Kopp 4784  
Note: Graph and tabular data at 5.02 mm
Filter Specifications
Transmission at 550 nm must be between 55% and 70% 
The difference between 15% and 60% transmission must be 48 - 58 nm
Physical Properties
Nominal Thickness Range 4.9 - 5.1 mm
Refractive Index nD = 1.52
Density 2.63 g/cm3
Thermal Linear Expansion 57E-7 /ēC (30-300 ēC)
Strain Temperature 565 ēC
Annealing Temperature 604 ēC
Deformation Temperature 785 ēC
                   
                   
    Kopp 4784  
Wavelength Transmission Wavelength Transmission Wavelength Transmission
(nm) (%) (nm) (%) (nm) (%)
200 0.00 435 67.63 670 0.54
205 0.00 440 68.67 675 0.39
210 0.00 445 69.78 680 0.28
215 0.00 450 70.90 685 0.20
220 0.00 455 71.86 690 0.14
225 0.00 460 72.77 695 0.10
230 0.00 465 73.80 700 0.07
235 0.00 470 74.68 705 0.05
240 0.00 475 75.55 710 0.04
245 0.00 480 76.22 715 0.03
250 0.00 485 76.94 720 0.02
255 0.00 490 77.49 725 0.01
260 0.00 495 77.93 730 0.01
265 0.00 500 78.17 735 0.01
270 0.00 505 78.24 740 0.00
275 0.00 510 78.02 745 0.00
280 0.00 515 77.64 750 0.00
285 0.00 520 76.88 755 0.00
290 0.00 525 75.75 760 0.00
295 0.00 530 74.51 765 0.00
300 0.00 535 72.77 770 0.00
305 0.00 540 70.55 775 0.00
310 0.00 545 67.93 780 0.00
315 0.00 550 64.78 785 0.00
320 0.00 555 61.16 790 0.00
325 0.00 560 57.06 795 0.00
330 0.04 565 52.60 800 0.00
335 0.35 570 47.60 805 0.00
340 1.52 575 42.70 810 0.00
345 4.36 580 37.87 815 0.00
350 9.05 585 33.11 820 0.00
355 15.21 590 28.72 825 0.00
360 21.86 595 24.50 830 0.00
365 28.30 600 20.58 835 0.00
370 34.23 605 17.07 840 0.00
375 39.46 610 13.94 845 0.00
380 43.93 615 11.25 850 0.00
385 48.04 620 8.97 855 0.00
390 51.30 625 7.07 860 0.00
395 54.24 630 5.51 865 0.00
400 56.59 635 4.26 870 0.00
405 58.68 640 3.25 875 0.00
410 60.60 645 2.46 880 0.00
415 62.28 650 1.85 885 0.00
420 63.95 655 1.38 890 0.00
425 65.24 660 1.02 895 0.00
430 66.44 665 0.74 900 0.00