TPH55 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.755501 n_e = 1.762595	V_d = 25.06 V_e = 24.85	n_F - n_C = 0.030140 n_F' - n_C' = 0.030677	Coloring: 0.37 - 0.43 mkm.

Type: Schott
Spectral range: 0.4046561 - 1.01398 mkm.
C1 = 2.9569821 C2 = -0.013856476 C3 = 0.037265687 C4 = 0.0029140249 C5 = -0.00020079792 C6 = 0.00002945722

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.726724
n _s	1.733018
n _r	1.742204
n _C	1.746880
n _C'	1.748219
n _0.6328	1.749482
n _D	1.755242
n _d	1.755501
n _e	1.762595
n _F	1.777020
n _F'	1.778896
n _g	1.795724
n _h	1.812791
n _i	-----
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.6687
P_C,A'	0.3047
P_d,C	0.2860
P_e,C	0.5214
P_g,d	1.3345
P_g,F	0.6205
P_h,g	0.5662
P_i,g	-----
P_C',t	0.7131
P_e,C'	0.4769
P_F',e	0.5408
P_i,F'	-----

transmittance: 10 mm
τ_0.42	0.93
τ_0.44	0.961
τ_0.46	0.973
τ_0.48	0.98
τ_0.5	0.986
τ_0.55	0.994
τ_0.6	0.995
τ_0.65	0.993
τ_0.7	0.993
τ_0.8	0.998
τ_0.9	0.999

Poisson coef.: 0.253
Rigidity: 311 Pa*10⁸
Young module: 780 Pa*10⁸
Knoop hardness: 470
Abrasion: 212

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

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	94