A circular polarizing filter assembly and lens assembly

Abstract

The application provides a circular polarization filter assembly and a lens assembly; the circular polarization filter assembly comprises a frame, a first lens, a second lens, a lens rotating part and a locking part; the first lens and the second lens are arranged in the frame; the lens rotating part is arranged in the frame, the first lens is arranged on the lens rotating part, and the lens rotating part drives the first lens to rotate relative to the second lens; the locking part is arranged on the frame, and the locking part can move towards the lens rotating part and move away from the lens rotating part; after the polarization angle is adjusted, the lens rotating part is abutted by the locking part, the lens rotating part is locked by the locking part, and the first lens is prevented from rotating relative to the second lens to affect the adjusted polarization angle, so that the circular polarization filter assembly has the advantage of convenient use.

Description

Technical Field

[0001] This application relates to the field of filters, and more particularly to a circular polarizing filter assembly and a lens assembly. Background Technology

[0002] A circular polarizing filter consists of two lenses. The polarization angle is adjusted by rotating the front lens. Some circular polarizing filters rely solely on the friction between the frame and the rotating part of the lens to restrict its rotation. This results in high resistance when rotating the rotating part and a risk of slippage even when rotation is not needed, making them inconvenient to use. Utility Model Content

[0003] The following is an overview of the topics described in detail in this article.

[0004] The purpose of this application is to at least partially solve one of the technical problems existing in the related art. The embodiments of this application provide a circular polarizing filter assembly and a lens assembly.

[0005] An embodiment of the first aspect of this application provides a circular polarizing filter assembly, comprising:

[0006] A picture frame, wherein a first lens and a second lens are disposed within the picture frame;

[0007] A lens rotating component is provided, which is placed inside the lens frame. The first lens is placed on the lens rotating component, and the lens rotating component is used to drive the first lens to rotate relative to the second lens.

[0008] A locking member is disposed on the lens frame. The locking member can move towards the lens rotating member and away from the lens rotating member. When the locking member abuts against the lens rotating member, the locking member locks the lens rotating member.

[0009] According to certain embodiments of the first aspect of this application, the locking member includes a nut, a silicone seat, and silicone, the nut being rotatably connected to the lens frame, the end of the silicone seat away from the lens rotating member being connected to the nut, and the end of the silicone seat near the lens rotating member being connected to the silicone.

[0010] According to certain embodiments of the first aspect of this application, the nut is provided with a slot, the slot wall is provided with a first thread, the end of the silicone seat away from the lens rotating member is provided with a second thread that mates with the first thread, and the end of the silicone seat away from the lens rotating member is inserted into the slot.

[0011] According to certain embodiments of the first aspect of this application, the frame is provided with a pressure ring that presses down on the first lens.

[0012] According to certain embodiments of the first aspect of this application, the pressure ring is provided with a first magnetic attraction element.

[0013] According to certain embodiments of the first aspect of this application, the frame is provided with a second magnetic element.

[0014] According to certain embodiments of the first aspect of this application, the frame is provided with an external connector for connecting to external equipment.

[0015] According to certain embodiments of the first aspect of this application, the outer wall of the external connector is provided with a third thread.

[0016] According to certain embodiments of the first aspect of this application, a limiting groove is provided on the side of the frame, and the lens rotating member is provided with a lever, the lever extending from the limiting groove to outside the frame.

[0017] According to a second aspect of this application, a lens assembly includes a lens and a circular polarizing filter assembly as described in the first aspect of this application, the circular polarizing filter assembly being mounted on the lens.

[0018] The above solution has at least the following beneficial effects: When it is necessary to adjust the polarization angle of the circular polarizing filter assembly, the locking member is moved away from the lens rotating member, so that the locking member no longer presses against the lens rotating member. The locking member releases the lens rotating member, and then the lens rotating member is rotated so that the first lens on the lens rotating member rotates relative to the second lens, adjusting the polarization angle to a suitable angle. Then, the locking member is moved closer to the lens rotating member so that the locking member presses against the lens rotating member, locking the lens rotating member. At this time, the lens rotating member cannot rotate, and the first lens cannot rotate relative to the second lens. The locking member serves to release and fix the lens rotating member, which has the advantage of being easy to use. Attached Figure Description

[0019] The accompanying drawings are used to provide a further understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0020] Figure 1 This is a structural diagram of a circular polarizing filter assembly;

[0021] Figure 2 This is an exploded view of the circular polarizing filter assembly.

[0022] Figure 3 It is a structural diagram of the picture frame;

[0023] Figure 4 This is an exploded view of the locking mechanism.

[0024] Figure 5 This is a cross-sectional view of a magnetically connected circular polarizing filter assembly;

[0025] Figure 6 This is a cross-sectional view of a circular polarizing filter assembly with threaded connections;

[0026] Figure 7 This is a structural diagram of the lens assembly. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0028] It should be noted that although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first," "second," etc., in the specification, claims, or the aforementioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0029] The embodiments of this application will be further described below with reference to the accompanying drawings.

[0030] Embodiments of this application provide a circular polarizing filter assembly.

[0031] Reference Figure 1 and Figure 2 A circular polarizing filter assembly includes: a frame 100, a first lens 310, a second lens 320, a lens rotating component 200, and a locking component 400.

[0032] The frame 100 contains a first lens 310 and a second lens 320. A lens rotating member 200 is placed inside the frame 100, and the first lens 310 is placed on the lens rotating member 200. The lens rotating member 200 is used to drive the first lens 310 to rotate relative to the second lens 320. A locking member 400 is provided on the frame 100. The locking member 400 can move towards the lens rotating member 200 and away from the lens rotating member 200. When the locking member 400 abuts against the lens rotating member 200, the locking member 400 locks the lens rotating member 200.

[0033] In this embodiment, when it is necessary to adjust the polarization angle of the circular polarizing filter assembly, the locking member 400 is moved away from the lens rotating member 200, so that the locking member 400 no longer abuts against the lens rotating member 200, and the locking member 400 releases the lens rotating member 200. Then, the lens rotating member 200 is rotated, so that the first lens 310 on the lens rotating member 200 rotates relative to the second lens 320, and the polarization angle is adjusted to a suitable angle. Then, the locking member 400 is moved closer to the lens rotating member 200, so that the locking member 400 abuts against the lens rotating member 200, and the locking member 400 locks the lens rotating member 200. At this time, the lens rotating member 200 cannot rotate, and the first lens 310 cannot rotate relative to the second lens 320. The locking member 400 serves to release and fix the lens rotating member 200, which has the advantage of being easy to use.

[0034] Reference Figure 4 The locking component 400 includes a nut 410, a silicone seat 420, and a silicone 430. The nut 410 is rotatably connected to the lens frame 100. The end of the silicone seat 420 away from the lens rotating component 200 is connected to the nut 410, and the end of the silicone seat 420 close to the lens rotating component 200 is connected to the silicone 430.

[0035] A channel 120 is provided on the side of the frame 100, and a nut 410, a silicone seat 420, and silicone 430 are disposed in the channel 120. A protrusion is provided on the outer side of the nut 410, and an annular groove is provided on the wall of the channel 120. The protrusion of the nut 410 is inserted into the annular groove, allowing the nut 410 to rotate relative to the frame 100. The top of the nut 410 protrudes outside the channel 120.

[0036] Rotating the nut 410 causes the silicone 430 to move towards the lens rotating part 200 and away from the lens rotating part 200 through the action of the silicone seat 420.

[0037] The nut 410 is provided with a slot 411, and the slot wall of the slot 411 is provided with a first thread. The end of the silicone seat 420 away from the lens rotating part 200 is provided with a second thread that mates with the first thread. The end of the silicone seat 420 away from the lens rotating part 200 is inserted into the slot 411.

[0038] The first thread and the second thread are oriented towards the lens rotating part 200 and away from the lens rotating part 200, respectively.

[0039] Rotate the nut 410. The nut 410 rotates within the limited range of the annular groove. At the same time, with the cooperation of the first thread and the second thread, the silicone seat 420 moves relative to the nut 410 along the thread direction and also moves relative to the lens rotating member 200, so that the silicone 430 of the silicone seat 420 moves towards the lens rotating member 200 and away from the lens rotating member 200.

[0040] One end of the lens-pressing rotating component 200 is provided with silicone 430 for cushioning, to prevent the silicone seat 420 from rotating too deeply and easily damaging the lens. Of course, in other embodiments, other types of soft cushioning materials can also be used.

[0041] The frame 100 is provided with a pressure ring 500, which presses down on the first lens 310. By pressing down on the first lens 310, the pressure ring 500 prevents the first lens 310 from detaching from the frame 100, thus protecting the lens.

[0042] Reference Figure 5 The retaining ring 500 is equipped with a first magnetic 510. The lens frame 100 is equipped with a second magnetic 520. This circular polarizing filter assembly is magnetically connected to the lens or other external equipment (such as an internal ring, adapter ring, circular lens, etc.) through the action of the first magnetic 510 and the second magnetic 520. The magnetic connection makes assembly and disassembly more convenient.

[0043] The frame 100 is provided with an external connector 140 for connecting to external devices. In some embodiments, a second magnetic member 520 may be disposed within the external connector 140; of course, in other embodiments, the second magnetic member 520 may also be disposed at other locations on the frame 100.

[0044] Reference Figure 6 The outer wall of the external connector 140 is provided with a third thread. It is threaded to a lens or other external equipment via the third thread.

[0045] Reference Figure 3 The frame 100 has a limiting groove 110 on its side, and the lens rotating component 200 is equipped with a lever 210, which extends from the limiting groove 110 to the outside of the frame 100. By moving the lever 210, the lens rotating component 200 can be rotated, causing the first lens 310 on the lens rotating component 200 to rotate relative to the second lens 320, thereby adjusting the polarization angle. The limiting groove 110 restricts the position of the lever 210, thereby restricting the angle of rotation of the lens rotating component 200, and also restricting the angle of rotation of the first lens 310 relative to the second lens 320. Under the restriction of the limiting groove 110, adjustment from 1.5 to 8 levels can be achieved within this distance.

[0046] Reference Figure 7 An embodiment of this application provides a lens assembly, including a lens and a circular polarizing filter assembly as described above, the circular polarizing filter assembly being mounted on the lens 10.

[0047] This circular polarizing filter assembly adjusts the polarization direction of light. When shooting with this lens assembly, it can eliminate reflected light from non-metallic surfaces (such as water and glass), enhance the color saturation of the sky and scenery, and reduce the impact of atmospheric haze on landscape photography without changing the overall color balance of the image.

[0048] When it is necessary to adjust the polarization angle of the circular polarizing filter assembly, the locking member 400 is moved away from the lens rotating member 200, so that the locking member 400 is no longer pressed against the lens rotating member 200. The locking member 400 releases the lens rotating member 200, and then the lens rotating member 200 is rotated, so that the first lens 310 on the lens rotating member 200 rotates relative to the second lens 320, adjusting the polarization angle to the appropriate angle. Then, the locking member 400 is moved closer to the lens rotating member 200, so that the locking member 400 presses against the lens rotating member 200, locking the lens rotating member 200. At this time, the lens rotating member 200 cannot rotate, and the first lens 310 cannot rotate relative to the second lens 320. The locking member 400 serves to release and fix the lens rotating member 200, which has the advantage of being easy to use.

[0049] The above is a detailed description of the preferred embodiments of this application, but this application is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this application, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A circular polarizing filter assembly, characterized in that, include: A picture frame, wherein a first lens and a second lens are disposed within the picture frame; A lens rotating component is provided, which is placed inside the lens frame. The first lens is placed on the lens rotating component, and the lens rotating component is used to drive the first lens to rotate relative to the second lens. A locking member is disposed on the lens frame. The locking member can move towards the lens rotating member and away from the lens rotating member. When the locking member abuts against the lens rotating member, the locking member locks the lens rotating member.

2. The circular polarizing filter assembly according to claim 1, characterized in that, The locking component includes a nut, a silicone seat, and silicone. The nut is rotatably connected to the lens frame. The end of the silicone seat away from the lens rotating component is connected to the nut, and the end of the silicone seat close to the lens rotating component is connected to the silicone.

3. The circular polarizing filter assembly according to claim 2, characterized in that, The nut is provided with a slot, the slot wall is provided with a first thread, the end of the silicone seat away from the lens rotating part is provided with a second thread that mates with the first thread, and the end of the silicone seat away from the lens rotating part is inserted into the slot.

4. The circular polarizing filter assembly according to claim 1, characterized in that, The frame is provided with a pressure ring, which presses down on the first lens.

5. The circular polarizing filter assembly according to claim 4, characterized in that, The pressure ring is provided with a first magnetic attraction element.

6. The circular polarizing filter assembly according to claim 5, characterized in that, The frame is equipped with a second magnetic closure.

7. The circular polarizing filter assembly according to claim 1, characterized in that, The frame is provided with external connectors for connecting to external equipment.

8. The circular polarizing filter assembly according to claim 7, characterized in that, The outer wall of the external connector is provided with a third thread.

9. The circular polarizing filter assembly according to claim 1, characterized in that, The side of the frame has a limiting groove, and the lens rotating component is provided with a lever that extends from the limiting groove to the outside of the frame.

10. A lens assembly, characterized in that, It includes a lens and a circular polarizing filter assembly as described in any one of claims 1 to 9, the circular polarizing filter assembly being mounted on the lens.

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