F4 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.616590 n_e = 1.620581	V_d = 36.61 V_e = 36.36	n_F - n_C = 0.016837 n_F' - n_C' = 0.017067	Coloring: 0.32 - 0.36 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.5446913 C2 = -0.0085741031 C3 = 0.022583001 C4 = 0.00073027237 C5 = -0.0000065715324 C6 = 0.0000035729091

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.599540
n _s	1.603417
n _r	1.608908
n _C	1.611642
n _C'	1.612418
n _0.6328	1.613147
n _D	1.616443
n _d	1.616590
n _e	1.620581
n _F	1.628480
n _F'	1.629485
n _g	1.638284
n _h	1.646787
n _i	1.662150
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7187
P_C,A'	0.3210
P_d,C	0.2938
P_e,C	0.5308
P_g,d	1.2884
P_g,F	0.5822
P_h,g	0.5050
P_i,g	1.4173
P_C',t	0.7648
P_e,C'	0.4847
P_F',e	0.5288
P_i,F'	1.9399

transmittance: 10 mm
τ_0.31	0.027
τ_0.32	0.299
τ_0.33	0.656
τ_0.34	0.837
τ_0.35	0.919
τ_0.36	0.957
τ_0.37	0.967
τ_0.38	0.98
τ_0.39	0.988
τ_0.4	0.988
τ_0.42	0.988
τ_0.44	0.99
τ_0.46	0.99
τ_0.48	0.994
τ_0.5	0.994
τ_0.55	0.995
τ_0.6	0.995
τ_0.65	0.995
τ_0.7	0.997
τ_0.8	0.998
τ_1.06	0.998
τ_1.5	0.995
τ₂	0.955

transmittance: 25 mm
τ_0.32	0.049
τ_0.33	0.349
τ_0.34	0.641
τ_0.35	0.81
τ_0.36	0.896
τ_0.37	0.92
τ_0.38	0.95
τ_0.39	0.971
τ_0.4	0.971
τ_0.42	0.971
τ_0.44	0.975
τ_0.46	0.975
τ_0.48	0.985
τ_0.5	0.985
τ_0.55	0.989
τ_0.6	0.989
τ_0.65	0.989
τ_0.7	0.992
τ_0.8	0.996
τ_1.06	0.996
τ_1.5	0.989
τ₂	0.88

Poisson coef.: 0.223
Rigidity: 230 Pa*10⁸
Young module: 562 Pa*10⁸
Knoop hardness: 452
Abrasion: 160

Climatic resistance: 1
Resistance to acids: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	96