K3 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.518240 n_e = 1.520336	V_d = 58.91 V_e = 58.65	n_F - n_C = 0.008796 n_F' - n_C' = 0.008871	Coloring: 0.30 - 0.33 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.2697041 C2 = -0.0071334908 C3 = 0.013314295 C4 = -0.00023181828 C5 = 0.000056167533 C6 = -0.0000024785272

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.508359
n _s	1.510814
n _r	1.514033
n _C	1.515561
n _C'	1.515988
n _0.6328	1.516387
n _D	1.518161
n _d	1.518240
n _e	1.520336
n _F	1.524358
n _F'	1.524859
n _g	1.529152
n _h	1.533149
n _i	1.539970
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8186
P_C,A'	0.3485
P_d,C	0.3045
P_e,C	0.5428
P_g,d	1.2405
P_g,F	0.5450
P_h,g	0.4542
P_i,g	1.2297
P_C',t	0.8672
P_e,C'	0.4943
P_F',e	0.5141
P_i,F'	1.7177

transmittance: 10 mm
τ_0.3	0.017
τ_0.31	0.241
τ_0.32	0.57
τ_0.33	0.792
τ_0.34	0.908
τ_0.35	0.957
τ_0.36	0.98
τ_0.37	0.982
τ_0.38	0.985
τ_0.39	0.991
τ_0.4	0.994
τ_0.42	0.992
τ_0.44	0.992
τ_0.46	0.995
τ_0.48	0.995
τ_0.5	0.995
τ_0.55	0.997
τ_0.6	0.997
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	0.912

transmittance: 25 mm
τ_0.31	0.028
τ_0.32	0.245
τ_0.33	0.559
τ_0.34	0.786
τ_0.35	0.896
τ_0.36	0.95
τ_0.37	0.957
τ_0.38	0.964
τ_0.39	0.978
τ_0.4	0.985
τ_0.42	0.982
τ_0.44	0.982
τ_0.46	0.989
τ_0.48	0.989
τ_0.5	0.989
τ_0.55	0.992
τ_0.6	0.992
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	0.795

Poisson coef.: 0.223
Rigidity: 286 Pa*10⁸
Young module: 700 Pa*10⁸
Knoop hardness: 549
Abrasion: 120

Climatic resistance: 1
Resistance to acids: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	106