K-LaK14 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.696802 n_e = 1.699788	V_d = 55.65 V_e = 55.42	n_F - n_C = 0.012519 n_F' - n_C' = 0.012625	Coloring: 0.31 - 0.37 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.8259946 C2 = -0.012901534 C3 = 0.019085857 C4 = 0.00026486421 C5 = 0.0000027706905 C6 = 0.00000035443411

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.682719
n _s	1.686245
n _r	1.690822
n _C	1.692992
n _C'	1.693599
n _0.6328	1.694166
n _D	1.696691
n _d	1.696802
n _e	1.699788
n _F	1.705512
n _F'	1.706225
n _g	1.712319
n _h	1.717976
n _i	1.727640
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8205
P_C,A'	0.3477
P_d,C	0.3043
P_e,C	0.5427
P_g,d	1.2394
P_g,F	0.5437
P_h,g	0.4518
P_i,g	1.2237
P_C',t	0.8690
P_e,C'	0.4943
P_F',e	0.5141
P_i,F'	1.7105

transmittance: 10 mm
τ_0.31	0.054
τ_0.32	0.17
τ_0.33	0.34
τ_0.34	0.528
τ_0.35	0.682
τ_0.36	0.795
τ_0.37	0.873
τ_0.38	0.9
τ_0.39	0.918
τ_0.4	0.957
τ_0.42	0.968
τ_0.44	0.975
τ_0.46	0.98
τ_0.48	0.982
τ_0.5	0.985
τ_0.55	0.985
τ_0.6	0.99
τ_0.65	0.991
τ_0.7	0.994
τ_0.8	0.997
τ_1.06	0.997
τ_1.5	0.997
τ₂	0.968

transmittance: 25 mm
τ_0.32	0.012
τ_0.33	0.067
τ_0.34	0.203
τ_0.35	0.384
τ_0.36	0.564
τ_0.37	0.714
τ_0.38	0.77
τ_0.39	0.807
τ_0.4	0.896
τ_0.42	0.923
τ_0.44	0.94
τ_0.46	0.95
τ_0.48	0.957
τ_0.5	0.964
τ_0.55	0.964
τ_0.6	0.975
τ_0.65	0.978
τ_0.7	0.985
τ_0.8	0.992
τ_1.06	0.992
τ_1.5	0.992
τ₂	0.923

Poisson coef.: 0.289
Rigidity: 434 Pa*10⁸
Young module: 1119 Pa*10⁸
Knoop hardness: 634
Abrasion: 90

Climatic resistance: 1
Resistance to acids: 5

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	81