GrayGlass - www.grayglass.net
Kopp Blue - Green - 4308
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Blue - Green - 4308
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| Note: Graph and tabular data at 3.90 mm | |||||
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Filter Specifications
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| Transmission at 605 nm must be 15 ± 0.7% | |||||
| The difference between 15% and 60% transmission must be 64 - 74 nm | |||||
| Maximum transmission must be at 462 ± 5 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 - 4308
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Wavelength
|
Transmission
|
Wavelength
|
Transmission
|
Wavelength
|
Transmission
|
|
(nm)
|
(%)
|
(nm)
|
(%)
|
(nm)
|
(%)
|
|
200
|
0.00
|
435
|
83.13
|
670
|
2.68
|
|
205
|
0.00
|
440
|
83.81
|
675
|
2.39
|
|
210
|
0.00
|
445
|
84.44
|
680
|
2.13
|
|
215
|
0.00
|
450
|
84.90
|
685
|
1.92
|
|
220
|
0.00
|
455
|
85.38
|
690
|
1.73
|
|
225
|
0.00
|
460
|
85.58
|
695
|
1.57
|
|
230
|
0.00
|
465
|
85.71
|
700
|
1.44
|
|
235
|
0.00
|
470
|
85.70
|
705
|
1.32
|
|
240
|
0.00
|
475
|
85.45
|
710
|
1.22
|
|
245
|
0.00
|
480
|
85.07
|
715
|
1.13
|
|
250
|
0.00
|
485
|
84.48
|
720
|
1.05
|
|
255
|
0.00
|
490
|
83.62
|
725
|
0.99
|
|
260
|
0.00
|
495
|
82.60
|
730
|
0.93
|
|
265
|
0.00
|
500
|
81.26
|
735
|
0.88
|
|
270
|
0.00
|
505
|
79.46
|
740
|
0.84
|
|
275
|
0.00
|
510
|
77.47
|
745
|
0.81
|
|
280
|
0.00
|
515
|
75.16
|
750
|
0.78
|
|
285
|
0.00
|
520
|
72.43
|
755
|
0.76
|
|
290
|
0.00
|
525
|
69.42
|
760
|
0.73
|
|
295
|
0.00
|
530
|
66.09
|
765
|
0.72
|
|
300
|
0.00
|
535
|
62.52
|
770
|
0.70
|
|
305
|
0.00
|
540
|
58.76
|
775
|
0.70
|
|
310
|
0.00
|
545
|
55.05
|
780
|
0.69
|
|
315
|
0.00
|
550
|
51.14
|
785
|
0.68
|
|
320
|
0.02
|
555
|
47.14
|
790
|
0.68
|
|
325
|
0.24
|
560
|
43.25
|
795
|
0.68
|
|
330
|
1.40
|
565
|
39.28
|
800
|
0.68
|
|
335
|
4.89
|
570
|
35.52
|
805
|
0.69
|
|
340
|
11.62
|
575
|
31.92
|
810
|
0.70
|
|
345
|
21.24
|
580
|
28.53
|
815
|
0.71
|
|
350
|
32.16
|
585
|
25.34
|
820
|
0.72
|
|
355
|
41.85
|
590
|
22.47
|
825
|
0.73
|
|
360
|
50.64
|
595
|
19.83
|
830
|
0.75
|
|
365
|
57.17
|
600
|
17.48
|
835
|
0.77
|
|
370
|
62.33
|
605
|
15.35
|
840
|
0.81
|
|
375
|
65.81
|
610
|
13.44
|
845
|
0.81
|
|
380
|
68.36
|
615
|
11.75
|
850
|
0.84
|
|
385
|
71.29
|
620
|
10.24
|
855
|
0.87
|
|
390
|
73.91
|
625
|
8.91
|
860
|
0.88
|
|
395
|
75.79
|
630
|
7.74
|
865
|
0.93
|
|
400
|
77.25
|
635
|
6.74
|
870
|
0.99
|
|
405
|
78.34
|
640
|
5.85
|
875
|
1.00
|
|
410
|
79.12
|
645
|
5.11
|
880
|
1.03
|
|
415
|
80.03
|
650
|
4.45
|
885
|
1.15
|
|
420
|
80.88
|
655
|
3.90
|
890
|
1.15
|
|
425
|
81.80
|
660
|
3.43
|
895
|
1.14
|
|
430
|
82.52
|
665
|
3.03
|
900
|
1.18
|