BaSF1 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.626064 n_e = 1.629858	V_d = 39.11 V_e = 38.83	n_F - n_C = 0.016004 n_F' - n_C' = 0.016218	Coloring: 0.33 - 0.37 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.5784155 C2 = -0.0090384934 C3 = 0.022066715 C4 = 0.00048007095 C5 = 0.000033201301 C6 = 0.00000051943083

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.609680
n _s	1.613456
n _r	1.618737
n _C	1.621350
n _C'	1.622090
n _0.6328	1.622785
n _D	1.625924
n _d	1.626064
n _e	1.629858
n _F	1.637355
n _F'	1.638308
n _g	1.646638
n _h	1.654655
n _i	1.669000
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7291
P_C,A'	0.3233
P_d,C	0.2945
P_e,C	0.5315
P_g,d	1.2854
P_g,F	0.5800
P_h,g	0.5009
P_i,g	1.3972
P_C',t	0.7754
P_e,C'	0.4853
P_F',e	0.5280
P_i,F'	1.9176

transmittance: 10 mm
τ_0.33	0.066
τ_0.34	0.403
τ_0.35	0.688
τ_0.36	0.829
τ_0.37	0.901
τ_0.38	0.936
τ_0.39	0.957
τ_0.4	0.971
τ_0.42	0.98
τ_0.44	0.981
τ_0.46	0.982
τ_0.48	0.985
τ_0.5	0.988
τ_0.55	0.99
τ_0.6	0.991
τ_0.65	0.995
τ_0.7	0.997
τ_0.8	0.998
τ_1.06	0.995
τ_1.5	0.982
τ₂	0.951

transmittance: 25 mm
τ_0.34	0.103
τ_0.35	0.393
τ_0.36	0.625
τ_0.37	0.771
τ_0.38	0.848
τ_0.39	0.896
τ_0.4	0.93
τ_0.42	0.95
τ_0.44	0.954
τ_0.46	0.957
τ_0.48	0.964
τ_0.5	0.971
τ_0.55	0.975
τ_0.6	0.978
τ_0.65	0.989
τ_0.7	0.992
τ_0.8	0.996
τ_1.06	0.989
τ_1.5	0.957
τ₂	0.883

Poisson coef.: 0.234
Rigidity: 262 Pa*10⁸
Young module: 646 Pa*10⁸
Knoop hardness: 455
Abrasion: 160

Climatic resistance: 1
Resistance to acids: 1

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