K-PSKn2 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.617999 n_e = 1.620325	V_d = 63.36 V_e = 63.07	n_F - n_C = 0.009753 n_F' - n_C' = 0.009834	Coloring: 0.32 - 0.38 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.5811516 C2 = -0.011534491 C3 = 0.012703918 C4 = 0.00058195394 C5 = -0.000044244275 C6 = 0.0000021000343

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.606910
n _s	1.609741
n _r	1.613337
n _C	1.615030
n _C'	1.615503
n _0.6328	1.615945
n _D	1.617912
n _d	1.617999
n _e	1.620325
n _F	1.624783
n _F'	1.625338
n _g	1.630069
n _h	1.634439
n _i	1.641860
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8326
P_C,A'	0.3488
P_d,C	0.3044
P_e,C	0.5429
P_g,d	1.2375
P_g,F	0.5419
P_h,g	0.4480
P_i,g	1.2088
P_C',t	0.8811
P_e,C'	0.4944
P_F',e	0.5139
P_i,F'	1.6939

transmittance: 10 mm
τ_0.31	0.027
τ_0.32	0.1
τ_0.33	0.232
τ_0.34	0.431
τ_0.35	0.619
τ_0.36	0.772
τ_0.37	0.869
τ_0.38	0.923
τ_0.39	0.957
τ_0.4	0.971
τ_0.42	0.985
τ_0.44	0.988
τ_0.46	0.99
τ_0.48	0.99
τ_0.5	0.991
τ_0.55	0.994
τ_0.6	0.995
τ_0.65	0.997
τ_0.7	0.997
τ_0.8	0.998
τ_1.06	0.998
τ_1.5	0.998
τ₂	0.982

transmittance: 25 mm
τ_0.32	0.003
τ_0.33	0.026
τ_0.34	0.122
τ_0.35	0.301
τ_0.36	0.525
τ_0.37	0.705
τ_0.38	0.82
τ_0.39	0.896
τ_0.4	0.93
τ_0.42	0.964
τ_0.44	0.971
τ_0.46	0.975
τ_0.48	0.975
τ_0.5	0.978
τ_0.55	0.985
τ_0.6	0.989
τ_0.65	0.992
τ_0.7	0.992
τ_0.8	0.996
τ_1.06	0.996
τ_1.5	0.996
τ₂	0.957

Poisson coef.: 0.289
Rigidity: 298 Pa*10⁸
Young module: 769 Pa*10⁸
Knoop hardness: 407
Abrasion: 270

Climatic resistance: 1
Resistance to acids: 5

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	99