CN205942073U - Multichannel fluorescence lighting device - Google Patents
Multichannel fluorescence lighting device Download PDFInfo
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- CN205942073U CN205942073U CN201620723254.0U CN201620723254U CN205942073U CN 205942073 U CN205942073 U CN 205942073U CN 201620723254 U CN201620723254 U CN 201620723254U CN 205942073 U CN205942073 U CN 205942073U
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Abstract
The utility model provides a can be suitable for on the microscope of difference, can provide the multiple fluorescence of the different colours of different wavelength and switch different fluorescence convenient and fast's multichannel fluorescence lighting device, it includes the casing of compriseing base and housing, fixes the pivot inside the casing to the pivot is the relative pivot axis's of axis carousel, and the equipartition is at a plurality of fluorescence modules of carousel circumference, swallow tail base, eyepiece mount, the fluorescence module includes support, exciting light production portion, main optical path, and exciting light production portion includes light source, lens and exciting light light filter, main optical path includes dichroic mirror and fluorescence light filter, the reflection the dichroic mirror that the exciting light just passs through fluorescence all becomes 45 degrees with the exciting light optical axis that main optical path optical axis, exciting light production portion produced, the dichroic mirror's of each fluorescence module turn wavelength is different to make the fluorescence wavelength of each fluorescence module transmission different, when rotating the carousel, the main optical path of fluorescence module can be in with swallow tail base, the same the shaft position of eyepiece mount.
Description
Technical field
This technology relates to microscopical fluorescent lighting device.
Background technology
Currently, microscope, in order to realize fluorescent illumination, is fitted with fluorescent moieties.This fluorescent moieties include bearing,
Excitation light generation part, main optical path.
Described excitation light generation part, including the light source being arranged on bearing, lens and exciting light optical filter；Described key light
Road, including the dichroscope being arranged on bearing and fluorescent optical filter；Dichroscope, is becoming 45 degree with described main optical path optical axis
While also with described excitation light generation part produce exciting light optical axis become 45 degree of angles so that described main optical path optical axis with described swash
Luminous optical axis is orthogonal, and this dichroscope reflects described exciting light and transmission fluorescence.
Exciting light optical filter, is bandpass filter, the PLE phase of centre wavelength and bandwidth and fluorescent target to be seen
Join.Lens, in order to realize the collimation of the light beam being sent by described light source.Fluorescent optical filter, is bandpass filter, centre wavelength,
Bandwidth is matched with the fluorescence emission spectrum of fluorescent target to be observed, and the passband model of its free transmission range and described exciting light optical filter
Enclose and do not overlap, to filter the light of exciting light wave band.The turnover wavelength of dichroscope is between described exciting light optical filter and institute
In the interval of the free transmission range stating fluorescent optical filter, to reflect photon and the fluorescence bands described in transmission of described exciting light wave band
Photon.
Major problem is that of existing fluorescent moieties：1st, dichroscope is difficult to be accurately positioned on bearing.Because bearing
It is an entirety, dichroscope is complicated in the positioning and mounting structure of bearing, and a subtlety is overproof, cannot be to dichroscope
It is accurately positioned.And once installing, the position of dichroscope determines substantially it is difficult to adjust.This requires for dichroic
The mounting structure required precision of mirror is very high, and manufacturing cost is high, and installation difficulty is big.But due to needing artificial installation, even if each zero
Parts precision is high, also or it is difficult to ensure that the positional accuracy of dichroscope.2nd, because dichroscope positioning precision is low it is impossible to protect
Card dichroscope also becomes 45 degree of angles while becoming 45 degree with main optical path optical axis with exciting light optical axis, thus also brings main optical path
Optical axis cannot be orthogonal with exciting light optical axis problem, lead to the direction of fluorescence poor, image blur.3rd, fluorescent moieties be arranged on micro-
After on mirror, change cumbersome.If the difference of object according to the observation, need the fluorescence of different wave length different colours, then need
First fluorescent moieties before are taken off, then another one fluorescent moieties are installed, process is loaded down with trivial details.And need this two fluorescent moieties
Appearance and size essentially identical, otherwise cannot change.4th, the light source in fluorescent moieties is with scientific and technological development, using LED lamp
In the majority.But the heat that LED lamp produces is larger, temperature rise, light decay is serious, short life.
Content of the invention
The purpose of this technology is to provide a kind of being useful on different microscopes, using the teaching of the invention it is possible to provide different wave length difference face
Multiple fluorescence of color and switch different fluorescence conveniently multichannel fluorescent lighting device.
Multichannel fluorescent lighting device described in this technology, including：
Housing, is made up of base and case；
Pivot, is fixed on enclosure interior；
Rotating disk, is arranged on pivot with pivot for axis pivot relative；
Fluorescent moieties, including bearing, excitation light generation part, main optical path, wherein：
Excitation light generation part, including the light source being arranged on bearing, lens and exciting light optical filter；
Main optical path, including the dichroscope being arranged on bearing and fluorescent optical filter；
Dichroscope, while becoming 45 degree with described main optical path optical axis also with described excitation light generation part produce excite
Light optical axis becomes 45 degree of angles so that described main optical path optical axis is orthogonal with described exciting light optical axis, and the reflection of this dichroscope is described to swash
Light and transmission fluorescence；
Described fluorescent moieties have multiple, are distributed on the circumference of rotating disk；The turnover wavelength of the dichroscope of each fluorescent moieties
Difference, so that the wavelength of fluorescence of each fluorescent moieties transmission is different；
Dovetail mount, is arranged on base；
Eyepiece mount, is arranged on case；
When rotating rotating disk, the main optical path of each fluorescent moieties is at the position coaxial with dovetail mount, eyepiece mount, thus
The fluorescence enabling each fluorescent moieties transmission passes through dovetail mount, eyepiece mount.
The beneficial effect of this technology：Because multiple fluorescent moieties are arranged on a rotating disk, and different fluorescent moieties can
The fluorescence of transmission different colours different wave length.So, by rotating rotating disk, you can so that at the primary optical axis of fluorescent moieties needing
In the position coaxial with dovetail mount, eyepiece mount, efficient and convenient.In addition, the structure of each fluorescent moieties is identical, change the fluorescence of rotating disk
Module is also very simple.Because this multichannel fluorescent lighting device has dovetail groove and eyepiece mount, dovetail groove can extend into difference
It is connected with deck in microscopical various sizes of deck, different microscopical various sizes of dovetail grooves also can extend into mesh
It is connected with eyepiece mount in microscope base, so this lighting device is capable of from different microscopical docking it is adaptable to different is aobvious
Micro mirror, strong adaptability.
Above-mentioned multichannel fluorescent lighting device, the light source of each fluorescent moieties is connected on by supplying that magnetic switch controls
In circuit；Each magnetic switch is distributed on the circumference of rotating disk, is provided with the magnet controlling magnetic switch on base；When rotating disk turns
When moving the main optical path of any one fluorescent moieties and being in the position coaxial with dovetail mount, eyepiece mount, control in this fluorescent moieties
The magnetic switch of light source power supply is relative up and down in the axial direction parallel to rotating disk with magnet, and magnetic switch is in the presence of magnet
Described power supply circuits are connected, the light source luminescent in this fluorescent moieties.So, can be achieved to multiple fluorescence by magnet
The whether control of the light source luminescent of module, simplifies structure and control circuit further.Meanwhile, the main optical path of fluorescent moieties be in
During the coaxial position of dovetail mount, eyepiece mount, the light source luminescent of this fluorescent moieties is made it is achieved that both reaching by the effect of magnet
Positioning is put and is got final product automatic luminous.
Above-mentioned multichannel fluorescent lighting device, fixes a loop wire circuit board on rotating disk, and this loop wire circuit board has
Power supply circuits and magnetic switch to the light source power supply of each fluorescent moieties.It also includes a rotation circuit joint, rotation circuit
The rotating part of joint is electrically connected with the power supply circuits of loop wire circuit board；The fixed part of rotation circuit joint is arranged on pivot, and
Electrically connect with external power source；External power source is powered to power supply circuits by rotation circuit joint.So, cleverly solve static
Problem that how to power to the power supply circuits rotating of external power source.
Above-mentioned multichannel fluorescent lighting device, described light source is LED lamp, and led is arranged on for being radiated to led
On fin, fin is fixed on bearing.By fin, LED lamp is radiated, meanwhile, fin is fixed with bearing,
Bearing has also served as the heat dissipation element of LED lamp, greatly increases the area of dissipation of LED lamp, effectively reduces the temperature rise of LED lamp,
The service life of led is greatly improved.
Above-mentioned multichannel fluorescent lighting device, is provided with promotion LED lamp with respect to fin in exciting light on bearing
The radial direction movement of optical axis be adjusted screw.In such manner, it is possible to provide adjusting screw to adjust led in excitation light Axial and radial
The position in direction is so that led is located on optical axis.
Above-mentioned multichannel fluorescent lighting device, is provided with for carrying out to enclosure interior forcing the cold of cooling on base
But fan.By cooling fan, bearing, fin etc. are forced to cool down, ensured that the temperature rise of LED lamp is less further, work
Make relatively reliable.
Above-mentioned multichannel fluorescent lighting device, described bearing includes main bearing, secondary bearing, and secondary bearing has V-shaped groove,
Main bearing has V-arrangement projection corresponding with V-shaped groove, and dichroscope is arranged on V-shaped groove or a side of V-arrangement projection；Swash
In luminous generating unit and fluorescent optical filter, one is located on main bearing, and another is located on secondary bearing.Dashed forward with V-arrangement using V-shaped groove
Play the construction of cooperation, position reliable during assembling, reduce the requirement to operating personnel, assembling speed is fast.And, dichroscope sets
Put on a side of V-shaped groove or V-arrangement projection, achieve to dichroscope hi-Fix with simple structure, simply
Reliable, position accurately, has ensured that exciting light optical axis is orthogonal with primary optical axis.
Above-mentioned multichannel fluorescent lighting device, is provided with housing and rotating disk is carried out with spacing disk position maintenance dress
Put；When the main optical path that rotating disk turns to arbitrary fluorescent moieties is in the position coaxial with dovetail mount, eyepiece mount, disk position is tieed up
Hold device and enable to rotating disk and be maintained at this position.Disk position maintains device to enable to rotating disk can be reliable in coaxial position
Come to a complete stop, or need with larger power just can stir rotating disk leave coaxial position it is ensured that rotating disk can accurate rotational to need
The coaxial position wanted.
Above-mentioned multichannel fluorescent lighting device, is less than 10 lis from light source to the light path of exciting light outgoing in each fluorescent moieties
Rice.
Brief description
Fig. 1 is the general illustration of multichannel fluorescent lighting device.
Fig. 2 is the stereograms such as base, shell fragment, rotating disk；
Fig. 3 is the stereogram of fluorescent moieties, locating piece, rotating disk etc..
Fig. 4 is the stereogram of rotating disk, loop wire circuit board, disk position maintenance device etc..
Fig. 5 is the stereogram of base, loop wire circuit board, rotating disk etc..
Fig. 6 is the stereogram of base, loop wire circuit board, spacer ring etc..
Fig. 7 is fluorescent moieties schematic diagram；
Fig. 8 is the sectional view of pivot, housing, dovetail mount, eyepiece mount etc.；
Fig. 9 is that the annexations such as pivot, rotation circuit joint, plug, loop wire circuit board, external power cord, wire are illustrated
Figure.
In figure, housing 1, base 11, case 12, top surface 121, skirt section 122, spacer ring 13, flat board 14, cooling fan 15, line
Groove 16, pivot 2, pressing plate 21, rotatable parts 3, rotating disk 31, depressed part 311, projection 312, groove 313, plug hole 314, light hole
315th, bearing 32, locating piece 33, locating notch 331, fluorescent moieties 4, bearing 41, main bearing 411, secondary bearing 412, V-arrangement projection
413rd, V-shaped groove 414, side 415, recess 417, excitation light generation part 42, LED lamp 421, aspherical glass lens 422, excite
Light optical filter 423, main optical path 43, dichroscope 431, fluorescent optical filter 432, fin 424, adjusting screw 426, dovetail mount 5,
Eyepiece mount 6, loop wire circuit board 7, external power cord 71, wire 72, plug 73, rotation circuit joint 8, rotating part 81, fixed part
82nd, magnet 9, magnetic switch 91, disk position maintain device 10, shell fragment 101, roller 102.
Specific embodiment
With reference to the accompanying drawings and detailed description this technology is described further.
Referring to Fig. 1,6,8,9, multichannel fluorescent lighting device, main inclusion housing 1, pivot 2, rotatable parts 3,6 are glimmering
Optical module 4, dovetail mount 5, eyepiece mount 6, loop wire circuit board 7, rotation circuit joint 8, magnet 9, disk position maintain device 10.For
Diagram is clearer, only illustrates fluorescent moieties in Fig. 2,3,5,8 etc..
Housing 1 is made up of base 11 and case 12；Case mainly includes top surface 121 and skirt section 122.Base 11 perimeter support
Play skirt section 122.
Referring to Fig. 3,6, rotatable parts 3 include rotating disk 31, by two bearings 32 around hollow determining of relatively rotating of pivot 2
Position block 33；Rotating disk 31 is fixedly linked with locating piece bottom by bolt.Have, between two bearings, the spacer ring being sleeved on pivot periphery
13.Pressing plate 21 and the pivot of hollow are threaded connection, to compress the bearing 32 on top.
The skirt section 122 of case extends downward beyond rotating disk 31 around top surface periphery, and rotating disk is located in skirt section in other words.Rotating disk
31 external diameter is more smaller than skirt section internal diameter.Stir the rotation of rotating disk for convenience with hand, have increase friction on rotating disk periphery has
Groove；And, skirt section somewhere has the flat board 14 mutually cutting with it, flat board has and enables to rotating disk peripheral part and can expose
Narrow slot.
Referring to Fig. 7, fluorescent moieties 4, main inclusion bearing 41, excitation light generation part 42, main optical path 43.
Bearing 41 includes main bearing 411, secondary bearing 412, secondary bearing has V-shaped groove 414, main bearing has and V-shaped groove
Corresponding V-arrangement projection 413, has a recess 417 for putting into dichroscope on a side 415 of V-arrangement projection.
Excitation light generation part 42 is located on main bearing, the main LED lamp including being arranged on bearing（Light source）421st, aspheric
Surface glass lens 422 and exciting light optical filter 423, fin 424.The lamp socket of Led lamp is connected with fin by screw, dissipates
Backing is fixed on the end of main bearing.
Main bearing sidepiece be provided with promote LED lamp lamp socket with respect to fin in the radial direction side of exciting light optical axis
It is adjusted screw 426 to movement.When unclamping the screw that lamp socket is connected with fin, can be adjusted by adjusting screw 426
The position of whole lamp socket is so that the LED lamp on lamp socket is located on exciting light optical axis.
Referring to Fig. 8,9, pivot 2 is a hollow shaft, and its lower end is connected with base.Wire casing 16 is had on base, and outer
The external power cord 71 that portion's power supply is connected is arranged in wire casing 16.The bottom of rotating disk is provided with loop wire circuit board 7, this loop wire electricity
6 power supply circuits powered to the LED lamp of 6 fluorescent moieties respectively are had on the plate of road, in every power supply circuits, all has a control
Make the magnetic switch 91 of this power supply circuits break-make.Pass through to lead positioned at the rotating part 81 of the rotation circuit joint 8 of pivot hollow bulb
Line 72 is electrically connected with the plug 73 in plug hole 314, and plug is electrically connected with annular circuit board.Wire 72 is upwards from pivot
Empty portion passes through, then is connected with plug after the hollow bulb of pressing plate 21.The fixed part 82 of rotation circuit joint is arranged on pivot
Hollow bulb, and electrically connected with external power source by the external power cord 71 in wire casing.External power source passes through external power cord, rotation
Shifting circuit joint, wire, plug are powered to power supply circuits.
6 magnetic switch 91 on loop wire circuit board are evenly arranged in the circumference of rotating disk, are provided with control magnetic on base
The magnet 9 of control switch.When the main optical path that rotating disk turns to any one fluorescent moieties is in the position coaxial with dovetail mount, eyepiece mount
When putting, control the magnetic switch of light source power supply in this fluorescent moieties relative up and down in the axial direction parallel to rotating disk with magnet,
Magnetic switch makes described power supply circuits connect in the presence of magnet, the light source luminescent in this fluorescent moieties.
Main optical path 43 includes dichroscope 431 and is arranged on the fluorescent optical filter 432 on secondary bearing.
Dichroscope, while becoming 45 degree with described main optical path optical axis also with described excitation light generation part produce excite
Light optical axis becomes 45 degree of angles so that described main optical path optical axis is orthogonal with described exciting light optical axis, and the reflection of this dichroscope is described to swash
Light and transmission fluorescence.
6 fluorescent moieties pass through the positioning of locating piece 33, are distributed on the circumference of rotating disk；The dichroscope of each fluorescent moieties
Turnover wavelength different, so that the wavelength of fluorescence of each fluorescent moieties transmission is different.There are 6 squares in the circumference of locating piece
For the locating notch 331 that fluorescent moieties are positioned.In figure, clear in order to represent, merely illustrate fluorescent moieties.
Dovetail mount 5, is fixedly mounted on base；Eyepiece mount 6, is fixedly mounted on case.
Referring to Fig. 7, in each fluorescent moieties from LED to the light path of exciting light outgoing less than 10 centimetres, that is, along exciting light
Optical axis from the center A of LED to dichroscope center B apart from AB, along with along primary optical axis from dichroscope center B on earth
The bottom surface of seat be less than 10 centimetres apart from BC sum, that is, AB+BC ＜ 10cm.Shorten light path and can realize higher brightness,
The launching efficiency of fluorophor can be improved, preferably detect hypofluorescence signal.
Cooling fan 15 is provided with base, cooling fan 15 main to rotating disk, the top surface of case, the skirt section of case,
The inner space that flat board surrounds（Have in this inner space and produce the parts such as the LED lamp of larger heat, fin, main bearing）
Carry out forcing cooling.
During rotating rotating disk, when rotating disk turns to, any one fluorescent moieties main optical path is in and dovetail mount, eyepiece mount are same
The position of axle（Abbreviation coaxial position）When, in order to enable rotating disk reliably to come to a complete stop in coaxial position, or need to use
Larger power just can be stirred rotating disk and be left coaxial position, be also provided with disk position and maintain device 10.
Referring to Fig. 2,4, disk position maintains device 10 mainly to include being fixed on base bottom, and extends to from base bottom
Base outer perimeter, the shell fragment 101 being folded upward at again, the roller 102 being rotatably arranged on shell fragment, are arranged on and are opened on disk lower surface
Groove 313 in 6 projections 312, the depressed part 311 being arranged on prominent.6 depressed parts are distributed on the circumference of rotating disk.Turn
During disk rotates one week, when roller is located in groove, shell fragment is substantially at the normality not stressed.With the rotation of rotating disk, roll
When wheel and any one protuberance contacts, projection elder generation pushing rolling wheels 102 overcome the elasticity of shell fragment to move down, and then roller is again in shell fragment
Work shifting, enter in the depressed part 311 in this projection.When rotating disk turns to coaxial position, roller is in the effect of shell fragment
Under, it is in depressed part.Rotating disk needs, when coaxial position leaves, to need to stir rotating disk with larger power so that rotating disk promotes
Roller leaves depressed part.
The main optical path of any one fluorescent moieties is in the position coaxial with dovetail mount, eyepiece mount, so that each fluorescence
The fluorescence of module transmission can pass through dovetail mount, eyepiece mount.
Claims (10)
1. multichannel fluorescent lighting device, is characterized in that：Including：
Housing, is made up of base and case；
Pivot, is fixed on enclosure interior；
Rotating disk, is arranged on pivot with pivot for axis pivot relative；
Fluorescent moieties, including bearing, excitation light generation part, main optical path, wherein：
Excitation light generation part, including the light source being arranged on bearing, lens and exciting light optical filter；
Main optical path, including the dichroscope being arranged on bearing and fluorescent optical filter；
Dichroscope, the excitation light also producing with described excitation light generation part while becoming 45 degree with described main optical path optical axis
Axle becomes 45 degree of angles so that described main optical path optical axis is orthogonal with described exciting light optical axis, and this dichroscope reflects described exciting light
And transmission fluorescence；
Described fluorescent moieties have multiple, are distributed on the circumference of rotating disk；The turnover wavelength of the dichroscope of each fluorescent moieties is different,
So that the wavelength of fluorescence of each fluorescent moieties transmission is different；
Dovetail mount, is arranged on base；
Eyepiece mount, is arranged on case；
When rotating rotating disk, the main optical path of each fluorescent moieties is at the position coaxial with dovetail mount, eyepiece mount, so that
The fluorescence of each fluorescent moieties transmission can pass through dovetail mount, eyepiece mount.
2. multichannel fluorescent lighting device as claimed in claim 1, is characterized in that：The light source of each fluorescent moieties is connected to
In the power supply circuits being controlled by magnetic switch；Each magnetic switch is distributed on the circumference of rotating disk, is provided with control magnetic control on base
The magnet of switch；When the main optical path that rotating disk turns to any one fluorescent moieties is in the position coaxial with dovetail mount, eyepiece mount
When, control the magnetic switch of light source power supply in this fluorescent moieties with magnet in the phase up and down of the axial direction parallel to rotating disk
Right, magnetic switch makes described power supply circuits connect in the presence of magnet, the light source luminescent in this fluorescent moieties.
3. multichannel fluorescent lighting device as claimed in claim 2, is characterized in that：One loop wire circuit board is arranged on rotating disk,
The power supply circuits of light source power supply and magnetic switch to each fluorescent moieties is had on this loop wire circuit board.
4. multichannel fluorescent lighting device as claimed in claim 3, is characterized in that：It also includes a rotation circuit joint,
The rotating part of the rotation circuit joint within positioned at pivot is by electric through the wire of pivot and the power supply circuits of loop wire circuit board
Connect；The fixed part of rotation circuit joint is arranged on pivot, and electrically connects with external power source；External power source passes through rotation circuit
Joint, wire are powered to power supply circuits.
5. multichannel fluorescent lighting device as claimed in claim 1, is characterized in that：Described light source is LED lamp, and led is arranged on
For the fin that led is radiated, fin is fixed on bearing.
6. multichannel fluorescent lighting device as claimed in claim 5, is characterized in that：Promotion LED lamp phase is provided with bearing
For fin exciting light optical axis radial direction movement be adjusted screw.
7. the multichannel fluorescent lighting device as described in claim 1 or 5, is characterized in that：Base is provided with for shell
Internal portion carries out forcing the cooling fan of cooling.
8. multichannel fluorescent lighting device as claimed in claim 1, is characterized in that：Described bearing includes main bearing, secondary bearing,
On secondary bearing, there is V-shaped groove, main bearing has V-arrangement projection corresponding with V-shaped groove, dichroscope is arranged on V-shaped groove or V-arrangement is dashed forward
On the side risen；In excitation light generation part and fluorescent optical filter, one is located on main bearing, and another is located on secondary bearing.
9. multichannel fluorescent lighting device as claimed in claim 1, is characterized in that：Housing is provided with rotating disk is limited
The disk position of position maintains device；When the main optical path that rotating disk turns to arbitrary fluorescent moieties be in coaxial with dovetail mount, eyepiece mount
Position when, disk position maintains device to enable to rotating disk and be maintained at this position.
10. multichannel fluorescent lighting device as claimed in claim 1, is characterized in that：From light source to exciting in each fluorescent moieties
The light path of light outgoing is less than 10 centimetres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620723254.0U CN205942073U (en) | 2016-07-08 | 2016-07-08 | Multichannel fluorescence lighting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620723254.0U CN205942073U (en) | 2016-07-08 | 2016-07-08 | Multichannel fluorescence lighting device |
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| Publication Number | Publication Date |
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| CN205942073U true CN205942073U (en) | 2017-02-08 |
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| CN201620723254.0U Active CN205942073U (en) | 2016-07-08 | 2016-07-08 | Multichannel fluorescence lighting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974574A (en) * | 2016-07-08 | 2016-09-28 | 江苏斯托利仪器仪表有限公司 | Multichannel fluorescence illumination apparatus |
-
2016
- 2016-07-08 CN CN201620723254.0U patent/CN205942073U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974574A (en) * | 2016-07-08 | 2016-09-28 | 江苏斯托利仪器仪表有限公司 | Multichannel fluorescence illumination apparatus |
| CN105974574B (en) * | 2016-07-08 | 2019-01-22 | 江苏斯托利仪器仪表有限公司 | Multichannel fluorescent lighting device |
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