Kopp 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
                   
    Kopp 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