1 The surrounding rock deformation of soft rock roadway has obvious time effect. It shows that the initial deformation speed is very large, and the deformation tends to be stable, and the rheology is still generated at a large speed, and the duration is long. If effective support measures are not taken, the deformation of the surrounding rock will increase sharply, which will inevitably lead to instability and damage of the roadway. 2 Soft rock roadway is mostly characterized by circumferential compression and asymmetry. In the soft rock roadway, not only the deformation of the roof is easy to fall, but also the bottom plate also produces a strong bottom sill, which causes the two ruins to collapse the roof. 3 The deformation of surrounding rock in soft rock roadway increases with the increase of buried depth, and there is a critical depth of softening. The deformation exceeding critical depth increases sharply. 4 The surrounding rock deformation of soft rock roadway has obvious directionality under different stresses. The roadway has poor self-stability and short self-stabilization time.
375nm to 940nm Multimode wavelength LED are designed for microscopy and other applications that require multiple color channels.The LED current of each channel can be adjusted independently or modulated via an external voltage.The multi-wavelength LED system offer a compact housing with a backlit, easy-to-read LCD display. They are operated via the buttons on the front panel.
Nominal Wavelength (nm)
UV
Note:
1. The above testing data are only for reference, the actual spectrum of LED may change since the temperature or other parameters are different when operating the current.
2.The above data was tested by 600μm core diameter, 0.22 NA multimode fibers. Other core diameter fibers are available on request.
64 (L) ×46.5 (W) ×30 (H) mm3
114 (L) ×78 (W) ×71 (H) mm3
Fiber Coupled Led,Fiber Coupled Blue Led,Fiber Coupled Led 1550,Single Mode Fiber Coupled Led Changchun New Industries Optoelectronics Technology Co., Ltd. , https://www.cnioptics.com
Features
â– UV, Visible, and NIR Versions (from 375nm to 1550nm)
â– The SMA connector is ideal for multimode fiber.
â– Multi-wavelength fiber coupled LED available.
Data Sheet for Single Wavelength LED
Model
Color
Bandwidth FWHM (nm)
Typical Φ600um Core Fiber Output Power SMA (mW)
Maximum Current CW (mA)
Forward Voltage (V)
Typical Lifetime (h)
LFM375
375
9
3.0
1400
3.6
~10000
LFM395
UV
395
16
1.0
500
4.5
~10000
LFM405
UV
405
12
4.2
1400
3.45
~10000
LFM430
Violet
430
15
1.0
500
3.8
~10000
LFM460
Royal Blue
460
25
6.0
1000
3.6
~10000
LFM470
Blue
470
25
3.2
1000
3.2
~10000
LFM500
Cyan
500
30
2.2
1000
3.3
~10000
LFM530
Green
530
33
3.0
1000
3.2
~10000
LFM565
Lime
565
104
3.0
1000
3.1
~10000
LFM600
Amber
600
15
1.2
1000
2.6
~10000
LFM620
Red
620
18
5.5
1000
2.2
~10000
LFM625
Red
625
17
3.0
1000
2.2
~10000
LFM660
Deep Red
660
20
4.0
1200
2.6
~10000
LFM730
Far Red
730
37
1.5
1000
2.3
~10000
LFM808
IR
808
25
2.5
500
3.6
~10000
LFM850
IR
850
30
3.0
1500
3.85
~10000
LFM880
IR
880
50
1.0
1000
1.7
~10000
LFM940
IR
940
37
3.0
1000
2.75
~10000
LFM1050
IR
1050
37
2.0
600
1.4
~10000
LFM1550
IR
1550
102
1.0
700
1.1
~10000
Laser Head
Power Supply
Data Sheet for Multi-wavelength LED
Parameters
Indicators
Available wavelength (nm)
375-940
Output mode
Fiber output
Fiber core diameter (μm)
400, 600, 800, 1000
Fiber connector
SMA905
Output power (mW)
Related to fiber
Power stability (rms, over 4 hours)
<3%, <5%
Operating mode
CW, TTL or Analog on request
Operating temperature (°C)
10~35
Dimensions
192(L)*241(w)*139.9(H)mm3
Input power
12VDC 7A
Cooling method
By air
Storage temperature (°C)
-20~80
Lifetime (hours)
10000
Fiber Specs
Deformation law of surrounding rock in soft rock roadway