CN220961922U - Sunlight focusing device based on Cassegrain structure and optical fiber interface - Google Patents
Sunlight focusing device based on Cassegrain structure and optical fiber interface Download PDFInfo
- Publication number
- CN220961922U CN220961922U CN202322982341.0U CN202322982341U CN220961922U CN 220961922 U CN220961922 U CN 220961922U CN 202322982341 U CN202322982341 U CN 202322982341U CN 220961922 U CN220961922 U CN 220961922U
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- connecting plate
- fiber interface
- cassegrain
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 45
- 230000008878 coupling Effects 0.000 abstract description 17
- 238000010168 coupling process Methods 0.000 abstract description 17
- 238000005859 coupling reaction Methods 0.000 abstract description 17
- 238000009434 installation Methods 0.000 abstract description 4
- 230000001808 coupling effect Effects 0.000 abstract description 3
- 230000002776 aggregation Effects 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 206010073261 Ovarian theca cell tumour Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 208000001644 thecoma Diseases 0.000 description 1
Landscapes
- Optical Couplings Of Light Guides (AREA)
Abstract
The utility model discloses a solar light focusing device based on a Cassegrain structure and an optical fiber interface, which relates to the technical field of solar light focusing devices. Therefore, the problems of poor coupling degree and the like are avoided, the coupling effect is improved, the coupling efficiency is stable, the installation is convenient, and the use cost can be reduced.
Description
Technical Field
The utility model relates to the technical field of sunlight focusing devices, in particular to a sunlight focusing device based on a Cassegrain structure and an optical fiber interface.
Background
The importance and significance of solar light coupling into the optical fiber is to realize efficient energy transmission and optical signal transmission. The solar light and the optical fiber are combined, such as a solar power generation system, an optical fiber communication network, an optical fiber sensing technology and the like, so that the solar light and the optical fiber can be widely applied.
The current widely used concentrators mainly comprise three types of Fresnel lenses, parabolic reflectors and conventional spherical lenses. The parabolic reflector has no chromatic aberration due to its reflective properties. When the sunlight is approximately parallel to the light, the reflecting surface makes the light reflected and converged at the focus. However, the focus of the solar energy collecting system is on the same side as the incident sunlight, and other devices near the focus inevitably cause central obstruction, so that the receiving efficiency of the light collecting system is reduced. Cassegrain antennas are typically reflective concentrators that utilize parabolic reflectors, consisting of three parts, namely a primary reflector, a secondary reflector, and a radiation source. The main reflector is a rotating paraboloid, the auxiliary reflecting surface is a rotating hyperboloid, the main reflector is suitable for receiving sunlight with large caliber, has no chromatic aberration, corrects the coma aberration of the paraboloid, has more compact structure, generally does not need to adjust an optical axis, and still has the problem of low coupling efficiency due to the fact that a focus is on the same side as the incident sunlight.
Disclosure of utility model
Aiming at the problems in the prior art, the utility model provides a sunlight focusing device based on a Cassegrain structure and an optical fiber interface, so as to solve the technical problem of low coupling efficiency of the traditional Cassegrain antenna.
The technical scheme adopted by the utility model is as follows:
the sunlight focusing device based on the Cassegrain structure comprises the Cassegrain structure and an optical fiber interface, wherein a planoconvex lens is arranged between the Cassegrain structure and the optical fiber interface, a connecting line of a light source output port of the Cassegrain structure and the optical fiber interface passes through the planoconvex lens, and the planoconvex lens is arranged in a structure capable of moving between the Cassegrain structure and the optical fiber interface and adjusting the inclination angle of the planoconvex lens.
More preferably, the plano-convex lens is connected between the Cassegrain structure and the optical fiber interface through a coaxial connector and a connecting plate, a light source output port of the Cassegrain structure is in a tubular structure, and an external thread is arranged at the outer end of the tubular structure; the plano-convex lens is fixed in the middle of the connecting plate, and a through hole surrounding the plano-convex lens is formed in the connecting plate; the coaxial connector is provided with an internal thread through hole matched with the external thread, at least 3 guide posts are uniformly arranged outside the internal thread through hole in a ring mode, and the guide posts penetrate through the through hole in the connecting plate to be connected with the optical fiber interface. The structure is connected through four parallel metal bars of the coaxial adjuster, so that the position of the plano-convex lens can be adjusted, the minimum emergent light spots can be realized, and the coupling efficiency is improved.
Still further, the diameter of guide post is less than the through-hole diameter on the connecting plate, is equipped with the knob fixed with connecting plate and guide post on the connecting plate, and this structure sets up can realize the regulation to plano-convex lens inclination, realizes minimum facula coupling into the task of optic fibre, improves coupling efficiency.
Furthermore, the number of the guide posts is 4, and the position of each guide post corresponding to the connecting plate is provided with a knob for fixing the connecting plate and the guide post.
Further, the knob comprises a knob head and an external thread column, an internal thread hole communicated with a corresponding through hole is formed in the side face of the connecting plate, and the internal thread hole is matched with the thread of the external thread column.
In summary, compared with the prior art, the utility model has the following advantages and beneficial effects:
1. On the basis of an automatic light-following device of the Cassegrain telescope, the utility model arranges the plano-convex lens outside the Cassegrain structure to collect light, and carries out secondary collection on the light collected by the Cassegrain structure, and a multimode optical fiber is arranged behind the plano-convex lens, and the light collected by the secondary collection is coupled to the multimode optical fiber, thereby avoiding the problems of poor coupling degree and the like, improving the coupling effect, having stable coupling efficiency, being convenient for installation and being capable of reducing the use cost;
2. According to the utility model, the minimum emergent light spot can be realized by adjusting the position of the plano-convex lens, and the light spot is overlapped with the optical fiber interface by adjusting the inclination angle of the plano-convex lens, so that the task of coupling the minimum light spot into the optical fiber is realized, and the coupling efficiency is further improved;
3. The utility model has the advantages of detachable connection among all the components, stable coupling efficiency, convenient installation, low cost and high coupling efficiency.
4. The utility model has the optical fiber interface, can be connected with multimode optical fibers and also can be connected with single-mode optical fibers, can be freely selected according to actual requirements, and can couple light after secondary aggregation to the multimode optical fibers, so that the direction of the light can be changed in the optical fibers, the transmission of sunlight is facilitated, and the sunlight can be easily guided into a room from the outside.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of the working principle of the present utility model;
The reference numerals in the figures are respectively: 1. a cassegrain structure; 2. a light source output tube; 3. an external thread; 4. a coaxial adjuster; 5. an internally threaded through hole; 6. a guide post; 7. a knob; 8. a connecting plate; 9. a plano-convex lens; 10. and an optical fiber interface.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail with reference to the accompanying drawings, and examples and verification examples. It should be understood that the specific embodiments and examples of verification described herein are intended to be illustrative of the utility model and are not intended to be limiting of the utility model, i.e., the embodiments described are merely some, rather than all, of the embodiments of the utility model.
The word "embodiment" as used herein does not necessarily mean that any embodiment described as "exemplary" is preferred or advantageous over other embodiments. Performance index testing in this method example unless otherwise specified, conventional testing methods in the art were employed. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure.
Unless otherwise defined, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs; other raw materials, reagents, test methods and technical means not specifically mentioned in the present utility model refer to raw materials and reagents commonly used by those skilled in the art, and experimental methods and technical means commonly employed.
Examples
As shown in fig. 1, in one implementation of the present utility model, the structure specifically includes:
The optical fiber connector comprises a Cassegrain structure 1 and an optical fiber interface 10, wherein a planoconvex lens 9 is arranged between the Cassegrain structure 1 and the optical fiber interface 10, a connecting line of a light source output port of the Cassegrain structure 1 and the optical fiber interface 10 passes through the planoconvex lens 9, and the planoconvex lens 9 is structured as follows: the plano-convex lens 9 is connected between the Cassegrain structure 1 and the optical fiber interface 10 through a coaxial connector 4 and a connecting plate 8, a light source output port of the Cassegrain structure 1 is arranged as a light source output pipe 2, and an external thread 3 is arranged at the outer end of the light source output pipe 2; the plano-convex lens 9 is fixed in the middle of the connecting plate 8, and a through hole surrounding the plano-convex lens is formed in the connecting plate 8; the coaxial connector 4 is provided with an internal thread through hole 5 matched with the external thread 3, at least 3 guide posts 6 are uniformly arranged outside the internal thread through hole 5 in a ring mode, and the guide posts 6 penetrate through the through holes in the connecting plate 8 to be connected with the optical fiber interface 10. The structure can adjust the position of the planoconvex lens by poking the connecting plate 8 to slide left and right on the guide post 6, and finally, a proper position is found to realize the minimum emergent light spots, so that the coupling efficiency is improved.
The guide post 6 sets up 4, and the diameter of guide post 6 is less than the through-hole diameter on the connecting plate 8, is equipped with the knob 7 fixed with connecting plate 8 and guide post 6 on the connecting plate 8, knob 7 comprises knob head and external screw thread post, the side of connecting plate is equipped with the internal thread hole that the intercommunication corresponds the through-hole, internal thread hole and the screw thread phase-match of external screw thread post. In the above-mentioned structure, the diameter of guide post 6 is less than the setting of the through-hole diameter on connecting plate 8, firstly is convenient for stir connecting plate 8 when sliding left and right on guide post 6, and secondly is convenient for adjust the inclination of plano-convex lens 9 through the position difference of four through-holes of control connecting plate 8 and guide post, when plano-convex lens 9 adjusts suitable position for the facula with the optical fiber interface coincidence, thereby inwards revolve connecting plate 8 is fixed on guide post 6 with knob 7.
The working principle of this embodiment is shown in fig. 2, after sunlight passes through the cassegrain structure 1, secondary aggregation is performed through the planoconvex lens 9, and a multimode optical fiber is placed behind the planoconvex lens 9, so that light after secondary aggregation is coupled to the multimode optical fiber, thereby avoiding the problems of poor coupling degree and the like, improving the coupling effect, and having stable coupling efficiency, convenient installation and reduced use cost.
In the above-described structure of the present embodiment, the guide posts 6 may be provided in 3 or other numbers capable of adjusting the inclination angle of the plano-convex lens 9, and the arrangement of the knob 7 is not limited to the above-described implementation. And the above examples and verification examples only represent specific embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it is possible for a person skilled in the art to make several variants and modifications without departing from the technical idea of the application, which fall within the scope of protection of the application.
Claims (6)
1. The sunlight focusing device based on the Cassegrain structure and the optical fiber interface comprises the Cassegrain structure and the optical fiber interface, and is characterized in that a planoconvex lens is arranged between the Cassegrain structure and the optical fiber interface, a connecting line of a light source output port of the Cassegrain structure and the optical fiber interface passes through the planoconvex lens, and the planoconvex lens is arranged in a structure capable of moving between the Cassegrain structure and the optical fiber interface and adjusting the inclination angle of the planoconvex lens.
2. The sunlight focusing device according to claim 1, wherein the plano-convex lens is connected between the cassegrain structure and the optical fiber interface through a coaxial connector and a connecting plate, a light source output port of the cassegrain structure is in a tubular structure, and an external thread is arranged at the outer end of the tubular structure; the plano-convex lens is fixed in the middle of the connecting plate, and a through hole surrounding the plano-convex lens is formed in the connecting plate; the coaxial connector is provided with an internal thread through hole matched with the external thread, at least 3 guide posts are uniformly arranged outside the internal thread through hole in a ring mode, and the guide posts penetrate through the through hole in the connecting plate to be connected with the optical fiber interface.
3. The sunlight focusing device according to claim 2, wherein the diameter of the guide post is smaller than the diameter of the through hole on the connecting plate, and a knob for fixing the connecting plate and the guide post is arranged on the connecting plate.
4. A sunlight focusing device according to claim 2, wherein the number of the guide posts is 4, and a knob for fixing the connecting plate with the guide posts is arranged at the position of each guide post corresponding to the connecting plate.
5. The sunlight focusing device according to claim 3 or 4, wherein the knob comprises a knob head and an external threaded column, and an internal threaded hole communicated with the corresponding through hole is formed in the side surface of the connecting plate, and the internal threaded hole is matched with the threads of the external threaded column.
6. A sunlight focusing device according to claim 1, wherein the optical fiber interface is connected with a multimode optical fiber or a single mode optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322982341.0U CN220961922U (en) | 2023-11-02 | 2023-11-02 | Sunlight focusing device based on Cassegrain structure and optical fiber interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322982341.0U CN220961922U (en) | 2023-11-02 | 2023-11-02 | Sunlight focusing device based on Cassegrain structure and optical fiber interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220961922U true CN220961922U (en) | 2024-05-14 |
Family
ID=91016179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322982341.0U Active CN220961922U (en) | 2023-11-02 | 2023-11-02 | Sunlight focusing device based on Cassegrain structure and optical fiber interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220961922U (en) |
-
2023
- 2023-11-02 CN CN202322982341.0U patent/CN220961922U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6895145B2 (en) | Apparatus and method for collecting light | |
| US7558452B2 (en) | Apparatus and method for collecting energy | |
| US8339709B1 (en) | Low numerical aperture (low-NA) solar lighting system | |
| CN201215596Y (en) | Compound parabolic condenser used in solar fiber illumination system | |
| CN102072453A (en) | Indoor natural lighting system based on light propagation technology | |
| CN101424785B (en) | Optical energy collection and perfect reflection optical energy transmission system | |
| JP2016512617A (en) | Collimate the light and collect it in the optical fiber | |
| CN101581502B (en) | Trough-type consequent focus solar condensator for axial light transmitting | |
| CN101922672A (en) | Sunlight full-light guidance lighting system | |
| KR100986252B1 (en) | Sun light concentrating device for natural lighting | |
| CN104832877A (en) | Sunlight guide-in device | |
| CN220961922U (en) | Sunlight focusing device based on Cassegrain structure and optical fiber interface | |
| CN110186206A (en) | A kind of more Fresnel Lenses integrated solar light and heat collection systems of double-axis tracking | |
| CN201803303U (en) | Full-sunlight guiding-in and acquiring system | |
| CN106195909B (en) | Device for guiding parallel composite light into optical fiber by using self-focusing lens combination | |
| US20090320901A1 (en) | Concentration photovoltaic cell system with light guide | |
| CN103095177B (en) | Apparatus for utilization of solar energy with solar and Application of Solar Energy method | |
| CN102486284A (en) | Novel solar illumination device | |
| CN107037575B (en) | Off-axis reflection type optical antenna and system | |
| CN214222978U (en) | Active tracking type natural light illuminating system | |
| CN210128311U (en) | Light guide and light path selector | |
| WO2017063391A1 (en) | Sunlight illuminating system | |
| CN110989153A (en) | Optical fiber conduction type sunlight guide-in equipment | |
| CN112097405A (en) | Static large-angle solar energy collecting system | |
| CN104791706B (en) | A kind of sunlight collection conduction device based on hollow flexible light conduit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |