Filter structure and lens

Abstract

The utility model relates to the technical field of shooting lenses, and discloses a filter structure and a lens, the filter structure comprises a filter base, a filter piece, a filter hoop, a spring, a button and a lens frame pressing ring, the filter piece is arranged in the front end of the filter base, the filter hoop is arranged in the rear end of the filter base, the spring is arranged between the filter base and the filter hoop, and the button is arranged on the filter frame pressing ring. The button penetrates through the filter base to be installed on the filter hoop, and the filter frame pressing ring is in contact connection with the side, away from the filter, of the filter hoop. The spring on the filter hoop can be gradually compressed by turning the button, that is, when the novel filter structure is arranged on a common lens, the common lens enters through the lens frame pressing ring by pinching the button with a hand, the spring is in a compressed state by screwing the button, and the common lens can enter the filter hoop. The compression force applied to the spring is reduced by rotating the button, the spring presses the inner wall of one side of the filter hoop against the outer wall of the common lens, and the common lens is fixed through the filter hoop and the lens frame pressing ring.

Description

Technical Field

[0001] The utility model relates to the technical field of shooting lenses, and more specifically, the utility model relates to a filter structure and a lens. Background Art

[0002] At present, the lenses used in traditional cameras and camcorders can only shoot scenes in the vertical direction in ordinary environments, and it is very difficult to shoot in narrow, dark, humid, especially shallow water environments; when shooting tiny objects, such as insects, or the inner cavities of small objects, the lens often cannot be inserted to achieve normal shooting; when shooting in a narrow space, it is very difficult to avoid the front lens of the lens hitting an object, resulting in lens damage and bringing certain risks to shooting. For this reason, the utility model provides a filter structure and a lens. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a filter structure and a lens, which have the advantage of stronger adaptability.

[0004] To achieve the above object, the utility model provides the following technical solution: a filter structure, comprising:

[0005] A filter base;

[0006] A filter lens, which is arranged inside the front end of the filter base;

[0007] A filter clamp, which is arranged inside the rear end of the filter base;

[0008] At least one group of springs, which are arranged between the filter base and the filter clamp;

[0009] A button, which penetrates through the filter base and is connected to the filter clamp;

[0010] A frame retaining ring, which is in contact connection with the side of the filter clamp away from the filter lens, and the frame retaining ring is arranged inside the rear end of the filter base.

[0011] As a preferred technical solution of the present invention, a first through hole is arranged on the side of the filter base, a first groove and a second groove are arranged on the side of the filter clamp, one end of the spring contacts the inner wall of the rear end of the filter base, and the other end contacts the inner wall of the first groove, and the button can be screwed into the second groove through the first through hole.

[0012] As a preferred technical solution of the present invention, the filter base is of a ring structure, the filter lens is coaxially arranged inside the front end of the filter base, the filter clamp is coaxially arranged inside the rear end of the filter base, and the lens frame retaining ring is coaxially arranged inside the rear end of the filter support.

[0013] As a preferred technical solution of the present invention, it further includes:

[0014] A filter retaining ring, which is arranged at the front end of the filter base. A first clamping groove is arranged on the inner wall of the front end of the filter base. The filter retaining ring fixes the filter lens at the front end of the filter base through the first clamping groove.

[0015] As a preferred technical solution of the present invention, a second clamping groove is further arranged on the inner wall of the rear end of the filter base. The lens frame retaining ring restricts the filter clamp in the filter base through the second clamping groove.

[0016] As a preferred technical solution of the present invention, internal threads are arranged on the inner wall of the second groove.

[0017] As a preferred technical solution of the present invention, the button includes:

[0018] A knob member, on which a second through hole is arranged. The knob member can enter into the first through hole, and the second through hole is aligned with the second groove;

[0019] A bolt, which penetrates through the second through hole and enters into the second groove;

[0020] Wherein, rotating the knob member can drive the bolt to rotate.

[0021] As a preferred technical solution of the present invention, the outer surface of the knob member is set as an anti-slip structure.

[0022] As a preferred technical solution of the present invention, a ring-shaped retaining ring is arranged in the inner wall of the filter base. The retaining ring divides the filter base into a front end and a rear end. One side of the filter lens contacts the retaining ring, and the other side of the filter clamp contacts the retaining ring.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: By arranging a filter lens at the front end of the filter base, arranging a filter clamp and a lens frame retaining ring at the rear end, arranging a spring at one end of the filter clamp and a button at the other side, the compression degree of the spring by the filter clamp can be controlled by rotating the knob button, so that the filter clamp and the lens frame retaining ring are used in cooperation on probe lenses of different sizes, can adapt to different types of probe lenses, and at the same time, it is more convenient to replace the filter, increasing the creativity of shooting. Description of the Drawings

[0024] Figure 1 Explosion structure schematic diagram of a filter structure provided by an embodiment of the present utility model;

[0025] Figure 2 Front view of a filter structure provided by an embodiment of the present utility model;

[0026] Figure 3 is Figure 2 Schematic diagram of the sectional structure of A-A shown;

[0027] Figure 4 Overall structure schematic diagram of a filter structure provided by an embodiment of the present utility model.

[0028] In the figure: filter base 1, first through hole 100, filter lens 2, filter hoop 3, first groove 300, second groove 310, spring 4, button 5, knob member 500, bolt 510, filter retaining ring 6, frame retaining ring 7. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0030] Embodiment

[0031] As Figures 1-4 shown, the present utility model provides a filter structure, including: filter base 1, filter lens 2, filter hoop 3, spring 4, button 5, frame retaining ring 7. The filter lens 2 is arranged inside the front end of the filter base 1, the filter hoop 3 is arranged inside the rear end of the filter base 1, the spring 4 is arranged between the filter base 1 and the filter hoop 3, the button 5 penetrates through the filter base 1 and is installed on the filter hoop 3. Rotating the button 5 can control the expansion and contraction of the spring 4. The frame retaining ring 7 is in contact connection with the side of the filter hoop 3 away from the filter lens 2, and the frame retaining ring 7 is arranged inside the rear end of the filter base 1. As Figure 3 shown, by rotating the button 5, the spring 4 on the filter hoop 3 can be gradually compressed. That is, when this new type of filter structure is arranged on an ordinary lens, hold the button 5 by hand and insert the ordinary lens through the frame retaining ring 7. Rotate the button 5 to make the spring 4 in a compressed state. The ordinary lens can enter into the filter hoop 3. Rotate the button 5 to reduce the compressive force on the spring 4. The spring 4 presses the inner wall of one side of the filter hoop 3 against the outer wall of the ordinary lens. The ordinary lens is fixed by the filter hoop 3 and the frame retaining ring 7. With this new type of filter structure, it can adapt to different types of probe lenses, and at the same time, it is more convenient to replace the filter, increasing the creativity of shooting.

[0032] In this embodiment, preferably, a first through hole 100 is provided on the side of the filter base 1, a first groove 300 and a second groove 310 are provided on the side of the filter clamp 3, one end of the spring 4 contacts the inner wall of the rear end of the filter base 1, and the other end contacts the inner wall of the first groove 300. The button 5 can be screwed into the second groove 310 through the first through hole 100. Among them, the filter base 1 is of a ring structure, the filter lens 2 is coaxially arranged inside the front end of the filter base 1, the filter clamp 3 is coaxially arranged inside the rear end of the filter base 1, and the frame retaining ring 7 is coaxially arranged inside the rear end of the filter support. As Figure 3 shown, the diameter of the filter clamp 3 is larger than the diameter of the filter retaining ring 6, which can more conveniently allow a common lens to enter the filter clamp 3.

[0033] In this embodiment, it further includes: a filter retaining ring 6, the filter retaining ring 6 is arranged at the front end of the filter base 1, a first card slot is provided on the inner wall of the front end of the filter base 1, and the filter retaining ring 6 fixes the filter lens 2 to the front end of the filter base 1 through the first card slot. Among them, a second card slot is also provided on the inner wall of the rear end of the filter base 1, and the frame retaining ring 7 restricts the filter clamp 3 in the filter base 1 through the second card slot.

[0034] In this embodiment, internal threads are provided on the inner wall of the second groove 310. The button 5 includes: a knob member 500 and a bolt 510. A second through hole is provided on the knob member 500. The knob member 500 can enter the first through hole 100, the second through hole is aligned with the second groove 310, and the bolt 510 penetrates through the second through hole and enters the second groove 310. Among them, rotating the knob member 500 can drive the bolt 510 to rotate. Preferably, the outer surface of the knob member 500 is set to an anti-slip structure. For example, the outer surface of the knob member 500 is rough to increase the friction between the operator and the knob member 500. The knob member 500 can not only adjust the connection between the new filter structure and the common lens, but also increase the portability of the new filter structure.

[0035] In this embodiment, a retaining ring is provided in the inner wall of the filter base 1. The retaining ring divides the filter base 1 into a front end and a rear end. One side of the filter lens 2 contacts the retaining ring, and the other side of the filter clamp 3 contacts the retaining ring.

[0036] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter structure, characterized in that: include: A filter base; A filter plate, the filter plate is arranged in the front end of the filter base; A filter hoop, which is arranged at the rear end of the filter base; At least one set of springs, wherein the springs are arranged between the filter base and the filter clamp; A button, the button passes through the filter base and is connected to the filter holder; A lens frame pressing ring, the lens frame pressing ring contacts and connects the filter clamp away from the filter plate, and the lens frame pressing ring is arranged in the rear end of the filter base.

2. The filter structure according to claim 1, characterized in that: A first through hole is arranged on the side of the filter base, a first groove and a second groove are arranged on the side of the filter clamp, one end of the spring contacts the inner wall of the rear end of the filter base, and the other end contacts the inner wall of the first groove, and the button can be screwed into the second groove through the first through hole.

3. The filter structure according to claim 1, characterized in that: The filter base is an annular structure, the filter plate is coaxially arranged in the front end of the filter base, the filter clamp is coaxially arranged in the rear end of the filter base, and the frame pressing ring is coaxially arranged in the rear end of the filter base.

4. The filter structure according to claim 1, characterized in that: Also includes: A filter pressing ring is arranged at the front end of the filter base, a first slot is arranged on the inner wall of the front end of the filter base, and the filter pressing ring fixes the filter sheet at the front end of the filter base through the first slot.

5. The filter structure according to claim 4, characterized in that: A second slot is also provided on the inner wall at the rear end of the filter base, and the frame pressing ring restricts the filter clamp in the filter base through the second slot.

6. The filter structure according to claim 2, characterized in that: An inner thread is arranged on the inner wall of the second groove.

7. The filter structure according to claim 6, characterized in that: The buttons include: a knob member, wherein a second through hole is provided on the knob member, the knob member can enter into the first through hole, and the second through hole is aligned with the second groove; a bolt, the bolt passing through the second through hole and entering the second groove; Wherein, rotating the knob can drive the bolt to rotate.

8. The filter structure according to claim 7, characterized in that: The outer surface of the knob is provided with an anti-slip structure.

9. The filter structure according to claim 1, characterized in that: A retaining ring is arranged in the inner wall of the filter base, and the retaining ring divides the filter base into a front end and a rear end. The filter sheet contacts one side of the retaining ring, and the filter hoop contacts the other side of the retaining ring.

10. A lens, characterized in that: The filter structure comprises the filter structure described in any one of claims 1 to 9.

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