Kopp IR Transmitting/VIS Absorbing - 2550

IR Transmitting/VIS Absorbing - 2550

Note: Graph and tabular data at 1.90 mm
Filter Specifications
Transmission at 750 nm must be 7.0 ± 1.2%
Transmission at 1000 nm must be > 73.2%

Physical Properties
Nominal Thickness Range	1.5 - 2.5 mm
Refractive Index	n_D = 1.52
Density	2.53 g/cm³
Thermal Linear Expansion	92E-7 /ºC (30-300 ºC)
Strain Temperature	461 ºC
Annealing Temperature	502 ºC
Deformation Temperature	670 ºC

IR Transmitting/VIS Absorbing - 2550
Wavelength	Transmission	Wavelength	Transmission	Wavelength	Transmission
(nm)	(%)	(nm)	(%)	(nm)	(%)
200	0.00	435	0.01	670	0.72
205	0.00	440	0.01	675	0.85
210	0.00	445	0.01	680	0.96
215	0.00	450	0.01	685	1.06
220	0.00	455	0.01	690	1.21
225	0.00	460	0.00	695	1.41
230	0.00	465	0.00	700	1.63
235	0.00	470	0.00	705	1.88
240	0.00	475	0.00	710	2.18
245	0.00	480	0.00	715	2.53
250	0.00	485	0.00	720	2.94
255	0.00	490	0.00	725	3.38
260	0.00	495	0.00	730	3.89
265	0.00	500	0.00	735	4.47
270	0.00	505	0.00	740	5.11
275	0.00	510	0.00	745	5.83
280	0.00	515	0.00	750	6.63
285	0.00	520	0.00	755	7.51
290	0.00	525	0.00	760	8.46
295	0.00	530	0.00	765	9.51
300	0.00	535	0.00	770	10.63
305	0.00	540	0.00	775	11.86
310	0.00	545	0.01	780	13.14
315	0.00	550	0.00	785	14.51
320	0.00	555	0.01	790	15.98
325	0.00	560	0.01	795	17.54
330	0.01	565	0.01	800	19.11
335	0.00	570	0.02	805	20.75
340	0.00	575	0.02	810	22.57
345	0.00	580	0.03	815	24.32
350	0.00	585	0.04	820	26.13
355	0.00	590	0.05	825	27.94
360	0.00	595	0.07	830	29.87
365	0.00	600	0.09	835	31.86
370	0.00	605	0.11	840	33.68
375	0.00	610	0.13	845	35.78
380	0.01	615	0.16	850	37.60
385	0.00	620	0.18	855	39.66
390	0.00	625	0.21	860	41.45
395	0.01	630	0.25	865	43.28
400	0.01	635	0.28	870	44.99
405	0.06	640	0.33	875	46.98
410	0.09	645	0.37	880	48.70
415	0.09	650	0.42	885	50.80
420	0.07	655	0.48	890	50.84
425	0.05	660	0.55	895	53.47
430	0.03	665	0.62	900	55.54

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