CN112558241B - Active optical fiber line with continuously adjustable light spot radius - Google Patents
Active optical fiber line with continuously adjustable light spot radius Download PDFInfo
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- CN112558241B CN112558241B CN202011418848.8A CN202011418848A CN112558241B CN 112558241 B CN112558241 B CN 112558241B CN 202011418848 A CN202011418848 A CN 202011418848A CN 112558241 B CN112558241 B CN 112558241B
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- zoom lens
- optical fiber
- lens
- base
- continuously adjustable
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4206—Optical features
Abstract
The invention discloses an active optical fiber line with continuously adjustable spot radius, which comprises a base, a plurality of groups of optical fiber lines arranged on the base and a zooming module correspondingly arranged on the optical fiber lines, wherein the zooming module comprises a plurality of groups of zooming lens assemblies correspondingly arranged on the optical fiber lines, a fixed lens assembly correspondingly arranged between the zooming lens assemblies and the optical fiber lines, a transmission assembly used for synchronously adjusting the focal lengths of the plurality of groups of zooming lens assemblies and a laser emission source, thereby achieving the purpose of meeting the synchronous calibration function of multi-path optical fiber transmission, realizing the variable spot diameter aiming at the optical fiber lines with different bandwidths and further ensuring the maximum transmission efficiency.
Description
Technical Field
The invention relates to the field of signal transmission, in particular to an active optical fiber wire with continuously adjustable spot radius.
Background
While we are immersed in the 4K audiovisual feast, the industry has started to make efforts at 8K, and what is more important is that a cable capable of meeting the 8K transmission requirement is required in addition to the display terminal and the video source, and the current HDMI2.0 has an upper transmission limit of 18Gbps, which is a data transmission speed that cannot meet the 8K transmission requirement.
To solve the problem of insufficient bandwidth, there are two solutions for 8K devices: one is that the HDMI2.1 transmission cable is directly upgraded, and compared with the upper limit of the HDMI2.0 bandwidth, the HDMI2.1 bandwidth is upgraded to 48Gbps, which can meet the requirement of 8K data transmission speed, but the HDMI2.1 transmission cable has high cost.
And the second is that data transmission is carried out through 4 HDMI2.0 transmission cables, and the data transmission is completed through 4 HDMI2.0 wires together. In the field of signal transmission, an emitting end converts an electric signal into an optical signal through a photoelectric sensor, and a receiving end converts the optical signal into the electric signal to restore an audio-video signal. How to ensure high-quality synchronous transmission of signals in the transmission process of a plurality of optical fibers becomes a pain point to be solved urgently in the field.
Therefore, the prior art still needs to be improved and developed.
Disclosure of Invention
The invention aims to provide an active optical fiber line with continuously adjustable light spot radius, which achieves the aim of meeting the synchronous calibration function of multi-path optical fiber transmission.
The technical purpose of the invention is realized by the following technical scheme:
the utility model provides a facula radius continuously adjustable active optical fiber line, wherein, includes the base, sets up multiunit optical fiber line on the base and correspond set up in the module of zooming of optical fiber line, the module of zooming includes that the multiunit corresponds the zoom lens subassembly that sets up in the optical fiber line, corresponds the setting zoom lens subassembly with fixed lens subassembly between the optical fiber line, be used for the synchronization regulation multiunit zoom lens subassembly focal length's transmission assembly and laser emission source.
The laser emitting source comprises a vertical cavity surface emitting laser arranged at one end of the zoom lens component and a reflector used for reflecting laser emitted by the vertical cavity surface emitting laser into the zoom lens component.
The active optical fiber line of facula radius continuously adjustable, wherein, decide lens subassembly, transmission assembly and laser emission source and all set up on a pedestal, vertical cavity surface emitting laser paster sets up on the pedestal, the speculum is 45 degrees angular settings and is used for with the vertical light that vertical cavity surface emitting laser sent turns into horizontal light.
The active optical fiber line of facula radius continuously adjustable, wherein, zoom lens subassembly includes the lens base, sets up income light side on the lens base decides lens, first zoom lens and second zoom lens, it sets gradually to go into light side decides lens, first zoom lens and second zoom lens, decide the lens subassembly include with zoom lens subassembly corresponds the light-emitting side who sets up and decides lens.
The active optical fiber line with the continuously adjustable light spot radius is characterized in that the zoom lens assembly further comprises a cam ring sleeved on the outer sides of the first zoom lens and the second zoom lens, a first positioning button is arranged on the first zoom lens, a second positioning button is arranged on the second zoom lens, and a first sliding groove which is in sliding fit with the first positioning button and is spirally arranged and a second sliding groove which is in sliding fit with the second positioning button and is spirally arranged are arranged on the cam ring; the spiral directions of the first sliding groove and the second sliding groove are opposite, and when the cam rotates, the first zoom lens and the second zoom lens move towards each other.
The light spot radius is continuously adjustable, wherein the pitch of the first sliding groove is larger than that of the second sliding groove.
The active optical fiber line with the continuously adjustable light spot radius is characterized in that a sliding rod is arranged on the lens base, the sliding rod is arranged along the length direction of the lens base, and the first zoom lens and the second zoom lens are connected to the sliding rod in a sliding mode.
The active optical fiber line with the continuously adjustable light spot radius is characterized in that a transmission gear is arranged on the outer side wall of the cam ring, the transmission assembly comprises a transmission wheel arranged on one side of the zoom lens assembly, and the transmission wheel is connected with the transmission gear through a rack belt.
The active optical fiber line with the continuously adjustable light spot radius is characterized in that a photoelectric conversion module is further arranged on the base, and a chip of the photoelectric conversion module is integrated on the base.
The active optical fiber line with the continuously adjustable light spot radius is characterized in that an electric signal interface for electric communication is further arranged on the base.
In conclusion, the invention has the following beneficial effects:
the zoom lens assemblies which correspond to the multiple groups of optical fiber lines one by one are arranged, and the focal lengths of the zoom lens assemblies are synchronously adjusted through the transmission assemblies, so that the synchronous calibration function of multi-path optical fiber transmission is met; meanwhile, the diameter of the light spot is variable aiming at the optical fiber lines with different bandwidths, so that the maximum transmission efficiency is ensured.
Drawings
Fig. 1 is a schematic structural view of the entire optical fiber in this embodiment.
Fig. 2 is a schematic structural diagram of the entire zoom module in this embodiment.
Fig. 3 is an exploded view of the zoom lens assembly in this embodiment.
Fig. 4 is a schematic view of an assembly structure of the zoom lens assembly in this embodiment.
Fig. 5 is a zoom optical path diagram of the zoom module in the present embodiment.
In the figure: 100. a base; 200. an optical fiber line; 300. a zoom module; 310. a variable focus lens assembly; 311. a lens mount; 3111. a slide bar; 312. a light incident side fixed lens; 313. a first zoom lens; 3131. a first positioning button; 314. a second zoom lens; 3141. a second positioning knob; 320. a fixed lens assembly; 321. a light-emitting side fixed lens; 330. a transmission assembly; 331. a driving wheel; 332. a rack belt; 340. a laser emission source; 341. a vertical cavity surface emitting laser; 342. a mirror; 350. a cam ring; 351. a first sliding groove; 352. a second sliding groove; 353. a transmission gear; 360. a base body; 400. a photoelectric conversion module; 500. an electrical signal interface.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
In the description of the present invention, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," "disposed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the interconnection of two elements or through the interaction of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example (b): an active optical fiber line with continuously adjustable spot radius, as shown in fig. 1 and fig. 2, includes a base 100, a plurality of sets of optical fiber lines 200 disposed on the base 100, and a zoom module 300 correspondingly disposed on the optical fiber lines 200, where the zoom module 300 includes a plurality of sets of zoom lens assemblies 310 correspondingly disposed on the optical fiber lines 200, a fixed lens assembly 320 correspondingly disposed between the zoom lens assemblies 310 and the optical fiber lines 200, a transmission assembly 330 for synchronously adjusting focal lengths of the plurality of sets of zoom lens assemblies 310, and a laser emission source 340.
The base 100 is further provided with a photoelectric conversion module 400, a chip of the photoelectric conversion module 400 is integrated on the base 100, and the base 100 is further provided with an electrical signal interface 500 for electrical communication.
As shown in FIG. 2, the laser emitting source 340 includes a VCSEL 341 disposed at one end of the variable focus lens assembly 310 and a mirror 342 for reflecting laser light emitted from the VCSEL 341 into the variable focus lens assembly 310.
The laser beam emitted by the vertical cavity surface emitting laser does not undergo secondary optical path shaping, presents a larger divergence angle, and based on the influence of the numerical aperture of the first point optical fiber on the bandwidth, a collimating optical system needs to be designed to reduce the divergence angle. Meanwhile, the larger the diameter of the optical fiber mode field is, the larger the effective area of laser transmission is, which is more beneficial to improving the bandwidth. Therefore, the invention achieves the purpose of optical beam expanding collimation by arranging the zoom module, thereby meeting the synchronous calibration function of multi-path optical fiber transmission, which is as follows.
As shown in fig. 2 to 4, the fixed lens assembly 320, the transmission assembly 330 and the laser emitting source 340 are all disposed on a base 360, the vertical cavity surface emitting laser 341 patch is disposed on the base 360, and the reflector 342 is disposed at an angle of 45 degrees and is used for converting the vertical light emitted by the vertical cavity surface emitting laser 341 into horizontal light. Among them, the vertical cavity surface emitting laser 341 belongs to a chip component, and the top surface emits laser, because the mirror 342 needs to be placed and set at 45 degrees, the vertical light is converted into horizontal light.
The zoom lens assembly 310 comprises a lens base 311, an incident light side fixed lens 312, a first zoom lens 313 and a second zoom lens 314 which are arranged on the lens base 311, wherein the incident light side fixed lens 312, the first zoom lens 313 and the second zoom lens 314 are sequentially arranged, and the fixed lens assembly 320 comprises an emergent light side fixed lens 321 which is correspondingly arranged with the zoom lens assembly 310.
In the drawing of this embodiment, the light path direction is from left to right, and as can be seen from the drawing, the laser with the divergence angle passes through the zoom lens assembly 310 and the fixed lens assembly 320 and then becomes a wide collimated light beam, which is shown in fig. 5.
The zoom lens assembly 310 further comprises a cam ring 350 sleeved outside the first zoom lens 313 and the second zoom lens 314, wherein a first positioning button 3131 is arranged on the first zoom lens 313, a second positioning button 3141 is arranged on the second zoom lens 314, and a first sliding groove 351 which is slidably fitted with the first positioning button 3131 and spirally arranged and a second sliding groove 352 which is slidably fitted with the second positioning button 3141 and spirally arranged are arranged on the cam ring 350; the first sliding groove 351 and the second sliding groove 352 have opposite spiral directions, and when the cam rotates, the first zoom lens 313 and the second zoom lens 314 move toward each other.
The first zoom lens 313 is provided with three first positioning buttons 3131, the second zoom lens 314 is also provided with three second positioning buttons 3141, and the first positioning button 3131 and the second positioning button 3141 are both arranged in a cylindrical shape, so that the smooth degree in the sliding process is ensured.
In the sliding process of the first zoom lens 313 and the second zoom lens 314, the light-in side fixed lens 312 and the light-out side fixed lens 321 keep fixed positions. The light emitted by the laser of the existing optical fiber line 200 can only be collimated by simple reflection and a single lens, and the emergent angle is large, which is not beneficial to the light incidence and transmission of the end face of the optical fiber line 200. The light path collimation structure designed by the application can effectively control the light beam angle within 0.25mrad, and meets the requirement of the optical fiber numerical aperture.
A slide bar 3111 is disposed on the lens base 311, the slide bar 3111 is disposed along a length direction of the lens base 311, and the first zoom lens 313 and the second zoom lens 314 are both slidably connected to the slide bar 3111.
Wherein a pitch of the first sliding groove 351 is greater than a pitch of the second sliding groove 352. During zooming, the cam ring 350 rotates clockwise, so that the first zoom lens 313 and the second zoom lens 314 respectively move in a translation direction by the first sliding groove 351 and the second sliding groove 352, the translation direction is opposite movement, and the sliding amplitude of the first zoom lens 313 is larger than that of the second zoom lens 314. The specific translation distance and direction are set by zoom parameters, no specific parameters are given in this embodiment, the specific parameters can be set according to actual needs, and based on the parameter setting of the specific embodiment of the present invention, the zoom multiple is 3 times to 10 times.
The diameter of the light beam emitted by the laser of the existing optical fiber line 200 is basically fixed, and is not beneficial to aligning the light beam and the incident end face when the optical fiber line is assembled in the earlier stage, and the diameter of the mode field is also limited, so that the zoom system is designed, the diameter of the light beam is changed in a large multiple, and the light beam diameter is flexibly applied to the assembly convenience and the stability and the high speed of data transmission according to the practical application condition.
In this embodiment, a total of 4 fiber optic lines 200 are provided, wherein the actuator assembly 330 functions to synchronize the zooming of the 4 optical lines. A transmission gear 353 is arranged on the outer side wall of the cam ring 350, the transmission assembly 330 comprises a transmission wheel 331 arranged on one side of the variable focus lens assembly 310, and the transmission wheel 331 is connected with the transmission gear 353 through a rack belt 332. The number of the optical paths is not limited to 4 optical paths, and the optical paths can be changed at will, and the distance between the zoom lens assemblies 310 can be changed uniformly only by quantitatively increasing or decreasing the number of the zoom lens assemblies 310 and through the transmission wheels 331 and the cam rings 350.
In other embodiments of the invention the variable focus lens package may alternatively be a liquid variable focus medium, the refractive index and shape of which is changed by changing the electric field conditions. The zoom lens group can also select a lens group with a non-zoom function, and the beam expansion multiple is selected according to actual needs.
In summary, the zoom lens assemblies corresponding to the multiple groups of optical fiber lines one to one are arranged, and the focal lengths of the zoom lens assemblies are synchronously adjusted through the transmission assembly, so that the synchronous calibration function of multi-path optical fiber transmission is met; meanwhile, the diameter of the light spot is variable aiming at the optical fiber lines with different bandwidths, so that the maximum transmission efficiency is ensured.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (8)
1. The utility model provides an active fiber line of facula radius continuously adjustable which characterized in that: the zoom module comprises a plurality of groups of zoom lens components correspondingly arranged on the optical fiber lines, a fixed lens component correspondingly arranged between the zoom lens components and the optical fiber lines, a transmission component used for synchronously adjusting the focal lengths of the plurality of groups of zoom lens components and a laser emission source; the zoom lens assembly comprises a lens base, an incident side fixed lens, a first zoom lens and a second zoom lens, wherein the incident side fixed lens, the first zoom lens and the second zoom lens are arranged on the lens base in sequence;
the zoom lens assembly further comprises a cam ring sleeved outside the first zoom lens and the second zoom lens, a first positioning button is arranged on the first zoom lens, a second positioning button is arranged on the second zoom lens, and a first sliding groove which is in sliding fit with the first positioning button and is spirally arranged and a second sliding groove which is in sliding fit with the second positioning button and is spirally arranged are arranged on the cam ring; the spiral directions of the first sliding groove and the second sliding groove are opposite, when the cam ring rotates, the first zoom lens and the second zoom lens move oppositely, and the diameter of a light spot is variable for optical fiber lines with different bandwidths.
2. The active optical fiber line with continuously adjustable spot radius according to claim 1, wherein: the laser emission source comprises a vertical cavity surface emitting laser arranged at one end of the zoom lens component and a reflector used for reflecting laser emitted by the vertical cavity surface emitting laser into the zoom lens component.
3. The active optical fiber line with continuously adjustable spot radius according to claim 2, wherein: the fixed lens assembly, the transmission assembly and the laser emission source are all arranged on a base body, the vertical cavity surface emitting laser patch is arranged on the base body, and the reflector is arranged at an angle of 45 degrees and is used for converting vertical light rays emitted by the vertical cavity surface emitting laser into horizontal light rays.
4. The active optical fiber line with continuously adjustable spot radius according to claim 1, wherein: the thread pitch of the first sliding groove is larger than that of the second sliding groove.
5. The active optical fiber line with continuously adjustable spot radius according to claim 1, wherein: the zoom lens comprises a lens base and is characterized in that a sliding rod is arranged on the lens base, the sliding rod is arranged along the length direction of the lens base, and the first zoom lens and the second zoom lens are connected to the sliding rod in a sliding mode.
6. The active optical fiber line with continuously adjustable spot radius according to claim 1, wherein: the outer side wall of the cam ring is provided with a transmission gear, the transmission assembly comprises a transmission wheel arranged on one side of the zoom lens assembly, and the transmission wheel is connected with the transmission gear through a rack belt.
7. The active optical fiber line with the continuously adjustable spot radius according to claim 1, wherein: the base is further provided with a photoelectric conversion module, and a chip of the photoelectric conversion module is integrated on the base.
8. The active optical fiber line with the continuously adjustable spot radius according to claim 1, wherein: the base is further provided with an electric signal interface for electric communication.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011418848.8A CN112558241B (en) | 2020-12-07 | 2020-12-07 | Active optical fiber line with continuously adjustable light spot radius |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011418848.8A CN112558241B (en) | 2020-12-07 | 2020-12-07 | Active optical fiber line with continuously adjustable light spot radius |
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| CN112558241A CN112558241A (en) | 2021-03-26 |
| CN112558241B true CN112558241B (en) | 2023-03-24 |
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| CN114777055B (en) * | 2022-06-16 | 2022-10-04 | 北京市农林科学院智能装备技术研究中心 | Dynamic lighting system and light supply method for plant cultivation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI222605B (en) * | 1998-12-22 | 2004-10-21 | Che-Chih Tsao | Volumetric 3D image display techniques |
| JP2006506657A (en) * | 2002-03-14 | 2006-02-23 | エスエーイー・マグネティクス（エイチ・ケイ）リミテッド | Integrated platform for active optical alignment of semiconductor devices with optical fibers |
| CN202433088U (en) * | 2011-12-30 | 2012-09-12 | 深圳市新岸通讯技术有限公司 | Measuring device |
| CN102778739B (en) * | 2012-07-09 | 2014-05-21 | 秦皇岛视听机械研究所 | Zoom projection fish-eye lens generally used for digital projector |
| JP6459296B2 (en) * | 2014-08-20 | 2019-01-30 | 住友電気工業株式会社 | Light emitting module and multi-channel light emitting module |
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