KF5 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.523102 n_e = 1.525547	V_d = 50.92 V_e = 50.65	n_F - n_C = 0.010271 n_F' - n_C' = 0.010374	Coloring: 0.30 - 0.33 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.2805538 C2 = -0.0082026321 C3 = 0.013809438 C4 = 0.00023995092 C5 = 0.0000020338215 C6 = 0.00000079906252

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.511879
n _s	1.514622
n _r	1.518260
n _C	1.520008
n _C'	1.520499
n _0.6328	1.520958
n _D	1.523011
n _d	1.523102
n _e	1.525547
n _F	1.530279
n _F'	1.530873
n _g	1.535987
n _h	1.540801
n _i	1.549199
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7914
P_C,A'	0.3400
P_d,C	0.3012
P_e,C	0.5392
P_g,d	1.2544
P_g,F	0.5556
P_h,g	0.4687
P_i,g	1.2864
P_C',t	0.8391
P_e,C'	0.4914
P_F',e	0.5185
P_i,F'	1.7842

transmittance: 10 mm
τ_0.3	0.021
τ_0.31	0.241
τ_0.32	0.644
τ_0.33	0.853
τ_0.34	0.932
τ_0.35	0.964
τ_0.36	0.978
τ_0.37	0.982
τ_0.38	0.982
τ_0.39	0.988
τ_0.4	0.99
τ_0.42	0.99
τ_0.44	0.99
τ_0.46	0.991
τ_0.48	0.991
τ_0.5	0.994
τ_0.55	0.994
τ_0.6	0.995
τ_0.65	0.997
τ_0.7	0.997
τ_0.8	0.998
τ_1.06	0.995
τ_1.5	0.992
τ₂	0.922

transmittance: 25 mm
τ_0.31	0.028
τ_0.32	0.333
τ_0.33	0.672
τ_0.34	0.838
τ_0.35	0.913
τ_0.36	0.947
τ_0.37	0.957
τ_0.38	0.957
τ_0.39	0.971
τ_0.4	0.975
τ_0.42	0.975
τ_0.44	0.975
τ_0.46	0.978
τ_0.48	0.978
τ_0.5	0.985
τ_0.55	0.985
τ_0.6	0.989
τ_0.65	0.992
τ_0.7	0.992
τ_0.8	0.996
τ_1.06	0.989
τ_1.5	0.982
τ₂	0.817

Poisson coef.: 0.2
Rigidity: 264 Pa*10⁸
Young module: 634 Pa*10⁸
Knoop hardness: 469
Abrasion: 100

Climatic resistance: 1
Resistance to acids: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	84