K-LaK13 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.693511 n_e = 1.696608	V_d = 53.34 V_e = 53.07	n_F - n_C = 0.012999 n_F' - n_C' = 0.013123	Coloring: 0.32 - 0.37 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.8106459 C2 = -0.010211215 C3 = 0.02047301 C4 = 0.000097897189 C5 = 0.00003378933 C6 = -0.0000011893964

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.679339
n _s	1.682764
n _r	1.687367
n _C	1.689585
n _C'	1.690208
n _0.6328	1.690791
n _D	1.693396
n _d	1.693511
n _e	1.696608
n _F	1.702584
n _F'	1.703332
n _g	1.709741
n _h	1.715720
n _i	1.725969
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7881
P_C,A'	0.3407
P_d,C	0.3020
P_e,C	0.5402
P_g,d	1.2485
P_g,F	0.5505
P_h,g	0.4599
P_i,g	1.2484
P_C',t	0.8360
P_e,C'	0.4923
P_F',e	0.5171
P_i,F'	1.7414

transmittance: 10 mm
τ_0.32	0.13
τ_0.33	0.403
τ_0.34	0.65
τ_0.35	0.799
τ_0.36	0.883
τ_0.37	0.933
τ_0.38	0.96
τ_0.39	0.971
τ_0.4	0.978
τ_0.42	0.985
τ_0.44	0.985
τ_0.46	0.99
τ_0.48	0.99
τ_0.5	0.99
τ_0.55	0.992
τ_0.6	0.995
τ_0.65	0.995
τ_0.7	0.995
τ_0.8	0.998
τ_1.06	0.998
τ_1.5	0.995
τ₂	0.971

transmittance: 25 mm
τ_0.33	0.103
τ_0.34	0.341
τ_0.35	0.571
τ_0.36	0.733
τ_0.37	0.842
τ_0.38	0.903
τ_0.39	0.93
τ_0.4	0.947
τ_0.42	0.964
τ_0.44	0.964
τ_0.46	0.975
τ_0.48	0.975
τ_0.5	0.975
τ_0.55	0.982
τ_0.6	0.989
τ_0.65	0.989
τ_0.7	0.989
τ_0.8	0.996
τ_1.06	0.996
τ_1.5	0.989
τ₂	0.93

Poisson coef.: 0.274
Rigidity: 353 Pa*10⁸
Young module: 899 Pa*10⁸
Knoop hardness: 560
Abrasion: 160

Climatic resistance: 1
Resistance to acids: 4

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	89