S-FPL51 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.496998 n_e = 1.498454	V_d = 81.54 V_e = 81.13	n_F - n_C = 0.006095 n_F' - n_C' = 0.006143	Coloring: 0.29 - 0.34 mkm.

Type: Sellmeier
Spectral range: 0.3650146 - 2.325 mkm.
C1 = 1.21225554 C2 = 0.00570831551 C3 = 1.53884937 C4 = 0.00734598694 C5 = -0.11386737 C6 = 280.228168

Refraction index
n _2.3254	-----
n _1.9701	1.482729
n _1.5296	1.486122
n _1.06	1.489705
n _t	1.490117
n _s	1.491838
n _r	1.494076
n _C	1.495137
n _C'	1.495434
n _0.6328	1.495711
n _D	1.496944
n _d	1.496998
n _e	1.498454
n _F	1.501232
n _F'	1.501577
n _g	1.504509
n _h	1.507203
n _i	1.511733
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8235
P_C,A'	0.3493
P_d,C	0.3053
P_e,C	0.5441
P_g,d	1.2321
P_g,F	0.5375
P_h,g	0.4419
P_i,g	1.1853
P_C',t	0.8722
P_e,C'	0.4954
P_F',e	0.5124
P_i,F'	1.6663

transmittance: 10 mm
τ_0.28	0.01
τ_0.29	0.05
τ_0.3	0.14
τ_0.31	0.33
τ_0.32	0.55
τ_0.33	0.74
τ_0.34	0.86
τ_0.35	0.937
τ_0.36	0.97
τ_0.37	0.985
τ_0.38	0.992
τ_0.39	0.995
τ_0.4	0.995
τ_0.42	0.993
τ_0.44	0.994
τ_0.46	0.996
τ_0.48	0.997
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	0.997
τ_1.4	0.997
τ_1.6	0.997
τ_1.8	0.997
τ₂	0.996
τ_2.2	0.995
τ_2.4	0.992
τ_2.5	0.3
τ_2.3254	0.6
τ_1.9701	0.92
τ_1.5296	0.976
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	0.991
τ_0.365	0.95
τ_0.3341	0.76

transmittance: 25 mm
τ_2.5	0.05
τ_2.3254	0.28
τ_1.9701	0.81
τ_1.5296	0.94
τ_1.06	0.995
τ_0.7	0.995
τ_0.66	0.995
τ_0.62	0.995
τ_0.58	0.995
τ_0.54607	0.995
τ_0.5	0.995
τ_0.46	0.992
τ_0.4358	0.989
τ_0.42	0.986
τ_0.4047	0.978
τ_0.4	0.974
τ_0.39	0.962
τ_0.38	0.93
τ_0.37	0.9
τ_0.365	0.88
τ_0.35	0.72
τ_0.3341	0.51
τ_0.32	0.15
τ_0.31	0.03

Poisson coef.: 0.299
Rigidity: 281 Pa*10⁸
Young module: 729 Pa*10⁸
Knoop hardness: 350
Abrasion: 439

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	133
100 ~ 300	156
20 ~ 300	55

Temperature coefs. of n_abs
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20		2.1
20 ~ 40		3.2
60 ~ 80		3.5
-40 ~ -20	e	2.8
20 ~ 40	e	4
60 ~ 80	e	4.4
-40 ~ -20	g	3.5
20 ~ 40	g	5
60 ~ 80	g	5.5

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	-5.9
-20 ~ 0	t	-6.1
0 ~ 20	t	-6.3
20 ~ 40	t	-6.5
40 ~ 60	t	-6.7
60 ~ 80	t	-6.9
-40 ~ -20	C'	-5.8
-20 ~ 0	C'	-6
0 ~ 20	C'	-6.2
20 ~ 40	C'	-6.4
40 ~ 60	C'	-6.6
60 ~ 80	C'	-6.8
-40 ~ -20		-5.8
-20 ~ 0		-6
0 ~ 20		-6.2
20 ~ 40		-6.4
40 ~ 60		-6.6
60 ~ 80		-6.8
-40 ~ -20	D	-5.7
-20 ~ 0	D	-5.9
0 ~ 20	D	-6.1
20 ~ 40	D	-6.3
40 ~ 60	D	-6.5
60 ~ 80	D	-6.7
-40 ~ -20	e	-5.6
-20 ~ 0	e	-5.8
0 ~ 20	e	-6
20 ~ 40	e	-6.2
40 ~ 60	e	-6.4
60 ~ 80	e	-6.6
-40 ~ -20	F	-5.5
-20 ~ 0	F	-5.7
0 ~ 20	F	-5.9
20 ~ 40	F	-6.1
40 ~ 60	F	-6.3
60 ~ 80	F	-6.5
-40 ~ -20	g	-5.4
-20 ~ 0	g	-5.6
0 ~ 20	g	-5.8
20 ~ 40	g	-6
40 ~ 60	g	-6.2
60 ~ 80	g	-6.4
-40 ~ -20		4.3
20 ~ 40		4.6
60 ~ 80		4.6