprises a filter connection frame 10 for connecting the filter and a locking structure 20 for fixing the filter connection frame 10 on the camera lens frame, and also comprises a lens connection frame, wherein the lens connection frame is mounted on the periphery of the camera lens frame, and the filter connection frame 10 is fixed on the lens connection frame through the locking structure. Specifically, the locking structure of the present invention comprises at least two locking devices, each of which comprises a locking tongue 21, a control component for controlling the extension and retraction of the locking tongue 21, and a fixing member 40 for fixing the locking tongue 21 and the control component on the filter connection frame 10; a groove for clamping the locking tongue 21 is arranged on the periphery of the lens connection frame, and an installation groove 22 for installing the locking device is provided on the filter connection frame 10, and a through hole 23 for the locking tongue 21 to enter and exit is arranged at a position of the installation groove 22 corresponding to the locking tongue 21; after installation, the locking tongue 21 passes through the through hole 23 and is clamped in the groove.

[0035] As a further preferred scheme, the control component described in the present invention includes a button 24 and a lock tongue reset mechanism, and the lock tongue reset mechanism includes a spring piece 25, a linkage piece 26 and a reset spring 27; one end of the spring piece 25 is fixed on the fixing piece 40, and the other end of the spring piece 25 is a free end; one end of the reset spring 27 is fixed on the fixing piece 40, and the other end of the reset spring 27 is connected to the lock tongue 21; an axis body 28 for installing the linkage piece 26 is provided in the mounting groove 22, and the linkage piece 26 is rotatably connected to the axis body 28, one end of the linkage piece 26 is connected to the lock tongue 21, and the other end of the linkage piece 26 is connected to the button 24, and the end of one end of the linkage piece 26 connected to the button 24 abuts against the spring piece 25.

[0036] As a further preferred solution, the fixing member of the present invention is fixed to the filter connecting frame by screws.

[0037] Example 4

[0038] The connection structure between the camera lens and the filter described in the present invention includes a filter connection frame for connecting the filter and a locking structure for fixing the filter connection frame on the camera lens frame, and also includes a lens connection frame, the lens connection frame is installed on the outer periphery of the camera lens frame, and the filter connection frame is fixed to the lens connection frame through the locking structure; the locking device includes an internal thread arranged on the inner wall of the filter connection frame and an external thread arranged on the outer periphery of the lens connection frame, and the filter connection frame is connected to the lens connection frame through the internal thread and the external thread.

[0039] Furthermore, in addition to the solutions of the above-mentioned embodiments 3 and 4, the above-mentioned snap-on locking method is also applicable to the structure in which the filter connecting frame is locked on the lens connecting frame.

[0040] As a further solution, based on the above-mentioned embodiments 3 and 4, a UV lens can be installed in the lens connection frame, and directly installed in front of the camera lens as a UV lens, and used together with the camera lens, without affecting the normal use of the lens cover and the lens hood; or it can also be installed in front of the camera lens when installing the connection structure and filter described in the present invention.

[0041] Furthermore, in the solutions of the above-mentioned embodiments 1 and 3, there are at least two locking devices, and may be three or more, and the two or more locking devices are equidistantly distributed on the circumference of the filter connecting frame.

[0042] Example 5

[0043] The present invention also discloses a camera filter, including a filter assembly, and also includes the connection structure between the camera lens and the filter described in any one of the above embodiments 1-4, wherein the filter assembly is a magnetic filter lens, and the filter connection frame is connected to the magnetic filter lens by magnetic adsorption. Preferably, in this solution, the structure of the magnetic filter lens is the magnetic filter structure disclosed in CN201721290691.9, and the structure of the magnetic filter is introduced into the present invention.

[0044] Example 6

[0045] The present invention also discloses a camera filter, including a filter assembly, and also includes a connection structure between a camera lens and a filter as described in any one of the above embodiments 1-4, wherein the filter connection frame is connected to the filter lens via threads.

[0046] On the basis of the above-mentioned Embodiment 5 and Embodiment 6, the present invention further discloses a camera lens, including a lens assembly and the camera filter described in the present invention.

[0047] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A connection structure between a camera lens and a filter, characterized in that: include A filter connection frame for connecting the filter and a locking structure for fixing the filter connection frame on the camera lens frame, the filter connection frame is mounted on the periphery of the camera lens frame and locked by the locking structure; the locking structure includes at least two locking devices, each of which includes a locking tongue, a control component for controlling the extension and retraction of the locking tongue, and a fixing member for fixing the locking tongue and the control component on the filter connection frame; a groove for clamping the locking tongue is provided on the periphery of the camera lens frame, and the groove is an annular groove provided along the periphery of the camera lens frame; an installation groove for installing the locking device is provided on the filter connection frame, and a through hole for the locking tongue to enter and exit is provided at the position of the installation groove corresponding to the locking tongue; after installation, the locking tongue passes through the through hole and is clamped in the groove; and further includes A lens connecting frame is installed on the outer periphery of a camera lens frame, a UV lens is installed in the lens connecting frame, and the filter connecting frame is fixed on the lens connecting frame through a locking structure.

2. The camera lens and filter connection structure according to claim 1, characterized in that: The control component includes a button and a lock tongue reset mechanism, and the lock tongue reset mechanism includes a spring sheet, a linkage member and a reset spring; one end of the spring sheet is fixed to the fixing member, and the other end of the spring sheet is a free end; one end of the reset spring is fixed to the fixing member, and the other end of the reset spring is connected to the lock tongue; an axis body for installing the linkage member is provided in the mounting groove, the linkage member is rotatably connected to the axis body, one end of the linkage member is connected to the lock tongue, and the other end of the linkage member is connected to the button, and the end of one end of the linkage member connected to the button abuts against the spring sheet.

3. The camera lens and filter connection structure according to claim 1, characterized in that: The fixing piece is fixed on the filter connection frame by screws.

4. A camera filter, comprising a filter assembly, characterized in that: It also includes the connection structure between the camera lens and the filter as described in any one of claims 1 to 3, wherein the filter assembly is a magnetic filter lens, and the filter connection frame is connected to the magnetic filter lens by magnetic adsorption.

5. A camera filter, comprising a filter assembly, characterized in that: It also includes the connection structure between the camera lens and the filter according to any one of claims 1 to 3, wherein the filter connection frame is connected to the filter lens via threads.

6. A camera lens, comprising a lens assembly, characterized in that: Also included is a camera filter as claimed in claim 4 or 5.

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