CN106969710A - It is easy to the stable type optical splitter of detection - Google Patents
It is easy to the stable type optical splitter of detection Download PDFInfo
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- CN106969710A CN106969710A CN201710386861.1A CN201710386861A CN106969710A CN 106969710 A CN106969710 A CN 106969710A CN 201710386861 A CN201710386861 A CN 201710386861A CN 106969710 A CN106969710 A CN 106969710A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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Abstract
The present invention relates to the stable type optical splitter for being easy to detection, including motor, light barrier holder, the grating being fixed on light barrier holder, the electric machine controller for controlled motor, it is fixed on light barrier holder top and positioned at the back to zero piece on grating top, the optocoupler being arranged on above back to zero piece and two plane mirrors and concave mirror that are arranged on bottom plate；Entrance slit and exit slit are respectively arranged with bottom plate；Light barrier holder is provided with locating slot, it is provided with deck and positioning hole, positioning hole with four edges in the middle part of locating slot and is provided with snap ring, grating side is provided with positioning table, card column and locating dowel are respectively arranged with the middle part of positioning table with four edges, locating dowel circumference is provided with annular groove；Cavity is left between positioning table and annular groove, bonding agent is filled with the cavity.The light-dividing device also includes the Grating examinations device that entrance slit homonymy is located on bottom plate.The present invention improves the stability and reliability of grating, and automatic Grating examinations can be achieved.
Description
Technical field
The present invention relates to light-dividing device, belong to field of optical equipment, it is more particularly related to which one kind is easy to detection
Stable type optical splitter.
Background technology
Biochemical Analyzer is frequency of use highest, detection range most one of wide, most representational equipment in medical test,
It with it is quick, accurate, portable the advantages of in situation of all-level hospitals have critically important status.Due to Biochemical Analyzer detection when
Wait, mainly have the material of specific absorbance using generation after reagent and serum or reaction of blood, then export single by light-dividing device
The monochromatic light of one wavelength, the above-mentioned reacted product of the monochromatic light exposure simultaneously passes through the change of Instrumental Analysis absorbance or absorbance
Change to judge tested serum or blood sample whether certain medical science project is exceeded, so that it is determined that whether life entity is healthy, therefore,
When carrying out biochemical analysis, light-dividing device can be all applied to.
In Application No. " CN200920078935.6 ", a kind of entitled " grating type point directly driven by stepper motor
In the patent of electro-optical device ", the grating-type light-splitting device directly driven by stepper motor is disclosed, wavelength setting can not only be shortened
There is no Mechanical Contact outside time, and moving component in addition to motor, without frictional force, can guarantee that monochromatic light output is accurate and inspection
Survey the reliability of result.The patent mainly solves the inaccurate technical problem of monochromatic light output, and it is overall to improve device
Stability and reliability, still, grating is to be bonded in light barrier holder side by bonded adhesives in the patent, and is used substantially
Artificial bonding, this, which results in grating and position in installation process, is forbidden, and causes during follow-up use grating deviation occur and shadow
Ring accuracy；Secondly, during artificial bonding when extruding grating compression, due also to the problem of manpower is uneven so that grating inclines
Tiltedly, causing grating to occur in follow-up light splitting, light splitting is uneven and incomplete situation；Finally, due to use bonded adhesives progress
Bonding, when temperature is too high when in use for device, is bonded gum softening, causes to incline so that grating may deviate support when rotating
Tiltedly, and the glue after softening can be to bottom offset, grating can not just reappear that holding is vertical after solidification, and then grating slope is got in the course of time
Come more obvious and also result in it and directly come off, it is impossible to stable use for a long time.
Meanwhile, light barrier holder is fixed by screws on machine shaft in the patent, and light barrier holder rotates for a long time
Loosening is had at mode connects for screw afterwards, causes stop position run-off the straight or displacement, causes the monochromatic light finally exported intensity occur
Deviation, it would therefore be desirable to which designing a kind of can voluntarily detect whether grating meets that output is required and structure is more stable
Light-dividing device.
The content of the invention
Based on above technical problem, the stable type optical splitter of detection is easy to the invention provides a kind of, thus solve with
Toward light-dividing device grating install easily cause error, install after the technology that can not voluntarily detect of the unstable conventional grating degree of accuracy ask
Topic.
To solve above technical problem, the technical solution adopted by the present invention is as follows：
It is a kind of be easy to detection stable type optical splitter, including motor, light barrier holder, be fixed on light barrier holder grating,
Electric machine controller for controlled motor, it is fixed on light barrier holder top and back to zero piece positioned at grating top, is arranged on back to zero
Optocoupler above piece and two plane mirrors and concave mirror being arranged on bottom plate, described bottom plate and the end of motor
Face is fixedly linked, and light barrier holder is fixed in the rotating shaft of motor, and described motor and optocoupler are also connected with electric machine controller
Connect；Both sides on the bottom plate positioned at grating are also respectively provided with entrance slit and exit slit；
The side that the light barrier holder is fixed with grating is provided with the middle part of locating slot, locating slot to be set respectively with four edges
It is equipped with deck and positioning hole, positioning hole and is provided with snap ring, the grating side is provided with the positioning coordinated with locating slot
Platform, positioning table middle part and four edges are respectively arranged with the card column coordinated with deck and the locating dowel coordinated with positioning hole, fixed
Position post circumference is provided with the annular groove coordinated with positioning table；
The grating is coordinated by positioning table and locating slot, deck and card column coordinate and positioning hole and locating dowel cooperation positioning
In light barrier holder side；And cavity is left between positioning table and annular groove after positioning table and annular groove cooperation, filled in the cavity
There is bonding agent；
The light-dividing device also includes the Grating examinations device that entrance slit homonymy is located on bottom plate, and Grating examinations device includes
Connection ring, connection ring circumference is connected with the different monochromatic source component of two intensities of light source and a rotating bar, two lists
Coloured light source component is located at connection ring homonymy and interval setting, and two monochromatic source components can be turned to entering for entrance slit
Mouth end is simultaneously coaxial with entrance slit, and the rotation boom end is connected with armature, and the bottom panel side is respectively provided with positioned at armature both sides
There is electromagnet；The connection ring is connected with rotary shaft, and rotary shaft is rotatably connected with the bottom plate；The rotation outer shaft sleeve is set
There is torsion spring, the two ends of torsion spring are fixedly connected with bottom plate and connection ring respectively；
Two monochromatic source components and two electromagnet are respectively connected with power control switch.
It is preferred that, the light barrier holder upper end is also vertically arranged with the filling through hole connected with cavity.
It is preferred that, the bottom plate is provided with through hole, and the light barrier holder end portion is located in through hole and turned with motor
Axle is connected, and the through hole is located at the part-circular periphery in through hole in light barrier holder lower end and is additionally provided with ball bearing.
It is preferred that, the bottom plate lower end is provided with locating ring, and the motor is solid with the bottom plate after being positioned by locating ring
It is fixed to be connected.
It is preferred that, the bottom plate is located at entrance slit homonymy and sets fluted, and the Grating examinations device and electromagnet are equal
It is arranged in groove, two monochromatic source components stretch out groove by folded plate.
It is preferred that, it is also associated with transverse plate between two folded plates.
It is preferred that, the side of the armature towards electromagnet is inclined plane；The end face of the electromagnet towards armature is set
It is equipped with anticollision flexible glue.
It is preferred that, the monochromatic source component includes light collecting barrel, and light collecting barrel threaded one end is connected with logical on the inside of cover, cover
Cross buckle and be snapped with monochromatic paster LED；The light collecting barrel other end is provided with light hole.
It is preferred that, the hole wall of the light hole in arc transition and forms smooth flat positioned at light hole aperture.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, the present invention is simple in construction, easy to loading and unloading, can be clamped on grating on light barrier holder vertically, and position standard
Really, stabilized structure, at the same between structure by bonding agent be bonded fill, reduce gap, it is to avoid because gap exist and caused by light
Grid are rocked or shifted, and further increase the stability and reliability of grating, are easy to use for a long time.
2nd, the present invention is not on the premise of light-dividing device structure is changed, it is possible to achieve automatic Grating examinations, so that detection light
The use state of grid can be detected voluntarily to decide whether to repair and calibrate, and during detection without dismounting, other without providing
Equipment can be completed, and reduce process and the time of calibration and detection.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is Fig. 1 side view；
Fig. 3 is the structural representation of monochromatic source component；
Fig. 4 is Fig. 2 partial sectional view；
Fig. 5 is the structural representation of grating；
Label in figure is expressed as：1st, entrance slit；2nd, monochromatic source component；3rd, folded plate；4th, connection ring；5th, rotate
Axle；6th, torsion spring；7th, rotating bar；8th, armature；9th, groove；10th, concave mirror；11st, bottom plate；12nd, back to zero piece；13rd, exit slit；
14th, optocoupler；15th, grating；16th, light barrier holder；17th, plane mirror；18th, electric machine controller；19th, motor；20th, transverse plate；21、
Electromagnet；22nd, anticollision flexible glue；23rd, light hole；24th, light collecting barrel；25th, cover；26th, monochromatic paster LED；27th, buckle；28th, block
Seat；29th, locating slot；30th, positioning hole；31st, through hole is filled；32nd, ball bearing；33rd, locating ring；34th, positioning table；35th, locating dowel；
36th, annular groove；37th, card column.
Embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings.Embodiments of the present invention include but is not limited to following reality
Apply example.
Embodiment
As Figure 1-Figure 5, it is a kind of to be easy to the stable type optical splitter of detection, including motor 19, light barrier holder 16, be fixed on
Grating 15 on light barrier holder 16, the electric machine controller 18 for controlled motor 19, it is fixed on the top of light barrier holder 16 and is located at
The back to zero piece 12 on the top of grating 15, the optocoupler 14 for being arranged on the top of back to zero piece 12 and two planes being arranged on bottom plate 11 are anti-
Mirror 17 and concave mirror 10 are penetrated, the end face of described bottom plate 11 and motor 19 is fixedly linked, and light barrier holder 16 is fixed on electricity
In the rotating shaft of machine 19, described motor 19 and optocoupler 14 are also connected with electric machine controller 18；It is located at light on the bottom plate 11
The both sides of grid (15) are also respectively provided with entrance slit 1 and exit slit 13；
The side that the light barrier holder 16 is fixed with grating 15 is provided with locating slot 29, the middle part of locating slot 29 and four corners
Place, which is respectively arranged with deck 28 and positioning hole 30, positioning hole 30, is provided with snap ring, the side of grating 15 be provided with
The positioning table 34 that locating slot 29 coordinates, the middle part of positioning table 34 and four edges are respectively arranged with the card column coordinated with deck 28
37 and with positioning hole 30 coordinate locating dowel 35, the circumference of locating dowel 35 be provided with positioning table 34 coordinate annular groove 36；
The grating 15 is coordinated by positioning table 34 and locating slot 29, deck 28 coordinates with card column 37 and positioning hole 30 is with determining
Position post 35, which coordinates, is positioned at the side of light barrier holder 16；And positioning table 34 and annular groove 36 coordinate after positioning table 34 and annular groove 36 it
Between leave cavity, bonding agent is filled with the cavity.
The operation principle of the present embodiment is：The complex light that light source is sent is mapped to plane mirror by entrance slit 1 first
On 17, then complex light is reflexed on concave mirror 10 by plane mirror 17；Concave mirror 10 is received after complex light
Just it is focused, and the complex light after focusing is reflexed on grating 15；Grating 15 is carried out after receiving the complex light after focusing on
Light splitting, and the complex light after light splitting is re-reflected on concave mirror 10；Last concave mirror 10 is again by after light splitting
Complex light is focused on and reflexed on the plane mirror 17 near exit slit 13, is reflected by plane mirror 17 and by outgoing
Slit 13 is exported.
The present embodiment in order to be able to detect whether the position of grating 15 tilts or shift at any time, in the good grating of aforementioned stable
On light-dividing device, Grating examinations device is also added, the Grating examinations device includes connection ring 4, the circumference of connection ring 4 is connected with two
The different monochromatic source component 2 of the individual intensity of light source and a rotating bar 7, it is same that two monochromatic source components 2 are located at connection ring 4
Side and interval setting, and two monochromatic source components 2 can be turned to the arrival end of entrance slit 1 and same with entrance slit 1
Axle, the end of rotating bar 7 is connected with armature 8, and the side of bottom plate 11 is provided with electromagnet 21 positioned at the both sides of armature 8；Institute
State connection ring 4 and be connected with rotary shaft 5, rotary shaft 5 is rotatably connected with the bottom plate 11；Torsion is arranged with outside the rotary shaft 5
Spring 6, the two ends of torsion spring 6 are fixedly connected with bottom plate 11 and connection ring 4 respectively；Described in two monochromatic source components 2 and two
Electromagnet 21 is respectively connected with power control switch.
The present embodiment passes through power control switch control two when needing the position for detecting grating whether to tilt or shift
An energization in electromagnet 21, the absorption armature 8 of electromagnet 21 of energization makes it drive connection ring 4 to rotate, and now torsion spring 6 is even
Connecing ring 4 drives lower reverse to store power, at the same connection ring 4 rotate in latter two monochromatic source component 2 one of them then turn into
Penetrate the arrival end of slit 1 and coaxial with entrance slit 1, should by the circuit of the power control switch connection monochromatic source component 2
Monochromatic source component 2 is opened and provides monochromatic source, and monochromatic source is exported by above-mentioned light path from exit slit 13, due to monochrome
The light intensity of light source assembly 2 by the light intensity for detecting the light projected or the ratio for observing its light and shade striped, it is known that can now be examined
Output light is measured with the presence or absence of deviation, and then can show whether the position of grating has deviation, so that whether determining device available or
Adjustment need to be repaired；After detection is finished, then the circuit of above-mentioned electromagnet 21 and monochromatic source component 2 is closed, now torsion spring 6 recovers
Deformation drives connection ring 4 to turn to home position；To ensure that testing result is accurate, it can also connect another after above-mentioned detection is completed
The circuit of individual electromagnet 21 and monochromatic source component 2 is detected again, and comprehensive analysis is carried out with reference to the two testing result, is improved
The accuracy of testing result.The monochromatic source component 2 of the present embodiment is preferably selected the light source of two kinds of varying strength sizes, to carry
The accuracy of high detection.
The grating 15 of the present embodiment is positioned in locating slot 29 by positioning table 34, and passes through four locating dowels 35 and positioning
Hole 30 coordinates clamping to realize firm connection, and the deck 28 at middle part coordinates with card column 37, can ensure deform in the middle part of grating,
Whole grating planar keeps same plane, while also increasing the fastness of grating connection.
The present embodiment fills bonding agent in the cavity between positioning table 34 and annular groove 36, so that after being connected firmly again
The effect of the secondary firm connection of increase, it is to avoid grating occurs slight vibrations and influences light splitting in plant running.
The present embodiment grating 15 is connected by way of coordinating clamping with light barrier holder, with accurate positioning, stable connection
The characteristics of, polarization is good, and grating will not be subjected to displacement, tilts and rock, and improves the accuracy rate of grating beam splitting.
In the present embodiment, the filling of bonding agent for convenience is also vertically arranged with the upper end of light barrier holder 16 and connected with cavity
Logical filling through hole 31.After 15 installation of grating, it can be directly filled, saved by filling through hole injection bonding agent
Filling time and flow.
The present embodiment bottom plate 11 set through hole, the end portion of light barrier holder 16 be located at through hole in and with the rotating shaft of motor 19
Connection, the through hole is located at the part-circular periphery in through hole in the lower end of light barrier holder 16 and is additionally provided with ball bearing 32.Prior art
The middle lower end of light barrier holder 16 is used after being directly connected with the rotating shaft of motor 19, and this results in the lower end of light barrier holder 16 and bottom plate
11 have friction, and influence grating 15 is rotated, and also increases energy consumption, and frictional heat also results in grating 15 and is heated, and then
It is influenceed to use, therefore, the present embodiment adds ball bearing 32, so as to reduce the friction being subject to when light barrier holder 16 is rotated
Power, reduces heating, it is ensured that grating 15 is normally used.
The present embodiment sets locating ring 33, the motor 19 to improve the installation accuracy of grating 15 in the lower end of bottom plate 11
It is fixedly linked after being positioned by locating ring 33 with the bottom plate 11.Locating ring 33 can position motor 19, so as to ensure motor
19 are respectively positioned on same axis with light barrier holder 16, so as to ensure that the set location of grating 15, further increase whole device
The accuracy of light splitting.
The present embodiment considers device overall structure, and being located at the homonymy of entrance slit 1 in the bottom plate 11 sets fluted 9,
The Grating examinations device and electromagnet 21 are arranged in groove 9, and two monochromatic source components 2 are stretched by folded plate 3
Go out groove 9.So as to which Grating examinations device and electromagnet 21 may be provided in groove 9, bottom plate 11 will not be protruded, occupancy is reduced empty
Between and volume, it is ensured that under the requirement of original device dimensional structure realize detection.
In the present embodiment, transverse plate 20 is also associated between two folded plates 3.Transverse plate 20 can be by two folded plates 3
It is connected as a single entity, so as to increase the stability of the two, it is to avoid monochromatic source component 2 is rocked in the adsorption process of electromagnet 21.
In the present embodiment, the side of armature 8 towards the electromagnet 21 is inclined plane；The electromagnet 21 is towards armature
8 end face is provided with anticollision flexible glue 22.Armature 8 is when adsorbing to electromagnet 21 and being fitted with electromagnet 21, the contact of inclined plane
Face is maximum, so as to increase absorption affinity of the electromagnet 21 to armature 8.Anticollision flexible glue 22 can reduce electromagnet 21 and armature 8
The impulsive force mutually collided, reduces many infringements of the two.
On the basis of above technical scheme, the monochromatic source component 2 of the present embodiment includes light collecting barrel 24, the one end of light collecting barrel 24
Cover 25 is threaded with, the inner side of cover 25 is snapped with monochromatic paster LED 26 by buckle 27；The other end of light collecting barrel 24 is set
It is equipped with light hole 23.The monochromatic light that monochromatic paster LED 26 is sent by after the optically focused of light collecting barrel 24 by light hole 23 formation light beam,
Light collecting barrel 24, cover 25 and monochromatic paster LED 26 are connected using dismountable mode, so as to facilitate installation and debugging and maintenance.
The hole wall of above-mentioned light hole 23 in arc transition and forms smooth flat positioned at the aperture of light hole 23.Light hole 23
Hole wall be in arc transition after tend to be steady to form smooth plane so that the port position of light hole 23 be smooth periphery,
The light that light hole 23 is projected can ensure that straight line is projected, and light condenses, and ensure that the injection that monochromatic light can seldom be lost
Entrance slit 1, it is ensured that testing result is accurate.
It is embodiments of the invention as described above.Design parameter in above-described embodiment and embodiment is merely to clear
The invention verification process of inventor is stated by Chu, and is not used to the scope of patent protection of the limitation present invention, patent protection of the invention
Scope is still defined by its claims, and the equivalent structure that every specification and accompanying drawing content with the present invention is made becomes
Change, similarly should be included within the scope of the present invention.
Claims (9)
1. being easy to the stable type optical splitter of detection, including motor (19), light barrier holder (16), it is fixed on light barrier holder (16)
Grating (15), the electric machine controller (18) for controlled motor (19), it is fixed on light barrier holder (16) top and positioned at grating
(15) the back to zero piece (12) on top, the optocoupler (14) being arranged on above back to zero piece (12) and two be arranged on bottom plate (11)
Plane mirror (17) and concave mirror (10), the bottom plate (11) and the end face of motor (19) are fixedly linked, and grating branch
Frame (16) is fixed in the rotating shaft of motor (19), and the motor (19) and optocoupler (14) are also connected with electric machine controller (18)
Connect；Both sides on the bottom plate (11) positioned at grating (15) are also respectively provided with entrance slit (1) and exit slit (13)；
It is characterized in that：
The light barrier holder (16) side fixed with grating (15) is provided with the middle part of locating slot (29), locating slot (29) and four
Edge is respectively arranged with deck (28) and positioning hole (30), positioning hole (30) and is provided with snap ring, the grating (15)
Side is provided with the positioning table (34) coordinated with locating slot (29), in the middle part of positioning table (34) and four edges be respectively arranged with and
The card column (37) that deck (28) coordinates and the locating dowel (35) with positioning hole (30) cooperation, locating dowel (35) circumference are provided with and positioning
The annular groove (36) that platform (34) coordinates；
The grating (15) is coordinated by positioning table (34) and locating slot (29), deck (28) coordinates and positioning hole with card column (37)
(30) coordinate with locating dowel (35) and be positioned at light barrier holder (16) side；And positioning table (34) after annular groove (36) cooperation with positioning
Cavity is left between platform (34) and annular groove (36), bonding agent is filled with the cavity；
The light-dividing device also includes the Grating examinations device that entrance slit (1) homonymy is located on bottom plate (11), Grating examinations device
Including connection ring (4), connection ring (4) circumference is connected with the different monochromatic source component (2) of two intensities of light source and a rotation
Bar (7), two monochromatic source components (2) are located at connection ring (4) homonymy and interval setting, and two sets of monochromatic light sources
Part (2) can be turned to the arrival end of entrance slit (1) and with entrance slit (1) coaxially, rotating bar (7) end is connected with rank
Iron (8), the bottom plate (11) is provided with electromagnet (21) positioned at armature (8) both sides sideways；The connection ring (4), which is connected with, to be turned
Moving axis (5), rotary shaft (5) is rotatably connected with the bottom plate (11)；Torsion spring (6), torsion spring are arranged with outside the rotary shaft (5)
(6) two ends are fixedly connected with bottom plate (11) and connection ring (4) respectively；
Two monochromatic source components (2) and two electromagnet (21) are respectively connected with power control switch.
2. the stable type optical splitter according to claim 1 for being easy to detect, it is characterised in that：On the light barrier holder (16)
End is also vertically arranged with the filling through hole (31) connected with cavity.
3. the stable type optical splitter according to claim 1 for being easy to detect, it is characterised in that：The bottom plate (11) is provided with
Through hole, light barrier holder (16) end portion is located in through hole and is connected with the rotating shaft of motor (19), and the through hole is in grating
The part-circular periphery that support (16) lower end is located in through hole is additionally provided with ball bearing (32).
4. the stable type optical splitter according to claim 1 for being easy to detect, it is characterised in that：Bottom plate (11) lower end is set
Locating ring (33) is equipped with, the motor (19) is fixedly linked after being positioned by locating ring (33) with the bottom plate (11).
5. the stable type optical splitter according to claim 1 for being easy to detect, it is characterised in that：The bottom plate (11) be located at into
Penetrate slit (1) homonymy and fluted (9) are set, the Grating examinations device and electromagnet (21) are arranged in groove (9), two
The monochromatic source component (2) stretches out groove (9) by folded plate (3).
6. the stable type optical splitter according to claim 1 for being easy to detect, it is characterised in that：Described two folded plates
(3) transverse plate (20) is also associated between.
7. the stable type optical splitter according to claim 1 for being easy to detect, it is characterised in that：The armature (8) is towards electricity
The side of magnet (21) is inclined plane；The electromagnet (21) is provided with anticollision flexible glue (22) towards the end face of armature (8).
8. the stable type optical splitter for being easy to detection according to claim any one of 1-7, it is characterised in that：The monochromatic light
Source component (2) includes light collecting barrel (24), and light collecting barrel (24) threaded one end, which is connected with the inside of cover (25), cover (25), passes through buckle
(27) it is snapped with monochromatic paster LED (26)；Light collecting barrel (24) other end is provided with light hole (23).
9. the stable type optical splitter according to claim 8 for being easy to detect, it is characterised in that：The hole of the light hole (23)
Wall in arc transition and forms smooth flat positioned at light hole (23) aperture.
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| CN201710386861.1A CN106969710B (en) | 2017-05-26 | 2017-05-26 | Stable light splitter convenient to detect |
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| CN201710386861.1A CN106969710B (en) | 2017-05-26 | 2017-05-26 | Stable light splitter convenient to detect |
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