CN2557964Y - Multi-light path alignment device - Google Patents
Multi-light path alignment device Download PDFInfo
- Publication number
- CN2557964Y CN2557964Y CN 02227678 CN02227678U CN2557964Y CN 2557964 Y CN2557964 Y CN 2557964Y CN 02227678 CN02227678 CN 02227678 CN 02227678 U CN02227678 U CN 02227678U CN 2557964 Y CN2557964 Y CN 2557964Y
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- optical fiber
- complex root
- collimator apparatus
- accommodation space
- lens
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Abstract
Disclosed is a multi-pass collimating equipment which can achieve transmission among multiple optical paths. The utility model comprises a plurality of input fibers, a first fiber holding device, an optical path coupling device, a second fiber holding device and a plurality of output fibers; wherein, the first and the second fiber holding devices respectively comprises a fiber stub which is arranged and fixed in a sleeve, and the fiber stub comprises a plurality of grooves which are respectively arranged in parallel with the optical axes of the plurality of input and output fibers, for respectively containing and holding the plurality of input and output fibers; the optical path coupling device is fixed and positioned between the first and the second fiber holding devices, including a first and a second collimating lenses; the plurality of input and output fibers are respectively positioned at the conjugate focuses of the combined two lenses. When in work, the first lens is coupled with the output beams of the input fibers to emit parallel beams in a certain angle, and the parallel beams in a certain angle are coupled by the second lens and focused in the corresponding particular output fibers, thereby multi-pass collimation is achieved.
Description
[affiliated technical field]
The utility model relates to a kind of beam path alignment device, especially a kind of multi-pass collimator apparatus of transmitting between multi-pass realized.
[background technology]
In the optical signal transmission process; often can use following optical system: the dispersed light of an optical fiber output is collimated parallel beam by a collimation collimated to obtain one; this collimate in parallel light beam is focused on to enter another Optical Fiber Transmission by another collimation lens again then, and such optical system is the light collimating device in the optical signal transmission process.Different optical modules such as wave filter, optoisolator, photomodulator, prism etc. all can be positioned to have the optical module of various difference in functionalitys with formation between two collimation lenses in this colimated light system.In order to realize transfer function between multi-pass, adopt the incompatible alternative single lens of a plurality of lens combination usually, the colimated light system with this function is referred to as the multi-pass collimator apparatus usually.
Shown in Figure 1 is a kind of multi-pass collimator apparatus that U.S. Patent application discloses for the 09/968th, No. 841.This multi-pass collimator apparatus 1 comprises first combination of lenses 10 and second combination of lenses 12, this is first years old, second combination of lenses 10,12 include a combination of lenses 13 that is fixed on the substrate 14, this combination of lenses 13 comprises plural lenses 15 and complex root optical fiber 16, this each root optical fiber 16 is directly fitted and is positioned the focal position of corresponding lens 15, and the plural lens 15 that are positioned on the same substrate 14 are arranged in parallel shoulder to shoulder along the vertical direction of lens axis (not indicating) each other, be positioned at that this is relative in twos respectively to lens on the substrate 14 15, and each to relative lens 15 optical axises on same straight line.
During work, the corresponding plural lenses 15 of complex root optical fiber 16 input light through fitting with it, be coupled respectively to another lens that are oppositely arranged 15 after another root optical fiber 16 outputs, light beam between these plural number lens are to 15 then is collimated plural parallel beam, in this parallel beam position, can insert different optical modules as required to realize different optical functions.But this multi-pass collimator apparatus utilizes a plurality of collimation lenses to combine with multifiber to reach multi-pass collimation purpose, and it utilizes assembly too much, and cost is too high, and bulky, is difficult to realize intensive installation and the integrated demand of modern optical.In addition, optical fiber 16 is directly fitted with lens 15, and optical fiber 16 is easy to come off from lens 15 end faces during use even during making, makes manufacture difficulty height and integral device poor stability.
[summary of the invention]
In order to overcome the shortcoming of existing multi-pass collimator apparatus cost height, bulky and stable difference, the utility model provides a kind of multi-pass collimator apparatus, and this multi-pass collimator apparatus cost is low, volume is little, stability is high.
The technical scheme in the invention for solving the technical problem is: it comprises complex root optical fiber, an at least one optical fiber holding unit and a light path coupling device, this optical fiber holding unit comprises an optical fiber contact pins, this optical fiber contact pins is provided with the accommodation space that holds fixing plural number optical fiber, this light path coupling device comprises two lens, these two combination of lensess form plural number to conjugate focus, complex root optical fiber is positioned to be positioned at the focal position of coupling device homonymy respectively, so that each output beam of these two these complex root optical fiber of Lens Coupling converges in the focal position of the opposite side of coupling device.
The beneficial effects of the utility model are, it is immobilizated in complex root optical fiber in the optical fiber contact pins, utilize the many optical characteristics that form between two lens to conjugation coupling focus, adjust each root optical fiber and be positioned a conjugation focal position respectively, only a pair of lens of need just can be realized the transmission between the multi-pass, use assembly few, save cost and device space, and plural optical fiber is immobilizated in the contact pin, and stability is strong.
[description of drawings]
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the stereographic map of existing multi-pass collimator apparatus.
Fig. 2 is the sectional view of first embodiment of the utility model multi-pass collimator apparatus.
Fig. 3 A, B, C figure are the sectional views of the different embodiments of optical fiber holding unit among Fig. 2.
Fig. 4 is the sectional view of second embodiment of the utility model multi-pass collimator apparatus.
Fig. 5 A to Fig. 5 D is the sectional view of the different embodiments of optical fiber holding unit among Fig. 4.
[embodiment]
In Fig. 1, multi-pass collimator apparatus 20 comprises complex root input optical fibre 240, complex root output optical fibre 242, first, second optical fiber holding unit 210,220 and a light path coupling device 230.This light path coupling device comprises that first, second lens 232,234 are fixed positioned between this first, second optical fiber holding unit 210,220, these first, second lens 232,234 are moulded lens (promptly integrally formed by transparent material), include an aspheric surface end face 236 and an inclined end face 237, these two aspheric surfaces end face, 236 located adjacent one another being oppositely arranged; This two inclined end face 237 respectively with this first, second optical fiber holding unit 210,220 relative and contiguous settings; This first, second optical fiber holding unit 210,220 has identical structure, it includes an outer tube 211, a sleeve pipe 212 and an optical fiber contact pins 213, this complex root input, output optical fibre 240,242 are immobilizated in respectively in this optical fiber contact pins 213, the tail end 244 of the band covering that includes a bare fibre tail end 243 and be attached thereto, these optical fiber contact pins 213 suits are fixed in this sleeve pipe 212, and this sleeve pipe 212 is fixed in this outer tube 213.
This optical fiber contact pins 213 is a cylindrical structure, comprises end face 214 vertical with optical axis and angled inclined end face 215, and this inclined end face 215 protrudes out the sleeve pipe 212 and the inclined end face 237 of parallel adjacent lenses with it 232,234 respectively.Please see Fig. 3 in the lump, this optical fiber contact pins 213 further comprises a through hole 216, this through hole 216 is parallel to the optical axis setting and can be one of following 3 kinds of structures: as Fig. 3 A, the outer wall 217 of this through hole 216 is a smooth face of cylinder, and bare fibre tail end 243 rules of optical fiber 240,242 closely are arranged in the through hole 216; As Fig. 3 B, this outer wall 217 is provided with the arc groove 218 that complex root matches with the optical fiber curved surface, and bare fibre tail end 243 parts of optical fiber 240,242 are placed in this groove 218, and part is placed in the through hole 216; As Fig. 3 C, be arranged with plural V-arrangement or U-lag 219 in parallel with optical axis on this outer wall 217, bare fibre tail end 243 overwhelming majority of optical fiber 240,242 or all be immobilizated in the V-shaped groove 219, in above-mentioned three kinds of contact pin structures, the space that plural number optical fiber 240,242 and through hole are 216 all is full of glue (figure does not show), and the tail end 344 of its band covering is adhesively fixed due to optical fiber contact pins perpendicular end surface 214 places, thereby makes optical fiber 240,242 stable being immobilizated in the optical fiber contact pins 213.
Please see Figure 4, multi-pass collimator apparatus 30 comprises complex root input optical fibre 340, output optical fibre 342, first, second optical fiber holding unit 310,320 and a light path coupling device 330.This light path coupling device comprises that first, second lens 332,334 are fixed positioned between this first, second optical fiber holding unit 310,320, these first, second lens 332,334 are moulded lens, include an aspheric surface end face 336 and a little curved surface 337, this two aspheric surfaces end face 336 is contiguous toward each other to be provided with; Relative with this first, second optical fiber holding unit respectively and contiguous setting of this little curved surface 337.
The identical structure of these first, second optical fiber holding unit 310,320 tools includes a sleeve pipe 311, an optical fiber contact pins 312 and a holding parts 313, this holding parts 313 comprises a ring cylinder accommodation space (not indicating), this accommodation space is parallel to the accommodation space (detailed aftermentioned) of sleeve pipe 311 and 312 formation of contact pin, this holding parts 313 can be integrally formed with this optical fiber contact pins 312, also can make and weld or be pasted on the end face of contact pin 312 separately; The band covering tail end 344 that this plural number input, output optical fibre 340,342 include a bare fibre tail end 343 and be attached thereto, this bare fibre tail end 343 is immobilizated in the accommodation space of 311 of contact pin 312 and sleeve pipes, the tail end 344 of this band covering is immobilizated in the ring cylinder accommodation space of this holding parts 313, avoids damaging with protection optical fiber; These optical fiber contact pins 312 suits are fixed in this sleeve pipe 311.
5A to figure five D please in the lump with the aid of pictures, the accommodation space that this optical fiber contact pins 312 and this sleeve pipe are 311 can be one of following 4 kinds of structures, as Fig. 5 A, sleeve pipe 311 inwalls 313 are the smooth face of cylinder with the outer wall 314 of contact pin 312, this two cylindrical surface forms the ring cylinder accommodation space (not indicating) that a thickness is slightly larger than fibre diameter at interval, and the bare fibre tail end 343 of optical fiber 340,342 is immobilizated in this ring cylinder accommodation space; As the 5th B figure, inwall 313 is the smooth face of cylinder, and outer wall 314 upper edge optical axis directions are provided with plural V-arrangement or U-shaped groove 315, and the bare fibre tail end 343 of optical fiber 340,342 is immobilizated in this groove 315; As Fig. 5 C, all be provided with plural V-shaped groove 316 on sleeve pipe 311 inwalls 313 and contact pin 312 outer walls 314 along the optical axis direction, and should cooperate the location in pairs respectively and form plural accommodation space (not indicating) by plural number V-shaped groove 316, the bare fibre tail end 343 of optical fiber 340,342 is immobilizated in this accommodation space; As Fig. 5 D, all be provided with the arc groove 317 that plural number matches with the optical fiber curved surface on inwall 313 and the outer wall 314 along optical axis direction, and this arc groove 317 cooperates the location respectively in pairs, optical fiber 340,342 bare fibre tail end 343 is immobilizated in the accommodation space (indicating) of every pair of arc groove formation, in above-mentioned four kinds of structures, bare fibre tail end 343 and inwall 313, the equal filling glue in the space that outer wall is 314 (figure does not show), and also filling glue (scheming not show) between the ring cylinder accommodation space of tail end 344 and the holding parts 3 13 of band covering, thereby make optical fiber 340, the 342 stable optical fiber holding units 310 that are immobilizated in, in 320.
Please see Fig. 2 and Fig. 4 simultaneously, optical characteristics and conjugation coupling principle according to moulded lens, when making the utility model multi-pass collimator apparatus, lens 232 and 234, the combination of lenses that the constant formation one of 332 and 334 stationkeeping is fixed, adjust each to input, output optical fibre 240 and 242,340 and 342 are positioned combination of lenses 232 and 234 respectively, on the focus of 332 and 334 two ends conjugation, then input optical fibre 240,340 output dispersed light are through lens 232,332 are coupled into the parallel beam of certain angle, this parallel beam is via lens 234,334 are focused and enter corresponding output optical fibre 242, in 342, thereby realize the multi-pass collimation.
Multi-pass collimator apparatus of the present utility model is integrated in fixing in the single optical fiber contact pins with multifiber, perhaps by cooperating to come the fixing multifiber between single sleeve pipe and the single contact pin, only a pair of combination of lenses of need can reach the effect that the prior art need just can be reached with a plurality of combination of lensess, compact conformation is intensive, adapt to the integrated needs of contemporary optics, and save number of components direct saving manufacturing cost.And, the lens of multi-pass collimator apparatus of the present utility model are not limited to moulded lens, other optical device with collimated light path function as GRIN Lens (GRIN Lens), optical lens, C-Lens etc. all applicable to the utility model, and, but optical fiber holding unit 210,310,220,320 combination in any during essence is used in the multi-pass collimator apparatus of the present utility model are used, and also can use one of them to be used in combination with other optical fiber holding structure to reach the effect of multi-pass transmission.
Claims (10)
1. multi-pass collimator apparatus, comprise complex root optical fiber, an one optical fiber holding unit and a light path coupling device, it is characterized in that: this optical fiber holding unit comprises an optical fiber contact pins, this optical fiber contact pins is provided with plural accommodation space, plural number optical fiber holds and is immobilizated in the accommodation space, this light path coupling device comprises two lens, these two combination of lensess form plural number to conjugate focus, complex root optical fiber is positioned the focal position of coupling device homonymy respectively, so that each output beam of these two these complex root optical fiber of Lens Coupling converges in the focal position of the opposite side of coupling device.
2. multi-pass collimator apparatus according to claim 1 is characterized in that: this accommodation space is a series of V-shaped grooves that are positioned at the center of this contact pin, and complex root optical fiber glue is fixed in the V-shaped groove.
3. multi-pass collimator apparatus according to claim 1 is characterized in that: this accommodation space is a series of U-lags that are positioned at the center of this contact pin, and complex root optical fiber glue is fixed in the U-lag.
4. multi-pass collimator apparatus according to claim 1 is characterized in that: this accommodation space is a through hole, and this through hole outer wall is provided with the arc grooves that a series of and optical fiber curved surface match, and complex root optical fiber glue is fixed in the through hole.
5. multi-pass collimator apparatus according to claim 1 is characterized in that: this optical fiber holding unit further comprises the tail end of a holding parts with this complex root fibre ribbon covering of fixing, and the bare fibre tail end of this complex root optical fiber is immobilizated in this contact pin.
6. multi-pass collimator apparatus according to claim 1 is characterized in that: this optical fiber holding unit further comprises a hollow circular cylinder sleeve pipe, and this optical fiber contact pins is a cylindrical structure and is set in the sleeve pipe that this accommodation space is positioned periphery.
7. multi-pass collimator apparatus according to claim 6 is characterized in that: this accommodation space is a series of U-lags, and complex root optical fiber glue is fixed in the space of contact pin outside surface and internal surface of sleeve pipe formation.
8. multi-pass collimator apparatus according to claim 6 is characterized in that: this accommodation space is a series of V-shaped grooves, and complex root optical fiber glue is fixed in the space of contact pin outside surface and internal surface of sleeve pipe formation.
9. multi-pass collimator apparatus according to claim 6, it is characterized in that: this accommodation space is a series of arc grooves that match with the optical fiber curved surface, this internal surface of casing comprises a series of and this arc groove groove opposite, and complex root optical fiber glue is fixed in the space of contact pin outside surface and internal surface of sleeve pipe formation.
10. multi-pass collimator apparatus according to claim 1 is characterized in that: it further comprises an optical fiber holding unit, and this optical fiber holding unit comprises that a fixing has the optical fiber contact pins of complex root optical fiber, and it is positioned at two lens opposite side focal positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02227678 CN2557964Y (en) | 2002-05-20 | 2002-05-20 | Multi-light path alignment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02227678 CN2557964Y (en) | 2002-05-20 | 2002-05-20 | Multi-light path alignment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2557964Y true CN2557964Y (en) | 2003-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02227678 Expired - Fee Related CN2557964Y (en) | 2002-05-20 | 2002-05-20 | Multi-light path alignment device |
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| CN (1) | CN2557964Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308976A (en) * | 2012-03-15 | 2013-09-18 | 奥兰若技术有限公司 | Optical fiber assembly and manufacturing method thereof |
| CN103439796A (en) * | 2013-09-03 | 2013-12-11 | 武汉正光恒远科技有限公司 | System used for multi-optical-path input and multi-optical-path output |
| CN106018278A (en) * | 2016-07-11 | 2016-10-12 | 上海爱涛信息科技有限公司 | Miniaturized photoelectric module for fluorescence detection |
| CN106814437A (en) * | 2015-11-30 | 2017-06-09 | 东莞酷派软件技术有限公司 | A kind of camera head and its manufacture method, mobile terminal |
| CN109521526A (en) * | 2018-12-26 | 2019-03-26 | 桂林市啄木鸟医疗器械有限公司 | A kind of optical path exchanging structure on the laser therapeutic equipment handle of oral cavity |
| CN113114358A (en) * | 2021-03-24 | 2021-07-13 | 中航光电科技股份有限公司 | Large-offset optical contact, optical interconnection assembly and long-distance space optical communication system |
-
2002
- 2002-05-20 CN CN 02227678 patent/CN2557964Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308976A (en) * | 2012-03-15 | 2013-09-18 | 奥兰若技术有限公司 | Optical fiber assembly and manufacturing method thereof |
| CN103439796A (en) * | 2013-09-03 | 2013-12-11 | 武汉正光恒远科技有限公司 | System used for multi-optical-path input and multi-optical-path output |
| CN103439796B (en) * | 2013-09-03 | 2015-06-03 | 武汉正光恒远科技有限公司 | System used for multi-optical-path input and multi-optical-path output |
| CN106814437A (en) * | 2015-11-30 | 2017-06-09 | 东莞酷派软件技术有限公司 | A kind of camera head and its manufacture method, mobile terminal |
| CN106018278A (en) * | 2016-07-11 | 2016-10-12 | 上海爱涛信息科技有限公司 | Miniaturized photoelectric module for fluorescence detection |
| CN109521526A (en) * | 2018-12-26 | 2019-03-26 | 桂林市啄木鸟医疗器械有限公司 | A kind of optical path exchanging structure on the laser therapeutic equipment handle of oral cavity |
| CN113114358A (en) * | 2021-03-24 | 2021-07-13 | 中航光电科技股份有限公司 | Large-offset optical contact, optical interconnection assembly and long-distance space optical communication system |
| CN113114358B (en) * | 2021-03-24 | 2022-03-29 | 中航光电科技股份有限公司 | Large-offset optical contact, optical interconnection assembly and long-distance space optical communication system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |