Adapter ring

Abstract

We provide adapter rings used to swap camera lenses of different apertures. [Solution] The adapter ring includes a ring body 100, a pressing member 200, and a snap-fit ​​member 300. The pressing member and the snap-fit ​​member are provided on the ring body, and the snap-fit ​​member is linked to the pressing member. The snap-fit ​​member is provided with snap-fit ​​blocks for locking the lens. When the pressing member is subjected to a pressing action, the multiple snap-fit ​​blocks move closer to or further apart from each other. The pressing member and the snap-fit ​​member return to their original positions due to the action of the return member, and the multiple snap-fit ​​blocks work together to fix the adapter ring 10 to the lens. Because it can be attached to lenses of various sizes via multiple snap-fit ​​members with variable distances, the applicability to various scenarios is improved. In addition, the adapter ring can be attached and detached by the user simply by pressing the pressing member, improving the convenience of attaching and detaching the adapter ring.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of adapter rings, and in particular to adapter rings.

Background Art

[0002] An adapter ring is a type of adapter used to replace camera lenses with different apertures. Most of the currently commercially available adapter rings adopt a snap-fit design with a fixed mounting aperture, and one adapter ring cannot be used with lenses of different apertures. For example, an adapter ring for a 43mm aperture can only be mounted on a lens with a 43mm aperture, and an adapter ring for a 55mm aperture can only be mounted on a lens with a 55mm aperture.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The following is a summary of the subject matter detailed in this specification. This summary is not intended to limit the scope of the claims.

[0004] The objective of the present application is to provide an adapter ring applicable to lenses of various apertures in the embodiments of the present application in order to at least partially solve one of the technical problems existing in the related technologies.

Means for Solving the Problems

[0005] In the embodiments of the present application, the adapter ring includes a ring body, a pressing member provided on the ring body, and a plurality of snap-fit members provided on the ring body, interlocked with the pressing member, and provided with snap-fit blocks for locking the lens. When the pressing member is subjected to a pressing action, the multiple snap-fit ​​blocks move closer to or further apart from each other, and the pressing member and the snap-fit ​​member return to their original positions due to the action of the return member.

[0006] According to one embodiment of the present invention, the ring body is provided with a circular light-passing hole, and the portions of the pressing member and the snap-fit ​​member that protrude from the circular light-passing hole become circular light-passing openings.

[0007] According to one embodiment of the present invention, the ring body is provided with a notch, the pressing member is provided with a pressing portion, and the pressing portion extends from the notch.

[0008] According to one embodiment of the present invention, there are two pressing members, and the pressing portions of the two pressing members are arranged opposite each other.

[0009] According to one embodiment of the present invention, one end of the pressing member is interlocked with one snap-fit ​​member, and the other end of the pressing member is interlocked with another snap-fit ​​member.

[0010] According to one embodiment of the present invention, the pressing member is provided with a first guide groove, the snap-fit ​​member is provided with a first guide projection, the first guide projection is inserted into the first guide groove, and the first guide projection slides back and forth along the first guide groove.

[0011] According to one embodiment of the present invention, the snap-fit ​​block is provided with a screw groove that engages with a lens screw.

[0012] According to one embodiment of the present invention, a protruding enclosure rib is provided on the side of the snap-fit ​​member closest to the circular light-passing aperture, and the enclosure rib is used to block light.

[0013] According to one embodiment of the present invention, the ring body is provided with a housing chamber, the return member is provided inside the housing chamber, and the return member is provided on the outside of the pressing member.

[0014] According to one embodiment of the present invention, the return member is provided within the pressing portion. [Effects of the Invention]

[0015] The above solution has at least the following beneficial effects. When the user presses the pressing member, the pressing member receives a pressing action, causing the multiple snap-fit ​​blocks to move closer to or further apart from each other, at which point the adapter ring can be fitted onto the lens. When the user stops pressing the pressing member, the pressing member and snap-fit ​​members return to their original positions due to the action of the return member, and the multiple snap-fit ​​members work together to clamp the lens, thereby fixing the adapter ring to the lens. This adapter ring can be attached to lenses of various sizes via multiple snap-fit ​​members with variable distances, thus improving the applicability of scenarios. In addition, the adapter ring can be attached and detached simply by the user pressing the pressing member, thus improving the convenience of attaching and detaching the adapter ring. [Brief explanation of the drawing]

[0016] The drawings are for further understanding of the technical solution of the present application and constitute part of the specification. They are used together with the embodiments of the present application to interpret the technical solution of the present application, but do not limit the technical solution of the present application. [Figure 1] This is a structural diagram of an adapter ring according to one embodiment of the present invention. [Figure 2] This is a diagram showing the internal structure of an adapter ring according to one embodiment of the present invention. [Figure 3] This is a diagram showing the connection between a pressing member and a snap-fit ​​member according to one embodiment of the present invention. [Figure 4] This is a diagram showing the connections of an adapter ring, lens, and filter according to one embodiment of the present invention. [Figure 5] It is a cross-sectional view corresponding to the A-A position in FIG. 4. [Figure 6] It is a connection structure diagram of an adapter ring, a magnetic adsorption circular lens, and a screw circular lens according to another embodiment of the present application. [Figure 7] It is a cross-sectional view corresponding to the B-B position in FIG. 6. [Figure 8] It is an exploded view of an adapter ring, a magnetic adsorption circular lens, and a screw circular lens according to another embodiment of the present application. [Figure 9] It is an internal structure diagram of an adapter ring according to another embodiment of the present application. [Figure 10] It is another internal structure diagram of an adapter ring according to another embodiment of the present application. [Figure 11] It is a cross-sectional view of an adapter ring according to yet another embodiment of the present application. [Figure 12] It is a structure diagram of an adapter ring according to some other embodiments of the present application. [Figure 13] It is an exploded view of an adapter ring according to some other embodiments of the present application. [Figure 14] It is an internal structure diagram of an upper ring body in some other embodiments of the present application. [Figure 15] It is a schematic structural diagram of an upper ring body and a magnetic member in some other embodiments of the present application. [Figure 16] It is a schematic structural diagram of a snap-fit member in some other embodiments of the present application. [Figure 17] It is a schematic structural diagram of a pressing member in some other embodiments of the present application. [Figure 18] It is a connection diagram of a pressing member and a snap-fit member in some other embodiments of the present application. [Figure 19] It is a cross-sectional view of an adapter ring in some other embodiments of the present application. [Figure 20] It is a partially enlarged view of part C in FIG. 19.

Embodiments for Carrying Out the Invention

[0017] To provide a clearer understanding of the purpose, technical solutions, and advantages of this application, the application will be described in more detail below with reference to the drawings and examples. The specific examples described herein are for illustrative purposes only and are not intended to limit the application.

[0018] While the schematic diagram of the device shows the division of functional modules and the flowchart shows the logical sequence, in some cases the steps shown or described may be performed in a different order from the division of the device modules or the sequence in the flowchart. Terms such as "first," "second," etc., in the specification, claims, or the above drawings are used to distinguish similar subjects and are not required to describe a specific order or sequence.

[0019] The embodiments of this application will be further described below with reference to the drawings.

[0020] The embodiment of the present invention provides an adapter ring 10.

[0021] Referring to Figures 1 and 2, the adapter ring 10 includes a ring body 100, a pressing member 200, and a snap-fit ​​member 300.

[0022] The pressing member 200 is provided on the ring body 100, and there are multiple snap-fit ​​members 300, which are also provided on the ring body 100, and the snap-fit ​​members 300 are linked to the pressing member 200, and the snap-fit ​​members 300 are provided with snap-fit ​​blocks 310 for locking the lens 20.

[0023] When the pressing member 200 is subjected to a pressing action, the multiple snap-fit ​​blocks 310 move closer to or further apart from each other, and the pressing member 200 and the snap-fit ​​members 300 return to their original positions due to the action of the return member 400.

[0024] One understandable point is that, since the snap-fit ​​member 300 is linked to the pressing member 200, the return member 400 may be directly connected to the pressing member 200, that is, the force from the return member 400 acts directly on the pressing member 200. The return member 400 may also be directly connected to the snap-fit ​​member 300, that is, the force from the return member 400 acts directly on the snap-fit ​​member 300. In either case, the effect obtained is that the pressing member 200 and the snap-fit ​​member 300 are returned to their original positions by the action of the return member 400.

[0025] When the user presses the pressing member 200, the pressing member 200 is subjected to a pressing action, causing the snap-fit ​​blocks 310 of the different snap-fit ​​members 300 to move closer to or further apart from each other, at which point the adapter ring 10 can be fitted onto the lens 20. When the user stops pressing the pressing member 200, the pressing member 200 and the snap-fit ​​members 300 return to their original positions due to the action of the return member 400, and the multiple snap-fit ​​members 300 work together to sandwich the lens 20, thereby fixing the adapter ring 10 to the lens 20.

[0026] Referring specifically to Figures 4 and 5, in one embodiment, when the pressing member 200 is pressed, the pressing member 200 moves under the pressure, causing the multiple snap-fit ​​members 300 to move, and the snap-fit ​​blocks 310 of the multiple snap-fit ​​members 300 move closer to each other, that is, the distance between the multiple snap-fit ​​blocks 310 becomes smaller. At this time, it becomes possible to insert the multiple snap-fit ​​blocks 310 into the inner diameter side of the lens 20. When the pressing force on the pressing member 200 decreases and the force exerted by the return member 400 on the pressing member 200 becomes greater than the pressing force on the pressing member 200, the return member 400 causes the pressing member 200 and the snap-fit ​​member 300 to return to their original positions, and the snap-fit ​​blocks 310 of the multiple snap-fit ​​members 300 move apart from each other, that is, the distance between the multiple snap-fit ​​blocks 310 increases, so that the multiple snap-fit ​​blocks 310 can lock onto the inside of the lens 20, and the adapter ring 10 is fixed to the lens 20. Next, the filter 30 can be attached to the adapter ring 10. After the adapter ring 10 is attached to the lens 20, if it is necessary to remove the adapter ring 10 from the lens 20, the pressing member 200 is pressed, and the pressing member 200 moves under the pressure, causing the multiple snap-fit ​​members 300 to move, and the snap-fit ​​blocks 310 of the multiple snap-fit ​​members 300 move closer to each other, reducing the distance between the multiple snap-fit ​​blocks 310. At this time, the multiple snap-fit ​​blocks 310 no longer lock onto the inside of the lens 20, making it possible to remove the adapter ring 10 from the lens 20. When the pressing member 200 is released, the pressing member 200 and the snap-fit ​​members 300 return to their original positions due to the action of the return member 400.

[0027] In another embodiment, when the pressing member 200 is pressed, the pressing member 200 moves under the pressure, causing the multiple snap-fit ​​members 300 to move, and the snap-fit ​​blocks 310 of the multiple snap-fit ​​members 300 to move apart from each other, that is, the distance between the multiple snap-fit ​​blocks 310 increases. At this time, it becomes possible to insert the multiple snap-fit ​​blocks 310 into the outer diameter side of the lens 20. When the force of the pressing action received by the pressing member 200 decreases, and the force of the return member 400 on the pressing member 200 becomes greater than the force of the pressing action received by the pressing member 200, the pressing member 200 and the snap-fit ​​members 300 return to their original positions due to the action of the return member 400, and the snap-fit ​​blocks 310 of the multiple snap-fit ​​members 300 move closer to each other, that is, the distance between the multiple snap-fit ​​blocks 310 decreases, thereby allowing the multiple snap-fit ​​blocks 310 to lock onto the outside of the lens 20, and the adapter ring 10 is fixed to the lens 20. Next, the filter 30 can be attached to the adapter ring 10. After the adapter ring 10 is attached to the lens 20, if it is necessary to remove the adapter ring 10 from the lens 20, the pressing member 200 is pressed, and the pressing member 200 moves under the pressure, moving the multiple snap-fit ​​members 300, and the snap-fit ​​blocks 310 of the multiple snap-fit ​​members 300 move apart from each other, increasing the distance between the multiple snap-fit ​​blocks 310. At this point, the multiple snap-fit ​​blocks 310 no longer lock onto the outside of the lens 20, and the adapter ring 10 can be removed from the lens 20. When the pressing member 200 is released, the pressing member 200 and the snap-fit ​​members 300 return to their original positions due to the action of the return member 400.

[0028] The adapter ring 10 can be attached to lenses 20 of various sizes via multiple snap-fit ​​members 300 with adjustable distances, thus improving its applicability to different scenarios. Furthermore, the adapter ring 10 can be attached and detached simply by the user pressing the pressing member 200, thus improving the convenience of attaching and detaching the adapter ring 10.

[0029] The ring body 100 includes an upper ring body 103 and a lower ring body 104. When the upper ring body 103 and the lower ring body 104 are engaged, a chamber 105 is formed, and the pressing member 200, snap-fit ​​member 300, and return member 400 are housed within the chamber 105. The ring body 100 is provided with a notch 110, and the pressing member 200 is provided with a pressing portion 210, which extends from the notch 110.

[0030] Referring to Figures 1 and 3, the ring body 100 is provided with a circular light-passing hole 130, and the portions of the pressing member 200 and the snap-fit ​​member 300 that protrude from the circular light-passing hole 130 become circular light-passing openings 140. In this case, when attaching the filter 30 to the position corresponding to the circular light-passing hole 130 of the ring body 100, it is not necessary to attach it in a specific direction, and the angle of the filter 30 can also be adjusted arbitrarily. The light-passing characteristics of the circular light-passing hole 130 and the circular light-passing opening 140 can more reliably ensure the generation of moiré patterns.

[0031] Furthermore, the notch 110 is provided on the outer surface of the ring body 100, and the pressing portion 210 extends outward from the ring body 100. In this embodiment, the user presses the pressing member 200 with their finger, and then presses the pressing member 200 toward the inside of the ring body 100, causing the pressing member 200 to be pulled out of the notch 110 toward the chamber.

[0032] There are two pressing members 200, and the pressing portions 210 of the two pressing members 200 are positioned opposite each other. In this embodiment, the user presses the pressing portion 210 of one pressing member 200 with one finger (for example, the thumb) and the pressing portion 210 of the other pressing member 200 with another finger (for example, the index finger), thereby pressing the two pressing members 200 toward the inside of the ring body 100 and bringing the two pressing members 200 closer together.

[0033] Referring to Figure 3, one end of the pressing member 200 is interlocked with one snap-fit ​​member 300, and the other end of the pressing member 200 is interlocked with the other snap-fit ​​member 300. Specifically, there are two pressing members 200, one pressing member 200 and the other pressing member 200. There are two snap-fit ​​members 300, one snap-fit ​​member 300 and the other snap-fit ​​member 300. In this case, one end of one pressing member 200 is connected to one end of one snap-fit ​​member 300, the other end of one pressing member 200 is connected to one end of the other snap-fit ​​member 300, one end of the other pressing member 200 is connected to the other end of one snap-fit ​​member 300, and the other end of the other pressing member 200 is connected to the other end of the other snap-fit ​​member 300. The four members are connected to form a ring. As a result, the pressing member 200 and the snap-fit ​​member 300 can be linked together more reliably and stably.

[0034] When one pressing member 200 is pressed, it causes one snap-fit ​​member 300 to slide against the other snap-fit ​​member 300. When the other pressing member 200 is pressed, it causes one snap-fit ​​member 300 to slide against the other snap-fit ​​member 300. When both pressing members 200 are pressed simultaneously, they act together, pulling on both ends of one snap-fit ​​member 300 and both ends of the other snap-fit ​​member 300, causing one snap-fit ​​member 300 to slide against the other snap-fit ​​member 300.

[0035] The pressing member 200 is provided with a linear first guide groove 220. Of course, in other embodiments, the first guide groove 220 may be designed in other shapes, such as an arc shape, depending on the actual needs. The snap-fit ​​member 300 is provided with a protruding rod-shaped first guide projection 320. The first guide projection 320 is inserted into the first guide groove 220 and slides back and forth along the first guide groove 220, thereby enabling the movement of the snap-fit ​​member 300.

[0036] As described above, the pressing member 200 is provided with a first guide groove 220, and the snap-fit ​​member 300 is provided with a first guide projection 320. However, the present invention is not limited thereto, and for example, referring to Figures 14 and 15, in some other embodiments, the pressing member 200 is provided with a first guide projection 320, and the snap-fit ​​member 300 is provided with a first guide groove 220.

[0037] To improve stability, the sway of the snap-fit ​​member 300 during movement is reduced. Referring to Figures 13 to 15, in some embodiments, the ring body 100 is provided with a second guide projection 106, and the snap-fit ​​member 300 is provided with a second guide groove 107, the second guide projection 106 is inserted into the second guide groove 107 and slides back and forth along the second guide groove 107. The constraints imposed by the second guide projection 106 and the second guide groove 107 make the movement of the snap-fit ​​member 300 more stable. It should be understood that the first guide groove 220 and the second guide groove 107 are oriented in different directions. In exemplary embodiments, the second guide groove 107 extends along the radial direction of the ring body 100.

[0038] In the above, the ring body 100 is provided with a second guide projection 106 and the snap-fit ​​member 300 is provided with a second guide groove 107. However, the present invention is not limited thereto. For example, in some other embodiments, the ring body 100 is provided with a second guide groove 107 and the snap-fit ​​member 300 is provided with a second guide projection 106.

[0039] To improve stability, the shaking of the pressing member 200 during movement is reduced. Referring to Figures 14 and 17, in some embodiments, the ring body 100 has a third guide groove 108, and the pressing member 200 has a third guide projection 109, the third guide projection 109 is inserted into the third guide groove 108, and the third guide projection 109 reciprocates and slides along the third guide groove 108, and the movement of the pressing member 200 is more stable due to the constraints imposed by the third guide groove 108 and the third guide projection 109.

[0040] The above describes that the ring body 100 has a third guide groove 108 and the pressing member 200 has a third guide projection 109. However, the present invention is not limited thereto, and for example, in some other embodiments, the ring body 100 has a third guide projection 109 and the pressing member 200 has a third guide groove 108.

[0041] The snap-fit ​​block 310 is provided with a screw groove 311 that engages with the lens thread of the lens 20. The screw groove 311 is provided on the outward-facing side of the ring body 100 of the snap-fit ​​block 310, and when the snap-fit ​​block 310 is locked inside the lens 20, the screw groove 311 is fitted into the lens thread, thereby allowing the adapter ring 10 to be more stably fixed to the lens 20. In other words, the lens thread is a thread on the lens 20 for attaching the filter 30, and the lens thread is located inside the lens 20, so when the adapter ring 10 is not in use, the matching filter 30 can be attached directly to the lens 20 through the thread.

[0042] The ring body 100 is provided with a housing chamber 120, and the return member 400 is located inside the housing chamber 120. The return member 400 is a spring. When the user presses the pressing member 200, the pressing member 200 moves inward towards the ring body 100 due to the pressing action, pushing the return member 400 and causing the spring to contract. When the user stops pressing the pressing member 200, the pressing member 200 returns to its original position due to the elastic action of the return member 400.

[0043] In one embodiment, the housing chamber 120 for housing the spring is provided in the circumferential direction of the ring body 100. The spring is positioned in the circumferential direction of the ring body 100 within the housing chamber 120. When a user presses the pressing member 200, the pressing member 200 moves toward the inside of the ring body 100 in response to the pressing action, pushing the spring through an auxiliary member extending into the housing chamber 120. The spring moves along the circumferential direction of the ring body 100 and contracts. When the user stops pressing the pressing member 200, the pressing member 200 returns to its original position due to the elastic action of the spring.

[0044] Referring to Figures 9 and 10, in another embodiment, a housing chamber 120 for housing the spring is provided radially to the ring body 100. The spring is positioned radially to the ring body 100 within the housing chamber 120. The pressing member 200 is provided with a protruding rod 121 that contacts the spring. When a user presses the pressing member 200, the pressing member 200 moves toward the inside of the ring body 100 under the pressure, and the pressing member 200 pushes the spring via the protruding rod 121, causing the spring to move along the radial direction of the ring body 100 and contract. When the user stops pressing the pressing member 200, the pressing member 200 returns to its original position due to the elastic action of the spring.

[0045] Return members 400 are provided on both sides of the pressing member 200. Since the return members 400 on both sides apply force to both sides of the pressing member 200 simultaneously, the force received by the pressing member 200 becomes more uniform, and the return stability of the pressing member 200 is improved.

[0046] Referring to Figure 11, in yet another embodiment, the return member 400 is provided within the pressing portion 210, and a grab screw 410 is provided within the pressing portion 210, and the end of the spring is fitted into the grab screw 410, fixing the spring in place with the grab screw 410 and preventing the spring from shifting position. In this way, the stroke of the spring is increased, allowing for a stroke sufficient to achieve a wide range of diameters with the same bore diameter.

[0047] A protruding enclosure rib 301 is provided on the side of the snap-fit ​​member 300 closest to the circular light-transmitting aperture 140. The enclosure rib 301 acts as a light blocker, effectively improving the problem of light leakage.

[0048] In yet another embodiment, the ring body 100 is provided with a magnetic adsorption member 101. The magnetic adsorption member 101 is a magnet. If the filter 30 is provided with another magnet, the magnetic attraction between the magnet on the ring body 100 and the magnet on the filter 30 causes the filter 30 to be magnetically attracted to the adapter ring 10, thereby enabling the filter 30 to be quickly attached and detached.

[0049] Referring to Figures 6, 7, and 8, in another embodiment, the adapter ring can be fitted with circular lenses of various apertures, such as a 95mm aperture circular lens and an 82mm aperture circular lens. Referring to Figures 9 and 14, in some embodiments, the ring body 100 is provided with a plurality of magnetic adsorption members 101, the magnetic adsorption members 101 being magnets, and the plurality of magnets being arranged in a ring shape. The 95mm aperture magnetic adsorption circular lens 32 is attracted by the magnetic attraction action of the plurality of magnets.

[0050] The inner ring of the ring body 100 is provided with a screw 102, and an 82mm diameter screw-type circular lens 31 is attached via the screw 102 on the inner ring.

[0051] It should be understood that although Figures 7 and 8 show both the screw-type circular lens 31 and the magnetically adsorbed circular lens 32, in actual use, only one of the screw-type circular lens 31 or the magnetically adsorbed circular lens 32 can be fitted.

[0052] Referring to Figures 13, 19, and 20, in some embodiments, the ring body 100 is provided with two magnetic adsorption members 101: a first-circumference magnetic adsorption member 101(a) and a second-circumference magnetic adsorption member 101(b). Multiple magnets of the first-circumference magnetic adsorption member 101(a) are mounted in grooves 111 of the ring body 100 along the circumferential direction. Multiple magnets of the second-circumference magnetic adsorption member 101(b) are sequentially mounted within an annular magnetic press ring 112, which has an annular groove 113 for accommodating the multiple magnets of the second-circumference magnetic adsorption member 101(b), and the magnetic press ring 112 is screw-connected to a screw 102. By simultaneously arranging the first-circumference magnetic adsorption member 101(a) and the second-circumference magnetic adsorption member 101(b), the magnetic force can be increased and the connection can be made more stable.

[0053] Referring to Figures 12 and 18, in some embodiments, both the pressing member 200 and the snap-fit ​​member 300 are provided with a snap-fit ​​block 310 for locking the lens 20.

[0054] The above describes a more preferred embodiment of the present application, but the present application is not limited to the examples. A person skilled in the art can make various equivalent modifications or substitutions, as long as they do not contradict the spirit of the present application. These equivalent modifications or substitutions are all within the scope limited by the claims of the present application.

Claims

1. It is an adapter ring, The ring body and The pressing member provided on the ring body, The ring body includes a plurality of snap-fit ​​members provided on it, which are interlocking with the pressing member and are equipped with snap-fit ​​blocks for locking the lens, An adapter ring characterized in that when the pressing member is subjected to a pressing action, the plurality of snap-fit ​​blocks become able to move closer to or further apart from each other, and the pressing member and the snap-fit ​​members become able to return to their original positions due to the action of the return member.

2. The adapter ring according to claim 1, characterized in that the ring body is provided with a circular light-passing hole, and the portions of the pressing member and the snap-fit ​​member that protrude from the circular light-passing hole become circular light-passing openings.

3. The adapter ring according to claim 1, characterized in that the ring body is provided with a notch, the pressing member is provided with a pressing portion, the pressing portion extends from the notch, there are two pressing members, and the pressing portions of the two pressing members are arranged facing each other.

4. The adapter ring according to claim 1, characterized in that one end of the pressing member is interlocked with one snap-fit ​​member, and the other end of the pressing member is interlocked with another snap-fit ​​member.

5. The adapter ring according to claim 1, wherein one of the pressing member and the snap-fit ​​member is provided with a first guide groove, and the other is provided with a first guide projection, the first guide projection is inserted into the first guide groove, and the first guide projection is reciprocally slidable along the first guide groove.

6. Of the ring body and the snap-fit ​​member, one has a second guide projection, and the other has a second guide groove of the snap-fit ​​member, the second guide projection is inserted into the second guide groove, and the second guide projection is capable of reciprocating sliding along the second guide groove. The adapter ring according to claim 1 or 5, characterized in that the ring body has a third guide groove, the pressing member has a third guide projection, the third guide projection is inserted into the third guide groove, and the third guide projection is reciprocally slidable along the third guide groove.

7. The adapter ring according to claim 1, characterized in that the snap-fit ​​block is provided with a screw groove for engaging with a lens screw.

8. The adapter ring according to claim 2, characterized in that a protruding enclosure rib is provided on the side of the snap-fit ​​member closest to the circular light-passing aperture, and the enclosure rib is used to block light.

9. The adapter ring according to claim 1, characterized in that the ring body is provided with a magnetic adsorption member, and the magnetic adsorption member is configured to be magnetically adsorbed to the magnetic member of the filter.

10. The adapter ring according to claim 1 or 7, characterized in that the pressing member is provided with the snap-fit ​​block for locking the lens.

Images