Kopp 4308  
Note: Graph and tabular data at 3.90 mm
Filter Specifications
Transmission at 605 nm must be 15 ± 0.7%
The difference between 15% and 60% transmission must be 64 - 74 nm
Maximum transmission must be at 462 ± 5 nm
Physical Properties
Nominal Thickness Range 3.5 - 4.5 mm
Refractive Index nD = 1.51
Density 2.50 g/cm3
Thermal Linear Expansion 95E-7 /șC (30-300 șC)
Strain Temperature 474 șC
Annealing Temperature 511 șC
Deformation Temperature 685 șC
                   
                   
    Kopp 4308  
Wavelength Transmission Wavelength Transmission Wavelength Transmission
(nm) (%) (nm) (%) (nm) (%)
200 0.00 435 83.13 670 2.68
205 0.00 440 83.81 675 2.39
210 0.00 445 84.44 680 2.13
215 0.00 450 84.90 685 1.92
220 0.00 455 85.38 690 1.73
225 0.00 460 85.58 695 1.57
230 0.00 465 85.71 700 1.44
235 0.00 470 85.70 705 1.32
240 0.00 475 85.45 710 1.22
245 0.00 480 85.07 715 1.13
250 0.00 485 84.48 720 1.05
255 0.00 490 83.62 725 0.99
260 0.00 495 82.60 730 0.93
265 0.00 500 81.26 735 0.88
270 0.00 505 79.46 740 0.84
275 0.00 510 77.47 745 0.81
280 0.00 515 75.16 750 0.78
285 0.00 520 72.43 755 0.76
290 0.00 525 69.42 760 0.73
295 0.00 530 66.09 765 0.72
300 0.00 535 62.52 770 0.70
305 0.00 540 58.76 775 0.70
310 0.00 545 55.05 780 0.69
315 0.00 550 51.14 785 0.68
320 0.02 555 47.14 790 0.68
325 0.24 560 43.25 795 0.68
330 1.40 565 39.28 800 0.68
335 4.89 570 35.52 805 0.69
340 11.62 575 31.92 810 0.70
345 21.24 580 28.53 815 0.71
350 32.16 585 25.34 820 0.72
355 41.85 590 22.47 825 0.73
360 50.64 595 19.83 830 0.75
365 57.17 600 17.48 835 0.77
370 62.33 605 15.35 840 0.81
375 65.81 610 13.44 845 0.81
380 68.36 615 11.75 850 0.84
385 71.29 620 10.24 855 0.87
390 73.91 625 8.91 860 0.88
395 75.79 630 7.74 865 0.93
400 77.25 635 6.74 870 0.99
405 78.34 640 5.85 875 1.00
410 79.12 645 5.11 880 1.03
415 80.03 650 4.45 885 1.15
420 80.88 655 3.90 890 1.15
425 81.80 660 3.43 895 1.14
430 82.52 665 3.03 900 1.18