S-FPL52 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.455998 n_e = 1.457204	V_d = 90.34 V_e = 89.92	n_F - n_C = 0.005047 n_F' - n_C' = 0.005084	Coloring: 0.30 - 0.34 mkm.

Type: Sellmeier
Spectral range: 0.3650146 - 2.325 mkm.
C1 = 1.08053735 C2 = 0.0209392205 C3 = 1.33017772 C4 = 0.00682878453 C5 = -0.0297206675 C6 = 272.281522

Refraction index
n _2.3254	-----
n _1.9701	1.443601
n _1.5296	1.446667
n _1.06	1.449838
n _t	1.450196
n _s	1.451673
n _r	1.453562
n _C	1.454450
n _C'	1.454697
n _0.6328	1.454928
n _D	1.455953
n _d	1.455998
n _e	1.457204
n _F	1.459497
n _F'	1.459781
n _g	1.462193
n _h	1.464405
n _i	1.468121
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8426
P_C,A'	0.3538
P_d,C	0.3068
P_e,C	0.5456
P_g,d	1.2272
P_g,F	0.5340
P_h,g	0.4382
P_i,g	1.1744
P_C',t	0.8917
P_e,C'	0.4966
P_F',e	0.5106
P_i,F'	1.6521

transmittance: 10 mm
τ_0.29	0.01
τ_0.3	0.06
τ_0.31	0.2
τ_0.32	0.42
τ_0.33	0.65
τ_0.34	0.81
τ_0.35	0.912
τ_0.36	0.956
τ_0.37	0.98
τ_0.38	0.991
τ_0.39	0.994
τ_0.4	0.995
τ_0.42	0.994
τ_0.44	0.995
τ_0.46	0.996
τ_0.48	0.998
τ_0.5	0.998
τ_0.55	0.999
τ_0.6	0.999
τ_0.65	0.998
τ_0.7	0.998
τ_0.8	0.998
τ_0.9	0.998
τ₁	0.998
τ_1.2	0.998
τ_1.4	0.998
τ_1.6	0.998
τ_1.8	0.998
τ₂	0.998
τ_2.2	0.997
τ_2.4	0.997
τ_2.5	0.81
τ_2.3254	0.86
τ_1.9701	0.95
τ_1.5296	0.995
τ_1.06	0.998
τ_0.66	0.998
τ_0.62	0.998
τ_0.58	0.998
τ_0.54607	0.998
τ_0.4358	0.996
τ_0.4047	0.994
τ_0.365	0.967
τ_0.3341	0.54

transmittance: 25 mm
τ_2.5	0.59
τ_2.3254	0.69
τ_1.9701	0.88
τ_1.5296	0.987
τ_1.06	0.996
τ_0.7	0.996
τ_0.66	0.995
τ_0.62	0.995
τ_0.58	0.995
τ_0.54607	0.995
τ_0.5	0.993
τ_0.46	0.991
τ_0.4358	0.989
τ_0.42	0.987
τ_0.4047	0.984
τ_0.4	0.982
τ_0.39	0.973
τ_0.38	0.96
τ_0.37	0.94
τ_0.365	0.92
τ_0.35	0.78
τ_0.3341	0.21

Poisson coef.: 0.298
Rigidity: 280 Pa*10⁸
Young module: 726 Pa*10⁸
Knoop hardness: 370
Abrasion: 395

Climatic resistance: 1
Resistance to acids: 52
Phosphate resistance: 4

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	124
100 ~ 300	159
20 ~ 300	92

Temperature coefs. of n_abs
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20		0.3
20 ~ 40		1.3
60 ~ 80		1.9
-40 ~ -20	e	1.6
20 ~ 40	e	3
60 ~ 80	e	3.7
-40 ~ -20	g	3.2
20 ~ 40	g	4.8
60 ~ 80	g	5.7

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	-4.8
-20 ~ 0	t	-5.1
0 ~ 20	t	-5.4
20 ~ 40	t	-5.7
40 ~ 60	t	-6
60 ~ 80	t	-6.3
-40 ~ -20	C'	-4.7
-20 ~ 0	C'	-5
0 ~ 20	C'	-5.3
20 ~ 40	C'	-5.6
40 ~ 60	C'	-5.9
60 ~ 80	C'	-6.2
-40 ~ -20		-4.7
-20 ~ 0		-5
0 ~ 20		-5.3
20 ~ 40		-5.6
40 ~ 60		-5.9
60 ~ 80		-6.2
-40 ~ -20	D	-4.7
-20 ~ 0	D	-5
0 ~ 20	D	-5.3
20 ~ 40	D	-5.6
40 ~ 60	D	-5.8
60 ~ 80	D	-6.1
-40 ~ -20	e	-4.6
-20 ~ 0	e	-4.9
0 ~ 20	e	-5.2
20 ~ 40	e	-5.5
40 ~ 60	e	-5.8
60 ~ 80	e	-6.1
-40 ~ -20	F	-4.5
-20 ~ 0	F	-4.8
0 ~ 20	F	-5.1
20 ~ 40	F	-5.4
40 ~ 60	F	-5.6
60 ~ 80	F	-5.9
-40 ~ -20	g	-4.3
-20 ~ 0	g	-4.6
0 ~ 20	g	-4.9
20 ~ 40	g	-5.2
40 ~ 60	g	-5.5
60 ~ 80	g	-5.8
-40 ~ -20		2.4
20 ~ 40		2.7
60 ~ 80		3