CN117130126B - Foldable luneberg lens - Google Patents
Foldable luneberg lens Download PDFInfo
- Publication number
- CN117130126B CN117130126B CN202311397388.9A CN202311397388A CN117130126B CN 117130126 B CN117130126 B CN 117130126B CN 202311397388 A CN202311397388 A CN 202311397388A CN 117130126 B CN117130126 B CN 117130126B
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- folding
- foldable
- laminated body
- laminated
- plates
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- 239000003989 dielectric material Substances 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims description 8
- 238000010030 laminating Methods 0.000 claims description 4
- 238000003475 lamination Methods 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 7
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/026—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using retaining rings or springs
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The invention relates to a foldable luneberg lens, comprising a laminate and a folding frame; the laminated body comprises a plurality of laminated plates, wherein the adjacent 2 plates are connected together through connecting wires or breathable films, and dielectric materials are uniformly distributed on each plate; the folding frame comprises a base and at least 3 folding rods, the bottom ends of the folding rods are rotatably arranged on the base, the at least 3 folding rods are uniformly distributed around the laminated body, and the top ends of the folding rods are connected with the top surface of the laminated body through ropes; at least 3 folding bars lifting the stack by rotating the pull rope so that the stack is switched from the compressed stack state to the expanded stack state; the folding frame is also provided with a positioning mechanism which is used for positioning the folding bars when the laminated body is unfolded and laminated; in the unfolded and laminated state, the dielectric materials on the plates are combined to form a three-dimensional lens body. The invention has the advantages of simple structure, reasonable design, convenient transportation and the like.
Description
Technical Field
The invention relates to the technical field of lens antennas, in particular to a foldable luneberg lens.
Background
The luneberg lens is an important part of the lens antenna, and the luneberg lens on the market at present is of an integral structure, so that the luneberg lens can only show a spherical or cylindrical shape no matter when in operation or not in operation, the occupied space is large, the carrying difficulty is high, the carrying difficulty occupies a large space in a carriage with a limited space, the transportation cost is high, and the long-term development of enterprises is not facilitated.
Disclosure of Invention
The invention aims to provide a foldable luneberg lens which has the advantages of simple structure, reasonable design, convenience in transportation and the like.
The technical scheme adopted for solving the technical problems is as follows: a foldable luneberg lens comprising a laminate and a folding shelf; the laminated body comprises a plurality of laminated plates, wherein the adjacent 2 plates are connected together through connecting wires or breathable films, and medium materials are uniformly distributed on each plate; the folding frame comprises a base and at least 3 folding bars; the laminated body is arranged on the base; the bottom ends of the folding rods are rotatably arranged on the base, the rotation axes of the folding rods are arranged along the horizontal direction, at least 3 folding rods are uniformly distributed around the laminated body, and the top ends of the folding rods are connected with the top surface of the laminated body through ropes; at least 3 folding bars cooperate to hoist the stack together by rotating the pull rope, respectively, so that the stack is switched from the compressed stack state to the expanded stack state; the folding frame is also provided with a positioning mechanism which is used for positioning the folding bars when the laminated body is unfolded and laminated; the laminated body is in an unfolding and laminating state, and the dielectric materials on the plate are combined together to form a three-dimensional lens body; the lens body is used for changing the radiation direction of electromagnetic waves.
The working principle of the invention is as follows:
during transportation, the positioning mechanism is unlocked, and all folding rods are rotated, so that the suspension height of the laminated body is gradually reduced until the laminated body is completely placed on the ground; laminate when placed on the ground: each plate of the laminated body sinks towards the ground under the action of gravity, so that the folding distance between every two adjacent plates is reduced by extrusion until the adjacent plates are contacted and attached to each other, and the laminated body is switched from an unfolding laminated state to a compression laminated state; meanwhile, as all folding rods of the folding frame can be folded together through rotation, the occupied space of the folding frame is reduced, the occupied space of the luneberg lens is reduced, the transportation cost is reduced, and the transportation is more convenient. When the lens body is installed and used, all the folding rods are rotated, so that the laminated body is lifted, the laminated body is switched from a compressed laminated state to an unfolded laminated state, and the positioning mechanism locks the folding frame, so that the laminated body is kept in the unfolded laminated state to form the lens body, and the lens body is convenient to install and use.
Further, in a foldable luneberg lens as described above, the plurality of plates are connected together by at least 3 connecting lines, and the connection between each plate and the connecting line is arranged near the edge of the plate.
Further, in another embodiment of a foldable luneberg lens as described above, the edges of each of the adjacent 2 panels are connected by a breathable film, such that the breathable film obstructs the space between the adjacent 2 panels when the laminate is in the unfolded and laminated state.
Further, in a collapsible Robert lens as described above, the dielectric constant is lower and lower in all the inside-to-outside directions within the body, the inside-to-outside directions being directed from the central region of the body to the boundary of the body.
Further, in a foldable luneberg lens as described above, each plate is made of a PCB board, and the dielectric material on each plate is a pattern of conductive ink printed on its surface.
Further, in a foldable luneberg lens as described above, the thickness D1 of each plate is in the range of 0.2mm to 1.5mm, the pitch between adjacent plates is uniform, and the pitch D2 between the top surfaces of adjacent plates is in the range of 1mm to 6 mm.
Further, as described above, the foldable luneberg lens further comprises a lifting assembly, and the lifting assembly comprises a connecting seat and a lifting rope; the top ends of the folding rods are connected with the connecting seat through the ropes; the lamination body is positioned below the connecting seat, and the lamination body is fixedly connected with the connecting seat through a hoisting rope.
Further, as described above, in a foldable luneberg lens, the base is provided with at least 3 mounting positions, one mounting position corresponds to a folding bar, each mounting position includes 2 mounting risers, the 2 mounting risers are disposed opposite to each other, the bottom end of the folding bar is rotatably mounted between the 2 mounting risers, and the rotation axis of the folding bar is perpendicular to the mounting risers.
Further, as described above, the positioning mechanism comprises a plurality of locking structures, at least one locking structure is disposed on each mounting position, each locking structure comprises a locking hole, a plugging hole and a bolt, the locking hole is disposed on one of the mounting risers of the mounting positions, the locking hole is communicated with two sides of the mounting riser, the plugging hole is disposed on the folding rod corresponding to the mounting position, and the plugging hole can be a through hole penetrating the folding rod or a blind hole not penetrating the folding rod; the inserting hole can be opposite to the locking hole through the rotation of the folding rod, and one end of the bolt passes through the locking hole and then is inserted into the inserting hole.
Further, in the foldable luneberg lens as described above, the outer profile of the cross section of each folding rod is circular; each locking structure further comprises a mounting seat and a spring, wherein the mounting seat is arranged on the corresponding mounting vertical plate, a limiting channel communicated with two sides of the mounting seat is formed on the mounting seat, a channel port of the limiting channel is communicated with the orifice of the locking hole, and a limiting flange is formed on a channel port of the limiting channel; one end of the bolt sequentially passes through the limiting channel and the locking hole and then is inserted into the inserting hole, a limiting lug is formed on the bolt, the limiting lug is slidably arranged in the limiting channel, and the spring is compressively arranged between the limiting lug and the limiting flange of the limiting channel.
The technical scheme of the invention has the following beneficial effects: has the advantages of simple structure, reasonable design, convenient transportation and the like.
Drawings
Fig. 1 is a front view of embodiment 1;
FIG. 2 is a top view of example 1;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
fig. 4 is a schematic structural view of the laminate of embodiment 1 in an unfolded laminated state;
fig. 5 is a schematic view of the structure of the laminate of embodiment 1 in a compressed laminated state;
fig. 6 is a schematic structural view of a laminate of embodiment 2;
reference numerals illustrate:
1-a laminate; 11-plate members; 2-connecting lines; 3-folding frames; 31-a base; 311-mounting table; 312-connecting rods; 32-folding bars; 321-mounting ring; 33-mounting position; 331-mounting a riser; 34-rotating shaft; 35-hoisting the assembly; 351-connecting seats; 3511-a connecting ring; 3512-lifting rings; 352-hoisting rope; 36-rope; a 4-lock structure; 41-mounting seats; 411-limiting channel; 42-a bolt; 421-limit bump; 422-pull ring; 43-spring;
10-compression gap; 20-breathable film; 201-vent.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present invention, a detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.
Example 1
Fig. 1 to 5 show a foldable luneberg lens according to embodiment 1, comprising a laminate 1 and a folding frame 3; the laminated body 1 comprises a plurality of laminated plates 11, wherein the adjacent 2 plates 11 are connected together through connecting wires 2, and dielectric materials are uniformly distributed on each plate 11; the folding leg 3 comprises a base 31 and 3 folding bars 32; the laminate 1 is provided on a base 31; the bottom ends of the folding rods 32 are rotatably arranged on the base 31, the rotation axis of each folding rod 32 is arranged along the horizontal direction, 3 folding rods 32 are uniformly distributed around the laminated body 1, and the top ends of the folding rods 32 are connected with the top surface of the laminated body 1 through ropes 36; the 3 folding bars 32 cooperate to lift the laminated body 1 by rotating the pull rope 36, respectively, so that the laminated body 1 is switched from the compressed laminated state to the expanded laminated state; the folding frame 3 is also provided with a positioning mechanism for positioning the folding bars 32 when the laminated body 1 is unfolded and laminated; in the unfolded and laminated state of the laminated body 1, the dielectric materials on the plate 11 are combined together to form a three-dimensional lens body; the lens body is used for changing the radiation direction of electromagnetic waves.
The working principle of the embodiment is as follows:
during transportation, the positioning mechanism is unlocked, and all the folding rods 32 are rotated, so that the suspension height of the laminated body 1 is gradually reduced until the laminated body is completely placed on the ground; laminate 1 when placed on the ground: the plates 11 of the laminated body 1 sink towards the ground under the action of gravity, so that the folding distance between the adjacent plates 11 is reduced by extrusion until the adjacent plates 11 are contacted and attached to each other, and the laminated body 1 is switched from an unfolding and laminating state to a compression and laminating state; meanwhile, as the folding rods 32 of the folding frame 3 can be folded together through rotation, the occupied space of the folding frame 3 is reduced, so that the occupied space of the luneberg lens is reduced, the transportation cost is reduced, and the transportation is more convenient. When the lens is installed and used, all the folding rods 32 are rotated, so that the laminated body 1 is lifted, the laminated body 1 is switched from a compressed laminated state to an unfolded laminated state, and the positioning mechanism locks the folding frame 3, so that the laminated body 1 is kept in the unfolded laminated state to form the lens body, and the lens is convenient to install and use.
As shown in fig. 1,2, 4 and 5, a plurality of plate members 11 are connected together by 8 connecting lines 2, and the connection between each plate member 11 and the connecting line 2 is arranged near the edge of the plate member 11. This design makes the connection between the plates 11 easy to install.
In the lens body, the dielectric constant is lower and lower in all the directions from inside to outside, namely from the central area of the lens body to the boundary of the lens body. Each board 11 is made of a PCB board, and the dielectric material on each board 11 is a conductive ink pattern printed on the surface thereof. The conductive ink pattern may be a straight pattern or a cross pattern or a rice pattern, and the dielectric materials are distributed on the plate 11 according to a certain distribution rule, so that the dielectric constant of the whole formed by the dielectric materials on the plate 11 is gradually lower from inside to outside.
As shown in fig. 4, the thickness D1 of each plate 11 is in the range of 0.2mm to 1.5mm, the pitch between each adjacent plate 11 is uniform, and the pitch D2 between the top surfaces of each adjacent plate 11 is in the range of 1mm to 6 mm. In this example, D1 is 1mm and D2 is 2mm.
As shown in fig. 1 to 3, the folding frame 3 further comprises a hoisting assembly 35, and the hoisting assembly 35 comprises a connecting seat 351 and a hoisting rope 352; the top end of each folding rod 32 is connected with the connecting seat 351 through the rope 36; the lengths of the ropes 36 are the same, and the folding bars 32 are each rotated so that the ropes 36 are simultaneously pulled so that the connection seat 351 is fixed at the center position of the 3 folding bars 32; the laminated body 1 is positioned below the connecting seat 351, and the laminated body 1 and the connecting seat 351 are connected and fixed through the hoisting ropes 352. The lifting structure between the folding frame 3 and the laminated body 1 can be more stable through the design, and the stability is improved. In this embodiment, a mounting ring 321 is formed on the top end of each folding rod 32, 3 connecting rings 3511,3 are arranged on the circumferential surface of the connecting seat 351, and the mounting rings 321 of the folding rods 32 are connected with 3 connecting rings 3511 of the connecting seat 351 in one-to-one correspondence through a rope 36; a lifting ring 3512 is further formed on the bottom surface of the connecting seat 351, one end of the lifting rope 352 is connected and mounted on the lifting ring 3512, and the other end of the lifting rope 352 is connected with the top of the laminated body 1.
As shown in fig. 1 to 3, the base 31 is provided with 3 mounting positions 33, one mounting position 33 corresponds to a folding bar 32, each mounting position 33 includes 2 mounting risers 331,2 and mounting risers 331 disposed opposite to each other, the bottom end of the folding bar 32 is rotatably mounted between the 2 mounting risers 331 through a rotating shaft 34, and the rotation axis of the folding bar 32 is perpendicular to the mounting risers 331. In this embodiment, the base 31 includes 3 mounting tables 311 and 3 connecting rods 312,3, wherein the mounting tables 311 are on the same horizontal plane and are arranged in an equilateral triangle, and each two adjacent mounting tables 311 are connected by a connecting rod 312; the 3 mounting positions 33 are arranged on the 3 mounting tables 311 in a one-to-one correspondence manner, so that the 3 mounting positions 33 are also distributed in an equilateral triangle shape, and the design can enable the structure of the folding frame 3 to be more stable and improve the stability.
As shown in fig. 1 to 3, the positioning mechanism comprises a plurality of locking structures 4, 2 locking structures 4 are arranged on each mounting position 33, and one locking structure 4 corresponds to one mounting vertical plate 331; each locking structure 4 comprises a locking hole, a plug-in hole and a plug pin 42, wherein the locking hole is arranged on the corresponding mounting vertical plate 331 of the mounting position 33, the locking hole is communicated with two side surfaces of the corresponding mounting vertical plate 331, and the plug-in hole is arranged on the folding rod 32 corresponding to the mounting position 33; the insertion hole is faced to the locking hole by the rotation of the folding bar 32, and one end of the latch pin 42 is inserted into the insertion hole after passing through the locking hole. In this embodiment, the insertion holes of the 2 locking structures 4 on the mounting position 33 are mutually communicated to form a through hole, so that the processing is more convenient. Further, the other end of the latch 42 in this embodiment is formed with a tab 422 to facilitate the operation of the latch 42.
As shown in fig. 1 to 3, each folding bar 32 has a circular structure in its cross-sectional outer contour; each locking structure 4 further comprises a mounting seat 41 and a spring 43, wherein the mounting seat 41 is arranged on the corresponding mounting vertical plate 331, a limiting channel 411 communicated with two sides of the mounting seat 41 is formed on the mounting seat 41, one channel port of the limiting channel 411 is communicated with the orifice of the locking hole, and a limiting flange is formed on the other channel port of the limiting channel 411; one end of the bolt 42 sequentially passes through the limiting channel 411 and the locking hole and then is inserted into the insertion hole, a limiting projection 421 is formed on the bolt 42, the limiting projection 421 is slidably disposed in the limiting channel 411, and the spring 43 is compressively disposed between the limiting projection 421 and the limiting flange of the limiting channel 411. In the present embodiment, when the folding bar 32 is in the unlocked state, the folding bar 32 is not perpendicular to the horizontal plane; during the installation of the luneberg lens, the folding rod 32 is rotated in the vertical direction, and during this process, the latch pin 42 is pressed by the circular outer contour of the folding rod 32 so that the spring 43 is gradually compressed, so that the latch pin 42 has a movement tendency toward the folding rod 32; when the folding rod 32 rotates to a vertical state, the plug pin 42 is opposite to the insertion hole on the folding rod 32, so that the plug pin 42 is pushed and inserted into the insertion hole under the action of the spring 43, thereby realizing the automatic locking function of the locking structure 4 on the folding rod 32, and being more convenient to use.
Example 2
A foldable luneberg lens of example 2 is shown in fig. 6, and example 2 differs from example 1 in that: the edges of each of the adjacent 2 plates 11 are connected by the air-permeable film 20 so that the air-permeable film 20 shields the space between the adjacent 2 plates 11 in the unfolded laminated state of the laminated body 1. Such a design makes it possible to change the connection between each adjacent panel 11 from a point-contact connection structure to a line-contact connection structure, as compared with embodiment 1, so that the connection structure of the laminated body 1 in the unfolded laminated state is more stable and has higher stability. In this embodiment, the ventilation film 20 is further formed with a plurality of ventilation holes 201 communicating with two sides thereof, and the compression gap 10 formed between each adjacent plate 11 of the laminated body 1 is correspondingly conducted with at least one ventilation hole 201, so as to improve the air communication between the compression gap 10 and the external environment, so that the laminated body 1 can be switched between the unfolded laminated state and the compressed laminated state more easily, and the use is convenient.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications, combinations and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. A foldable luneberg lens, characterized by: comprises a laminated body and a folding frame; the laminated body comprises a plurality of laminated plates, and the spacing between every two adjacent plates is consistent; the adjacent 2 plates are connected together through connecting wires or breathable films, and medium materials are uniformly distributed on each plate; the folding frame comprises a base and at least 3 folding bars; the laminated body is arranged on the base; the bottom ends of the folding rods are rotatably arranged on the base, the rotation axes of the folding rods are arranged along the horizontal direction, at least 3 folding rods are uniformly distributed around the laminated body, and the top ends of the folding rods are connected with the top surface of the laminated body through ropes; at least 3 folding bars cooperate to hoist the stack together by rotating the pull rope, respectively, so that the stack is switched from the compressed stack state to the expanded stack state; the folding frame is also provided with a positioning mechanism which is used for positioning the folding bars when the laminated body is unfolded and laminated; the laminated body is in an unfolding and laminating state, and the dielectric materials on the plate are combined together to form a three-dimensional lens body; the lens body is used for changing the radiation direction of electromagnetic waves.
2. A foldable luneberg lens according to claim 1, wherein: the plates are connected together through at least 3 connecting lines, and the connection parts of the plates and the connecting lines are distributed near the edges of the plates.
3. A foldable luneberg lens according to claim 1, wherein: the edges of each two adjacent plates are connected through the breathable films, so that the breathable films can shield the space between the two adjacent plates when the laminated body is in an unfolded and laminated state.
4. A foldable luneberg lens according to claim 1 or 2 or 3, wherein: in the lens body, the dielectric constant is lower and lower in all the directions from inside to outside, namely from the central area of the lens body to the boundary of the lens body.
5. A foldable luneberg lens according to claim 4, wherein: each plate is made of a PCB, and the dielectric material on each plate is a conductive ink pattern printed on the surface of the dielectric material.
6. A foldable luneberg lens according to claim 1 or 2 or 3, wherein: the thickness D1 of each plate is in the range of 0.2mm to 1.5mm, and the distance D2 between the top surfaces of each adjacent plate is in the range of 1mm to 6 mm.
7. A foldable luneberg lens according to claim 1 or 2 or 3, wherein: the folding frame also comprises a hoisting component, and the hoisting component comprises a connecting seat and a hoisting rope; the top ends of the folding rods are connected with the connecting seat through the ropes; the lamination body is positioned below the connecting seat, and the lamination body is fixedly connected with the connecting seat through a hoisting rope.
8. A foldable luneberg lens according to claim 1 or 2 or 3, wherein: the base is provided with at least 3 installation positions, one installation position corresponds with a folding rod, each installation position comprises 2 installation risers, 2 installation risers are just opposite to be arranged, the bottom of the folding rod is rotatably installed between 2 installation risers, and the rotation axis of the folding rod is perpendicular to the installation risers.
9. A collapsible luneberg lens as claimed in claim 8, wherein: the positioning mechanism comprises a plurality of locking structures, at least one locking structure is arranged on each mounting position, each locking structure comprises a locking hole, an inserting hole and a bolt, the locking holes are formed in one mounting vertical plate of the mounting positions, the locking holes are communicated with two side surfaces of the mounting vertical plate, and the inserting holes are formed in folding rods corresponding to the mounting positions; the inserting hole can be opposite to the locking hole through the rotation of the folding rod, and one end of the bolt passes through the locking hole and then is inserted into the inserting hole.
10. A foldable luneberg lens according to claim 9, wherein: the outer contour of the cross section of each folding rod is of a circular structure; each locking structure further comprises a mounting seat and a spring, wherein the mounting seat is arranged on the corresponding mounting vertical plate, a limiting channel communicated with two sides of the mounting seat is formed on the mounting seat, one channel port of the limiting channel is communicated with the orifice of the locking hole, and a limiting flange is formed on the other channel port of the limiting channel; one end of the bolt sequentially passes through the limiting channel and the locking hole and then is inserted into the inserting hole, a limiting lug is formed on the bolt, the limiting lug is slidably arranged in the limiting channel, and the spring is compressively arranged between the limiting lug and the limiting flange of the limiting channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311397388.9A CN117130126B (en) | 2023-10-26 | 2023-10-26 | Foldable luneberg lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311397388.9A CN117130126B (en) | 2023-10-26 | 2023-10-26 | Foldable luneberg lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117130126A CN117130126A (en) | 2023-11-28 |
| CN117130126B true CN117130126B (en) | 2024-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311397388.9A Active CN117130126B (en) | 2023-10-26 | 2023-10-26 | Foldable luneberg lens |
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| Country | Link |
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| CN (1) | CN117130126B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002080731A2 (en) * | 2001-04-03 | 2002-10-17 | Nakata, Robert, H. | Collapsible hammock frame |
| CN113405059A (en) * | 2021-06-08 | 2021-09-17 | 深圳市乐惠光电科技有限公司 | Omnibearing multifunctional working lamp |
| CN214589263U (en) * | 2021-08-27 | 2021-11-02 | 广东福顺天际通信有限公司 | Laminated electromagnetic wave lens |
| WO2021226669A1 (en) * | 2020-05-15 | 2021-11-18 | Vecta Pty Ltd | Lens arrangement |
| CN113839218A (en) * | 2021-11-26 | 2021-12-24 | 广东福顺天际通信有限公司 | Foldable electromagnetic wave lens |
| CN114304970A (en) * | 2021-11-12 | 2022-04-12 | 安徽省乐悠悠户外用品有限公司 | Folding hammock with adjustable height |
| CN217036015U (en) * | 2022-04-13 | 2022-07-22 | 广东福顺天际通信有限公司 | Foldable electromagnetic wave lens |
-
2023
- 2023-10-26 CN CN202311397388.9A patent/CN117130126B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002080731A2 (en) * | 2001-04-03 | 2002-10-17 | Nakata, Robert, H. | Collapsible hammock frame |
| WO2021226669A1 (en) * | 2020-05-15 | 2021-11-18 | Vecta Pty Ltd | Lens arrangement |
| CN113405059A (en) * | 2021-06-08 | 2021-09-17 | 深圳市乐惠光电科技有限公司 | Omnibearing multifunctional working lamp |
| CN214589263U (en) * | 2021-08-27 | 2021-11-02 | 广东福顺天际通信有限公司 | Laminated electromagnetic wave lens |
| CN114304970A (en) * | 2021-11-12 | 2022-04-12 | 安徽省乐悠悠户外用品有限公司 | Folding hammock with adjustable height |
| CN113839218A (en) * | 2021-11-26 | 2021-12-24 | 广东福顺天际通信有限公司 | Foldable electromagnetic wave lens |
| CN217036015U (en) * | 2022-04-13 | 2022-07-22 | 广东福顺天际通信有限公司 | Foldable electromagnetic wave lens |
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| Publication number | Publication date |
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| CN117130126A (en) | 2023-11-28 |
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