S-FPL53 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.438749 n_e = 1.439853	V_d = 94.99 V_e = 94.53	n_F - n_C = 0.004618 n_F' - n_C' = 0.004652	Coloring: 0.29 - 0.34 mkm.

Type: Sellmeier
Spectral range: 0.3650146 - 2.325 mkm.
C1 = 1.04505995 C2 = 0.00816073868 C3 = 2.71674055 C4 = 0.00629473266 C5 = -0.0567620722 C6 = 635.803555

Refraction index
n _2.3254	-----
n _1.9701	1.427625
n _1.5296	1.430319
n _1.06	1.433145
n _t	1.433468
n _s	1.434803
n _r	1.436523
n _C	1.437334
n _C'	1.437560
n _0.6328	1.437771
n _D	1.438708
n _d	1.438749
n _e	1.439853
n _F	1.441952
n _F'	1.442212
n _g	1.444420
n _h	1.446444
n _i	1.449839
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8370
P_C,A'	0.3527
P_d,C	0.3065
P_e,C	0.5454
P_g,d	1.2276
P_g,F	0.5342
P_h,g	0.4381
P_i,g	1.1733
P_C',t	0.8859
P_e,C'	0.4964
P_F',e	0.5108
P_i,F'	1.6513

transmittance: 10 mm
τ_0.28	0.02
τ_0.29	0.07
τ_0.3	0.21
τ_0.31	0.42
τ_0.32	0.64
τ_0.33	0.8
τ_0.34	0.905
τ_0.35	0.956
τ_0.36	0.98
τ_0.37	0.99
τ_0.38	0.995
τ_0.39	0.996
τ_0.4	0.996
τ_0.42	0.995
τ_0.44	0.996
τ_0.46	0.997
τ_0.48	0.997
τ_0.5	0.997
τ_0.55	0.999
τ_0.6	0.999
τ_0.65	0.998
τ_0.7	0.998
τ_0.8	0.997
τ_0.9	0.996
τ₁	0.996
τ_1.2	0.996
τ_1.4	0.996
τ_1.6	0.996
τ_1.8	0.995
τ₂	0.996
τ_2.2	0.993
τ_2.4	0.994
τ_2.3254	0.8
τ_1.9701	0.967
τ_1.5296	0.992
τ_1.06	0.996
τ_0.66	0.996
τ_0.62	0.994
τ_0.58	0.994
τ_0.54607	0.992
τ_0.4358	0.971
τ_0.4047	0.93
τ_0.365	0.62

transmittance: 25 mm
τ_2.3254	0.57
τ_1.9701	0.92
τ_1.5296	0.98
τ_1.06	0.99
τ_0.7	0.99
τ_0.66	0.99
τ_0.62	0.985
τ_0.58	0.985
τ_0.54607	0.98
τ_0.5	0.97
τ_0.46	0.95
τ_0.4358	0.93
τ_0.42	0.9
τ_0.4047	0.83
τ_0.4	0.8
τ_0.39	0.72
τ_0.38	0.59
τ_0.37	0.41
τ_0.365	0.3
τ_0.35	0.05

Poisson coef.: 0.302
Rigidity: 267 Pa*10⁸
Young module: 694 Pa*10⁸
Knoop hardness: 360
Abrasion: 389

Climatic resistance: 2
Resistance to acids: 52
Phosphate resistance: 4

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	142
100 ~ 300	163
20 ~ 300	64

Temperature coefs. of n_abs
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20		5.6
20 ~ 40		6.7
60 ~ 80		7.2
-40 ~ -20	e	7.3
20 ~ 40	e	8.6
60 ~ 80	e	9.3
-40 ~ -20	g	9.1
20 ~ 40	g	10.7
60 ~ 80	g	11.5

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	C'	-6.1
-20 ~ 0	C'	-6.5
0 ~ 20	C'	-6.8
20 ~ 40	C'	-7.1
40 ~ 60	C'	-7.4
60 ~ 80	C'	-7.7
-40 ~ -20	D	-6
-20 ~ 0	D	-6.4
0 ~ 20	D	-6.8
20 ~ 40	D	-7.1
40 ~ 60	D	-7.3
60 ~ 80	D	-7.6
-40 ~ -20	e	-6
-20 ~ 0	e	-6.4
0 ~ 20	e	-6.8
20 ~ 40	e	-7
40 ~ 60	e	-7.3
60 ~ 80	e	-7.5
-40 ~ -20	F	-5.9
-20 ~ 0	F	-6.3
0 ~ 20	F	-6.6
20 ~ 40	F	-6.9
40 ~ 60	F	-7.2
60 ~ 80	F	-7.4
-40 ~ -20	g	-5.8
-20 ~ 0	g	-6.2
0 ~ 20	g	-6.5
20 ~ 40	g	-6.7
40 ~ 60	g	-7
60 ~ 80	g	-7.2
-40 ~ -20		7.9
20 ~ 40		8.2
60 ~ 80		8.3