GrayGlass - www.grayglass.net
Kopp Blue - Green - 4309
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Blue - Green - 4309
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| Note: Graph and tabular data at 3.30 mm | |||||
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Filter Specifications
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| Transmission at 665 nm must be 15 ± 0.7% | |||||
| Difference between 15% and 60% transmission must 102 ± 8 nm | |||||
| Maximum transmission must be at 470 ± 10 nm | |||||
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Physical Properties
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| Nominal Thickness Range | 3.5 - 4.5 mm | ||||
| Refractive Index | nD = 1.51 | ||||
| Density | 2.50 g/cm3 | ||||
| Thermal Linear Expansion | 95E-7 /ºC (30-300 ºC) | ||||
| Strain Temperature | 474 ºC | ||||
| Annealing Temperature | 511 ºC | ||||
| Deformation Temperature | 685 ºC | ||||
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Blue - Green - 4309
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Wavelength
|
Transmission
|
Wavelength
|
Transmission
|
Wavelength
|
Transmission
|
|
(nm)
|
(%)
|
(nm)
|
(%)
|
(nm)
|
(%)
|
|
200
|
0.01
|
435
|
87.28
|
670
|
13.68
|
|
205
|
0.01
|
440
|
87.42
|
675
|
12.84
|
|
210
|
0.01
|
445
|
87.62
|
680
|
12.05
|
|
215
|
0.01
|
450
|
87.73
|
685
|
11.38
|
|
220
|
0.00
|
455
|
87.81
|
690
|
10.77
|
|
225
|
0.00
|
460
|
87.89
|
695
|
10.21
|
|
230
|
0.00
|
465
|
87.89
|
700
|
9.74
|
|
235
|
0.00
|
470
|
87.71
|
705
|
9.28
|
|
240
|
0.00
|
475
|
87.57
|
710
|
8.90
|
|
245
|
0.00
|
480
|
87.32
|
715
|
8.54
|
|
250
|
0.00
|
485
|
86.90
|
720
|
8.22
|
|
255
|
0.00
|
490
|
86.47
|
725
|
7.95
|
|
260
|
0.00
|
495
|
85.91
|
730
|
7.70
|
|
265
|
0.00
|
500
|
85.09
|
735
|
7.49
|
|
270
|
0.00
|
505
|
84.11
|
740
|
7.30
|
|
275
|
0.00
|
510
|
82.92
|
745
|
7.14
|
|
280
|
0.00
|
515
|
81.58
|
750
|
7.00
|
|
285
|
0.00
|
520
|
79.95
|
755
|
6.89
|
|
290
|
0.00
|
525
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78.14
|
760
|
6.76
|
|
295
|
0.00
|
530
|
76.20
|
765
|
6.70
|
|
300
|
0.00
|
535
|
73.95
|
770
|
6.63
|
|
305
|
0.00
|
540
|
71.51
|
775
|
6.58
|
|
310
|
0.02
|
545
|
68.97
|
780
|
6.55
|
|
315
|
0.28
|
550
|
66.33
|
785
|
6.53
|
|
320
|
1.70
|
555
|
63.40
|
790
|
6.50
|
|
325
|
6.06
|
560
|
60.51
|
795
|
6.53
|
|
330
|
14.41
|
565
|
57.60
|
800
|
6.55
|
|
335
|
26.08
|
570
|
54.52
|
805
|
6.56
|
|
340
|
38.40
|
575
|
51.52
|
810
|
6.62
|
|
345
|
50.16
|
580
|
48.58
|
815
|
6.67
|
|
350
|
59.84
|
585
|
45.71
|
820
|
6.71
|
|
355
|
67.57
|
590
|
42.84
|
825
|
6.81
|
|
360
|
72.89
|
595
|
40.10
|
830
|
6.90
|
|
365
|
76.94
|
600
|
37.47
|
835
|
7.01
|
|
370
|
79.38
|
605
|
34.95
|
840
|
7.11
|
|
375
|
80.73
|
610
|
32.54
|
845
|
7.24
|
|
380
|
81.71
|
615
|
30.24
|
850
|
7.39
|
|
385
|
83.18
|
620
|
28.09
|
855
|
7.50
|
|
390
|
84.67
|
625
|
26.08
|
860
|
7.73
|
|
395
|
85.34
|
630
|
24.19
|
865
|
7.80
|
|
400
|
86.06
|
635
|
22.44
|
870
|
7.91
|
|
405
|
86.31
|
640
|
20.84
|
875
|
8.17
|
|
410
|
86.62
|
645
|
19.34
|
880
|
8.23
|
|
415
|
86.88
|
650
|
17.98
|
885
|
8.36
|
|
420
|
87.02
|
655
|
16.74
|
890
|
8.71
|
|
425
|
87.24
|
660
|
15.62
|
895
|
8.71
|
|
430
|
87.31
|
665
|
14.60
|
900
|
9.32
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