Kopp 4445  
Note: Graph and tabular data at 2.67 mm
Filter Specifications
Maximum transmission at 490 ± 5 nm
Transmission at 580 nm must be 15 ± 0.7% 
The difference between 15% and 60% transmission must be 63 ± 5 nm
Physical Properties
Nominal Thickness Range 2.1 - 2.9 mm
Refractive Index nD = 1.50
Density 2.40 g/cm3
Thermal Linear Expansion 58E-7 /șC (30-300 șC)
Strain Temperature 504 șC
Annealing Temperature 545 șC
Deformation Temperature 775 șC
                   
                   
    Kopp 4445  
Wavelength Transmission Wavelength Transmission Wavelength Transmission
(nm) (%) (nm) (%) (nm) (%)
200 0.00 435 44.52 670 0.47
205 0.00 440 47.28 675 0.41
210 0.00 445 50.06 680 0.36
215 0.00 450 52.60 685 0.31
220 0.00 455 55.03 690 0.28
225 0.00 460 57.20 695 0.25
230 0.00 465 59.17 700 0.22
235 0.00 470 60.81 705 0.21
240 0.00 475 62.27 710 0.19
245 0.00 480 63.39 715 0.18
250 0.00 485 64.08 720 0.17
255 0.00 490 64.51 725 0.17
260 0.00 495 64.53 730 0.16
265 0.00 500 64.11 735 0.16
270 0.00 505 63.07 740 0.16
275 0.00 510 61.65 745 0.15
280 0.00 515 59.68 750 0.16
285 0.00 520 57.16 755 0.16
290 0.00 525 54.23 760 0.16
295 0.00 530 50.79 765 0.16
300 0.00 535 47.15 770 0.17
305 0.00 540 43.18 775 0.18
310 0.00 545 39.09 780 0.18
315 0.00 550 35.00 785 0.19
320 0.00 555 30.95 790 0.20
325 0.00 560 27.06 795 0.21
330 0.00 565 23.42 800 0.23
335 0.00 570 20.08 805 0.24
340 0.00 575 17.02 810 0.26
345 0.00 580 14.36 815 0.27
350 0.01 585 12.03 820 0.29
355 0.06 590 9.99 825 0.32
360 0.25 595 8.25 830 0.34
365 0.74 600 6.81 835 0.36
370 1.74 605 5.58 840 0.39
375 3.44 610 4.57 845 0.42
380 5.85 615 3.73 850 0.46
385 9.00 620 3.05 855 0.50
390 12.64 625 2.48 860 0.53
395 16.48 630 2.03 865 0.57
400 20.41 635 1.66 870 0.63
405 24.20 640 1.37 875 0.70
410 27.96 645 1.12 880 0.73
415 31.52 650 0.93 885 0.75
420 34.97 655 0.78 890 0.84
425 38.36 660 0.65 895 0.94
430 41.53 665 0.55 900 0.95