Kopp Sharp Cut Red - 3480

Back to Kopp Standard Filters

Sharp Cut Red - 3480
 
Note: Graph and tabular data at 4.21 mm
Filter Specifications
Transmission must be 37% between 567 nm and 578 nm (cut-off wavelength)
Transmission must be ³ 80% from 608 nm to 750 nm 
Transmission must be < 0.5% at wavelength shorter than 547 nm
Difference between 15% and 60% transmission must be < 15 nm
Physical Properties
Nominal Thickness Range 1.4 - 4.6 mm
Refractive Index nD = 1.49
Density 2.41 g/cm3
Thermal Linear Expansion 40E-7 /ºC (30-300 ºC)
Strain Temperature 438 ºC
Annealing Temperature 522 ºC
Deformation Temperature 714 ºC
Sharp Cut Red - 3480
Wavelength
Transmission
Wavelength
Transmission
Wavelength
Transmission
(nm)
(%)
(nm)
(%)
(nm)
(%)
200
0.00
435
0.00
670
88.20
205
0.00
440
0.00
675
88.30
210
0.00
445
0.00
680
88.49
215
0.00
450
0.00
685
88.41
220
0.00
455
0.00
690
88.39
225
0.00
460
0.00
695
88.43
230
0.00
465
0.00
700
88.44
235
0.00
470
0.00
705
88.39
240
0.00
475
0.00
710
88.29
245
0.00
480
0.00
715
88.26
250
0.00
485
0.00
720
88.20
255
0.00
490
0.00
725
88.11
260
0.00
495
0.00
730
88.03
265
0.00
500
0.00
735
87.84
270
0.00
505
0.00
740
87.84
275
0.00
510
0.00
745
87.78
280
0.00
515
0.00
750
87.56
285
0.00
520
0.00
755
87.35
290
0.00
525
0.00
760
87.25
295
0.00
530
0.00
765
87.13
300
0.00
535
0.00
770
87.02
305
0.00
540
0.01
775
86.85
310
0.00
545
0.04
780
86.74
315
0.00
550
0.27
785
86.67
320
0.00
555
1.92
790
86.40
325
0.00
560
10.59
795
86.22
330
0.00
565
31.72
800
86.08
335
0.00
570
53.92
805
86.09
340
0.00
575
67.51
810
85.83
345
0.00
580
74.40
815
85.64
350
0.00
585
77.99
820
85.57
355
0.00
590
80.15
825
85.44
360
0.00
595
81.65
830
85.22
365
0.00
600
82.77
835
85.09
370
0.00
605
83.53
840
84.88
375
0.00
610
84.29
845
84.97
380
0.00
615
84.92
850
84.65
385
0.00
620
85.51
855
84.65
390
0.00
625
86.00
860
84.41
395
0.00
630
86.34
865
84.47
400
0.00
635
86.66
870
84.53
405
0.00
640
86.99
875
83.97
410
0.00
645
87.25
880
84.31
415
0.00
650
87.50
885
83.06
420
0.00
655
87.71
890
83.95
425
0.00
660
87.98
895
83.57
430
0.00
665
88.05
900
81.38

Back to Kopp Standard Filters