KzFS4 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.613400 n_e = 1.616727	V_d = 43.80 V_e = 43.57	n_F - n_C = 0.014003 n_F' - n_C' = 0.014151	Coloring: 0.32 - 0.37 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.5481255 C2 = -0.013018925 C3 = 0.01920199 C4 = 0.00042939978 C5 = 0.0000042019946 C6 = 0.0000014610142

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.598069
n _s	1.601857
n _r	1.606821
n _C	1.609196
n _C'	1.609862
n _0.6328	1.610485
n _D	1.613276
n _d	1.613400
n _e	1.616727
n _F	1.623199
n _F'	1.624014
n _g	1.631066
n _h	1.637761
n _i	1.649579
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7945
P_C,A'	0.3391
P_d,C	0.3002
P_e,C	0.5378
P_g,d	1.2615
P_g,F	0.5617
P_h,g	0.4781
P_i,g	1.3220
P_C',t	0.8421
P_e,C'	0.4902
P_F',e	0.5203
P_i,F'	1.8256

transmittance: 10 mm
τ_0.31	0.013
τ_0.32	0.241
τ_0.33	0.528
τ_0.34	0.714
τ_0.35	0.826
τ_0.36	0.894
τ_0.37	0.936
τ_0.38	0.963
τ_0.39	0.975
τ_0.4	0.982
τ_0.42	0.991
τ_0.44	0.992
τ_0.46	0.995
τ_0.48	0.997
τ_0.5	0.998
τ_0.55	0.998
τ_0.6	0.998
τ_0.65	0.998
τ_0.7	0.998
τ_0.8	0.998
τ_1.06	0.998
τ_1.5	0.994
τ₂	0.922

transmittance: 25 mm
τ_0.32	0.028
τ_0.33	0.203
τ_0.34	0.43
τ_0.35	0.62
τ_0.36	0.756
τ_0.37	0.848
τ_0.38	0.91
τ_0.39	0.94
τ_0.4	0.957
τ_0.42	0.978
τ_0.44	0.982
τ_0.46	0.989
τ_0.48	0.992
τ_0.5	0.996
τ_0.55	0.996
τ_0.6	0.996
τ_0.65	0.996
τ_0.7	0.996
τ_0.8	0.996
τ_1.06	0.996
τ_1.5	0.985
τ₂	0.817

Poisson coef.: 0.257
Rigidity: 247 Pa*10⁸
Young module: 620 Pa*10⁸
Knoop hardness: 399
Abrasion: 90

Climatic resistance: 1
Resistance to acids: 4

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	49