Kopp 2600  
Note: Graph and tabular data at 2.85 mm
Filter Specifications
Transmission at 800 nm must be > 72%
Transmission at 1000 nm must be beween 28% and 40%
Physical Properties
Nominal Thickness Range 2.9 - 3.1 mm
Refractive Index nD = 1.54
Density 2.81 g/cm3
Thermal Linear Expansion 106E-7 /ºC (30-300 ºC)
Strain Temperature 431 ºC
Annealing Temperature 473 ºC
Deformation Temperature 650 ºC
                   
                   
    Kopp 2600  
Wavelength Transmission Wavelength Transmission Wavelength Transmission
(nm) (%) (nm) (%) (nm) (%)
200 0.00 435 0.00 670 0.00
205 0.00 440 0.00 675 0.00
210 0.00 445 0.00 680 0.00
215 0.00 450 0.00 685 0.00
220 0.00 455 0.00 690 0.00
225 0.00 460 0.00 695 0.00
230 0.00 465 0.00 700 0.01
235 0.00 470 0.00 705 0.18
240 0.00 475 0.00 710 1.45
245 0.00 480 0.00 715 5.88
250 0.00 485 0.00 720 14.94
255 0.00 490 0.00 725 27.50
260 0.00 495 0.00 730 41.04
265 0.00 500 0.00 735 53.18
270 0.00 505 0.00 740 62.81
275 0.00 510 0.00 745 69.78
280 0.00 515 0.00 750 74.46
285 0.00 520 0.00 755 77.58
290 0.00 525 0.00 760 79.53
295 0.00 530 0.00 765 80.55
300 0.00 535 0.00 770 81.20
305 0.00 540 0.00 775 81.52
310 0.00 545 0.00 780 81.47
315 0.00 550 0.00 785 81.47
320 0.00 555 0.00 790 81.26
325 0.00 560 0.00 795 81.23
330 0.00 565 0.00 800 80.66
335 0.00 570 0.00 805 80.24
340 0.00 575 0.00 810 79.97
345 0.00 580 0.00 815 79.34
350 0.00 585 0.00 820 78.80
355 0.00 590 0.00 825 78.34
360 0.00 595 0.00 830 77.74
365 0.00 600 0.00 835 77.24
370 0.00 605 0.00 840 76.81
375 0.00 610 0.00 845 76.06
380 0.00 615 0.00 850 75.29
385 0.00 620 0.00 855 74.88
390 0.00 625 0.00 860 74.20
395 0.00 630 0.00 865 73.19
400 0.00 635 0.00 870 72.58
405 0.00 640 0.00 875 72.17
410 0.00 645 0.00 880 71.09
415 0.00 650 0.00 885 70.57
420 0.00 655 0.00 890 69.03
425 0.00 660 0.00 895 69.49
430 0.00 665 0.00 900 69.32