CN2525540Y - Electric control mechanical light switch - Google Patents
Electric control mechanical light switch Download PDFInfo
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- CN2525540Y CN2525540Y CN 01253678 CN01253678U CN2525540Y CN 2525540 Y CN2525540 Y CN 2525540Y CN 01253678 CN01253678 CN 01253678 CN 01253678 U CN01253678 U CN 01253678U CN 2525540 Y CN2525540 Y CN 2525540Y
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- prism
- collimating apparatus
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- pedestal
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Abstract
The utility model relates to an electric control mechanical light switch mainly used for exchanging light signal in an optical communication system, an optical fibre network system, an optical fibre measuring system or an apparatus and an optical fibre sensing system. The utility model comprises a fixed prism and collimator gripping devices opposite to the inclined plane of the fixed prism, wherein, all the two-way emergent collimators and one-way or two-way incident collimators are arranged in parallel inside the same collimator gripping device along a central axial line; a relay is used to control light path shift-in or shift-out of a movable prism; the movable prism and the fixed prism are both total reflecting right angled isosceles prism; an inclined plane of the total reflecting right angled isosceles prism is a light incident face coated with an anti-reflection film; two right angled surfaces of the total reflecting right angled isosceles prism are reflecting surfaces; and two right angled ridges of the movable prism and the fixed prism are orthogonal in light paths. Compared with the prior art, the utility model has short switching time which can reach 6 milliseconds. Moreover, the utility model has the advantages of low insertion loss, good repeatability, no mutual interference of the light paths when the electric control mechanical light switch is adjusted, and convenience in spatial distribution because an input end and an output end are arranged on one side.
Description
Technical field:
The utility model relates to a kind of electric-controlled mechanical photoswitch, is mainly used in the exchange of the light signal in optical communication system, optical fiber network system, optical fiber measurement system or instrument and the optical fiber sensing system.
Background technology:
In optical fiber network system, transmission of Information is to realize by the transmission of light signal in optical fiber.Though transmission and electric signal the transmission in plain conductor of light signal in optical fiber has certain similarity, however well-known be to switch to the different output optical fibres light signal more much more difficult by the switching of electronic switch from input optical fibre than electric signal.
Can realize easily when electric signal transmits in plain conductor connecting, and light signal will enter output optical fibre from input optical fibre point-device coupling must be arranged, otherwise the loss of light intensity will be very serious.The xsect of the single-mode fiber that generally uses in optical network system is very little now, its core diameter only is about 9 microns, and its receivable angle (numerical aperture) is also very little, and in order to ensure transfer efficiency, incident light must be positioned in the numerical aperture of fibre core.Therefore, be used for that the photoswitch that input light switches to different output ports must be had very high precision.
Because the application of photoswitch is very extensive, in technology formerly, the patents of invention about photoswitch are arranged a lot.U.S. Pat 4589726, " the rotary photoswitch " that provides, this patent is mainly used in two tunnel input light and two tunnel output light (2 * 2) photoswitches, one right-angle prism rotation, 90 degree is finished the switching of light path with stepper motor.This invention exists the following problem, at first is that the switch speed of stepper motor is very slow, and switching time is usually more than 15 milliseconds, and Modern Communication System to the requirement of photoswitch switching time usually below 10 milliseconds; Secondly a prism has only been adopted in this invention, in adjustment, exist the problem that very thorny light path is interfered mutually, because the switching of light path is to guarantee by the rotation of prism on orthogonal both direction, after adjusting what a direction, just be difficult to guarantee the coupling of light path on another direction, and the adjustment of light path expends time in very much, therefore should invention have very big problem on manufacturability.
U.S. Pat 5436986, " equipment and the method that are used for signal exchange between the optical fiber " that provides, this invention by the isosceles right-angle prism of two relative right angle faces plating reflectance coatings immigration and shift out light path and realize the light signal exchange.In this invention, because a prism must be between two GRIN Lens when prism shifts out light path, therefore the relative broad of distance between two GRIN Lens, it is very big that thereby the size that causes whole switch becomes, and can not satisfy the Modern Communication System demand more and more littler to the switch dimensional requirement; Secondly, each prism need plate the cost that high-reflecting film has increased switch in this invention on two right angle faces; In addition, the input end of light signal and output terminal are positioned at the both sides of switch in this invention, are not easy in the optical communication system integrated to switch.
Summary of the invention:
Electric-controlled mechanical photoswitch of the present utility model includes substrate 1, is equipped with pedestal 12 and relay 11 on substrate 1, is fixed with fixed prism pedestal 8 on pedestal 12, is equipped with the fixed prism 7 of isosceles right-angle prism shape on fixed prism pedestal 8.On pedestal 12, the inclined-plane that faces toward fixed prism 7 is fixed with collimating apparatus anchor clamps 5.In collimating apparatus anchor clamps 5, be equipped with the first incident collimating apparatus 3, shown in Fig. 1,2 and 3.Perhaps be equipped with the first incident collimating apparatus 3 and the second incident collimating apparatus 13 shown in Fig. 4,5 and 6.In collimating apparatus anchor clamps 5, also be equipped with the first outgoing collimating apparatus 4 and the second outgoing collimating apparatus 2 simultaneously.All collimating apparatuss comprise that the central axis of the first incident collimating apparatus 3, the second incident collimating apparatus 13, the first outgoing collimating apparatus 4 and the second outgoing collimating apparatus 2 all is parallel to each other, and all perpendicular to the inclined-plane of fixed prism 7.On pedestal 12, also be fixed with doorframe shape plate washer 10.Have a semi-girder 9 one ends to be fixed on the relay 11, pass in the doorframe by doorframe shape plate washer 10, the other end is fixed with the movable prism 6 of isosceles right-angle prism shape.When movable prism 6 placed light path, movable prism 6 was to insert between collimating apparatus anchor clamps 5 and fixed prism 7, and the inclined-plane of movable prism 6 is facing to collimating apparatus anchor clamps 5, and is vertical with 13 central axis with above-mentioned each collimating apparatus 2,3,4.The right angle crest line of movable prism 6 is perpendicular to the right angle crest line of fixed prism 7.Shown in Fig. 1,2,3,4,5 and 6.
Said fixed prism 7 and movable prism 6 all are isosceles right-angle prism shapes, and their inclined-plane is a light entrance face, all is coated with anti-reflection film.Two right-angle planes are reflecting surface.Be the total reflection characteristic of utilizing isosceles right-angle prism in the utility model, it is the position of the angle of total reflection to incident beam that movable prism 6 and fixed prism 7 are seated in two right-angle planes.Can certainly on two right-angle planes, be coated with reflection enhancing coating, but so just increase manufacturing cost.
Above said movable prism 6 be to be fixed on the end of semi-girder 9, the other end of semi-girder 9 is fixed on the relay 11, by the adhesive or the disconnection of relay 11, make semi-girder 9 fall or lift, drive activity prism 6 falls into light path in vertical direction or leaves light path.It is cantilever structure that this structure can be called.Also can be another kind of push-pull structure, on the pedestal 12 between collimating apparatus anchor clamps 5 and the fixed prism 7, be equipped with guide rail, on guide rail, be equipped with the slide block that drives by relay, movable prism 6 is seated on the slide block.When relay adhesive or disconnection, make slide block on guide rail, move around, move into light paths with the movable prism on the slide block 6, or shift out light path.
The described structure of following detailed description.
1. 1 * 2 electric-controlled mechanical photoswitch
Said 1 * 2 be exactly one the tunnel be the input light, have two the tunnel output light.The structure of 1 * 2 electric-controlled mechanical photoswitch of the present utility model such as Fig. 1, Fig. 2, shown in Figure 3, it comprises: substrate 1 places pedestal 12 and relay 11 on the substrate 1; Place pedestal 12 left sides (by direction as shown) that collimating apparatus anchor clamps 5 are arranged, place pedestal 12 rear sides that fixed prism pedestal 8 is arranged, placing has doorframe shape baffle plate 10 on the pedestal 12; There is an end to be fixed in semi-girder 9 on the relay 11; Placing has the first incident collimating apparatus 3 in the collimating apparatus anchor clamps 5, the first outgoing collimating apparatus 4 and the second outgoing collimating apparatus 2 that parallel with the first incident collimating apparatus, 3 central axis are arranged; Place fixed prism 7 is arranged on the fixed prism pedestal 8; The other end that is fixed in semi-girder 9 has movable prism 6.
As Fig. 2, shown in Figure 3, after relay 11 energisings, the movable prism 6 that the magnetic force adhesive movable terminal that the coil of relay 11 produces drives semi-girder 4 other ends inserts in the light path.Incident light is through the inclined-plane incident of the first incident collimating apparatus 3 from movable prism 6 at this moment, and through the first right angle face of movable prism 6 and twice total reflection of the second right angle face, light beam passes the inclined-plane of movable prism 6 once more, and through 2 outgoing of the second outgoing collimating apparatus.
As shown in Figure 1, after relay 11 outages, the electromagnetic force that relay 11 is kept the adhesive effect disappears, and reed drives the movable terminal bounce-back, thereby the movable prism 6 that drives semi-girder 9 other ends shifts out light path.At this moment, incident light passes the inclined-plane incident of fixed prism 7 through the first incident collimating apparatus 3, through the first right angle face of fixed prism 7 and twice total reflection of the second right angle face, light beam passes the inclined-plane of fixed prism 7 once more on vertical plane, and through 4 outgoing of the first outgoing collimating apparatus.When semi-girder 9 is upspring,, be unlikely by the impulse force of upspringing and damage semi-girder 9 and movable prism 6 because of the doorframe retaining jail of doorframe shape baffle plate 10 is arranged.And make the distance that semi-girder 9 upsprings short, when relay 11 once more during adhesive, can return rapidly.
2. 2 * 2 electric-controlled mechanical photoswitches
Said 2 * 2 promptly is that input has two road light, and output also has two road light.The structure diagram of 2 * 2 electric-controlled mechanical photoswitches of the present utility model such as Fig. 4, Fig. 5, shown in Figure 6, it is included as above-mentioned, and substrate 1 is arranged, and placing has pedestal 12 and relay 11 on the substrate 1; Placing has collimating apparatus anchor clamps 5 on the pedestal 12, placing has fixed prism pedestal 7 on the pedestal 12, and being fixed in has doorframe shape baffle plate 10 on the pedestal 12; One end is fixed in the semi-girder 9 on the relay 11, and placing has fixed prism 7 on the fixed prism pedestal 7; Be fixed in semi-girder 4 other ends movable prism 6 is arranged.Different is with the structure of above-mentioned 1 * 2 electric-controlled mechanical photoswitch, in collimating apparatus anchor clamps 5, except the first incident collimating apparatus 3, the first outgoing collimating apparatus 4 and the second outgoing collimating apparatus 2 that central axis is parallel to each other arranged, the second incident collimating apparatus 13 that also has central axis and above-mentioned collimating apparatus 3,4,2 central axis to be parallel to each other.First, second two incident collimating apparatus 3,13 makes incident light become parallel beam and injects movable prism 6 or fixed prism 7 shown in Fig. 4,5,6; First, second two outgoing collimating apparatus 4,2 assembles outgoing beam, to avoid producing the loss of dispersing.
As Fig. 5, shown in Figure 6, after relay 11 energisings, the movable prism 6 that the magnetic force adhesive that coil produces drives semi-girder 9 other ends inserts in the light path.This moment first, the bundle incident light was through the inclined-plane incident of the first incident collimating apparatus 3 from movable prism 6, priority is through the first right angle face of movable prism 6 and twice total reflection of the second right angle face on surface level, light beam passes the inclined-plane of movable prism 6 once more, and through 2 outgoing of the second outgoing collimating apparatus; Meanwhile, the second bundle incident light is through the inclined-plane incident of the second incident collimating apparatus 13 from movable prism 6, priority is through the second right angle face of movable prism 6 and twice total reflection of the first right angle face on surface level, light beam passes the inclined-plane of movable prism 6 once more, and through 4 outgoing of the first outgoing collimating apparatus.
As shown in Figure 4, after relay 11 outages, the electromagnetic force that relay 11 is kept the adhesive effect disappears, and reed drives the movable terminal bounce-back, thereby the movable prism 6 that drives semi-girder 9 other ends shifts out light path.At this moment, the first bundle incident light passes fixed prism 6 through the first incident collimating apparatus 3 inclined-plane incident, through the first right angle face of fixed prism 7 and twice total reflection of the second right angle face, light beam passes the inclined-plane of fixed prism 7 once more on vertical plane, and through 4 outgoing of the first outgoing collimating apparatus; Meanwhile, the second bundle incident light passes fixed prism 7 through the second incident collimating apparatus 13 inclined-plane incident, priority is through the second right angle face of fixed prism 7 and twice total reflection of the first right angle face on vertical plane, light beam passes the inclined-plane of fixed prism 7 once more, and through 2 outgoing of the second outgoing collimating apparatus.
The driving of the movable prism 6 of the utility model 1 * 2,2 * 2 electric-controlled mechanical photoswitches can also realize by the one dimension precise guide rail as mentioned above, is exactly push-pull structure recited above.Placing has movable prism 6 on the one dimension precise guide rail slide block, slide block moving back and forth on guide rail driven by relay.When slide block is pushed to a side of guide rail under the driving of the magnetic force of relay, movable prism 6 moves into light paths; When external direct current power supply provided reverse impulse, the electromagnetic force that relay produces was reverse, and slide block is pushed to the opposite side of guide rail, and movable prism 6 shifts out light path, thereby had realized that the photoswitch as above-mentioned 1 * 2,2 * 2 switches.
The utility model has adopted two isosceles right angle total reflection prisms as movable prism 6 and fixed prism 7, utilizes the total reflection principle of two right-angle planes of right-angle prism to realize the exchange of light path.It is simple and reasonable.Compare with the invention of technology United States Patent (USP) 4589726 formerly, the utility model is owing to adopted Electromagnetic Drive activity prism short switching time, and can reach 6 milliseconds typical switching time, and only be 10 milliseconds maximum switching time.The insertion loss is low, good reproducibility, return loss height.And the light path switching easily, and is easy to operate; The utility model is owing to adopted two total reflection prisms, and a structure fixing, an activity has solved the mutual interference problem when beam path alignment well, and the adjustment time is short, and production efficiency is greatly improved.Compare with technology United States Patent (USP) 5436986 formerly, only to need at inclined-plane coating anti reflection film be anti-reflection film to each prism in the utility model, provides cost savings; Secondly, the distance in the utility model between each collimating apparatus 2,3,4,13 is very little, and compact conformation has reduced the size of switch; Also have the utility model that all incident collimating apparatuss 3,13 and outgoing collimating apparatus 4,2 are all inserted in the collimating apparatus anchor clamps 5, be that incident end and exit end are in a side, not only optimize space layout, further given prominence to compact conformation, advantage that size is little, be convenient to very much the integrated of system.
Description of drawings:
Fig. 1. lead to the general illustration of light time at fixed prism 7 for 1 * 2 electric-controlled mechanical photoswitch of the present utility model
Fig. 2. be the general illustration of 1 * 2 electric-controlled mechanical photoswitch of the present utility model in the movable 6 logical light time of prism
Fig. 3. be the decomposing schematic representation of 1 * 2 electric-controlled mechanical photoswitch of the present utility model in the movable 6 logical light time of prism
Fig. 4. lead to the general illustration of light time at fixed prism 7 for 2 * 2 electric-controlled mechanical photoswitches of the present utility model
Fig. 5. be the general illustration of 2 * 2 electric-controlled mechanical photoswitches of the present utility model in the movable 6 logical light time of prism
Fig. 6. be the decomposing schematic representation of 2 * 2 electric-controlled mechanical photoswitches of the present utility model in the movable 6 logical light time of prism
Embodiment:
Shown in above-mentioned structure and Fig. 1,2,3,4,5,6.Its repeat circuit 11 is a single-pole double-throw (SPDT), and rated voltage is 5 volts, and rated current is 40 milliamperes.Movable prism 6 and fixed prism 7 are the isosceles right angle total reflection prism that K9 glass is made, inclined-plane plating anti-reflection film.The electric-controlled mechanical photoswitch of said structure 1 * 2,2 * 2 is dropped in actual the use.Be applied in the light top and bottom path module (OADM) of optical communication system.The characteristic dimension of the utility model optical switch construction is that length is 45 millimeters, 18 millimeters of width, 14 millimeters of height, ideal format is: be 8 milliseconds switching time, inserts loss less than 0.6 decibel (dB), switches repeatability ± 0.03dB, return loss is greater than 62dB, but expected service life 107 times.These data have proved that fully photoswitch of the present utility model has obvious improvement than the photoswitch of technology formerly.
Claims (3)
1. electric-controlled mechanical photoswitch comprises:
＜1〉substrate (1) is arranged, on substrate (1), be equipped with pedestal (12), on pedestal (12), be fixed with fixed prism pedestal (8), on fixed prism pedestal (8), be equipped with the fixed prism (7) of isosceles right-angle prism shape;
＜2〉be fixed with collimating apparatus anchor clamps (5) on the inclined-plane that pedestal (12) is gone up facing to fixed prism (7), be built-in with the first incident collimating apparatus (3) at collimating apparatus anchor clamps (5), perhaps the first incident collimating apparatus (3) and the second incident collimating apparatus (13);
It is characterized in that:
＜3〉in the collimating apparatus anchor clamps (5) on pedestal (12), also be equipped with the first outgoing collimating apparatus (4) and the second outgoing collimating apparatus (2), the central axis of the said first incident collimating apparatus (3), the second incident collimating apparatus (13), the first outgoing collimating apparatus (4) and the second outgoing collimating apparatus (2) is parallel to each other, and all perpendicular to the inclined-plane of fixed prism (7);
＜4〉on pedestal (12), be fixed with doorframe shape plate washer (10), on substrate (1), be equipped with relay (11), have a semi-girder (9) one ends to be fixed on the relay (11), pass in the doorframe by doorframe shape plate washer (10), the other end is fixed with the movable prism (6) of isosceles right-angle prism shape;
＜5〉when movable prism (6) when placing light path, movable prism (6) is to be seated between collimating apparatus anchor clamps (5) and the fixed prism (7), the inclined-plane of movable prism (6) is facing to collimating apparatus anchor clamps (5), vertical with the central axis of above-mentioned each collimating apparatus (2,3,4,13), and the right angle crest line of movable prism (6) is perpendicular to the right angle crest line of fixed prism (7).
2. electric-controlled mechanical photoswitch according to claim 1 is characterized in that the fixed prism (7) of said isosceles right-angle prism shape and the inclined-plane of movable prism (6) are that transparent surface all is coated with anti-reflection film, and two right-angle planes are reflecting surface.
3. electric-controlled mechanical photoswitch according to claim 1, it is characterized in that said movable prism (6) or be placed on the slide block on the guide rail, slide block is under the driving of relay, on guide rail, move around, drive activity prism (6) moves into light path or shifts out light path, and guide rail is on the pedestal (12) that places between collimating apparatus anchor clamps (5) and the fixed prism (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01253678 CN2525540Y (en) | 2001-09-14 | 2001-09-14 | Electric control mechanical light switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01253678 CN2525540Y (en) | 2001-09-14 | 2001-09-14 | Electric control mechanical light switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2525540Y true CN2525540Y (en) | 2002-12-11 |
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ID=33663129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01253678 Expired - Fee Related CN2525540Y (en) | 2001-09-14 | 2001-09-14 | Electric control mechanical light switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2525540Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101510486B (en) * | 2009-03-24 | 2011-01-05 | 中北大学 | Micro actuation switch |
| CN102411202A (en) * | 2011-10-24 | 2012-04-11 | 山西大学 | Ultra-silent mechanical free-space switching optical switch device |
| CN110045516A (en) * | 2019-04-22 | 2019-07-23 | 北京科益虹源光电技术有限公司 | A kind of lens adjustment device for excimer laser |
-
2001
- 2001-09-14 CN CN 01253678 patent/CN2525540Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101510486B (en) * | 2009-03-24 | 2011-01-05 | 中北大学 | Micro actuation switch |
| CN102411202A (en) * | 2011-10-24 | 2012-04-11 | 山西大学 | Ultra-silent mechanical free-space switching optical switch device |
| CN110045516A (en) * | 2019-04-22 | 2019-07-23 | 北京科益虹源光电技术有限公司 | A kind of lens adjustment device for excimer laser |
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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 |