K-LaKn11 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.658303 n_e = 1.661239	V_d = 53.41 V_e = 53.12	n_F - n_C = 0.012323 n_F' - n_C' = 0.012445	Coloring: 0.33 - 0.38 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.70263 C2 = -0.012962817 C3 = 0.01545816 C4 = 0.0010740632 C5 = -0.000096733393 C6 = 0.0000053903883

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.644770
n _s	1.648123
n _r	1.652497
n _C	1.654591
n _C'	1.655180
n _0.6328	1.655730
n _D	1.658194
n _d	1.658303
n _e	1.661239
n _F	1.666915
n _F'	1.667625
n _g	1.673720
n _h	1.679414
n _i	1.689270
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7969
P_C,A'	0.3398
P_d,C	0.3012
P_e,C	0.5393
P_g,d	1.2509
P_g,F	0.5522
P_h,g	0.4620
P_i,g	1.2617
P_C',t	0.8447
P_e,C'	0.4916
P_F',e	0.5182
P_i,F'	1.7563

transmittance: 10 mm
τ_0.33	0.02
τ_0.34	0.187
τ_0.35	0.516
τ_0.36	0.743
τ_0.37	0.86
τ_0.38	0.919
τ_0.39	0.946
τ_0.4	0.964
τ_0.42	0.975
τ_0.44	0.981
τ_0.46	0.985
τ_0.48	0.985
τ_0.5	0.988
τ_0.55	0.99
τ_0.6	0.994
τ_0.65	0.995
τ_0.7	0.997
τ_0.8	0.998
τ_1.06	0.998
τ_1.5	0.998
τ₂	0.975

transmittance: 25 mm
τ_0.34	0.02
τ_0.35	0.192
τ_0.36	0.477
τ_0.37	0.686
τ_0.38	0.81
τ_0.39	0.87
τ_0.4	0.913
τ_0.42	0.94
τ_0.44	0.954
τ_0.46	0.964
τ_0.48	0.964
τ_0.5	0.971
τ_0.55	0.975
τ_0.6	0.985
τ_0.65	0.989
τ_0.7	0.992
τ_0.8	0.996
τ_1.06	0.996
τ_1.5	0.996
τ₂	0.94

Poisson coef.: 0.278
Rigidity: 358 Pa*10⁸
Young module: 915 Pa*10⁸
Knoop hardness: 556
Abrasion: 150

Climatic resistance: 1
Resistance to acids: 5

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	82