K-PBK50 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

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Main parameters
n_d = 1.522501 n_e = 1.524505	V_d = 62.22 V_e = 62.03	n_F - n_C = 0.008396 n_F' - n_C' = 0.008454	Coloring: 0.29 - 0.34 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.2871694 C2 = -0.010127516 C3 = 0.01150249 C4 = 0.00010619951 C5 = 0.0000054365429 C6 = -0.000000043955731

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.512630
n _s	1.515213
n _r	1.518428
n _C	1.519918
n _C'	1.520332
n _0.6328	1.520718
n _D	1.522426
n _d	1.522501
n _e	1.524505
n _F	1.528315
n _F'	1.528787
n _g	1.532808
n _h	1.536520
n _i	1.542820
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8681
P_C,A'	0.3583
P_d,C	0.3076
P_e,C	0.5462
P_g,d	1.2275
P_g,F	0.5351
P_h,g	0.4420
P_i,g	1.1923
P_C',t	0.9173
P_e,C'	0.4969
P_F',e	0.5100
P_i,F'	1.6712

transmittance: 10 mm
τ_0.27	0.009
τ_0.28	0.017
τ_0.29	0.078
τ_0.3	0.232
τ_0.31	0.453
τ_0.32	0.658
τ_0.33	0.803
τ_0.34	0.891
τ_0.35	0.942
τ_0.36	0.972
τ_0.37	0.982
τ_0.38	0.988
τ_0.39	0.993
τ_0.4	0.993
τ_0.42	0.993
τ_0.44	0.993
τ_0.46	0.995
τ_0.48	0.995
τ_0.5	0.996
τ_0.55	0.997
τ_0.6	0.998
τ_0.65	0.998
τ_0.7	0.998
τ_0.8	0.998
τ_1.06	0.998
τ_1.5	0.995
τ₂	0.964

transmittance: 25 mm
τ_0.29	0.001
τ_0.3	0.026
τ_0.31	0.138
τ_0.32	0.351
τ_0.33	0.578
τ_0.34	0.751
τ_0.35	0.862
τ_0.36	0.933
τ_0.37	0.956
τ_0.38	0.972
τ_0.39	0.983
τ_0.4	0.983
τ_0.42	0.983
τ_0.44	0.983
τ_0.46	0.989
τ_0.48	0.989
τ_0.5	0.992
τ_0.55	0.993
τ_0.6	0.996
τ_0.65	0.996
τ_0.7	0.996
τ_0.8	0.996
τ_1.06	0.996
τ_1.5	0.988
τ₂	0.914

Poisson coef.: 0.222
Rigidity: 312 Pa*10⁸
Young module: 762 Pa*10⁸
Knoop hardness: 514
Abrasion: 87

Climatic resistance: 1
Resistance to acids: 4

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	92