K-LaK11 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.658303 n_e = 1.661043	V_d = 57.28 V_e = 57.02	n_F - n_C = 0.011491 n_F' - n_C' = 0.011592	Coloring: 0.29 - 0.36 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.7018666 C2 = -0.010913442 C3 = 0.017216977 C4 = 0.00021856992 C5 = 0.0000069561279 C6 = -0.000000031596063

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.645480
n _s	1.648662
n _r	1.652828
n _C	1.654812
n _C'	1.655368
n _0.6328	1.655887
n _D	1.658201
n _d	1.658303
n _e	1.661043
n _F	1.666304
n _F'	1.666960
n _g	1.672567
n _h	1.677771
n _i	1.686649
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8121
P_C,A'	0.3459
P_d,C	0.3037
P_e,C	0.5421
P_g,d	1.2412
P_g,F	0.5449
P_h,g	0.4528
P_i,g	1.2254
P_C',t	0.8604
P_e,C'	0.4938
P_F',e	0.5148
P_i,F'	1.7133

transmittance: 10 mm
τ_0.28	0.012
τ_0.29	0.069
τ_0.3	0.183
τ_0.31	0.345
τ_0.32	0.5
τ_0.33	0.666
τ_0.34	0.778
τ_0.35	0.864
τ_0.36	0.916
τ_0.37	0.948
τ_0.38	0.964
τ_0.39	0.971
τ_0.4	0.98
τ_0.42	0.983
τ_0.44	0.985
τ_0.46	0.988
τ_0.48	0.99
τ_0.5	0.99
τ_0.55	0.992
τ_0.6	0.994
τ_0.65	0.995
τ_0.7	0.997
τ_0.8	0.998
τ_1.06	0.997
τ_1.5	0.99
τ₂	0.96

transmittance: 25 mm
τ_0.3	0.014
τ_0.31	0.069
τ_0.32	0.177
τ_0.33	0.363
τ_0.34	0.534
τ_0.35	0.695
τ_0.36	0.804
τ_0.37	0.875
τ_0.38	0.914
τ_0.39	0.931
τ_0.4	0.951
τ_0.42	0.958
τ_0.44	0.965
τ_0.46	0.972
τ_0.48	0.975
τ_0.5	0.975
τ_0.55	0.982
τ_0.6	0.985
τ_0.65	0.991
τ_0.7	0.992
τ_0.8	0.996
τ_1.06	0.992
τ_1.5	0.975
τ₂	0.904

Poisson coef.: 0.266
Rigidity: 355 Pa*10⁸
Young module: 899 Pa*10⁸
Knoop hardness: 542
Abrasion: 160

Climatic resistance: 1
Resistance to acids: 4

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	85