Kopp 9863  
Note: Graph and tabular data at 3.00 mm
Filter Specifications
Transmission must be > 40% at 254 nm
Physical Properties
Nominal Thickness Range 2.9 - 3.1 mm
Refractive Index nD = 1.55
Density 2.86 g/cm3
Thermal Linear Expansion 97E-7 /C (30-300 C)
Strain Temperature 454 C
Annealing Temperature 498 C
Deformation Temperature 517 C
                   
    Kopp 9863  
Wavelength Transmission Wavelength Transmission Wavelength Transmission
(nm) (%) (nm) (%) (nm) (%)
200 0.00 435 0.03 670 0.23
205 0.00 440 0.02 675 0.96
210 0.00 445 0.02 680 2.89
215 0.00 450 0.02 685 6.70
220 0.00 455 0.02 690 12.45
225 0.00 460 0.02 695 19.28
230 0.01 465 0.01 700 25.95
235 0.40 470 0.01 705 31.61
240 4.03 475 0.00 710 36.00
245 14.29 480 0.00 715 39.18
250 28.99 485 0.00 720 40.80
255 42.96 490 0.00 725 41.09
260 53.73 495 0.00 730 40.27
265 61.02 500 0.00 735 38.82
270 66.52 505 0.00 740 37.11
275 72.23 510 0.00 745 35.17
280 75.63 515 0.00 750 32.95
285 77.98 520 0.00 755 30.93
290 80.15 525 0.00 760 29.07
295 81.25 530 0.00 765 27.15
300 82.16 535 0.00 770 25.64
305 82.77 540 0.00 775 24.10
310 83.35 545 0.00 780 22.63
315 83.39 550 0.00 785 21.45
320 83.67 555 0.00 790 20.25
325 84.30 560 0.00 795 19.32
330 83.50 565 0.00 800 18.45
335 84.13 570 0.00 805 17.51
340 84.23 575 0.00 810 17.02
345 83.29 580 0.00 815 16.35
350 82.92 585 0.00 820 15.77
355 82.80 590 0.00 825 15.36
360 80.60 595 0.00 830 14.87
365 78.26 600 0.00 835 14.55
370 74.85 605 0.00 840 14.18
375 68.90 610 0.00 845 13.98
380 60.03 615 0.00 850 13.71
385 47.46 620 0.00 855 13.45
390 32.42 625 0.00 860 13.29
395 18.38 630 0.00 865 13.22
400 8.57 635 0.00 870 12.98
405 3.39 640 0.00 875 12.73
410 1.23 645 0.00 880 12.87
415 0.45 650 0.00 885 12.90
420 0.18 655 0.00 890 12.66
425 0.08 660 0.01 895 11.94
430 0.04 665 0.04 900 12.47