K-LaKn12 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.733505 n_e = 1.736918	V_d = 51.21 V_e = 50.97	n_F - n_C = 0.014321 n_F' - n_C' = 0.014456	Coloring: 0.31 - 0.38 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.9410903 C2 = -0.011791679 C3 = 0.022466126 C4 = 0.00034761977 C5 = -0.0000017639536 C6 = 0.0000010304373

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.717889
n _s	1.721664
n _r	1.726733
n _C	1.729177
n _C'	1.729864
n _0.6328	1.730506
n _D	1.733378
n _d	1.733505
n _e	1.736918
n _F	1.743499
n _F'	1.744321
n _g	1.751368
n _h	1.757940
n _i	1.769249
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7882
P_C,A'	0.3408
P_d,C	0.3021
P_e,C	0.5405
P_g,d	1.2473
P_g,F	0.5494
P_h,g	0.4589
P_i,g	1.2485
P_C',t	0.8361
P_e,C'	0.4925
P_F',e	0.5168
P_i,F'	1.7406

transmittance: 10 mm
τ_0.3	0.017
τ_0.31	0.079
τ_0.32	0.196
τ_0.33	0.371
τ_0.34	0.54
τ_0.35	0.701
τ_0.36	0.812
τ_0.37	0.887
τ_0.38	0.936
τ_0.39	0.961
τ_0.4	0.974
τ_0.42	0.985
τ_0.44	0.988
τ_0.46	0.99
τ_0.48	0.995
τ_0.5	0.995
τ_0.55	0.997
τ_0.6	0.997
τ_0.65	0.998
τ_0.7	0.998
τ_0.8	0.998
τ_1.06	0.998
τ_1.5	0.998
τ₂	0.975

transmittance: 25 mm
τ_0.32	0.017
τ_0.33	0.084
τ_0.34	0.214
τ_0.35	0.411
τ_0.36	0.595
τ_0.37	0.742
τ_0.38	0.848
τ_0.39	0.906
τ_0.4	0.937
τ_0.42	0.964
τ_0.44	0.971
τ_0.46	0.975
τ_0.48	0.989
τ_0.5	0.989
τ_0.55	0.992
τ_0.6	0.992
τ_0.65	0.996
τ_0.7	0.996
τ_0.8	0.996
τ_1.06	0.996
τ_1.5	0.996
τ₂	0.94

Poisson coef.: 0.295
Rigidity: 428 Pa*10⁸
Young module: 1108 Pa*10⁸
Knoop hardness: 620
Abrasion: 100

Climatic resistance: 1
Resistance to acids: 4

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	87