PBL25 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.581438 n_e = 1.584824	V_d = 40.75 V_e = 40.47	n_F - n_C = 0.014267 n_F' - n_C' = 0.014449	Coloring: 0.31 - 0.34 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.4465509 C2 = -0.0097768464 C3 = 0.01753112 C4 = 0.00095250889 C5 = -0.000054837761 C6 = 0.0000047303899

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.566653
n _s	1.570120
n _r	1.574880
n _C	1.577222
n _C'	1.577885
n _0.6328	1.578507
n _D	1.581313
n _d	1.581438
n _e	1.584824
n _F	1.591489
n _F'	1.592334
n _g	1.599692
n _h	1.606744
n _i	1.619355
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7407
P_C,A'	0.3256
P_d,C	0.2955
P_e,C	0.5328
P_g,d	1.2794
P_g,F	0.5749
P_h,g	0.4942
P_i,g	1.3781
P_C',t	0.7872
P_e,C'	0.4863
P_F',e	0.5264
P_i,F'	1.8938

transmittance: 10 mm
τ_0.35	0.943
τ_0.36	0.971
τ_0.37	0.983
τ_0.38	0.987
τ_0.39	0.994
τ_0.4	0.996
τ_0.42	0.996
τ_0.44	0.996
τ_0.46	0.997
τ_0.48	0.997
τ_0.5	0.998
τ_0.55	0.998
τ_0.6	0.998
τ_0.65	0.997
τ_0.7	0.998

Poisson coef.: 0.219
Rigidity: 240 Pa*10⁸
Young module: 585 Pa*10⁸
Knoop hardness: 460
Abrasion: 130

Climatic resistance: 1
Resistance to acids: 1
Phosphate resistance: 2

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	87
100 ~ 300	98

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	C'	2.4
-20 ~ 0	C'	2.5
0 ~ 20	C'	2.6
20 ~ 40	C'	2.8
40 ~ 60	C'	3
60 ~ 80	C'	3.2
-40 ~ -20	D	2.6
-20 ~ 0	D	2.7
0 ~ 20	D	2.9
20 ~ 40	D	3.1
40 ~ 60	D	3.3
60 ~ 80	D	3.6
-40 ~ -20	e	2.9
-20 ~ 0	e	3
0 ~ 20	e	3.2
20 ~ 40	e	3.4
40 ~ 60	e	3.6
60 ~ 80	e	3.8
-40 ~ -20	F	3.5
-20 ~ 0	F	3.6
0 ~ 20	F	3.8
20 ~ 40	F	4
40 ~ 60	F	4.3
60 ~ 80	F	4.6
-40 ~ -20	g	4.2
-20 ~ 0	g	4.3
0 ~ 20	g	4.5
20 ~ 40	g	4.8
40 ~ 60	g	5.1
60 ~ 80	g	5.4