K-PFK85 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.485630 n_e = 1.486991	V_d = 85.17 V_e = 84.73	n_F - n_C = 0.005701 n_F' - n_C' = 0.005747	Coloring: 0.29 - 0.34 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.1853008 C2 = -0.0047250328 C3 = 0.0078421625 C4 = 0.000085834419 C5 = -0.00000053779209 C6 = 0.000000066797559

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.479239
n _s	1.480821
n _r	1.482900
n _C	1.483890
n _C'	1.484167
n _0.6328	1.484426
n _D	1.485579
n _d	1.485630
n _e	1.486991
n _F	1.489592
n _F'	1.489915
n _g	1.492662
n _h	1.495189
n _i	1.499450
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8157
P_C,A'	0.3480
P_d,C	0.3050
P_e,C	0.5438
P_g,d	1.2333
P_g,F	0.5383
P_h,g	0.4432
P_i,g	1.1905
P_C',t	0.8642
P_e,C'	0.4952
P_F',e	0.5127
P_i,F'	1.6723

transmittance: 10 mm
τ_0.28	0.026
τ_0.29	0.084
τ_0.3	0.212
τ_0.31	0.376
τ_0.32	0.625
τ_0.33	0.791
τ_0.34	0.891
τ_0.35	0.947
τ_0.36	0.974
τ_0.37	0.978
τ_0.38	0.99
τ_0.39	0.992
τ_0.4	0.995
τ_0.42	0.995
τ_0.44	0.995
τ_0.46	0.995
τ_0.48	0.997
τ_0.5	0.998
τ_0.55	0.998
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	0.998
τ₂	0.998

transmittance: 25 mm
τ_0.3	0.02
τ_0.31	0.087
τ_0.32	0.309
τ_0.33	0.557
τ_0.34	0.751
τ_0.35	0.874
τ_0.36	0.937
τ_0.37	0.947
τ_0.38	0.975
τ_0.39	0.982
τ_0.4	0.989
τ_0.42	0.989
τ_0.44	0.989
τ_0.46	0.989
τ_0.48	0.992
τ_0.5	0.996
τ_0.55	0.996
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	0.996
τ₂	0.996

Poisson coef.: 0.306
Rigidity: 264 Pa*10⁸
Young module: 691 Pa*10⁸
Knoop hardness: 338
Abrasion: 470

Climatic resistance: 1
Resistance to acids: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	163