A lens holder and a lens holder assembly

Abstract

The present invention discloses a lens support and a lens support assembly. The lens support comprises a first outer ring, a first fixed ring and a first inner ring which are coaxially arranged; the outer side surface of the first fixed ring is provided with a first outer ring groove, and the inner side surface of the first fixed ring is provided with a first inner ring groove; the first outer ring is arranged in the first outer ring groove and can rotate in the first outer ring groove, and the first inner ring is arranged in the first inner ring groove and can rotate in the first inner ring groove; a magnet is arranged on the first outer ring, and the first inner ring can be adsorbed by the magnet and linked with the first outer ring; a lens is fixed on the first inner ring. The present invention can effectively reduce the thickness of the lens support.

Description

Technical Field

[0001] The invention relates to the technical field of photographic equipment, in particular to a lens bracket and a lens bracket assembly. Background Art

[0002] The lens holder is a special structure for supporting and fixing the lens. It is an important component of the camera device and is very common in photographic equipment. In order to realize the rotation of the lens, the lens holder in the prior art adopts a gear drive method, that is, the lens frame is provided with a latch gear, and the gear meshes with the frame. When the gear rotates, the gear drives the frame to rotate, and the frame can drive the lens to rotate. This driving method has a large thickness of the entire lens holder due to the need to fix the gear. Summary of the invention

[0003] The present invention provides a lens bracket and a lens bracket assembly, which can effectively reduce the thickness of the lens bracket.

[0004] According to a first aspect of the present invention, the present invention provides a lens bracket, comprising a coaxially arranged first outer ring, a first fixed ring and a first inner ring; the outer side surface of the first fixed ring is provided with a first outer ring groove, and the inner side surface of the first fixed ring is provided with a first inner ring groove; the first outer ring is arranged in the first outer ring groove and can rotate in the first outer ring groove, and the first inner ring is arranged in the first inner ring groove and can rotate in the first inner ring groove; a magnet is arranged on the first outer ring, and the first inner ring can be adsorbed by the magnet and linked with the first outer ring; a lens is fixed on the first inner ring.

[0005] Preferably, the inner side surface of the first outer ring is provided with a groove, and the magnet is arranged in the groove.

[0006] Preferably, a plurality of the grooves are provided, and the plurality of grooves are evenly distributed on the inner side surface of the first outer ring, and the magnet is provided in each groove.

[0007] Preferably, the lens is fixed in a lens frame, and a plurality of magnetic parts are provided on the lens frame, and the magnetic parts are adsorbed and fixed on the first inner ring.

[0008] Preferably, the outer side surface of the first outer ring is provided with anti-slip grooves.

[0009] Preferably, the lens comprises a circular gradient lens or a polarizing lens.

[0010] Preferably, the first inner ring is made of a metal material that can be attracted by the magnet.

[0011] Preferably, the lens holder further includes a second outer ring, a second fixing ring, and a second inner ring that are coaxially arranged; a second outer ring groove is provided on the outer side surface of the second fixing ring, and a second inner ring groove is provided on the inner side surface of the second fixing ring; the second outer ring is arranged in the second outer ring groove and can rotate in the second outer ring groove, and the second inner ring is arranged in the second inner ring groove and can rotate in the second inner ring groove; a magnetic body is provided on the second outer ring, and the second inner ring can be adsorbed by the magnetic body and linked with the second outer ring; a lens is fixed on the second inner ring; the second fixing ring is detachably fixed on the surface of the first fixing ring.

[0012] According to the second aspect of the present invention, the present invention provides a lens holder assembly, including a filter holder, an adapter ring, and the above-mentioned lens holder, the lens holder is detachably fixed on the adapter ring, and the filter holder is detachably fixed on the lens holder.

[0013] Preferably, the filter holder is provided with a radially elastically telescopic clamping member, the upper surface of the first fixing ring is provided with an upper connecting ring, and the inner side surface of the upper connecting ring is provided with a third inner ring groove, and the clamping member is clamped in the third inner ring groove and can rotate in the third inner ring groove.

[0014] The present invention has the following technical effects: The present invention uses a magnet to adsorb the first inner ring, so that the first inner ring and the first outer ring are linked. When the first outer ring is rotated, the first inner ring will also rotate accordingly, thereby driving the lens to rotate. This driving structure does not need to consider the fixed structure of the gear, and can effectively reduce the thickness of the lens holder.

[0015] At the same time, this kind of lens holder has stronger compatibility and is easy to be combined with other holders to form a multi-lens structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a lens holder according to an embodiment of the present invention;

[0017] Figure 2 is an exploded schematic diagram of a lens holder according to an embodiment of the present invention;

[0018] Figure 3 is a cross-sectional schematic diagram of a lens holder according to an embodiment of the present invention;

[0019] Figure 4 is a cross-sectional schematic diagram of a first fixing ring according to an embodiment of the present invention;

[0020] Figure 5 is a cross-sectional schematic diagram of a lens holder according to another embodiment of the present invention;

[0021] Figure 6 is an exploded schematic diagram of a lens holder assembly according to an embodiment of the present invention;

[0022] Figure 7 is Figure 6 exploded view of the lens holder assembly shown from another perspective;

[0023] Figure 8 is a cross-sectional view of a lens holder assembly according to an embodiment of the present invention;

[0024] Figure 9 is a partial cross-sectional view of a lens holder assembly according to an embodiment of the present invention.

[0025] Among them, the reference numerals are: anti-slip pattern 10, first outer ring 11, second outer ring 12, groove 13, magnet 14, magnetic body 15, lens holder 100, upper connecting ring 101, lower connecting ring 102, first fixing ring 21, first outer ring groove 211, first inner ring groove 212, first ring plate 213, second ring plate 214, connecting cylinder 215, chuck 216, card slot 217, second fixing ring 22, first inner ring 31, second inner ring 32, first lens frame 41, second lens frame 42, third lens frame 43, fourth lens frame 44, first lens 51, second lens 52, third lens 53, fourth lens 54, filter holder 6, card member 61, fixing seat 62, adapter ring 7, first card seat 71, second card seat 72, adjusting screw 73, limiting plate 74, limiting slot 75, connecting ring 76. Specific embodiments

[0026] The present invention will be further described in detail below with reference to the accompanying drawings through specific embodiments.

[0027] An embodiment of the present invention provides a lens holder, such as Figures 1-3As shown in the figure, it includes a first outer ring 11, a first fixing ring 21 and a first inner ring 31. The first outer ring 11, the first fixing ring 21 and the first inner ring 31 are coaxially arranged, and the first outer ring 11, the first fixing ring 21 and the first inner ring 31 all have a certain thickness. The first outer ring 11, the first fixing ring 21 and the first inner ring 31 each include an outer side surface and an inner side surface, and the outer side surfaces and inner side surfaces of the three are all toroidal. A first outer ring groove 211 is provided on the outer side surface of the first fixing ring 21. The first outer ring groove 211 can surround the outer side surface of the first fixing ring 21 for one week. A first inner ring groove 212 is provided on the inner side surface of the first fixing ring 21. The first inner ring groove 212 can surround the inner side surface of the first fixing ring 21 for one week, and the first outer ring groove 211 and the first inner ring groove 212 are both coaxially arranged with the first fixing ring 21. There is a preset distance between the first outer ring groove 211 and the first inner ring groove 212. The inner diameter of the first outer ring 11 is smaller than the outer diameter of the first fixing ring 21. The first outer ring 11 is arranged in the first outer ring groove 211 and can rotate in the first outer ring groove 211. The outer diameter of the first inner ring 31 is larger than the inner diameter of the first fixing ring 21. The first inner ring 31 is arranged in the first inner ring groove 212 and can rotate in the first inner ring groove 212. A magnet 14 is provided on the first outer ring 11. The first inner ring 31 can be adsorbed by the magnet 14 and is linked with the first outer ring 11. At the same time, a lens is fixed on the first inner ring 31. When the user rotates the first outer ring 11, due to the adsorption force of the magnet 14, the first inner ring 31 will also rotate accordingly, thereby driving the lens to rotate.

[0028] In one embodiment, the entire first inner ring 31 is made of a material that can be adsorbed by the magnet 14, such as metal materials like iron, cobalt, nickel, etc. In this way, the first inner ring 31 can be adsorbed by the magnet 14 at any angle set in the first inner ring groove 212. In another embodiment, the first inner ring 31 cannot be adsorbed by the magnet 14, but an intermediate member that can be adsorbed by the magnet 14 is fixed on the first inner ring 31. The intermediate member can be a metal body that can be adsorbed by the magnet 14 or a magnetic material that is magnetically attracted to the magnet 14. As long as the intermediate member and the magnet 14 are located in the same radial direction, the magnet 14 can still adsorb the first inner ring 31.

[0029] In one embodiment, a groove 13 is provided on the inner side surface of the first outer ring 11, and the magnet 14 is arranged in the groove 13. In this way, the magnet 14 does not occupy the space inside the first outer ring 11, enabling the first outer ring 11 to rotate smoothly in the first outer ring groove 211.

[0030] In one embodiment, multiple grooves 13 can be provided, and the multiple grooves 13 are evenly distributed on the inner side surface of the first outer ring 11. A magnet 14 is arranged in each groove 13, and the magnets 14 are evenly distributed on the first outer ring 11. Thus, the adsorption force on the first inner ring 31 is more uniform, enabling the first inner ring 31 to remain stable during rotation.

[0031] In one embodiment, the lens is fixed in the frame. A plurality of magnetic members are provided on the frame, and the magnetic members are adsorbed and fixed on the first inner ring 31, specifically, they can be adsorbed and fixed on the upper surface or the lower surface of the first inner ring 31, so that the lens can be fixed on the first inner ring 31. The lens may include a circular progressive lens or a polarizing lens, and may also include other filters.

[0032] Such as Figure 2 and Figure 3 As shown, two lenses may be provided, namely a first lens 51 and a second lens 52. Correspondingly, the first lens 51 is fixed in the first frame 41, and the second lens 52 is fixed in the second frame 42. The first frame 41 is adsorbed and fixed on the upper surface of the first inner ring 31, and the second frame 42 is adsorbed and fixed on the lower surface of the first inner ring 31.

[0033] In one embodiment, anti-slip patterns 10 are provided on the outer side surface of the first outer ring 11 to facilitate the user to rotate the first outer ring 11.

[0034] Considering how to dispose the first outer ring 11 in the first outer ring groove 211 and how to dispose the first inner ring 31 in the first inner ring groove 212, the structure of the first fixing ring 21 will be specifically described. In one embodiment, the first fixing ring 21 can be integrally formed, and the inner walls of the first outer ring groove 211 and the first inner ring groove 212 are arranged to be elastically deformable. Utilizing the characteristics of elastic deformation, the first outer ring 11 can be snapped into the first outer ring groove 211, and the first inner ring 31 can also be snapped into the first inner ring groove 212.

[0035] In another embodiment, the first fixing ring 21 has a split structure. Such as Figure 3 and 4 As shown, it includes a first ring plate 213, a second ring plate 214 and a connecting cylinder 215 arranged coaxially. The connecting cylinder 215 is disposed on the lower surface of the first ring plate 213 and extends axially downward along the first ring plate 213. The first ring plate 213 has a part located inside the connecting cylinder 215 and also has a part located outside the connecting cylinder 215. The second ring plate 214 is detachably connected to the lower end of the connecting cylinder 215. In this way, the first outer ring 11 can be sleeved on the connecting cylinder 215, the first inner ring 31 can be disposed inside the connecting cylinder 215, and then the connecting cylinder 215 is connected to the second ring plate 214, and the structure of the first fixing ring 21 as shown in Figure 3 can be formed.

[0036] In one embodiment, the connecting cylinder 215 can be located at the middle position between the inner side surface and the outer side surface of the first ring plate 213, so that the cross-sectional shapes of the connecting cylinder 215 and the first ring plate 213 can be in a T shape.

[0037] In one embodiment, a specific structure is provided for detachably connecting the second ring plate 214 to the lower end of the connecting tube 215. The inner side surface of the lower end of the connecting tube 215 protrudes radially inward, and the outer side surface of the lower end of the connecting tube 215 protrudes radially outward to form a clamping head 216. A clamping groove 217 is provided on the upper surface of the second ring plate 214, and the clamping groove 217 can surround the second ring plate 214, and the clamping head 216 can be detachably clamped in the clamping groove 217.

[0038] The embodiment of the present invention also provides a new lens holder, which includes the lens holders of the above embodiments, and at the same time, Figure 5 The lens holder of the present embodiment further comprises a second outer ring 12, a second fixing ring 22 and a second inner ring 32, the second outer ring 12, the second fixing ring 22 and the second inner ring 32 are coaxially arranged, and the second outer ring 12, the second fixing ring 22 and the second inner ring 32 all have a certain thickness, the second outer ring 12, the second fixing ring 22 and the second inner ring 32 all comprise an outer side surface and an inner side surface, and the outer side surfaces and the inner side surfaces of the three are all in the shape of a ring surface. A second outer ring groove is arranged on the outer side surface of the second fixing ring 22, and the second outer ring groove can surround the outer side surface of the second fixing ring 22 for one circle, and a second inner ring groove is arranged on the inner side surface of the second fixing ring 22, and the second outer ring groove and the second inner ring groove are both coaxially arranged with the second fixing ring 22, and the second outer ring groove and the second inner ring groove are spaced by a preset distance. The inner diameter of the second outer ring 12 is smaller than the outer diameter of the second fixing ring 22, and the second outer ring 12 is arranged in the second outer ring groove and can rotate in the second outer ring groove. The outer diameter of the second inner ring 32 is larger than the inner diameter of the second fixed ring 22. The second inner ring 32 is arranged in the second inner ring groove and can rotate in the second inner ring groove. A magnetic body is arranged on the second outer ring 12. The second inner ring 32 can be adsorbed by the magnetic body and linked with the second outer ring 12. At the same time, a lens is fixed on the second inner ring 32. When the user rotates the second outer ring 12, due to the adsorption force of the magnetic body, the second inner ring 32 will also rotate, thereby driving the lens to rotate. At the same time, the second fixed ring 22 is detachably fixed to the surface of the first fixed ring 21. In this way, it is equivalent to combining the two lens holders of the above-mentioned embodiment, and the lens can be expanded according to actual needs, which greatly increases the compatibility of the lens combination, and the combination of multiple lens holders can further expand the advantage of the small thickness of the lens holder.

[0039] In one embodiment, if Figure 5 As shown, an upper connecting ring 101 is provided on the upper surface of the first fixing ring 21, and a lower connecting ring 102 is provided on the lower surface of the second fixing ring 22. The outer side wall of the upper connecting ring 101 is provided with an external thread, and the inner side surface of the lower connecting ring 102 is provided with an internal thread. The upper connecting ring 101 and the lower connecting ring 102 are threadedly connected, so that the second fixing ring 22 is detachably fixed to the surface of the first fixing ring 21.

[0040] In one embodiment, the entire second inner ring 32 is made of a material that can be adsorbed by a magnetic body, such as metal materials like iron, cobalt, nickel, etc. In this way, the second inner ring 32 can be adsorbed by the magnetic body at any angle when it is disposed in the second inner ring groove. In another embodiment, the second inner ring 32 cannot be adsorbed by the magnetic body, but an intermediate member that can be adsorbed by the magnetic body is fixed on the second inner ring 32. The intermediate member can be a metal body that can be adsorbed by the magnetic body or a magnetic material that magnetically attracts the magnetic body. As long as the intermediate member and the magnetic body are in the same radial direction, the magnetic body can still adsorb the second inner ring 32.

[0041] In one embodiment, a placement groove is provided on the inner side surface of the second outer ring 12, and the magnetic body is disposed in the placement groove. In this way, the magnetic body does not occupy the space inside the second outer ring 12, enabling the second outer ring 12 to rotate smoothly in the second outer ring groove.

[0042] In one embodiment, multiple placement grooves can be provided, and the multiple placement grooves are evenly distributed on the inner side surface of the second outer ring 12. A magnetic body is disposed in each placement groove, and the magnetic bodies are evenly distributed on the second outer ring 12. Thus, the adsorption force on the second inner ring 32 is more uniform, keeping the second inner ring 32 stable during rotation.

[0043] In one embodiment, the lens is fixed in the frame, and multiple magnetic members are provided on the frame. The magnetic members are adsorbed and fixed on the second inner ring 32, specifically, they can be adsorbed and fixed on the upper surface or the lower surface of the second inner ring 32. In this way, the lens can be fixed on the second inner ring 32. The lens can include a circular progressive lens or a polarizing lens, and can also include other filters.

[0044] As Figure 5 shown, two lenses can be provided on the second inner ring 32, namely the third lens 53 and the fourth lens 54. Correspondingly, the third lens 53 is fixed in the third frame 43, and the fourth lens 54 is fixed in the fourth frame 44. The third frame 43 is adsorbed and fixed on the upper surface of the second inner ring 32, and the fourth frame 44 is adsorbed and fixed on the lower surface of the second inner ring 32.

[0045] In one embodiment, anti-slip patterns are also provided on the outer side surface of the second outer ring 12 to facilitate the user to rotate the second outer ring 12.

[0046] The present invention provides a lens support assembly, as Figures 6-7As shown in the figure, it includes a filter holder 6, an adapter ring 7, and the lens holder 100 of the above embodiment. The lens holder 100 is detachably fixed to the adapter ring 7, and the filter holder 6 is detachably fixed to the lens holder 100. The adapter ring 7 is used to be mounted on the lens of a camera. By setting special filters on the lens holder 100 and the filter holder 6, the camera can take photos with special effects. There are two fixing seats 62 provided on the filter holder 6. Slots are provided on the fixing seats 62, and a square filter can be inserted into the slots. The square filter can be a graduated filter or a polarizing filter, etc. A circular filter is provided on the first inner ring 31 of the lens holder 100. The circular filter can also be a graduated filter or a polarizing filter, etc.

[0047] In one embodiment, as Figures 6-9 shown, the filter holder 6 is provided with a radially elastically telescopic clamping member 61. Specifically, a fixing groove extending radially can be provided on the outer side surface of the filter holder 6. The clamping member 61 is arranged in the fixing groove, and a spring is arranged in the fixing groove, so as to realize the elastic telescoping of the clamping member 61. An upper connecting ring 101 is provided on the upper surface of the first fixing ring 21. A third inner ring groove is provided on the inner side surface of the upper connecting ring 101. The clamping member 61 is clamped in the third inner ring groove and can rotate in the third inner ring groove. Specifically, during installation, press the clamping member 61 inward radially, move the clamping member 61 to the position where the third inner ring groove is located, and then release the clamping member 61. The clamping member 61 is naturally snapped into the third inner ring groove under the action of elastic force.

[0048] In one embodiment, a connecting ring 76 is provided on the upper surface of the adapter ring 7, a lower connecting ring 102 is provided on the lower surface of the first fixing ring 21. An internal thread is provided on the inner side surface of the lower connecting ring 102, and an external thread is provided on the outer side surface of the connecting ring 76. The lower connecting ring 102 and the connecting ring 76 are threadedly connected, so that the lens holder 100 can be fixed on the adapter ring 7.

[0049] In one embodiment, a first clamping seat 71 and a second clamping seat 72 are provided on the lower surface of the adapter ring 7. A limiting groove 75 is provided on the inner side surface of the second clamping seat 72. An adjusting nut 73 that can rotate relative to the first clamping seat 71 is provided on the first clamping seat 71. A limiting plate 74 that can telescopically extend radially is provided on the inner side surface of the first clamping seat 71. By rotating the adjusting nut 73, the limiting plate 74 can be adjusted to extend outward or contract inward. When installing the adapter ring 7, first rotate the adjusting nut 73 to retract the limiting plate 74, and snap the structure to be installed into the limiting groove 75, and then rotate the adjusting nut 73 to make the limiting plate 74 extend. The limiting plate 74 and the limiting groove 75 can limit the separation of the adapter ring 7 from the structure to be installed.

[0050] The above content is a further detailed description of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention pertains, without departing from the concept of the present invention, several simple deductions or substitutions can be made.

Claims

1. A lens holder, characterized in that: Comprising a first outer ring, a first fixing ring and a first inner ring which are coaxially arranged; The outer side surface of the first fixing ring is provided with a first outer ring groove, and the inner side surface of the first fixing ring is provided with a first inner ring groove. The inner walls of the first outer ring groove and the first inner ring groove are set to be elastically deformable; The first outer ring is arranged in the first outer ring groove and can rotate in the first outer ring groove, and the first inner ring is arranged in the first inner ring groove and can rotate in the first inner ring groove; A magnet is arranged on the first outer ring, and the first inner ring is made of a metal material that can be adsorbed by the magnet and is linked with the first outer ring; The inner side surface of the first outer ring is provided with a groove, and the magnet is arranged in the groove; There are a plurality of the grooves, and the plurality of grooves are evenly distributed on the inner side surface of the first outer ring, and each groove is provided with the magnet; A lens is fixed on the first inner ring; The lens is fixed in a lens frame, and a plurality of magnetic members are arranged on the lens frame. The magnetic members are adsorbed and fixed on the upper surface or the lower surface of the first inner ring, so that the lens is fixed on the first inner ring.

2. The lens holder according to claim 1, wherein: The outer side surface of the first outer ring is provided with anti-slip lines.

3. The lens holder according to claim 1, characterized in that: The lens includes a circular progressive lens or a polarizing lens.

4. The lens holder according to claim 1, characterized in that: The lens holder further comprises a second outer ring, a second fixing ring and a second inner ring which are coaxially arranged; the outer side surface of the second fixing ring is provided with a second outer ring groove, and the inner side surface of the second fixing ring is provided with a second inner ring groove; the second outer ring is arranged in the second outer ring groove and can rotate in the second outer ring groove, and the second inner ring is arranged in the second inner ring groove and can rotate in the second inner ring groove; a magnetic body is arranged on the second outer ring, and the second inner ring can be adsorbed by the magnetic body and is linked with the second outer ring; a lens is fixed on the second inner ring; the second fixing ring is detachably fixed on the surface of the first fixing ring.

5. A lens holder assembly, characterized in that: Comprising a filter holder, an adapter ring and the lens holder according to any one of claims 1-4, the lens holder is detachably fixed on the adapter ring, and the filter holder is detachably fixed on the lens holder.

6. The lens holder assembly according to claim 5, wherein: The filter holder is provided with a clamping member that can elastically expand and contract in the radial direction. The upper surface of the first fixing ring is provided with an upper connecting ring, and the inner side surface of the upper connecting ring is provided with a third inner ring groove. The clamping member is clamped in the third inner ring groove and can rotate in the third inner ring groove.

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